OCS-G-57 /^7

In Aejely Refer Toi NavoaUr 12* 1907

1 J Peltd Ofl Company . Attentions Mr. Jeffrey R. NugMa OM Alloa Cantar, Salt* 1000 SOO Dallas Straat houtton* TOMO 77002 »tl«

1a oooo to yoor Supplaaantal Plaa af Explor* < Ion racal vaa Novnjpbar 5, 1967. for L O O M OCS-0 5717, Block 200, Mala Paee Aroa, ThU plan 4 ncl aaaa tM actlvftfM p r a j i m for aaii F.

Xa etcerinnci with SO CTR 2S0.34. rav 1 Md OooaMor 13. 1970* aM Mr lattar Oata* January 20* 1979, tMa plan la MrMy OateratM* to M caaplatn and la now M1«o canal i a r ad far approval

Yoar plan oontrol ooooor la $-2039 aM thou Id ba referees ail In /our o cation oad eerrMfMimci er^zormiKQ this plan.

Sincaraly yours*

(Orig. Sod.) Will lam H. Martin

cj^ 0« J* PearnpoU Regional Sofanrlaor Ft aid Opart*1ona

a ei Laasa OCS-G S717 (OPS-3-2) (FILE ROOM) (OPS-3-4 a/Pwbllc Info. Copy of tha plan (PUBLIC RECORDS)

HJ I ol Mrttcck: L1/09/SV ipoacon

ff?

ai /

i Novtmber 3, 1987

Mr. Daniel Bourgeois Office of Fie ld Operations U.S. Department of ths Intsr ior Minerals Management Ssrvlcs 1201 Elmwood Park Boulevard New Orleans, Louioisns 70123-2394

At t sn t lon : FO-2-1

RE: OCS-G 5717, Block 209 Hsin Psss Ares, Offshore Louisiana Supplemental Plsn o f Explorat ion

Gentlenen:

In accordance with 30 CFR 250.34, ss amended, Pelto Oil Company, herein respectfully submits for your spprovsl, s Supplemental Plsn of Explorstion for Leaee OCS-G 5717, Block 209, Msln Psss Area, Offshore Louisiana.

Pelto Oil Company submits nine (9) copies of the proposed Supplesentsl Plsn of Exploration. Five (5) copies sre considered Proprietary Infornation and sre exespt fron disclosure ss allowed for in subsection (b) psrsgrsph (9) of the Freedom of Information Act (81 Stst. 54; U.S.C. 552) ss amended by Public Law 93-502, November 21, 1974, (88 Stst. 1561). The information believed to be exempt is geologicsl and/or geophyslcsl. Ao Operetor of this lesse, Pelto Oil Compsny requests thst this informstion and dete considered to be exespt be dispensed for use only by the U.S. Government. Four (4) copies sre considered "Public Information".

P«?lto Oil Compeny snticipstes cosmenclng drilling operstions on December 1, 1987.

Thank you for your consideration in this matter. If further informstion is required, please contsct the undersigned st 713/651-1800.

Sincerely,

Drilling Superintendent

JRH : JAC:bna enclosuies

mm Oil COMPANY • One Men Cer.tei SMe WOO • SOO Dallas Street Houston, lexas 7700? • 713651-1800

PELTO CIL COMPANY

SUPPLEMENTAL PLAN OF EXPLORATICN

OCS-G 5717

MAIN PASS AREA, BLOCK 209

Pelto Oil Company (Pelto), aa Operator of the subject block, submits t h i s proposed Supplemental Plan of Exploration i n accordance v i t h the regulations contsined v i t h i n T i t l e 30 CFR 250.34 ss fol l o v s :

1. Schedule of.Operations

Five wells were proposed i n the I n i t i a l Plan of Exploration submitted by Union Exploration Partners snd revised by Pelto Oil Conpany.

Well locations A thru D have been d r i l l e d as wells No. 1 thru 4, snd Pelto has requested a Revised Plan of Exploration to amend the location of Well "E".

Pelto i s hereby proposing to add location "F".

Well "F" w i l l be spudded on or about December 1, 1987, subject to the approval of this Supplemental Plan of Exploration and issuance of the required Permits to D r i l l . Well "F" should take approximately 25 days to d r i l l .

I t should be emphasized that t h i s schedule i s tentative ln the meaning of 30 CFR 250.34-1(a). Additional exploratory d r i l l i n g must be predicated upon the need to further define structures and/or reservoir limitations. In addition to the d r i l l i n g of t h i s well, other s c t i v l t i e e vhich may be conducted under thie Plan would be the setting of a well protector structure, a seafloor template, a velocity survey in a wellbore, and the collection of s o i l borings.

Transportation from the existing onshore f a c i l i t i e s in Venice, Louisiana, to the surfoce location in Block 209 v i l l involve the use of one supply boat making three t r i p s a week, one crew boat making three t r i p s per week, and one helicopter making seven t r i p s per veek.

?. D r i l l i n g EquIpment

Depending on the a v a i l a b i l i t y of rigs, the proposed veils w i l l be dri l l e d with a jack-up d r i l l i n g r i g similar to the Teledyne No. 17. An equipment l i s t is enclosed herewith as Attachment I .

Safetyjfeatures wtll Include well control and blowout prevention equipment as 'described in OCS Order No. 2. The appropriate l i f e rafts, l i f e jackets, ring buoys, etc., ss prescribed by the U.S. Coafst Guard v i l l be maintained on the faci l i ty at a l l times.

3. Locatlon_of_wellB

The approximate location of the well proposed in this Supplemental Plan as well as the proposed depth, i s shown on the accompanying Location Plat, enclosed herewith as Attachment I I , and i s described as follows:

Additional Location

*F* SL: 2900' FSL & 2700' FEL of Hain Pass 209 TVD: 3700'

Water depth ln this block i s approximately 174 feet.

4. Geological /Geophysical Information

A structure map which i l lustrates Pelto'e current interpretation of Main Pass Block 209 is enclosed herewith as Attachment I I I .

5. Shallow_Ha2ards_Report

A high resolution, multi-sensor geophysical survey was conducted over the entire block. A Shallow Hazards Analysis at this location is enclosed as Attachment IV.

6. Onshore Faci 1 i t les

The aervice base for this area v i l l be Venice, Loulalana. This will be an established fac i l i ty that will require no modifications.

7. PollutlonJPreventlon Information

Pollution prevention control measures v i l l be ln accordance vith OCS Order No. 7. Pelto has on f i l e vith the HHS an C i l Spi l l Contingency Plan for the Gulf of Hexico. In the event of a sp i l l , this Plan v i l l be actuated. Pelto is a member of Clean Gulf Associates vhich provides s p i l l containment equipment and clean-up equipment at six Halliburton Service Bases on the Gulf Coest:

Galveston and Rockport in Texas; Grand Isle, Cameron, Venice and Intracoastal City in Louisiana. I f a sp i l l should occur from the proposed operations, the equipment located at Venice, Louisiana vould be utilized f irst , vith additional equipment moved in from other bases, i f necessary. Fast boat response vith o i l boom,

skimmers, pump and storage tanks would require approximately 10-12 hours! including preparation time. A heavy equipment system response would require sapproximately 20-28 hours^ including six hqWsj preparation time.

Drill/ cuttings and .excess drilling fluids v i l l be disposed of in accordance with applicable environmental regulations. The drilling fluid components and additives to be used are enclosed herevith ss Attachment V.

8. Safety and Environmental Safeguards

Safety features during drilling operationa v i l l include veil control and blovout prevention equipment that meets or exceeds the requirements of OCS Order No. 2.

Oil in sny form shall not be disposed of into the vaters cf the Gulf.

Liquid vaste materials containing substances vhich may be harmful to aquatic l i f e or vildlife, or injurious in any manner to l i f e or property shall be treated to avoid disposal of harmful substances into the vaters of the Gulf.

Drilling muds containing o i l are not disposed of into the Gulf. This type of material i s loaded and barged to shore for proper disposal. Drilling mud containing toxic substances i s neutralized prior to disposal.

Drill cuttings, sand and solids containing o i l are not disposed of into the Gulf, unleas the oi l has been removed.

The subject offshore mobile drilling unit i s equipped vith drip pens under the rig floor. All o i l from diesel engines i s pumped to a sump and then pumped into barrels for return to an onshore site.

Operator pereonnel are Instructed in the techniques and methods neceaaary to prevent pollution. Non-operator pereonnel are inatructed and eupervieed to insure thet non-pollution practices ere edhered to.

The f a c i l i t i e s ere inepected deily.

Enclosed ere copies of the folloving informetion:

ATTACHMENT NO.

I Rig Information I I Location Plats (Well & Vicinity) I I I Structure Map IV Shallow Hazards Analysis V List of Mud Components and Additives

Also enclosed ife fh» associated All Quality Reviev.

ATTACHMENT I

30" - 500* WP Annular Preventer

6" - 20000 VP Manual Cata Valva

6" air-operat< remote contro: b u t t e r f l y v a l '

30" x 1" W.T. Drive Pipa

6" - 2000// VP hydraulic operated remote controlled gate valva

6" Taa

6" air-operat remote contrc b u t t e r f l y va3

Typica l D i v e r t e r HOOK-UP

OSS*

ATTACHMENT I

2" - 10,000# Hydraulic Optra tad

Gat* Valvt

2 H - 10t000# Manual Gata Valva

)3-5/8" - 5.000# WT Hydril "CK"

000* WP aron

Doublt v/Plpt Rant top & Blind Rama bottom

4" - 10,0001 Hydraulic /~" Oparatad Gata Valv*

- 10,0001 Manual Gat* Valva

. 13-5/8" - 10,00 I ̂ Camer

Typ* "U" Single

0001 VP ron

w/ Pipt Rams

Tvj>1( i1 _BO_r_ St nyV Arr.inf.cnK n l

BLOC K 209

ceuo OH CO. OCS-O- 3717

Sur Loc Wtll " F

f'T-

ATTACHHENT II N

• I ITO OU COMPANY OCS-G-5717 WEU M f

PE R MST PLAT MAIN PASS AREA

|"t 2000* KV29/S7

MAIN PASS 209

VICINITY MA*

4

DRILLING HUD COMPONENTS

COMMON CHEHICAL OR CHEHICAL TRADE NAHE

Aluminum Stearate "AXTAFLO-S" Barite Calclua Carbonate Calclua Chlordie Calclua Oxide Calclua Sulfate Carboxyaethyl Celluloae Caustic Potash Caustic Soda Chrome Lignite Chroae Lignosulfonate Drilling Detergent

•E-p*r Ferrochrome Lignosulfonate Gel

Gypsum Lignite Lignosulfonate "Hud Sweep* "HOR-REX* "Shale-Trol" Sapp Sode Aeh Sorlum Bicerbonete Sodium Carboxymethyl Cellulose Sodiua Chloride Sodium Chromate Starch •TX-9010" "T03Q-Tria" "Black Magic" "Black Haglc Supermix" Dieeel

"Jelfleke" HICA "Pipe-Lex" "Well-Nut" Wood Fibers

DESCRIPTION OF HATERIAL

Aluminum Stearate Nonionic Surfectent Barium Sulfate (BaSo4) Aregonlte (CaCo3) Hydrophilite (CeC12) Lime (Quick) Anhydrite (CeS04) Carboxymethyl Cellulose Potassium Hydrate Sodium Hydroxide (NeOH) Chrome Lignite Chrome Lignosulfonate Soap Non-toxic, biodegradeble defoaaer Derived from wood pulp Sodium montmorillonite, bentonlte, attapulgite CaSo4.2H20 Lignite Lignosulfonste Cement Pre-flush Hydroloyzed Cereal solid Organo-aluminum complex Sodium Acid Pyrophosphate Sodium Cerbonete NeHC03 Sodium Carboxymethyl Celluloae NeCl NaCr04.10H20 Corn Sterch Biodegradable drilling lubricant Biodegradable drilling lubricant Oil baa* aud cone. Sacked concentrated oi l base aud Used to mix certain loss-circula­tion p i l l s Plastic fo i l , shredded cellophane Loss circulation i i t e r i e l Surfectent mixed with dieael Ground walnut shells Loss-circulation materiel

ATTACHM NT V

HiliM* HiliMllliflil!

P.O. Box 218753 Houston, Texas 77218 713-558-0607

Noveaber 3, 1987

PROJECTED AIR EMISSION SCHEDULE FOR EXPLORATION PROJECT

OENERAL INFORMATION

Location of F a c i l i t y :

Diatanc* Offshore: Nam* of Rig/Platforn: Oparator:

r o n t a c t Person: Total Well Footage to be D r i l l e d Dat* D r i l l i n g W i l l Begin:

Hain Paaa Area Block 209 OCS-G 5717 45 ni les Jackup Pelto O i l Coapany 500 Dallas, Suit* 1800 Houaton, Texas 77002 Jeffrey R. Hughes 4020' Deceraoer 1, 1987

BA2QR. SQUIB <QfF5H0*E>

Fov*r ueed aboard d r i l l i n g vessel ; approximate footage d r i l l e d 4020'.*

Emitted

CO so

2 NOx VOC TSP

Projected Eaissions ( l b s / d a v ) t o n s / y * a r

1987

(64) (20)

(299) (24) (21)

.80

.25

3. 74 .30 .27

• Based on 60 hphr/ft. froa Tabl* 4-3, "Atmospheric Emissions froa Offshore Oix and Gaa D*v*lop**nt and Production", EPA No. 450/3-77-026, Jun*, 1977.

Emission factore froa Tabl* 3.3.3-1, "Ccapilation of Air Pollutant Emission Factors:, EPA Report AP-42, August, 1977.

Projected Air Emissions Pelto Oil Conpany

Hain^Peaa Area Block 209 j

Pnge 2 j

MINOR SOURCES (OFFSHORE)*

Including helicopter landing and take-off (7 trips/week); aupply boata (3 trips/week); and crev boats (3 trips/week); loading and unloading operationa and incineration of vaate paper (average 750 pounda of vaate per month).

Projected Ealaa Enltted <t°na/year> Substance 1987

CO . 14 SO .01

2 NOx .02 VOC .01 TSP . Jl

• Tables 3.2.1-3, 3.2.3-1, and 2.1, "Compilation of Air Pollutant Eaission Factors", Third Edition, EPA Report AP-42, August, 1977.

TQTA.L All gPURCgS <TONS/YEAR)

1987 Q0 SO NOX VOC TSP

Major .80

2

.25 3.74 .30 .27 Hinor •02 Total .94 .26 3. 76 .31 .28

MBN0RE SOURCES

These should be about the sane aa alnor aourcea unleaa nev fac i l i t iea are inatalled at the onahore bnne. No additional fac i l i t iea ire required or planned nt thla tiaa.

EMISSION EXEHPTIO'. t/CTERHINATION

2/3 2/3 For CO: E = 340GD * 3400 (45) • 43,015 tona/year For NOx, VOC, TSP & SO : E * 33.3D ' 33.3 (45) • 1499 »ona/yenr

2

An per DOI/MMS regulations, thla facility ln exempt froa further nir qunlity reviev nn It haa been determined that ita operntlonn v i l l not hnve algnificnnt ndverse environmental inpact on air quality.