COUNTY: CORSON

LEGAL LOCATION: NWNW 16-21N-19E

API NO: 40 031 20023

PERMIT NO: 1065

WELL NAME: COCKRELL #1-16 STATE

OPERATOR: COCKRELL OIL

CORPORATION

PERMIT ISSUED: 02/20/1981

PERMIT CLOSED: 05/14/1981

FILE LOCATION: 21N-19E-16 NWNW

TARGET CODES:

WELL HISTORY / CHECKLIST

PERMIT TO DRILL / INTENT TO DRILL

WELL INSPECTION / SCOUT REPORTS

OPERATOR’S TECHNICAL REPORTS / MAPS

ADMINISTRATIVE / SUNDRY REPORTS

CORRESPONDENCE

MISCELLANEOUS

WELL HISTORY / CHECKLIST

PERMIT CHECKLIST

CocKgelCit IC:, 1 Srivr& Nik.imik) te--2-ik i-icle

to 6 , 0 F JAR_

& (,cp in IQ (---

Permit # /6,6r

An# 0 03/ -2- 002.3

Surface Bond # / 2._CD c) e

Plugging Bond # / -LC> e>

Paperwork filed with WFO

V Organization Report

V// Application 4-171- l'%-r

Bond

I/ Plugging & Performance Bond

Additional Surface Restoration Bond when required

tei Permit Fee

%/Certificate of Negotiation, when required

The following papers sent to operator:

11// Permit (Form 2a)

//Receipt for $100 permit fee

Cover letter explaining material sent

Permit Fee Filed:

Permit fee w/Cash Receipts Transmittal Form sent to State Treasurer

Notification of New Permit sent to: L/' State Geologist

Secretary, Department of Water & Natural Resources

4-//Commissioner of School & Public Lands

L-4/ounty Auditor

Date 9 4+ g ( Checked by

Well Name and Loc tion

K /‘- —( kjv.INvki 7--1N

&C,C) FWL- C60 FAIL--

Bond # F Date Issued Date Release z „

Permit # / 06-C: -

API # zit) 03/ 24:len,*

BOND RELEASE CIECKLIST

Surface Restoration

1/Fits filled

L/Site Level

V/. Site policed

Dry-hole marker solid, sealed, correctly inscribed

t/No dry-hole markerdesired,- letter in WFO files from surface owner

troz. r /nt-i) k) c__ OA) _S-ct /2_61-e C 6.)c

Paperwork filed

Form 4 ( Completion or Recompletion Report)

1%/Form 6 ( Sundry Notice and Report on Wells)

V/Form 7 (Plugging Report)

Geological Information Filed

‘,/' Well Logs: IES, SNP,DIL PR, NFUT, CALIP, Cement Bond, Temp, Micro, Laterlog, SM Dens. ,„

_je!:. DST Charts and Reports

v/ Geologist's Report

Results of coring and core analyses (I &Ai) v///Set of 10-foot sample cuttings (Check with Bob Schoon)

Date

PERMIT TO DRILL / INTENT TO DRILL

State Pub. Co., Pierre S. Dak. Oil & Gas Board FORM 2 APPLICATION FOR PERMIT TO:

ZONE

FARM OR LEASE NAME

South Dakota State

Egi DRILL • DEEPEN • PLUG BACK

• SINGLE ZONE WELL NO.

16 - #1 • OIL WELL • GAS WELL • MULTIPLE OPERATOR

Cockrell Oil Corporation

FIELD AND POOL, OR WILDCAT

Wildcat ADDRESS

999 The Main Building, Houston, Texas 77002 NO. ACRES IN LEASE

640

LOCATION (In feet from nearest lines of section or legal subdivision, where possible)•

660' FWL & 660' FNL SEC. 16 - T21N - R19E

1.4. 14 SEC. TWP. RGE

CNW NW SEC.16-T21N-R1

COUNTY

Corson NAME AND ADDRESS OF SURFACE OWNER

William H. Macheel & Lyla L. Keldron, South Dakota

ELEVATION

2320.8 NO. OF WELLS ETC.

None PROPOSEp DEPTH 8000

ROTARY OR CABLE TOOLS Rotary

NAME AND ADDRESS OF CONTRACTOR

Bomac Drilling Suite 700, Westland Bank Building 10403 W. Colfax Ave., Lakewood, Colorado 80215

APPROXIMATE DATE WORK WILL START

3-15-81 IF LEASE PURCHASED WITH ANY WELLS DRILLED, FROM WHOM PURCHASED (Name and address)

PROPOSED CASING AND CEMENTING PROGRAM

SIZE OF HOLE SIZE OF CASING WEIGHT PER FOOT NEW OR SECOND HAND DEPTH SACKS OF CEMENT

20" 16" 65 New 40' 50 12-1/4" 8-5/8" 24 New 2,000' 1000 7-7/8" 5-1/2" 15.5 New 7,800' 900

DESCRIBE PROPOSED OPERATIONS. IF PROPOSAL IS TO DEEPEN OF PLUG BACK, GIVE DATA ON PRESENT PRODUCTIVE ZONE AND PROPOSED NEW PRODUCTIVE ZONE. GIVE BLOW OUT PREVENTER PROGRAM IF ANY

Will drill conductor hole to + 40' with Dryhole driller. Set 16" Csg. with 50 sks Cmt. Move in Drilling Rig. Drill to + 2,000' w/12-1/4" Bit. Set 8-5/8" Csg. and circulate Cmt. back to surface. Drill-7-7/8" hole to TD with freshwater mud. If producer, will set 5-1/2" Csg. and Cmt. back to bottom of surface casing. A Schaffer Type B 10" - 3,000# double gate with 3 valve clos'ritinir,will be installed on 8-5/8" Csg.

.47a

f.t)

9E

-‘? .

r)

S.s") Q -0 1- Es,

449°. G.? c")

‘0,

7 aTmlials. Production Engineer TITLE SIGNE

DO NOT WRITE BELOW THIS LINE

ERMIT NO _ _ J IT NO.

DAT; APArg.f., DATE

El COMPLETE SET OF SAMPLES, AND CORES /F T EN, MUST BE SUBMITTED.

SAMPLES, AND CORES IF TAKEN, BELOW DEPTH, MUST BE SUBMITTED.

SOUTH DAKOTA STATE GEOLOGICAL SURVEY

WESTERN FIELD OFFICE

__PLE3 2 0 1981 CKED BY

Public Lands Date

, Seszetzer

R. 19 E. \-- mos-1

T 4-isTATE LNE AREA X

COCKRELLI-AQIP-Sla STATE ELEV. 2320.8

T. 21 N.

SCALE 1":10001

JAN.30,1981

SURVEYOR'S CERTIFICATE I, Harley Slc2nson, of Bismarck,

North Dakota, hereby certify that this map was made from notes taken during an actual survey made under my direction on Janaury 28, 1981 and that it shows correctly the drilling location of the State Line Area X Cockrell-Agip, SD State #1 as staked on the ground duri g said survey.

SY/A- \.—

','EwsTERF0 \,-= Harley E. wenson PRG'LsulA, \ Registere Professional

Fs.i;INtER i Engineer and Land Surveyor -41 )41D Registration No. 2171

rOti )1,RVEYOR (

951

C)191-fq Dk‘iCe

MAP SHOWING DRILLING LOCATION

OF THE ST E LIN E AREA X

COCKRELL- AG I P S.D STATE 4* I

NW 1/4 NW 1/4 SEC 16 T 21 N. R. 19 E.

BLACK HILLS MERIDIAN CORSON COUNTY SOUTH DAKOTA

FOR COCKRELL OIL CORP OWL ENSINIEERING LANO PLANNING LAND SURVEN'IN•

SWENSON, HAGEN & CO. P.C. Consulting Enginors

PO BOA 1135, 909 BASIN AVENUE BISMARCK, NORTH DAKOTA seso,

708-M-ES00

, 19 day of

ARY PUBLIC - Jane T. Schenck

STATE OF SOUTH DAKOTA

DEPARTMENT or WATER AND DIVISION OF NATURAL RESCVRCES

GEOLOGICAL SURVEY OIL GAS FORM 9

CERTIFICATION OF NEGOTIATION WITH SUFtFACE OWNER OR LESSEE

/, GEOFFREY R. PIKE

LANDMAN (position)

(name of individual)

with

COCKRELL OIL CORPORATION hereby certify that, to the best of my (company)

knaeledge and belief, an agreement regarding compensation for damages to livestock

and surface land resulting from drilling operations on the following property:

SEC. 16: T-21-N - 11.19-E, CORSON COUNTY, SOUTH DAKOTA , has been or is being (property for which permit is requested)

negotiated with the surface landowners or lessees, as listed below:

WILLIAM H. MACHEEL AND LYLA L. MACHEEL (surface owners/lessees)

SEC. 16: T-21-N - R-19-E, CORSON COUNTY, SOUTH DAKOTA

(land area)

Dated and signed this 5TH day of FEBRUARY

, 19 81 .

-/-1146

(Individua

for COCKRELL OIL CORPORATION (name of company)

Signed before me this

c-Tslit25262749_, ' Zbeddoc4

c ) Crigid 03 Nt ' ' !..z ■LS:, .4 .-.>

r....) .11 z; ..0, , -.( L.' C-1, . , -

NJ (&)

t?" /Ogg 41 -A. VP' Cr) \‘:;1,4 NI

,Lommission Expires: .2- 4- g3/4

WELL INSPECTION / SCOUT REPORTS

SCOUT REPORT

Well Name: Location: Directions: Permit Date: Permit #: Spud Date: Elevation:

Cockrell #16-1 State 21N-19E-16 NWNW, Corosn County 660' FNL and 660' FWL 2-20-81 1065 4-6-81 2320.8

API: 40 031 20023 Plug Date: 5-1-81 Total Depth: 8045

DATE 7-9-81 11-23-81 6-20-83

Dry Hole Mark 0 0 0

Marker Correct 0 0 0

Marker Sturdy 0 0 0

Marker Capped 0 0 0

Fences Up N/A X N/A

Pits Back Fill 0 0 X

Site Leveled 0 X X

Site Smoothed 0 0 X

Site Seeded 0 0 X

Site Clean X X X

Roads Reclaim 0 0 NA

Approved by

Not Approved KEF, BB WES MNS,WES DWE

Remarks: 64-81: Site in process of being leveled. 7-9-81: Site needs a bit more leveling and smoothing: according to Chris Hoff ( the dirt

man) the farmer is willing to seed; road is to remain; no dry hole marker on site. 5-1-81: 340' supply well was drilled 255' north of oil test. No cement around casing.

Water test approximately 450 ppm TDS & low calcium. Land leasor requests the road and well be left.

1-7-82: In letter also asked for two copies of all geologic data. 8-5-82: Telephoned Larry Tschirhart, he said he would look at site, fix and let me know

when to re-inspect. 12-30-82: Chris Hoff phoned to say site OK now but I think we should wait until the

ground is thawed in spring and then re-inspect..

A

-41 - '34/

OPERATOR'S TECHNICAL

REPORTS / MAPS

c st„, A T-14-11 0, / n

as' Fr 75 f

Formation Testing Service Report

IR/

CTI

1I0 11

321)13

00

-13 CD 70

IS VI

ONVO

HMOS

rrl

HAIIMUR10111 SERVICE&

LIJ

111 LIS Cie O.

o 64 2-J s2- 3 /

Sket 41) cf,

Each Horizontal Line Equal to 1000 p.s.i.

FLUID SAMPLE DATA Ticket Date 4-18-81 Number • 064228

Sampler Pressure 5 P S I G at Surface Kind Holliburton of D.S.T. OPEN HOLE Location GLENDIVE Recovery: Cu. Ft.

cc. Oil

cc. Water

. cc. Mud

Tot. Liquid

Gravity

Gas

C.E. DORMODY-D. POPE Tester ROBERT ZINDA Witness BILL ROSE 2100

Drilling . Controctor BOMAC # 32 DR - cc2100

• API @ *F EQUIPMENT 8 HOLE DATA

Gas/Oil Ratio cu ft /bbl

All

Formation Tested Mission Canyon .

Recovery Water

Recovery Mud

Recovery Mud Filtrate

Mud Pit Sample

Mud Pit Sample Filtrate

RESISTWITY CHLORIDE

.84 79 6100 @ °F

CONTENT

Pam

PPrn

port

ppm

Elevation 263w Ft . Net

Total

Productive Interval

Depths Measured

201 Ft

From KP-I ly BPS hing .58 79 "F 15000 _ @ 5402' Ft .48 79 .F20,000 @ Main

Drill

Drill

Packer

Depth

Hole/Casing

Collar Length

Pipe Length

Depthls)

Size 7 7/R"

.40 @ 55 •F 2_,LQ(.10_-__pprn gni I D_P 1/8" 3.836" • 25 @ 55 °F 3 , 200 4775' io

5329-5337' Ft

Mud Weight . vis sec. Depth Tester Valve 5312' Ft

TYPE AMOUNT Depth Back Cushion Ft. Pres. Valve

Surface Bottom Choke 1/4" Choke 3/4"

Recovered 470 Feet of Mid

Recovered 678 Feet of water

r ( I

Mo. Fro

m Tester

Yoh

Recovered Feet of •

Recovered Feet of

Recovered Feet of

Remarlcs SEE PRODUCTION TEST DATA SHEET

TEMPERATURE Gauge No. 4312 Depth: 5313 Ft.

Gauge No. 675 DePth: 5399 • Ft.

Gouge No.

Depth: Ft.

. TIME

100:00-24:00 hrs.)

Est. 'F.

24 Hour Clock 24 Hour Clock Hour Clock Tool

Opened 13:78 Blanked Off NO Blanked Off Yes Blonked Off

Actual 145 'F. Pressures Pressures Pressures

Opened

Bypass 1 : 28

Field Office Field Office Field Office Reported

Minutes

Computed

Minutes Initial Hydrostatic 2666 2591.2 2720 2628.3 Initial 45 42.6 45 109.8 •-.8 Flow

li Final •

359 375.2 320 414.1 30 30 Closed in 2402 2395.6 2450 2430.1 30 29

Initial =0 Flow

404 -- 404.4 366 448L5 at Final ri. 584 584.2 595 620.1 30 31 „,.

Clowdin 2358 2397.8 2360 2430.1 30 30 Initial

218 Flow ._ .2 g Final i-a.

Closed in

Final Hydrostatic pfi 66 2564 8 ' 2675 2605 8

Ln CZ)

rel

3a

CT V

V

5

C-) 7C 7D

r- r—

• r-

V) 70

3 CZ) 70

7C CD

FORMATION TEST DATA ORM 181-112 NUNI1110 U.'S W OUS

Casing perfs Bottom choke Surf temp •F Ticket No 064228 Gas gravity Oil gravity GOR

Res @ •F Spec. gravity Chloride ppm

INDICATE TYPE AND SIZE OF GAS MEASURING DEVICE USED

Date

Time chim P.M.

Choke

Size

Surface Pressure

Psi

Gas Rote MCF

Liquid Rote BPD

Remarks

13:78 Opp d tool with immediate 1" blow.

13:35 6 1/2" blow

13:39 12" blow

13:58 16" blow

13:58 Closed tool

14:15 6" blow

14:28 Opened tool with 3" blow

14:55 15 "blow

Closed tool with 14" blow 14:58

15:28 9" blow

15:28 Started off bottom with tool

PRODUCTION TEST DATA

LITTLE 9.5672 5M II/74 (CI

i < I- < 0

W

fr D

U

) ' (f) w

w

a. -J < U

W

a. (f)

Third Closed In Pressure

%"0) -atual DIS.3

kluge No. 75 Depth 5399' C lock N . hour 24

F

somigol salnuttu 9-4* avalla I-4 :sxawnal

Tkket 064228 . No.

0 lonawit

Third Flow Period

'flop

DISd

anot1 .173

now loaawu

Clock No.

%nog -away DISd

I Z'178S 0•9SIZ

[2287. 9 23 31. 8 I

I1 353. 8 1 riyigE3

2375. 8 I 12 382. 4 I 1 8.98EZ

1 0'68E3

2391. 2 1 2393. 4 j 2395. 6 1 2397. 8 j 2 397. 8 I I 8.L6CZ

- 1'039

2245. 5 1 2331. 0 1 9LEZ

[1'46E3 I 9.LOtiZ riPTITti

24 21. 1 1 1 114•EZVZ

242 5. 6 1

1 FOE173_

2430. 1 II 2430. 1 I 11 • 0£173

I'OEtZ

CN

I

Second ssed In Press.

0 A,,I

1

Tirne Defl. AV"

000' 8900' 9E10'

n-tozo* ZLZO' Ot£0. 80t10. 9LVO• bbS0' ZI90' 0890'

netLo• 9180. tr880. ZS60' OZOT.

1 000'

I 9EIO' turn

1 ZLZO' F 017£0.

80tO• 9LtrO' trI2S0' ZI90' 0890' ma •

1--9180' ] teso*

Z960. 13Z0 •

,EIES 44daa

1 Second

Flow Per iod

%wog 'away 01Sd

trt10.0 6Z17]

9.0917

S'EZS C'LSS Z•t8S

I s*stvl I 6.6StI j Z..176tI

1

I citzs 1 U8SS

0'885 j I'039

LC

/

000' 4*S6I0'

8SCO• IZSO'

1 b890' Ltso- OIOT•

000•I .**60Z0'

E8E0' L990•1 ZELO'l

1 9060'1 I 080T'

1 :cia • DISd ,

1 Z'CLC j 9'9SLI 1 6'66IZ

231 4. 2 23 34. 0 2356. 0 j O'L9EZ

23 78. 0 2382. 4 I 8'98EZ

j Z'I6EZ

2393.4 239 5. 6 I 9'56EZ

23 9 5. 6 1 23 95. 6

j UttIt7 j 8'690Z 1 l'6LZZ

I

2346. 8 I 2382. 9

I I

2400. 9 I j 6160.17Z 9'91.12Z

2423.4 1 2425. 6 1 2427. 9 I I T'OCte

2430. 1 1 2430. 1 1 2430. 1 2 4 30. 1 I

C•J

I

ZIEtt 96'0

First osed In Presst

I 0 I ,,000" 1130

000' 47E00'

ZOIO' ILI°. 6EZO' LOE0' SLE0'

I Z1 Oc 6.1790' LILO' S8L0' ES80' Z360' 0660'

000' titSCOO'

tOTO' ELIO' ZtrZO' ITEO• 08£0. 617b0. LBO' [890• SS90- SZLO'

L_t6L0' 1 Z980' IC60' 000I•

an° tool DISd

9.Z17 8'SZI

1 Z•6ZZ 1 9183 1 E'ZIE 1 8'EtE j Z.SLE

j8'601 S'6EI

IS't/LZ

1

0.8IC 1E'ZSE It't8E

1

I

I

1 Reading Interval 5

First Flow Pe

Time De f l.

000'

1 LEE0' I SOSO' ! EL90'

Z1780' 0I0I'

I 000- 1 LIO' I 'KO • I ISO• I 890' I S80' I ZOI'

Lo__1

1AJ

VI] LEu

11

[LI

..-

j

11.]

16_1 iL)11

piu

TICKET NO. 064228

O. D. I. D. LENGTH DEPTH

Drill Pipe or Tubing

Drill Collars

Reversing Sub 6 1/2 2.50 41 11 90' UP

Water Cushion Valve 4 1/2" 3.826" 4775' Drill Pipe

Drill Collars raw 6 1/4" 2 3/8" 524' 6 1/2" 2.50 " .65' Change over

Hondling Sub Choke Assembly

Dual CIP Valve 51 1 .75" 7' 5301'

Dual CIP Sampler q,11 .75" 5' 5312' Hydro-Spring Tester

Multiple CIP Sampler

Extension Joint

AP Running Case 5" 2.25 " 4' 5313'

Hydroulic Jar 5 1 1 1.75" 5'

VR Safety Joint 5-II 1" 2.75' Pressure Equalizing Crossover

Packer Assembly

Distributor

Packer Assembly

Flush Joint Anchor '41 Pressure Equalizing Tube

Blanked-Off B.T. Running Case

Drill Collors

Anchor Pipe Safety Joint

7" 1.53 " 6' 5329' Packer Assembly

5" 1.68" 2' D tnbutor

7" 1.53" 6' 5337' Packer AssernblY

Anchor Pipe Safety Joint

Side Wall Anchor

Drill Collars

511 2.37 " 61' Flush Joint Anchor

511 2.75 " 4' 5399' Blanked-Off B.T. Running Case

Total Depth 5402'

MillA 167-42-FILMWMU.SA

EQU I PMENT DATA

LIT11.11

NOMENCLATURE

b = Approximate Radius of Investigation ' Feet

b = Approximate Radius of Investigation (Net Pay Zone ht) Feet

D.R.= Damage Ratio

El = Elevation Feet

GD =_. B.T. Gauge Depth (From Surface Reference) Feet

h = Interval Tested Feet

h , =. Net Pay Thickness Feet

K = Permeability md

K , = Permeability (From Net Pay Zone Im) md

m Slope Extrapolated Pressure Plot (Psii/cycle Gas) psi/cycle

CFI = Maximum Indicated Flow Rate MCF/D

OF2 = Minimum Indicated Flow Rate MCF/D

OF3 = Theoretical Open Flow Potential with/Damage Removed Max. . MCF/D

OF4 = Theoretical Open Flow Potential with/Damage Removed Min. . MCF/D

p s = Extrapolated Static Pressure Psig.

p F = Final Flow Pressure Psig.

p = Potentiometric Surface (Fresh Water `) Feet

0 = Average Adjusted Production Rate During Test bbIs/day

Q = Theoretical Production w/Damage Removed bbls/day

0 g = Measured Gas Production Rate MCF/D

R = Corrected Recovery bbls

r = Radius of Well Bore Feet

t = Flow Time Minutes

t = Total Flow Time Minutes

T Temperature Rankine •R

Z = Compressibility Factor

= Viscosity Gas or Liquid CP

Log Common Log

* Potentiometric Surface Reference to Rotary Table When Elevation Not Given, Fresh Water Corrected to 100' F.

r 6alt-f

DRILL STEM TEST

TECHNICAL SERVICE REPORT

••11The

_- or I 41.

":•!

:..4,21 I

7...10,1

ii "C.'"AN.

-11*

'7"z>

LYN ES

Kuster AK-1

E

SASE LINE OR ZERO PRESSURE

Kuster K-3 A

N

PRESSURE CHARTS LYNES

GUIDE TO INTERPRETATION AND IDENTIFICATION OF

LYNES DRILL STEM TEST PRESSURE CHARTS

In making any interpretation, our employees will give Customer the benefit of their best judgment as to the correct

interpretation. Nevertheless, since all interpretations are opinions based on inferences from electrical, mechanical or other measurements, we cannot, and do not, guarantee the accuracy or correctness of any interpretations, and we shall not be

liable or responsible, except in the case of gross or wilful negligence on our part, for any loss, costs, damages or expenses

incurred or sustained by Customer resulting from any interpretation made by any of our agents or employees.

AK-1 recorders. Read from right to left. K-3 recorders. Read from left to right.

Time Time

A — Initial Hydrostatic

B — First Initial Flow C — First Final Flow

D — Initial Shut-in

E — Second Initial Flow F — Second Final Flow

G — Second Shut-in

H — Third Initial Flow I — Third Final Flow

J — Third Shut-in

K — Final Hydrostatic

\V

Very low permeabili y. Slightly highe perme- Slightly higher perme- Average permeabili y. Average permeability. Usually only mud recovered ability. Again usually ability. Small recovery, Final and initial shut- Strong damage effect. from interval tested. Vir- mud recovered less than 200 ft). ins differ by 50 psi. High shut-in pressure, tually no permeability. low flow pressure.

Excelent permeability where final High permeability where !SIP Deep well bore invasion or dam- flow final shut-in pressure. and FSIP are within 10 psi. age. Final shut-in higher than

the initial shut-in.

Tight hole chamber tester. Permeability very difficult to interpret unless the re-covery is less than chamber length. Flow pressure builds up rapidly if recovery is large, similar to a shut-in.

D.S.T. Report Distribution

HALLIBURTON

FORM ISODR3

A Division of Halliburfon Company

DUNCAN, OKLAHOMA 73599

Cock r en oil Car Pon ri on Company Name - • Lease Owner

Requested Distribution of Completed D.S.T. Report Folder

for Ticket No. 014 (This Order Must Be Filled Out and Signed By Company Representative)

Company COCH tid re v Pero 7, Orig. Char

C 5•fic CS TR. .

STREET G NCEII re rn e i tiallh$ tir BUILDING

VrrAYTE ft 14 .3 7 - - CY & Reports

ZIP CODE NUMBER

company GrP P e.reivo..to eey,. rive,

AT T.Aer- Henn" S- e-I P.O. BOX

15317VITN: brio 0 0 a 5 Law s,t, -3.1

Reports ',.TAYTE,rii-t, 5Tc., r trc s ZIP CODE NUmBER 77e, z 7

Company

ATT.

P.O. BOx r STREET & NO.

BUILDING

Report CITY STATE

ZIP CODE NumBER

Company

AT T.

P.O. BOX STREET NO. BuILDING

Reports STATE

Zip CODE NuMBER

Company

ATT.

Reports

STREET IS NO.

BUILDING

CITY

STATE

ZIP CODE NUMBER

Owner - Operator - or His Agent

SIGNED , Agent

Send 1st, 2nd and 3rd Copy with Charts

(Use Additional Sheets When Necessary)

. 2 g I h 41

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11$4: Li E

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Pressure P.S.I.

?S) Z.

I ri

o z 0 -.V fit

0 9 L,"3.

le: L

\

\S ce•

Est imated Gauge

Depth Temperature I Thousands of Inch

0 / .

4. S

I

1 Device Pio. 6 73--

Gauge Depth if:3 ,7 , Ft.

Or Initial Hydro. Mud Pressure

Initial Flow I Pressure

Final Flow Pressure

First Closed . In Pressure Initial Flow Pressure

Final Flow I Pressure

-;

Second Closed In Pressure Initial Flow Pressure Final Flow Pressure Third Closed In Pressure I

Final Hydro. , Mud Preuure

. PuZ

WC

::

1 0 ti

0 .

Z

- :8

d A

et

A et

A

}-■ pi a

ce3

1 1

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Thousands of Inch Pressure P.S.I. 0 e

._9 ri Arr.

17.2 3gt

g

1 E g

A

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e. 4 e •

a 2

CL

IC1C

a h

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:5' ▪ 0

OU

OA

o

o 01.1

PAC

1:

pia

g2 42,

'0 A AI A

H

4

kg, v.

Ma

tee .9 IltX

4

.t sh a

El 5 in

0.,4

to

to u.r..1 tam

g ea R

g121 A

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tt V V

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as:

Phone 713-790-9132 LYNES, INC. Box 12486

Houston, TX 77017

Top Choke

Bottom Choke

Size Hole 7 7/8"

Size Rat Hole —

Size & Wt D P 4 1/2" 16 . 60

Size Wt. Pipe

I D of D C 2 1/4" Length of D C

Total Depth

Interval Tested 5670-5710' Type of Test Bottom Hole

Conventional

Flow No. 1 30

Shut-in No 1 30 Flow No. 2 30 Shut-in No. 2 30 Flow No. 3

Shut-in No. 3

146o

F 9 . 2

38

Tool opened @ 9:17 AM

Outside Recorder

PRO Make Kuster K-3 No. 3087 Cap 8400 @5704'

Press Corrected

Initial Hydrostatic A

2783 Fmal Hydrosta lc 2731

W Flow 291 F nal MI Flow C 537 Mmal Shu

•

2581 Second Ini ial Flow E 519 Second Fmal Flo F 611 Second Shu n

•

2582 Third Mitial Flow H

Third Final Flow I

Third Shut-in

Lynes Dist • Dickinson, N.D.

Our Tester• Pat Ruggles

Witnessed By'

Is 0 • '0

co 0)

= W 0 O 0 0 O 1-n w x

m o m g I—. • 0

0 H n • o x w m .

z J 11) 0 P-O

a

r- w

Hi 2 6

0

6

w m

0 w rt

M 0

Contractor Bomac Drilling Rig No 32

Spot NW-NW

Sec 16

Twp. 21 N

Rng 19 E

Field Wildcat

County Corson

State

South Dakota Elevation 2331' "K.B." Formation Todgepole

1/4"

3/4"

Did Well Flow - Gas No oil No Water No RECOVERY IN PIPE

1426' Black sulfur water = 15.35 bbl.

527' 5710

Min

Min.

Min

Min

Min

Min

Bottom Hole Temp

Mud Weight

Gravity

Viscosity

T8-0

Z—

V al

e0

Top Sample R.W.: Middle Sample R.W.: Bottom Sample R.W.:

.8 @ 69 F = 7800 ppm. C l.

.9 @ 71 F = 6800 ppm. Cl. 1.0 @ 71°F = 6000 ppm. Cl.

S s

alcl

oo

l eu!d

'o

N

Tool opened with a 1" underwater blow; increased to bottom of bucket in 23 minutes and remained thru flow period.

Tool opened with a 1/2" underwater blow; increased to bottom of bucket in 20 minutes and remained thru flow period. After shut-in blow died in 15 minutes.

Blow description: 1st flow:

2nd flow:

LY-230

LYNES, INC.

Cockrell Corp. State #16-1

3 Operator Well Name and NO.

OST No.

.'"!`" ' ■

Outside Reco Kuster K-3 PRD Make

No 21063 cap 8000 Press

Initial Hydrostatic A

F inal Hydrostatic

Initial Flow

Final Initial Flow

Initial Shut-in

Second Initial Flow E

Second Final Flow

Second Shut-in

Third Initial Flow H Third Final Flow

Third Shut-in

Pressure Below Bottom • Packer Bled To

rder

@56501 Corrected

2747 2709

258 507

2539 493 584

2540

PRD Make

No Cap Press Corrected

Initial Hycirostatic A

Final Hydrostatic

Initial Flow

Final Initial Flow

Initial Shut-in

Second Initial Flow E

Second Final Flow

Second Shut-in

Third Initial Flow H

Third Final Flow

Third Shut-in

Pressure Below Bottom Packer Bled To

LY-232

WELL NAME: STATE 16-1

• DST :JUMPER: 003

kEcoRDER /JUMPER: 003087

INTERVAL TESTED: 5670FT

RECORDER DEPTH: 5704.000FT

TOTAL FLOW TIME: 30.0MIN

TO 5710FT

FIRST SHUT IN PRESSURE (LIQUID)

TIME (MIN) (Ti-PHI) RRESSURE - PHI /rHI (p.m

.0 '0000 . 537.0 1.0 31.0000 ' 2532.0 2.0 14.0000 2553.0 3.0 11.0000 264.0 4.0 2.5000 2E67.0 5.0 7.0000 2571.0 6.0 4.0000 2574.0 7.0 5.2257 2576.) 8.0 4.7500 2577.0 9.0 4.3333 2578.0 10.0 4'.0000 257?.0 12.0 S.:1::0;) ;-_-,:--:..-::- 14.0 3.142? 2521-0 16.0 2.8750 2:i21. 13.0 2.6667 2521.0 20.0 2.5(Y00 2:-,21,0 t 22.0 2.3626 2501.0 ;I: 24-0 2.2500 2521.: 4 26.0 2.1532 2521,0 :1- 28.0 2.0714, 2581.0 * 30.0 2,0000 2581.0 *

VALUES USEDAN HORNER ANALYSIS

SLOPE: .00000 PSI/CYCLE

EXTRAPOLATED PRESSURE: 2581.0 PSI

.0 1.0 2.0 3.0 4.0 5,0 6.0 7.0 8.0 9.0

10.0 12.0 14.0 16-0 18.0 20.0 22.0 21.0 26.0 28.0 30.0

.0000 61.0000 31.0000 21.0000 16.0000 13,0000 11.0000 9.5714 8.5000 7,6667 7.0000 .5-0000 5.2B5.7 4.7500 4.33Z3 4.00Q0 3.7273 3.:,!)00 3.3077 3.1429 3.0000

611.0 2536.0 2556.0 2f,“.0 2571.0 2,574.0 2577.0 25?S'.0 2580.%; 2581.0 2581.0

2522.0 25S2.0 2:3:,'

2562.0 * 2582.0 * 2582.0

WELL NAME: STATE 16-1

DST NUMBER: 003

RECORDER NUMBER: 003087

INTERVAL TESTED: 5670FT

RECORDER DEPTH: 5/04.000FT

TOTAL FLOW TIME: 600MIN

TO 5710FT

SECOND SHUT IN PRESSURE (LIQUID)

TIME (MIN)

(T4PHI)

FRESSURE PHI

/PHI

(PSI)

* VALUES USED IN HORNER ANALYSIS

SLOPE: .00000 PSI/CYCLE

EXTRAPOLATED PRESSURE: 2522.0 PSI

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0

LYNES, INC. Sampler Report

Company Cockrell Corp: 4-20-81 Date

Well Name & No State #16-1

Ticket No 34076

County

Corson

State South Dakota

Test Interval

5670'-5710'

DST No 3

Total Volume Sampler: of 2100 cc

Total Volume Sample• of 2000 cc

Pressure in Sampler• 45 psig

Oil: None cc

Water: 2000 Black sulfur cc

Mud: None cc

Gas: None cu ft

Other• None

Sample: 1.7 @ 69°F = 3500 Dpm. Cl.

Make Up Water R •W •

Resistivity

2.8 71o

F of Chloride Content 2000 ppm.

Mud Pit Sample R•W• 2.8 @ 69o

F of Chloride Content 2100

. .

ppm.

Gas/Oil Ratio Gravity °API @ op

Where was sample drained On location

Remarks•

NOMENCLATURE (Definition of Symbols)

• = average production rate during test, bbls./day

0, = measured gas production rate during test, MCF/day = permeability, md

h = net pay thickness, ft. (when unknown, t t interval is chosen)

• = fluid viscosity, centipoise

• = compressibility• factor

Tr = reservoir ternperature, ° Rankine

m = slope of final SIP buildup plot, psig/cy.cle (psie/cycle for gas)

= approximate radius of investigation. feet

re, = wellbore radius, feet

= total flowing time, minutes

• = Extrapolated maximum reservoir pressure, psig

P, = final flowing pressure, psig

= productivity index, bbls./day/psi

Pit = theoretical productivity index with damage removed, bblIday/psi

D.R. = damage ratio

E.D.R. = estimated damage ratio

AOF = absolute open flow potential. MCF/D

AOFt = theoretical absolute open flow if damage were removed

• = subsea depth

W = water.gradient based on salinity

H. potentiometric surface

INTERPRETATION CALCULATIONS (OIL/WATER) AVERAGE PRODUCTION RATE DURING TEST

Q = IMO (doll collar coon: et:pa cape, ■ recovery/

ft.

Cdceorierion)

rcriveryfm-hielfrn„roll

= 1440 n 11. ) + / 11 11

I 1 + I = 1440 1.0145 0,007311 /

1 / . bbls./d•Y

1

erm ro, .Icenir

FLUID PROPERTIES

API Gravity @ yr F • Spectic Gm

Est:Need SOMNII Hoo Temperature •

@ eV F. Et. vIvomy c

TRANSMISSIMUTY

M . 162.60 v 162.6 ( 1 md.tt/cP •

• In I 1

IN SITU CAPACITY

lb = 1 11 md.M.

AVERAGE EFFECTWE PERMEABILITY &limited Pay Thickness Ft. Attu/. Pay Thickness H.

I .. ffid.

-1-

PRODUCTIVITY INDEX

1 / = bbliderps1

P, - 1/ I / — I •

DAMAGE RATIO

DR. - 0.013 IP, PX = 0.163 (1 1 — ( 1) •• 1 1

PRODUCTIVITY INDEX WITH DAMAGE REMOVED

/ 1 hbl ida.y.psi

APPROXIMATE RADiUS Of INVESTIGATION

ft b = VG; m 11 1 =

Droterlotrn Factor . I.S.I.P., F.S.I p.. leo= I I — I I • 0D3 - '4027,.:.(:rt4 X or subslantiel / I 1

Potentkseretrk 5.464 • fi.. R 4- P. tv v . v I 1 - • ft

I /

INTERPRETATION CALCULATIONS (GAS)

Rrd .

ESTIMATED GAS PROPERTIES Esrjrnated Bottom Hole Temperatunt • Vi (Res cp, Compressibility Feder (Z)

TRANSMISSIBILITY ensured D.S.T. Gas Rale . f/d

. 1637 Q, ZT, 1637 ( 1 ( I I re 3 1

IN SITU CAPACITY

hll = 1 1 1 1 =

AVERAGE EFFECTIVE PE EABILITY Estimated Pay el Actual Pay Thic Ft

H—jf - mcl.

APPROXIMATE RADIUS OF INVESTIGATION

b .. 0,02 1/ kr,,P, = OM V 1 / / = ft.

ACTUAL CAPACITY . b

kh = 3270 Q, p 2 T, log10,47224 = 3270 ( 1 1 1 ( 1 1 ) ( 1 re F',. - Pie — 1 1

ESTIMATED DAmAGE RATIO

E.D.R. = IP; . POI rn (log T, 1- 2.651

ESTIMATED RANGE Of AOF POTENTIAL

Ma= AOF = Q POI = 1 1 ' -1.---3 )—(

' MCL/D P.• . Pi El / 1 /] I 1

I— 1 - I ) - MCF/D

• - . VII 1.1 I 1 I

ESTIMATED RANGE OF AOF POTENTIAL. DAMAGE REMOVED

M.. AOF, . IMe. AOF)1D.R.1 . 1 i 1 / = MCf/E3 Min. AOF, d (Min. AO& (D.R3 = ( 1 1 MCF/D

Drawl.. Factor = ISIP — FSIP . II30 = ( 1-1 t• 1C0 = .4 47:ietr:R: c 1SIP 1 1 or substantial

Potantiemetro Sedate = H, = 2 + P. II... v 4-1____).--' ± ft w I 1

appes-,‘ dym

Fprmation Testing Service Report c

—3:611 eti

•

el

HAMM= SERVICES,

us cc

trs Lir

o-

Each Horizontal Line Equal to 1000 p.s.i.

-Reports Girt STATE

ZIP CODE NUMBER

X7 r.! 4"; -.7

STREET & N 0.5/F 9:2 cr BUILDING

gcrAYTE iff

z IP CODE NUmBER

p ' (ipir

Reports

D.S.T. Repprt pistribution

ElALLIBURTON

A Division of Halliburton Company

DUNCAN. OKLAHOMA 73593 FORM 150GR3

Company Narne -,- Lease Owner

Requested Distribution of Completed D.S.T. Report Folder

for Ticket No. f- /-7-41 .1" T:

(ThIs Order Must Be Filled Out and Szgned By Company Representat lye)

Company (Meth- r •.- f cr)e- Orig. Chart

. r/L-Cn nji"

Report

P.O. BOX

rt9C.'

WATT. - - Reports

Company

P.O. BOX STREET & NO. BUILDING

Company

STREET & NO. BUILDING

CITY STATE

ZIP CODE NUMBER

Reports

Company

ATT.

STREET & NO. BUILDING

CITY STATE

Owner - 0 rotor - or His Agent

SIGNED

Send 1st, 2nd and 3rd Copy with Charts

(Use Additional Sheets When Necessary)

, Agent

ZIP CODE NUMBER

I I —., 9 n g

to t

=,. p. 1E1 E

O

et so o

14E1

11 Est imated Gauge f . 1 Dept h Tempera ture I

Pressure P.S.I. I I -,;c7 c I

2:c 02 te

•

L.--er

csr %. L

i.

Thousands of Inch • I

.

430 */ cl --..

0 E. 00,1

.-- ,

,

Device No4 76.-

7c titclaa aline°

Initial Hydro. Mud Pressure

Initial Flow Pressure

Final Flow Pressure

First Closed In Pressure initial Flow Pressure Final Flow

•

Pressure Second Closed In Pressure initial Flow Pressure

Final Flow Pressure Third Closed In Pressure

Final Hydro. Mud Pressure

isi Put

PIE

re-i i 2

13/4

it in g 1 I -t 4

:11j 1

I N

41! ..-

0 ,.,

1.!1:

'4 a

e,E

1

o•mo.

uv 0 ,::

„

Estimated Gauge 1/4'1 L y..•••• Depth Tempera ture I

I Pressure P.S.I.

(91

I 7

I Thousands of Inch

Q 0 'I

I

*obi aainaa „ •

Gauge Depth (C. 70 Ft.

-

,ressure • • , ft. Laitial Flow Pressure

Final Flow Pressure Pirst Closed In Pressure Initial Flow • ; • • I Pressure •• •- t:'; ̀' •• • Final Flow Pressure •

I Second Closed I I In Pressure

Initial Flow I Pressure Final Plow I Pressure ' Third Closed I In Pressure I

Final Hydro. Mud Pressure

WE

- a r '

CD

-A

7:3

23

LO

tri

E

R

T.

C71

N2

1/40

>21 a:

C-)

1.71

00

7:3 (f CD

rl vi

oNva

Hin

os

r-

XJ

70 );:,

PA

-In

Ut P

nSa

i

2 r. 0

5

FLUID SAMPLE DATA Ticket Dote 4-17-81 Number 064227

Sampler Pressun. 40 P S I G at Surface Kind Holliburton of D.S.T. OPEN HOLE Location GLENDIVE Recovery: Cu. Ft.

cc. Oil

cc. Water

cc. Mud

Tot. Liquid

Gravity

Gos ROBLHE LINDA &

Tester C.E. DORMADY Witness ROSE 1900

Drilling contractor BOMAC # 32 NM S cc 190°

• API @ °F EQUIPMENT & HOLE DATA

Gas/Oil Ratio cu ft /bbl Formation Tested Uharles-Limt UULUFIllt

Recovery Water

Recovery Mud

Recovery Mud Filtrate

Mud Pit Sample

Mud Pit Sample Filtrote

RESISTIVITY CHLORIDE CONTENT '

.118 @ 65 .F 45,00p Pm

Elevation 2630' Ft

Ft. Net

All

Total

Productive Interval

Depths Measured

Depth

- From Kelly Bushing

@ °F -PP"'

ppm

5285' Ft

__..... @ .130 @

_ °F Main

Drill

Drill

Hole/Casing

Collar Length

Pipe Length

Siv. 7 7/8" 50 ec 30,00N, 524' ID 2 3/8"

1 qn @ co •F 50.009pm , . 4651' ID. 3.826" Packer Depth(s) 5206' - 5214' it

• sec. Mud Weight ? vis ? Depth Tester Volve 5189' Ft

TYPE AMOUNT Depth Bock Cushion NONE Ft. Pres. Valve

Surface 'Bottom , , , „ NONE choke le Choke .5/ ii."

Recovered 470' Feet of mud cut water

Recovered 7141 Feet of water

leo. F

rom

Te

ster V

alve

Recovered Feet of

Recovered Feet of

Recovered Feet of

Remarks At 04:13 hours opened tool with a le blow; 04:15 Hours had 3" blow; 04:17 had 6" blow; 04:24 had a 9" blow; 04:34 had a re blow; 04:43 had a IZ I/8- blow.

At 04:43 closed tool for a 62 minute first closed in pressure period. At 04:46

had 11" blow; 04:57 had a 84" blow; 05:28 had a 6" blow. 05:28 bled off the a

pressure. At 05:43 hours opened tool - immediate 1" blow - 05:53' had a 4" blow; 06:03 had a 6" blow; 06:13 had a 7" blow; 06:18 had a 9" blow; 06:Zb had a 101/4 - blow; 06:43 had a 8" blow and closed tool. At 07:10 hrs."0" blow; 08:43 opened bypas

TEMPERATURE Gauge No. 4312 Depth: 5190' R.

Gauge No. 6/b Depth: 5282' R.

Gauge No. and came wit Depth: Ff.

ot thINEnoie... COO:00-24M hrs.)

Est. 145 °F.

24 Hour Clock 24 Hour Clock Hour Clock Tool

Opened 04:13 Blonked Off NO Blonked Off YES Blanked Off

Actual 'F. Pressures Pressures Pressures

Opened

Bypass 08:43 Field Office Field Office Field Office

Reported

minot"

Computed

mino. Initial Hydrostatic 2534 2509.8 2585 2556.3 t Mitial . Flow

45 51.6 45 114.4 .i," Final .

0. 269 330.3 274 384.4 30 31 Closed in 2226 2279.1 2270 2328.8 60 62

„ lifitiol 269 366.2 274 434.7 oc. Flow St Fin& NI. 584 629.2 686 681.9 60 63

Closed in ???6 2265.9 2270 .

2319.8. 120 114 Initial

2.8 Flow Zi Final 1-0..

Closed in

Final Hydrostatic 2912 2481 5 2563 2538.2

FORMATION TEST DATA FORM 181-22 — PUNTED IN U.S.A. LITTLE'S

r-

Third Closed In Pressu re

I %imp timel SISd

)

)

1

•

'

•

•

;none No 675 Depth 5282' Clock N . 2503 hour 24

i

) 7

) )

t-

UT ES. _*** I N TE RVAL = 2 MINUTES. 1

Ticket No. ,064 227

Time De fl.

1 1 1

---i

CO

Third Flow Per iod 1 ...imp

tiway SISd

t I

24 hour

Time Defl. .000"

1 * *

%Imp .thual Slid

11 Z.639

1

1143'5891 [10.696 L

2054. 9 II 2109. 811

1

,

21_1 4_15A1,

I

1 2171. 411 113.16LZ

I

1 2206. 511

I

22 19. 71 22,3n1,

1

2239. 51 1 2 248. 31

4 2254. 911 1

1

I c- 19zz I li

226 5 .91 1 6.199

r

1

1.1•95/1

1

: 2024. 7 [ 1971.12 16.891Z

1

1 L •zoez

•

1

i

22 27. 4 [

i

: 224 5. 51

II

•

1

[222#441

I

2286. 01

I

2292. 7 [

I

18'10E2

I

lcssocz

14

23 15. 31

I

117:71r1

Clock No. 2779

Second Closed In Pressu

Time Defl. .000" I °Ob.

I 5900. I aur I 6850.

L980 Lmc rtar

9E9L• I 868 L • I 65 Le •

LZt/Z• I E893 • r51767. •

1.0

0

C‘I

ty)

. I 89It'El

OELE•

0

0

0 L900.

9EE0* S090 •

I vLso • ztn• nti• 08911

I -- [ 6176L f[zz. 9817Z• SSLZ.

Ltzoc. Z6ZE •

1.95E• 0E8E•

Depth 5190'

)nd 3er iOd tu°)

.dwal 96d

I Z.99E

T13. 411 I 9.09t7 1 9.505

E•8175 L'885

1 r6Z9

1,...

d-

ee) *4' If*8•99tt

s•tis J 9.095 I L•1709 I 0.E179

6.1.89

.

1 OL

. .

)

.

I

)

:

171L V AI = 6 MI NUT ES. ** I NTERV AL = 1 3 MIN

0

0

0

1

'

,

1

1 5E170 I 1 OLLO•

SOW 1 Ott t • 1 SLL1.• 1 °LIZ. 1

e000' 'I1*3 suns

0

0

0 I 6tt/O•

ItLO. E9OL• 98E L • 8OLL•

i

OEOZ •

Cr

st

Vi

CO

J*6'0661

2083. 3 1 I 8. [VIZ

2182. 4 [ 2209. 4 [ 2234. 2 [ 2254. 5 22 72. 5 [

1 2283. 7 1 229 5. 0 1

1 2304. 0 0•ELEZ 1 8'61E3

1 23 24. 3 [ 1 23 28. 8 1

CY

FirSt sed In Pressure

"1

0

Pr) we)

•

%Imo

•

dwaj. Slid

. •

194 0. 24 203 9. 5 1 51760Z I

fitEL3 929LZ

1 8 '98 LZ

2206. 5 1 22 21. 9 [ 1 223 2. 9 [ 2243. 9 6 .17SZZ 1

L.E9ZZ J 1.•89ZZ

1"-..

•re

r...

C‘.1

CV

j L•6/37.1

1 1 I

Z LEV 'ON &MOD

r

-w476.1

I 000:

)

)

)

LUGO-

•

7

1

7

SEW-

)

7

)

I

ULM-

7

•

'

7

17119U-

'

)

7

7

7

•

7

7 .1

GCVO

.

7

:

9UUL

7 -

1 '

7 •

LtiLL• Stet

7

•

1

L

LDS L

LL9 61.151. 9Pb L

UtfUG

;

)

I

000

AOC 1ROdwil.

7

•

96 LO'

)

;

t I

9ZEO.

)

)

1 9517U

7

I ;

I I

I

1 9850-

)

.

•

•

LLLO"

)

Lt'f3U-

)

)

. .

' .

LL60-

I

)

' 8011

I

)

-

VELI

1

) /

7 ;

89E1

1

11

I '

6Z9I 66til

i 1

.

7 .

65L1

)

II

)

OZOi 0681

..

. •

L•

•

. •

II V 1711

'

'

.

-

fr9-_LLL

7

•

,

•

e-uve.

1

I t.

7

'

i

I U

:

I 6 bbt..

J

I V

'

S1N1 -WIfferntial First

Flow Per iod I

.

i

.

;

.

I

9.1.5 ,J0D -dual DISd

I

to-8-9LL

I

•

1 L6L '

)

-

•

I 6 -t'Lle

i

'

1

iv-9Le

"

7

/

I E-EUE

I

I

)

I ElUEE

)

)

)

1

7

7

I LUCU

7

1

I b9LIT .

I Lt.SU I SULU

:

•

LLISU

•

:

UVU L •

h

)

-

7

JAJd4U1 Uu!liud 21 I

'1100 ow!!

-0

Ol

—

0 1_25.E0

I I .Z.00 •

•CY

DO

.0

0

0

••-•

0

!—

) 0

.-

r,

7

1.11

r 1

Hvri

N.

CO

1` ,21-1

,±1-1

kLA

16_1

P

'I' I 1st, 1

t-

TICKE1 NO. Ub422/

ran'

O. D. D. LENGTH DEPTH

Drill Pipe or Tubing

90' UP Drill Collars ,, ,,

Reversing Sub 6k 2.50 Woter Cushion Valve

Drill Pipe 41/2" XH 41/2" 3.826" 4551' 4%"'H-90 Drill Collars 2

61/4" 2 3/8" 524' Handling Sub & Choke Assembly

Dual 0141kftirlive X-OVER 2.50 .65' Duol CIP Sampler ./5" /' 5178' Hydro-Spring Tester .75" 5' 5189'

Multiple CIP Sampler

Extension Joint

AP Running Case 511 2.25" 4' 5190'

Hydraulic Jar 5" 1.75" 5'

VR Safety Joint 511 1" 2.75'

Pressure Equolizing Crossover

Packer Assembly

Distributor

Packer Assembly

Flush Joint Anchor

Pressure Equalizing Tube

Blanked-Off B.T. Running Case

Drill Collars

Anchor Pipe Sofety Joint

Packer Assembly 711 1.53" 6' 5206'

Distributor 5 11 1.68" 2'

Packer Assembly 7 11 1.53" 6' 5214'

Anchor Pipe Safe y Joint

Side Wall Anchor

Drill Collors

Flush Joint Anchor 511 2.37" 66'

Blanked-Off B.T. Running Case 511 2.75" 4' 5282'

Total Depth 5285'

IFORM 111.7-R, - PRI ID IN US&

EQUIPMENT DATA

NOMENCLATURE

b = Approximate Radius of Investigation Feet

b , = Approximate Radius of Investigation (Net Pay Zone hi) Feet

D.R.= Damage Ratio

El = Elevation Feet

GD = B.T. Gauge Depth (From Surface Reference) Feet

h = Interval Tested Feet

hi = Net Pay Thickness Feet

K = Permeability md

K , = Permeability (From Net Pay Zone hi) md

m = Slope Extrapolated Pressure Plot (PsiVcycle Gas) psi/cycle

OF, = Maximum Indicated Flow Rate MCF/D

OF2 = Minimum Indicated Flow Rate MCF/D

OF3 = Theoretical Open Flow Potential with/Damage Removed Max. . MCF/D

OR; = Theoretical Open Flow Potential with/Damage Removed Min. MCF/D

ps = Extrapolated Static Pressure Psig.

p = Final Flow Pressure Psig.

= Potentiometric Surface (Fresh Water*) Feet

0 = Average Adjusted Production Rate During Test bbls/day

0 j = Theoretical Production w/Damage Removed bbls/day

0 9 = Measured Gas Production Rate MCF/D

R = Corrected Recovery bbls

= Radius of Well Bore Feet

T = Flow Time Minutes

t = Total Flow Time Minutes

T = Temperature Rankine °R

Z = Compressibility Factor

p = Viscosity Gas or Liquid CP

Log = Common Log

* Potentiometric Surface Reference to Rotary Table When Elevation Not G ven, Fresh Water Corrected to ICC' F.

Formation Testing Service Report

N2.13 1415 76 7->

SERVICES DUNCAN, OKLAHOMA

41 \

AP on A • r • LLI CC

04 0-

TIME

Each Horizontal Line Equal to 1000 p.s.i.

Formation Testing Service Report

3-= 7- C

V

2

0

3

LC

C-C C-7

C- C

' a

0

3

FLUID SAMPLE DATA Ticket Date 4-30-81 Number 064233

Sampler PressurP 50 P S I G at Surface Kind Halliburton of D.S.T. OFF BOTTOM STRADBLEffian GLENDIVE

■

Tester MR. II NDA Witness MR. ROSE prillMg Contractor TIOMAC #12 IC

EQUIPMENT & HOLE DATA ;

Recovery: Cu. Ft.

cc. Oii cc. Water

cc. Mud

Tot. Liquid

Gravity

Gas

2200

cc . 2200 * API @ •F

Gas/Oil Ratio cu ft /bbl

All

Formation Tester! Red River

Recovery Water

Recovery Mud

Recovery Mud Filtrate

Mud Pit Sample

Mud Pit Sample Filtrate

RESISTIVITY CHLORIDE CONTENT

1.10 @ 55 .F 1000 p_m

Elevation 73211 , t

Net

Total

Productive Interval

Depths Measured

Depth

101 Ft.

Fro BUSH fla (7337 ' ) _ @ — °F

" FPIm

PPm

ppm

8045 ' Ft

@ °F Main

Drill

Drill

HOle/Cosing

Collar Length

Pipe Length

Rice 7 7/8" 1.10 55 ..F 1000 @ 577' ID 2.25"

1 . 00 @ 55 oF 1150 ppm 6373' ID 3 826" Packer Depth(s) 69241-6930 ' -69501-6956' Ft

Mud Weight 9.1 vis _________,42 ec. Depth Tester Valve 69111

Ft

TYPE AMOUNT Depth Back Cushion Ft. Pres. Valve

Surface Bottom . Choke 1/4" Choke 3/4"

Recovered 6125 Feet of fresh water. Me

o. Fro

m T

este

r Vo

l,

Recovered Feet of

Recovered Feet of

Recovered Feet of

Recovered Feet of

Remarks SEE PRODUCTION TEST DATA SHEET.

TEMPERATURE Gauge No. 4312 Depth: 6912 ' Ft.

Gauge No. 675 Depth: 6916' Ft.

Gouge No. 1770 Depth: 6962 ' Ft.

TIME

(00:00-24:00 hn.)

Est. • °F.

24 Hour Clock 24Hour Clock 24Hour Clock Tool

Opened 18:45 Blanked Off NO Blanked Off NO Blanked Qff YES

Actuol 165 °F. Pressures Pressures Pressures

Opened

Bypass 21 :45 Field Office Field Office Field Office

Reported

minute.

Computed

minute. Initial Hydrostatic 3389 3394.5 3440 3395.5 3423 3437.0 initial 427 510 8 411 571.7 4-„,T Flow

'-'r Final J.: is o. 1229 1838.1 1819 1814.7 HYDROS TATIC 30 29 Closed in 3017 • 2994 7 . 7968 2991 9 RFI FAS= . 30 29

73.0 Initial 1873 1885 6 1864 1894 1 - 3300.2 lc o F ow o.,7 Finol LI.' 7775 7814 9 7788 7811.8 60 62

Closed in ROI 7 1076 n 2991 31124 7 60 60 Initial

7.7) Flow :Ef, Final im.

Closed in

Final Hydrostatic • 3389 3354.1 3395 3363.8 R421 3399 6

V't

Pc

8 E

7 MILE'S 111033 75.0 2/60 'FORM 1.110-112 - PUNTED IN U.S.A. FORMATION TEST DATA

Casing Bottom choke Surf temp •F Ticket No 064233 perfs

Gas Oil gravity GOR gravity

Res @ •F Spec. Chloride< gravity ppm

DEVICE USED INDICATE TYPE AND SIZE OF GAS MEASURING

Date

Time °a P.m.

Choke Size

Surface Pressure

Psi

Gas Rote MCF

Liquid Rate BPD

Remarks

12:00 On location.

15:00 Made up tools.

16:15 Started in hole.

18:45 Opened tool with 5" blow by bucket.

18:46 15" blow

18:48 20" blow

18:49 23" blow

18:50 27" blow

18:51 30" blow

18:53 1 1/4#

19:15 Closed tool with 2#.

T9:16 Bled off to pit.

19:19 Dead.

19:45 Opened tool with 8" blow.

19:48 ' 20" blow.

19:55 1#

20:45 Closed tool - bled off to pit.

21:45 Opened bypass & came out.

01:15 Opened sampler.

01:30 Laid down tools.

02:30 Job complete.

F'RODUCTION TEST DATA

INCREMENTAL PRESSURES FOR TICKET NUMBER 064233

PAGE NO. 1 OF 2

B.T. N

Depth

. 4312 B.T. No.

Depth

675 B.T. No.

Depth

1770

6912'-24 Hr. 69161-24 Hr. 6962'-24 Hr.

minutes Time 8101. moo"

Log t ± 9 0 TPe5r:I?). Time Dr' .000 Log t + ° TrieSr2

Time 13,-fl moo : LOgt+9 e

OFF BEL(W

P5IG

Corr o First F ow... First Flaw... BLANKEc

0 .000 510.8 .000 521.7 BOTTOM PACKER. 5 .0162 738.2 .0163 746.9 HYDROS AAIC 10 .0325 1033.0 .0327 1048.1 RELEASE - JiLio.2 15 .0487 1284.7 .0491 1291.2 20 .0647 1492.9 .0655 1504.1 25 .0810 1695.6 .0820 , 1691.6 29.4 .0951 1838.1 .0950 1814.7

Initial Closed il Pressure Initial Closed ir Pressure 0 .000 1838.1 .000 1814.7 2 .0066 2822.2 .0066 2820.9 4 .0130 2866.4 .0131 2368.2 6 0194 2893.8 .0196 2891.4 8 .0258 2913.2 .0262 2912.6 10 .0323 2929.2 .0329 2927.9 1? .0389 2943.1 .0394 2941.0 14 .0454 2951.0 .0458 2950.9 16 .0518 2960.2 .0526 2958.3 18 .058? 2968.1 .0590 2966.0 70 .0646 2973.6 .0655 2971.8 2? .0712 2979.8 .0721 2977.9 24 .0777 2935.3 .0788 2983.3 26 .0340 2989.2 .0852 2986.5 28 .o9ns 2994.1 .0919 2990.5 29.2 .0944 2994.7 .0960 2991.9

Sprond Flow Perild... Second Flow Pericd... n ono 1885.6 .000 1894.1 ln 0124 2151.4 .0329 2137.4 20 0647 2374.5 .0656 2363.7 in 097? 7533.4 .0984 ?529.5 40 1294 2651.2 .1312 2658.1 sn .1619 2742.6 .1639 7745.9 61.6 .199? 2814.9 .1985 2811.0

Second Closed ir Pressure Second Closed in Pressure 0 .000 2814.9 .000 2811.0 4 0129 2963.3 .0131 2969.6 A .n2ss 2981.3 .0263 2983.6 12 .0333 2989.7 .0394 2991.4 16 1 0517 2997.1 .0525 2996.6 PO .0646 3002.6 .0656 3001.1 _ ?II .0907 3008.5 .0919 3009.4

Remarks.

81-350

INCREMENTAL PRESSURES FOR TICKET NUMBER

064233

PAGE NO. 2 OF

9

B.T. No.

Depth

4312 B.T. No.

Depth

675 B.T. No.

Depth

1770

6912'-24 Hr. 6916 -24 Hr. 6967'44 Hr.

Minutes Time Defl.

m" Lon t ± 0

' o PSIG

Temp. cor,

Time Defl. .000"

Log t + 9 PSIG

Corr.

Time Defl .000"

Locit+8 0

PSIG Temp Corr o

SECOND CLOSED IN CON INU D I D Le e I 0 II s. HyDROSTAT1 R=1FASE

32 .1035 3012.9 .1049 3012.8 36 .1164 3016.8 .1181 3015.5 40 .1294 3018.6 .1310

.1443 3016.9 3-0-20.2 44 .1424 307071---

48 .1554 3022.5 .1-574-- 3023.1 5z .1683 3023.9 .1706 3023.8 56 :1812 3024.7 .1836 3023.8 59.8 .1934 3026.0 .1946 3024.7

Remarks:

81-350

-7

TICKET NO 064233 O. D. LENGTH DEPTH

Drill Pipe or Tubing

90' Drill Collars

Reversing Sub 6 1/7" 2.50" 11

Water Cushion Valve

Drill Pipe 4 1/2" 3.826" 6373' ,

Drill Collars 6.1/4" 2.25" 527' Handling Sub & Choke Assembly

Dual OP Volve 6 1/4" 2.50" .65' X OVER Dual CIP Sampler 5" .75" 7' 6900' Hydro-Spring Tester cli .75" 5' 6911'

Multiple CIP Sampler

6912'

Extension Joint

AP Running Case 2 29" 4'

Hydraulic Jar

5" cit

2.25" 1 75"

4' 9'

6916'

6924'

VR Sofety Joint 5" nni. 275' Pressure Equalizing Crossover 5" 75" 29'

Packer Assembly 7ii 1 51" 6'

Distributor

Pocker Assembly

Flush Joint Anchor

Pressure Equalizing Tube

Blonked-Off B.T. Running Case

Drill Collars

Anchor Pipe Safety Joint

Packer Assembly

Distributor

Pocker Assembly

Anchor Pipe Safety Joint

Side Wall Anchor

Drill Collors

Flush Joint Anchor

Blanked-Off B.T. Running Case

Total Depth

6930' 711 1.53" 6'

511 2.37" 15' 511 1" 1.50'

6950' 711 1.53" 6'

711 1.53" 6' 6956'

6960' 6 1/2" 2 00" 5'

6962' 511 2.75" 4'

8045'

111 $150.1167-12-.1,111WWMILSS

EQUIPMENT DATA

NOMENCLATURE

= Approximate Radius of Investigation Feet

b Approximate Radius of Investigation (Net Pay Zone hi) Feet

Damage Ratio

El = Elevation Feet

GD = B.T. Gauge Depth (From Surface Reference) Feet

= Interval Tested Feet

h , = Net Pay Thickness Feet

K = Permeability md

K = Permeability (From Net PaY Zone 111) md

m = Slope Extrapolated Pressure Plot (PsiVcycle Gas) psi/cycle

OF] = Maximum Indicated Flow Rate MCF/D

OF2 = Minimum Indicated Flow Rate MCF/D

OF3 = Theoretical Open Flow Potential with/Damage Removed Max. MCF/D

°Et = Theoretical Open Flow Potential with/Damage Removed Min. MCF/D

ps = Extrapolated Static Pressure Psig.

p F = Final Flow Pressure Psig.

po, = Potentiometric Surface (Fresh Water " ) Feet

Q = Average Adjusted Production Rate During Test bbls/day

Qi = Theoretical Production w/Damage Removed bbls/day

g = Measured Gas Production Rate MCF/D

R = Corrected Recovery lab's

r = Radius of Well Bore Feet

= Flow Time Minutes

= Total Flow Time Minutes

T = Temperature Rankine °R

Z = Compressibility Factor

= Viscosity Gas or Liquid CP

Log -=. Common Log

• Potentiometric Surface Reference to Rotary Table When Elevation Not Given, Fresh Water Corrected to 100' F.

DRILL STEM TEST

TECHNICAL SERVICE REPORT

(1) LYNES

n\v\-

N

PRESSURE CHARTS LYNES

GUIDE TO INTERPRETATION AND IDENTIFICATION OF

LYNES DRILL STEM TEST PRESSURE CHARTS

In making any interpretation, our employees will give Customer the benefit of their best judgment as to the correct

interpretation. Nevertheless, since all interpretations are opinions based on inferences from electrical, mechanical or other

measurements, we cannot, and do not, guarantee the accuracy or correctness of any interpretations, and we shall not be liable or responsible, except in the case of gross or wilful negligence on our part, for any loss, costs, damages or expenses

incurred or sustained by Customer resulting from any interpretation made by any of our agents or employees.

AK-1 recorders. Read from right o left. K-3 recorders. Read from left to right.

Kuster AK-1

BASE LINE OR ZERO PRESSURE

Kuster K-3 A

Time Time

A — Initial Hydrostatic B — First Initial Flow

C — First Final Flow

D — Initial Shut-in E — Second Initial Flow

F — Second Final Flow

G — Second Shut-in H — Third Initial Flow

I — Third Final Flow

J — Third Shut-in

K — Final Hydrostatic

Very low permeabili y. Slightly highe perme- Slightly higher perme- Average permeabili y. Average perrneability. Usually only mud recovered ability. Again usually ability. Small recovery, Final and initial shut- Strong damage effect. from interval tested. Vir- mud recovered less than 200 ft). ins differ by 50 psi. High shut-in pressure, tually no permeability. low flow pressure.

Excetent permeability where final High permeability where ISIP flow final shut-in pressure. and FSIP are within 10 psi.

Deep well bore invas on or dam-age. Final shut-in higher than the initial shut-in.

Tight hole chamber te ter. Permeability very difficult to interpret unless the re-covery is less than chamber length. Flow pressure builds up rapidly if recovery is large. similar to a shut-in.

0 co

said

oo i

eu!d

'o

N

Phone 713-790-9132 LYNES, INC. Box 12486

Houston, TX 77017

2. 0 a v a 0

Bornac Drilling Contractor Top Choke 1/4"

Rig No 32 Bottom Choke 3/4"

Spot NW—NW Size Hole 7 7/8" Sec 16 Size Rat Hole

Twp 21 N Size & Wt. D. P. 4 1/9" lA en Rng. 19 E Size Wt. Pipe

Field Wildcat I D of D. C. 9 1/4"

County Corson Length of D C 577 I

State South Dakota Total Depth 1404.51

Elevation 2111' "K R " Interval Testeda_

Formation Red Rivpr "Ft" Type of Test Inf 1

Straddle

— Flow No. 1 Min

Shut-in No. 1 Min

Flow No. 2 Min

Shut-in No. 2 _Min

Flow No. 3 Min

Shut-in No. 3 Min

Bottom Hole Temp

Mud Weight Gravity

Viscosity

8 . 9

60

Tool opened @

Outside Recorder

PRD Make Kuster K-3 Na. 20173 cap 6100 @ 6936'

Pmss Corrected

Int ial Hydros anc A

Final Hydrostatic K

Ini ial Flow

Final Initial Flow C

Initial Shut-in

Second Ini ial Flow E

Second Final Flow F

Second Shut-in

Third Ini ial Flow H

Third Final Flow I

Third Shut-in

Dickinson, N.D. Lynes Dist Our Tester: Darren Buchholz

Bob Rose Witnessed By'

0

to

CO

= O G 0 C HO • 0K rt 0 O M • LOH

LOH

▪ - 0 O H

al

•

E.) m

to 0

-J 0 P • O H. to 0

tn ✓t

P P- o

ai

0 0-

id.) in o

P r

• M

Did Well Flow — Gas No oil No Water No

RECOVERY IN PIPE: None

MISRUN: Could not obtain packer seats.

LII

6

LY-230

NOMENCLATURE (Definition of Symbols)

Q = average production rate during test, bbls./day

Qe; = rneasured gas production rate during test, MCF/day

k .= permeability, md

= net pay thickness, ft. (when unknown, test interval is chosen)

p = fluid viscosity, centipoise

= compressibility. factor

Tr = reservoir ternperature, ° Rankine

m = slope of final SIP buildup plot, psig/cycle (psig2/cycle fix gas)

b = approximate radius of investigation, feet

vvellbore radius, feet

= total flowing time, minutes

= Extrapolated maximum reservoir pressure, psig

= final flowing pressure, psig

= productivity index, bbls./day/psi

P.I.t = theoretical productivity index with damage removed. bbl./day/psi

D.R. = damage ratio

E.D.R. = estimated damage ratio

AOF = absolute open flovv potential, MCF/D

AOFt = theoretical absolute open flow if damage were removect

Z- = subsea depth

W = water gradient based on salinity

H. potentiometric surface

INTERPRETATION CALCULATIONS (01L/WATER) AVERAGE PRODUCTION RATE DURING TEST

Q = 1440 Nrill cellar cieipzitt pimp:tepee. ■ recovery) mov+eryfintdibivrill

= WO ri I( I + I )1 II

3 3 + I I

= 14407014S or .0373)( I I 3

= bbh./dey

Mud FoTem/N ` —

e'n !Cs tons5:nterl

FLUID PROPERTIES Estimated Bottom Hole Temperature •

API Grevtly 0 W. F • SpeciTh Gm @ ao• F. sit. 3r/scot/iv W

TRANSMISSINUTY

Ith = 167.6Q .. I62.6 [ I md..ft/co,

• on I I

IN SITU CAPACITY

a _ I II 1

AVERAGE EFFECTIVE PERMEABILITY

I = .1_11. = .d.

EH:mated Pay 13.ciniess H. Actual Pay Thednesa Fe.

PRODUCTIVITY INDOI

1 I te IN /dayipsi

46 - r. I I — I I

DAMAGE RATIO

DI. = 0783 (P. -11/4 = ONO il ) - I )1 Pt 1 )

PRODUCTIVITY INDEX WITH DAMAGE REMOVED

pt, - PT= Oil = ( I I ) = 661./dey.psi

APPROXIMATE RADIUS OF INVESTIGATION

N. It = VW = V / )1

o...a... Felt. = 1st.... F.S.I.P. a !co - i 1 — 1 1 ■ leo - .4-17.1;:.:"4 ts.,... ( 1 3 or adostential /

PahNicevertvic Surface = K. = Z + P. + 1 I

1 v • v 0

I

INTERPRETATION CALCULATIONS (GAS)

ler4 - . ESTIMATED GAS PROPERTIES Estimated Bottom Hole Temperatute • Grevity e 60. F Vistas (Rm I cp. Compressibility Fat/or (Z)

TRANSMISSIBILITY Measured D.S.T. Gas Rate te

13 • 1637 Q. Zlit 1637 ( I I 1 (

kid.

It m 1 I re ITU CAPACITY

kit = ( I I 3 =

AVERAGE FECTIVE PERMEABILITY

k = = no

Es6 At

ed Pay Thane R. Pay Manus

I

APPROXIMATE RADIUS OF INVESTIGATION

I I I I I /7 0.

ACTUAL CAPACITY

6 lh = 3270 Q. p Z T, log(0.47274 • 3270 ( ) I I ( ) ( j ( 1 =

P./ - PIT I I — I I

ESTIMATED DAMAGE RATIO

m Ng 1,, + 2.69

ESTIMATED RANGE OF AOF POTENTIAL

Max AOF = Q P.. = ( I I I - .L____I - I i

1--t -

MCF/D

trICEXD

TY - T/2 0 I — I 0

(— I I ri°

ESTIMATED RANGE OF ACP POTENTIAL. DAMAGE REMOVED

Mes. AOFt = (Max. AOEI (0 R.) = 1 1 1 Min. AOF, (Min. A0E] (D.R.) = ( I 1

MCF/D

MCF/D

Drawdown Factor v RIP — EST. 100 = I _I-1 (• 100 v 3

% 4sYjec"serC:tteut et substantial ISIP 1

Potentiornetric Surlace = H. = Z + P H = +.1---L" t ...... ...ft W 3 I

GEOLOGY REPORT

COCKRELL OIL CORP.

So. Dak. STATE 16 - I

nw nw Sec. 16-T 21N-RI9E

CORSON Co., So. DAKOTA

ROBERT UHLEM AN GEOLOGIST

MOORE & Associates

P.O. Box 2326

Williston, N.D. 58801

TABLE OF CONTENTS

WELLSITE RESUME 1

MAILING LIST 2

DAILY DRILLING SUMMARY 3

BIT RECORD 4

DEVIATION RECORD 5

DAILY MUD REPORT 6

FORMATION TOPS 7

ZONES OF INTEREST 8

DRILL STEM TESTS 9 - 13

LITHOLOGY 14 - 21

WELL SUMMARY 22

ENCLOSURE

5" drill time and Lithology log

WELLSITE RESUME

OPERATOR: ADDRESS:

WELL NAME E. NO:

LOCATION:

COUNTY:

STATE:

ELEVATION:

SPUD DATE:

T.D. DATE:

SURFACE CASING:

SAMPLE PROGRAM:

CORES:

DST'S:

PRIMARY ZONES:

SECONDARY ZONES:

CONTRACTOR:

EQUIPMENT:

TOOL PUSHER:

DRILLERS:

MUD PROGRAM:

ENGINEER:

GAS DETECTION:

ANALYSTS:

H2S SAFETY:

GEOLOGIST:

DRILLING FOREMAN:

LOGGING PROGRAM:

COMPANY:

TOTAL DEPTH:

WELL STATUS:

COCKRELL OIL COMPANY

SUITE 999 THE MAIN BUILDING HOUSTON, TEXAS 77002 ATTN: JOHN B. McNEELY

SOUTH DAKOTA STATE 16-1

SEC 16 - T21N - R 19E

CORSON

SOUTH DAKOTA

Gr. 2321' - K.B. 2332'

4-6-81

4-27-81

8 5/8" set at 2012'

30' - surface casing to 4500' 10' - 4500' to T.D.

None

All significant shows

MISSION CANYON, RED RIVER

BOMAC DRILLING COMPANY

RIG: - 32 DRAWWORKS: - IDECO H4O-D

PUMPS: - National C 350, National C250

Wayne Gilbert

F. Jones, L. Olsen, B. Olsen

Fresh water mud

Philip Kaaser

Analex

Tom Wilczek, Frank Baumgartner

Wildcat Safety Services (Covertt Long)

Robert 1110eman - MOORE AND ASSOCIATES

Bob Rose

DLL w/MSFL, FDC-CNL, Cyberlook

ReiyigLISurvey

Schlumberger Well Services

DRILLER- 8045' E-LOGS - 8062'

P A

1

MAILING LIST

Mud Logs DST'S E

0 S

Y

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8 c°4

03 cc '

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A

DAILY DRILLING SUMMARY

DATE BANTE OPERATION REMARKS

9 April 81 2012' Tripping Start drilling 1420 hrs

10 April 81 2940' Drilling Trip for NB #2 - 6 hrs

11 April 81 3627' Drilling Trip for NB #3 - 7 hrs

12 April 81 3902' Drilling Trip for NB #4 - 6 hrs

13 April 81 4174' Drilling Trip for NB #5 - 8 hrs

14 April 81 4415' Drilling

15 April 81 4708' Drilling

16 April 81 5054' Drilling

17 April 81 5285' DST DST #1 Resume drilling 1800 hrs

18 April 81 5356' Drilling DST #2

19 April 81 5407' DST Resume drilling 300 hrs

20 April 81 5714' DST DST #3 Resume drilling 1600 hrs

21 April 81 5768' Drilling

22 April 81 6056' Drilling

23 April 81 6300' Drilling

24 April 81 6761' Drilling Circulate samples 11/2 hrs

25 April 81 7188' Drilling

26 April 81 7518' Drilling

27 April 81 7956' Drilling T.D. 1400 hrs

28 April 81 8045' Logging

29 April 81 8045' Logging Circulate to condition hole for DST #4

30 April 81 8045' DST DST #4 Misrun, DST #5

31 April 81 8045' Plugging

3

BIT

NO. SIZE MAKE TYPE

BIT RECORD

DEPTH OUT FOOTAGE HOURS

CONDITION T B G REMARKS

1 121/4" HTC 05C3A 2012' 1962' 27 Surf. casing

2 7 7/8" HTC J-1 3609' 1587' 21.5

3 7 7/8" STC FDT 3902' 293' 17.75

4 7 7/8". SEC S4TJ 4066' 164' 10.25

5 7 7/8" SEC M4NJ 4318' . 252' 11.75

6 7 7/8" STC F2 5285' 1738' 127 DST 1,2,3

7 7 7/8" HTC J33 8045' 1989' 117 3/4 T.D.

4

DEVIATION RECORD

DEPTH DEVIATION METHOD

500' V Dropped

1000' 11/4° Dropped

2200' 3/4° Dropped

3498' 50 Dropped

3718' 50 Dropped

3879' 4° Dropped

4050' 3° Dropped

4303' 2° Dropped

4441' 1° Dropped

4700' 3/4° Dropped

5156' 2° Dropped

6044' 3/4° Dropped

8045' 3/4° Dropped

5

0 0

0

-I' 0

0

0 el W

I )0

0

0

0

0

0

0

0

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1/1 in

ea

Ln

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i 0

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0

0

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n

c0

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el ea

tr) u

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CHLORID ES

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DAILY MUD REC ORD

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FORMATION TOPS

AGE

GROUP

FORMATION

Cretaceous

Colorado

DRILL TIME E-LOGS

Niobrara 2276' (-56') 2276' (-56')

Greenhorn 2849' (-508') 2830' (-498')

Mowry 3011' (-679') 3011' (-679')

Inyan Kara

Dakota 3600' (-1268') 3610' (-1278')

Jurassic

Ellis

Swift 3714' (-1382') 3734' (-1402')

Triassic

Spearfish 4078' (-1764') 4120' (-1788')

Permian

Minnekahta 4180' (-1848') 42081 (-1876')

Pennsylvania

Minnelusa 4292' (-1960') 4316' (-1984')

Mississippian

Madison

Charles 5051' (-2719') 4316' (-1984')

Mission Canyon 5298' (-2966') 5320' (-2988')

Lodgepole 5586' (-3254') 5618' (-3286')

Devonian

Three Forks 6168' (-3836') 6182' (-3850')

Birdbear 6208' (-3876') 6213' (-3881')

Duperow 6250' (-3918') 6281' (-3949')

Silurian

Interlake 6498' (-4166') 6509' (-4177')

Ordovician

Red River 6890' (-4558') 6912' (-4580')

Winnipeg 7464' (-5128') 74641 (-5144')

Cambrian

Deadwood 7615' (-5282') 7633' (-5301')

ZONES OF INTEREST

Charles - 5222' - 5262' This zone had a drilling break of 1 minute to 2

minutes per foot for 40 feet. There was fair to good intercrystalline

porosity in a fine sucrosic limestone. A slow yellow-white streaming

cut was observed throughout the sample. No gas increase was recorded.

THIS IS A POOR TO FAIR SHOW

Mission Canyon - 5354' - 5372' This interval had a drilling break of 2 min.

per foot for 18 feet. Fair to good porosity was seen in fine

sucrosic limestone, and fair porosity in very vuggy limestone.

There was a slow to medium streaming yellow-white cut fluoresence.

No gas was observed.

THIS IS A POOR SHOW

Mission Canyon 5456' - 5462' A slight drilling break was seen in this zone

of fine sucrosic liMestone. The porosity was poor and samples showed

a very slow milky yellow-white cut fluoresence. No gas was recorded.

THIS IS A VERY POOR SHOW

Mission Canyon 5508' - 5514' A 2 min. per foot drilling break was recorded,

yielding a poor to non existant porosity. Traces of mily white-

yellow cut fluorescence were observed. No gas increases were seen.

THIS IS A VERY POOR SHOW

Lodgepole 5670' - 5680' Fine to medium sucrosic limestone contributed to

this drilling break of 10 feet. Poor to fair intercrystalline

porosity yielded a fast streaming yellow-white cut fluoresence.

No gas increase was observed.

THIS IS A POOR TO FAIR SHOW

Red River "B" 6920' - 6932' There was an increase of drill rate for 12 feet

of to 1 min. per foot. The samples contained a very clear fine

sucrosic limestone that was vuggy inpart, and had poor to fair

porosity. A trace of faint blue residual fluoresence was observed in

a small portion of this sample. No gas increases were sepn.

THIS IS A VERY POOR SHOW

8

DRILL STEM TEST REPORT

OPERATOR: COCKRELL OIL CORPORATION

1 REPORT NQ

DATE: 4-17-81

WELL NAME:c n qtatc, A1A-1

COUNTY: Corson STATE: S •D•

TESTING CC: Halliburton 'TYPE TEST: Conventional

to 5285' FORMATION: Charles

min Initial open: 3/3rnin , Second open: 8° min, Third open.

Initial shut-in. 6C min , Second shut•in: 120 min, Third shutin- min

T.O. with IC blow, increased to 3" blow - 15 min., 131/2" initial flow.

blow - 30 min.

T.O. with 1" blow, increased to 4" - 15 min., 6" - 10 min., Second flow:

7" - 15 min., 1011" - 30 min., 8" blow - 60 min.

Third flow.

INTERVAL: from 5214'

BOTTOM CHART PRESSURES TOP CHART

fwdrostatic

Initial flow

Initial shut.in

Second flow

Secondshut.in

Third flow

Third shut.in

Final hyckostatic

Bottom hole temperature: 145 °F

2534'

45/269

2226

769_/5R4

2226

2512

17 @ 50° .13 @ 50° 118 @ 65° Rrn: • Rf rec. SiTlpir •

Recovery: ATO' mud rut water, 714' water

Sampler

1900 cc water. 40 PSIG

Remarks.

9

DRILL STEM TEST REPORT

REPORT NQ 2

OPERATOR: rnrimpty OTT COMPANY DATE:4-1R-Al

5402'

WELL NAMES .D. State 16-1

TESTING CO.: Halliburton

INTERVAL: from 5337' to

COUNTY: Corson STATE: S .D.

TYPE TEST: Conventional

FORMATION: Mt 5 5 i on Canyon

Initial open;.•5_rnin , Second open: 3° min , Third open. min

Initial shut-in: in min , Second shut.in. in min, 7Nrd shutin• min

Initial flow T.O. with 3" blow, increased to 15" - 30 min.

Second flow: T.O. with 3" blow, increased to 15" - 30 min.

Third flow.

PRESSURES

Initial hydrostatic

Initial flow

Initial shu sin --

Second flow

Second shut•in

Third flow

Third shut.in

Final hydrostatic

2666 2720

100$;-- m , 45/154 45/320 . . ., .

- 2402 - 2450

404/584 366/595

i 2666 I :7,,P-

3675

145 °F Bottom hole temperature:

Rril .48 @ 79° Rf rec.' *58 @ 79° .94 (a 71°

470 feet mud, 678 feet of water )

Rf smplr:

Recovery :

Sampler • 2100 cc water., 5 PSIG

Remarks:

in

WELL NAME:

TESTING CQ:

S.D. State 16-1 COUNTY: Corson STATE: S.D.

TYPE TEST. Conventional Lynes, Inc.

DRILL STEM TEST REPORT

REPORT NQ 3

DATE: OPERATOR: COCKRELL OIL CORPORATION 4-20-81

5710' INTERVAL: from 5670' to FORMATION:Lodgepol e

30 30 Mitial open: min , Second open:. min , Third open: --- - min

Mitial sMkim 3° Min , Second shutin: 30 min, Third shuMn• ---- min

T.O. with 1" blow, increased to 31." - 5 min., 7" - 10 min., Initial flow.

bottom - 1 bucket - 23 min remained thru flow period

T.O. with J" blow, increased to 7" - 10 min., BOB - 20 Second flow:

min., remained thru flow period

Third flow•

PRESSURES

In itiol hydrostatic

Initial flow

Initial shut.in

Second flow

Secondshut.in

Third flow

Third shut.in

Final hyd-ostatic

2732 2744

, 241/478 246/491

2599 2605

534/570 526/526

7570 2564

Bottom hole temperoture:

.08 @ 69° Rf rec. .08 @ 71° Rf &nor 1.7 (a 69°

1426' black sulfur water Recoveny

2000 cc black sulfur water Sampler

Remarks:

°F

11

DRILL STEM TEST REPORT

REPORT NQ 4

COCKRELL OIL CORPORATION DATE. 4 - 30 - 81 OPERATOR.

WELL NAME: S.D. St AtP 16 - 1 ocuray. Cnr con

TESTING CO.: Lynes, Inc.

STATE: s

TYPE TEST: Inflatable Straddle

6930 6950 INTERVAL: from to FORMATION: Red River IIBII

Initial open • --- in , Second open. min , Third open min

Initial shut.in: min , Second shut.in. min, Third shut.in: min

Initial flow•

Second flow.

Third flow.

PRESSURES

Initial hydrost3tic

Initial flow

Initial shut.in

Second flow

Second shut•in

Third flow

Third shut.in

Final hydrostatic

Bottom hole temperature•

Rm:

Recovery :

TOP CHART

BOTTOM CHART

Rf rec.

Rf smplr

Sampler •

misrun Remarks.

12

DRILL STEM TEST REPORT

REPORT NQ 4

COCKRELL OIL CORPORATION 4 - 30 - 81 OPERATOR: DATE:

WELL NAME: S D. State 16-1 STATE: C n COUNTY: rnr snn

TESTING CO.: Lynes, Inc. TYPE TEST: Inflatable Straddle

6930 6950 Red River "B" INTERVAL: from to FORMATION:

Initial open; =—.• _min , Second open min , Third open. min

Initial shut-in: min , Second shutin: min, Third shutin• min

Initial flow•

Second flow:

Third flow:

PRESSURES TOP CHART

In Oil ttidrostatic

Initial flow

Initial shut-in

Second flow

Second shut.in

Third flow

Third shut.in

Final hydrostatic

Bottom hole temperature• °F

BOTTOM CHART

Rrn: Rf CC: Rf smplr

Recovery •

Sampler •

mi srun Remarks.

12

DRILL STEM TEST REPORT

REPORT NO 5

COCKRELL OIL CORPCRATION 4 - 30 - 81 OPERATOR: DATE'

WELL NAME: S.D. State 16 - 1

COUNTY: Corson

TYPE TEST' Straddle

STATE: S D.

TESTING CO.: Halliburton

6930' 6950' Red River "B" INTERVAL: from to FORMATION:

Initial open; 3° n , Second open:. 120 min , Third open• min

Initial shut-in: 3° min Second shutin: 210 --- -

min, TNrd shutin. min

initial fIow• Tool open with 5" blow. increased to 15" - 1 min., increased

to lie. PSI - 10 min., 2 PSI - 30 min.

tool open with 8" blow, increased to 20" - 10 min., Second flow 1 PSI - 60 min.

Third flow.

PRESSURES

Initial hydrostatic

Initial flow

Initial shutin

Second flow

Second shut- in

Third flow

Third shut-in

Final hydrostatic

T A T

3389 3440

427/1829 421/1819

3017 2968

1873/2725 1864/2788

3017 2991

3389 3395

Bottom hole temperature: 11,r) °F

Rrn: 1.0 @ 55° 1.1 @ 55° . 1.1 @55° Rf rec. Rf saw.

Recovery : 6125 feet of fresh water

Sampler 2200 cc water, 50 PSIG

Remarks.

13

LITHOLOGY

30' Samples - Surface casing to 4500'9 caught by rig crews, not lagged

10' Samples - 4500' to T.D., caught by loggers, lagged

Sample Quality - Fair

2012' - 2200' Shale, light to dark gray, soft, blocky, calcareous, traces

of bentonite, white to light gray, soft, traces of pyrite

2276' NIOBRARA formation

2200' - 2400' Shale, light to dark gray, soft, sub-blocky to blocky, slightly

calcareous, contains white specks of limestone, traces of

pyrite

2400' - 2510' No samples

2510' - 2600' Shale, medium to dark gray, soft, blocky, moderatley calcareous

2600' - 2660' Shale, medium to dark gray, soft, blocky, none calcareous,

traces of pyrite

2660' - 2720' No samples

2720' - 2780' Shale, medium to dark gray, soft, blocky, slightly to moderately

calcareous, contains white specks of limestone

2840' GREENHORN formation

2840' - 2900' Shale, medium to dark gray, soft, blocky to sub-blocky, slightly

to moderately calcareous, contains white specks of limestone,

traces of calcite crystals

2900' - 3110' No samples

3011' MOWRY formation

3110' - 3200' Shale, dark gray-black, soft, blocky, slightly calcareous

3200' - 3440' No samples

3440' - 3460' Sandstone, light gray, cream, firm, fine grained, subangular,

poorly sorted, moderatly to very silty, interbedded with shale,

gray, sub-blocky

3460' - 3580' Shale, medium to dark gray, soft subfissile to fissle,

splintery, non calcareous, occassionally silty, traces of pyrite

3580' - 3600' Shale, medium to dhrk gray, soft, subfissle to fissle, splintery

non calcareous, micaceous

14

3601 “'"'” DAKOTA formation

36001 - 366U' Shale, medium to dark gray, soft, fisole, platy, non

calcareous

3660' - 3714' Sandstone, cream-brown, gray, hard, very fine to tine grained,

well sorted, some silty, occasionally contains siderite inclusions,

interbedded with shale, gray, sott, fissle

3714' SWIFT tormation

3714' - 3784' Shale, medium to dark gray, soft, fissle, platy, non calcareous,

interbedded with sanostone, cream, gray, hard, fine graineo,

silty

3784' - itsuu' Sanestone, cLeam, brown, gray, hard, very iine to tine grained,

well sorted, some silty

3800' - 3832' Shale, light green-gray, gray, subfissle to fissle, splintery

inpart, waxy, non calcareous

3832' - 3842' Sandstone, white, light gray, hard, fine grained. well sorted,

calcareous cement

3842' - 3886' Shale, light green-gray, gray, subfissle to fissle, splinteryg

waxy, non calcareous, interbedded with sandstone, white,

light gray, fine grained

3886' - 3938' Sandstone, white, light gray, soft to firm, fine grained, well

sorted, glauconitic„ calcareous cement, interbedded with light

green shale, fissle, splintery

3938' - 3979' Shale, light green-gray, gray, soft, subfissle to fissle, platy,

waxy, non calcareous

3979' - 4010' Limestone, cream, buff pink, firm, cryptocrystalline to micro-

crystalline, non argillaceous, slightly dolomitic

4010' - 4068' Limestone, cream buff, firm, cryptocrystalline to micro-

crystalline, slightly argillaceous, slightly dolomitic, in-

terbedded with gray siltstone

4068' - 4100' Shale, green, gray-green, soft, flacky, platy, calcareous,

trace limestone

4100' SPEARFISH formation

4100' - 4180' Shale, green light gray, dark gray, 3oft, platy, calcaieous,

interbedded with orange siltstone

4180' NINNEKAHTA formation

1 5

4180' - 4292' Shale, gray-green, orange, soft bub-blocky to subfissle, slightly

calcarecus, interbedded with siltstone, orange, soft

4292' MINNELUSA formation

4292' - 4326' Shale, gray, gray-green, soft, subfissle to fissle, platy,

slightly calcareous, interbedded with SS, green, gray, rtry

fine to fine grained, poorly sorted, silty

MINNLUSA top

4326' - 4410' Dolomite, cream, white, pink, firm to hard, micro-crystalline to

fine sucrosic, non argillaceous

4410' - 4417' Sandstone, cream, pin, orange, firm, well sorted, fine to

medium grained, subround to round, cicareous cement

4417' - 4432' Dolomite, cream, white, pink, firm to hard, microcrystalline

to fine sucrosic, non argillaceous

4432' - 4448' Siltstone, orange, gray, soft to firm, pyritic, anhydrite,

white, amorphous

4448' - 4490' Dolomite, white, pink, mottled color, firm, to hard, crypto-

crystalline to microcrystalline, slightly to moderately

11111% argillaceous

4490' - 4510' Shale, gray, gray-green, orange, soft fissle to splintery,

slightly calcareous, non silty

45101 - 3432' Shale, gray, gray-green, orange, soft fissle to splintery,

slightly calcareous, silty

4532, - 4554' Shale, gray, gray-green, orange, soft fissle to splintery,

slightly calcareous, silty, interbedded with gray siltstone,

in1‘111)...dded with gray siltstone, interbedded with sandstone,

ceam, orange, fine to medium grained, well sorted, subangular,

to subround„ silty inpart

4554' - 4595' Dolomite, cream, pin, firm to hard, cryptocrystalline to

microcrystalline. slightly argillaceous, interbedded with

sandstone, pink, white, firm, fine grained, well sorted, cal-

careous

4595' - 4611' Shale, pink, cream, light to dark gray, soft, blocky to

platy, non calcareous

4611' - 4626' Dolomite, cream, pink, firm to hard, cryptocrystalline to

microcrystalline, some fine sucrosic, slightly to modftrately

argillaceous

16

4626' - 4650' Shale, medium to dark gray, firm, blocky to subblocky, non

calcareous

4650' - 4670' Shale, medium to darlf gray, gray-green, firm, blocky to sub-

blocky, some flaky, non calcareous

4670' - 4720' Shale, medium to dark gray, gray-green, orange, rose, firm,

subfissle to fissle, some splintery, non calcareous

4720' - 4770' Shale, medium to dark gray, firm, subblocky to fissle

4770' - 4794' Shale, black, dark gray, bronw, soft to firm, subblocky to

fissle„ silty, sandy, trace clay, trace pyrite

4794' - 4842' Dolomite, cream, brown, gray, firm to hard, cryptocrystalline

to microstyatlline, slightly argillaceous

4842, - 4866' Shale, green, light to dark gray, orange, soft to firm, blocky

to fissle, waxy, trace anhydrite, white, soft, amorphous

4866' - 4912' Shale, green, light to dark gray, orange, soft to firm, blocky

to fissle, waxy, interbedded with dolomite, cream, firm, micro-

crystalline

4912' - 4951' Limestone, dark gray, firm to hard, cryptocrystalline to micro-

crystalline, very argillaceous„ shaly, interbedded with dark

gray shale, trace anydrite

4951' - 4961' Shale, orange, brown, soft, fissle to platy, some waxy

4961' - 4980' Limestone, cream, pink, gray, firm to hard, microcrystalline,

some fine sucrosic, vuggy, very argillaceous, interbedded wit'

gray shale

4980' - 5051' Shale, orange, brown, gray, yellow, soft to firm, fissle to

platy, waxy, interbedded with siltstone, gray, orange, soft,

slightly dolomitic

5051' CHARLES formation

5051' - 5070' Limestone, cream, white buff, firm, microcrystalline to fine

sucrosic, very vuggy, non argillaceous, follisferous, pieces

of coral ieef in sample, fair to good porosity

5070' - 5112' Limestone, cream, light gray, brown, firm to hard, cryptOcrystal-

line to microcrystalline, some fine succrosic, nun to slightly

argillaceous, no to poor porosity

5112' - 5220' Limestone, cream, light gray, brown, firm to hard, crypto-

crystalline to microcrystalline, some fine succrosic, slightly

to moderately argillaceous, no porosity, interbedded with

anhydrite9 white, soft, amorphous

1 7

5220' - 5262' Limestone, cream, light brown, buff, firm, microcrystalline,

to fine sucrosic, vuggy, fair to good intcrcrystalline

porosity, slow yellow-white streaming cut

5262' - 5298' Limestone, cream, light brown, buff, firm, microcrystalline to

fine sucrosic, vuggy, fair, interbedded with anhydrite, white,

soft, amorphous

5298' MISSION CANYON

5298' - 5338' Dolomite, light gray, hard, cryptocrystalline, to micro-

crystalline, slightly argillaceous, interbedded with anhydrite,

white, soft, amorphous

5338' - 5350' Limestone, brown, cream, firm to hard, microcrystalline to fine

sucrosic, vuggy„ fractured

5350' - 5372' Limestone, brown, cream, firm to hard, microcrystalline to fine

sucrosic, some medium sucrosic, very vuggy, fractures, fair to

good porosity, slow to medium streaming yellow-white cut

5372' - 5452' Limestone, cream, brown, firm to hard, cryptocrystalline to

fine sucrosic, vuggy, none to poor porosity

5432' - 5462' Limestone, cream, brown, firm to hard, microcrystalline to fine

sucrosic, vuggy, fractures, poor porosity, slow yellow-white

milky cut

5462' - 5484' Limestone, cream, brown, firm to hard, microcrystalline to fine

sucrosic, vuggy, slightly argillaceous, none to poor porosity

5484' - 5500' Anhydrite, white, gray, soft, amorphous

5500' - 5508' Limestone, cream, brown, firm to hard, microcrystalline to fine

sucrosic, slightly argillaceous, none to poor porosity

5508' - 5514' Limestone, cream, buff, brown, firm to hard, microcrystalline

to fine sucrosic, slightly argillaceous, none to poor porosity

trace of slow yellow-white milky cut

5514' - 5586' Limestone, cream, buff, brown, frim to hard, microcrystalline

to fine sucrosic, slightly argillaceons, none to poor porosity

5586' LODGEPOLE formation

5586' - 5642' Limestone, cream, gray, firm to hard, microcrystalline to fine

sucrosic, slightly to moderately argillaceous, slightly dolomitic,

none to poor porosity

18

5642' - 5670' Lifflestone, cream, gray, firm to hard, microcrystalline to

fine sucrosic, vuggy, slightly to moderately argillaceous,

slightly dolomitic

5670' - 5680' Limestone, cream, gray, firm to hard, microcrystalline to

fine sucrosic, vuggy, iuterbeds of soft medium sucrosic, poor

to fair porosity, fast streaming yellow-white cut

5680' - 5730' Limestone, cream, gray, firm to hard, microcrystalline to fine

sucrosic, moderately to very argillaceous, silty, traces of

anhydrite

5730' - 5830' Limestone, cream, gray, firm to hard, microcrystalline,

slightly to moderately argillaceous, slightly dolomitic, silty,

traces of anhydrite

5830' - 5896' Limestone, cream, gray, gray-brown, firm to hard, cryptocrystalline

to microcrystalline, slightly argillaceous, no porosity

5896' - 5922' Limestone, cream, gray, gray-brown, firm to hard, crypto-

crystalline to microcrystalline, slightly argillaceous, inter-

beus of anhydrite, white, soft, no porosity

5922' - 6060' Limestone, cream, gray, brown, firm to hard, cryptocrystalline

to microcrystalline„ slightly argillaceous, dense, no porosity

6060' - 6088' Shale, dark gray, black, soft to firm, subfissle, splintery

6088' - 6096' Sandstone, gray, clear, firm, medium to coarse grained, poorly

sorted, very silty, calcareous

6096' - 6168' Shale, dark gray, black, soft to firm, subfissle, splintery,

non calcareous

6168' THREEFORKS formation

6188' - 6208' Shale, green, light gray, brown, orange, soft, subblocky to

platy, traces of glauconitic sandstone, interbeds of gray,

white, siltstone

6208' NISKU formation

6208' - 6250' Limestone, cream, brown, firm tu cryptocrystalline to

microcrystalline, slightly to moderately argillaceous, no

porosity

6250' DUPEROW formation

6250' - 6254' Siltstone, light gray, very soft, calcareous

19

6254' - 6358' Limestone, brown, gray, cream, firm to hard, crypto-

crystalline to microcrystaliine, some interbeds of fine sucrosic

slightly argillaceous, dolomitic in part, no porosity

6358' - 6440' Limestone, as above, with traces of anhydrite

6440' - 6498' Limestone, cream, brown, orange, firm to hard, crypto-

crystalline to microcrystalline, slightly argillaceous, dolomitic

6498' INTERLAKE formation

6498' - 6576' Dolomite, white, cream, orange, firm to hard, cryptocrystalline

to microcrystalline, some parts fine sucrosic, dense, no

porosity

6576' - 6634' Dolomite, white cream, buff, film to hard, microcrystalline to

fine sucrosic, slightly argillaceous, ocassionally interbedded

with limestone, cream, microcrystalline

6634' - 6680' Dolomite, white, cream, firm, fine sucrosic, non argillaLeous,

fair porosity, au visible show of gas

6680' - 6704' Dolomite, cream, buff, firm to hard, cryptocrystalline to

mircrocrystalline, slightly argillaceous, no porosity

6704' - 6730' Dolomite, white, cream, firm, fine sucrosic, non argillaceous,

fair porosity, no visible show fluoresence or gas

6730' - 6780' Dolomite, cream, brown, firm to hard, cryptocrystalline to

microcrystalline, slightly argillaceous„ no porosity

6780' - 6810' Dolomite, cream, brown, firm, fine sucrosic, non argillaceous,

fair porosity, no visible show fluoresence or gas

6810' - 6920' Limestone, cream, brown, gray, firm to hard, cryptocrystalline

to microcrystalline, slightly argillaceous, no porosity

6890' RED RIVER formation

6920' - 6932' Limestone, white, cream, firm, mi(imiy.Ielline to fine sucrosic,

some vuggy porosity, poor to fair porosity, traces of a faint

blue residual fluoresence.

6932' - 6978' Limestone, cream, buff, firm to hard, cryptocrystalline to

microcrystalline, slightly argillaceous, no porosity

6978' - 7000' Limestone, white, cream, firm, microcrystalline to fine sucrosic,

poor to fair porosity, no visible show fluoresence or gas

7000' - 7070' Limestone, cream, gray, brown, firm to hard, cryptocrystalline

tomicrocrystalline, slightly argillaceous, dense, no porosity

7070' - 7088' Limestone, cream, buff, firm to fine sucrosic, fair porosity,

no visible show fluoresence or gas

20

7088' -.7144' Limestone, cream, buff, firm, cryptocrystalline to micro-

crystalline, slightly argilleceous, dense, no porosity

7144' - 7210' Limestone, cream, buff, brown, firm to hard, microcrystalline,

some fine sucrosic, non to slightly argillaceous

721U1 - 7266' Limestone, cream, buff, brown, firm to hard, microcrystalline,

some fine sucrosic, contains traces of vugs, non to slightly

argillaceous„ no porosity

7266' - 7346' Limestone, cream, buff, brown, tirm to hard, microcrystalline,

some interbeds of fine sucrosic, traces of vugs, non to slightly

argillaceous, no porosity

7346' - /4.50' Limestone, cream, butt, brown, firm to hard, cryptocrystalline

to tine sucrosic, non to slightly argillaceous, none to poor

porosity, some InLerbeddeo anhydrite, white, sotto amorphous

/4641 WINN1lEu tomatiou

743U' - 749o1 Sandstone, clear, gray-green, firm to hard, tine grained, well

rounded, well sorted, glauconitic„ pyrite, interbedded with

shale, green, gray, splintery, pyritic

7496' - 7458' Shale, green, gray, firm, splintery, interbedded with sandstone,

as above, pyritic

7458' - 7460' Anhycrite, white, soft, amorphous

7460' - 7633' Shale, green, gray, firm, splintery, pyritic, non calcareous

7633' DEADWOOD formation

7633' - 7692' Sandstone, clear, white, hard, fine to coarse grained, well

sorted, subround to round, frosted

7692' - 7790' Sandstone, clear, white, hard, fine to coarse grained, well sorted,

frosted, glauconitic

7790' - 7870' Sandstone, clear, white, gray, hard, fine to coarse grained,

poorly sorted, silty, frosted, glauconitic

7870' - 8045' Sanstone, clear, white, gray, hard, fine to coarse grained,

poorly sorted, silty, glauconitic, interbedded with shale,

green, firm, splintery

21

WELL SUMMARY

The South Dakota State 16 - 1,Drilled by The Cockrell Oil Corporation,

was spudded on 6 April 1981, drilling a 12 1/4" hole to 2012'. 8 5/8" casing was run, and then a 7 7/8" hole was drilled to a total depth of

8045'. Total depth by Electric logs was 8062'.

The major zones of interest in the Charles and Mission Canyon yeilded

minor shows in the samples, and contained water when tested. The Lodgepole

formation had a small porosity zone which also yeilded water on a DST. The

Red River formation had a minor show in the. "B" zone. The "A", "C", and "D"

zones had no shows. sample or gas. After T.D. was reached, a straddle test

was run in the Red River "B", with fresh water and no hydrocarbons being

recovered.

A minor objective, the Deadwood formation, showed a clean beach sand

with no traces of oil.

There were problems with lost circulation, and minor problems with

bridging during E - Logs, but Lost Circulation material solved the fluid

loss problems, and the E - Logs were successfully completed.

With no zones of production, the hole was plugged. Cement plugs were

run as follows: 7622' - 35 sacks, 6912' - 40 sacks, 5618' - 35 sacks,

5320' - 35 sacks, 4316' - 35 sacks, 3610' - 35 sacks, 2830' - 35 sacks,

surface - 35 sacks.

Respectfully Submitted,

47 41/.2 „442— (, (Ate it

Robert Uhleman

22

ADMINISTRATIVE / SUNDRY REPORTS

B. Dak. 011 & Gas Board FORM 7

PLUGGING RECORD

•u111 Cf.. Plum

Operator Cockrell Oil Corporation

Name of Lewis

South Dakota State

Address

999 The Main Building, 1212 Main St.,Houston, Texas Field & Reservoir 77002 Wildcat

Location of Well 660' FNL & 660' FWL of Sec. 16-T21N-R19E

Sec-Twp-Rge or Block & Survey county

Corson

Application to drill this well was filed in name of

Cockrell Oil Corporation

Date plugged:

5-4-81

Has this well ever produced oll or MIS

No

Total depth

8,040'

Amount well producing when plugged: 011 (bbls/day) Gas (IVICF/day) Water (bbls./day)

Character of well at ompletion (initial production): 011 (bbla/day) Gas (MCF/day) Dry?

Yes

Well No. 16-1

Exc.( uted this the 8th day of Ma.y

state of Texas County of Harris

, 19 81

1 Signature of Milant

Annrmeti _MAY DO NOT WRITE BEL THIS LINE

." 0 ANDGSB DO STATE OF SOUTH DAKOTA

io 6

4 1981 Date

Name of each formation contain-ing oll or gas. Indicate which formation open to weU-bore at time of plugging

Fluid content of each formation Depth interval of each formation Size, kind & depth of plugs used Indicate zones squeeze cemented, giving amount cement.

None

CASING RECORD

Size pipe Put In well (ft.) Pulled out (ft.) Left In well (ft.) Give deptri" and method of part- ing casim; (shot,

ripped etc)

8 -5/8" 2,012' 0 2,012'

Packers and shee::

_ . _ _— was well fi!lcil with mud-laden fluid, according to regulations? Yes

Indicate deepest formation containing fresh water.

In ,u1,iltion to other information required on this form, If this well v.', pitu:ged ha( k for use as a fresh water well, give all pertinent details of pluveing opt•ratlons to base of fresh water sand. perforated interv to fret.h water sand. name and address of surface owner, and attach it‘tt, r. e ner authorizing completion of this well as a wa ter w ell and agreeing to assume full liability for any subsequent plug-ging which nUght he required.

Cement Plugs:

...6,912'

...5,320' ..5,135'

...3,610'

...2,830'

- 7,522' - 6,800' - 5,518' - 5,220' - 5,035' - 4,216' - 3,510' - 2,730'

1,962'

1.) 35 sxs 2.) 40 sxs 3.) 35 sxs 4.) 35 sxs 5.) 35 sxs 6.) 35 sxs 7.) 35 sxs 8.) 35 sxs 9.) 35 sxs

• • • Deadwood 10.) 10 sxs ...at Surface and welded Red River cap on Casing Lodgepole Mission Canyon Charles No Dry Hole Marker at the request of Minneloosa Surface Lease owner.

• • • Fall River Green Horn Bottom of 8-5/8" Casing

USE REVERSE SIDE FOR ADDITIONAL DETAIL

appeared _ Larry R. Tschirhart known to me to be Before me. the vndersigned authority, on this day personally — - the pet-Fon whose name is subscribed to the above instrument, who being by me duly sworn on oath states, that he Is duly authorized to make the above report and that he has knowledge of the facts stated therein, and that said report is true and correct.

8th May 81 ---, , 19 Subscribed and :,worrt to bcfore me this day of _ . — -- ,,,- ..„., C.,,,-- -c-csy L'"--e-Ce.c .112A— SEAL

_ - . - ' _ ale. f- X_ . ./. ‘i. I. ? II S ' __ Fahny Etinore

Notary Public in and for„..:14 rf.:efer-<,..- My commission expires

Nt' M .., v...,.. r

c.7r) 2 rn CI) f -

cl

c,-2. _, "r1 rri 0 r - c.....„ - , --4 -, _ cc, .--) 0 i-r. 44. 4-.."- C.O.. • 1 Ci-

r''''!, 4 CC

C--'. .....

'..

q::-:.',._ ",,,r..

,

--Vt,.1y. 41,?7,7 vnii,'"iv?

, L,,u, ....pro'

Ite: Elie 2 copies of this form with secretary, 011 & Gas Board. Pierre.

OPERATOR Wildcat

% SEC. TWP. RGE.

C NW NW Sec. 16- T21N-R19E

LOCATION (In feet from nearest lines of sec on or ego au on, w ere

FARM OR LEASE NA/4E

SUNDRY Norms AND REPORT ON WELLS South Dakota State

WELL NO.

0 OIL WELL 0 GAS WELL Ej DRY

Cockrell Oil Corporation ADDRESS

999 The Main Building, 1212 Main St., Houston, Texas 77002

660' FNL & 660' FEL Sec. 16-T21N-R19E

NO. ACRES IN LEASE

640

16-1 FIELD AND POOL, OR WILDCAT

F THE 'TATE OF SOUTH DAKOTA

. Secretor-,

& Disk. Oil & Gas Board FORM 6

ELEVATIONS (D.F., R.X.B., R.T., ORD., etc.; how determined) COUNTY

2,320.8' GRD Corson

TEST WATER fortrr.orr SHOOT OR ACIDIZE WATER SHUT-OFF SHOOTING OR ACIDIZING

FRACTURE TREATMENT' —

REPAIRING WELL FRACTURE TREAT REPAIR WELL

MULTIPLE COMPLETE PULL OR ALTER CASING ALTERING CASING

ABANDON X (Note: Report results of Completion or Recompletion

multiple completion on Well and Log Form—Form 4)

DESCRIBE PROPOSED OR COMPLETED OPERATIONS (Clearly state all pertinent details, and give pertinent dates, including estimated date of starting any proposed work)

Set Cement Plugs:

1.) 35 sxs ....7,622' - 7,522' Deadwood 2.) 40 sxs —.6,912' - 5,518' Red River 3.) 35 sxs —.5,618' - 5,518' Lodgepole 4.) 35 sxs —.5,320' - 5,220' Mission Canyon 5.) 35 sxs —.5,135' - 5,035' .., Charles 6.) 35 sxs —.4,316' - 4,216' Minneloosa 7.) 35 sxs —.3,610' - 3,510' Fall River 8.) 35 sxs —.2,830' - 2,730' Green Horn 9.) 35 sxs —.2,062' - 1,962' Bottom of 8-5/8" Casing 10.) 10 sxs ....Surface

Cut 3' below Ground Level & Capped No Dry Hole Marker at the request of Surface Lease owner

I hereby cert that thw/o5ego awy operation performed is • true and oorrect report ot such work or operaUon. ...

SIGNED - . . • ■.

vt,,..-....4,A ,... ''',:-e. :teC,1: TITLE Production Engineer DAIT__577.7Sil_ _ Larry R. Tschirhart

INDICATE BELOW BY CH/DCIL MARE NATURE or REPORT, NOTICE OR OTHER DATA NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF:

—

DO NOT WRITE BELOW TI31111 LINZ

Approved Data

Oleg: AND fr

CONDITIONS. IF ANT:

MAY 14 1981

Bee Instructions On Reverse Side

CORRESPONDENCE

Mr. Fred V. Steece, Supervisor

Western Field Office

36 East Chicago

Rapid City, SD 57701

Dear Mr. Steece:

This letter informs you that the surface restoration

at the site of the following oil or gas test well

has been completed to my satisfaction.

Permit Well Name and Location

1065 Cockrell #16-1 State, Corson County, SD

I am the surface owner of record.

SIGNED 4,7nt/ DATE

MISCELLANEOUS

NO MISCELLANEOUS INFORMATION FOR THIS WELL

AS OF 5/12/2011