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TRANSCRIPT
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la aooordacoo vita 30 CTl 250*33, tale plan la haraby deened eoaeUttae nad la now being eonsldered for approval.
Tear plaa ati h r aaalail le fi Tflin eal abould bo referenced la your eatlea ead oorreapooiaiii ona nam let tale plan.
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boot Uaaa OCS-G 6606 (0T»~B-4) (Fira BOOH) OCM 6611 ( I f k V H ) (fXLI BOCM) OCM 6612 (OM-3-t) (FILE BOOH)
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Unocal Oil A O M Dtvtolon Unocal Cofporation 1016 Harding Stroot P.O. Box 51368, O.CS Lafayotto Louiaiana 70506-1386 Taiapnona (316) 232-9724
UNOCAL® C5
X . . , June 10, 1988
U. S. Deportment of the Interior Minerals Management Service 1201 Elmwood Perk Boulevard New Orleans, Louisiena 70123
RE: Plan of Exploration Leases OCS-G 6609, OCS-G 6611 and OCS-G 6612 West Cameron Blocks 658, 660, and 661 Offshore, Louisiana
Gentlemen:
Enclosed for your approval is Union Exploration Partners, LTD.'s Plan of Exploration for eight (8) walls in West Cameron Block 658, 660, and 661, Offshore, Louisiana. As directed, five (5) of the nine (9) copies attached include proprietary information.
Yours very truly,
UNION EXPLORATION PARTNERS, LTD., BY: Union Oil Company of California,
Managing Generel Partner
Ted Russell District Drilling Superintendent
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Enclosures
cct U. S. Department of the Interior Minerals Management Service 620 Esplanade St., Suite 104 Uke Charles, Loulslene 70605
BEST AVAILABLE COPY
UNION EXPLORATION PARTNERS, LID. PLAN OF EXPLORATION
OCS-G 6609, 6611, AID 6612 WEST CAMERON BLOCK 658. 660. AND 661
GENERAL
In accordance vith tha Oil and Gaa Operating Ragulationa 30 CFR 250.3A amended Septeaber 14, 1979, and with the Outer Continental Shelf Und Acts Aaendaants of 1978. Public Uw 95-372, Union Exploretion Pertners, Ltd. respectfully sub-aits the following initial Plen of Exploretion for approval.
SECTION 250.34-1 (a)(l)(i)
Drilling operetions in West Cameron Blocks 658, 660, 661, Uases OCS-G 6609, 6611, and 6612, could begin on or about October 1, 1988. This start-up date will be dependent on the hydrocarbon market and rig availability. If the wells are drilled as planned and the drilling program is continuous, the project should take 315 days to complete. A breakdown of the estimated time to drill eech veil is as follows:
WC 658 OCS-G 6609, Well No. A 30 Days OCS-G 6609, Well No. B 30 Days
wc 660 OCS-G 6611, Well No. A 45 Days OCS-G 6611, Well No. B 25 Days OCS-G 6611, Well No. C AO Days
wc 661 OCS-G 6612, Well No. A 50 Daya OCS-G 6612, Well No. B 45 Days OCS-G 6612, Well No. C 50 Deys
Total 1 (All Wells) 315 Dsys
SECTION 250.34-1 (e)(1)(H)
The wells will be drilled with a seal-submersible rig, Zappata Offshore Company - Saratoga, or a comparable rig (see Attachment I ) . TMs rig is s diesel-electric drilling unit which is equipped with pans/sumps to collect pollutants. Tho pollutants will be contained and properly disposed of. The drilling operations will be serviced from Union's Shore Bese located at Intracoastal City, Louisiana. This facility, coaprised of approximately 22 acres, is located edjacent to the Vermilion River 1/2 mile north of the intersection of the Intracoastal Canal and the Verallion River. The facility consists of en office coaplex, pipe yard, fuel end storage tanks, loading and unloading dock, and general storage area for production and drilling equipment and supplies. Union Explorations Partners, Ltd. maintains a support transportation pool consisting of five (5) helicopters and seven (7) offshore boats. Baaa personnel ere on 24-hour duty and ere ln communication (telephone/radio) with e l l offshore Banned platforms end drilling xigs. Attachment I I shows West Caaeron Blocks 658, 660, and 661, relative to the shoreline of Louisiana.
BEST AVAII ABU
PLAN OP EXPLORATION OCS-G 6609. 6611 AND 6612 WEST CAMERON BLOCKS 658.660, AND 661 PAGE 2
SECTION 250.34-1 (a)(1)(H) CONTINUED)
Union Exploration Partners, Ltd. hss filed sn Oil Sp i l l Contingency Plan vith the United States Department of the Interior, Minerels Management Service in accordance vith OCS Order No. 7. This plen contains the names and telephone number of corapany personnel vho v i l l form en emergency response team in the event of an o i l s p i l l . This plsn contains procedures for reporting a s p i l l and for responding to s reported s p i l l .
Union Exploration Partners, Ltd. is a member of Clean Gulf Associates. This association provides for the purchase and maintenance of equipment and materials for use by its members in cleaning up of an o i l s p i l l . Equipment is presently located at Galveston and Freeport, Texas; Cameron, Intracoastal City, and Grand Isle, and Venice, Louisiana. Some of the equipment available includes a shallov water skimmer system vith s AO-barrel storage capacity, a fast response open sea and bay system vith tvo (2) 180-barrel tanks used in skimming and storing, and a high volume open sea skimmer vith 1,000-barrel storage capacity. The amount of time required to get to the s p i l l area v i l l vary on location of work boats for immediate charter. The time may vary anywhere from a minimum of five (5) hours to a maximum of 24 hours.
SECTIONS 250.3A-1 ( a ) ( i l l ) and 250.34-1 (a)(v)
Exploratory Drilling Plans for each location and Shallov Hazards Reports covering a l l locations (see Attachment I I I ) exe enclosed. This attachment includes an Archeological Statement, a Shallov Drilling Hazards Statement, and a Structure Map indicating the v e i l locetions. Tvo (2) copies of the Shallov Hazards Survey covering the subject blocks vere mailed December 9, 1985 to the Minerals Management Service in Metairie, Louisiana along vith one (1) copy going to the Minerals Management Service District office in Lake Charles, Lo.iisiana. Copies of the high resolution survey data from the lines closest to the proposed veil locations are attached to the copy of this Plan of Exploration for the Minerals Management Service in Lake Charles, Louisiana.
SECTION 250.34-1 (a)(lv)
The folloving table gives the surface and botton hole locetion, the true verticel depth, and the measured depth for eoch veil:
Lease snd Well Surface Location/Bottom Hole Locetion
OOG 6609 Well No. A 4,100' FNL end 700' FWL of W. C. Blk. 658
OCS-G 6609 Well No. B 3,AOO• FSL and 700' FWL of W. C. Blk. 658
OCS-G 6611 Woll No. A 2,350' FSL and 1,050' FWL of W. C. Blk. 660
JEST AVAILABLE COPY B E S T AVAIIABLL
PLAN OF EXPLORATION OCS-G 6609, 6611 AND 6612 WEST CANERON BLOCKS 658,660, AND 661 PAGE 3
OCS-G 6611 Well No. B
OCS-G 6611 Well No. C
700* PSL end 3,800' FWL of W. C. Blk. 660 1,000' FNL end 6,900' FEL of W. C. Blk. 660
OCS-G 6612 Well No. C
OCS-G 6612 Well No. A
OCS-G 6612 Well No. B
3,550' FSL end W. C. Blk. 661 5,925' FSL end W. C. Blk. 661 4,975' FIL and W. C. Blk. 661
2,725'
3,650
3,600'
FEL of
FEL of
FEL of
Attachments IV, V, and VI are plats which show the proposed surface and bottom hole location for each well detailed in this initial Plan of Exploration.
The water depths at the proposed well locations range from 405' to 515'.
SECTION 250.34-1 (a)(vi) AND SECTION 250.34-1 (&)(2)(l)
An Environmental Report (see Attachment VII) including an Air Quality Review and Coastal Zone Management Consistency Certification is submitted in accordance with the guidelines establirhed for preparing Outer Continental Shelf Environmental Reports and pursuant to the provision of 30 CVR Section
Attachment VIII is a detailed l i s t of mud components and additives, including the common trede name of each.
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Attachments
250.34-3.
BEST AVAILABLE COPY
Zapata Off-Shore Company
ZAPATA SARATOGA
ATTACHMENT I
Sernisubrnersiblo
ZAPATA SARATOGA Nominal water depth rating 2,000'
Drilling Eojulpment
Registered
Overall Length Overall Width Depth Operating Draft Natural
Heave Period Natural
Pitch Period Natural
Roll Period Cranes
Anchoring System
Towing Speed in Calm Sea
Drilling Water Potable Water Fuel Oil Liquid Mud Total Bulk Mud
and Cement Sack Storage Sewage Treating
System Desalinization
umt
Survival
Semisubmersible with six stabilizing columns U S A. Built 1976 st Avondale Shipyard. New Orleans. Louisiana 260' 200' 80' 43'
21 sec.
30 sec.
34 soc One Manitowoc Model 135. 120' boom. 55 ton capacity at 30' radius One Manitowoc Model 135. 80' boom. 56 ton capacity at 30' radius One Manitowoc Model 70. 110' boom. 28 ton capacity at 30' radius
Eight Vicinsy Offdrill 40.000 lb. anchors with eight 2.500' lengths of 2 * " steel stud length chain and eight 4.500' lengths of 2 V wire rope Four Skagit double drum wildcat windlasses rated at 440.000 Ib. tension with release up to 900.000 Ib. tension
6 knots with 10,000 bhp sea tug
8.800 bbls. 1.225 bbls. 6.800 bbls 1.700 bbls.
10.200 cu.«. 6.000 sacks
Rod Fox. 5.000 GPO
Aqua Chem S300. 300 gph capacity (1) ono standby unit. Designed to accon^nodete S-61 helicopter Ouarters for 82 persons
Two Brucker survival capsules, self-righting life boat
Drawworks
Main Power Plant
»umps
Rotary Riser Pipo
Equipment
Rated to 25.000' Oilwell Model E-3000 dnven by two EMD D79MB dc electric motors rated at 800 hp each
Three EMD-16-645-E8 diesel engines rated at 1.950 bhp at 900 rpm. with three EMD Model A-20-N6 ac generators. ABS rated and certified for 1.400 kw Ross Hill SCR system Two Oilwell A1700-PT triplex pumps, each driven by two EMD D79MD eiectnc motors Oilwell 49ft"
2.000 of 21" OD x 20" ID. 40' stroke slip ioint: nser tensioning system by Rucker
BOP Equipment Cameron 18 V single stack system with two 10,000 psi wp Cameron type U double ram preventers, and two Rucker-Shaffer 21 % " spherical preventers
Substructure Derrick Inc. welded rigid frame to support 160/ derrick
Derrick 160' x 40/ x 40* designed to accommodate a motion compensator and automated pipe racking s/stem
Pipo Racking System
Drill String Compensator System
Mud Mixing Pumps
Cementing Unit Drill Collars and
Dril Pipe
BJ three-arm elect!o-hydraulic vertical racking system
Rucker-Shaffer 18' stroke
Fi%o 6" x 8" centrifugals Halliburton 9WOO x 3"ID x 3V collars; 8 "00 x 2 % ID x 3V collars; 6V*""00 x 2%"ID x 3V collars; 5 "00. 19.50 lb.. Grade E. Renge 2; 5 •OD. 19.50 *>.. Grade G. Ranged
ZAPATA SARATOGA
a m\
•
s
.A 1
TOO' /
658
TOO' B
8 J
W. C . B L K . 6 5 8 OFFSHORE , LOUISIANA
ATTACHMENT IV
O' 2000' 4000' 6000'
MOO' _ 8
li
660
W. C . B L K . 6 6 0 OFFSHORE , LOUISIANA
ATTACHMENT V
O' 2000' 4000' OOOO'
661
t r t r
W. C . BLK. 661 OFFSHORE 9 LOUISIANA
ATTACHMENT VI
O' 2000' 4000' 6000'
r ~ \ ENVIRONMENTAL REPORT
FOR COASTAL MANAGEMENT CONSISTENCY DETERMINATION
PLAN OF EXPLORATION
ANO
AIR QUALITY REVIEV
GULF OF MEXICO
FOR
WEST CAMERON AREA BLOCKS 658 (6-6609), 660 (G 5611) A 661 (G-6612)
SUBMITTED TO:
NR. TED RUSSEL
DISTRICT DRILLING SUPERINTENDENT
UNION EXPLORATION PARTNERS, LTD.
P. 0. BOX 51388
LAFAYETTE, LOUISIANA 70505
(318/232-9724)
JUNE 7, 1988
PREPARED BY:
JOHN E. CHANCE A ASSOCIATES, INC.
REGULATORY A ENVIRONMENTAL DIVISION
PROJECT NO. 88-8089
ATTACHMENT Vll
Table of Contents
ENVIRONMENTAL REPORT
Page
I. Title Page 1
Table of Contents 11
List of Figures Iv
II. Description of the Proposed Action 1
A. Travel Nodes, Routes, and Frequencies 3
B. Support Base and New Personnel 3
C. New Support Facilities 4
D. New or Unusual Technology 4
E. Location of the Proposed Activities 5
III. Description of the Affected Environment and Impacts .... 6
A. Physical and Environmental .. 6
1. Commercial Fishing 6
2. Shipping 11
3. Recreation 12
4. Cultural Resources 13
5. Ecologically Sensitive Features 13
6. Existing Pipelines and Cables 14
7. Other Mineral Uses 14
8. Ocean Dumping 14
11
( " ^
9. Endangered or Threatened Species 15
B. Socio-Economic Impacts 16
IV. Unavoidable Adverse Impacts 17
V. Literature Cited 21
Coastal Zone Management Consistency Certificate 23
AIR QUALITY REVIEW
1. Title Page 25
I. General Information 26
II. Total Emissions for Drilling 26
I I I . Project Suamary, Total Emissions 27
IV. Findings of A1r Quality Review 28
V. Methodology 28
VI. References 28
111
LIST Of FIGURES
FIGURE Page
1---V1c1n1ty Nap of Most Cameron Arta Blocks 658, 660, 661.. 2
II. Otscrlptlon of tht Propostd Action
This roport addresses tht activity propostd by Union Exploration
Partntrs, Ltd., for West Cameron Arta Blocks 6S8 (OCS-G-6609), 660
(OGS-G-6611), and 661 (UCS-G-6612). Tht approximate location of tht
activity Is prtstnted in Figure 1, a general vicinity nap of the Outer
Continental Shelf (OCS) lease areas off the coast of Louisiana.
It Is anticipated that a semi-submersible type rig Mill be moved on
location and eight wells will be drilled. The activities proposed by Union
Exploration Partners, Ltd., for these blocks are Included in the attached
Plan of Exploration.
The proposed activities will be carried out by Union Exploration
Partners, Ltd., with a guarantee of the following:
1. The best available and safest technologies will be utilized
throughout the project. This Includes meeting all applicable
requirements for equipment types, general project layout,
safety systems, equipment and monitoring systems.
2. All operations will be covered by N.N.S. approved Oil Spill
Contingency Plan.
3. All applicable Federal, State, and local requirements
regarding air emissions, water quality, and discharge for
1
%John Em ChmWWB ox Mssoomp §nOm
MISSISSIPPI
TEXAS
ro
SAST • • £ * « •
BAB.
M I N I M i l l MBA M U M CAM VOI AMA
•OUTM
JOHN E. CHANCE 0 ASSOC.. INC
UNION EXPL. PARTNERS LTO
VICINITY MAP BLKS S S t . S 6 0 . A S I
WEST CAMERON AREA
40 r-H I
tht propostd activities, as wtll as any othor permit conditions,
will be compiled with.
A. Travel Nodes, Routes, and Frequencies
Union Exploration Partners, Ltd., will operate out of their service
base facilities established In Intracoastal City, Louisiana. Jnlon
Exploration Partners, Ltd., anticipates using one helicopter, one supply
boat, and one crew boat to support their West Cameron Area Blocks 658, 660,
and 661 activities.
The helicopter and the crew boat will both travtl to tht location a
total of seven tints per per week and the supply boat will travel to the
location a total of two times per week. It Is anticipated that the
transportation vessels will utilize the most direct route from the
Intracoastal City, Louisiana service base. Because a vessel supporting
these exploration activities, as outlined In the Plan of Exploration, may be
scheduled for other stops in the area, the exact route for each vessel on
each particular trip cannot bt predetermined.
B. Support Base and New Personnel
Union Exploration Partntrs, Ltd., will utilize support bast facilities
established In Intracoastal City, Louisiana. Tht Intracoastal City,
3
John E. Chmnom A Ammmm* Inc.
Louisiana support bast 1s locattd approximately ont hundred forty-five
miles, ont hundred forty-nine miles, and ont hundred fifty-one Miles,
respectively, from West Caaeron Area Blocks 658, 660, and 661.
Because helicopter and Marine faci l i t ies are currently available at the
service base and are presently and continuously Manned, no additional
onshore enp1oyMtnt Is expected to be generated as a result of these
activities.
The Initial OCS Socio-Economic Oata Base Report for the service base
facilities utilized by Union Exploration Partners, Ltd., will be prepared
for submission pursuant to the specific parameters to be established by the
DOI/MMS and scheduled to be Issued at a later date.
C. New Support Facilities
The proposed exploration activities for West Cameron Area Blocks 658,
660, and 661 will not require the development of any new support facil i t ies.
0. New or Unusual Technology
The exploration activities for West Cameron Area Blocks 658 , 660, and
661 will not warrant utilizing any new or unusual technology that may affect
coastal waters.
E. Location of tho Propostd Activities
West Caatron Arta Blocks 658 , 660, and 661 art locattd approximately
ont hundred forty-five miles, ont hundred forty-nine miles, and ont hundred
fifty-one m<1es, respectively, froa Intracoastal City, Louisiana and
approxlaately one hundred twenty-two alios, one hundred twenty-five miles,
and one hundred twenty-six alios, respectively, froa the Louisiana coast of
Caaeron Parish. Figure 1 presents the legation of the blocks In relation to
the Louisiana coast, as well as the geographic relationship bttwttn West
Caaeron Area Blocks 658 , 660, and 661 and the other OCS lease areas.
5
I I I . DESCRIPTION OF THE AFFECTED ENVIRONMENT AND IMPACTS
A. Physical and Environmental
1. Commercial Fishing
The Mississippi Delta area 1s known as the "Fertile Fisheries Crescent"
because It Is one of the oost productive commercia1 fishery grounds In the
world. As a result, Louisiana Is traditional»v me of the top states in the
nation In terms of commercial fisheries, wt. . «.J 1,834,884,407
pounds worth $118,754,742 in 1984 and 1,822,321,060 pounds worth
$109,765,223 in 1983 (USDC, NMFS, 1985). Ten species of finfish and
shellfish represen; 99 percent of Louisiana's commercial fishery landings:
brown shrimp (Penaeus aztecus). white shrimp (£. setIferus). blue crab
(Callinectes sapidus), oysters (CriSSQStrgi YlrqlnlCi), Gulf menhaden
(Brevoortia patrongs), red snapper (Lut.lflnus campechanus), black drum
(P qonias cromis), red drum (Scianops ocellatus), spotted seatrout
(Cvnoscion nebulosus). and striped mullet (Mugil ceohalus). All but rne of
these species are estuarine dependant.
The most valuable species to Louisiana are the brown shrimp and white
shrimp, which together produce by far the greatest jhrlmp harvest in the
Gulf of Mexico. Louisiana shrimp fishermen harvested 106,681,071 pounds
(heads-on) of shrimp worth $143,116,739 in 1984 (USDC, NMFS, 1985).
Although harvest data for these species are not separated fer statistical
purposes, tho brown shrimp dominates tht Louisiana shrimp harvest, as It Is
6
tht most abundant species in that region of tht gulf (White and Boudreaux,
1977). Both of thtst shrinp art tstuarlne dependent and havt siniiar lift
histories, with the major differences being the tine and location that the
various life stages begin and reach their naxinun levels. Generally,
spawning occurs offshore with the resulting larvae nlgratlng inshore to
develop In estuaries. Brown shrinp spawn fron Novenber to April in 30 to
120 meters of water, while white shrinp spawn fron Narch to October In 8 to
34 meters (Benson, 1982). Juvenile and adult brown shrinp migrate offshore
fron Nay to July, and white shrinp migrate between June and November
(Benson, 1982).
The proposed petroleum activities
have no Impact on the harvest of brown
beyond the outer limits of the harvest
1986, Visual No. 2).
In Uest Cameron Area are expected to
or white shrimp as these blocks are
area for these species (USDOI, MMS,
The Gulf menhaden or "pogy" fishery is Louisiana's second most valuable
fishery, accounting for 1,756,285,058 pounds worth $68,801,156 In 1984
(USDC, NMfS, 1985). Gulf menhaden spawn offshore from mid-October through
March in 40 to 140 meters of water, with the larvae subsequently moving Into
shallow, low salinity estuaries froa February to Nay (Benson, 1982). Here
in the shallow estuaries, the larvae metamorphose Into juveniles and change
from being carnivores to filter-feeding omnivores. The juveniles and
subadults migrate from the estuaries Into offshore water* from December
through February (Benson, 1982). The adults only rarely venture far
offshore (Hoese and Moore, J indeed, about 93 percent of the commercial
7
fishing effort occurs within ton railes of short (US00I, MNS, 1983). Tht
activities as propostd art unllktiy to havo any averse tfftct on tho
menhaden fishing as West Cameron Arte Blocks 6S8, MO, and 661 lit outsido
tht "Principle Menhaden Harvest Arta" (USDOI, MNS, 1986, Visual No. 2).
Tht Easttm oysttr Is most abundant in the Gulf of Mexico from Aransas
Bay, Texas, to Apalachicola Bay, Florida (Beccasio et al., 1982). Louisiana
oystermen landed 13,488,274 pounds of oysters worth $24,476,569 In 1984,
making oysters Louisiana's third most valuable fishery (USDC, NMFS, 1985).
Oysters t„rive at salinities between 5 and 15 parts ptr thousand and wattr
dtpths of 2.5 to 8 meters (Beccasio et al., 1982). Oysters spawn inshore
during the summer, and the free-swimming larvae attach and develop in the
same estuarine habitat. The proposed activities In West Caaeron Area Blocks
659, 660, and 661 are not expected to have any Impact on the oyster fishery
in Louisiana.
The blue crab ranges from Nova Scotia to Uruguay and supports the
largest crab fishery In the United States (Narlne Experiment Station, 1973).
In 1984 , 29,692,067 pounds of crabs worth $8,395,002 wort landed In
Louisiana (USDC, NMFS, 1985). Blue crabs Inhabit shallow water and can be
found In high salinity sounds, bays, and channels where they spawn from
March through November, with a peak from May to September (Benson, 1982).
The resulting planktonic larvae pass through several molts and stages before
the juveniles drop to the bottom of the estuarine nurseries, where they
remain throughout the yeer (Benson, 1982). The fisheries for blue crabs Is
8
John EL Chmnom at Avmoo-, Ino.
unllktiy to bt significantly affected by axploration activities In thtst
blocks as thty art offshore of tho coastal and estuarine waters In which
this fishery operates.
Rtd snapptr landings In Louisiana amounted to 1,487,456 pounds worth
$2,479,817 1n 1984 (USDC, NMFS, 1985). Snappers art demersal predatory fish
that art common ovtr or ntar banks, coral reefs and outcrops, submarInt
ridges, rocks, and, especially offshort Louisiana, man-made structures such
as shipwrecks and offshort drilling platforms (Benson, 1982; Hardy, 1978).
Red snapper spawn in the Gulf of Mexico from June to Mid-September, in water
depths of 16-37 meters, over bottoms of hard sand and shell with rocky reef
areas; spawning may actually take place at the surface (Hardy, 1978).
Little or no informatlo Is available about larval red snapper, but
juveniles are typically found Inshore in high salinity (24 to 40 ppt) water
9-91 meters In depth (Benson, 1982). The proposed activities should create
a suitable habitat for red snapper.
The drums (Sc'inldae) are one of the three most abundant families of
fishes in the Gulf of Mexico in terms or biomass, and they outnumber all
other families In the number of species (Hoese and Moore, 1977). Three
species of drum are commercially Important to Louisiana. These Include
black drum, red drum, and spotted seatrout. In 1984, Louisiana landed a
total of 5,557,259 pounds of drums worth $4,290,068 (USDC, NMFS, 1985). The
red drum fishery Is tht most valuable, accounting for 51 percent of the
total drum catch while the spotted seatrout and black drum account for equal
amounts of tha remainder.
9
•Man C Chmnom al Anxtoo-, ataou
Typically, sclanlds art euryh-llne species that spawn In shallow
nearshore Gulf waters, producing larvae that enter coastal estuaries for
developaent (Benson, 1962; Johnson, 1978; Hoese and Moore, 1977). Spotted
seatrout spawn at night In deep channels and depressions adjacent to shallow
flats, grass beds, and bayous In the estuary, froa March to Septeaber with a
peak froa April through July (Benson, 1982). The larvae associate with
bottoa vegetation (predominantly sea grasses) or shell rubble In channel
bottoms (Johnson, 1978). The juveniles spend at least their first 6 to 8
weeks on the nursery grounds, usually within SO aeters of the shoreline,
urVI late fai • /ner they mo/* Into tne deepar parts of the estuary (Benson,
193?). Adult spotted seatrout rarely leave tha tstturlts (Benson, 1992).
Black drum spawn from February to April In or near tidal passes and in
open bays and estuaries (Benson, 1982). Tht larvae art transported to
shallow estuarine marshes, but may move to deeper estuarine wattrs or
shallow wattrs off sandy beaches as large juveniles (Johnson, 1978). Adult
migration 1s largely restricted to spring and fall movement through the
passes between estuaries and nearshore environments (Beccasio et al., 1982).
Red drum Inhabit estuaries and coastal waters out to 22 kilometers from
shore, at depths up to 40 maters (Becasslo et al., 1982). Spawning occurs
1n the fall and winter, primarily from September to November, and the larvae
are carried by currants Into shallow estuaries and bays whtrt thty tend tt
associate with seagrasses and marshes (Johnson, 1978). They usually reaain
In or near estuaries until thty art three years old, but some leave at the
end of their first year, migrating Into the Gulf In the fell (Benson, 1962).
10
Louisiana harvested 3,157,215 pounds of mullet worth $999,936 In 1964
(USDC, NMFS, 1985). Mullets are one of the most abundant fishes In the Gulf
of Mexico (Hoese and Moore, 1977). Mullet have been observed In Alabama
Inland as far as 607 kilometers from thi: Gulf, and offshore as far as 80
kilometers and as deep as 1,385 meters (Benson, 1982). Mullet spawn from
October to Nay, and some females spawn more than once In a season (Benson,
1982). Larvae move Inshore 1n the spring and the juveniles are found In the
shallow areas of the estuaries. Offshore movement from the estuaries occurs
during the fall (Beccasio et a l . , 1982).
Overall, commercial fishermen have benefited from the growth of the
petroleum Industry in the OCS waters of the Guif of Mexico. While
technological Improvements have enabled commercial fishermen to Increase the
volume of landings, development of thi petroleum Industry has also had a
positive Impact on fishing. Because OCS petroleum development Is dependent
on extensive marine vessel utilization, harbors and ports have been
Improved, port access waterways have been expanded and Improved, and tho
availability and quality of marine assel maintenance and repair facilities
have Increased significantly. These Improvements have definitely had a
positive effect on fishermen (Lassiter, 1980).
2. Shipping
A designated shipping fairway Is located approximately one mile south
of West Cameron Area Blocks 660 and 661 and approximately three miles south
11
of West Cameron Area Block 658. It Is unlikely that marine vessels
supporting these blocks will utilize the shipping fairway to gain access to
the support bese; therefore, it Is unlikely that the marine vessels will
have a significant effect on fairway traffic. The drilling rig and each of
the marine vessels will be equipped with all U. S. Coast Guard required
navigational safety aids.
3. Recreation
The open Gulf encompasses a broad expanse of saltwater which Is
utilized by numt-ous sports fishermen and a small but rapidly Increasing
number of SCUBA divers. Many fishermen charter boats to deep-sea fish and
sport dive in the northern Gulf. The states of Alabama, Mississippi, and
Louisiana support approximately 120 charter boats which conduct a majority
of their fishing activities In the waters of the OCS (USDOI, MMS, 1983).
Petroleum platforms in the northem Gulf provide recreation for fishermen
and scuba divers because they act as artificial reefs attracting and
establishing aquatic communities Including highly sought after food and
sport fishes. The reef effect created by petroleum platforms 1s well known
and 1s evidenced by the numerous private boat owrers who regularly visit
offshore facilities to harvest food and sport fishes.
Frequently, offrhore rigs and platforms serve as navigation points for
small commercial and recreational marine craft. Manned drilling rigs and
platforms can also provide a haven for small craft operators forced to
abandon their vessels during stones or following boat accidents. The
12
a*Bo%FB at OkmnkWB at AmBBOm eWo.
Installition and ust of navigational aids, lifesaving equipment, and othtr
saftty requirements pursuant to Coast Guard regulations are standard
procedure for drill rigs and marine vessels utilized by Union Exploration
Partners, Ltd.
4. Cultural Resources
Visual No. 4 from the Final Environmental Impact Statement (USDOI, NNS,
1986, Indicates that West Cameron Arta Blocks 658, 660, and 661 fall outside
tht zont designated as artas with a high probability of historic and
pre-historic cultural resources; therefore, It 1s unllktiy that thtrt will
bt any significant Impacts upon culturally significant features.
5. Ecologically Sensitive Features
Portions of West Cameron Area Blocks 658, 660, and 661 are located
within the one-mile and the three-mile zone of Bright Bank. If operation:
art conducted within the restrictive zones of <e bank, all cuttings and
fluids will be shunted.
The Intracoastal City, Louisiana support base which will be utilized as
the operations base for the West Cameron Area Blocks 658, 660, and 661
explorations activities Is located approximately twenty-three miles
northeast of Rockefeller State Refuge and approximately sixteen miles
northwest of Marsh Island Wildlife Refuge (USDOI, NNS, 1986, Visual No. 3).
13
«Jmn%M at tfmVmWOml at A%mmmmy a>naV '
In general I f all activities are executed as planned, encountering no
unusual circumstances, the e.. 'ironmentally sensitive areas will not be
affected.
6. Existing Pipelines and Cables
A review of company f i le data Indicated that there are no known
pipelines or cables located In West Cameron Area Block 658, 660, and 661.
Union Exploration Partners, Ltd., Is not aware of any pipelines or cables
located in these blocks.
7. Other Mineral Uses
There are no other know; mineral resources located in or near West
Cameron Area Blocks 658 , 660, <jid 661.
6. Ocean Dumping
The major sources of ocean dumping related to OCS petroleum exploration
activity are drill ing fluids, or "muds," and dri l l cuttings. After the
exploratory dril l ing In West Cameron Area Blocks 658, 660, and 661 Is
completed, Union Exploration Partners, Ltd., does anticipate dumping their
exca water-based drilling fluids (approximately 700 bbls./well). If any
oi -based mud 1s used in the drilling operations, 1t wil? be transported to
shore for proper disposal.
14
John LW Chmnom at Ammoo*, Ino.
Drill cuttings ir t brought up by tht drilling aud and range in size
froa grains of sand to pebbles. Thtst cuttings art separated and sifted and
then disposed overboard. Treated domestic wastes and dri l l wattrs will also
be disposed at the proposed drilling site. There will be no Intentional
discharge of *ny oily or hazardous materials In violation of DOI or EPA
regulatIons.
9. Endangered or Threatened Species
Endangered or threatened species which alght occur In West Caaeron
Area Blocks 658 , 660, and 661 are blue whale (Balaenoptera musculus).
finback whale (Balaenoptera physalus). humpback whale (Megaptera
novaeangliae). sel whale (Balaenoptera borealis). sperm whale (Phvseter
catodon). Kemp's ridley turtle (Lepidochelys kemoii). green turtle
(Chelonia avdas). hawksbill turtle (Eretmochelys imbricata). leatherback
turtle (Permoche'iYS. coriaceaj and loggerhead turtle (Caretta caretta)
(USDOI, Region IV Endangered Species Notebook).
Endangered and threatened species expected to occur In the vicinity of
the onshore bast art Arctic peregrine falcon (Falco oereorinus tundrius) and
American alligator (Alligator alssissipplonsis) (USDI, Region IV Endangered
Species Notebook). Arctic peregrine falcons are migrants through the area
and are not considered a coaponent of the resident bird population. The
American alligator Is classified as threatened in Louisiana due to
similarity of appearance. This species Is neither endangered nor threatened
biologically In Louisiana and a regulated harvest Is pend tted under Statt
15
J o h n Cm ChmYnoo at Asttoom, atari.
Law (USDI, Region IV Endangered Species Notebook). No impacts on American
alligators art expected. Tht presence of marine mammals 1n coastal
Louisiana Is considered sporadic and probably no resident populations exist.
It Is unllktiy that onshore or exploration activities related to Uest
Cameron Area will have any effect on the previously named species.
B. Socio-Economic Impacts
In accordance with DOI/MMS guidelines (OS-7-01), dated November 20,
1980, the Initial OCS Data Base Report will be developed for submission on
or before the prescribed due date. Subsequent Environmental Reports
provided by Union Exploration Partners, Ltd., will address this data ai.d
related activity Impacts as requlnsl.
16
John tL Chmnom A ABBOO-, Arx
IV. UNAVOIDABLE ADVERSE IMPACTS
The greatest threat to the natural environment Is caused by Inadequate
operational safeguards that aay cause or contribute to an oil spill or well
blowout. These accidents can be greatiy reduced in nuaber by utilizing
trained operational personnel and employing all available safety and
pollution control systeas. These measures are standard operating procedure
for Union Exploration Partners, Ltd. Union Exploration Partners, Ltd., has
an approved 011 Spill Contingency Plan.
It should be noted that aost large crude oil and refined products
spills have occurred during transportation and not during drilling or
production operations. Furthermore, the probability of an oil spill
occurring during exploratory drilling operations Is low (Danenberger, 1976).
Transportation and river runoff contribute an estimated 34.9 percent and
26.2 percent, respectively, to the hydrocarbon contamination of the world's
oceans while offshore production activities account for only 1.3 percent
(National Academy of Sciences, 1975). Natural seeps of petroleum and
natural gas, which occur throughout the northern Gulf of Mexico (Zo Bell,
1954; Geyer, 1979), contribute an estimated 9.8 percent to the contamination
of the world's oceans (National Academy of Sciences, 1975). Additionally,
it was noted in the executive summary of a recent study of petroleum
production platforms In the central Gulf of Mexico (Bedinger, 1981), that
natural disturbances (I.e. river flooding and storms) can more greatly
affect noraal biological communities than the current Industrial developaent
of the Louisiana OCS. Tht preceding discussion Is not Intended to minimize
17
John £L Chmnce A Amsoo-, Inc.
tht significance of major oil spills resulting from potroioua exploration
and production activities but is provided to establish a perspective
relative to their probable occurrence.
Thirteen of the forty-six blow-outs on the OCS between 1971 and 1978
were associated with exploratory drilling activities, none of which released
any oil to tho aWi.te environment (Danenberger, 1980). The IXTOC I spill of
1979, however, rctrates that advanced drilling technology and available
safety and pollut ivi control systems ar* not infallible. Nost spills are
subjected to immediate containment and cleanup efforts. The ultimate fate
of oil spilled in the marine environment 1s generally considered to be one
or a combination of the following: evaporation and decomposition in the
atmosphere, dispersal in the water column, incorporation Into sediments, and
oxidation by chemical or biological means (National Academy of Sciences,
1975).
The unavoidable adverse Impacts that will occur as a result » the
exploratory drilling and discharging of drilling fluids, and treated sewage
will be few In number and temporary in nature. The primary adverse impacts
Include a localized degradation of water and air quality In the vicinity of
the drilling site, the potential obstruction to commercial and recreational
fishing vessels, and the disruption and/or killing of benthic and/or pelagic
organisms during location of the drilling rig and during disposal of muds,
cuttings, and domestic wastes and sewage.
18
Discharging froa tht drill site Is inevitable during OCS operations,
particularly during exploration. materials that aay contain oil or
othor hazardous materials, and therefore would have a auch greater adverse
lapact. on the environment, will not be discharged Intentionally. Any
discharging will be done pursuant to all DOI and EPA regulations. The
discharges to be disposed overboard as a result of the exploration activity
will Include domestic ste and sewage that 1s treated on the rig before
discharging, drill cuttings, and excess water-based aud.
The environaantal fate and effects of drilling auds and cuttings has
been extensively addressed In a recent symposium (St* Ayers et al., 1980 for
detailed discussions). The discharging of drill cuttings and water-based
aud will result the burial of benthic organisms and possible toxic effects
on aarine organisms in the immediate vicinity of the discharge. It is
expected, however, that pelagic and benthic organisms will repopulate the
area rapidly after discharging if the effects are minimal and intermittent
as expected.
Offshore activities generate a small but significant amount of air
pollutants due to the emissions of diesel engines; therefore, the
deterioration of air quality is unavoidable In an OCS operation area. In
aost Instances, these emissions affect only the immediate exploration
activity site and are rapidly dissipated by the atmosphere depending upon
climatic conditions. An Air Quality Review Report has been prepared for
vest Cameron Area Blocks 658, 660, and 661 and Is Included as an attachaent
to the Envlronmontal Report.
19
Commercial and recreational fishing would be affected by OCS
development, but primarily in terms of inconvenience and interference.
Although the unavoidable adverse impacts could include some smothering of
shellfish, snagging cf trawl nets, reduction of area presently used for
unrestricted fishing, and minimal finfish killing, commercial fishing
activities would not be significantly effected, except in the unlikely event
of an oil spill. An oil spill would result in serious economic losses due
to the contamination of commercial fish species over a large area.
There is a remote possibility that offs!. areas of historical,
cultural, or biological significance could be damaged or destroyed by OCS
exploration operations. Visual No. 3 from the Final Environmental Impact
Statement (USDOI, MHS, 1986) indicates that no archeological, cultural, or
historic ?reas are in the vicinity of West Cameron Area Blocks 658, 660, and
661. Union Exploration Partners, Ltd., will make every effort to avoid
disturbing any historically, culturally, o** biologically significant
feature.
20
•John CL CHano9 A A&soomp Inc.
LITERATURE CITED
Ayers, R. C, N. L. Richards and J. R. Gould 1980 Proceedings of a svmpcslua. Research on environmental fate
and effects of drilling fluids and cuttings. Washington, D.C. 1,122 pp.
Beccasio, A. D., N. Fotherlngham, A. E. Redfleld, et. al. 1982 Gulf coast ecological Inventory: user's guide and Information base.
Biological Services Program, U. S. Fish and Wildlife Sorvice, Washington, D.C: FWS/OBS 82/55. 191 pp.
Bedinger, C. A., Jr. 1981 Ecological investigations of petroleum production platforms in
the central Gulf of Mexico. Volume III: Executive Summary. Submitted to the Bureau of Land Management, New Orleans, Louisiana. Contract No. AA551-CT8-17. 29 pp.
Benson, N. G., ed. 1982 Life history requirements of selected finfish and shellfish In
Mississippi Sound and adjacent areas. U. S. Fish and Wildlife Service, Office of Biological Services, Washington, D.C: FWS/OBS-81/51. 97 pp.
Danenberger, E. P. 1976 Oil spi l ls , 1971 - 1975, Gulf of Mexico Outer Continental Shelf.
Geological Survey Clrct'1 741. 47 pp.
Danenberger, E. P. 1980 Outer Continental Shelf 011 and Gas Blowouts. U.S.G.S Open-File
Report. 80-101. 15pp.
Geyer, R. A. 1979 Naturally occurring hydrocarbon seeps 1n the Gulf of Mexico and
Caribbean Sea. College Station, Texas: Texas AAM University Press.
Hardy, J . D. J r . 1978 Development of fishes of the Mid-Atlantic Bight. Volume I I I :
Aphredoderidae through Rachycentrldae. U. S. F1sh and Wildlife Service, Office of Biological Services, Washington, D. C : FWS/OBS-78/12. 394 pp.
Hoese, H. D. and R. H. Moore 1977 Fishes of the Gulf of Mexico. Tr its AAM University Press,
College Station, Texas. 327 pp.
Johnson, G. D. 1978 Development of fishes of the Mid-Atlantic Bight. Volume IV:
Carangldae through Eph1pp1dae. U. S. Fish and Wildlife Service, Office of Biological Services, Washington, D. C : FWS/OBS-78/112. 314 pp.
21
Lassiter, Ronald C. 1900 Tho Georges Bank: Fish and Fuel. Ninth Annuel See Grant Lecture,
NIT, Cambridge, Massachusetts.
Narlne Experiment Station 1973 Coastal and offshore anvironmental Inventory Cape Hateras to
Nantucket Shoals, narlne Publication Series No. 2, University of Rhode Island.
National \cademy of Sciences 197S Petroleum In tha marine environment. Washington, D.C. 107 pp.
U. S. Departmant of Commerce, National Narlne Fisheries Service 1985 Louisiana landings In 1904 and 1903. Unpublished report. National
Narlne Fisheries Service, New Orleans, LA.
U. S. Department of the Interior, Fish and Wildlife Service 197' Endangered and threatened species of the southeastern United States.
Region IV, Atlanta, Georgia (periodically updated).
U. S. Department of the Interior, Minerals Management Service 1903 Final Regional Environmental Impact Statement, Gulf of Mexico.
Vol. 1. Prepared by Minerals Management Service, Gulf of Mexico OCS Region, Metairie, Louisiana. 527 pp.
u. S. Department of the Interior, Minerals Management Service 1986 Final Environmental Impact Statement, Proposed 011 and Gas Lease
Sales 110 and 112, Gulf of Mexico OCS Region, Prepared by Minerals Management Service, Gulf of Mexico OCS Region, New Orleans, Louisiana.
White, C. J. and C. J. Boudreaux 1977 Development of an areal management concept for Gulf penaeld shrimp.
Louisiana Wildlife and Fisheries Commission, Technical Bulletin No. 22.
Zo Bell, C. E. 1954 Marine bacteria and fungi, Fisheries Bulletin 55 (89): 217 - 222.
22
«Jta*%rt H Grist* JO a) at A9MOa~, aYso.
APPENOIX 1
COASTAL ZONE MANAGEMENT
CONSISTENCY CERTIFICATE
23
Joim Em Chmnom M Amwoomj Sno.
COASTAL ZONE MANAGEMENT
CONSISTENCY CERTIFICATION
EXPLORAIION
Typt of Plan
WEST CAMERON AREA BLOCKS 658 (6-6609), 660 (6-6611) A 661 (6-6612)
Arta and Block
Tht propostd activities described In detail in tht attached Plan of Exploration comply with Louisiana's approvod Coastal Management program and will bt conducted In a manner consistent with such Program.
Arrangements havt been madt with tht Statt Times In Baton Rougt, Louisiana to publish a Public Notlct of tht proposed activity no later than 4uoe.2K.1998
UNION EXPLORATION PARTNERS, LTD.
Lessee or Operator
Certifying Official
Datt
V
24
f
Air Quality Review For
West Caaeron Area Blocks 658, 660, and 661 OCS-G-6609, 6611, and 6612
Union Exploration Partners, Ltd. P. 0. Box 51388
Lafayette, Louisiana 70505-1388
Subaltted to Ted J. Russell
District Drilling Superintendent
June 7, 1
PrepaYed by John E. Chance & Associates, Inc. Regulatory 6 Envlronaental Division
Project No. 8€
V
25
John Chmnom A Ammoo^ Ino.
r Projected Emissions Schedule foi' Project
I . General Information
Location of Faculty - west Cameron Area Blocks 658, 660, and 661 Nama of Rig/Platform - Semi-submersible
Owner/Operator - Union Exploration Partners, Ltd. P. 0. Box 51388 Lafayette, Louisiana 70505-1388
Contact Person - Ted J. Russell 01 strict Orilling Superintendent
Project Start Oate - October 1, 1988 Project End Date - August 15, 1989
88,459 Feet to be Drilled 125 Niles Offshore
II. Total Emissions for Drilling
Total Time for Drilling 8 wells: 11 months
Projected Emissions (Tons/Month of Drilling)
Emitted Substance CO S02 N0X VOC TSP
Drilling Operations 2.21 0.83 8.36 0.36 0.73
A. Transportation Emissions, Drilling
Projected Emissions (Tons/Month of Drilling)
Emitted Substance CO S02 N0X VOC TSP
Crewboat 0.00 * 0.57 0.03 *
Supply Boat 0.01 0.01 0.03 0.00 *
Helicopter 0.10 0.01 ' 0.02 0.02 0.01
26
Jmhn LW Chmnom * Ammmam Ino.
6. Miscellaneous, Drilling
Projected Emissions (Total Tons)
Emitted Substance CO SO, »x VOC TSP
Tow Tugboat(s) 7.69 * 35.52 2.04 *
Cementing Skid 0.32 0.10 1.40 0.12 0.11
Crewboat horsepower of 2,500 Intracoastal City, Louisiana Waiting Time .5 hour(s) per trip
7 trip(s) per week
Supply Boat with 200 kw generator Intracoastal City, Louisiana Waiting Time 4 hours(s) per trip
2 tr1p(s) per week
Helicopters Intracoastal City, Louisiana
7 trip(s) per week
Towing Tugboat horsepower of 4,0u0 Working for 6 day(s)
Cementing Skid horsepower of 1,000 Working for .5 day(s) per well
III. Project Summary, Total Emissions
Emitted Substance CO S02 N0X VOC TSP
Allowable (tons/yr) 85000 4163 4163 4153 4163
Projected Emissions (Tons/Year)
Yeer 1 32.04 9.12 127.47 6.76 6.00
Total Emissions are comprised of all Drilling Emissions.
27
Ill Project Summary, Total Cal ssions (cont'd.)
This aay Include the following which are not specified In each section:
- Welding machines and cranes utilized during construction and drilling operations.
- Crane(s), Generator(s), Heater Treater, and Compressor utilized during production.
IV. Findings of Air Quality Review
As per DOI-MMS regulations, this facility is exempt from further air quality review as It has been determined that Its operation will not have a significant adverse environmental Impact on air quality. Calculated emissions are for a worst case condition. Actual emissions from this project will probably be lower.
V. Methodology
Drilling - horsepower-hour/ft drilled method Boats - horsepower-hour method Helicopters - landing/takeoff (LTO) cycle method All Others - horsepower-hour method
VI. References
AThOSPHERIC EMISSIONS FROM OFFSHORE OIL DEVELOPMENT AND PROOUCTION, EPA-450/3-77-Q1* (June, 1977).
COMPILATION OF AIR POLLUTANT EMISSIONS FACTORS, EPA Report AP-42 (September, 1985), 4th Edition.
* The EPA does not provide S02 and TSP emission factors for boat engines or TSP emissions for diesel powered electrical generators.
28
JboVf C Chmnom A Ammoom, Aa*.
BAROID
irold
Aquagel Zeogel
Q-Broxin
WATER-BASE LIGNOSULFONATE MUU SYSTEM COMPETITIVE NOP PRODUCTS
JflE. MAGCOBAR MILCHEM
Iaco Bar
Imco Gel Iaco Brinegel
Iaco Best
weighting Material
Magcobar Nil-Bar
Clays (VUcoslf lors)
Magcogel Sal t Gel
Mil-Gel Sal t Water Gel
Super Visbestos
Thinners
Iaco vr io Spersene Unical Carbonox Inco Lig Tannathin Ligco Sodiun Chroaate Sodiua Chroaate Sodiun Chroaate Sodiun Chroaate
Cellex Imco-CMC
Fiuij^ css otrtro oarrts
Magco-CMC Milchem CMC
DESCRIPTION
Barite (Barium Sulfate)
Wyoming Bentonite Attapulgite clay
for sa l t water auds.
Asbestos Material
Ferrochrone Lignosulfonate
Chrone Lignosulfonate Processed Lignite Sodiun Chromate
(Chrom Additive for CLS Products)
Sodiua Carboxymethylcellulose
Llat Caustic Soda
S. A. P. P.
Bicarbonate of Soda
Line Caustic Soda
Alka l in i ty . pH Control Additives TTie CTi?
Caustic Soda Caustic Soda
.alcium Removers
Inco Phos (SAP?) S . A. P. P.
Bicarbonate of Soda
Bicarbonate of Soda
Defoamer
S. A. P. P.
Bicarbonate of Soda
Hydrated Lime Sodiua Hydroxide
Sodiua Add Pyrophosphate
Sodiua Bicarbonate
Aluminum Stearate
Micatex Wall Nut
TRAflE NAME
OS
Drispac
Flosal
Aluminum Steara ts
Iaco Mica Iaco Plug
COMPANY
Aluminum Stearate
Aluminum Stearate
Lost Circulation Materials
Magco Mica Nut Plug
Mil Mica Mil Plug
MISCELLANEOUS PRODUCTS
DESCRIPTION
Louisiana Mud
Dri l l ing Specia l t ies , Inc.
Dril l ing Specia l t ies , Inc.
Aluminum Stearate
Mica Flakes (Graded) Ground Walnut Hulls
(Graded)
Chrome Lignosulfonate - Thinner Polyanionic Cellulose - Fluid Loss
Control Asbestos Naterial - vi?-os1f1er
A T T A C H M E N T VIM