•trpa! sped; kent i flnffir - bsee data center · viscosity: fluid loss: plastic viscosity:...

G - LA /

I n Re^-ly Pcfor Toj FO-2-1 June 30 . 1967

Corpus C h r i s t i OU and Cas Uwpany A t t e n t i o n : r. Joe E. i.bkow, l r . Post Of f ic© L«x 2«?8 Corpus C n r i s t i , Texas 7840:-»

Gentlament

Reference Is uade t o your Supplemental Plan of E x p l o r a t i o n recolveC June 22$ 1967, amended June 24, 1967, f o r L t ^se OCS-G 6147, b lock 66, Mtgfc Is land Area. T i l l s lan Inc ludes the a c t i v i t i e s proposed fo r Wel l ft.

I n accurdance «1tit 30 CFR 250.34* rev Hew Jeceuter 13* 1979* and our l e t t e r dated January 29, 1979, t i t l s p lan I s hereby d«ien»1ncd t o be conp le te and I s nov being considered f o r ap o v a l .

f o u r plan cen t re ! number i s S-197E and should be referenced In your coturtunKation and corr . :.^ondence concerning t h i s p l a n .

S incere ly you rs .

•Trpa! Sped; Kent I flnffir 5U). J. L o u r g e o i i

Regional Superv1sor F i e l d Operat ions

Information Sorviaea ?w*uwt

Af»o • 512 83C *

CORPUS CHRISTI OIL AND GAS COMPANV TM{ 600 Bull DING

P O »OX 2928

CORPUS CHRISTI TEXAS 78403

June 23, 1987

U. S. Department of Interior Minerals Management Service Off ice Rules and Production

"01 Elmwood "ark Blvd. i.ow Orleans. A 70123

A t t n : Mike Tolbert

RE: Third Supplemental Exploration Plan Block 86, OCS-G-61J47 High Island Area Gulf of Mexico

As requested, I am enclosing nine copies of the mud additives for wells to be d r i l l e d in this block.

/

Yours very t ru ly , ,

/ Jim Herring / Pr-nf ROD- V

JCH/bh

encl .

Prof. Reg. Engineer '-

DATE; OCTOBER 20, 1983

COMPANY: CORPUS CHRISTI OIL & GAS COMPANY

ATTENTION: WR. JIM HERRING

WELL:

LOCATION:

BLOCK 86

HIGH ISLAND AREA OFFSHORE TEXAS

COPIES:

PREPARED BY: J. C. COOPER DISTRICT ENGINEERING MANAGER DRILLING FLUIDS HOUSION DISTRICT

igGopar S U G G E S T E D D R I L L I N G F L U I D

P R O G R A M

DEPTH INTERVAL:

MUO TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

PLASTIC VISCOSITY:

YIF..D POINT:

0' TO 3,000'

SEAWATES /MAGCOGEL

MAGCOBAR, MAGCOGEL, CAUSTIC SODA, AND

LIME

8.8 TO 9.0 l/GAL.

45 TO 50 SEC/QT.

NO CONTROL

5 TO 10 CPS.

15 TO 20 #/100 SQ. FT.

PROCEDURE:

SPUD WELL WITH SEAWATER AND PREHYDRATED MAGCOGEL.

SET SURFACE CASING AT 3 ,000 ' .

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCREENS

20 TO 40 MESH - REDUCE WHENEVER

POSSIBLE

NOT!; Stt REVERSE SIOC FOR IIAIIUTY CLAUS!

MaocoHar (ORESS£}£) S U G G E S T E D

D R I L L I N G F L U I D P R O G R A M

DEPTH INTERVAL:

MUO Tf PE:

ADOITIVES:

MUD WE.GHT:

VISCOSITY:

FLUID LOSS:

PLASTIC VISCOSITY:

YIELD POINT:

3,000' TO 8,000'

TANN-A-THIN/MAGCOGEL

MAGCOBAR, MAGCOGEL, CAUSTIC SODA,

LIME, SPERSENE, AND TANN-A-THIN

9.0 TO 10.0 #/GAL.

32 TO 38 SEC/QT.

25CCS TO 12CCS

5 TO 12 CPS.

12 TO 15 1/100 SQ. FT.

PROCEDURE:

DRILL CEMENT AND TEN FEET OF NEW FORMATION. TEST THE SURFACE CASING

TO A 14.0 PPG BEFORE DRILLING AHEAD.

BEGIN ADDITIONS OF DRILL WATER AND TANN-A-THIN TO CONTROL THE FLOW

PROPERTIES AND FLUID LOSS IN THE DESIRED RANGE.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCREENS


POSSIBLE

NOtf : SEE REVERSE SIDE fOR UAIUITY ClAUSt

PAGE .OF.

S U G G E S T E D D R I L L I N G F L U I D

M

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

PLASTIC VISCOSITY:

YIELD POINT:

8,000' TO 8,500'

SPERSENE/TANN-A-THIN



10.0 TO 12.0 l/GAL.

36 TO 44 SEC/QT.

12CCS TO 8CCS

6 TO 16 CPS.

10 TO 12 #/100 SQ. FT.

PROCEDURE:

BEGIN ADDITIONS OF SPERSENE AND CONTINUE ADDITIONS OF TANN-A-THIN TO

CONTROL THE FLOW PROPERTIES AND FLUID LOSS IN THE DESIRED RANGE.

HAVE A CENTRIFUGE OPERATIONAL BY 8,500'.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER .

SWACO SUPER SCREENS

CENTRIFUGE


POSSIBLE *

ATTENTION:

PORE PRESSURE WILL INCREASE RAPIDLY IN THIS INTERVAL. MONITOR HOLE

CONDITIONS CLOSELY.

i " *0 -177 0 NOTI: SCE REVERSE SIDE FOR UA8ILITY CLAUSE


P R O G R A M

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

PLASTIC VISCOSITY:

YIELD POINT:

8,500' TO 8,800'

SPERSENE/TANN-A-THIN



12.0 TO 12.5 #/GAL.

40 TO 44 SEC/QT.

8CCS TO 6CCS

12 TO 18 CPS.

8 TO 12 I/1U0 SQ. FT.

PROCEDURE:

CONTINUE ADDITIONS OF SPERSENE AND TANN-A-THIN TO CONTROL THE FLOW

PROPERTIES AND FLUID LOSS IN THE DESIRED RANGE.

SET THE 9 5/8" CASING AT 8,800' OR WHEN A 12.5 PPG MUD IS REQUIRED.

SOLIDS EQUIPMENT:

D-SANDER

D-S ILTER

SWACO SUPER SCREENS

CEN "RIFUGE


POSSIBLE

ATTENTION:

PORE PRESSURES WILL INCREASE RAPIDLY BELOW 8 .500 ' . MONITOR HOLE CON

DITIONS FOR A TRANSITION ZONE.

i M 4 G - J 7 7 O NOTI: SEE «Evt«SE SIDE KM UABIUTY CLAUSE


P R O G R A M

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

HT-HP:

PLASTIC VISCOSITY:

YIELD POINT:

8,800' TO 9,000'

SPERSENE/XP-20/TANN-A-THIN

MAGC.8AR, MAGCOGEL, CAUSTIC SODA.

LIME, SPERSENE, TANN-A-THIN, AND

XP-20

14.0 TO 14.5 l/GAL.

40 TO 45 SEC/QT.

6CCS OR LESS

16CCS TO 15CCS

16 TO 24 CPS.

8 TO 12 #/100 SQ. FT.

PROCEDURE:

DRILL CEMENT AND TEN FEET OF NEW FORMATION. TEST THE 9 5/8" SEAT TO

A 17.2 PPG EQUIVALENT BEFORE DRILLING AHEAD. INCREASE THE MUD WEIGHT

. TO 14.0 PPG BEFORE DRILLING AHEAD.

BEGIN ADDITIONS OF XP-20 FOR H.T.H.P. FLUID LOSS CONTROL.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCREENS

CENTRIFUGE


POSSIBLE

ATTENTION:

MONITOR HOLE CONDITIONS CLOSELY FOR RAPID PORE PRESSURE INCREASES.

I -ta-rna NOTE: SEE REVERS SIDE FOR LIABILITY CLAUSE


P R O G R A M

DEPTH INTERVAL:

HuD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

HT-HP:

PLASTIC VISCOSITY:

YIELD POINT:

9,000' TO 9,700'

SPERSENE/XP-20/TANN-A-THIN



XP-20

14.5 TO 15.0 #/GAL.

40 TO 45 SEC/QT.

6CCS TO 4CCS

15CCS TO 14CCS

19 TO 26 CPS.

8 TO 12 1/100 SQ. FT.

PROCEDURE:

CONTINUE ADDITIONS OF SPERSENE, TANN-A-THIN AND XP-20 AS NEEDED.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCREENS

CENTRIFUGE


POSSIBLE

ATTENTION:


• U C - J 7 T O NOT!: SEE REVERSE SWS FOR UABIUTY CLAUSE

Magcoljaf (DRESSERJ S U G G E S T E D

D R I L L I N G F L U I D P R O G R A M

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

HT-HP:

PLASTIC VISCOSITY:

YIELD POINT:

9,700' TO 10,000'

SPERSENE/XP-20

MAGCOBAR, MAGCOGEL, CAUSTIC S00A,


XP-20

15.0 TO 15.3 #/GAL.

42 TO 46 SEC/QT.

4CCS OR LESS

14CCS OR LESS

22 TO 30 CPS.

8 TO 12 1/100 SO. FT.

PROCEDURE:

CONTINUE ADDITIONS OF SPERSENE AND XP-20 AS NEEDED TO CONTROL THE

FLOW PROPERTIES AND F.UID LOSS IN THE DESIRED RANGE.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCRTENS

CENTRIFUGE


POSSIBLE

i " ' 0 - I 1 7 O NOTE: SEE REVERSE SIDE FOR LIABILITY C LA JSC


P R O G R A M

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD WEIGHT:

VISCOSITY:

FLUID LOSS-

HT-HP:

PLAST. a .

YIELD PUINT: .ITY

10,000' TO 10,500'

SPERSENE/XP-20



XP-20

15.3 TO 15.9 #/*AU

42 TO 46 SE /QT..

4CCS TO 3CCS

14CCS OR LESS

24 TO 33 CPS.

8 TO 12 '/IOO SQ. FT.

PROCEDURE:

CONTINUE TREATMENT! AS NEEDED.

SET 9 5/8" LINER AT 10,500' OR WHEN A 16.0 PPG MUD IS REQUIRED.

SOLIDS EQUIPMENT:

D-SANDER

D-oILTER

SWACO SUPER SCREENS

CENTRIFUGE

80 TU 100 MESH - REDUCE WHENEVER

POSSIBLE

ATTENTION:


; set REVERSE sioe ron UABUITY CLAUSE

S U G G E S T • P I L L I N G ?

P P O G U A

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES:

MUD '..TIGHT:

VISCOSITY:

FLUID L'SS:

HT-HP:

PLASTIC VISCOSITY:

YIELD POINT:

10,500' TO 11,010

SPEP.SENE/XP-20

MAGCOBAR, MAGCOGEL. CAUSii" SODA,

LIME, SPERSENE, TANN-A-THIN, ANO

XP-20

15.9 TO 16.6 #/GAL.

42 TO 4b SE<7QT.

3CCS jti LESS

14CCS OR LESS

28 TJ ~t CPS.

B Tf 12 #/100 SQ. C T.

."•ROCEDURE:

LKfLL CEMENT AND TEN FEET OF NEW FORMATION. TEST THE 7 5/8" CAC

SEAT TO AN 1 8 . 5 PPC EQUIVALENT BEFORE DRILLING AHEAD,

CONTINUE ADDITIONS OT SPERSTNT AND XP-20 AS NEEDFH.

SQLICJ EQUIPML.M-

D-jAriPEf

D-SILTEi'

SWACO s u w GREENS

CENTR IFUGL

80 TO 100 MESh REDUCE WHENEVER

POSSIBLE

ATTENTION.

PORE PRESSURES IN THIS INTFIWAL COUL: INCREAiE RAPIDLY.

1 " • 5 - ) " 0 NO , I St,' .'tVlISI StOC FC« UAtafTY ClAO«

S U G G E S T L T O R I L L I N G F U S D

P S O O r i A l V l

DEPTH INTERVAL:

MUD TYPE:

ADDITIVES

MUD WEIGHT:

VISCOSITY:

FLUID LOSS:

HT-HP:

PLASTIC VISCOSITY:

Y T ELD POINT:

.oJO TO 1?,000'

SPER'ENE/XP-20

IAGCOBAH, MAGCOGEL. CAUSTIC SODA,

LIME, SPEPSEME. TANN-A-THIN, ArJD

XP-20

16. G *«1 I f . 7 f/GAL.

42 TO 46 SEC/QT.

3CCS OR LESS

14CCS OR LESS

29 TO 38 CPS.

8 TO IC #/100 SQ. FT.

PRXTOURE:

CCN.INUL A C T MS OF SPERSENF AND XP-20 AS NEEDED.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTEP .

SWACn SUPER SCkcENS

CENTRIFUGE

f>0 10 100 MESH - REDUCE WHENEVER

POSSIBLE

l •0 - ITT4) NOTI: M I MVtftSI SIM KM UAUUTY CLAUSI

Maqcobar S U G G E S T E D D R I L L I N G F L U I D

P R O G R A M

DEPTH INTERVAL:

ML. TYPE:

AO* IfkVFS:

MUD WEIGHT:

VISCOSITY:

FLUID L05S:

HT-HP:

PLASTIC VISCOSITY:

YIELD POINT:

12,000' TO 13,000*

SPERSENE/XP-20

MAG LOBAR, MAGCOGEL, CAUSTIC SOD/*.

LIME, SPERSENE. TANN-A-THIN AfD

XP-20

16.7 #/GAL.

44 TO 48 SEC/QT.

3CCS OR LESS

14CCS OR LESS

29 TO 3P r D S.

8 TC 1* //ICO SQ. FT.

PROCEDURE:

Cotfi'"ME CMCMICAL TREATMENTS AS NEEDED.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

5WACO .oPER SCREENS

CEN^IFUGE

80 TO ICO MESH - RCDUCE WHENEVER

POSSIBLE

MTENTION:

SOME OFrSfcT cMA HAD A 17.6 TU .7.7 PPG MUD IN TMS INTERVAL.

i M»0~l>70 NOTI: SCE REVERSE SIDE fOX UAOUIT I CLAOSC

S U G G E S T E D • R I L L I N G F L U I D

P R O G R A M

i

DEPTH INTERVAL: 13,000' TO 14,000

SPERSEM 'XP-2C MUD TYPE:

ADDITIVES: MAGCOB.'", MAGCOGE ., CAUSTIC SODA,


;o-20

16. T TO 17 l/GAL.

44 TO .8 SEC/QT.

3CCS IR LESS

Ml'n • .GHT:

V'.iC>',ITY: CLUID LOSS:

HT-HP: 14CCS OR LESS

PLASTIC VISCOSITY: 30 TO 40 CPS.

YIELD POINT: 8 TO 14 1/100 S'J. FT.

PROCEDURE:

CONTINUE CHEMICAL TREATMENTS AS NEEDED TO CONTROL THE FLOW PROPERTY

AND FLUID LOSS IN THE DESIRED RANGE.

SOLIDS EQUIPMENT:

D-SANDER

D-SILTER

SWACO SUPER SCREENS

CENTRIFUGE


POSSIBLE

ATTENTION:

OFFSET WELLS HAD A l ' . f i TO 17.7 PPG MUD IN THIS INTERVAL.

f ^ i r l : SCE •EVEHi' . .<€ FC* UAUUTY CLAUSC

SAFETY AMD ENVIRONMENTAL NO. 4

Data H / 2 9 / 7 6

ISSUED B Y T H E SAFETY A N O E N V I R O N M E N T A L C O N T R O L D E P A R T M E N T

M A G C O B A R PRODUCTS L I S T I N G

IN A C C O R D A N C E W I T H USGS OCS ' 1 R D E R N O . 7

On O c t o b e r 1 . 976. the U S Geological Survey (Gulf o f M e x i c o Are. i ) made ef fect ive ' h r roisqd f j C F

Cider N o . 7. >'?wtirr. 1 - A { 2 ) of th is if requires in par t that an operator shall submi t '.vith the

A p p l i c a t i o n fo r I'erm.t j : i r i l l " a d e t a i l M list of dr i l l ing m u d c o m p o n e n t s , inc luding the comrr ion c. iemicr.

ur chemica l t raae name u l t?ch c o m p o n e n c . . " The f o l l ow ing l ist compl ies w i t h this requ i rement .

BEST MAILABLE COPY

1. BEN—EX: Anhydride copolymer

2. BIT L U B E : Mixture of neutralized phenolics. Components are wool grease. KOH, IPA in a hydrocarbon carrier.

3. CAUSTI2 POTASH: Potassium hydroxide (KOH)

4. CAUSTlT SODA: Sodium hydrox.de (NaOH). ly t

5. CELLOSEAL: Cellophane (fr»n<-ephane or celi.ilcse)

6. CE ASC/'- L: Calcium carbon,. ;e (limestone) and li lnrsuifonate

7. CEASTOP: .Sam* a: Ceascal • chromium pou»-..n n sulfate

' 8. CHIP SEAL. Shredded cedar fiber

9. CYPAN: So .um pclyacrylate (acrvlic polymer). Same »s Wl—100

10. D V - 2 2 : B i ' l . -t Black (natural gilsonite) and Manganese dioxide

11. DV—33: A deteT5e.1t alkylate in a hydrocarbon ca* ' t r

12. D IASEA! - M : C;?tci ^aeecus anr .nagnes um silicate

13. D C t ' V I S : Complex lo.-g ch»in b i opo l y rw iDoCteria on carbohydrates); Xantham Gum >>f polysaccharide.

14. D—D: Aqueous blend wiih diethanolan-.ides

I f . F L C X I T : Copolymer of scrylamide and acrylic acid (or Propenoic add)

16. 'NH IB ITOR 101: Mixtu e of hig* .r j lc-.ular weight morpholine type compounds (amine type) with IPA and aromatic naphtha

'.MHIBITOR 202: An orcanic salt • ih r igh molecular w ght orga.iic acid and amine polymers, IPA and ethylene oxide

in a hydrocarbon car'-?'

10 INHIB 'TOR 303: Mixture of high moleculai weight morphc* ne type compound? (amine type) with IPA

!9 KLEFM—UP: Blend of surfactants. Butyl cellosorwe and a monanvne detergent concentrate

20. KWtk T H I K : Bentonite (jodium montn ori l loniw) and polyacrytic acid

21. L IME: C i l c ium hydroxid'i

22. LOWATE: Calcium carb jnate (Limestone) (1 aturally occurring)

23. MC QUEBRACHO: Ta m.c acid nr tannin (ga> otanic add)

24. MAGCO 1 MC: Sodiu n carboxymethylcc-iiuiose or cellulose gun

75. M A G C O / '.WNl'M STEARATE: Aluminum stearatr.-or alurrinum >->itearate

26. MAGCO FuAMEH 76: Anionn. nd nonionic surfactar ts of the a'kanoicmide types

27. MAGCO M I C A : Mica (com(. ex s^cate). (natura'ly occur, ing)

O I L F I E L D PRODUCTS GnOUP. CRESSER INC.STRIES. INC. f O POX 6504. HOUSTON. TEXAS 7700S PRIN EQ IV U S f

28. MAGCOBAR: Barite (barium su' fote) (naturally occurring)

29. MAGCOGEL: Bentonite dodium montmoril lonite) (naturally occurring)

30. MAGCOLUBE: Blend of sulfurized triglyceride and an alkanolamide in a paraffinic hydrocarbon carrier

31. MAGCONATE: Petroleum sulfonate and lignite

T l . MAGCONOL: 2 ethyl hexanol (2-ethylhcxyl alcohol or octyl alcohol)

y y MAGCOPHOS: Sodium tetraphosphate (sodium polyphosphate)

34. MAGNESIUM OXIDE: Magnesia (naturally occurring)

35. M I X I C A L : Sized calcium carbonate (Limestone) (naturally occurring)

36. M U D FIBER: Crushed sugar cane (bagasse)

37. M Y - L O - J E L : Corn starch

38. M Y - L O - J E L PRESERVATIVE: Paraformaldehyde (paraform)

39. NUT PLUG: Ground and sized walnut and pecan shells

40. OS—1: Sodium sulfite and tannic acid catalyzed with a trace of cobalt chloride

41. CS—1—L: Ammonium bisulfite catalyzed wi th nickel chloride

42. O I L F A Z E : Formulated blend of fat., acid soaps, gilsonite. oxidized asphalt, manganese dioxide, and a drying clay

material

43. PIPE L A X : Blend of an oxazoline. wool grease, dispersed in a naphtha base

44. POLYBRINE: Magnesium carbonate (magnesite). calcium carbonate (Limestone), hydroxyethyl cellulose

45. POT ASS• I 'M CHLORIDE: Potassium chloride (potash muriate) '

46. RES'MEX "cpolymer of a sulfonated lignite and a sulfonated phenol-formaldehyde urea resin

.47. SE—11: Dodecyl benzene sulfonate and imidazoline in a hydrocarbon carrier

48 SI—1000: Pclyacryiate, phosthonate, glycerol in water

49. SALINEX-A lcoho l ether sulfate

50. SALT : Sodium chloride (salt) (naturally occurring)

51. SALT G E L : Attapulgite clay (Fuller's Earth) (naturally occurring)

52. SODA A S H : Sodium carbonate (soda ash) (naturally occurring)

53. SODIUM CHROMATE: Sodium chromate

54. SODIUM DICHROMATE: Sodium dichromate

55. SPERSENE: Chrome lignosulfonate

56. STAB ILHOLE : Asphalt and kaolin (natural clay)

57. SURFAK E: Formulated as 30 moi. ethylene oxide nonyl phenol (same as DME)

58. SURFAK M: Nonionic phenol; 30 moi. ethylene oxide surfactants (same as DMS)

59. T A N N A T H I N : Oxidized lignite fleonardite brown coal) (naturally occurring)

60. VG—69: Organophylic bentonite (treated w i th quaternary ammonium)

61. V E R T O I L : Formulated blend containing fatty acid soaps, gilsonite, oxidized asphalt, manganese dioxide, drying days

wi th organic sulfonated stabilizers

62. VISBESTOS, VISQUICK: Magnesium silicates

63. X—38: Iron carbonate (siderte) (naturally occurring)

64. XP—20: Mixture of oxidized lignite, sodium dichromate. and potassium hydroxide

65. XPK—20OO: Organic sulfonate in naphtha base solvents

65. 2INC CARBONATE: Zinc carbonate

67. ZINC CHROMATE: Zinc chromate

B t S T WMIA»£ COI

r_,no

Ar«aCod»512 888-9301

CORPUS CHRISTI OIL AND GAS COMPANY P. O. K>X 779

THf 600 BUILDING

COftWJS CHRISTI TEXAS 78403

June 19, 1987

U . S . Department of the I n t e r i o r H i n e r a l s Management Se rv ice O f f i c e Rules and P r o d u c t i o n 1201 Elmwood Park B l v d . New Orleans, Louisiana 70123

Re: T h i r d Supplemental E x p l o r a t i o n Pan Block 86 OCS-G-6147 High I s l a n d Area Gul f o f Mexico

Corpus C h r i s t i O i l and Gas Corapany i s the des ignated opera tor of OCS-G-6147 B l o c k 86, High Is land A r e a , Gu l f of Mexico and i s r eques t ing approval o f t h i s Supplemental E x p l o r a t i o n Program so t h a t ope ra t ions can be i n i t i a t e d t o d r i l l on Block 86. T h i s Plan i s being supplemented t o add one w e l l i n t h e NE/4 of the t r a c t . L o c a t i o n "K" i s new.

Enc losed i s the s u p p o r t i v e d a t a :

1. Copy of the Des igna t ion o f Operator, Form 9-1123.

2 . H i s t o r i c Sh ipwreck /P reh i s to r i c Si te Survey and Shallow Geologic Hazard Survey.

3 . Approval of emergency p l a n to c o n t r o l and remove o i l and waste s p i l l s . Updated December 18, 1986 and approved January 22, 1987.

4 . Bas i c development p l a n and explora tory map.

5. P l a t showing l o c a t i o n s o f proposed w e l l s and v e r t i c a l depths, measured depths and water dep ths .

6 . A i r q u a l i t y emission c a l c u l a t i o n s .

7 . General ized mud program t o be f o l l o w e d .

8. I n f o r m a t i o n showing the type o f d r i l l i n g r i g t o br used du r ing the e x p l o r a t i o n phase.

Y o u r e a r l y considerat ion o f t h i s request would be apprec i a t ed .

Yours very t r u l y ,

E. Eskew, J r . Vice P res iden t , O r * r a t i o n s

(Submit t n t r f p l l c a U to BjrproprtoU Kavtonal CKJ a m i C W or M i n i n g SuparrUv)

DESIGNATION OF OPERATOR

' Minerals Management Service T h r undersigned is, oo the rrcordi of thc H P H B R 9 D I B B B f l F J E £ £ £ & V bolder o f I cue

DISTRICT LAHD Orncs: New Orleans, Louisiana SUUAL No.: OCS-G 6247

aad hereby designates

NAME: Corpus C h r i s t i O i l and Gas Ccmpany ADDRZSS: P-O. Box 2928

Corpus Chr i s t - i , Texas 78403 - • as his operator and local agent, w i t h It i I ai ' thorit j to act in his behalf i n complying w i t h the lo ins o f the lease and regulations applicable thereto and on wbcm the supervisor or his representative m a j serve wntlen or oral instructions in securing compliance « i t h tbe Operating Regulations w i t h respect to (describe acreage to which this designation is applicable):

• A l l of Block 86, High Island area, OCS leasing map, Texas Map No. 7

I t is understood that this designation o f operator does not reb'rve the lessee o f rcsponsibilitj for compliance w i t h the terms o f the lease and tbe Operating Regulations. I t is also understood that this designation of operator does oot constitute an assignment of any interest lo the lease.

I D case o f default oo tbc part o f tbe designated op«r»|or, the lessee wiU make f u l l and prompt compliance wi th a l l regulalions, lease terms, or orders o f thc Secretary o f the Interior or his representative.

T i e lessee agrees promptly to not i fy the supervisor o f any "change in the designated open tor.

Corpus C h r i s t i Exp lo ra t ion Ccrnpany

• * . J^Ae~s^ , C p \ 0 . Box 2928, Corpus C h r i s t i , TX." 78403

/ Z - as ; romu) (A—J mi

ua KMOUKOO nmtm m a i i u - O ' T M - M t ie*

B t S T MAILABLE C0P>f

Re: OCS-G-6147 Block 86 High I s l a n d Area Gulf o f Mexico

I have reviewed Che data o b t a i n e d from the o r i g i n a l surveys and f rom r e s h o o t i n g the magnetometer surveys i n Block 86 and f i n d no evidence of s h a l l o w , a rchaeo log ica l , geo log ic or gas hazards at the a d d i t i o n a l proposed sur face l o c a t i o n . The a d d i t i o n a l su r face l o c a t i o n f a l l s i n an a rea o f near surface channe l ing but i s 500' f rom the eage of the c h a n n e l .

JCH/ba

United States Department of the Interior

MINERALS MANAGEMENT StRVlCE OULF OF MEXICO OCS REGION

1420 SOUTH CLEARVIEW PARKWAY NEW ORLEANS. LOUISIANA 7 0 1 23-2394

In Reply Refer To : FO-1 January 22 , 1987

Corpus C h r i s t i OM and Gas Company A t t e n t i o n : Mr. Joe E. Eskew, J r . Pos t O f f i ce Box 2928 Corpus C h r i s t i , Texas 78403

Gentleman:

Your letters dated December 18, 1986, and January 13, 1987, transmitted the results of the annual review of Corpus Christi Oil and Gas Company's Oil Spill Contingency Plan (OSCP). The plan Is hereby approved In compiiance with Paragraph 3.2 of OCS Order No. 7. I t has been file d In this office end copies have been sent to our District Offices.

Pl ease submit six copies of further revisions or modifications to •yOurTJSCPT

Sincerely yours.

D.^J. Bourg aws Regional Supervisor Field Operations

OIL SPILL CONTROL

BLOCK 86

Corpus C h r i s t i O i l and Gas i s a member o f Clean Gulf Associates and t h e r e f o r e has access t o t h e i r o i l s p i l l and containment equipnent. Corpus C h r i s t i O i l and Gas a lso has an agreement w i t h Peterson Mar i t ime Services Inc. t o f u r n i s h men and mater ials as needed t o handleany minor or major o i l s p i l l . A response t o any need f o r the type equipment w i l l cone f rcm Galveston, Texas and response time t o Block 86, High Island Area i s estimated to be w i t h i n 6 t o 8 hours.

BASIC EXPLORATION PLAN

Corpus C h r i s t i O i l and Gas Company plans to d r i l l eleven we l l s to p r o p e r l y e x p l o r e and develope B lock 86. Well No. 1 has been d r i l l e d as a s t r a i g h t h o l e . Wel l "A" w i l l be d r i l l e d as a s t r a i g h t ho le w i t h Wells B, C and u b e i n g d i r e c t i o n a l l y d r i l l e d f rom the surface l o c a t i o r . f o r Well " A " . Wells E and F w i l l be s t r a i g h t h o l e s . Wells G and I w i l l he d i r e c t i o n a l v I s d r i l l e d from the sur face l o c a t i o n of Well No. 1. Wells J and K w i l l be d r i l l e d d i r e c t i o n a l l y from a sepera te surface l o c a t i o n as shown on the enclosed l o c a t i o n p l a t . As can be seen f rom the a t tached s t r u c t u r e map, there a r e f i v e separate f a u l t b l o c k s to be explored at 6500 ' , 6800' 7100 ' , 7200' and 7 5 0 0 ' . Other sands down to 14,000' w i l l be penetrated and eva lua ted .

Corpus C h r i s t i Oi l and Gas Company w i l l set s u f f i c i e n t s t r i n g s to comply w i t h a l l U.S.G.S. r u l e s and containment of a l l f l u i d s i n the s t r a t a p e n e t r a t e d . A mud l o g g i n g u n i t w i l l be on l o c a t i o n to help evaluate a l l zones o f in te res t and t o m o n i t o r any gas i n the mud system. More d e t a i l e d d r i l l i n g in fo rmat ion w i l l be given when the s p e c i f i c w e l l d r i l l i n g permit i s reques ted .

The w e l l s w i l l be d r i l l e d w i t h a Le Tourneau j a c k - u p r i g ->ith onshore s u p p o r t f a c i l i t i e s i n the Sabine Pass Area. Rig i v a i l a b i ? . i t y i s a n t i c i p a t e d t o be August 15, 1987. D r i l l i n g time i s es t imated to be 45 to 60 days f o r each w e l l w i t h a l l e leven w e l l s to be completed w i t h i n f i f t e e n months.

G e o l o g i c evaluations c f each w e l l d r i l l e d may p o i n t out a d d i t i o n a l w e l l l o c a t i o n s needed f o r optimum e x p l o r a t i o n development o f the b lock .

JCH/b -

86

• A

Water Depth 46'

O E

o J

H

(

• K

Well A - Straight Hole Loc. 3700' FWL

1900' FNL

Well E - Straight Hols Loc. 3100' FW.

7400' FNL

Well F - Straight HoV Loc. 8300* FWL

5000' rSL

Well J - Surface Location r H L

; ')0' FSL

Well 1 - Stxaiijh ilole Loc. 5* '0' FEL

13 KV FT.L Well K - Straight Hole

Lo«;. 5f00' FEL FNL

• 1

CORPUS CHRISTI OIL AND GAS COMRANY

BLCCK 86 G-6147

High Island Area

Gulf Of Mexico

Scale 1" = 2000' Amended 2/18/86

CORPUS CHRISTI OIL AND GAS COMPANY

FEDERAL BLOCK 86

AIR QUALITY EMISSIONS

F e d e r a l B lock 86 i s loca ted approximatel . , 22 w i n from shore w i t h the d r i l l i n g equipment located 60 t o 70 feec aLc.-. ...e water l e v e l . Five w e l l s w i l he d r i l l e d to a dep th of ±10,000 feet each, three we l l s w i l l be d r i l l e c . t i a depth o f 12,000 f e e t , one w e i i w i i l be d r i l l e d to a depth o f 10 ,500 ect , one w e l l t o a depth of 11,500 f e e t and one w e l l w i l l be d r i l l e d t o • t o t a l depth o f 14,000 fee t f o r a t o t a l of 122,000 f ee t o f h o l e . I t Lt an t ic ipa ted t h a t i t w i l l requ ive 45 to 60 days to d r i l l each w e l l o r a to\ a l of 17 months f o r a l l eleven w e l l s .

Tne J . Storm I d r i l l i n g r i g o r one of s i m i l a r design w i l l be used f o r t h i s p r o j e c t . Using the power p lan t s on the r i g and the tir»e est imate t o d r i l l the w e l l s , the f o l l o w i n g emissions were c a l c u l a t e d f o r d r i l l i n g t e n w e l l s to a combined t o t a l depth of 122,000 f e e t .

NOX CO VOC S0 2 TSP

90 .3 t o n / y r . 19.6 t o n / y r . 7.2 t o n / y r . 6 t o n / y r . 6.4 t o n / y r .

The above ca lcu la t ions were obtained us ing:

1 . Based on 60 HP h r / f t f r o m Table 4-3 "Atmospheric Emissions f rom Of f sho re O i l and Cas Development and Product ion" , EPA 450/3-77-026, June 1977.

2 . Emiss ion factors f rom Table 3 .3 .3 . -1 "Compi la t ion o f A i r P o l l u t a n t Emiss ion Factors" T h i r d E d i t i o n , EPA AP-42, August 1977.

The above emission i s less t h a t 91 tons/year o f any o f the above compounds and a t t h i s l oca t ion , should disperse very r a p i d l y . On t h i s basis i t i s b e l i e v e d that a l l emissions w i l l be w i t h i n acceptable standards.

JCH/ba

UT-JP.HL. •• MI——• 11

S U G G E S T E D G R I L L I N G F L U I D

P R O G R A M

CORPUS CHRISTI OIL & GAS BLOCK 86-L #1 N. W. 1/4

HIGH ISLAND AREA OFFSHORE TEXAS

CASING PROGRAM:

13 3/8" SURFACE CASING AT 3,000 ' , FRACTURE GRADIENT 14.4 PPG 9 5/8" CASING AT 8,800', 12 1/4" HOLE OR A 12.5 PPG MUD WEIGHT, FRACTURE GRADIENT 17.3 P 7 5/8" CASING AT 10,500', FRACTURE GPADIENT 10.6 PPG

SUGGESTED PROPERTIES

RUB rTOtT ATT DEPT)! WEIGHT VISCOSITY PV YP W/L

0' - 3,000' 8.8 - - .0 45 - 50 5 - 10 15 - 20 NO CONTROL

3,000' - 8,000' 9.0 - 10.0 32 - 38 5 - 12 12 - 15 25cc's-12cc'$

8,000' - 8,500' 10.0 - 12.0 36 - 44 6 - 16 10 - 12 12cc's-8cc :s

8,500' - 8,800' 12.0 - 12.5 40 - 44 12 - 18 18 - 12 8cc's-6cc's

8,800' - 9,000' 14.0 - 14.5 40 - 45 16 - 24 8 - 12 6cc's or less

9,000' - 9.700' 14.5 - 15.0 40 - 45 19 - 26 8 - 12 6cc's-4cc's

9,700' - 10,000' 15.0 - 15.3 42 - 46 22 - 30 8 - 12 4cc's or less

10,000* - 10.500' 15.3 - 15.9 42 - 46 24 - 3. 8 - 12 4cc's-3cc's

10,500' - 11,000' IF. > - 16.6 42 - 46 28 - 36 8 - 12 3cc's or less

11,000' - 12,000' 16.L - 16.7 42 - 46 2Q - 38 8 - 12 3cc's or less

12,000' - 13,000' 16. 7 44 - 48 29 - 38 8 - *4 3cc's or less

13,000' - 14,000' 16.7 - 17.1 44 - 48 30 - 40 8 - 14 3cc's or less

MARINE DRILLING COMPANY oC^ "J STORM I"

Capacity 20,UOO'

Twin Null Mobil Platform - Hydraulic Self-Elevating-Drilling Capacity 20,000' - Propulsion Assist

Drawworks: NSCO 130 double drum powered by three (3) Superior PTD-8 diesel engines, Parkersburg 70* double hydromatic brake.

Pumps: Tvo (2) National 10P-130 triplex pumps, each independently powered by one (1) EMD 16-567 diesel engine.

Derrickt Continental-EMSCO 147' , 1,400,0009 capacity, NSCO 750-T c.own block with 7-50" diameter sheaves grooved for 1 3/8" line - 500 ton capacity.

Trmvmtling Equipment! NSCO 65OC-S00 ton block-hook w.'th NSCO N8 IS swivel, 450 ton capacity. j

Rotary: NSC^ C-375, mechaniaally driven from drawworks.

Mud System: 1500 bbls. tank capacity, two (2) 6* x 8" centrifugal mud mixing pumps and two (2) 6" x 8" centrifugal charging pumps, three (3) Turbo-Mixers, Demco desanders. Cameo desilter, dual standpipe and hoses, well control degasser and dual Rumba shale shaker.

W<~-'-©yt Preventers: One 20" Hydril (bored to 21k"), one 13 5/8" 5000? WP GK Hydril, onn 13 £/8K 10,(>00f , P Cameron Type "W double, and enm 13 5/8' 10,0000 WP C.vron Type ' U" Single each w±*b two (2) 4" outlets,

J12S treated, Koomey closing unit, 160 gal. 3C00 psi accumulator, 'Seven (7) station remote control.

Electrical System: Two (2) 500 KU generator units powered by 8-567 EMD engine.

Drill String: 15,000 f t . of 5" O.D. X.H. 19.50 l b / f t Range 2, Grade E drill pipe, 21-7k" O.D. 2 7/8" I.D. x 30' drill collars with Sh" B-90 connections, 2-8" O.D. x 2 3/4" I.D. x CO' drill collars with 6 S/8" H-90 connections.

Cementing System: Halliburton skid unit. Model (167 KPCF, twin BT 400 GM, 8071 unit, three (3) Halliburton 1350 cu. f t . each bulk cement tanks, one surge tank.

Communication System: RF Communication "singleside Band" radio, VHF Marine telephone, ship-to-shore radio.

Platform Capacities: Drilling water 4848 bbls., potable water 40< bbls., fuel oil 1,796 bbls., bulk mud 3,900 cu. f t . , sack mud 3,000 -arks, two (2) link-belt 50 ton cranes, air conditioned quarters i.vT galley for 48 men.

Hull Specifications: Maximum water depth 225' non-hurricane, 180 ^urricana. season. Mat: 210' long by 170' wide by 10' high with slot 90' wide by 87' long. Platform: 176' long by 109' wide with slot 58' long by 50' wide.

Propulsion System: Two (2) 8' diameter, 3-blade profilers, each driven by one EMD 12-567 engine.

Survival Equipment: Rig is equipped with tl.'O (2) whittaker Survival Caorules

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