TELEX 58-4124 PHONE 504-581-2811

O D E C O O I L fi O A S C O M P A N V OOECO BUILDING • 1600 CANAL STREET

MAIL TO PO BOX 61 780 NEW ORLEANS LA 70161

June 23, 19S9

U.S. Department of the Interior Hinerals Management Service Offioe of Pield Operations 1201 Elmwood Park Boulevard Mow Orleana, LA 70123-2394

Attentioni Nr. Daniel Bourgeois

Not Supplemental Plan of Exploration 001 9 6910 Eugene Ialand Bloek 265 Locations A-4, F , G, t H

Gentlement

Enclosed here* th are nine Beta of Supplemental Plan for tho above referenced area. Wa sssewely request that • speedy review bo made to determine whether the plan ia couple te. Should additional data bo raquirad, plaaaa advise ua immediately.

Every effort you extend in order to affect an early approval of this plan will be greatly appreciated.

Tours vary truly,

I . t . Breda

Oil 8 Gas Supervisor

ESB/dca Enclosures

Pu*uc

not ODECO OIL I. OAS COMPANY

SUPPL.E.1ENTAL PLAN OF EXPLORATION

EU6ENE ISLAND BLOCK 2 4 5

LOCATIONS A - A , F , 0 , 1> H

SUBMITTED BY I . . C ^ ^ C i l j A C S . B r e d *

DATt I m "

SSB.

USL

i s . T B H A T X V B STARTING AHD e m w u m m D s n s , S U R F A C E AHD BOTTOM

S O U LOCATIOHS, TOTAL DEPTHS AHD OBJSLTlVtS OF nUfKMMD HELLS 1,1,3

IXZ. F A C I L I T Y 3

XV. O I L S P I L L COHTIHGEHCY FLAH 3,4

V. O I L S P I L L TRAJECTORY SI MULATTO* 4 ,5

FX. EQUIPMENT LOCATION AMD RESPONSE TIME 6 ,7 ,8

F Z I . DISCHARGE OF POLLUTANTS •

F U X . itYDSSJCMH SULFIDE CONTINGENCY FLAM 9

XS. TRANSPORTATION ROUTES 9

I . SAAB OF OPERATIONS 9

EX. FUEL CONSUMPTION - DRILLING OPERATIONS 9

E X I . SAFETY STANDARDS AMD PROGRAMS - DRILLING OPERATIONS 9,10

SXXX. MBM OF UNUSUAL TECHNOLOGY 10

XXV. TYPE DRILL MOD USED AMD CHEMICAL COHJCSSMITI 10,11,12

I V . EMST TOM MASASDS SURVEY 11

XVI. GASEOUS EMISSION DATA 11*12

X V I I . ATTACHMENTS 12

ODECO OIL It GAB COMPANY

SUPPLEMENTAL PLAN OF EXPLORATION

EUGENE ISLAND 249

GENERAL PLAN

In accordance with 30 CFP 250.30 , rev iaed A p r i l 1, 19B8, t h i a Supplamenta1 P l a n of Explorat ion i a baing submitted. Our plan i a to d r i l l four add i t iona l expl oratory wa l la on t h i a laaaa. Tha l o c a t i o n * of thaa* w a l l * ara daalgnatad aa OCS-G-6720 A - 4 , F , G, Ir M. N u a t n c a l designation M i l l bo aaaignad to w a l l a F , G, tt H whan a p p l i c a t i o n f o r d r i l l i n g paroita a r a submitted, should tha propoaad wal l a hava no commercial product ion , thay w i l l ba plunged and abandoned with cas inge removed 15' below mud l i n e

TENATIVE ST AAT INQ AND. CONPLETION DATES i SURFACE Afffi BOTTOM dQLm LDCftTIPffS. TOTAL DEPTHS, fibJfi OBJECTIVES OF PRPf-PSEP WELLSI

OCS-G-6720, Mell BA-4 (Thia we l l w i l l be d r i l l e d from a template tha t i a 1natal led a t the #3 and BS l o c a t i o n and eventually A p la t form w i l l be met.;

Eatimatad Commencement Datei J u l y 11, 1989; Complete! J u l y 3 1 , 1989

S u r ' a c e L o c a t i o n i 7199 ' FNL and 69B9 F E L of E u g e n e I n l a n d B l o c k 245

Bottom H o l e L o c a t i o n i 3 2 0 5 ' FNL and 10625 ' F E L of E u g e n e I» ' Block 245

Total Depthi 8300' SS Objectives PL aanda - aee geo log ica l program Water Depths 177'

0 C 8 - 3 - 6 7 2 O , L o c a t i o n F

I s t i aa tvd Commmncmment Dat s i Aug. 1, 19B9| Compl etet Aug. 20 , I W

Surface L o c a t i o n i 900' FML and 10990' FEL of Eugene Ia land • l o c k 263

Bottom Hoi a L o c a t i o n i S t r a i g h t Hole Total Depthi •000' BS Object ive! PL sanda - see geo log ica l program Mater Depth i 173'

O C S - 8 - 6 7 2 0 , L o c a t i o n 6

Est i aat ad Commencement Datei Aug. 21, 1989| Complete! Sept. 10, 19S9

Surface L o c a t i o n ! 4990' FNL and 3879' FEL ef Eugene I s land Block 243

Bottom Hole L o c a t i o n i S t r a i g h t Hole Total Depth! 9000' 88 Object ive! PL sand* - see geo log ica l program Water Depth! 174.8'

2

0C8-Q-4720, Location H

Estimated Commmncmmoot Datai Sapt. 11, 1989i Complatat Sept. 30, 199)9

Surface Locationi 2330' FSL and 890' FNL of Eugene Island Slock 266

Bottom H o l e L o c a t i o n i S t r a i g h t H o l e T o t a l D e p t h i 9000 ' 88 O b j e c t i v e ! PL aanda - a a a g e o l o g i c a l program Water D e p t h i 180 .8

1X1. FACILITY

A. D r i l l r i g - "Ocean S e n t r y " - S e e a t t a c h m e n t f o r s p e c i f 1 f e a t i o n a , p o l l u t i o n c o n t r o l and d i v e r t m r a y a t a m .

B. No a d d i t i o n a l f a c i l i t i e a M i l l be added o f f s h o r e or o n a h o r e a a a r e s u l t of theme e x p l o r a t i o n a c t i v i t i e s ) .

IV . n>i S P H I m u T r n f l f u r v P I AM - R t f t r t o ODECO'a p l a n f i l e d M i t h HMS and u p d a t e d S e p t . 1, 1988.

ODECO O i l tt Baa Compsny f u l f i l l s i t a o i l a p i l l c o n t i n g e n c y p l a n b e i n g a meebar of C l e a n B u l * A s s o c I a t a s , P . O . BOM 31239 , NOM O r l e a n a , L o u i a i a n a 7 0 1 3 1 , an agency which h a n d l a s c l e a n up o p e r a t i o n s l n t h e e v e n t o f an o i l a p i l l . F a a t R e s p o n s e S e r v i c e can be o b t a i n e d by c a l l i n g H a l l i b u r t o n S e r v i c e s i n Morgan C i t y ( 304 ) 3 8 4 - 9 9 3 0 . Mr. C a i r o L o v i e r e i s i n c h a r g e o i a d m i n i a t e r i n g t h e equ ipment f o r C l e e n 8 u l f mmi e e l a t o m .

A. D e a c r l p t l o n of c l e a n up equ ipa tent a v a i l a b l e l n v a r i o u s l o c a t l o n e .

1. F a a t R e s p o n s e S y s t e m Model 1 c o n s i s t s o f l

a . P r i m a r y and a u x i l l i a r y a k i d Mi th 180 b b l . t ank on e a c h a k i d

b . One "Don W i l s o n " sVimmer c . Ona b a a k e t and o n e l o t of S e n n e t o i l boom meet i o n d . F i r e e x t i n g u i s h e r a k i d

2 . F a a t Response Model I I c o n s i s t s o f l

a . S e c t i o n of f l o a t i n g o i l boom b. S k i mear c . Out r1gger d . Pump a . Two a k i d mounted a t o r a g e t a n k a of 180 b b l a . e a c h

3

3 . F a s t Response Modal I I I - High volume opart aaa ski system (HOSS Barge ) .

4. Shal low water skimmer system.

3 . A u x i l i a r y shallow water skimmer and booms.

m. He l i copter apray ayatoa (HUBS U n i t s ) .

7. Waterfowl r e h a b i l i t a t i o n u n i t s .

6. B i r d s c a r e r s .

Miaeal1aneous m a t e r i a l .

10. Radio systems.

Es t imated deployment t ime - see "oi l a p i l l t r a j e c t o r y s i m u l a t i o n sect ion"

v. OIL SPILL TRAJECTORY SIMULATION Taken from F i a l Environmental Impact Statement Oulf of Mexico Salee 118 and 122, Centra l and Western Planning Areaa. The below 1 l a t e d are percent chance that an o i l a p i l l s t a r t i n g If. any a r e a a wi th in Eugene I a l a n d 245 w i l l contact c e r t a i n land segeenta w i t h i n 3 , 10, or 30 daya. Po tent ia l launch s i t e s ars i d e n t i f i e d in Figure I V - 2 of F i n a l E I S are w i t h i n the Centra l Planning Are., of C2.

A. Percent chance of a p i l l reach ing land - hypothe t i ca l a p i l . l o c a t i o n C30. Taken from I V - 7 .

Land Percent Segment

IX 12 Cameron, LA 8% 13 Ve. e i l i o n , Ln 4X 14 New I b e r i a , LA 37. 13 S t . F k r y , LA

Chance I . P . Count ies

12 Cameron, um 13 Ve. mi l i o n , LA

New I b e n * S t . Mary, _~

7X 14 Terrebonne, LA

B. P r o b a b i l i t i e s (expressed aa percent chance) that one or more a p i l l a and number of probable a p i l l a o c c u r r i n g and contac t ing Central Oulf a r c h e o l o g i c a l a i t e a w i t h i n 10 day* of a a p i l l . Taken from Table l v - 8 .

Q S C s n a r l S H S c t n s r l P A v e r a g e Q S c e n a r i o A v e r a g e ft S c e n a r i o

2% 3X O.OX O.OX IX 2X O.OX O.OX

C . P r o b a b i l i t i e s ( e x p r e s s e d a s p e r c e n t c h a n c e ) t h a t one or • o r e a p i l I s and n u e o e r o f p r o b a b l e s p i l l s o c c u r r i n g and c o n t a c t i n g C e n t r a l B u l f a r c h e o l o g i c a l s l t e a w i t h i n 10 d a y a o f e p i l l over t h e e x p e c t e d p r o d u c t i o n l i f e of t h e l e a a e . T a k e n f r o e T a b l e I V - B .

P e r c e n t C h a n c e

A r c h e o l o g i c a l H H M M S J J J U L Sjcenajr i f l B C m a T i f l K t f l a T t B B c a n a r i o

T i m b a l i e r B a y 2 3 0 . 0 0 . 0 Bar a t a r i a B e y 2 4 0 . 0 0 . 0 B e r a t e r i a Brown P e l i c a n 2 4 0 . 0 0 . 0 Ver m 11 i on / A t c ha * a 1 aya

Say 0 1 0 . 0 0 . 0 C e n t r a l S e a T u r t l e

F o r a g i n g 4 8 0 . 0 0.1 C h a n l e r P l e i n C o a a t a l

B a r r i e r 1 1 0 . 0 0 . 0 C a e i n a d a H e a d l a n d s T e r r a

C . B a r r i e r 2 3 0 . 0 0 . 0 Brand I s l e / G r a n d T e r r a

C . B a r r i e r 1 i 0 . 0 0 . 0 W. P l a q u e m i n e s C . B a r r i e r 4 7 0 . 0 0.1 1*1* D e r n i e r / T i e b . I a l .

C . B a r r i e r 2 3 0 . 0 0 . 0 West D e l t l c P l a i n Marshes B 12 0 . 1 0 . 1 C h e n i e r P l a i n Marahea 1 1 0 . 0 0 . 0 W. W i n t e r Menhaden

Spawning Ground* 1 2 0 . 0 0 . 0 C . W i n t e r Menhaden

S p a w n i n g Grounds 2 4 0 . 0 0 . 0 E . W i n t e r Menhaden

Grounds 1 2 0 . 0 0 . 0 T i m b a l i e r Bay S e e g r a e a

Bed* 2 3 0 . 0 0 . 0 Fi urchovi R e c . Beachea I 1 0 . 0 0 . 0 Brand I a l e R e c . B e a c h e a 1 1 0 . 0 0 . 0 L o u i a i a n a R e c . Beachea 2 3 0 . 0 0 . 0

D. I d a . i t i f i c a t i o n of B i o l o g i c a l l y S a n a ative Areast T h e e e a a e t f o r t h i n C l e a n O u l f A s s o c i a t e * O p e r a t : ona M a n u a l , V o l u e e I I , S e c t i o n V .

L o u i a i a n a Map » S , V - V 7 - 0 a L o u i a i a n a Map B e , V - 1 0 3 - 0 a L o u i a i a n a Map B 7 , V - 1 1 3 - O e L o u i s i a n a Map S B , P a g e V - 1 2 3 - 0 a , V - 1 2 9 - 0

5

V I . EQUIPMENT LOCATION AND *KB+ONBkl TIME

A . hPjTittnn

1. Brand I s l e , LA

a . *aet Response Modal I , I I , and I I I , (items 1, 2, and 3)

b. A l l othar item* (4 thru 10)

2 . V e n i c e , L A

a . Faat Response Modal I I and I I I (item 2 and 3) b . l t a a a 4, C and 9 C . Sorbents d. Hand skimmers a . Suct ion skimmers #. O i l storage barge

3. I n t e r c o a s t a l C i t y , LA

a . Faat Response Model I and I I (iteata 1 and 2) b . Itema 4, • and 9 c . SO bbla . atorage barge d . Sorbenta e . Sorbent recovery uni t

C o l l e c t a n t a g. Hand ak i mater h. 20 36" Sennet Tanker booms

4. Houma, LA

a . Shallow water skimmer b . Boat sprayer systems c . Inc inerator f o r sorbent dlapoaal d . Dispersant e . Dispersant dlapoaal tanka (ISO b b l a . )

5 . Caaeron , LA

a. Faat Response Model 1 and I I (itema 1 and 2) b. Dry chemicals

6

B. R w D o n t * IiffJt

1. I t takea approximately an hour to load Faat Raa» inse Modal I onto v e s s e l and approx ieate ly one and or e h a l f houra to load Model I I . I t takw* approx i mat l y 4 hours t o load Model I I I .

Veaae la are to be provided by ODECO. Work boata under c o n t r a c t to work i n Ship Shoal Block 114 M i l l be ueed. I n event of a s p i l l , the f a s t response uni t would be t ransported by t r u c k from Brand I s l e or I n t e r c o a s t a l C i t y to our Marine dock at Cocodrie . Thia would te'<<e aoprox ieate ly 4 hours to accompliah. (Locate t r u c k , l oad and t r a n s p o r t ) . Vesael t r a v e l time from Ship Shoal to Cocodrie i a o houra. The truck move and r o u t i n g of veaael would be done s imultaneously. T r a v e l time f r o e Cocodrie to Eugene Ia land Block 245 i s 4 houra under normal condi t iona .

I a eqiupeent are to be u t i l i s e d f r o e Venice and/or Cameron, (Model I I and I I I > veaaela Mould be leaaed ir. those areaa . I t t a k e s approximately one hour to l o c a t e and l e a a e the veaae la , and one and one he l f houra to load Model I I , and 6 houra to laod Model I I I . I t takea 20 houra t r a v e l time from e i t h e r Venice and 17 houra f r o e Cameron to Eugene l e land Block 245.

a . Bceneiro I - Faat Response Model I f roe I n t e r c o s t a l C i t y af sfrssjSBBmEsjBm v i a Cocodrie dock*

Travel from SS 114 to Cocodrie 3 h r a . Stand by for E q . to a r r i v e 1 h r . Loading time 1 h r . Travel to Eugene I a l . B l k . 245 ft. h r s .

Total Response Time 11 h r s .

b . Scenario I I - F a a t Response I I (e i ther from Venice or Cameron)i

yjsnitF Cameron

Locate and C o n t r a c t Veaael 1 hr Loading time 1.5 h r s Travel to Eugene I e . B l k . 245 20 hrs. 12 bxa

1 hr 1.5 h r *

Total Response Time 22.7. hra 19.5 h r a

7

C. Scenario I I I - Fast Reapon.* Modal XXX (either from Venice or Cameron)t

v tn ls t

L o c a t e end C o n t r a c t V e s s e l 1 h r 1 h r L o a d i n g T i e e 4 h r e 4 h r a T r a v e l to Eugene I a . B l k . 24S 29. hra 12 hrs

T o t a l R e s p o n s e T i e e 27 h r a 24 h r a

v i i . T>iaa*M*at Q£ POLLUTANTS

The f o u r w e l l . M i l l oe d r i 1 1 l a d u a i n g a Mater b a a e d n o n - d i e p e r a e d u n w e i g h t e d mud s y s t e m t o a p p r o x i m a t e l y 6500 , and a Mater baaed diaperaed low-weight mud to t o t a l depth.

D r i l l e d c u t t i n g a w i t h a a m a l l amount of d r i l l i n g f l u i d a o h e r e i n g t o t h e s h a l e and s a n d p a r t i c l e s M i l l be d i s c h a r g e d a t t h a w e l l a i t e a d u r i n g d r i l l i n g o p e r a t i o n a . The maximum d i a h c a r g e r a t e w i l l be w h i l e d r i l l i n g f r o e t h e mud l i n e to exceed 400 b b l a / d a y f o r one d a y . D i s c h a r g e r e t e a of c u t t i n g s to t h e r e m a i n d e r s h o u l d a v e r a g e l e a a t h e n 100 bb l a / d a y . T o t a l d i s c h a r g e of c u t t i n g a f o r e a c h w e l l i a e s t i m a t e d t o be 1B00 b b l s . No o i l w i l l be added t o t h e mud or d i s c h a r g e d a t any t i m a . I n t h e e v e n t i t becomes n e c e s s a r y t o add o i l t o t h e d r i l l i n g mud or " s p o t ' an o i 1 b a a e l u b r i c a n t a round a stuck, d r i l l s t r i n g , a l l mud and c u t t i n g a w i l l be t r a n s p o r t e d t e s h o r e f o r p r o p e r d l a p o a a l . A l l mud d i a h c a r g e d w i l l be t r e a t e d f o r t o x i c i t y a a r a q u i r a d by E P A ' a NPDES d i s c h a r g e p e r m i t . T o t a l d i s c h a r g e of d r i l l i n g f l u i d a f o r a l l w e l l s i a e s t : mated to be 1 9 , 2 0 0 b b l a .

S a n i t a r y w a a t e i s t r e a t e d by a w a a t e t r e e t a e n t f a c i l i t y and d i s c h a r g e d o v e r b o a r d i n c o m p l i a n c e w i t h t h e E P A ' a NPDES d i s c h a r g e p e r m i t . T r e a t e d w a a t e d i s c h a r g e d n o r m a l 1 y a v e r a g e s 25 g a l l o n s p e r dey p e r man on t h e r i g . A r i g w i l l d i s c h a r g e 750 to IOOO g a l l o n e p e r day d e p e n d i n g on t h e number o f p e r s o n n e l on t h e r i g .

A l l m e t a l , a t e e l , c a b l e a , e t c . a r e s t o r e d on t h e r i g u n t i l s u f f i c i e n t q u a n l t y a c c u m u l a t e s . T h i a m a t e r i a l i a t h e n t r a n s p o r t e d t o our s h o e b a a e f o r r e c y c l i n g . P a p e r , b a g a , p i a a t i c e , e t c . a r e compacted i n a c o n t a i n e r by en onooard compactor t h e n t r a n s p o r t e d t o s h o r e fo r d i s p o s a l .

A l l v e s e e l s u e e d i n our o p e r a t i o n a a r e e q u i p p e d w i t h Mar ine S a n i t a t i o n D e v i c e a or h o l d i n g t a n k s i n c o m p l i a n c e w i t h DOT r e g u l a t i o n e .

s

V I I I . HYDROGEN BUi_FID€ LJNTINQCNCY PLAN

These w e l l s M i l l be d r i l l e d i n a r e a s Mhach a r e known t o be f r e e o i h y d r o g e n au i f i d e . I n t h e u n l i k e l y e v e n t h y d r o g e n a u l f i d e w o u l d be e n c o u n t e r e d * a l l o p e r a t i o n a Mould c e a s e u n t i l the r i g c o u l d be equ ipped and t h e p e r a o n n e l t r a i n e d f o r o p e r a t i o n a i n a hydrogen a u l f i d e e n v i r o n m e n t . B e e l e t t e r s r e g a r d i n g a n t i c i p a t e d a b a e n c e of H»8 d a t e d J u n e * , 1 9 B * f o r each of t h e s e w e l l s .

IX. TRANSPORTATION ROUTES (WATER, QbD. &1EL

Tha most d i r e c t r o u t e s from t h e E u g e n e l e l a n d B l o c k 265 a r e a to s h o r e b a s e f o r a u p p l i e a and p e r s o n n e l M i l l be u s e d . S e e v i c i n i t y map d e p l i c i t i n g t r a n s p o r t a t i o n r o u t e , A t t a c h m e n t B.

X. BASE Qf.

A. M a r i n e s e r v i c e to d r i l l t h i a w e l l M i l l be p r o v i d e d from D u l a c a n d C o c o d r i e , L A .

B. A i r s e r v i c e ( h e l i c o p t e r ) M i l l be p r o v i d e d f r o e Houma, LA.

X I . EUEL CONSUMPTION - DRJLLJiffi OPERAT 1 ONS

D r i l l b a r g e u e e a an a v e r a g e of SO b b l a . of d i e a e l f u e l per da> d u r i n g d r i l l i n g o p e r a t i o n a . E a c h s u p p l y b o a t u e e a a p p r o x i m a t e l y 2 5 b b l s . (42 g a l . / b b l . > of d i e a e l p e r d a y . Two boate s e r v i c e d r i l l i n g r i g d a i l y .

Approx. R i g Daya Bbl a . / D a y Consumpt ion

80 * 30.

80 s. 32

Tota l F u e l Consumpt ion 4000 Bbla 40O0 Bbla

X I I . SAFETY STANDARDS Aj& PRQSftftflS Z T R I L L I N S OPERAT 1 PASS

ODE CP b a l l e v e e t h e a a f e t y of i t a employees i a d i r e c t l y p r o p o r t i o n a l t o e a c h e m p l o y e e ' a s k i l l and knowledge of t h e work t o b e p e r f o r m e d . To i e p r o v e t h e e e s k i l l s and i n c r e a s e t h i s k n o w l e d g e , a "R ig Crew T r a i n i n g Program" h a a been i n a t i t u t e d . T h i a p r o g r a e p r o v i d e a t h e n e c e s s a r y o n - t h e - j o b t r a i n i n g t o e n a b l e each e m p l o y e e t o make a p l a n n e d pr o g r e s s i or. f r o e r o u s t a b o u t t o d r i l l e r . I t c o n s i s t s of o n - s i t e v i d e o c a s s e t t e p r o g r a e a , I n t e r n a t i o n a l A s s o c i a t i o n D r i l l i n g C o n t r a c t o r s a p p r o v e d "Home Btudy C o u r s e s " . M i n e r e i s

9

Management S e c t i o n r e q u i r e d C r a n e O p e r a t i n g Blow Out P r e v e n t i o n T r a i n i n g and U n i t e d t t e t e a C o a e t G u a r d ' a S e a m e n ' s T r a i n i n g . A l l employees muat p a a a r e q u i r e d t e s t i n g i n e a c h o-f theee c o u r s e s . A pay i n c e n t i v e i s i n c l u d e d t o e n c o u r a g e employee p a r t i c i p a t i o n . I n a d d i t i o n , t h i s program i a s u p p o r t e d by g e n e r a l l y a c c e p t e d methods of r i g i n s p e c t i o n s , d r i l l s a n d e a f e t y meet ings w h i c h a r e i n c o m p l i a n c e w i t h U8CG and MMS s t a n d a r d s w h i c h , we b e l i e v e w i l l u l t i m a t e l y e n h a n c e tha work p e r f o r m a n c e of our e m p l o y e e s .

X I I I . fj£M OB UNUSUAL TECHNOLOGY

No new o r u n u s u a l t e c h n o l o g y w i l l be t h e s e w e l I s .

employed w h i l e d r i l l i n g

X I V . TYPE M U L L Njjfc USED AND CHEMICAL COMPONENTS

A. B a r i o d

B. C h e m i c a l Components

Akt a f l o - S

A l u m i n u m S t e a r a t e

A q u a g e l

B a r o i d

B i c a r b o n a t e of Soda

CarbonoM

C a u s t i c Soda

C C - l e

C e l 1 OM

D e e t r i d

ImpersMtM

L i m e

Mi c a t e x

Ml Med OMyenthy1 a t e d p h e n o l s

(Chm(CHm> t*COO>aAL

Sodium m o n t m o r i 1 I o n i t e

B a r i u e S u l f a t e

Na NCO.

L i g n i t i c Humic A c i d Powder

Sodium H y d r o s i d e

C a u s t i t e d CerbonoM

Sodium C a r b o x y m e t h y l e c e l l u l o s e

D e x t n n i z e d P o l y s e c c h e r i d e Powder

S e l e c t i v e , n o n i o n i c

s u r f a c t a n t - C h e m c o p r o d u c t

S t a r c h

C a l c i u m H y d r o x i d e

M i c a F l a k e s

10

O - B r o x i n F a r r o c h r o m t L i g n o s u l f o n a t e

S o d l u a A c i d P y r o p h o s p h a t e

Sodium Chromate

H y d r o c a r b o n PoMdor

O i l a o n t a

B i o d e g r e d e b l e , N o n - T o x i c l u b r i c a n t

Nut N u l l a

Bapp

Sodium Ash

S o l t a x

S u p e r d r i l l

T o r q - T r l e

Wall-Nut

XV. SHALLOW HAZARDS SURVEY

An a r c h e o l o g i c a l and h a z a r d * s t u d y was c o n d u c t e d by J o n e E . Chance tt A e a o c i a t e e i n J u l y , 1*8*/. None of t h e e e a i e l l e a r a l o c a t e d i n o r a r c h e o l o g i c a l l y a e n a i t i v e or h a s a r d e o u a a r e a a . ; i e l l S A - 4 i a b e i n g d r i l l e d a d j a c e n t t o two p r e v i o u a l y d r i l l e d M S I I S *

XVI. QfiSEQys EHISSIQN BflM

A. E m i s s i o n s

1. R i g i "Oeaan S e n t r y " M i l l ba u a e d . E s t i m a t e d r i g d a y * f o r d r i l l i n g t h e a e Ma l l a M i l l be BO d a y a . E m i s s i o n s c a l c u l a t e d f o r 80 d a y a a t a t e d i n ( l b a . / d a y ) t o n a / B O d a y a . S e e a t t a c h m e n t s f o r

e e l melon summary by r i g and b a a i s o f c e l c u l a t ior , Of summary.

b. c. d.

CO Hydrocarbon NO. 8 0 . P a r t i c u l a a

(750.1?) (141.93)

(47*7.73) (3B7.42) (92.06)

3 0 . 0 1 4 . 4 4

190 .71 1 3 . 9 0

2 . 0 G

2 . H a l i c o p t e r a i B m t i e a t e 12 round t r i p s i n BO d a y s , 1 hour p e r round t r i p • 12 h o u r s o p e r a t i n c t i m e . S t a t e d i n ( l b s . / h r . ) t o n s p e r 80 d a y a . S e e a t t a c h e d f o r e m i s s i o n s p e r hour o f u s e .

e . CO ( . 9 0 ) . 0 0 8 . Hydrocarbon ( . 1 0 ) . 0 0 c . NO. ( 2 . 2 0 ) .01 8 . 3 D , ( 1 4 . 2 0 ) . 0 9 e . P a r t i c u l e s ( . 2 0 ) . 0 0

11

3 . B o a t (Crow) i F i f t y - r u n * <39> t r i p s i n BC d a y s s t 4 h o u r s y a r r o u n d t r i p • 234 h o u r s . ( S u p p l y ) T h i r t y - n i n e (39) t r i p s i n 80

daya a t 8 h o u r a round t r i p • 312 h o u r a . 234 • 3 1 2 * 348 o p e r a t i n g h o u r s . S t a t e d i n ( l b a . / h r . ) t o n e per 80 d a y a . S e e a t t t a c h e d f o r e m i s s i o n p e r hour of u a e .

a . CO ( 4 . 8 0 ) 1 .84 b . Hydrocarbon ( 2 . 3 0 ) . 4 9 C . NO, ( 3 1 . 4 0 ) 8 . 4 0 d. 8 0 . (2.10) .57 e . P a r t i c u l e s ( 2 . 3 0 ) . a 3

4 . S u p p l y Baae i 30 t o n c r a ^ e . E a t i m a t e d i n 80 d a y a , 320 h o u r s . S t a t e d i n ( l b s . / h r . ) t o n s per 80 d a y s . S e e a t t a c h e d f o r e m i s s i o n per hour.

• • CO ( 3 . 7 7 ) . 4 0 b . Hydrocarbon ( . 3 5 ) . 0 4 c . NO, ( 9 . 1 8 ) 1 . 4 7 d . 8 0 . ( . 47 ) . 0 8 e . P a r t i c u l e s ( . 5 0 ) . 0 8

B. E x e m p t i o n s ! D i s t a n c e f r o e s h o r e 40 s t a t u e a l l e e .

1. H y d r o c a r b o n s , N O . , 8 0 2 , F a r t i c u l e s 3 3 . 3 x 40 • 1 9 9 8 . 0 t o n e / 3 4 5 daya f o r e a c h , or 1 9 9 8 . 0 N 4 - 7 9 9 2 . 0 t o n s / 3 4 5 d a y a .

2 . CO ( 3 4 0 0 x 40) 2 / 3 or 3194 t o n s / 3 6 3 d a y a .

x v i i . ATTftCMMSNTS

A. V i n c i t y Map Mlht w e l l l o c a t i o n s p l o t t e d .

B. V i c i n i t y Map e i t h t r a n s p o r t a t i o n r o u t e p l o t t e d .

C. G e o l o g i c a l Program m i t h s t r u c t u r e map, B a t h e y e e t r y e a p , HaS l e t t e r and S h a l l o w D r i l l i n g H a s a r d s s t a t e m e n t w i t h s e i s e i c map f o r l o c a t i o n s A - 4 , F , 8 , It H.

D. D r i l l N i g Datal - "Ocean S e n t r y " i n c l u d i n g s c h e m a t i c o f d i v e r t e r and s t a t a e e n t of p o l l u t i o n c o n t r o l .

E . E m i s s i o n Summary w i t h b a s i s of c a l c u l a t i o n s f o r d r i l l r i g .

F . E m i s s i o n S t a c k a l e / a t i o n s .

S . E m i s s i o n h o u r l y r a t e f o r b o a t s , h e l i c o p t e r , and c r a n e .

12

t M

248 U i _

pfnrar ; P

OM • 0«t

•uc tie O.C.S.-9-9790

s t.

Y • • 70,071.M'

270

264

VICINITY PLAT

1C*U

PROPOSEO MINERAL DEVELOPMENT

EUGENE ISLANO AREA O U L F OF M E X I C O

OOCCO OIL 6 OAS COMPANY

DIVERTER SYSTEM

0 D I C 0

WIER-OFFICE CCRRESKMENCZ

TOt I . S . Cloger LOC.: •• 0. DAU:

COPIES TOt

FROM: W.J. Wilkinson LOC., S.O.

SuUECT: Pollution and Watte Disposal froa S/l

Tha D/S Z r 7 t o « / t o d j C i f . *ss constructs* with certain features which were Incorporated specifically to stop any pollutant likely to ba found during oonwX drllllsg operations. It is equipped with drip pant sad/or drslns unitr floor sad at bar machinery ta rataia a l l a l l spills.

Provisions hava Was aad* far tha col lse tlaa, storage, sad Is tor trsaafar ta shora bass af all seed a l l froa aachlnary oa tha drilling platfora.

Container* cava seas provided ta craaafar eel 14 eeata (such as boxes, cartons, cans, e tc . ) which cannot be lncinereted, ta a snore base.

Copies ef OCS Ordar Sta. 1 through 10, whieh ara applicable to tha coetract dri 11 leg operations, havs been furnished the toolpushers. I i | supervisory pars aeon 1 have seas shown tha seriousness af control af pollutants.

ild l t ceaa ts your attention that aay liquids ar solids hava escaped lata the Self without ear knowledge, I s lacs rsi y ash that yea bring thla ta cy attendee.

V. J . Wilkinson

WJW/ggt

X Jlooo •

00 1 on si ions t nm t tit

• M i PAJtTICALt

ft} tot

4 t . i t t.rt t t t . t t . t t M.t • 75 t t t . t t . t t M. t

mr ti f.9S mtf.d 9J.*

•.•> *m • #%» m umr t . M t . t l t.tl no t . M 0 Of t . *x # . # 7 t . « f t.«vT

• a t.«w t . # x t . / f t

t . M t . M 1.44 t . M t . t t t . M t . M 1.44 t . M t . t t t . M t . t t t . t l t . t t t . t t

t . M t . t l t . t t w t . M

$}*>.#

7f4>.^ I U . C * JTj . 0 #r i r 7 4 j L

P o l l u t a n t from d i e s e l engines on d r i l l i n g r i g s were ca lculated using the folio- ing:

2 9 9 I - - .0096569 X c X P X (BHP)

where

- .0096563 • conversion fron Grams/hr. to Tons /yr . - C - Grams/BHP-Hr o f pol lutant - see (1) - P - Average > useage in • y r . - see (2) > - B H P - Rated HP of engine

(1) Avai lable date from Manufacturers o f d i e s e l engines and theore t i ca l combustion data was surveyed, and the following values chosen:

(2) Operation o f equipment data from s e v e r s l r igs , wss reviewed to obtain % useege. Based on t h i s review, the following data was u t i l i s e d in preparing emissions est imates . This data i s probably conservat ive , because i t was assumed that en?ines were operating at a l l times a t re ted horsepower:

Po l lu tant Grams/BHP-HR

Hydrrcarbon CO

P a r t i c u l a t e

18..1 1.49 0.62 l a a t 0.20

Engine Application Average Y e a r l y % Use

Main Engine p , nerg . Engine

i m a r y Crane Back Up Crane Pork L i f t Cement Unit Logging Unit Welding Unit Oessnder/Des l i t e r Cold S tar t A i r Comp. Rig A i r Comp. Main Hud Pump Mud Mix Unit Draw works Bulk A i r Comp.

7 3 3 3 1 2

10 2

10 50 10 60

3

74 .0 .5

Bests Por Calculations of Cataoua eal talons of Beats - Helicopters sets Crane Bt Supply Base for Rig Rtlated Operations

X. Boats: Equiped with Cue ¥ 12 marine aevglnes and ttst generators X£s/Hour

00 lydrocarboo Ho. S0 2 Parti col ss 4.S 2.3 31.1 lAT 2.) X I . Helicopter: Per transportation ef men. fllse 206

Lha/Hour CO Hydrocarbon He* BO* Partlculee .3 .1 27P liTt .2

XXX. Supply Bees - Crane - vith OM 6-71 diesel engine with 221 BMP driving a 30 ten creee

Lbs/Hour » Hydrocarbon Re* BO* Partlculee

3.77 .33 9.11 .47 .5