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BRINGING FORWARD DISCOVERYIN AUSTRALIA’S NORTHERN TERRITORY

A09-093.indd

WELL COMPLETION REPORT FOR

POEPPEL'S CORNER NO.1

OP 184 NT VOLUME 2

APPENDICES 5 - 13

",8 : POIOVi

WELL COMPLETION REPORT FOR

POEPPEL'S CORNER NO.1

OP 184 NT VOLUME 2

APPENDICES 5 - 13

",8 : PO IOVi

APPENDIX 5

CORE AND SIDEWALL DESCRIPTIONS

.... • o z w

z .... 0

:.

00

U

Z

w

Cl) a:

...JO

~u

a..

w

o a.

~I ~)

a -'-'r-'-r"-t-+-~t-'rllllll 1 I 11 III 11 I

I 11 11

" I ' T

-;

11 '1'1

'1~111111111

rt)

• I

","".~-~;;;;~';;;'~:;.:;;---'::;""""'-~;~'~~~~~ =>"..::.,...."t''''''''~ r.~ .. _ .• _.~i.:. '::~--.~'--.'"

~ !u· I"'~ f" .,un" I1 -tt"H' ,t" • , ,t

. MF - ttflSfiRE . '. A~CQ ,~."&TRALIA L TP.. j-··sQ. .... ~~ Off'" ,..; t " /:-:~.N~:1;'-,~.~~~~, i'" ~.£JDe.~·AL,~>:e,.QR.e~ 'Q~ StO.RJPTIQJi,ill,lifliltli, ~;W eil~ +':"> \ ~ 'n....a~ .J, . '. 't ..... ,' ". .' 1:

> '", ',. ":. WELL!J?·~P. ~~S,tORNER':l;I~U,. Hd\~~l\ ~~"n 'IF' ': '!p~4"J·t'i .. ~}i.~·::t 1 t;,'

,.-- .. --.-~~ . -- 11'1' #, , -"':" ~.!,~. '36'" - ",-,' .'" .;--. " "'. ..'. ';'S/3f { ~ .. ,.":.,;:...,.~-

,.~. ,~·n~M"~~; ._ .• ~~:.. ... "(-..• ,,Q~. f\H;:o;V.ER~Ii~, ,~;, h',' ~'¥QJ~:l~ :,: "', ,<':~ AfAr,;' .t· ,; ;. , 4«a.~G~ •• 1i~~,~~~ .,' I, .' " . ~ 11 ..

.~,e . M l' n' f!I t .. '11 ilnll·""~,·4t.'jjthli. . ,.. ,: ..:. .• ~ ,. '*' ' " •. \' ' , . ',. - __ ,""'c .... '"'

~ ,4 .!

l{'

~'

. !

35

3,\

33

;1· 1516 "}' ' ":'

:'q "~,, '1' iq, ~:. ;t":(: I' ," f' ,0'; "f ;, , . ' . 'f· f.,t~,t-··, . " 'i"" , . " "j •. " ,~~.,: ~ '~ : .\ ~i.,... Pb :\I..., i ,>. ·· .. 0 dlf1~.~ . rit ;I; ,! ;

. " 'I'. ,I ' I , . I

I

1. '~'"

'. , L

"I

" ;

" {t,l

~~~~

! t "';. t

'.~ 1 r, . /.

w_i. ,

,.~ ! ,

"

L

~~

,.

, ~~

• -";;''i

"".

&'t '.-

" . ,,,,"L <;:_"\-.} ~

""l~~' ..!·"'l~;" , .-. ". . ,:. - '

I

""""1'~'- ., .... "~::,.c:

" .,

t9a4. ? . f' ~ lQ,·, ?!: . ',/' ,'~~:'" I r' '~it~' .. r I :' ~'. 'f ' .. ~ ~ .. ~~;...-\. _10. \. ~ • , .

'1 h:5O .. ,DIlrir'~ l:":l' : ',; - ~ _1""Pf~ -~ , t

... ", :: .... ' ~. .~" ..

~ '.-~ -

• :f

i

.. ~,

2125 NS 11.50 I poor

.----~ -----~-

. Pit·" 'I''''; >.~ ~~;~ \ii

~;: ,~" '~4' rw,

.~~ . r. ;J; .:~.

','

Sample No.

32

31

30

29

28

27

26

25

"

I III "liS I. IIUln. I1 '1Cln ..

NS - NO SHOW MF - MISFIRE AReo AUSTRALIA LTD. T R - TRACE SHOW SO - SHOT OFF

SHEET o -POOR OIL NR - NO RECOVERY SIDE WALL CORE DESCRIPTION <t - FAIR SHOW F - FRAGMENT • - GOOO SHOW WELL:POEPPElS CORNER-l RUN NO.:'} PAGE 2 OF ~,.

NO. ATTEMPT EO: 41 NO. RECOVEREO: 36 PERCENT: 88 DATE: 8/31/84 GEOLOGIST: J. IL Frciter

Oil inches HYDROCARBON SHOWS . OfPTH SHOWS R£COVER'! !PoRosm OOOR SAMPLE fLUORE SCfNCf CUT DESCRIPTION

ft STAIN • • • G-f-P % INHNSITY COLO" flUOR VISIBLE RfSlOUE

2260.5 ~S 1. 50 poor - - - - - .. - .. Sand: Medi urn da rk gr.ay. ,qu~~z,. ' abundant orgao] c , .. t~r:ja~.. s;iU.ceous.

i : soft.cla;v matrix, ,very fine gratned, clear to ml1k.Y quartz, subround. well sorted. high spheric,itN .•

2323 ' NS' 1.50 fair; - - - - - .- - - Siltstone: laminated medium dark , Igreen. medium gray, ,and light gray

~ with trace & discontinous laminations . of oraanic matter • Soft, light (}ray •

;; : cl'ay matrix. ,

" ,

2-415.5 NS 2.'00 poor - .. . - - - - - - Sandstone: Medium dark gray, quartz, dark gray clay matri x. Quartz is

subangular to subround. medium ,; IsDheric1tv .. Doorly sorted.

2467 . ,MS. 2.00 poor - ~ .. ~! - .. - - - .. Siltstone: Medium light gray, ~ighly

"', calcareous, firm. dull. . - ."-'

1

Muds tone:· Grayi sh 011 Ye' green • .,) " 2556 ;, 'r~s, 2~0' poor' - '( '- - - - - - - , slightly calcareous. firm. dull. "

2584 NS 2.0. : ,

" Mudstone: Dark greenhh gray. not poor, .. - - - .. - - -ca lcareous. very firm, dull.

2625 ~S 2.0 poor - - - - .. - - - Silty mudstone: Greenish black, calcareous, very firm, dull.

2630.5 NS 2.0 poor - - - - - - - - Siltt mudstone: Greenish gray, not calcareous. hard. dull.

-~---.-. --. .- ---,-.---- . . -

Sample ~o.

?4

23

22'

21

20.

19.

_., ' , ...

•• I~ ,.". t t ,~"'U' 't '.nl~ .. HS -NO ~HOW '4·f - MISF",e ARCO AUSTRALIA I,. TD, T R - TR~CE SHOW so - SHOT OFF o - POOR OIL HR - NO ReCOVERY SIPEWALL CORE "DESCRIPTJON SHeET <t. - F~ SHOW f - FqAGMENT f

• - GOOD SHOW WELL:PQEPPElS CORMER-l RUN tto.: 1 PAGE~ pf6

41 36 88 DATE: . a/31l84 '"

,.

NO. ATTEMPTED: NO. REt:0VEAED: PEACEN.,.. oa:0t-QQtaT: H:.Camara

"URoc.uaON SHOWS .. .. ' . "

Oil nches Of'-'" . SHOWS [R'£cov£tn' ifOtJoSlTY DOOR

StAll! SAMPLE Huo.UtlllCf CIH 8~SC .... fto.

'ft • It! G~f-' % "ltU,s.fT COlOR flUOR vls.eu R£SlOUf ., S4ndy stltston~and limestone, 26lH MS 3/4 0 P - - - - - - -

s11tstone ~r~ graf. ~.lc.reous • ..

blocky. ·flrm,dunt.ssi~~' Ho ~how$. 'l1lQestone. 1 i. IllUdstooe, brownish gr.oy t tUlrd, nopQto$ity _"0 , . shows • . . Cl ays tone, brown iSh b 1 act t S 111ceous •. 2683 ~S 1-3/4 0 P - - - ~ "l:' - ... firm. bloc:ky, dull •• ssive. No ,showS;

2694 MS 2 0. P - ~ - - - - - Claystone, ollve black. siliceous. firm, blocky, dull, very finely

laminated. No shoWs.

2721 MS 2 0 P - - - - - - - Claystone, 'olive black, sl1iceous~ firM, blocky t dull t mas$ive.~ No shQws:

'>

2830. ' NS 1~ 0 P - - - - - - - Claystone, olive black, slightly calcareous, firm, blocky., dull,

massive. No shows.

3026 NS 2 0 P - - - - - - - Snty claystone, olive black, sHahtlv calcareous ll firm. blocky, dull, maSSive, with dark greenish gray slltstone, calcareous, firm to moderately hard, blocky, dull, mass; ve. No shows.

l--.....

Sample No.

18

17

16

15

14

13

12

11

• Itl ..... •• 11"'11' I1 IIUII ••

NS -NO SHOW Mf - MISfIRE AReo AUSTRALIA LTD. TR - TRACE SHOW SO - SHOT OFF o -POOR OIL NR - NO RECOVERV SIDEWALL CORE DESCRIPTION SHEET Cl - FAIR SHOW F - FRAGMENt • - GOOO SHOW WEU:POEPPElS CORNER-l RUN NO.! 1 PAGE4 OF 6

NO. ATTEMPTED: 41 NO. RECOVERED: 36 PERCENT: 88 DATE: 8/31/84 GEOLOG'ST~ M. Ca_ra

Oil I1ncne5 HYDROCARBON 'KO.5 . DEPTH StIOWS laECOVERY !PoROSITY ODOR SAMPLE HUORt:SC£NC£ CUT DESCRlPtlO.

ft • • • G~f-' SlAlH

"4 UHE"Sln COLOR flUOR. VISI8LE R(SIOOE

3102~ NS 2 0 P - . - - - - - - Siltstone, olive gray, siliceous, . firm -when dry but silt grains di ssem-inate when wetted, blocky, dull. massive. No shows.

3109 MS 1 0 P - - - - - - - Siltstone. olive gray, calcareous. Iqlauconitic. firm to very hard .. blocky, dull. massive. No shows.

3112 MS 1-3/4 0 P - - - - - - - Siltstone, as above.

3317 MS l~ 0 P - - - - - - - Claystone, olive black. calcareous, silty, firm. blocky. dull, massive. No shows.

3327 NS 2 0 P .- - - - - - - Claystone, olive black, calcareous, firm, blocky. dull. massive. No shows

3411 NS 2 0 P - - - - - - - Claystone, olive black, slightly calcareous, firm, blocky, dull. massive. .No shows.

3553 . NS 1~ 0 P - - - - - - - Claystone, dark gray, slightly calcareous, soft-fint, blocky, dull, very finely laminated. No shows • .

3651 NS 1~ 0 P - - - - - - - Clays tone, brownish black, calcareous firm, blocky, dull, very finely laminated. No shows.

Sample No. ;

3

2

1

• Ill .... '

HS - HO SHOW

T R - TRACE. SHOW

o - POOR OIL

(I - FAIR SHOW

• - GOOOSHOW

1 NO. ATTEMPTED: ., . ' ,

. OIL lpl;lw~ Df"H ' SHOWS '" _ft , . I •

4303 NR

4417~ NS 1

4460 .NS ll.t

.. "

"

" '- , '.

"

. '

,.~ ';' , " . ~ ~ . ~

•• IIClIU' 'I,IICIU .. ~.' . ' "."',

Mf: - MISFIRE ARC';> AUSTRAL:I" L.TO. ~

SO - SHOT OFF i· NR - NO RECOVERY SIDEW·AL;L C,Q;R~ {);t;$'CR~P'tON, ~;SH£eT

•• ~ "" , ,i.,~ I't ".'.. ' • '> ' . ,

F - FRAGMENT WELL:POEP~~lS ;C;:~~,~~~l RV"'3~,o.: 1 i ~~AG.E j .. ,. '6 .

I ' ~ i '

88"-, 'I',. ..

~l HO. RECOVERED: 36 PERCENT: '.DAT~', 81.3:1[84 ,U.Q4'q,otS': M. ,CAJrnIlra ~ . , : ' " ' : ': ... ~ , '" ~

HYDROCARBON SHOWS :. '~'-'>11 ,-, ,..." ,,, .... .

POROSITY OOOR. saMPLE flUORESC£NC[ cu,~, . .- 'It .. ~ '5 C R t , f; J,.o.,

SlAI"· , G-f-P % UHfHSITY .C·Ol()R fLUOR. 'vISI.'!-~ . RlSIDU( .

,

, , . ".. ,,,.~," ,'.' ," ."

0 P - - - - - - - ClaystQ"e •. grayish bl"(;k,, slightly ca lc~fi rmto hard micro-.. ~~""

....

micaceQus..blocky ;to sub;fi·ss,tJe,t dull. Ver,Y fine,lY lamina,ted. ,No shows'

0 P t)~ys tone ,gr~YJ~h ,black~' $H:9t\tl y . - - - - - - - cal careous t firm to ;.1JI)<k!r~'tely (bar.4.:

" '. '. . ,', .,' , . ."

m1 cromi cacfWus, block)". mass he. No shows. . .

.... -!'

.. , '

•

-- .~~~.~ -,-

CORE NO.

1

2

3

4

5

6

7

8

9

10

11

E X LOG

POEPPELS CORNER 11

SIDEWALL CORE DESCRIPTIONS - Duncan New

DEPTH

4460'

4417.5'

4303'

4298.5'

4028.5'

3912'

3898 1

3876 1

3846.5'

3704'

3651 1

DESCRIPTIONS

Claystone Dark brown gray, 'firm, massive to subfissile in part, gd tr disseminated and nodular pyritic, slightly calc in pt.

Claystone - as above, with tr glauc grns, rare thin bands of sandstone, very fine grained, abund. clay mtx, com glauc, slightly calc in pt.

N/R

Claystone, dk brn 91, firm, mas-subfis, tr dissem py, grades in part to siltstone med light gray, soft-firm, slightly calc, com v f quartz grains, gd tr altered feld and glauc, abund clay mtx.

Claystone, dark gray, firm, subfis, tr dissem and nodular py, tr-occ silty material, very weakly calc in pt.

Claystone, as above, but with tr v f qtz grns.

Claystone, dk gy, firm, massive, tr dissem and nod py, tr v f qtz and glauc grains, v weakly calc in part.

Claystone as above.

Siltstone, dark brown gray, firm-mod hard, subfis, tr v f qtz, tr dissem py, abund clay mtx, grades in large part to claystone, moderately calc in part.

Claystone, dark gray, firm, mass-subfiss, common Inoceramus shell fragments, strongly calc.

Claystone, dark brn gy, mas-subfis, firm, tr dissem py, rr v f qtz and glauc grains, gd tr l/s grains, moderately calc.

· POEPPELS CORNER 11

EXLOG SIOEWALL CORE DESCRIPTIONS

Page 2

12

13

14

15

16

17

18

19

20

21

22

23

24

3553'

3471'

3327'

3317'

3112'

3109'

3102.5'

3026'

2830'

2721'

2694'

2683'

2681'

Claystone, dark brown gray, firm, ~ssivesubfissile, rare pyrite veins, rare dissem pyrite, v rare carb flecks, non-v weakly calc.

Claystone, as above.

Claystone, med-dk brn gy, firm, massive, trace disseminated pyrite, v rare carbonaceous flecks. Very weakly calcareous in part.

Claystone, as above.

Sandstone, light green gray, massive, softfirm, very fine, moderately sorted, subrounded to round~d, common white clay (calcareous?) matrix, common very fine glauconite grains, trace weathered feld, trace carbonaceous flecks, v~ry calcareous, nil to trace visual porosity.

Siltstone, light greenish gray, massive, soft, abundant white clay matrix, common very fine quartz, good trace glauconite, very calcareous.

Siltstone, medium gray brown, massive, firm, very fine, ~od srtd, subrounded to rounded, com b~own silt and clay matrix, com white grains, com glau9, trace carb flecks, trace visual porosity, non calcareous, grades in parts to sandstone.

Siltstone, medium brown gray, firm-mod hard, abundant clay matrix, gd tr carb flecks and lams, tr white (feld?) grains, very slightly calcareous, massive.

Claystone, dark brown gray, firm-mod hard, massive,... subfiss, good trace silt size carb flecks, non-very weakly calc.

Claystone, as above, with rare pyrite.

Siltstone, as for 3026' (No. 19).

Claystone, medium gray to medium brown gray, massive, f~rm, gd tr v f qtz grains, trace silt to very fine carbonac grains, good trace white (feld?) grains, non-calcareous.

Claystone, as above.. Broken fragments. Moderatell ca.lc in part •

POEPPELS CORNER '1

EXLOG SIDEWALL CORE DESCRIPTIONS

Page 3

25 2630.5'

26 2625'

27 2584 f

28 2526'

29 2467'

30 . 2415.S'

31 2323'

32 2260.5'

33 2125'

34 2100'

Sandstone, very light gray, firm, massive, very fine to fine, subangular to subrounded, moderately sorted, common to abundant white clay matrix, good trace glauconite and carbonaceous grains, trace lithic grains, non-calc, trace-nil visual porosity.

Claystone (as for 123, 2683') with thin laminae of sandstone (as for '26,2630.5').

Siltstone, medium brown gray, firm, massive, common clay matrix, common silt size to very fine quartz grains, rare carbonaceous flecks, rare white feld(?) grains, non calcareous.

Claystone, mod brn gy, firm, massive, gd trace glauconite and quartz grains, with thin sandstone lamellie.

Claystone, as above, with good trace carbonaceous detritus, trace lithic grains •

Sandstone, light to medium green gray, firm, massive, very fi~e to fine, occ medium, moderately sorted, subangular to rounded, good trace glauc carbonac and lithic grains, trace to common argillaceous matrix, non-calc, trace to poor visual porosity.

Sandstone, as above, dominantly very fine grained.

Sandstone, light green gray, firm, massive, fine-very fine, dominantly fine, moderat sorted, subrounded to rounded, trace argillaceous matrix, good trace green (volc?) grains, good trace feldspar, trace carbonaceous and lithic grains, poor to fair visual porosity.

Siltstone, medium brown gray, firm, massive, common clay matrix, common silt to very fine quartz grains, good trace carbonaceous and white comm feld (7) grains.

Sandstone, as for No. 32 (2260.5').

Sample No.

10

9

8

7

6

5

4

... IL UII. •• IIU ... ' 'I fIUU ..

NS -NO SHOW MF - MISFIRE AReo AUSTRALIA L TO. T R - TRACE SHOW so - SHOT OFF I

o -POOR OIL NR - NO RECOVERY SIDEWALL eo RE 0 E se RI PTI ON SH EET et - FAIR SHOW F - FRAGMENT • - GOOO SHOW WELL:POEPPElS CORNER-1 RUN NO.: 1 PAGE 5 OF 6

NO. ATTEMPTEO: 41 NO. RECOVEREO: 36 PERCENT; 88 DATE: 8/31/84 GEOLOGIST: M. Camara

Oil inche HYDROCARBON SHOWS • DEPTH SHOW~RECOVERYPOROSITY ODOR SAMPLE flUORESCENCE CUT DE S CRI P T 10 N ft STAIN

• • • G-f-P % INTENSITY COlOR flUOR VISlllE RESIOUE

3704 NS lk 0 P _ _ _ _ _ _ _ Claystone. brownish black, firm, 2 blocky, dull, very finely laminated,

with lamina of fossil shell fragments No shows.

3846~ NS lOP - - - - - - - Claystone: brownish black, calcareous firm, blocky, dull, massive.

Fai t yellow thin resi ~ual rin~ on sp t dish No Significant shows. aft r crushi'lg sample.

3876 NS l~ 0 P _ - - - - - - Claystone: brownish black, siliceous, firm, blocky, dull, massive. No shows

3898 NS 1% 0 P - - - - - - - Claystone: brownish black, siliceous, soft to moderately firm, blocky, dull, massive. No shows.

3912 NS' lk 0 P _ _ _ _ _ _ _ Claystone: grayi~h black, silic~ous, ill, hard, blockv, brlttle, dull, sl1ghtly , , micromicaceous t dull, massive.

. No shows. , ! , Claystone: grayfsh blaCk, Sllghtly ,

'4028~ NS 1~ 0 P - - - - - - - calcareous, hard, sub-fissile, dull, massive. No shows.

4298~ NS lOP - - - - - - - Claystone: brownish black, slightly calcarpous siltv. blockv. firm. dull, very finely laminated. No shows.

L-__ -L_'--_...L.-__ J __ • _____ •• _

POEPPELS CORNER 11

EXLOG SIDEWALL CORE DESCRIPTIONS

Page 4

35 1934.5'

36 1675'

37 1576'

Limestone, light orange brown gray, soft, massive, very argillaceous.

Sandstone, light to medium brown-green gray, soft, massive, very fine to medium, dominantly fine, subangular to subrounded, poorly sorted, trace to common. argillaceous matrix, good trace lithic and glauc grains, nil-poor visual porosity.

Sandstone, very dark gray, firm, massive, fine to coarse, dom medium, poorly sorted, angular to subrounded, common argillaceous matrix, common to abundant volcanic grains, good trace lithic grains, fair visual porosity.

Sample No.

1

2

3

4

5

6

•• Il ",., •• .ulun .1 IUIU ••

NS - NO SHOW MF MISFIRE AReo AUSTRALIA LTD. TR - TRACE SHOW SO - SHOT OFF o -POOR OIL NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET (I - FAIR SHOW F - FRAGMENT • - GOOD SHOW WELL:POEPPElS CORNER-l RUN NO.: 2 PAGE 1 OF 13

NO. ATTEMPTED: 81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST: M. Camara

Oil inches HYDROCARBON SHOWS . OEItH SI1OW~ iRECOVERY POROSITY OOOR SAMPLE fluORESCENCE CUT DESCRIPTION

STAI'" • • • G-f-P % INTENSITY COLOR flUOR. VISIBLE RESIDuE

8404 NS ~ - - - - - - - - - Siltstone, medium light gray, calcareous, hard, blocky to subfissl1e (shattered), dull, massive, with minor amounts of medium grained calcite crystals (veining), and with minor amounts of fine to very fine grained, well rounded, high spher-icity, quartz grains. Massive ..

8348 I~S ~ - - - - - - - - - Siltstone, as at 8404' but with greater amounts of calcite occurring in fine veins. Massive.

8207 NS ~F - - - - - - - - - Siltstone, light bluish gray, . slightly to moderately calcareous, hard, shattered, blocky, dull, with trace amounts of fine grain quartz and calcite. Massive.

8196~ - NR - - - - - - - - - -8193 ~ Not described. SWC to be sent to

Core lab for analysis. Appears to be siltstone as at 8207'. Massive.

8186 - NR - - - - - - - - - -

.~--~~~~- ",- -'-~------

Sample No.

7

8

9

10'

11

12

13

• IlL .. I.S

HS - HO SHOW T R - TRACE SHOW o - POOR OIL .. - FAIR SHOW • - GOOD SHOW

NO. ATTEMPTED:

OIL inches DEPTH SHOWS RECOVERY

ft • • • 8178 ~

8175 - NR

8163 - NR

8113 - NR

8049 - NR

7955 NS J:i

7947 NS 1-3/4

•• UUU" I1 IUIU ..

MF - MISFIRE ARCO AUSTRALIA L TO. SO - SHOT OFF NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET F - FRAGMENT

WELL:POEPPElS CORNER-l RUN NO.: 2 PAGE2 OF 13

81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST: M. Camara

HYDROCARBON SHOWS . POROSITY DOOR SAMPLE flUORESCENCE CUT DESCRIPTION

STAIN G-f-P % IIHENSIlY COLOR fLUOR VISIBLE RESIDUE:

Not described. SWC to be sent to ICorp. Lab for analv~i~ ADDp.ar~ to bp.

s11tstone as at 8207 1• Massive.

- - - - - - - - - -- - - - - - - - - -- - - - - - - - - -- - - - - - - - - -

Siltstone, medium gray, very - - - - - - - - - ca 1 careous, hard, b locky to subfl ss 11 e

(shattered), dull, about 30% calcite, occurring as individual crystals, and a$ vein filler, and about 10-20% quartz occurring as very fine grained to fine grained well rounded high sphericity grains. Massive.

- - - - - - - - - Clayey siltstone, greenish gray to light bluish gray, calcareous, firm when dry, but hydrates (swells and becomes soft when wet), blocky, dull. Massive. Heaving.

Sample No.

14

15

16

17

18

19

• ilL Uti, •• IEUln, .1 IUIEI ..

NS - NO SHOW MF - MISFIRE AReO AUSTRALIA L TO. T R - TRACE SHOW SO - SHOT OFF o - POOR OIL NR - NO RECOVERV SIDEWALL CORE DESCRIPTION SHEET <I - FAIR SHOW F - FRAGMENT

• GOOD SHOW WELL: POEPPELS CORNER-1RUN NO.: 2 PAGE 3 OF 1:3

NO. ATTEMPTED: _8L NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST: M. Camara

Oil inche~ HYDROCARBON SHOWS . DEPTH SHOWS IRECOVERY POROSITY ODOR SAMPLE fLUOR[ SCENCE CUT O[SCRIPTlO" ft STAIN

I • • G-F-P "10 "dENSITY COLOR fluOR VISIBLE RESIDUE

7941~ ~S ~ - - - - - - - - - Shale, medium gray, calcareous, hard to very hard, fissile to subfisslle, dull. 20% fine to medium grain size nodules of white calcite. Massive.

7913 NS ~ - - - - - - - - - Silty shale, grayish black, slightly calcareous, firm to hard, fissile, micromicaceous. Trace medium grain size pyrite nodules, some calcite occurring as individual crystals and vein fill ers. Massive. Siltstone, greenish gray, calcareous,

7900 NS 3/4 - - - - - - - - - slightly micromicaceous, firm to hard blocky to subfissile, dull. MasslVe.

7889 NS 3/4 - - - - - - - - - Clayey siltstone, light bluish gray, calcareous, firm, blocky to chalky, dull. Massive. Shale, moderate brown, siliceous, hard, fissile, dull, probably thinly laminated.

7883 NS 3/4 - - - - - - - - - Shale, black, siliceous, firm, fissile, subvitreous, carbonaceous, finely laminated.

Shale, dark gray, siliceous, firm, 7850 US 3/4 - - - - - - - - - fissile, dull. Finely laminated,

carbonaceous. -

Sample No.

20

21

22

23

24

25

• ilL n ••• NS - NO SHOW T R - TRACE SHOW o - POOR OIL ca - FAIR SHOW • - GOOD SHOW

NO. ATTEMPTED:

OIL ~nches DEPTH SHOWS RECOVERY

ft • • • 7837 NS ~

7773 NS 1!.i

7746 NS 1!.i

7711~ NS ~

7700 NS 1

7677 NS 3/4

•• lunn, I1 IUIU ..

MF - MISFIRE AReo AUSTRALIA L TO. SO - SHOT OFF NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET F - FRAGMENT

WELL:POEPPELS CORNER-l RUN NO.: 2 PAGE 4 OF 13

81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST; M. Camara

HYDROCARBON SHOWS . POROSITY ODOR SAMPLE fLUORE SCENCE CuT DESCRIPTION

G-F-P STAIN

Of. INTENSITY COlOR fluOR VISIBLE RESlouE

- - - - - - - - - Shale, medium dark gray, siliceous, firm, fissile, micromicaceous, traces of disseminated pyrite, dull. Finely laminated.

- - - - - - - - - Siltstone, dark greenish gray, siliceous, firm, blocky to subfissile micromicaceous, chloritic, 10% very fine Qrained disseminated Quartz' sand Massive.

Siltstone, dark greenish gray, - - - - - - - - - clayey, slightly calcareous, firm,

blocky, dull, chloritic, 10-20% very fine grained quartz. Massive.

- - - - - - - - - Siltstone, medium light gray, siliceous, clayey, firm to hard, bloc ky, du 11 • Massive.

- - - - - - - - - Claystone, dark reddish brown, siliceous, soft, blocky, dull. Ferruginous, Massive.

P - - - - - - - - Sandstone, very light gray, quartz, silty and clayey, clay matrix, very fine grained, rounded, high sphericity moderately sorted, soft to firm. Massive.

0

-'--- -------~ .. - .. _.- ---------

Sample No. 26

27

28

29

30

31

• III sun •• IUtlEn I1 IleUS .. i .

NS - NO SHOW MF - MISFIRE AReo AUSTRALIA LTD. T R - TRACE St-K')W SO - SHOT OFF o - POOR OIL NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET (I - FAIR SHOW F - FRAGMENT • - GOOD SHOW WELL:POEPPElS CORNER-I RUN NO.: 2 PAGE 5 OF 13


OIL inche5 HYDROCARBON SHOWS . DEPtH SHOWS RECOVERY POROSITY OOOR SAMPLE flUORESCENCE CUT DESCRIPTION

ft. • • • G-F-P STAIN

% INTENSITY i COLOR fluOR \/ISIBLE IHSIOUE

7664~ NS 3/4 - - - - - - - - - Claystone, medium gray, siliceous, firm, blocky, dull. Massive.

7633 TR ~ - - - 10 dull yellow - - - Clayey siltstone, very light gray, siliceous, soft, blocky, dull. Massive.

slow pale moderatl Siltstone, grayish black, siliceous, 7588 NS 1 - - - - - - strm yellow yellow

L'-wh carbonaceous, soft to firm, blocky, 'I,TI ring to pale dull, slightly micromicaceous. yellow Massive.

7577 NS 1 - - - - - - - - - Clayey siltstone, medium light gray, sliohtlv calcareous. firm. blocKv.

I

I __ dull. Massive.

p00r' - - - - - - - - Interlaminated sandstone and lignite. 7570 NS 3/4 ng~e Sandstone, white, very fine grained,

silty, quartz, clay matrix, soft, very fine grained, well rounded, high sphericity, poor porosity. lignite, black, slightly micro- . micaceous, subfissile, subvitreous.

7563 0 ~ H~~am- r~rt ye 1. Silty shale, medium dark gray,

- - - - - - mg, ' p~2w~ ring siliceous, micromicaceous, firm, ~~erd"{;

6r1ght, fissile, dull. laminated.

D.I ue-white

.-.

Sample No. 32

33

34

35

36

37

• IlL n .. s •• lECtin, I1 IUIU ..

NS - NO SHOW M F - MISFIRE ARCO AUSTRALIA LTD. T R - TRACE SHOW SO - SHOT OFF

o - POOR Oil NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET <» - FAIR SHOW F - FRAGMENT

WELL: POEPPELS CORNER-I RUN NO.: 2 • - GOOD SHOW PAGE 60F 13

NO. ATTEMPTED: 81 NO. RECOVERED: 70 PERCENT: 86

DATE: 9/20/84

GEOLOGIST: M. Camara

Oil inches HYDROCARBON SHOWS . DEPTH SHOWS RECOVERY POROSITY ODOR SAMPl E fLuORE SCE NCE CUT OESCRIPTION

ft • • • G-f-P STAIN

% INTENSITY COlOR flUOR VISIBLE RESIDuE

7556 0 3/4 ~~eam- Ylght ~?TraLl Silty snaTe and sandy slltstone - - - - - - y~ ow Silty shale: dark gray, slightly 1ng brown r1ng

~~eral: calcareous, m1crom1caceous, t1rm, bnght· fissile, dull. Laminated. Silt-blue- stone:very light gray, slllceous, white firm, sandy and clayey, blocky,

dull. Laminated.

7550~ NS ~ F - - - - - - - - Sandstone: very light gray, quartz, silty, firm, very fine grained, rounded, high sphericity, well sorted. Massive.

slow - - Siltstone, dark gray, siliceous, 7528 0 3/4 - - - - - - a~nam. micromicaceous, firm, subfissile,

yellow dull, laminated. green '1t

C;Jow Claystone, grayish black, siliceous, 7513~ TR 3/4 s rm. - -- - - - - - pale firm, splintery to blocky, dull.

yellow Massive.

7465~ TR 1~ - - - - - - v.dull thin Sandy siltstone, olive gray, sili-yellow - yellow ceous, firm, blocky, dull, Massive.

green ring

7454 TR ~ - - - - - - du 11 - th1n Claystone, medium dark gray, slow yellow siliceous, firm, blocky, dull. s rm 'r;no yellow Massive. green

--------- .~ . -~

Sample No.

38

39

40

41

42

43

44

• III nlls

NS - NO SHOW

T R - TRACE SHOW

o - POOR OIL

<a - FAIR SHOW

• - GOOD SHOW

NO. ATTEMPTED:

DEPTH ft

7423 NS l:!

•• UClVEII II IUln ..

81

MF - MISFIRE

SO - SHOT OFF

NR - NO RECOVERY

F - FRAGMENT

NO. RECOVERED:

7395 INS 3/4· -

7395 INS l:!

7367l:! ITR 1

7367l:! 3/4

7259 .'4S l:! G

7248 TR 1~

AReo AUSTRALIA L TO. SIDEWALL CORE DESCRIPTION SHEET

WELL: POEPPELS CORNER-l RUN NO.: 2 PAGE 7 OF 13

70 86 9/20/84 PERCENT: DATE: GEOLOGIST: M. Camara

HYDROCARBON

COLOR

SHOWS DESCRIPTION

Sandy siltstone, light gray, siliceous, firm, blocky, sucrosic. ~assive.

~layey siltstone, very light gray, siliceous, firm, hydrates but does ~ot ~well when wet, blocky, chalky. t-1asslve. ~ot described~ SWC to be sent to ~ore Lab for analysis.

mod. bl-wh s ow

v:1ry I }~lln ~laystone, grayish black, siliceous, ~e To~ ye ~ow ~irm, blocky, dull. Finely laminated

strmg brown I gold

orl gnL I paTe blue brown

whi te I green rapid strmg

tFlfCK ring bright yellow

Not described. SWC to be sent to ~mdel for analysis.

Sandstone, very light gray, quartz, clean, soft, poorly cemented, very fine to fine grained, subrounded, high sphericity, well sorted. Massive Claystone, brownlsh black, s11iceous, firm, splintery, dull. Finely laminated, carbonaceous.

Sample No.

45

46

47

48

49

50

51

" IlL nlls

NS - NO SHOW T R - TRACE SHOW o -POOR OIL <t - FAIR SHOW • - GOOD SHOW

NO. ATTEMPTED:

OIL DEPTH SHOWS RECOvEfI'!'

ft • • • 7206 () 1

7176 TR 1

7099 ~S 3/4

7089 3/4 TR rumbs

7052 k 2

7025 3/4

7020~ TR ~

". IUIUIr I1 IUln ..

MF - MISFIRE AReo AUSTRALIA LTD. SO - SHOT OFF NR - NO RECOVERV SIDEWALL CORE DESCRIPTION SHEET F - FRAGMENT

WELL:POEPPELS CORNER-l RUN NO.: 2 PAGE 8 OF 13

81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST: M. Camara

HYDROCARBON SHOWS . POROSITY OOOR SAMPLE FLUORESCENCE CUT OESCRIPTION

STAIN G-f-P % INTENSITY COlOR flUOR VISIBLE fiE SIOU£

G - 40 v. dull yellow v.dull thin Sandstone, as at 7259' but with a - yel w/ - yellow· small amount of silty matrix material slow

h crus ring cut . ~laa}

v.pale mod Claystone, brownish black, as at - - - - - - brn-gn film 7248' . - SlOW yellow c;trm~ bl-w gold

- - - - - - - - - Siltstone, very light gray, siliceous clean, quartzose, blocky, sucrosic. Massive, soft.

V.OUII - Trace Pure quartz siltstone as at 7099'. - - - - - - v.slow yellow crush ring cut

Not described. SWC to be sent to Core Lab for analysis. Appears to be quartz siltstone as at 7089 and 7099' . Not described. SWC to be sent to Core Lab for analvsis. ADDears to be quartz siltstone as at 7084 and 7099 1

•

- - Mod bri pale Mod Claystone, olive gray, siliceous, - - - - slow bn-gn film firm but brittle and splintery, dull. strmg bright Massive. bl-wh yellow

'----- - .. - -- .

Sample No.

52

53

54

55

56

57

I IU S"'S I. lEctin, I1 nnu ..

NS - NO SHOW MF - MISFIRE AReo AUSTRALIA L TO. T R - TRACE SHOW SO - SHOT OFF

o - POOR OIL NR - NO RECOVERV SIDEWALL CORE DESCRIPTION SHEET (t - FAIR SHOW F - FRAGMENT

PAGE 9 OF 1.3 • - GOOD SHOW WEu:POEPPElS CORNER-l RUN NO.: 2

NO. ATTEMPTED: 81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9L20L84 GEOLOGIST: M. Camara

HYOROCAfl80N SHOWS . Oil

DEPTH SHOWS R[cOVEfIY POROSITY OOOR SAMPLE nUORE SCENC£ CUT . DESCRIPTION

ft I • I G-f-P STAIN

% IHTEI!ISITY COLOR fluOR VISIBLE RESIDUE

7016~ NR - - - - - - - - - - -

7007 TR 3/4 JOOd bri v.pale thick Claystone, as at 7020~, but very - - - - - - bl-wh gn-bn yellow finely laminated. slow ring strmg

6977 TR 3/4 100 v. dull omg-bn JOOd v.pale thick Claystone, as at 7020~ but olive - - - bright gn-bn yellow black and very finely flat laminated. blue- ring white slow strmg V.Clull - trace Sahdy siltstone, very light gray,

6956 TR ~ - - - - - - yel-gn yellow siliceous, pure quartz, soft to firm, v.slow ring blocky, sucrosic. Massive. cloudy

6931~ TR 3/4 V-:Oull - trace Clayey siltstone, light olive gray, - - - - - - v.s low- yellow siliceous, hard, blocky, sucrosic, yel-grn ring quartzose, with occasional very fine cloudy flat laminations of dark brown

carbonaceous material.

k dull v.thln Clayey siltstone, light olive gray, 6851~ TR 2

crunb - - - - - - v.slow yellow - as at 693l~ but laminations cannot be strmg. rlng seen due to condition of SWC. yel-gn .

--

Sample No.

58

59

60

61

62

63

64

I: 111 'UIS 1:. uunn .1 IUln ..

NS -NO SHOW Mf - MISFIRE ARCO AUSTRALIA L TO. T R - TRACE SHOW SO - SHOT OFF o - POOR OIL NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET <» - FAIR SHOW F - FRAGMENT • - GOOD SHOW WELL:POEPPElS CORNER-1 RUN NO.: 2 PAGE100F 13


Oil HYDROCARBON SHOWS . DEPTH SHOWS RECOVERY POROSITY ODOR SAMPLE flUORESCENCE CUT DESCRIPTION

ft I I I: G-F-P STAIN

% INHftSITY COLOR fluOR VISIBLE RESIDuE

6837 US ~ Clayey siltstone, light olive gray as crumb~ - - - - - - - - - at 6931~. SWC too disrupted to see

structures.

6824~ - NR - - - - - - - - - -6729 ~

Not described. SWC to be sent to Core lab for analysis.

v. au I I - tHin Sandstone, very light gray, pure 6729 TR ~ F - - - - - yel-gn yellow Quartz, some siliceous silt, poorly

ring cemented, soft, very fine to fine grained, subrounded, high sphericity, well sorted. Massive.

6717 TP 1!.i Mod v.pale thick Claystone, olive black, siliceous, - - - - - - bright gn-bn yellow firm, blocky, dull. Massive. blue ring white s 1 0Ir1 strmg

6670 TR 1 F ~n! thin Alternating fine laminations of - - - - - - whlle - yellow light gray and olive black siltstones slow ring Both siltstones are siliceous, firm, cloudy splintery to.subfissile,

micromicaceous, dull.

Npt descrl bea. SWC to be sent to 6544'2 1!.i Core lab for analysis.

-- --- - -----

Sample No.

65

66

•• 11 .....

NS - NO SHOW

T R - TRACE SHOW

o -POOR OIL

(I - FAIR SHOW

• - 0000 SHOW

NO. ATTEMPTED:

Oil

Dtt'H SHOWS RECOVERY I I •

6544la TR ll;a"

6405 TR 1"

•• '''''11' .1 unu .. MF - MISFIRE AReo AUSTRALIA LTD. SO - SHOT OFF

NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET F - FRAGMENT

WELL: P0EPPELS CORNER#! RUN NO.: 2 PAGE 110F 13

81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9L20L84 GEOLOGIST; M~ Camara

HYDROCARBON SHOWS

POROSITY OOOR SAMPLE flUORESCENCE CuT O£SCIII'TlON STAIN

G-f-P % INTENSITY COLOR fLUOR. VISI'LE R£SIOUE

F - - - - - dull - thin Sandstone, very light gray as at yell- yellow 6729 1 but with slightly more gn film siliceous silt matrix. cloudy Massive.

Not described. SWC to be sent to Core lab for ana 1 vs is •

.

Sample No.

67

68

69

70

71

72

73

•• Il n.w. •• IUI"n .1 IIUU ..

NS - NO SHOW Mf - MISFIRE AReo AUSTRALIA L TO. T R - TRACE SHOW SO - SHOT OFF o - POOR OIL NR - NO RECOVERY SIDE WALL CORE DESCRIPTION SHEET <» - FAIR SHOW F - FRAGMENT • - GOOD SHOW WELL:POEPPElS CORNER-l RUN NO.: 2 PAGE 120f 13

NO. ATTEMPTED: 81 70 NO. RECOVERED: PERCENT: 86 DATE: 9/20/84 GEOLOGIST: M. Camara

Oil HYDROCARBON SHOWS . DEn." SHOW S RECOVER Y POROSITY ODOR SAIoIPL £ flUORE SCEMeE cuT DESCRIPTION

STAIN • • • G-F-P % INTENSITY COLOR flUOR VISIBLE RESIDuE

6016~ TR 1 F F - thin Sandstone as at b544~ but with an - - - - - - yellow intervening lamina of lignite: 'soft, ring blocky, subvitreous. black.

5994 TR 3/4 F F v. dull thin Sandstone, as at 6544~. - - - - - yel-gn ring -

5715 NS 1 G - - - - - - - - Sandstone, very light gray, pure quartz, some siliceous silt as matrix poorly cemented, soft, very fine grained to fine grained, rounded, high sphericity. Interlaminated, flat laminations, with light olive gray siltstone, sandy, siliceous, soft, granular, sucrosic.

5068~ TR 1 F - - - - - - v. dull thln 1::'111 ceous s 11 tstone, very 11 gnt gray, yel-gn - ring quartzose, soft, granular, sucrosic.

MasslVe.

4904 TR 1\ - - - 10 v.' dull yellow - trace Siliceous siltstone, as at 506~. - l~l~~oW

4796 TR 1 F G - - - - trace Sandstone, very light gray, quartz, - - - yellow some siliceous silt matrix, poorly ring cemented, soft, very fine grained,

rounded, high sphericity, very well sorted. Massive.

4779 1\ Not described. SWC to be sent to Core lab for analysis. --- ---

Sample No.

74

75

76

77

78

79

80

81

• tn Uti,

NS - NO SHOW T R - TRACE SHOW o - POOR OIL <t - FAIR SHOW • - GOOD SHOW

NO. ATTEMPTED:

Oil DEPTH SHOWS RECOVERY

ft • • • 4779 NS 1 F

4776 - NR

4708 NS ~ F

4708 ~

4615 - NR

4604 TR 1~

4604 1!.J

4600 - NR

•• Iluun I1 IICIII ..

MF - MISFIRE ARCO AUSTRALIA LTD. SO - SHOT OfF NR - NO RECOVERY SIDEWALL CORE DESCRIPTION SHEET F - FRAGMENT

WEu:POEPPElS CORNER-l RUN NO.: 2 PAGE130F 13

81 NO. RECOVERED: 70 PERCENT: 86 DATE: 9/20/84 GEOLOGIST; M. Camara

HYDROCARBON SHOWS . POROSITY ODOR SAMPLE fluORE SCENCE cuT DESCRIPTION

G-f-P STAIN

% ItHENSITY COLOR fluOR VISIBLE RESIOUE

G - - - - - - - - Sandstone, as at 4796 1•

-- - - - - - - - - -

G - - - - - - - - Sandstone, as at 4796 1•

Not described. SWC to be sent to Core lab for analysiS.

- - - - - - - - - -G ~:~~~ - thin Sandstone, as at 4796, but with a - - - - - strmg. yellow thin olive black siltstone parting.

gn-yel film

Not described. SWC to be sent to Core lab for analysis.

- - - - - - - - - -

I

ARCO AUSTRALIA

POEPPLES CORNER #1

ROUTINE CORE ANALYSIS

rJl'll i~1t-~ Petroleum ReservOir Engineering I J , ' fit I ·1 UI ~!.Ll -'~

Company Well Field

Sample Number

80

77

7J

66

Arco Australia Poepples Corner 11

Depth. Perm, Feet Md (Ra)

4604

4708

4779

6405

CORE LABORATORIES PcIroIIum ~r Engfneertng

Formation Core Type Location

Sidewall Core Analysis Northern Territory

CONVENTIONAL CORE ANALYSIS

* PorositI. Percent

FUe Date Analysts :

Head

Page : 1 of 3

ADCA 84-013 28/9/84 PL, RH

Summ on Water Space ' Sample Description Helium Fliuds % Pore % Pore Gas and Remarks

25.2 5.1 75.8 Tr SST: Lt bm, vf, fri sbang-sbrnd, wl srt, cl mtx, tr minor carb apk, tr dull yell res fluor.

24.8 6.3 39.3 Tr SST: Lt bm, vf. fri abang-sbrnd. wl srt, cl mtx, tr minor carb spk, tr dull yell res fluor.

24.0 0 72.7 Tr SST: Lt brn, vf. fri. sbang-sbrnd, wl art. cl mtx, sI calc. mnr carb spk.

20.9 0 66.7 Tr SST: Vb, vf, fri, sbang-sbrnd, wl art, cl mtx, mnr carb spks.

* Head space gas is the gas trapped in the container from the Sidewall sample.

These .n.Iyses, optflfOt'ls« Inte,pret.IIGnS .r. btlMd on .ervatoons .nd m.te,.al suppl,ed bv lhe c:lienllo whom •• nd 1« __ elldutiw end conl"'''1 u ... .... , ,epan "made The interpret.llons or optnoons e"",used ,epresenl the best lIJdIIemenl of Core ubot.tori ••. Inc. ,.ller,ors.nd .... i'*-lIICOIPIedt buc eLaboratotles. Inc: .• nd ,I' off,cers .nd employees, .ssu .... no ,.sponllbility end meke no _,rent\, or representatIOnS .s 10 lhe produclivitw. ptape!' OfMI'etion. or prohtableness of .nv 0", gas or other mlne,aI we" 01 send 'n c:onrnlCllOtl with whoc:h luch _I ,. used or relied upon.

Sample Number

64

60

50

49

48

45

Depth, Feet

6544.5

6729

~ 701.S'

r9i-S 71152

7089

7206

Perm, Md (Ka)

CORE LABORATORIES Petroleum ReserooIr Engineering


Porosity, Percent Summ Oil

Helium Fliuds % Pore

23.5 9.2

25.2 9.4

25.3 8.7

27.7 16.7

24.1 o

27.1 o

Water % Pore

56.7

56.6

52.9

55.6

43.6

58.9

* Head Space Gas

Tr

Tr

Tr

Tr

Tr

Tr

Page

Sample Description and Remarks

2 of 3

SST: Dk bm. vf, fri, sbang-sbrnd, wl srt, cl mtx, mnr carb spt, tr dull yell res fluor.

SST: Wh/lt bm. vf, fri, sbang-abmd, wl art, cl mtx, mnr carb apk, brt yell rea fluor.

SST: Wh/lt bm, vf, fri, sbang-sbmd, wl srt, cl mtx, mnr carb spk, brt yell rea fluor.

SST: Wh/lt bm, vf, fri, sbang-sbmd. wl art, cl mtx. mnr carb spk, brt yell res fluor.

SST: Wh, vf. fri. abangsbmd, wl art. cl mtx, mnr carb apk.

SST: Wh. vf, fri, sbangsbrnd. wl art, cl mtx, mnr carb spk.


The" analyses. optnions Of mlerpreumons ar. based on obser"allORS and maleroal supplied by the dient to whom. and 101 whose 4IJIdusj.,. and confidential u ... IhlS repa" I. made. The ,"lerptetallOns or optnlOns •• ptH* reptesenllhe bea tudgement of Core laboratorlH. Inc:. 'aH etrOf$ and omissions uc:epIed); but Core labo,alorte5. lne; and.1$ offICers and emplo'ffts. auume no responsIbility and malo. no welfant, Of' rept ... ntatlOns ., 10 Itfe .,..oductllrity. praper optttation. or profitableness of any 011. gas Of OIher m.neral well 01 sand In connectoon with wtHch such __ IS IJMd Of .... Ied upon.

CORE LABORATORIES Pelroleum Reaervoir Engineering


PorositI, Percent Sample Depth, Perm, SU1lllD Oil Water Number Feet Md (Ka) Helium Fliuds % Pore % Pore

43 7259 28.2 0 15.5

40 1395 31.6 o 65.3

36 1465.5 20.9 0.7 66.9

33 7550.5 26.2 o 79.0

25 7677 26.9 0.8 86.1

7 8173 22.0 o 88.1

5 8193 20.8 o 84.8

* Head Space Gas

0

o

o

Tr

o

Tr

o

Page 3 of 3

Sample Description and Remarks

SST: Vb, vf, fr, sbangsbrnd, wl srt, cl mtx, sI calc.

SST: Vb, vf, fr, sbangsbrnd, wl srt, cl mtx, sI calc.

SST: Dk bm, vf, fri, sbang-sbmd, wl srt, cl mtx. .or carb spk. tr dull yell res fluor.

SST: Vb, vf. fri, sbangsbmd, wl srt. cl mtx, sI calc.

SST: Lt bm, vf. fri sbang-sbrnd, wl srt, cl mtx, tr dull yell res fluor.

CLCLT: Lt gry, gm, sft. blky, calc. mnr carb spk.

SST: Lt gry, vf. sft-fri, sbang-sbmd. wl srt, cl mtx, sI calc, mnr carb spk. grdg to sltst i/p.


Thes. analyses. opolllons 01' ,nterpreuulons ef. based on obsefvetooos end m_Ill' supplied by lhe ch_ to whom. end 101' I/IIhoM e.clus.". end CIIIInlidentielllM. IhlS .epon 1$ made The .nlllrlllell'_ 01 oponoons expressed r._ the bell,uduemenl of COf.labOf.tOl' .... Inc. ,."e"OtS end orni_ excepled); buI COte l.-botatoroes. lne, and .11 offICers and emplovees .... u .... no ,e$pOR$.lHIicy end make no _fentv Of ,...,esenlllllOnl e. 10 the ptocluctivitv. prope' .,.,Mion. Of lIIollI""'ene$5 0' any 0.1. lies or CMher mlneull we" or sand In ConnectIOn wilh whICh such ,_1 .. used Of relied upon,

-_::

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....

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I l

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, .•

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... ;~

.... -IIo

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lIJ""'tJ

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: ::

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:: ... :

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.. ~.-": ·

•• i../~ .. , ..;;

Or-;.I",I,..",.~

.... ."7 ... tJO

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1;<":-I 0'-

__

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-11

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....

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• ~J"'!'o--l~ qO;-+~

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COREHEAD

SIZE

BARREL LENGTH:

TIME TO CUT

FORMATION

FROM TO

8490' 8495 1]"

PAGE: 1 of 2 Christensen C-201 AReO AUSTRALIA LTD. OATE September 18, 1984 8~" - 4" diam. core CORE DESCRIPTION SHEET 30'

CORE'

INTERVAL

1 8490' to 8500'

6 hrs WE L L. POEPPELS CORNER n RECOVERY 10' 5~" Ordovician? & Igneous Basement PERCENT 100

GEOLOGIST: M. Camara

fEET POR FLOOR. CUT STH OOOR SHOW OIP DESCRIPTION

51 711 - - - - - - - Siltstone: dark green gray, siliceous, micromicaceous,

hard, blocky, dull, very fine grain to medium grain

pyrite'crystalsdisseminated throughout though occupying

only trace amounts of the total sediment, mottled 10-20%

with irregular to spheroidal shape, very light gray

pebble size clasts of calcareous claystone whi~h contain

about 30% fine grain pel10idal and spherical chloritic clay particles, occasionally the chloritic clay is

replaced by calcite, up to 10% of the siltstone contains

fine grain to pebble size nodules of white calcite, calcite also occurs as Imm-5mm veins predominantly

parallel to fractures which trend at 350 to the core,

occasionally the thin veins (those less than Imm) are

perpendicular to the core. The degree of calcite vein-

ing increases with depth. The bottom l~" of the core

also contains about 10% coarse grain to granule size irregular shape clasts of a greenish black calcareous

claystone. No shows. Other than fracture planes

oriented about 350 up from the horizontal, the core

exhibits no bedding. The bedding, if any, is

disrupted. -~,---~- --- -

PAGE: 2 of 2 COREHEAD Christensen C-201 AReo AUSTRALIA LTD.

DATE September 18, 1984 CORE DESCRIPTION SHEET CORE' 1 SIZE 8~" 4" diam. core

BARREL LENGTH: 30' TIME TO CUT

FORMATION

fROM TO

8491'7 11 8495'8l.:l

849518~" 8500'5~'

6 hours WE L L. Ordovician? & Igneous Basement

fEET POR fLUOR. CUT STH aGOR SHOW DIP

1kH -.. 4 - - - - - 350

4'9~" - - - - - - 350

INTERVAL : 8490' to 8500' RECOVERY : 1O'5~"

PERCENT : 100 GEOLOGIST: M. Camara

DESCRIPTION ,

I

limestone: lime mudstone, light gray, hard, no porosity

upper contact is flat, smooth and at a 35° angle up from

the horizontal. The lower contact is flat and irre9ula~ and contains less than 10% coarse grained clasts from

the underlying diorite.

Diorite: grayish black, though not common, orthoclase

(K feldspar) crystals increase in size with depth from very fine grained to pebble to a depth of 8500'2" where

they become fine grained again. Very fine grained i'

acicular crystals of horneblende throughout. Minor

to trace amounts of calcite veining perpendicular to

the core, and there is a 5mm thick calcite vein at

8500'2" occupying a fracture at 350, The formation 1s

very hard and dense.

.--- ---

ARCO AUSTRALIA LIMITED

POEPPELS CORNER #1

INTERVAL CORED: 8490'0" to 8500'011 INTERVAL RECOVERED: 8490'0 11 to 8500'5~1I (l04.6%)

DATE: 18th September, 1984

LITHOLOGY:

LOGGED BY: D. Horner / D. New

8490'0" to 849518~" METASEDIMENTS/VOLCANICS:

White to light gray to light green gray, mottled, very hard, massive, angular to .rounded fine to pebble sized quartz, dolomite and calcite inclusions and veins in a tight light to medium gray siliceous to cryptocrystalline, occasionally acicular groundmass, common pyrite nodules, trace chloritic nodules, common pebble to cobble sized amygdoidal fragments with fine to coarse vesicles filled with quartz, rarely with calcite and dolomite, common high angle fractures commonly veined by calcite.

8495'8\" to 8500'5!a" TRACHYTE:

Very dark gray to black, melanocratic, very hard, massive, hyaline to fine crystals of hornblende, augite" pink orthoclase, plagioclase, common feldspar phenocrysts up to granule in size (size increases with depth), minor high angle fractures infilled by ~~lcite with minor chlorite. The contact with the metasediments/ volcanics is sharp with an infused contact (angls of contact in core = 350 , hole deviation angle = 14 ).

CORE LABORATORIES, INC. L....::::::..-...:!:...6.~~_-.J Petroleum ReJen'oi, Engi1len1ng

:)MPANY ARea .AUS TRAWA .. FIELD fILE

WEll PQEPPI-ES ~OR"Jf;R NQ DATE 2~tb SEPL J9~

_ )CATlON 1iQBT!-iERN. __ IEBRITQB ...... Y ___ _ ELEV.

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\.Iht'1 "I<f'ltrf.' _.,h vi ~ •• ,(, , C('\'1#.f\', t.lln .."t" .-.".( t, :.,.~h , .. po''* ;~ u~"fI ot Iltued ,,~n

VERTICAL SCALE 0.6" = 10' (1 :200)

CORE-GAMMA SURFACE lOG COREGRAPH (PATENl AI'PUI:.U rOR.

GAMMA RAY RAOIAlION INCREAC,r:c

PERMEABilITY

---_.- -~

~-.. - ..• -. ~ .-, .. - .-

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POROSITY PERCENT

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TOTAL WATER PI:FcCENT lorAL VlwArER

80 60 20 L... ___ -1.....-_ -l-~---

Oil SATURATION _ ..... __ . PrRCENTPORESPACE

20 40 60 80

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l-~-~--:~~-~ -~=-=;;; .. __ " _ --------+_ .... ___ - -_" ._--t.

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f --.=-.--.~ ... ~- ... ..--~- .. -.-- . -... - t ...... ,.- ... - ,f· .j.-- .. ----t- --.. 8500! . 1--- ------- . ~

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APPENDIX 6

.. LITHOLOGIC INTERVAL DESCRIPTIONS

NOTE:

DESCRIPTION OF CUTTINGS SAMPLES

Words having a quantitative connotation were used

in describing sedimentary packages involving a

repetitive series of lithologies. These words and

their significance were:

1. Alternating - two main rock types, each

comprising between 60% and 40% of

the series

2. Interbedded - between 40% and 20%

3. Minor - between 20% and 10%

4. Trace - under 10%

Ground Level - 60' - No Samples Taken

(Ground Level - 18.2m)

60' - 360'

(18.2m - 109.7m)

Clay with trace thin stringers

of Sand.

Clay:

medium rusty brown grading to light

brown with depth, ferruginous,

slightly calcareous to calcareous,

soft, dull. No shows.

Sand:

clear to milky, quartz, feruginous,

traces of very fine grained flecks

of biotite, gypsum flakes occur in

360' - '510'

(109.7m - lSS.4m)

510' - 630'

(lSS.4m - 192.0m)

trace to heavy traces, minor quartz

grains poorly bound by calcareous

cement, fine to meduim grained,

well rounded, high sphericity, well

sorted, good intergranular

porosity. No shows.

Alternating beds of Clay.

Clay:

light brown, white, light olive

gray, traces of iron staining at

depth, light brown and olive gray

clays are slightly calcareous,

white clays are calcareous, all

clays are soft, dull, white clays

are chaulky, iron stained clays at

depth have trace silica granules,

hard, with leached (pitted)

surfaces (stringers of silcrete).

No shows.

Sandy Silt

Silt:

light yellowish brown to light gray

with depth, siliceous to slightly

calcareous, soft to dispersive,

dull, with sand, clear to milky,

quartz, traces of limonite cement,

poorly cemented, medium to fine

grained, well rounded, high

sphericity, well sorted. No shows.

630' - 690'

(192.0m - 210.3m)

white, light to dark gray,

occasionally yellow and black,

slightly calcareous to siliceous,

soft, dull, with traces of

calcareous nodules. No shows.

690' - 840' Alternating beds of argillaceous .. (210.3m - 256.0m) Sandstone and Mudstone

Sandstone:

medium dark gray to dark olive

gray, argillaceous, chloritic,

white-clear quartz grains in a silt

and clay matrix, soft becoming firm

with depth, very fine grained to

medium grained, rounded, high

sphericity, moderately to poorly

sorted, poor porosity. No shows.

Mudstone:

medium gray to medium dark gray,

840' - 1440'

(2S6.0m"- 438.9m)

1440' - 2250'

(438.9m - 68S.8m)

soft, sticky, dull. No shows.

Alternating Claystone and Mudstone

with trace Siltstone and Sandstone

Claystone:

light to dark gray, calcareous to

siliceous, soft, dull. No ~hows.

Mudstone:

light to dark gray, siliceous,

firm, dull. No shows.

Siltstone:

light yellowish brown, siliceous,

soft to hard, dull. No shows.

Sandstone:

light to medium gray, with white to

clear quartz grains, occasional

garnet, soft to medium hard, fine

to coarse grained, subrounded to

well rounded, high sphericity,

moderately sorted to well sorted,

poor porosity. No shows.

Mudstone grading with depth to

Siltstone with trace to minor

Sandstone and trace streaks of

Limestone.

Mudstone:

light to dark gray, siliceous, soft

to firm, becoming firmer with

depth, dull. No shows.

Siltstone:

olive gray, greenish gray to light

olive gray, brownish black, dark

gray, soft to very firm, becoming

firmer with depth, siliceous,

blocky to subfissile, becoming

more fissile with depth, dull,

brownish black siltstones contain

dispersed traces of black organic

material. No shows.

Sandstone:

greenish gray to light olive gray,

white and clear quartz grains in a

calcite and clay matrix, calcareous

cement, firm to hard, very fine

grained, rounded, high sphericity,

well sorted, poor porosity. No

shows.

Limestone:

lime mudstone, yellowish gray,

hard, poor porosity. No shows.

22S0' - 2670'

(68S.8m - 8l3.8m)

Siltstone with interbedded

Sandstone and with traces of

Mudstone and Lignite.

Siltstone:

light olive gray, medium gray, and

dark gray, siliceous to calcareous,

very soft to firm, blocky to

subfissile, light olive gray

siltstones are sticky, all

siltstones are dull. No shows.

Sandstone:

greenish gray, lithic fragments and

quartz, siliceous to calcareous,

siliceous sandstones are firm and

friable, calcareous sandstones are

hard and blocky, fine to medium

size grains in both sandstones

are subrounded to rounded, mostly

high sphericity, moderately to

poorly sorted, poor porosity. No

shows.

Mudstone:

light gray, siliceous, very soft,

sticky, blocky, dull. No shows.

Lignite:

black, firm, tabular, vitreous. No

shows.

2670' - 3105'

(813.8m - 946.4m)

3105' - 3120'

(946.4m - 950.9m)

Mudstone with trace Siltstone,

Sandstone and Limestone

Mudstone:

dark gray, siliceous, sands at the

top becoming more clayey with

depth, very soft to firm, blocky to

subfissile, moderately sticky,

dull. No shows.

Siltstone:

dark gray, siliceous, very clean,

firm, blocky, dull. No shows.

Sandstone:

greenish gray, quartz and lithic

fragments, calcareous cem~nt, soft

to firm, very fine grained to fine

grained, subrounded to rounded,

high sphericity, moderately well


Sandstone

Sandstone:


fragments, calcareous cement, firm

to hard, friable, very fine grained

to fine grained, subrounded to

rounded, high sphericity,

3120' - 3680'

(950.9m - l121.6m)

3680' - 3850'

(ll21.6m - ll73.4m)

moderately well sorted, poor

porosity. No shows.

Mudstone with traces of Sandstone

and Limestone

Mudstone:

dark gray to grayish black with

depth, siliceous, clayey, soft to

firm, blocky to subfissile, dull.

No shows.

Sandstone:


fragments, calcareous cement, firm

to hard, friable, very fine grained

to fine grained, subrounded to

rounded, high sphericity,

moderately well sorted, poor

porosity. No shows.

Limestone:

lime mudstone, yellowish gray to

white, hard, blocky, poor porosity.

No shows.

Mudstone with minor fossil

Inoceramus Shell Fragments

Mudstone:

dark gray to grayish black with

depth, siliceous to highly

3850' - 4485'

(1173.4m - 1367m)

calcareous, clayey, soft to firm,

becoming micromicaceous with depth,

blocky to subfissile, dull. No

shows.

Shell Fragments:

clear to white to translucent

yellow, firm to hard, prismatic. No

shows.

Mudstones grading with depth to

Siltstone with trace Sandstone

sandy Siltstone, and Limestone

Mudstone:

medium olive brown, medium gray to

grayish black, mediumi olive brown

mudstones are calcareous, hard,

blocky, dull, medium gray to

grayish black mudstones are

siliceous, micromicaceous, hard,

blocky to subfissile, dull. No

shows in both mudstones.

Siltstone:

medium to grayish black,

occasionally sandy, siliceous, firm

to hard, micromicaceous, tabular to

blocky, dull. No shows.

4605' - 4710'

(1403.5m - 1435.5m)

4710' - 4755'

(1435.5m - 1449.3m)

moderately sorted, poor porosity.

No shows.

Siltstone:

light to dark gray, siliceous,

traces of glauconite and pyrite,

firm to hard, blocky, dull. No

shows.

Sandstone

Sandstone:

light gray, pure quartz, clean,

siliceous cement with some

calcareous cement, hard, friable,

medium grained grading with depth

to fine grained, subrounded to well

rounded with occasional angular

fractured grain, predominently high

sphericity, very well sorted, poor

to good porosity. No shows.

Argillaceous Sandstone with minor

Siltstone

Sandstone:

light gray, quartz, clay matrix,

siliceous cement, hard, friable,

fine to medium grained, subangular

4485 1 - 4605 1

(1367m - 1403.5m)

Sandstone:

light to medium gray, quartz grains

and lithic fragments, calcareous

cement, firm to hard, friable, very

fine grained to fine grained,

subangular to subrounded, poor to

moderately well sorted, low to high

sphericity, poor porosity. No

shows.

Sandy Siltstone:

medium gray, calcareous, hard,

blocky, sand grains are quartz and

lithic fragments dull. No shows.

Limestone:

lime mudstone to wackestone, olive

gray to olive black, hard,

wackestones are silty limestones,


Sandstone alternating with Siltstone

Sandstone:

light gray to white, clear quartz

with siliceous cement and clay

matrix, hard to very hard, medium

to coarse grained, subrounded to

rounded with occasional well

rounded very coarse quartz grains,

4755' - 5430'

(1449.3m - 1655m)

to subrounded, high sphericity,

poorly sorted, poor to fair

porosity. No shows.

Siltstone:

grayish black, siliceous,

micromicaceous, hard, dull. No

shows.

Very thickly bedded Sandstone

Sandstone:

very light gray, quartz, traces of

iron oxide staining, traces of

pyrite, traces of black organic

material present above 5030'

(1533.1m), hard to very hard,

friable, medium to fine grained,

predominantly fine grained,

subangular to well rounded,

predominantly subrounded with trace

well rounded coarse grained quartz,

high sphericity, well sorted to

very well sorted, fair to poor

inter granular porosity, trace beds

with fair to good intergranular

porosity. No shows.

5430' - 5660'

(1655m - 1725.1m)

5660' - 6240'

(1725.1m - 1901.9m)

Sandstone with minor Siltstone and

trace Coal.

Sandstone:

very light gray - light gray,

quartz, traces of pyrite and pink

garnet, hard, medium to fine

grained, subangular to rounded,

well sorted, poor to good porosity.

No shows.

Siltstone:

light brown to dark brown to dark

grayish black, siliceous, soft to

firm blocky to fissile,

subresinous. No shows.

Coal:

black, blocky to subconcoidal

fracture, subvitreous. Moderately

bright blue-white fluorescent crush

cut. Bright light amber to dark

straw residual ring and residue

fluorescence.

Sandstone with traces of Siltstone

and Coal.

Sandstone:


pink garnet throughout, occasional

traces of lithic fragments,

siliceous cement, no matrix, hard,

friable,' medium to fine grained,

predominantly medium grained,

subangular to well rounded,

predominantly subrounded to

rounded, predominantly high

sphericity, poor porosity. No

shows.

Siltstone:

light. brownish gray to light gray

to medium gray, siliceous,

micromicaceous, firm to hard,

laminated, subresinous. No shows.

Coal:


fracture, subvitreous to vitreous.

Slow streaming moderately bright

blue-white to white fluorescent

crush cut. Bright light amber

residual ring and residue

fluorescence.

6240' - 6300'

(1901.9m - 1920.1m)

6300' - 6490'

(1920.1m - 1978m)

6490' - 6530'

(1978m - 1990.2m)

Sandstone with trace Siltstone and

Coal.

Sandstone:

as above but medium to very coarse

grained. No shows.

Siltstone:

as above but firm to very hard. No

shows.

Coal:

as above with shows as above.

Sandstone

Sandstone:


pink garnets throughout, occasional

traces of lithic fragments,

siliceous cement, hard to very

hard, becoming less friable as

degree of cementation increases

with depth, medium to coarse

grained, predominantly medium

grained, subangular to subrounded,

predominantly high sphericity, poor

porosity. No shows.

Sandstone with traces of Siltstone

and Coal.

6530' - 6560'

(1990.2m - 1999.4m)

Sandstone:

as above. No shows.

Siltstone:

medium brown gray, siliceous, firm,

blocky to tabular, dull. No shows.

Coal:


fracture, vitreous. No shows.

Alternating Sandstones with minor

Coals and trace Siltstone.

Sandstone:

as above. No shows.

Sandstone:

medium brownish gray, quartz,

siliceous cement, clay matrix, hard

to very hard, fine to medium

grained, moderately sorted,

subangular, high to low sphericity,


Coal:


fracture, vitreous. Slow streaming

white natural cut fluorescence.

Strong pale yellow residue

fluorescence.

6560' - 6715'

(1999.4m - 2046.6m) .

Siltstone:

as above but flecked with black

carbonaceous material. Slow

streaming white natural cut

fluorescence. Strong pale yellow

residue fluroescence.

Interbedded Sandstone and Siltstone

Sandstone:

very light gray, quartz, clean,

siliceous cement, occasional pink

garnets, hard, friable, fine to

coarse grained, predominantly fine

to medium grained, subangular to

subrounded, predominantly high

sphericity, poorly to very well


Siltstone:

medium brownish gray, siliceous,

firm, blocky to subfissile,

moderately flecked with black

organic material, dull. Slow


fluorescence. Strong pale yellow

residue fluorescence.

6715' - 6970'

(2046.6m - 2124.4m)

Interbedded Sandstone, Siltstone,

Shale, and minor Coal.

Sandstone:

as above but with occasional very

coarse quartz grains.

Siltstone:

light to medium brownish gray,

siliceous, soft to firm, blocky to

subfissile, clean to moderately

flecked with black organic

material, dull. Slow streaming

white natural cut fluorescence,

strong pale yellow residue

fluorescence.

Shale:

black, carbonaceous, siliceous,

coaly, firm, fissile, shiny.

Instantaneous bright blue-white

streaming natural cut fluorescence,

bright yellow residue fluorescence.

Coal:


fracture, vitreous. Slow streaming

white natural cut fluorescence,

strong pale yellow residue.

6970' - 7060'

(2124.4m - 2ISI.8m)

Alternating Sandstones

and Siltstones with trace Shale and

Sandstones with minor Shale and

trace Coal.

Sandstone:

yellowish gray to light olive gray

and light yellowish brown to light

brown, quartz, siliceous cement,·

firm to hard, predominantly" hard,

friable, very fine grained to

medium grained, traces of coarse

grains, subangular to rounded,

predominantly high sphericity,

poorly sorted to well sorted,

predominantly moderately well

sorted, poor to fair intergranular

porosity. Trace grains exhibit dull

yellow residual fluorescence after

crushing.

Sandstone:

very light gray, very clean,

siliceous cement, hard, friable,

medium to coarse grained,

predominantly medium grained,

subangular to rounded, generally

high sphericity, moderately well to

very well sorted, poor

inter granular porosity. No shows.

Siltstone:

medium to dark brownish gray to

brownish black, siliceous,

micromicaceous, firm to hard and

brittle, subfissile to fissile,

shaly in parts, shiny. No natural

fluorescence to dull p~le uniform

orange natural fluorescence. Very

slow milky white crush cut to fast

streaming moderately bright blue


Range of residual fluorescence is

pale yellow residual ring to bright

white ring and residue.

Siltstone:

light gray to medium brownish gray,

siliceous, soft to firm, blocky to

subfissile, clean to moderately

flecked with black organic

material, dull. Occasional slow


fluorescence with pale yellow


Shale:

black, siliceous, carbonaceous,

coaly.micromicaceous, firm to hard, (

fissile, shiny. Slow blue-white to

pale yellow natural cut and bright

yellow residue fluorescence.

Coal:

black, bituminous, blocky to

subconcoidal fracture, firm to

hard, vitreous. No shows.

7060' - 7360' Sandstones with trace Shale and

(2151.8m - 2243.2m) Coal.

Sandstone:

very light gray, quartz, very

clean, siliceous cement, hard,

friable, medium to coarse grained,

trace occurrences becoming

conglomeratic, predominantly medium


generally high sphericity,

moderately well to very well

sorted, conglomerates are poorly


Sandstone:

yellowish gray to light olive gray,

7360' - 7470'

{2243.2m - 2276.7m~

quartz, siliceous cmt., firm to hard,

very fine grained to fine grained,

subangular to subrounded, high

sphericity, well sorted, poor to

fair intergranular porosity. No

shows to trace faint dull residue

fluorescence.

Coal:

as above. No natural cut to slow

blue-white natural cut with faint

pale yellow residue.

Sandstones with minor Siltstones

and Shale and trace Coal.

Sandstone:


as above. No shows to faint dull

yellow residue fluorescence.

Sandstone:

very light gray, as above but with

no conglomeratic beds. No shows.

Shale:

as above. No natural fluorescence

to trace orang~ natural

fluorescence. No natural cut

fluorescence to moderately fast

7470' - 7610'

(2276.7m - 2319.4m)

streaming pale yellow natural cut

fluorescence. Grains with no

natural cut display a slow milky

pale yellow crust cut. Range of

residual fluorescence is strong

pale yellow residue to faint pale

yellow residual ring fluorescence.

Coal:

as above. No shows to trace

pinpoint bright green natural

fluorescence. None to instantaneous

to moderately fast streaming blue

white natural cut. None to

moderateiy bright yellow residue

fluorescence.

Interbedded Sandstones, Siltstone

and Shale with minor Coal.

Sandstone:


quartz, siliceous cement, hard,

friable, very fine grained to fine


high sphericity, moderately sorted

to well sorted, poor porosity. No

staining, no natural fluorescence

to trace percentage of grains with

trace amount of spotty dull orange

fluorescence, no natural cut to

slow cloudy greenish white

fluorescent cut. No crush cut to

slow cloudy pale white to pale

yellow fluorescent crush cut. No

residual to dull pale yellow spotty

residue to moderately bright yellow

fluorescent residue.

Sandstone:

very light gray, quartz, very

clean, siliceous cement, micaceous

(muscovite) in parts, hard,

friable, fine grained, subrounded

to rounded, generally high

sphericity, moderately well to very

well sorted, poor porosity. No

shows.

Siltstone:

medium to dark brownish gray,

siliceous, firm, blocky to

subfissile, moderately to heavily

flecked with organic material, dull

to subvitreous. No staining, no

natural fluorescence, no natural

cut fluorescence to slow cloudy

greenish yellow cut. No crush cut

fluorescence to slow milky pale

yellow, range of residual

fluorescence is faint pale yellow

ring to moderately bright yellow

residue.

Shale:

medium to dark brownish gra~ to

bronwish black, siliceous,

carbonaceous, micromicaceous,

heavily flecked with black organic

material, soft to hard,

predominantly firm to hard,

subfissile to fissile, predominantly

fissi~~, shiny. No staining, no

natural fluorescence to trace

number of grains with 20% spotty

dull orange natural fluorescence.

No natural cut fluorescence to slow

pale yellow streaming cut. No crush

cut fluorescence to slow milky pale

yellow cut fluorescence. No

residual to dull yellow residue

fluorescence.

Coal:

black, bituminous, blocky to

splintery, hard, brittle, vitreous.

7610' - 7672'

(2319.4m - 2338.3m)

No natural fluorescence to 100%

uniform dull to bright orange

fluorescence. Slow streaming pale

yellow cut to fast streaming bright

yellow, yellow-green, and bluish


Strong bright yellow ring and


Siltstone coarsening with depth to

an argil1aceous Sandstone.

Siltstone:

brownish gray to pale brown,

siliceous, clayey, micromicaceous,

hard, blocky to subfissile,

sucrosic. No shows.

Sandstone:

light olive gray, quartz, si1ty and

clayey, argillaceous, siliceous

cement with clay matrix, soft to

hard, very fine grained to coarse

grained, subrounded to rounded,

high sphericity, moderately to


shows.

7672' - 7700'

(2338.3m - 2346.8m)

7700 1 - 7840 1

(2346.8m - 2389.5m)

Red Beds: Sandstone with minor

Siltstone.

Sandstone:

light olive gray, quartz, silty and

clayey (argillaceous), siliceous

cement matrix material is moderate

red clay, firm to hard, very fine

grained to very coarse grained,

subrounded to rounded, high

sphericity, moderately well sorted

to poorly sorted, predominantly


shows.

Siltstone:

moderate red, siliceous, clayey,

firm to hard, predominantly hard,

blocky, slightly micromiccaceous,

ferruginous, slightly sucrosic to

dull. No shows.

Variegated Siltstones with

interbedded Sandstone.

Siltstone:

dusky green to pale green, grayish

purple, moderate reddish brown,

dark gray, predominantly shades of

green, siliceous, micromicaceous,

7840' - 7940'

(2389.5m - 2420m)

soft to moderately hard,

predominantly blocky, occasionally

tabular to subfissile, dull and

shiny to greasy appearance. No

shows.

Sandstone:

light olive gray to very light

gray, quartz, up to 30% lithic

fragments in places, lithics ar~

igneous and metamorphic fragments

(phyllites to 1 phyllitic shales),

degree' of siliceous cementation

increases with depth, firm to very

hard with depth, very fine grained

to very coarse grained, subrounded

to rounded, high sphericity,

moderately to poorly sorted, poor

porosity. No shows.

Calcareous Siltstone with

interbedded Shale and Silts tone and

trace Sandstone.

Siltstone:

pale green to very pale green,

mottled with white calcareous clay,

calcareous, micromicaceous, firm,

7940' - 8495~'

(2420m - 2589.3m)

blocky to tabular, shiny to dull.

No shows.

Shale:

grayish black to black, siliceous,

micromicaceous, pyritic in parts,

firm to very hard, subfissile to

fissile, moderately shiny. No

shows.

SiltstQne:

olive black to greenish black,

siliceous, hard to very hard,

blocky, dull. No shows.

Sandstone:

light olive gray to very light

gray, quartz, trace lithics,

siliceous and calcareous cements,

predominantly siliceous cement,

very hard, medium to very coarse

grained, subrounded, high

sphericity, moderately sorted, poor

porosity. No shows.

Calcareous Siltstone.

Siltstone:

predominantly pale green to very

pale green, occasionally greenish

gray, dark greenish gray, dark

gray, and white, calcareous to very

calcareous, clayey, firm to very

hard, blocky, shiny to dull, common

inclusions (mottling) of medium to

pebble size c~ts of greenish

white to white calcareous clay

nodules, occasional occurrences of ,

very fine grained pelloidal to

spherical inclusions of chloritic

clay, trace occurrences of very

well rounded medium grained quartz,

trace occurrences of trace amounts

of fine grained clusters of pyrite.

8495~' - 8500'(TD) Igneous Basement - Diorite.

(2589.3m - 2590.7m) Igneous Basement:

Diorite, grayish black, hard,

dense, minor to trace amounts of

calcite veining.

APPENDIX 7

WATER ANALYSIS

AMDEL, October, 1984

al'WIdel

service report

THE AUSTRALIAN MINERAL DEVELOPMENT LABORATORIES. FLEMINGTON STREET. FREWVILLE. SOUTH AUSTRALIA 5063

.. e The Australian

Mineral Development Laboratories

Flemington Street. Frewville. South Australia 5063

Phone Adelaide 79 1662 Telex AA 82520

Please address all correspondence to

P.C. Box 114 Eastwood SA 5063

In reply quote:

1"

Head Office: Flemington Street. Frewville

South Australia 5063. Telephone (08) 79 1662 Telex: Amdel AAS2520

Pilot Plant: Osman Place

Thebarton.SA Telephone (08) 43 8053

Branch Laboratories: Melbourne. Vic.

Telephone (03) 645 3093 Perth. W.A.

Telephone (09) 325 7311 Townsville

Queensland 4814 Telephone (077) 75 1377

NATA CERTIFICATE

Mr. D.E. Pederson, Arco Australia Ltd., 130 Philip Street, SYDNEY N.S.W. 2000

YOUR REFERENCE:

REPORT COMPRISING:

DATE RECEIVED:

ij

, ~ c;..y4.. Ov'1 ~ L.A _ (n,,\J4.?

<:h, .. ,,,.r-\.

3/0/0 - AC 1419/85

15 November 1984

REPORT AC 1419/85

Application dated 20 September 1984

Cover Sheet Page 1 Pages W1 - W6

26 September 1984

D. Patterson Chief Chemist Analytical Chemistry Division

SAMPLE !o1ARK

4708 1 gal.

4709 6 gal.

6770 1 gal.

6729 6 gal,.

7041.5 6 gal.

7052 1 gal.

Method:

ANALYSIS

T.D.S. @ 1800 C

6725

11830

58230

57150

52860

58250

W4/3

S.G.

1.005

1.009

1.042

1.038

1.042

1.042

z

Report AC 1419/85 Page 1

NOTE: We have been unable to determine H2 S on these samples as they were not preserved. The test must be done within a few hours of collection of unpreserved material.

@

WATER ANALYSIS REPORT JOB NO. 1419/85 METHOD W2/1 PAGE W 1

SAMPLE ID. 4708' 1 GALLON CHAMBER ==============::::::======::=====::====================================~=:=:

CHEMICAL COMPOSITION

CATIONS

CALCIUM MAGNESIUM SODIUM POTASSIUM

ANIONS

(CA) (MG) (NA) (K)

HYDROXIDE (OH) CARBONATE (C03) BICARBONATE (HC03) SULPHATE (S04)

CHLORIDE (CL)

NITRATE (N03 )

MG/L

29.0 2.00 2420 13.0

496 890

2650

200

I I I

ME/L I

1.45 · 0.165

105 0.332

I I I I 1 I I I I I 1 I

8.13 1 18.5 1

1 74.8 I

1 1

3.23 I I I I 1 I 1 I I I

--------------------------------------1 REACTION - PH CONDUCTIVITY (E.C.) MICRO-S/CM AT 25 C RESISTIVITY OHM/M @ 25C

I 7.0 I

I 9000 I 1.11 I

I , I

DERIVED DATA

MG/L

TOTAL DISSOLVED SOLIDS A. BASED ON E.C. 5410 B. CALCUL~TED (HC03=C03) 645~

TOTAL HARDNESS 80.6 C~RBON~TE HARDNESS 80.6 NON-C~RBONATE H~RDNESS TOTAL ~LKALINITY 407 (EACH AS CAC03)

TOTALS AND BALANCE

CATIONS (ME/L) 107 DIFF= 2.51 ANIONS (ME/L) 1~5 SUM = 212

DIFF*100./SUM = 1.18%

SODIUM / TOTAL CATION RATIO 98.2%

REMARKS

NOTE: MG/L = MILLIGR~MS PER LITRE ~E/L = MILLIEQUIVS. PER LITRE

===================================:==============;=========================

NAME- MR. D. PEDERSON ADDRESS- ARCO AUSTRALIA

130 PHILIP STREET SYDNEY 2000

DATE COLLECTED DATE RECEIVED COLLECTED BY

@


SAMPLE ID. 4708 1 6 GALLON CHAMBER a==================;=============================================::=:=:=====


CATIONS

CALCIUM' MAGNESIUM SODIUM POTASSIUM

ANIONS

(CA) (MG) (NA) (K)


CHLORIDE (CL)

NITRATE (N03 )

MG/L

42.0 3.30 4130 86.0

534 1610

4820

620

ME/L

2.10 0.271

180 2.20

8.76 33.5

136

10.0


6.9

14600 0.685

DERIVED DATA

TOTAL DISSOLVED SOLIDS A. BASED ON E.C. B. CALCULATED (HC03=C03)

TOTAL HARDNESS CARBONATE HARDNESS NON-CARBONATE HARDNESS TOTAL ALKALINITY (EACH AS CAC03)

MG/L

9240 1160'"

118 118

438

TOTALS ~ND BALANCE

CATIONS (ME/L) 184 OIFF= 4.13 ANIONS (ME/L) 188 SUM = 373

DIFF*100./SUM = 1.11%

SODIUM I TOTAL CATION RATIO 97.5%

REMARKS

NOTE: MG/L = MILLIGRAMS PER LITRE ME/L = MILLIEQUIVS. PER LITRE

==============================;==============;==============================




@


SAMPLE ID. 6770' 1 GALLON CHAMBER ===========:;=:=============================================================

NITRATE (N03) 520 8.39 I I I I I I I , I I


I 6.7 I

I 56000 I 0.179 I

I I I

CATIONS (ME/L) 885 DIFF= 18.6 ANIONS (ME/L) 866 SUM = 1750

DIFF*100./SUM = 1.07%

SODIUM / TOTAL CATION RATIO

REMARKS

98.4%

NOTE: MG/L = MILLIGRAMS PER LITRE MEIL = MILLIEQUIVS. PER LITRE

============================================================================ NAME- MR. D. PEDERSON ADDRESS- ARCO AUSTRALIA

130 PHI LIP STREET SYDNEY 2000


@

WATER AN~LYSIS REPORT JOB NO. 1419/85 METHOD W2/1 PAGE W 4

S~MPLE ID. 6729' 6 GALLON CHAMBER ===================================================================:========

I I I I I I 1 I 1


1 6.4 I

I 53000 1 0.189 1

I I I

SODIUM / TOTAL CATION RATIO

REMARKS

98.2%


=========================================================;==================




@


SA~PLE ID. 7041.5' 6 GALLON CHAMBER =====================================:=======:==============================


CATIONS

CALCIUM MAGNESIU~ SODIUM POTASSIUM

ANIONS

(CA) (MG) (NA) (K)


CHLORIDE (CL)

NITR.~TE (N03 )

MG/L

2613 1513

1960~

93.13

367 8320

890

REACTION - PH CONDUCTIVITY (E.C.) MICRO-S/CM AT 25 C RESISTIVITY OHM/M @ 25C

MEIL

13.13' 12.3

853 2.38

6.01 173

690

14.4

6.3

56000 0.179

DERIVED DATA


To'rAL HARDNESS CARBONATE HARDNESS NON-CARBONATE HARDNESS TOTAL ALKALINITY (EACH AS CAC03)

MG/L

47300 53900

12710 3101 966 3101

TOTALS AND BALANCE

CATIONS (ME/L) 880DIFF= 2.91 ANIONS (ME/L) 883 SUM = 1760

DIFF*10~./SUM = 0.165%

SODIUM I TOTAL CATION RATIO 96.9%

REMARKS

NOTE: MG/L = MILLIGRAMS PER LITRE MEIL = MILLIEQUIVS. PER LITRE

============================================================================




@


SAMPLE ID. 7~52' 1 GALLON CHAMBER ============:==============================;================================


CATIONS

CALCIUM MAGNESIUM SODIUM POTASSIUM

ANIONS

(CA) (MG) (NA) (K)

HYDROXIDE (OH) CARBONATE (C03) BICARBONATE (HC03) SULPH"TE (S04)

CHLORIDE -(CL)

NITR.a.TE (N03 )

MG/L

21~

59.0 210~0

110

345 8850

263~"1l

REACTION - PH CONDUCTIVITY (E.C.) MICRO-S/CM AT 25 C RESISTIVITY OHM/M @ 25C

ME/L

10.5 4.85

914 2.81

5.66 184

742

16.1

6.4

58000 0.172

DERIVED DATA


TOTAL HARDNESS CARBONATE HARDNESS NON-CARBONATE HARDNESS TOTAL ALKALINITY (EACH AS CAC03)

MG/L

49600 57700

767 767

283

TOTALS ANn BAL"NCE -

CATIONS(~E/L} 932DIFF= 16.6 ANIONS (ME/L) 948 SUI'¥! = 188V"

DIFF*1~0./SUM = 0.883%

SODIUM I TOTAL CATION RATIO

REMARKS

98.1%


============================================================================


130 PHI LIP STREET SYDNEY 2000


'. 1 ,

• The Australian (§J [J[]U @] ~ D Mineral Oevelopm~nt 0 0

Laboratones

Flemington Street. Frewville, South Australia 5063

Phone Adelaide (08) 79 1662 Telex AA82520

Please address all correspondence to

p.a. Box 114 Eastwood SA 5063

In reply quote:

22 October 1984

F3/0/0 F6058/85

ARCO Australia, 130 Philip Street, SYDNEY NSW 2000

Attention: David Pedersen

REPORT F6058/85

CLIENT REFERENCE:

TITLE:

MATERIAL:

LOCALITY:

DATE RECEIVED:

WORK REQUIRED:

Investigation and Report by:

Transmittal Sheet

Preliminary results of water analysis, Poeppel 's Corner-I, Eromanga/Simpson Desert Basin.

Water

POEPPEL'S CORNER

25 September 1984

Water analysis

Analytical Chemistry Division

Head Office: Chief - Fuels Section: Dr Brian G. Steveson Flemington Street, Frewville

South Australia 5063 Telephone (08) 791662 Telex: Amdel AA82520

Pilot Plant: Osman Place

Thebarton. SA Telephone (08) 43 5733 Telex: Amdel AA82725

Branch Laboratories: Melbourne. Vic.

Telephone (03) 645 3093

Perth. WA Telephone (09) 3257311

Telex: Amdel AA94893 Sydney, N.S.W.

Telephone (02) 439 7735 Telex: Amdel AA20053

Townsville Queensland 4814

Telephone (077) 75 1377

for Dr William G. Spencer Manager, Mineral & Materials Sciences Division

cah

Sample ~~m pH TDS Conductivity Resistivity Ca Mg Na K Fe Cl HC0 3 SO .. Salinity (Calc.) ms/cm ohm/m

4708' 29 2.0 2420 13 <0.03 2660 496 890 6510 7.0 5430 9000 1.11 I-gallon

4708' 42 3.3 4130 86 3.5 4820 530 1610 11225 6.9 9240 146000 0.68 6-gallon

6770' 190 37 20000 78 0.4 24000 360 8360 53025 6.7 47330 56000 0.18 I-gallon

6729' 240 11 17800 81 <0.03 23300 230 7320 48982 6.4 43980 53000 0.19 6-gallon

7041. 5' 260 150 19600 93 5.2 24500 370 8320 53298 6.3 47330 56000 0.18 6-gallon

7052' I-gallon 210 59 20500 110 4.8 26300 350 8850· 56384 6.4 49620 58000 0.17

Preliminary results - subject to change when doing a Cation and Anion Balance.

· ,

LINEAR STIFF DIAGRAMS

CLIENT: ARC a AUSTRALIA WELL NAME: POEPPEL'S CORNER -1

SAMPLE: 4708 Ft. - 1 gallon

100 0 100 300

Ca

Mg

SALINITY= 6510 ppm

SAMPLE: 4708 Ft. - 6 gallon 300 200 100 100 200 300

Na,Kx

SALINITY= 11225 ppm

CLIENT: ARCO AUSTRALIA WELL NAME: POEPPEL1S CORNER -1


300 200 100 o 100 200 300

SALINITY= 53025 ppm

300

Ca

Mg

Fex10

SALINITY= 48982 ppm

CLIENT: ARCO AUSTRALIA WELL NAME: POEPPEL1S CORNER -1

7041.5 Ft - 6 gallon 200

-2 . Na,K x10

Ca

Mg

SALINITY= 53298 ppm

SAMPI,£:'''7052 Ft. - 1 gallon 300

-2 Na,K x10

Ca

Mg

Fex10

SALINITY= 56384 ppm

LOGARITHMIC STIFF DIAGRAMS

1000

Na. Kx10

Ca

Mg

Fe."

1000

Na. K x10

Ca

Mg

FaxtO '--


100 10

/ ~ ~

SAMPLE: 4708 Ft. - 6 gallon 100 10

~ ~

~

/

1'-000..

~ ~V"

t 10 "

,tOO

'" ~ ~

~

10 ,tOO

, \

/ . ~~

~-- ... ,

I

1000 ...

Cll 102

He O:J x 1.'

so x 102

tl"-B ..

t008

Clx,.2

HCOaxto'

2 50 ex1O

COa

1000

Na.Kx10

Ca

Mg

Fe)C 10

1000

Na.Kx10

Ca

Mg

Fe If 10 I

SAi4PLE: 6770 Ft. - 1 gallon 100

""' '" ........ r ~

SAMPLE: 6729 Ft. - 6 gallon 100

/ ~ ~ ~

10 1

to 1 .

.......

~ "-

10 tOO

v ~ ./

" " ------~ ~

~

10 :100

V ~ ~

'" ~ ~ -~

---------

,

,

.

tOOO

ClxtO!

HCOJx'"

2 504 x1O

co,

1008

ClxtO!

HCOJX10'

2 504 X1O

Co,

SAMPLE: 7041.5 Ft. - 6 gallon

1000 100 10

,2 Na,K x10

Ca / Mu I '\ ,

~ I Fe.tO


1000 100 10

Na,K x 10'

Ca

'" ~ \ Mu

Fe.1.

-

1 10 :100

V ~I

"""""'" I

" ~ ------ i-"""'""

10 :100

V /'

~

" ~ -I

100.

ClxtoZ

HCOJX1.'

Z SO,x1I

COa

t •••

CIX10Z

HCO;sxtl'

2 SO, x1l

Co,

APPENDIX 8

VELOCITY SURVEY REPORT

Schlurnberger, October. 1984

SONIC CALIBRATION I GEOGRAM I VSP REPORT

COMPANY

WELL

LEASE

FIELD

COUNTRY

COORDINATES

RIG

ELEVATIONS

DATE OF SURVEY

AReo AUSTRALIA LTD.

: POEPPELS CORNER #1

OP-184

WILDCAT

AUSTRALIA

25DEG. 47' l6" S ll7DEG 57' 06n E

NATIONAL 80B

GROUND LEVEL AT lll.OFT AMSL KELLY BUSHING AT 15l.0FT AMSL

21ST SEPTEMBER 1984

POEPPELS CORNER-l

-Q- HALE RIVER-l

I A'J"P-1S' 0l'-J'4

I

THOHAS-l .q.

_I - -f8i --- -

~CUHBA-l .Q- POOLAWOOHA

CONTENTS

SUMMARY

DATA ACQUISITION

PROCESSING PARAMETERS

SHOT DATA

SONIC CALIBRATION

SONIC CALIBRATION PROCESSING

GEOGRAM PROCESSING

VSP PROCESSING

ADDITIONS:

FIG 1 : SCHLUHBERGER WAVELET POLARITY CONVENTION

WELL SEISMIC SERVICE COMPUTATION REQUEST

WELL SEISMIC SERVICE FIELD REPORT

GUN GEOMETRY SKETCH

PAGE NO.

1

2

3

4

6

7

8

11

Page 1

SUMMARY

A Vertical Seismic Profile (VSp) was conducted in Poeppels Corner #1 on 21st September 1984. Eighty-six levels were shot using an airgun source the majority of which have been used in the VSP processing.

The objective of the VSP was threefold:

1) - to determine the mUltiple content of the area by analysis of the downgoing wavetrains.

2) - to get a better tie between the Geogram and Seismic. This is due to the fact that the lateral depth of investigation of a VSP is intermediate between surface seismic and logs (radius 20 meters).

3) - to obtain a high resolution time-depth curve. As the levels are separated by only 2 to 16 milliseconds, accurate velocity analysis can be made.

In addition to the above the VSP has other applications:

a) - Further analysis of the downgoing wavetrain provides information on the earth filtering of the seismic wave versus depth.

b) - The VSP has the properties of being Vertical, therefore minimising the effects of moveout. This simplifies greatly the analysis of highly dipping reflectors, and also the interpretation of data recorded in faulted areas.

c) - One of the most important applications of VSP's is the analysis of reflected signals below the sensor.

Page 2 DATA ACQUISITION

FIELD EQUIPMENT

EnerSI Source Bolt airgun (model 1900B) 200 cu.in.

Source Offset · 230ft · Source Depth 19ft below Ground Level

Source Azimuth · 80 Deg. · Reference Sensor Accelerometer

Sensor Offset 230ft

Sensor Depth : 19ft below Ground Level

Downhole Geophone

Recording Instrument

Geospace HS-1 High temperature (350 Deg. F), Coil Resistance 225 + 10%, Natural Frequency 8-12 Hz, Sensitivity 0.45 V/in/sec. Maximum tilt angle 60 Deg. Min.

Recording was made on the Schlumberger Computerized Service Unit (CSU) using LIS format recorded at Ims sample interval.

PROCESSING PARAMETERS

Seismic Reference Datum (SRD)

Elevation SRD

Elevation Kelly Bushing

Elevation Ground Level

Well Deviation

Total Depth

Sonic Log Interval

Density Log Interval

· · · ·

Page 3

300ft above Mean Sea Level

300ft above Mean Sea Level

153ft above MSL

131ft above MSL

d Deg.

8508ft below KB

1500 - 8508ft below KB

4530 - 8508ft below KB

Page 4

SHOT DATA

Level Depth Stacked Rejected Quality Comment (ft below KB) Shots Shots

8500 0 2 Poor Omitted 8490 6 2 Good 8400 4 3 Good 8300 7 0 Good 8200 5 1 Good 8100 6 1 Good 8000 6 0 Good 7900 4 2 Good 7800 7 1 Good 7100 4 2 Good 7600 5 1 Good 7500 6 1 Good 7400 6 0 Good 7300 7 0 Good 7200 5 0 Good 7100 4 2 Good 7000 5 1 Good 6900 5 1 Good 6810 4 2 Good 6720 5 0 Good 6630 5 1 Good 6530 5 0 Good 6440 5 1 Good 6340 5 1 Good 6240 5 0 Good 6150 7 0 Good 6060 6 0 Good 5970 5 0 Good 5880 4 1 Good 5790 3 1 Good 5700 5 0 Good 5620 5 1 Good 5530 8 3 Good 5440 7 0 Good 5350 7 0 Good 5260 4 1 Good 5170 3 0 Good 5080 6 0 Good 5050 5 1 Poor Omitted 4990 0 3 Poor Omitted 4980 7 1 Poor Omitted 4970 1 0 Poor Omitted 4950 6 2 Good 4870 6 0 Good 4790 4 1 Good 4700 5 0 Good 4610 5 0 Good 4520 4 1 Good 4460 5 0 Good

Level Depth (ft below KB)

4400 4330 4300 4250 4160 4080 4000 3920 3840 3760 3700 3620 3550 3505 3500 3470 3390 3320 3250 3160 3080 3000 2930 2850 2780 2710 2650 2580 2500 2430 2350 2250 2070 1750 1550 1300 1100

Stacked Shots

5 5 2 5 5 6 2 5 5 4 5 3 3 1 1 2 2 4 3 3 3 2 3 3 2 3 3 3 3 2 4 2 3 o 3 6 o

SHOT DATA (cont'd)

Rejected Shots

o o o o o 1 1 o o 1 o o 1 o o 1 1 1 2 1 3 1 1 2 1 2 1 1 o 3 4 1 1 1 1 o 2

Quality

Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Gond Good Good Good Good Good Good Good Good Good Good Poor Fair Fair Fair Bad

l'age 5

Cotmnent

Omitted

Omitted Omitted

Omitted from VSP Omitted Omitted from VSP Omitted from VSP

Omitted

A total of 86 check levels were shot with the number of stacked and rejected shots for each level being sh,own in the table above. The check levels at 8500, 5050,4990,4980,4970,4300,3505 and 3500ft below KB have been omitted from the VSP and sonic calibration processing. In most cases the geophone has been moved to nearby borehole positions in order to improve the signal to noise ratio. Check levels shot between 8400ft and 2350ft have been used in the VSP

processing. Above 2350ft the levels at 2070 and 1100ft below KB have also been omitted from the sonic calibration processing due to poor quality signals.

The general data quality was good and a plot of the stacked check shot data (Figure 1) has been included as Plot 1 of the VSP displays.

Page 6 SONIC CALIBRATION

Purpose: To adjust the sonic log using the vertical times obtained at each check level.

Method: A "drift" curve is obtained using the sonic log and the vertical check level times. The term "drift" is defined as selsmic time (from check shots) minus sonic time (from integration of edited sonic). Commonly the word "drift" is used to identify the above difference, or to identify the gradient of drift versus increasing depth, or to identify a difference of drift between two levels.

The gradient of drift, that is the slope of the drift curve, can be negative or positive.

For a negative drift ~drift <0' and tbe sonic time is grea.ter Adeptb

tban tbe seismic time over a certain section of log.

For a positive drift .~ drift >0' and tbe sonic time is smaller 4depth

than the seismic time over that section of log.

Tbe drift curve, between two levels, is then an indication of the error on the integrated sonic or an indication of the amount of correction required on the sonic to have the TTt of the corrected sonic match the check shot times.

Two methods of correction to the sonic log are used.

(a) Uniform or block shift.

This method applies a uniform correction to all sonic values over the interval. This uniform correction is applied in the case of positive drift and is the average correction represented by the drift curve gradient expressed in #s/ft.

(b) ~T Minimum

In the case of negative drift a second method is used, called At minimum. This applies a differential correction to the sonic log, where it is assumed that the greatest amount of transit time error is caused by the lower velocity sections of log. Over a given interval the method will correct only At values which are higher than a threshold, the At minimum. Values of At which are lower than the threshold are not corrected. The correction is a reduction of the excess of At over At minimum, At - At min.

At - At minimum is reduced through multiplication by a reduction coefficient which remains constant over the interval. This reduction coeffiCient, named G, can be defined as:

G = 1 + Drift "'JI":"(~-:-t----:'~-t-m--:-in~i:-m-um--=-)~dZ-

Where drift is the drift over the interval to be corrected and the value J(At - At minimum)dZ is the time difference between the integrals of the two curves ~t and At minimum, only over the intervals where At> At min.

Hence the corrected sonic: At • C(At - At min) + At min.

Page 7 SONIC PROCESSING

OPEN HOLE LOGS

Both the sonic and density logs used in this report have been edited prior to input into the WST chain. The sonic curve was affected by noise spikes and cycle skipping which have been edited with straight line patching. No density logs were available above 4530ft below KB and so a constant density of 2.4gm/cc has been used above this depth.

To follow the client request of using a replacement velocity of 6000ft/s down to 0.5s no open-hole logs have been used above 1500ft.

CORRECTION TO DATUM

Seismic reference Datum (SRD) is at 300 feet above Mean Sea Level. The airgun was positioned 19ft below Ground Level (188ft below SRD). ARCO AUSTRALIA LTD. requested a replacement velocity of 6000ft/s between SRD and 0.5s TWT (1500ft). To obtain this a velocity of 6290ft/s was used between gun depth and 1500ft below SRD (Based on the transit time from the check level at 1300ft below KB) and a velocity of 4539.42ft/s was input between SRD and gun depth. This resulted in an average velocity of 6000ft/s to 1500ft below SRD and a correction from source to datum of 41.42ms.

SONIC CALIBRATION RESULTS

The top of the sonic log (in this case 1500ft) is chosen a~ the or1g1n for the calibration drift curve. All drift measurements are relative to this point.

The drift curve is noticeable for the large amount of scatter of the drift points. There is no obvious reason for this, especially considering the good quality of the check shot data. However there are some well defined trends on the drift curve and these have been followed as closely as possible. The corrections applied are block shifts of 5.83 us/ft, 1.18 us/ft, 6.65 us/ft

and 1.26 us/ft over the intervals 1353 - 3120ft, 3120 - 3969ft, 3969 - 4601ft and 7386 - 8500ft respectively (depths below KB). Differential shifts using delta-t minimum values of 72.7 us/ft and 67.35 us/ft have been applied over the intervals 4601 - 5340ft and 5340 - 7386ft (depths below KB)

The adjusted sonic curve is considered to be the best result using the available data.

Page 8

GEOGRAM PROCESSING

Geograms were generated using zero phase Ricker wavelets of various frequencies to pick the most suitable frequency to match the seismic section. The presentations include both normal and reverse polarity at IOcm/sec.

Geogramprocessing produces synthetic seismic traces based on reflection coefficients generated from sonic and density measurements in the wellbore. The steps in the processing chain are the following:

Time to depth conversion Generate reflection coefficients Generate attenuation coefficients Choose a suitable wavelet Convolution Output

Page 9 TIME TO OEPTII CONVERSION

Open hole togs are recorded from bottom to top with a depth index. This data is converted to a two-way time index and flipped to read from top to bottom in ord~r to match the seismic section.

REFLECTION COEFFICIENTS - ATTENUATION COEFFICIENTS

Primaries:

Sonic and density data are averaged over chosen time intervals (normally 2 or 4ms intervals). Reflection coefficients are then computed using:

where

R= ~,,-P,v.

P, ~+P, ~ p, = density of the layer above the reflection interface Pz = density of the layer below the reflection interface ~ = compressional wave velocity of the layer above the

reflection interface ~ = compressional wave velocity of the layer below the

reflection interface

This computation is done for each time interval to generate a set of primary reflection coefficients without transmission losses.

PRIMARIES WITlt TRANSMISSION LOSS;

Transmission loss on two-way attenuation coefficients are computed using:

2 2 2 2 = O-R, )( l-R 2 ) (l-R 3' ) ••• O-R n )

A set of primary reflection coefficients with transmission losses is generated using:

PrimarYn = Rn An_I

PRIMARIES PLUS MULTIPLES:

Multiples are computed from these input reflection coefficients using the transform technique from the top of the well to obtain the impulse response of the earth. The transform outputs primaries + multiples.

MULTIPLES ONLY:

By subtracting previously calculated primaries from the above result we obtAin multiples only.

Page 10

WAVELET

A theoretical wavelet is chosen to use for convolution with the reflection coefficients previously generated.

Choices available include:

Klauder wavelet Ricker zero phase wavelet Ricker zero phase wavelet Ricker minimum phase wavelet User defined wavelet

All wavelets can be chosen with or without butterworth filtering and with user defined centre frequencies. Polarity conventions are shown in Figure 2. These Geograms were generated using zero phase Ricker wavelets convolved with a lS-60Hz Butterworth filter.

CONVOLUTION

Standard procedure of convolution of wavelet with reflection coefficients. The output is the synthetic seismic data.

PROCESSING PARAMETER Page 11

PLOT #1 - STACK

All the raw shots after editing are stacked (or added together) to reduce noise.

PLOT #2 - BPF, TAR

After stacking a Band Pass Filter is used to filter out unwanted noise and True Amplitude Recovery to compensate for signal reduction with depth. The data is then corrected to SRD.

Band Pass Filter used : 14-60Hz TAR Factor : 1.2 Correction to SRD : -.041 Sec

PLOT #3 - VELOCITY FILTER

By adding and subtracting the travel time to each trace and then averaging over a number of levels, the upgoing and downgoing can be separated.

Number of levels averaged: 7

PLOT #4 - PREDICTIVE DE CONVOLUTION

By using the downgoing events to analyse the multiple content, parameters can be picked (predicted) to remove (by deconvolution) the multiples from the upgoing wavetrain.

The PDN parameters used:

Length Lag White Noise Added

2.0 sec : .700 sec

270

PLOT #5 - WAVESHAPE DECONVOLUTION

By using the downgoing events after PDN to analyse the remaining multiple content, parameters can be selected to further deconvolve the wavetrain using a known wavelet (Zero or Minimum phase).

The WSF parameters used:

Window Wavelet

2.0 sec Zero Phase

PLOT #6,7 - VSP/GEOGRAM

The upgoing events after WSF are then stacked and displayed with the upgoing from WSF and Geogram. Two stacks are made, one using all data and the other only using the first lOOms of each wavetrain. The latter should simulate the reflectors at the borehole.

Plot #6 contains data using Normal Polarity.

Plot #7 contains data using Reverse Polarity.

VELOCITY INCREASE >-

SCIILUMBERCER WAVELET POLARITY CONVENTION

REFLECTION - COEFFICIENT +

i---R 1 ---------

f

NORMAL POLARITY RICKER

ZERO PHASE

.1 ------

I REVERSE NORMAL REVERSE

POLARITY POLARITY POLARITY RICKER RICKER RICKER

ZERO PHASE

MINIMUM MINIMUM PHASE PHASE

NOTE: WAVELET DISPLAYED UNDER CEOCRAHS ARE FOR A REFLECTION COEFFICIENT OF -O.S

FICURE 1

---------------------~------------------------------. WELL SEISMIC SERVICE COMPUTA"rrON REQUEST

COMPANY: ARCO AUSTRALI!'cONTACT: ____ _

WELL: __ PO_EP_P_E_L_S_CO_R_NE_R_#_l ______ _

FIELD/COUNTRY: __ AU_ST_R_AL_I_A _______ _

LOCATION/DIVISION: _____________ _

NUMBER OF COPIES OF RESULTS (CLIENT)

PRODUCT REPORTS

WSE

WSC 4

PLOT TRANSP.

4

PLOT PRINT

4

TAPE

4

DATEWSTJOB: _____________ _ DATESENT: __________________ __

BY:

I--_G_E_0_-+ __ 4 __ +-_4 __ t-_4 __ -t-___ -1 444 VSP 4

DATA SUPPLIED FOR INTERVALS TO BE PROCESSED FEET CD METRES 0 FROM TO

------------4------~----~ A. LOGS: DENSITY 8505 4533 CLIENT TAPE: FORMAT: SEGY lID LIS [lJ

SONIC 8505 730 B.SHOTS 8490 2250 OENSITY: 800 BPI 0 1600 BPI lE·

SONIC CALIBRATION BY WST (WSC) URGENT? YES 0 NO 0 IS A WELL SEISMIC EDIT (WSE) REQUESTED? YES 0 NO 0 (WSE IS RECOMMENDED WHERE FIELD STACK QUALITY IS AFFECTED BY BAD HOLE CONDITIONS)

REOUESTED TIME ORIGIN (SRD) 300 FEET ABOVE/ MEAN SEA LEVEL (MSL)

STATIC CORRECTION TO BE APPLIED: - 6000 FT IS TO 0.5 SECS

-----------~-----~-----

~rER 1===V=EL=O=Q=n===~==F=R=O=M==:===T=O=== ______ MILLISECONDS FROM GROUND LEVEL OR

3 I TRUE VERTICAL DEPTH (TVO) CORRECTION? YES 0 NO ~ (TVD IS RECOMMENDED IF DEVIATION EXCEEDS 51 DEVIATION DATA SUPPLIED? YES 0 NO I!J 11 INCH WSC DISPLAY DEPTH SCALES TO BE USED (UP TO TWO) 1/5000 0 111000 0 OTHER c=J 221NCH WIDE TIME/DEPTH DISPLAY SPECIAL TIME FUNCTION? (T - DEPTHNELOCITY) YES 0 NO 0 VELOCITY c=J 22 INCH WIDE GEOLOGICAL INTERVAL VELOCITY DISPLAY? YES 0 NO 0 GEOLOGICAL MARKERS SUPPLIED c=J SPECIAL SCALES TO BE USED? SPECIFY .----------------------------------------------------

GEOGRAM URGENT? YES 0 NO 0 FREQUENCY TEST TO BE SUPPLIED BEFORE FINALIZATION (8 BAND WIDTHS) YES 0 NO 0

~--~--~--~--~ fiNAL GEOGRAM PARAMETERS: - WAVELET . FREO. T.lOW T. HIGH F.lOW F. HIGH T.~';;;';;;"_l-~~~--l---1

(ONE GEOGRAM INCLUDES DISPLAYS IN BOTH POLARITIES KLAUOER 0 MIN PHASE 0 V.

FOR EACH OF. PRIMARIES. PRIMARIES + MULTIPLES,

PRIMARIES WITH TRANSMISSION LOSS, MULTIPLES ONLY

FOR THE CHOSEN WAVELET AND T.V.F.)

ZERO PHASE QJ OTHER: I I

F.I-----+---~--.---~

SCALE IS 10 CM/SEC + ONE OTHER - SPECIFY I DIP OPTION YES 0 NO 0 {:;( B ~ d _______ _

~~ cc

~,,\C. NORTH 0<:)<;\ cc (CLOCKWISE)

<:)7 ~}..2~)/WELl ,/ ?!] A

SEISMIC LINE NUMBER ________________ _

(ENCLOSE WELL LOCATION MAP VERSUS SEISMIC LINE) DISTANCE BETWEEN TRACES _-=~:-:-.....,....---____ _ SECTION PERSPECTIVE: SEEN ....... FROM A 0

....... FROMB 0

SPECIALnEQUESTS.~:~==========~~~~~;;====================================~-VERTICAL SEISMIC PROFILE URGENT? YES 0 NO 0

UP TO 3 VELOCITY FILlER TESTS WILL BE SENT PROVISIONALLY

SPECIFY NUMBER OF TRACES IN WINDOW REQUIRED 3 0 50 70 9 0 11 0 TIME VARIANT FILTER (TV F) TO BE APPLIED ON FINAL DISPLAY: TIME 1 TIME 2 FLOW F. HIGH SCALE IS 10 CM/SEC + ONE OTHER. SPECIFY [:=J SPECIAL REQUESTS?

ENCLOSE SEISMIC SECTION. INDICATE RELATION TO WELL ON A DIAGRAM

-------------_ .• -_ .. -.•... _._-_._ .. _-_.------------ --------!"'-"'-'._-

Schfumberger WELL SEISMiC SERVICE FI ELO REPORT PAGE 1 OF 3

*_ ..... . -COMPANY WELL DATE LOCATION ENGINEER WITNESSED BY !

ARCO AUSTRALIA COR~L~1 21/9/84 E~9MANGA THOMAS YANI HAROLD IRBY I BASIN ,

. .ET IXl METRES 0 JACK UP 0 SHIP 0 WEATHER: I

PLATFORM 0 SEMI-SUB 0 SCHLUMBERGERZERO RKB AT ELEVATION 153 1 RELATIVE TO MEAN SEA LEVEL (M.SL) LOG MEASURED FROM RKB AT ELEVATION 0 1 RELATIVE TO SCHLUMBERGER ZERO DRilLING MEASURED FROM RKB AT ELEVATION 0 1 RELATIVE TO SCHLUMBERGER ZERO

SOURCE TIDEl INFORMATION DISTANCE HOUR DATE GUN TYPE WATER 0 AIR £XI TIDE LEVEL TO M.S.L. VOLUME 1 le 200 CUINCHES (RECORD IF LEVEL VARIES PRESSURE 120 - 130 BARS MORE THAN 2 METRES VIBRATOR TYPE DURING SURVEY) SWEEP LENGTH SECONDS FROM HZ TO HZ CSU SOFTWARE VERSION:26.2 I MAX. HOLE DEV: 14° AZIM:320 o

NOTE: SHOTS HIGHLY RECOMMENDED AT TO. TOP EACH SONIC. ABOVE ANO BELOW BAD HOLE INTERVALS I UNCORRECTED RESULTS Quality: G - Good, P • Poor. U • Unsatisfactory

SHOT OEPTH GUN FILTERS TRANSIT HOUR FILE STACK STACK EO SHOTS QUAUTY I REMARKS NO. PRESSURE TIME SHOT 1 3500 130 OFF-OFF 504.4 6:51 1 1 1 CHECK ONLY

2 4300 130 OFF-OFF 603.5 7:05 1 2 2,3 CHECK ONLY

3 6300 125 OFF-OFF 7·26 1 3 5 BAD 4 7300 125 OFF-OFF 846.5 7:35 1 4 6 CHECK ONLY 5 7300 125 OFF-90 846.1 7:37 1 5 7 CHECK ONLY

6 8500 125 OFF-90 7:48 1 . 8 9 BAD

V S P , S:

7 8490 125 OFF-90 915.4 8:03 1 6 11-17 GOOD

8 8400 125 OFF-90 911.4 8:13 1 7 18-24 GOOD 9 8300 125 OFF-90 906.0 8:22 1 8 25-29 GOOD

10 8200 125 OFF-90 901.3 8:30 1 9 32-37 GOOD 11 8100 125 OFF-90 895.4 8:40 1 10 39-44 GOOD 12 8000 125 OFF-90 890.8 8:50 1 11 45-50 GOOD 13 7900 125 OFF-90 885.1 8:59 1 12 51-56 GOOD 14 7800 125 OFF-90 879.8 9:07 1 13 59-64 GOOD 15 7700 125 OFF-90 872.8 9:16 1 14 65-70 GOOD 16 7600 125 OFF-90 865.1 9:24 1 15 71-76 GOOD 17 7500 125 OFF-90 857.4 9:35 1 16 78-83 GOOD 18 7400 125 OFF-90 851.4 9:43 1 17 84-89 GOOD 19 7300 125 OFF-90 843.7 9:50 1 18 90-94 GOOD 20 7200 125 OFF-90 836.3 9:56 1 19 95-99 GOOD 21 7100 125 OFF-90 829.0 10:02 1 20 101-105 GOOD 22 7000 125 OFF-90 823.0 10:20 1 21 107-111 GOOD 23 6900 125 OFF-90 813.9 10:25 1 22 113-117 GOOD 24 6810 125 OFF-90 806.2 10:32 1 23 118-123 GOOD 25 6720 125 OFF-90 798.8 10:38 1 24 124-128 GOOD 26 6630 125 OFF-90 794.3 10-44 1 25 129-134 GOOD 27 6530 120 OFF-90 786.4 10:50 1 26 135-139 GOOD I 28 6440 120 OFF-90 779.9 10:58 1 27 141-145 GOOD 29 6340 120 OFF-90 772.6 11:06 1 28 147-151 GOOD 30 6240 120 OFF-90 764.8 11:11 1 29 152-156 GOOD

I •. /2

_ .. ___ . ___ ... __ ... _ ... _ ... w._. . . ... ___ ... __ . __ _ .- --._-------------------. ~-"'-'- ....... _-

Schrumberger WELL SEISMIC SERVICE FIELD REPORT PAGE 2 OF 3

I .- .. . - . I COMPANY WELL DATE LOCATION ENGINEER WITNESSED BY . I !

r t:.ET 0 METRES 0 JACK UP 0 SHIP 0 WEATHER: I PLATFORM 0 SEMI-SUB 0 SCHLUMBERGERZER~ AT ELEVATION RELATIVE TO MEAN SEA LEVEL (M.S.L.) I LOG MEASURED FROM AT ELEVATION RELATIVE TO SCHLUMBERGER ZERO DRILLING MEASURED FROM AT ELEVATION RELATIVE TO SCHLUMBERGER ZERO

SOURCE TIDEl INFORMATION DISTANCE HOUR DATE

GUN TYPE WATER 0 AIR 0 TIDE LEVEL TO M.S.L.

VOLUME lit CUINCHES (RECORD IF LEVEL VARIES

PRESSURE BARS MORE THAN 2 METRES VIBRATOR TYPE DURING SURVEY) SWEEP LENGTH SECONDS i FROM HZ TO HZ CSU SOFTWARE VERSION: 1 MAX. HOLE DEV: AZIM:

NOTE: SHOTS HIGHLY RECOMMENDED AT TO, TOP EACH SONIC, ABOVE AND BELOW BAD HOLE INTERVALS i UNCORRECTED RESULTS Quality: G • Good. p. Poor, U -",nsatisfactory

SHOT OEPTH GUN FILTERS TRANSIT HOUR FILE STACK STACKEO SHOTS QUALITY I REMARKS NO. PRESSURE TIME SHOT

31 6150 120 OFF-90 757.6 11:19 1 30 158-163 GOOD 32 6060 120 OFF-90 750.7 11:26 1 31 164-169 GOOD

33 5970 115 OFF-90 745.4 11:34 1 32 170-174 GOOD

34 5880 115 OFF-90 738.7 11:41 1 33 175-179 GOOD 15 5790 115 OFF-90 731.5 11:49 1 34 180-183 GOOD 36 5700 115 OFF-90 724.1 11:58 1 35 184-188 GOOD

37 5620 115 OFF-90 718.6 12:05 1 36 190-194 GOOD

38 5530 120 OFF-90 710.7 12:16 1 17 202-205 GOOD 39 5440 120 OFF-90 705.7 12:23 1 38 208-212 GOOD

40 5350 120 OFF-90 698.7 12:30 1 39 214-219 GOOD

41 5260 120 OFF-90 692.5 12:37 1 40 220-224 GOOD 42 5170 120 OFF-90 681.3 12:44 1 41 225-227 GOOD 43 5080 120 OFF-90 677.0 12:51 1 42 229-233 GOOD 44 4950 120 OFF-90 666.5 13:45 1 43 256,257,259 GOOD 45 4870 120 OFF-90 659.7 13:53 1 44 264 FAIR 46 4720 120 OFF-90 651.3 13:58 1 45 266-270 GOOD 47 4700 120 OFF-90 646.0 14:04 1 46 271-275 GOOD 48 4520 120 OFF-90 626.0 14:16 1 47 281-285 GOOD

49 4460 120 OFF-90 619.7 14:23 1 4R 2R~-?qn GOOD 50 4400 120 OFF-90 612.4 14:27 1 49 291-295 GOOD I 51 4330 120 OFF-90 604.7 14'.:n 1 r;n ! ?Qk_':lnn ('"..lY\n i 52 4250 120 OFF-90 596.1 14:37 1 51 301-305 GOOD 53 4160 120 OFF-90 586.8 14:43 1 52 306-310 GOOD 54 4080 120 OFF-90 577.5 14:45 1 53 311-317 GOOD

55 4000 120 OFF-90 566.6 14:51 1 54 318-320 GOOD 56 3920 120 OFF-90 558.1 14:59 1 55 321-325 FAIR -37 3840 120 OFF-90 548.2 15:07 1 56 326-330 GOOD 58 3780 120 OFF-90 539.0 15:14 1 57 331-335 GOOD 59 3700 120 OFF-90 531.9 15:19 1 58 336-340 GOOD 60 3620 120 OFF-90 521.9 15:23 1 59 341-343 GOOD 61 3550 120 OFF-90 514.1 15:27 1 60 345-347 GOOD 62 3470 120 OFF-90 503.0 15 ·11 1 61 348-350 GOOD 63 3390 120 OFF-90 493.6 15:35 1 62 351-353 GOOD

I .. /3 !

... --------... _ .. __ ......... _... . .•. --_. __ ._--_ .. ---_._------------.. __ .. __ .... _--Schfumberger WELL SEISMIC SERVICE FIELD REPORT PAGE 3 OF 3

. - . . . . - . COMPANY WELL DATE LOCATION ENGINEER WITNESSED BV ,

I. ! -J to eET 0 METRES 0 JACK UP 0 SHIP 0 WEATHER:

t PLATFORM 0 SEMI-SUS 0

I SCHLUMBERGER ZERO AT ELEVATION RELATIVE TO MEAN SEA LEVELtM.S L.' I LOG MEASURED FROM AT ELEVATION RELATIVE TO SCHLUMBERGER ZERO DRILLING MEASURED FROM AT ELEVATION RELATIVE TO SCHLUMBERGER ZERO

SOURCE TIDEL INFORMATION DISTANCE HOUR DATE GUN TVPE WATER 0 AIR 0 nOE LEVEL TO M.S.L.

VOLUME x CUINCHES (RECORO IF LEVEL VARIES PRESSURE BARS MORE THAN 2 METRES VIBRATOR TVPE DURING SURVEy) SWEEP LENGTH SECONDS FROM HZ TO HZ CSU SOFTWARE VERSION: I MAX. HOLE DEV: AZIM:

NOTE: SHOTS HIGH LV RECOMMENDED AT TO. TOP EACH SONIC. ABOVE AND BELOW BAD HOLE INTERVALS I UNCORRECTED RESULTS Quality: G - Good. P • Poor. U • Unsatisfactory

SHOT DEPTH GUN FILTERS TRANSIT HOUR FILE STACK STACKED SHOTS QUALITY I REMARKS NO. PRESSURE TIME SHOT 64 3320 120 OFF-90 484.1 15:40 1 63 355-358 GOOD 65 3250 120 OFF-90 476.7 15:45 1 64 359-363 GOOD

I

66 3160 120 OFF-90 465.0 15:51 1 65 365-367 GOOD

67 3080 120 OFF-90 454.4 15:54 1 66 36B-370 . GOOD

68 3000 120 OFF-90 444.9 15:58 1 67 371-373 GOOD :

69 2930 120 OFF-90 435.7 16:02 1 68 374-377 GOOD 70 2850 120 OFF-90 . 427.1 16:07 1 69 379-382 GOOD

71 2780 120 OFF-90 417.4 16:10 1 70 383-385 GOOD

72 2710 120 OFF-90 40B.6 16~lB 1 71 388-390 t.oOD 73 2650 120 OFF-90 399.0 16:22 1 72 392-394 GOOD 74 2580 120 OFF-90 389.9 16:26 1 73 395-398 iGooD 75 2500 120 OFF-90 376.7 16:30 1 74 399-401 iGooD 76 2430 120 OFF-90 368.9 16:37 1 75 403,404,406 ~OOO 77 2350 120 OFF-90 359.1 16:48 1 76 410-414 GOOD 78 2250 120 OFF-90 344.6 16:54 1 77· 415-417 GOOD

CHECK SHOTS.:

79 2070 120 OFF-90 312.2 17:03 1 78 421 GOOD 80 1750 120 OFF-90 275.8 17:10 1 79 422 t;ooD 81 1550 120 OFF-90 246.5 17:20 1 80 426 1:;000 82 1300 120 OFF-90 201.6 17:27 1 81 430,431 BAD 83 1300 120 OFF-90 211.6 17:29 1 82 432 t:;ooD 84 1100 120 OFF-90 175.0 17:38 1 83 434 :;000

I

GUN GEOMETRY SKETCH

CLIENT; ARCO AUSTRALIA LTD.

LAND

SCHLUMBERGER ZERO ........... ...... ... -la.---~~ . ..............•

22'

GROUND LEVEL ------'--lH-J--

~ HYDRO

-

INDICATE ALL DISTANCES RELATIVE TO SCHLUMBERGER ZERO

• DELETE AS APPLICABLE

SHOT GUN HYDRO GUN HYDRO POS'N OFFSET OFFSET DEPTH DEPTH

1 230' 230' 19' 19'

2

3

4

5

6

7

fM.S.L·

M.S.L./S.A.D ••

WELL: POEPPELS CORNER #1 DATE:21 SEPTEMBER 84

OFFSHORE D SCHLUMBERGERZERO

••••• _.. • .• •.•••• • .• - ..... --'j~. • •• . •••••.••.•

. M.S.L.

________ +-, __ GROUND LEVEL

S.R.D. (IF NOT M.S.L. OR

________ J-__ GAOUNDLEVEL)

INDICATE ALL DISTANCES RELATIVE TO SCHLUMBERGER ZERO .

N

s INDICATE GUN/VIBRO AND HYDROPHONE OFFSET AND AZIMUTH RELATIVE TO NORTH

APPENDIX 9

WIRELINE TEST REPORTS

Schlumberger, September, 1984

I .

I

L I

FLUID TEST NO.

TEST DEPTH

PlESSURf DATA Initial Shut in

Shut In Time Sampling Rang.

Sampling Time Final Shut In

Shut In Time Hydrostatic Surface Chamber

REPEAT FORMATION TESTER RECOVERY AND INTERPRETATION DATA

.&168 psi 5 mina 5l To .2.1~pai

'" mina :1.", psi 3. m in, .:1.'1'9 psi

-..;O~ ___ pli

RECOVERY DATA Got (Total)

CondeNCIte vii Woter Mud Sand

RECOVERY ANA&. YSlS free Got Oil

Apt CHavity GOR

Water Rtf (filtered) Chart Cl Titrated Cl formation Water Water Cut

...... cuft ...... cc ...... cc

~/I 000 cc - cc - cc

.'8"1 (j~of -----ppm _"":""=:"'r" __ ppm

100 -_,.;..,;; _____ 7W

%

FORMATION AND LOG DATA Formation .s It N D Porosity :l. I , It - SO ((i.AQ.Q. 0

Iw .u.§..iii.tlQ.!L 0 •

Chart Cl .a. ;'QO P ntraftld Cl P

Water Satvrotion t Q a ,

MUD FilTRATE DATA Rmf Chart Cl Titrohtd Cl

TOOL DATA Sample Unit Size Chak. Siz. P,obe Filter R.,trictor

.189 (a~ol Iyo,ooo PI 2'1. QOu P!

6 GrAL.L.Or-,

'x.o~o"

o Y.. 12] No

RESULTS INDICATE THAT __________________________ MAY lE EXPECTED AT THIS DE'

I REMARKS .reGI(S~ATe D S AH 'LE is TAKE", ON nli~ D£P'''' L 0 "" £ A Clit1H le.. = (. G AL.t.ON

I GAS ANALYSiS

LUID TEST NO.

TEST DEPTH

PRESSURE OAT A Initial Shut in

Shut In Time Sampling Ronge

Sampling Tim. Final Shut In

Shut In Time Hydroatotic Surface Chamber

,Free Ga. C I Solution Got C I Totol Ga. C


~SGA£GATe()'ONE

4r08 '

RecOVERY DATA Ga, (Totol)

Cond.ntOte Oil Wo .. , Mud Sand

RECOVERY ANALYSiS Fr •• Gas Oil

Apt Grovity GO.

Wo .. , Rrf (filte,ed) Chart Cl Titrated Cl Formation Water Wat., Cut

/' cuft ,.. cc -- cc 3,500 cc

--- cc ..- «

NIL.. cuft

---!@_OF

~@~OF -----ppm ~::":'---ppm

100 % G,i,

FORMA nON AND LOG DATA Formation .lAND Porosity ~I ,. It 5"0 (a ~oF

Rw I, )'S fa .200 Of

Chart Cl . il, 000 PP"" ntroted Cl pper

Wo .. , Saturation 100 %

MUD FILTRATE DATA Rmf ~(a~oF Chart Cl ~o 000 ppm Titroted CI~ t 000 ppm

TOOL DATA Somple Unit Size Chok. Size Probe FiI .. , R.,trictor

t ~"LLDN ____ ~_c~

I " t 0.20'

Y., 18 No

:SULTS INDICATE THAT ________________________ MAY lE EXPECTED AT THIS DEPTH

REMARKS _____________________________________________________ _ GAS ANALYSIS

FrH Ga, _____ Cuft

Solution Ga. Cuft T otol Ga, Cuft

RESULTS INDICATE THAT ________________________ MAY lE EXPECTED AT THIS DEI'

I I R~RKS l)1f/ NoT' WIr IT uP TO ~ORMArIO"" "'A~rvA£ flJHEN ,sEAL-INCa GAS ANAL Y$lS

, .... Gat _____ C

Sotlltion Ga. ( Total Gal C


RECOVERY DATA fORMATION AND LOG DATA fLUID TEST NO, .3 Gal (Total) 0 cuft Formotion SAND

0110 CondenlOte 0 cc "'orolity '1 , TEST DEPTH Oil Q cc RI ~(a Ai50

Wat.r JI~OO cc Rw -L!....ia .:l S 0

Mud 0 cc Chart Cl , SOQ p Sand 0 « ntrated Cl p

I Wate, Saturation '00 , PRESSURE OAT A RECOVERY ANAL Y$lS MUD FILTRATE DATA

Initial Shut in JO.14 pli Fr •• Ga. 0 cuft Rmf .18, (a~ol Shut In Tim. 1 mini Oil Chart Cl It:AJ 000

~~ ToJOO~p'i p Samplin; Ran;. API Gravity __ o@_of Titrated Cl .:J';t. 000 P Sampling Tim. 3~~~ min. GOR Final Shut In psi Wate, TOOL DATA

Shut In Time ~ l'.;. mini Rtf (filtered) [email protected]:JL°F Sampl. Unit Size t GItLt.OAl HydrOltatic ~.1.8J ,.,.1 Chart Cl PP'" Chok. Size I X .0.20" Surface Chamber 0 pat Titrated Cl ppm Probe filter

Formation Wote, IOQ "- R •• trictar Y .. Iii No Wate,Cut %

I RESULTS INDICATE THAT _________________________ MAY le EXPECTED AT THIS DEP

REMARKS GAS ANALYSIS ! Fr •• Gas _____ C

I Solution Gal C I Total Gal C


'f RECOVERY DATA FORMATION AND LOG OAT A

FLUID TEST NO. Gcn (Total) 0 cuft Formation SA"'])

10"1' ~' CondeMate Q cc Porosity 1"8 %

,cST DEPTH Oil Q cc Itt ...1Q..ra: ..uQ.. 0, Wa'" ~~QgQ cc Rw ~fa,...llQ.. °F Mud g cc Chart Cl " 000 PP'" Sand 0 cc ntrated Cl PP'"

Wote, Sa"',Otion 100 %

RESSURE DATA RECOVERY ANALYSIS . MUD fll TRA TE DATA Initial Shut in J,44 pti 1',.. Gas 0 cuft Imf ,In ra 6'f 0,

Shut In Time :1- minI Oil Chart Cl --r;;: 0;0-ppm

Sampling Ra. 3~ TS! § I psi APt Grovity ---!@_oF Tit'ated Cl JI1 I QOO PP'"

Sampline Time 15 minI GOI Final Shut In 3,Ii, pti Wate, TOOl DATA

Shut In Time I minI Rtf (filte,ed) .IS' @~o, Sample Unit Size , GAL(.O~ Cl

Hydrostatic :3tf ~l psi Chart Cl ppm Choke Size I,.. .OJ.O"

S"rfaee Chambe, Q pli Titrated Cl ppm Probe Filter Formation Water 100 % R .. trictor Oy .. lilNo Water Cut %

ResULTS INDICATE THAT ________________________ MAY 11 EXPECTED AT THIS DEPTH

EMARKS __ -=·D;,..I,;;;,O_N_O.;".T_.....:I'Il:....It-_'_r-.....:":....:,f_,:...;O=--..;.fu..:;.-IUf_A-;,..-r_1 O .... ",, __ '_Il.. .... E..;;S;;..S.;;..IJI.....;.;;:S_IIJ;;..ff..;..-E_I>l-.....:f:....e_A_'-'_· AJ .... "';.;.· _ ; . I

GAS ANALYSIS

I fr .. Ga. _____ Cwt

I Solution Gal Cut Total Gas Cut

I

------_._--_._----- -- . __ ._---_ .. ,-------REPEAT FORMATION TESTER RECOVERY AND INTERPRET A liON DATA

FLUID TEST NO.

'EST DEPTH

'RESSURE DATA Initial Shut in

Shut In Time Sampling Ranve

Sampling Time Final Shut In

Shut In Time Hydrostatic Surface Chambe,

s rasJ..'

RECOVERY DATA Gcn (Total) CondltftlQte Oil Wate, Mud Sand

RECOVERY ANALYSIS Fr .. Ga. Oil

APt GraVity GOR

Wate, Rtf (filtered) Chart Cl Titrated Cl Formation Wat., Wat.r Cut

0 cuft 0 cc Q cc 3 ~oo cc () cc 0 cc

0 cuft

---=@_oF

[email protected]' ppm ppm

,OQ % %

FORMA nON AND LOG DATA Formation SAN/)

Porolity If % It -.!J2....(ci .::lJ" OF Iw • 35" ~ .2Ja OF Chart Cl ppm TitraNd Cl ppm

Wat.r Sotufatlon ,0", %

MUD FILTRATE DATA Imf ~(CLfLoF Chartel 'to 0,0 ppm Titrated Cl J."{,OOO ppm

TOOL DATA Sampl. Unit Size 1 c;ALc..O~

Cc

Choke Size I x. O.J..O" Probe Filter Reltrictor Y .. (il No

RESULTS INDICATE THAT _________________________ _ MA Y 11 EXPECTED AT THIS DEPTH.

·;.M.ARKS ________________________ _ GAS ANALYSIS

I Fr •• Gal Cuf1 I Solution GaI _____ Cuft I Total Gal Cuft

APPENDIX 10

MUDLOG FINAL REPORT

Duncan New, EXLOG, October, 1984

FINAL WELL REPORT

ARCO INTERNATIONAL OIL AND GAS COMPANY

POEPPELS CORNER NO. 1

AUGUST - SEPTEMBER 1984

by

EXPLORATION LOGGING OF AUSTRALIA INC

The information, interpretations, recommendations or opinions contained

herein are advisory only and may be rejected. Consultant does not warrant

their accuracy or correctness. Nothinq contained herein shall be deemed

to.be inconsistent with, nor expand, m.odify or alter Consultant's obliqation

of performance as provided for in a written aqreem.ent between the parties or,

if none, in Consultant's most recent price list.

CONTENTS

1. INTRODUCTION

a. Well and Rig Data

b. Prognosis

2. DRILLING AND ENGINEERING

3. FORMATION PRESSURES

a. Formation Fracture Pressure

b. Fonnat1on Pore Pressure

4. GEOLOG~ AND SHOWS

5. EVALUATION AND TESTING

a. Logging

b Coring

6. SUMMARY AND CONCLUSIONS

PAGE NO.

1

2

3

8

8

9

11

21

21

22

23

APPENDICES

1. FORMATION EVALUATION LOG

2. DRILLING DATA PRESSURE LOG

3. BIT RECORD

4. WEEKLY REPORTS

5. MORNING REPORTS

1. INTRODUCTION

a. Well and Rig Data

Company:

Well Name:

Location:

Positon:

Field:

RKB-Gl:

RKB-MSL:

Spud Date:

Completion Date:

Completion Depth:

Completion Status:

Exlog Unit Number:

Ex10g Crew:

Report By:

-1-

Arco International Oil and Gas Company

Poeppe1s Corner No. 1

Poeppels Corner. Eromanga Basin. Northern Territory, Australia

Latitude: 250 47' 36" South Longitude: 1370 57' 06'· East

Wildcat

22 feet

131 feet

21 August 1984

22 September 1984

8500 feet

Plugged and Abandoned as a dry well.

195, standard ALFA with OMP

o Horner, B Miles, B Munro, 0 New

o New

-2-

b. Prognosis

Poeppels Corner No. 1 was an exploration well drilled on the crest of

a dip closed anticlinal structure in the western flank of the Eromanga

Basin. The main objectives were lower to middle Jurassic non-marine

sandstones of the Poolowanna Beds. Secondary objectives were Triassic

sandstones of the Peera Peera formation. Other wells drilled in the

area include Thomas No. 1 and Poolowanna No. 1 and data from these .

wells was used for correlation and estimating normal pressure gradients.

Exploration Logging provided a standard mudlogging unit equiped with

a drill monitor panel, shale density kit and autocalcimeter. In addi

tion to the conventional mudlogging and formation evaluation services

provided from spud to total depth, Exploration Logging also provided

a pressure evaluation service utilising the information recorded by

the drill monitor panel. The Operator was continuously advised as to

the status of these analyses and the results are presented in the

appendices to this report (see Appendix 1, Formation Evaluation Log,

and Appendix 2. Drilling Data Pressure Log).

-.3-

2. DRILLING AND ENGINEERING

Poeppels Corner No. 1 was an exploration well drilled in south eastern

Northern Territory using Richter Rig No. 8. The well was drilled in 33 days

using 11 bits (4 tooth bits. 6 insert bfts. 1 core bit) which drilled for

a total of 338.5 hours at an average rate of penetration of 24.8 ft/hr.

Good, safe and generally efficient drilling practice was used and hole pro

blems were comparatively minor although some time was lost conditioning the

hole prior to running the 9.625- casing. No Significant hydrocarbons were

encountered.

26" and 17.5" Hole Section. 31 ft (GL) to 740 ft.

A 26" auger bit was used to drive the surface hole to 60 ft where the auger

bit snapped and had to be fished. During fishing operations the hole was

deepened to 63 ft where the 20" conductor pipe was run and cemented with the

shoe at 63 ft. The flowline. etc, was connected and NBll, a HTC OSC 3AJ 17.5",

was run and drilled to 740 ft at an average rate of penetration of 28.2 ft/hr.

At 740 ft returns were circulated. a wiper trip made with no problems, and

18 joints of 54.5 lb/ft, K55, 13.375" casing run and cemented with the shoe

at 723 ft.

12.25" Hole Section. 740 to 4540 ft.

The 12.25" hole was drilled from 740 to 4540 ft, a distance of 3800 ft, using

two tooth bits, in a total of 75 hours at an average rate of penetration of

50.7 ft/hr.

-4-

The Baps were nippled up and tested and NB#2, a HTC f3A,'was run and tagged

cement at 682 ft. The cement. shoe and new hole were drilled to 743 ft

using water. At 743 ft the drilling fluid was converted to a water-polymer

mud system but this became contaminated by the cement and had to be dumped.

Drilling then continued, using water, to 848 ft where returns were circu

lated and the water replaced with a water-polymer mud system and the bit

pulled to add stabilizers to the BHA. RRB#l, a HTC X3A, was run next and

drilled to 3249 ft before being pulled due to high bit hours and an in

crease in torque. Minor tight hole was recorded from the first few stands

of the trip out. On the trip in with NBI3, another HTC X3A, a bridge was

hit at 2256 ft and was reamed to 2315 ft. The trip in continued to 3126 ft

where the failure of a rig motor necessitated the suspension of the trip

while repairs were carried out. On resumption of the trip the hole was

tight and had to be reamed from 3126 to 3156 ft. By 3156 ft it was no .

longer possible to circulate, probably due to cavings/filt packing off the

BHA, and four singles had to be pumped out before circulation was regained

and the trip in could be completed.

NB#3 drilled to 4540 ft, with surveys being run at 3725 ft (1.75 degrees),

4260 ft (1.75 degrees), and at 4520 ft (1.25 degrees). At 4540 ft bottoms

up were circulated and the bit pulled. Tight hole was noted on the trip

out and the bit run back to bottom where returns were circulated to condi-

tion the hole and a high viscosity pill circulated to clean out the hole.

A 15 stand wiper trip was made with minor tight hole on the trip out and 43

ft of fill being reamed/washed on the trip in. Returns were again circulated

to further condition the hole, a 10 stand wiper trip made with no drag or

fill, bottoms up circulated and the bit pulled. Wireline logs were run,

-5-

with a wiper trip being made between logging runs and 119 jonts of K55

40 lb/ft. 9.625" casing were run and cemented with 330 sacks of Class G

cement lead slurry at 13.5 ppg tailed by 168 sacks Class G cement at

15.8 ppg. A wireline temperature log was run which indicated that the top

of the cement was at 2650 ft.

A saltwater-polymer mud system. with weights between 9.3 and 9.6 ppg, was

used in the 12.25" hole section. The hole condition was generally good,

however below 3250 ft considerable problems with cavings and fill occurred

and some time was lost circulating to condition the mud and to remove

cavings/ fill from the hole. The main source of the cavings appears to

have been from 840 to 1140 ft and from 1460 to 1540 ft. Both these zones

may have been slightly overpressured.

8.5" Hole Section. 4540 to 8500 ft (Total Depth).

The 8.51t hole section was drilled from 4540 to 8500 ft, a distance of

3960 ft, using one tooth bit, one core bit and 7 insert bits, in a total of

239.5 hours (drilling time) at an average rate of penetration of 16.5 ft/hr.

The BOP stack, flare line etc, were connected and successfully tested, the

12.25" BHA laid down and a slick 8.5" BHA picked up and NB#4, a HTC J04

run in. After drilling cement from 4450 ft. the shoe track and new hole to

4450 ft. bottoms up were circulated and a leak off test run. This test

indicated a formation fracture pressure of 14.1 ppg EMW. At 4616 ft a

negative flow check was made, bottoms up circulated and cement contaminated

-6-

mud dumped. Drilling continued to 4650 ft where bottoms up were circulated

and the bit pulled to add stabilizers to the BHA. NBNS was run in to the

shoe and the existing saltwater-polymer mud system replaced by a saltwater

gel-polymer mud system. The trip 1n was them completed with the last 11 ft

to bottom being reamed. Thirty klb drag was noted while making a connection

at 5546 ft and a high viscosity pill circulated to clean out the hole.

At 5664 ft bottoms up were circulated. a survey dropped and the bit pulled

due to bit hours and increased torque.

NB#6, a HTC J22. was run and, after reaming 10 ft to bottom drilled to

6506 ft where bottoms up were circulated, a survey dropped and the bit

pulled. NB#7, a HTC J33, was run in but only drilled to 6551 ft due to a

washed out nozzle. After replacing the nozzle and adding a junk sub to the

BHA RRB#7 was run and drilled to 6938 ft where bottoms up were circulated,

a survey run, and the bit pulled due to increased torque and high bit hours.

Minor tight hole was recorded on the trip out between 6938 and 6467 ft.

NB#8, another J33 drilled to 7421 ft, with bottoms up being circulated at

7022 ft and 7054 ft to check for possible shows. Forty klbs overpul1 was

noted on a connection at 7419 ft with high torque occurring while working

back to bottom. At 7421 ft bottoms up were circulated, a survey dropped

and the bit pulled with tight hole being noted from 7421 to 6761 ft.

The stack was successfully tested and NB#9, a HTC J44 run, with the inter

val 7359 to 7421 ft being reamed. After a drilling break at 7570 ft bottoms

up were circulated with 1.25 units of gas (from a coal) being recorded~

At 7829 ft bottoms up were circulated, a survey dropped and the bit pulled

due to erratic torque. The torque was probably due to a change 1n lithology.

-7-

HBI10, a J44. drilled to 7948 ft where bottoms up were circulated with

0.75 units of gas being recorded from a (fractured?) carbonate. At 8344 ft

bottoms up were again circulated, a survey dropped (misrun), and the bit

pulled due to high bit hours and decreasing rate of penetration. Minor

tight hole was again noted on the trip out from the interval 7307 to 7127 ft.

NBl11, a J33, drilled to 8469 ft where a deviation survey indicated an in

clination of 14 degrees. The high deviation was due to the bit following

the dip of the basement.

Drilling continued to 8490 ft where bottoms up were circulated and the bit

pulled to cut a basement core. Core No. 1 was then cut from 8490 to 8500 ft

and recovered 10.6 ft of metasediments and trachyte. Wireline logs were

run with wiper trips after the HOT and CST logs. Cement plugs were set

and Poeppels Corner No. 1 was abandoned as a dry well.

A saltwater-gel-polymer mud system was used in the 8.5" hole section with

properties sufficient to prevent any serious hole problems. Carbides were

run regularly, to checK for hole washouts and the effectiveness of the gas

detection system, and indicated that the hole was s1ightly washed out.

Minor overpull was noted from most trips through the newly drilled section

of hole. This was probably caused by slight swelling of hydratable clay

stones and shales.

-8-

3. FORMATION PRESSURES

a. Formation Fracture Pressure

A leak-off test was run after drilling out the 9.625" casing and

gave the following results:

Hole Depth ft

4550

Shoe Depth ft

4534

Mud Weight·

ppg

9.0

Surface Pressure

psi

1200

Total Pressure

psi

3329

Fracture Pressure

ppg

14.07

No mud loses to the formation were recorded while drilling the well

and formation fracture pressures exceded mud hydrostatic at all times.

-9-

b. Formation Pore Pressure

Based. on the expected stratigraphy and data from the Thomas and

Poolowanna No. 1 wells a normal pore pressure of 8.6 ppg EMW was

assumed for Poeppels Corner No. 1. This was confirmed by RFTs run at

6729, 6770. 7041 and 7052 ft, all of which indicated formation pore

pressures of between 8.57 and 8.59 ppg EMW.

Dxc, bulk/shale density. gas. cavings, and hole deviation were all

continuously monitored as an aid to pressure detection but most proved

unreliable. Shale density and bulk density determinations were affected

by the lack of good shales and by the hydratable nature of most of the

clays. Gas values throughout the well were too low to detect any trip

or connection gases. if present. The interbedded and variable nature

of the lithologies and the absence of good claystone/shale sections

made Dxc values unreliable and difficult to interpret. Cavings/fill

and hole condition proved to be the best parameters for indicating, at

least qualitatively, changes in pore pressure.

The 17.5" hole section appeared to be normally pressured at 8.6 ppg

and there was no indication of abnormal pressuring 1n this section.

The parameters monitored while drilling indicated that the 12.25 t1 hole

was normally pressured at 8.6 ppg. However the amount of cavings and

fill seen after trips below 3249 ft and the splintery nature of these

cavings indicated the presence of minor overpressuring. The maximum

formation pressure was estimated to between 8.8 and 9.0 ppg EMW.

-10-

Wireline logs run at 4540 ft indicated that the intervals 840 to

1140 ft and 1460 to 1540 ft were significantly washed out and it is

probable that the overpressuring may have been restricted to these

zones.

The 8.5" hole section appeared to be normally pressured and no evi

dence was seen to indicated any abnormal pressuring. This was con

firmed by RFTs run at 8500 ft which gave the following results:

FORMATION DEPTH FSIP PRESSURE ft psi ppg EMW.

4708 2166 8.85 6729 2997 8.57 6770 3023 8.59 7041 3141 8.58 7052 3145 8.58

The RFT at 4708 ft was run in the top fo the Algebuckina Sandstone

and the slightly higher formation pressrue reading was probably due to

water drive in the sandstone.

• I

-11-

4. GEOLOGY AND SHOWS

Poeppels Corner No. 1 was an exploration well drilled in the western flank

of the Eromanga Basin to test the hydrocarbon bearing potential of the lower

to middle Jurassic sandstones of the Poolowanna Beds. Triassfc sandstones

of the Peera Peera formation were also considered targets.

Exploration Logging personnel collected, prepared, described and packaged

cuttings and mud samples as per the requirements of Arco. Samples were

collected at 30 ft intervals from spud to 740 ft and at 10 ft intervals

from 740 to 8500 ft.

No significant hydrocarbon shows were recorded. Gas values ranged from

nil to trace with a maximum of 1 unit (200 ppm) from a coal at 7560 ft.

Because of the very low background gas readings carbides were run frequ~ntly

to check the sensitivity of the gas detection system and consistently gave

good results. No evidence was seen to indicate the presence of significant

liquid hydrocarbons, with only trace shows, mainly from carbonaceous material,

seen between 6550 and 7420 ft. The absence of hydrocarbons may indicate

a lack of seal 1n potential reservoir horizons.

The following lithologies were observed:

60 ft (first returns) to 640 ft

This interval consisted of claystone, which drilled at between 15 and

30 ft/hr and at an average 60 ft/hr. No gas. No shows.

-12-

The claystone was medium red brown» becoming light o~ange to very light

grey with depth» very soft to soft, dispersive, slightly calcareous,

trace to occasionally common very fine quartz grains.

640ft to 2670ft

This interval consisted of claystone with lesser siltstone and minor

sandstone. Rates of penetration averaged 80 - 120 ft/hr in the claystones,

60 - 100 ft/h r in the s i1 ts tones and 30 - 40 ft/h r in the sands tones.

No gas. No shows.

The claystone was yellow grey to light olive grey, often green grey.

occasionally moderate brown, dispersive, rare silt, good trace glauconite,

trace very fine carnonaceous detritus. The siltstone was light olive grey

to green grey to yellow grey, occasionally brown grey, very soft to

occasionally firm, common to abdundant clay matrix, trace to common very

fine quartz grains, trace to good trace lithics and very common carbonaceous

flecks. The sandstone above 1590 ft was light olive grey to dark green

grey, very soft to firm» very fine to occasionally fine, subrounded, .

moderately sorted, common to abundant argillaceous matrix, trace siliceous

cement, trace to common glauconite grains, trace lithic and volcanic grains,

trace very fine carnonaceous detritus. nil to trace visual porosity.

From 1590 ft the sandstone was light grey green to medium grey to light

grey brown, very fine to medium, dominantly fine, subangular to subrounded,

poorly to moderately sorted) trace to common argillaceous matrix, trace to

-13-

common calcareous cement, rare pyrite cement, common glauconite and

alteed feldspar, good trace lithic and volcanic grains, trace

carbonaceous detritus, rare muscovite, nil to trace, rarely fair visual

potosity. The sandstone often had a dull brown mineral fluorescence.

2670ft to 2930ft

This interval consisted of siltstone with minor limestone and claystone.

The siltstone drilled at rates of penetration varying from 80 to 120 ft/hr.

The limestones and claystones drilled at between 45 and 60 ft/hr. Trace

gas (all methane) was recorded.

The siltstone was medium dark grey brown, soft to occasionally firm,

common to abundant clay matrix, slightly calcareous, trace very fine

carbonaceous flecks, very rare mica and disseminated pyrite and graded in

part to claystone. The limestone was medium brown to light orange brown,

waxey luster, firm to moderately hard, massive, nil to occasionally

common argillaceous material. The claystone was medium dark grey brown,

soft to firm, trace very fine carbonaceous flecks.

2930ft to 4485ft

This section consisted dominantly of claystone, which graded 1n part to

silstone, and lesser sandstone. Rates of penetration through the

-~-

claystone averaged 40 - 80 ft/hr, and through the sandstone averaged

40 ft/hr. Minor gas of less than 0.5 unit (all methane) was recorded.

No shows.

The claystone was medium brown grey to brown grey to dark grey, soft to

firm, occasionally moderately hard, massive to subfissile, silty in

'part, trace very fine sand, slightly calcareous, micro-micaceous in

part, trace carbonaceous flecks, disseminated and nodular pyrite.

From 3150 ft to 3900 ft the claystone contained trace to abundant

Inoceranus shell fragments and rare brachiopod shells. The shell

fragments had a dull yellow mineral fluorescene. The claystone was

interbedded with, and graded to, siltstone, medium brown grey to dark

brown grey to dark grey, firm to occasionally moderately hard, blocky,

trace to occasionally common clay matrix, slightly to moderately

calcareous, trace pyrite, common to abundant very fine quartz, good

trace very fine glauconite.

The sandstone was medium light brown grey to medium brown grey, medium

grey, friable to firm, very fine to occasionally medium, diminantly fine,

moderately sorted, sub rounded to rounded, abundant argillaceous matrix,

good trace calcareous cement, common altered feldspar, lithic grains,

trace glauconite, pyrite, mica and carbonaceous matter, nil to very poor

visual porosity. The sandstone had trace to 50% dull orange to bright

light yellow mineral fluorescence.

-15-

4485ft to 5520ft

This interval consisted of a sandstone, which drilled at rates of

penetration varying from 40 to 100 ft/hr and averaging 60 ft/hr.

No gas. No shows.

The sandstone was very light grey, often clear, loose to friable.

occasionally moderately hard, very fine to coarse, dominantly fine to

medium, rarely very coarse, subangular to subrounded, poorly sorted,

trace argillaceous matrix, good trace to common siliceous cement and

quartz overgrowths, rare subhedral grains, rare pyrite cement, rare

lithic and carbonaceou's grains, rare to good trace garnet, trace to

poor, rarely fair, visual porosity.

5520ft to 6715ft

Sandstone with minor siltstone and coal. Rates of penetration through

the sandstone decreased from 60·80 ft/hr at 5520 ft to 20 -- 40 ft/hr

by 6400 ft. No gas. No shows.

The sandstone was clear to very light grey, loose to occasionally

moderately hard, very fine to very coarse, dominantly fine to medium,

subangular to subrounded, moderately well sorted, trace white argillaceous

matrix, common siliceous cement and quartz overgrowths, trace medium to

dark grey lithics, trace to occasionally common red garnets and

-16-

carbonaceous detritus~ trace to fair visual porosity. The siltstone.

was light to dark grey, firm to moderately hard, subfissile, commonly

micro-micaceous, moderately siliceous~ common carbonaceous flecks.

The coal was black, hard, earthy to subvitreous, blocky to sub-conchoidal,

very clayey and silty in part. The coal had a very weak to moderate,

slow to very slow, streaming, milky white crush cut fluorescence.

6715ft to 7350ft

This interval consisted of sandstone with interbedded silstone, shale and

minor coal. Gas values ranged from nil to 0.5 units, with Cl to C4 being

recorded. The gas was from coal/carbonaceous material. Aggregates of

fine sandstone although having no natural fluorescence, gave a very weak

milky white cut/crush cut fluorescence, probably from carbonaceous material

in the sandstone. Trace crush cut/cut fluorescence was also obtained

from siltstones and shales. Rates of penetration averaged 20 to 40 ft/hr

through the sandstones and 10 to 20 ft/hr through the siltstones.

The sandstone was clear to very light grey to light brown grey, friable

to moderately hard, very fine to medium, dominantly fine, subangular to

subrounded, well sorted, good trace white argillaceous matrix, common

siliceous cement and quartz overgrowths, trace pyrite, lithics and

carbonaceous flecks, trace to very poor visual porosity. The siltstone

was light brown to brown grey, firm to hard, massive to subfissile, very

clayey in part, trace to common carnonaceous flecks, trace very fine

quartz grains in part, micro-micaceous. Grades in part to silty shale,

-17-

medium dark brown to dark grey, firm to moderately hard, subfissile to

fissile, commonly micro-micaceous and carbonaceous.

7350ft to 7690ft

This interval consisted of siltstone, grading in part to silty shale,

interbedded with lesser sandstone and minor coal. Rates of penetration

varied from 5 ft/hr in the s11 ty shale to 15 to 20 ft/hr in the sandstone

with drilling breaks of up to 60 ft/hr in the coals. Minor gas of up to

1 unit (Cl - C4) was recorded from the coals. Trace dull orange

fluorescence giving a very poor cut/crush cut fluorescence was recorded

intenmittantly from siltstone, sandstone and silty shale throughout this .

interval. The cut was probably from carbonaceous material.

The sandstone was very light grey to medium grey brown, friable to very

hard, dominantly hard, very fine to fine, occasionally medium, subangular

to subrounded, occasionally rounded, moderately sorted, common white to

light grey argillaceous matrix, common siliceous cement, trace lithics

and carbonaceous flecks, trace to very poor visual porosity. The

sands tones had a trace dim orange to very dim light yellow green natural

fluorescence giving an extremely weak crush cut to a weak slow streaming

cut fluorescence from dry samples only.

The s1ltstone was light grey to medium grey brown, occasionally very dark

grey, firm to moderately hard, subfissile, common very fine "quartz grains,

common carbonaceous flecks and micro-laminae, micro-micaceous, trace

disseminated pyrite. The silty shale was medium brown grey to very dark

-~-

grey brown, firm t~ moderately hard, subfissile to fissile, commonly

carbonaceous and micro-micaceous, common silty material The coal

was black, hard, brittle, vitreous, conchoidal fracture, often very

argillaceous. The siltstone, silty shale and coal had a trace dull

orange fluorescence giving a weak milky white crush cut fluorescence

with a weak, very slow streaming, milky white cut fluorescence.

7690ft to 7826ft

This interval consited of chloritized talc which drilled at rates of

penetration varying from 5 ft/hr to 19 ft/hr and averaging 10 ft/hr.

Trace gas, all methane, no shows.

The chloritized talc was white to medium green, occasionally medium

yellow, soft to occasionally moderately hard, fissile, pearly lustre,

phyllitic texture, common metamorphic flow and recrystal1ized texture,

trace very dark grey, verY micaceous,carbonaceous grains, trace coarse

quartz grains with internally intergrown black mineral (tourmaline?)

interbedded with minor red shale and sandstone.

7826ft to 7940ft

The phyl1ite was dark grey, hard, fissile, commonly micro-micaceous,

moderately carbon-aceous, common intergrown pyrite, minor quartz veining

where si~y, very silicified, grading to and interlaminated with guartzite,

light grey, often translucent, cherty texture in part, conchoidal

fracture in part, very hard, original sandstone structure a1most entirely

-19-

destroyed by sflicffication, trace biotite, trace lamfnar carbonaceous

and argillaceous matter, reI ic quartz grains often stress elongated,

trace disseminated pyrite especially along fracture planes, trace

radial pyrite growth, no porosity.

7940ft to 8496ft

The rocks in this interval were interpreted by EXLOG personnel as being

metasediments. However an examination of Core No 1, cut from 8490 ft

to 8500 ft, indicated that there was a strong volcanoclastic influence

in this section and it is probable that the metasediments also included

welded tuffs, igni'nlbrites, flows etc. Strong quartz, dolomite and

calcite veining was also common throughout this interval. Rates of

penetration varied from 6 ft/hr to 22 ft/hr and averaged 8 ft/hr. No

hydrocarbon indications were seen but from 8300 ft minor gas was

recorded. This was probably produced by the decomposition of polymers

1n the mud.

The metasediments/volcanics were white to bright green grey to medium

grey, mottled in part, hard to very hard, dense and massive to

occasionally fissile, common white to medium green grey (siliceous)

groundmdss with chloritic veins, bands and ellipsoids, common to abundant

cryptocrystalline to macrocrystal1ine calcite and dolomite veins and

crystals, common quartz veins, calcite, dolomite and quartz commonly

intergrown, very micaceous in part, schistose/phyllitic texture where

micaceous, rare acicular texture, rare ellipsoidal quartz grains with

-20-

"growth halo" texture, all grain boundaries diffused and intergrown,

grades in part to marble, no porosity.

8496ft to 8500ft

This interval was seen in the bottom part of Core No 1 and consisted

of a trachyte/diorite which was very dark grey to black, melanocratic,

very hard, massive, hyaline with fine hornblende augite, pink orthoclase

and plagioclase crystals, common feldspar phenocrysts up to granule in

size. High angle fractures infilled with calcite and occasionally chlorite

were also seen. The contact between the metasediments/volcanics and the

trachyte/diorite was dipping at 35 deg with a hole deviation of 14 deg.

-21-

5· EVALUATION AND TESTING

a) Logging

Wireline logs were run as follows:

Depth Interval logged logs Run Driller Bottom Toe

ft ft ft

4540 4494 30 Dll-MSFl-GR-Cal 4478 728 SLS-GR 4484 728 HOT 4460 SOO CST (1 gun)

8500 8505 4533 lDL-CNL-EPT-GR 8500 4533 OLl-MSFL-GR-SP 8500 4533 SLS-Cal-GR 8500 4533 HOT 7052 4708 CST (2 guns) 8500 2650 WST

The RFT's run at 8500 ft recovered only filtrate and formation water

-22-

~ Coring

Core No 1 was a basement core cut from 8490ft to 8500ft and

recovered 10 1 5.5" (104.6%) of metasediments/volcanics and

trachyte-diorite.

At 4540ft 41 CSTls were shot with 4 misfires. 1 lost and 36

recovered. These were described by EX LOG personnel.

At 8500ft 81 CST's were shot with 10 being lost and 71 being

recovered. These were also described by EXLOG personnel.

-23-

6. SUMMARY AND CONCLUSIONS

Poeppels Corner was an exploration well drilled in the western flank

of the Eromanga Basin. The well was drilled in 33 days to a total

depth of 8500 ft using H bits at an average rate of penetration of

24.9 ft/hr.

No significant hydrocarbon indications were seen possibly due to the

lack of seal in possible "resevoirlt sections. Poeppels Corner No 1

was plugged and abandoned as a dry well.

APPENDIX 11

DRILLING TIME CURVE

Kevin Gale, ARCO International Oil and Gas Co., October, 1984

-.~

soo\;'

DRILLING TIME CURVE DAYS

10 20 30 40 5e 60

: : : : : : ; ; 1-: ~ : : :~ ~ : : I :. ~ : : ~ .::.: : j- . : : . - . . : : 1 :: : : : : : : : !.: ~ ~ : : : : : : ! : : : . : : : . CD:::: : : i : : . : :::: : j ~ :: ::: :: : j : ...... ::r : : . :: :: I:: : : : : . : : :: ....

• • " .' . • t • • .. ~ • " .. , • . • , . ~ t • • • • • .

POEPPEL'S . CORNER

: :-:-t~.: : :: :~.:.: i :: ~ : :: ~ .. • - ~ -j ••••• - -- •.••••••••• -. • -

· : .:i~~-: ~ :_=-.:~:j~.:.:_:-= : _~ .. , ~ .'.. -- - .... '"' ~ ......... - -- -.,_ .. --- . . ·.-.t-,,-·~·- .- ........ _ ..... _ .. -

· --+-.--- -- .. +-.. ----· - ... -. • . . . . . . I •.......

· 4·---·.---. - _ .. -" -- - ..... - -- ...

: .. =t~ -~: ~:~.:.J~ =: :=~~: ~ : ---t-- -- . --.• - ... ---- .. ---+ --- - • _...!" •. - - -.. •.. 1

--r--------. _. r - ------ -. - •

• • -----...'" - --- T

Drillina 'I':i.m! Event Cbde .

1. Drill 17-1/2" hole. 2. :Run and cement 13-3/8" casing. 3 •. Drill 12-1/4" hole. 4 . Run Group I Electric I..ogs. 5. Run and cerrent 9-5/8" casing. 6. Drill and core 8-1/2" hole. 7. Run Group II Electric logs. 8. Run and cettent 7" casing. 9. Run cased hole fo:cnation tests .

10. Plug and abandon well.

, .

.•• ~ •• ~ .. __ ... .,.~ • ... i ... _* ... ,._ •• w ~ ••••• ~_ •• ~,

---------

• •• i

..•. I

. . . . , . .

. 8000' . -.-----'--- --......... -.--------.~-.----.-

. . . ~ . .. ~ . ~ .. . ~ .. . . ~ • "~ I .

• • • • • • • j

. .... ~ . . . ~ .. . . . . ~ . I .

190G$' .---- . - . ... ., P.itOGRllrl

. G} : :<r : : . : .. : ~I . :: : : ~ • : . : : : . . . . . . . I ' ~ ~ .. ... ...,....' .,... ... ~ ~ , . .

· . I . I . . . . . I .. · .. .. .. ... ! . . . . .

. .. I .... , ..... · •.. t •.•••••. · .... I .... : : . ~ ~ ~OT : UQO l~D -. ~ :. ~ : : . : . : : ..

t .

: : 1 : . , ,

.... ___ --J...-___ ...... _---+. __ -______ .... ______ .. ________ ........ _________ .. _ .... _______ _

· " .. . . .

· . ,

APPENDIX 12

CASING AND CEMENTING REPORTS


PAGE ••• _L ___ OF ___ ••..

.AReO AUSTRALIA LTD . .

CASING OR COMPLETION EQUIPMENT SUMMARY

POEPPELS WELL .~Q~~~.L FIELD ____ ._. ___ • ___ AReo ENGINEER !: ... ~r.f.~J.~.Y. ..•....... DATE 2)_~.!J.9..M ...

NOTE; Item No. 1 is on bonom DISTANCE: Rotary Kellv Bushing to : ___ •• _ inch .• ___ ••• __ ... _ .... psi WP FLANGE -----•. - ... ft

ITEM DESCRIPTION

LENGTH DEPTH SET J No. feet FROM RKB 1Ft.)

1 13-3/8" float shoe Howeo buttress 1 50 72S 73 !

2 1 jt 13 .. 3/811 casing, K55, 54.5 lb, buttress 39 70 727123

3 13-3/S" float collar. Howeo buttress 1 50 687153 4 17 jts 13 .. 3/S" casing, K55. 54.5 lb. buttress 660193 686 03

5 Casing head FMC·C22BP 1 20 25110 RKB to top of casing head 23!90

I j

Equipment used I I . I I

i

1 10 ea 13-3/8" Howeo central i zers i

2 I 2 ea 13-3/8" Howco stop rings I I

3 1 ea 13-3/S" top plug I I :

4 I 13-3/8" casinct head. e22 FMC 3000D5; I I

I j I I

i 1 I

I I .

I i I

I I I I

I ! I :

i I I I ,

I

i i I

I ! I : !

I I i I I t

I I I !

i : , I

i i

I ! I I I I !

i I

. .

i

! I

CAS IHC CEMENTING REPORT

lUC: RICHTER 8 ........ " •••• " •• " •••••• " •• I CASING SIZE; 13-3/S"

" " " ...... " .. " .. " " " . , Howeo CEMENTING COMPANY: ••••••••••••••• CEMENT UNIT: ••••••••••••••••• TYPE: ••• JET/IIIK ••••••••

WELL DATA 17~ ~o NA Sole .i:e; •••••••••• , Deviation at TO ••• ! ...... , Deviation at last csg. shoe ••••••••••••

Shoe .et at: ••• 128 1 MD •••••• , TVD, Last casing •••• 2Q· at •••• 63· MD ••••••• TVD

Cased tnterval •••• ~3 ft., Open hole interval •••• 665ft.

CEHTRALIZERS : HOweO 10

Ma.rlUfactueZ': •• " •••••••••••• "". Ty'pe:: •••••••••••••••••••• QllantLty: •••••••• " ........... ".

ta) •• ~ ~q. ft. spacing fraa ••• n~· to •• 9ZQ-. • I Cb) •• QQ. ft. spacing from •• &ZQ .' to •• &~ • •

MUD PROPERTIES: U-ediately prior to cementing)

• PPG VIS PV yp 0/10 GEL W.L. TEMP. IN TEMP. our· BHCT * BHST • 9.2 40 13 17 4/6 . Bottom up gas - units, Final low background units. : (~f'mea

lured). • frOlll Horner log plot

CEMENT DETAILS:

ADDITIVES (WEIGHT) CEMENT MIX FLUID GEL EXTENDER RETARDER F.R. FLUID LOSS O'l'HER

TYPE G sW'1tM CFR2

ONITS li'PG SX BaL i':~1 ~'tU ~eo tB

SCAV. 10.5%

LEAD 700 83 400

TAIL

Cement on rig before job 1504 SX; After job ~q1 .. SX; Cement uSeQ actual .~qq. 700 Cement used cal.. ••• •• sx.

JOB TIMES:

OPERATION START FINISH TIME BBL BPM

CIRCULATING 2000 2100 60 mins 480 8 PREFWSH 2106 2109 3 15 5

* SCAVENGER

* LEAD SLURRY 2118 2158 40 83 2

* TAIL SLURRY

* DROP PWG 2159 2201 2

SX,

REHARl(S

2 x hole vol. water

* DISPLACE.MENT 2202 2219 17 96 5.6 Calc .•• 1Oa. bbl

* Total job times ••• ? .. hrs. ~OjA~ .. min, sbut downs: ••••••• min, CIP ~~~~ ••• Reciprocation stopped at ••••••• hra., slips set ••••••• hrs. after CIP.

REHARl(S:

Plug bumped with •• !?99 pSi, Float: held/l!UXlIMXKMll, Volume of cement returns •• 2.8 •• klbl, Returns to surface after ••• ~e. ~bl displacement, Lost circulation: .~/No, after ••••• bbl Displacement.

A. Bradley ARII DRLG. SUPERVISOR; •••••••••••••••• Date:

23 AUG 84

PAGE ._. ___ OF ____ •.••.

AReo AUSTRALIA LTD. -

CASING OR COMPLETION EQUIPMENT SUMMARV POEPPELS A. Bradleyl

WELL .~OR~~_. FIELD • ___ ._ ..... ___ ••••• _._ •. ARCO ENGINEERS .~! •• .Tj.l?l?..i!t:~_ ... DATE .?_,.S .. ;t.? .. 4 .. NOTE: Item No. 1 is on bonom DISTANCE : Rotarv Kellv Bushing to : • __ lL .. inch •• ___ • __ ••• 2QQ9 psi WP FLANGE __ ...zz. •. Q5.. ••••••. tt

ITEM LENGTH DePTH SET )1 No. DESCRIPTION feet FROM RKB (Ft.),

1 9-5/8" Howco super seal float shoe 2 12 4534 111 2 2 jts 9-5/8" casing 40 lb K55 buttress 76 65 4531 99 i 3 9-5/8" Howco Type E super seal float collar 1 75 4455134 I

4 116 jts 9-5/8" cas ing 40 1 b 1<55 buttress 4422 40 4453~59 I 5 I 1 jt 9-5/8" casing 40 lb K55 buttress cut off 31119 I 6 Casing head FMC C22BP-00 13-5/8" 3000 x 11" 5000 1 85 23 90 :

RKB to cas ing head f1 ange 22105 i

: I

I 1 , i ! ,

I Equipment Used I ! I I

I ! , ,

1 I 13 ea 9-518" Howco centralizers ! I

I I I i

2 I 2 ea 9-5/8" Howco stop rings ! I ,

I

3 I 4 ea Howco weld A I I i I ,

4 I 1 ea 9-5/8" top plug i I i

5 I 1 ea 9-5/8" C22 casing hanger i ! I

I , , ,

i I i i I

, I I !

, I i I I I

,

, I i i

: I i I ;

I I ! I

I , , !

I , j

! I ,

i I ! I ,

i I

i 1 , I I

i ,

. . i . i 1

• I :

CAS ING CEMENTING REPORT

RICHTER 8 9-5/8" POEPPELS CORNER *1 lUG: ......... ,. ...................... , CASING SIZE: ............................... , CEMEN'l'ING COMPANY: HOweO • .. • .. .. .. .. .. .. • .. .. .. .. .... CElENT tlNIT.. ............................. TYPE: .. ... J'lT/.iD ............. ..

WELL DATA 12~ 1kO kO

Bole 81ze: •••••••••• , Deviation at TD •••• ~ ••••• , Deviation at laat cag. shoe •• 1 •••••••••

Shoe set at: .~?~~.I MD ••••••• TVD, Last casing !~:~t~ at ••• !?~. MD ••••••• TVD 728 3806 Cased interval •••••• ft., Open hole interval •••••• ft.

CENTRALIZERS : Howeo 13 KaftUfac:ture: : lit............................... ~ .: ............................... Q\laIl. tJ. ty J ................................. ..

40 4527 • 4449 80 4378 • 3850. (a) •••••• ft. spacing from •••••• to ••••••• , Cb) ••••• ft. spacing from •••••• to ••••• (c) 40 ft spacing from 756' to 718 ft.

MUD PROPERTIES: (..Iaae4iately prior to cementing)

PPG VIS PV

9.5 41 19 Bottom up gas

CEMENT DETAILS:

yp 0/10 GEL W.L. TEMP. IN

11 . units, Final low background -........

TEMP. 0l11'.

units.

* BHCT *

: (l.f -measured) •

BHST •

J78.9 • frca Harner log plot

ADDITIVES (WEIGHT) CEMENT MIX FLUID GEL EXTENDER RETARDER F.R. FLUID LOSS OTHER

TYPE G ftIFW HR eFR2

UNITS PPG SX BBL ~~I ~'tU ~fJ.u it"f'leL SCAV. WATER - 40 bbl

LEAD 13.5 330 70 2%ph~ .1% .5%

TAIL 15.8 168 20 - .2% .5%

Cement on rig before job • .lf~!i ax, After job •• 799 SX; Cement used actual ?~9 .. ax, 498 Cement used cale •••••• ax.

JOB TIMES:

OPERATION START FINISH TIME BBL BPH REMAR.KS

CIRCULATING 0600 0900 180 1700 9.5 PREFWSH 0907 0915 8 40 5

• SCAVENGER

* LEAD SLURRY 0926 0948 22 70 3.18

* TAIL SLURRY 0949 0957 8 20 2.5

* DROP PLUG 0958 1003 5

* DISPLACEHEN'T 1004 1058 54 337.5 6.25 Calc .• 338. bbl

• Total jOb time: •••• ;.. hr. '10t5 ~~ •• min, abut down-it. •• \ • • •• min, CIP • .1.Q~~ . Reciprocation atopped ae ••••••• hra., slips set ••• ~ •• hrs. after eIP.

REMARKS:

Plug buaped with • !~~~. psi, Float I h.ld~MlltX~, Volume of cement returns .• -.0.-.. bbl, Returns to surface after .~~~~. bbl displacement, Lost circulation: Y.s~, atter~Q~ •• bbl Displacement. Regained circulation after 70 bbl. lost partial circulation from 194 bbl to end of displacement.

. A. Bradley D • 1 Sen 84 ARII DRLG. SUPERVISOR. •••••••••••••.•• ate ••••• T ••••••••

APPENDIX 13

BIT RECORD


""UHTm aN U • A BIT RECORD -------- ---

1""L~P_184 1·~~"STRA:;A I "CY'~ /,OW:_'~ rANG~ roe"T''''' POEPPELS CORNER

WI,-... NO COUNTY

NORTHERN TERRITORY n CONTRACTOR 1110 NO.

lon"ARCO AUSTRALIA LIMITED I~S;n;H/M. TAYlOR '!: I~ I It:Jl •

RICI!TER DRILLING PTY Ln~ITED 8 1 A. 8RADLEY / P. TIBBITTS S"uo UNOC:_ su .. ,.

UjH~~" 841-T ;~A ~ ;;cs~; ~ ~ PU"~~ ~9-P-I00 LlN""

~u .. ~_, 11 LlNa .. ~u .. ~ ~OWIE. TY,., MUD

21 AUG 84 25 AUG 8( 6\ NAT-G-700 6J.-J5 11 1000/700 Po 1 ymer/ge 1 ORtLL """. s.z. TYPC 0,0 NU .... EI. 0,0 ,,0. LaNa,," CH'AWWO'IU'S POwa: ..

4~" 20 1b/ft TOOL 4~ XH DRILL 8 811 2-13/16" 248 1

1000 JOINTS COLLARS 22 61.:" 2- U116 11 654 1

I SPM MUD DULL, COND, DEPTH ACC.UM WT vlE"Y PUMP GPM FORMATION NO, SIZE MAKE TYPE JET SERIAL FEET HOURS n!N" OIlLG 1000 RPM 32NDI" OUT HR.> L •• DIE" PRESS REMARKS

• I WT vi •. WL T • • aTHa ..

1 17~ HTC OSC 3AJ 11l1~8 MC 645 740 677 24 ~8. ~ _24 I~o 19<110 ,ko .. 500 708 95 55 &9 42 - 1 1 I 2 12\ HTC X 3A 1'14 359 JF 3249 2509 44 ~7 .( 68 I~o 100 1

0 1250 448 121 - 9.3 36 - 4 4 I 3 12\ HTC X 3A ~~~4 119 JF 4540 1291 32 ~O. 100 P3b 100 1~ 1350 407 UO - 9.6 40 - 6 6 I

RR2 12\ HTe X 3A OPEN 359 JF 4540 - 0- -0- O- Wl ~ER T ~IP 500 660 90 40 9.6 56 5.0 4 4 I 4 ~ HTe JD4 ~9~ 042 DF 4650 110 6 18. : 106 f25 75 - 1400 246 70 - 9.4 35 10.0 4 3 I 5 8~ I HTC J22 ~9~ 904 AS 5664 1014 23 ~4 .. 129 25 I/U75 1~ 1850 263 751- 9.lf 35 7.0 N Rt'J. I>S ~ti2 61 8~ I HTe J22 999 766 KL 6506 842 25 ~3. j 154 25 75 20 1700 246 70 9.3 39 6.5 R R I l~i Jl~ 7 8la HTC IJ33 909 035 AG 6551 45 2 g2. ! 156 20 70 20 500 246 70 9.3 43 8.5 R R I ~s \?; ~g~ile

RR7 8la HTC .J33 ~99 035 AG 6938 387 22 ~7. t 178 rJS 7°65 2~ 1800 246 70 ' 9.3 38 7.0 N R rt LSQ 12: 8 8~ HTC 'J33

I 99~ 036 AG 7421 483 24 20. aJ2 35 70 2\ 1800 246 70 9.3 39 7.0 N R 'a!i IJl~

91 8~ HTC --.J44 999 328 GS 7829 408 491.: 8.2 251~ 37 60 1\ 1900 246 170 19.2 4~ LA Ji lit l:f c~£C 3 10 1 8~ : HTC :J44 999 I 329 GS 8344 515 63 8.2 314~ 35 60 MR 1900 246 70 : 9.3 38 7.5 N R ( E '51=2 AI~~lih I 11 8~ HTC IJ33 19109 037 AG 8490 146 17~ 8.3 332 30 65 14 1700 246 70 : 9.3 38 7.5 R R I SQ 12~ Ilfo~'1:~re

CHI 8!~2 CHRIS C 201 IOT~~ 1430941 8500 10 6 1.67 338 28 90 - 700 225 64 9.3 39 7.6 R R I ~~~n

BUTT ~ BIT ( ONO IT ION HR = Not Re unable BT = Broken T eth SF = Se ls F i1 d 1 = Con RR = Reruna le IH = Inner He 1 row BF = Be ring Fa led 2 = Con ~

I = In gau e H = Heel row SE = Se ls E fe the 3 = Con ~

WT = Worn T. eth M = Middle r ~w CC = Cr cked Co e WG = Worn G( uge

I SQ = Seals Qu ~stion flble

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