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184-001
Ima act Well History File Covei~l~ge XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direCt inspection of the file. RESCAN DIGITAL DATA OVERSIZED (Scannable) [] Color items: [] Diskettes, No. [] Maps: [] Grayscale items: [] Other, No/Type [] Other items scannable by large scanner [] Poor Quality Originals: OVERSIZED (Non-Scannable) [] Other: · ~,: C]. Logs of various, kinds NOTES: Other BY: BEVERLY BREN VINCENT SHERYL. MARIA LOWELL DATE: /SI Project Proofing BY:' BEVERLY BREN VINCENT SHERYL MARIA LOWELL Scanning Preparation qx30 = ,c~ ~0 BY: BEVERLY BREN VINCENT SHERYI.~MARIA) LOWELL Production Scanning PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION: '~ .YES Stage 2 IF NO IN STAGE 1, PAGE(S) DISCREPANCIES WERE FOUND: __ YES BY: E~EVERLY BREN VINCE~ARIA LOWELL (SCANNING IS COMPLETE AT THIS POINT UNLESS SPECIAL ATTENTION IS REQUIRED ON AN INDIVIDUAL PAGE BASIS DUE TO QUALITY. GRAYSCALE OR COLOR IMAGES) NO NO DATE///:,//,~,~,._ ,,~,%,.__~. "~;, IS~ RESCANNED BY: BEVERLY BREN VINCENT SHERYL MARIA LOWELL DATE; General Notes or Comments about this file: Is~ Quality Checked TO SUBJECT ~ SIGNED APR ~ 0 1387 - Oil & ~.a_s,_Co ns._ Commission . __-- .. _.-. · . _ . . .. : _ - . _ ._ ._ DATE REDI~ 4S 469 POLY PAK (50 Sets) 4P 469 JSIGNED SEND PARTS I AND 3 INTACT. - PART 3 WILL BE RETURNED WITH REPLY. carbonless '. l~e wish to bring to your attention thae the Comisston has no~2' yet r~ceived th~ following r~quirod ttem~ which our record8 Indicated was completed ~ . Article 536(b) of Title 20, Chapter 25, Alaska Adminiserative Code, stipulates that this material shall be filed within 30 days after completion of a drilled.well. Flease submit tile above missing material. ,. k_..z - l/· ,,..~1 ~ -w.,/' -,- C. V. Chatterton/ Chairman lc~C.024 ARCO Alaska, Inc. ARCO Explora;,...~- Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 S.~IP LE TR3uYSMITTAL Hand Carried by Larry SHIPPED TO: Alaska Oil & Gas Conservation Commission -3001 Porcupine Drive Anchorage, AI_aska 99_501 Attn: Mr. Mike Minder DATE. June 20,1985 OPERATOR: Arco S:%~IPLE TYPE' Dry Ditch SAMPLES SENT' SEE ATTACHED LIST Brontosaurus #1&i-A NU~{BER OF BOXES: 12 UPON RECEIPT OF/T~E~E ~.SA/4PLES, PLEASE NOTE ANY DISCREP.~J~CIES AND ~[~IL A SIGNED COPY O~ THIS ~TO: ~ RECEIVED BY' ARCO ALASKA, INC. P.O. BOX 100360 ANCHORAGE, ALASKA 99510 ATTN: R. L. BROOKS. REC JUN o 1985 Nas~ [iii & ~ ,~,s. ¢0mmissl__otl DATE:-~-~.~.__~ A~cn,,,aqa ARCO Alaska, Inc. is a Subsidiary o! AtlantiCRichfieldCompany Date: June 11,1985 Subject: ~..,~ interr~al Correspond,.,.~e ~ ~ Brontosaurus #1&I-A dry ditch samples due the State of Alaska.. From/L~ation: Judy McCall/Paleo Lab/ABV-100 To/Location: Tom Sterret/AN0711 Brontosaurus #1 Dry Ditch 60/90-1950 1980-2700 2700-3280 3280-3890 3890-4430 4430-5120 5120-5450 Brontosaurus #1-A Dry ditch 3436-4080 4080-4800 4800-5520 5520-6220 6220-6660 Co~men~ ~ or Corrc ~ c~ions Please make any comments and or corrections,sign,date and return to me. Thank you ..... DATE ARCO Alaska, Inc. i. a Sub~idlam/of AllanflcRichfleldCompany ARCO Alaska, Inc. ARCO Explora~.~, - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 HAND CARRIED BY Larry S,'~qP LE TR;J~S~IITTAL SHIPPED TO' AKas)-a ?iL f: 'E · Alaska Oil & GAs Conservation Commission 5001 Porcupine Drive Anchorage,Alaska 99501 DATE' June 10,1985 OPERATOR: Arco S~.~IPLE TYPE- Core chips SAMPLES SENT: see attached list BrOntosaurus i&i-A NkME- NUMBER OF BOXES: 23 SHIPPED BY' ~,~.~~_~ff/~/[./.2--- ///'~-~:~: Paleo Lab Tech COPY OF THIS ?~R~ TO: ARCO ALASKA, INC. P.O. BOX 100360 ANCHORAGE, ALASKA 99510 ATTN: R. L. BROOKS. RECEIVED BY: DA~E: ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany ._ : ...... -.ii ARCO Alaska, Inc. Internal Corresponds- Date: June 4,1985 Subject: Brontosaurus #1 & 1-A Core Chip samples due the State Fr°m/L~ation:Judy McCall/Paleo Lab-ABV T~Locaflon: Mr. Tom Sterrett/ANO711 Brontosaurus #1 3462-3475 3476-4393 No Sample 4394-4405 4406-4414 Brontosaurus #1-A 5906-5909 5910-5947 No Sample 5948-5970 5971-5978 5979-6319 No Sample 6320-6337 6338-6353 6354-6360 6361-6373 6374-6386 6387-6399 6400-6412 6413-6425 6426-6438 6439-6452 6453-6455 6456 No Sample 6457-6469 6470-6483 6484-6511 6512-6639 No Sample 6640-6659 TD Comments and or Corrections The above is a complete list of Brontosaurus l& 1-A Core chips due the State of Alaska. Please Sign,date and return to: Judy McCall/Paleo Lab-ABV Thank You ARCO Alaska, Inc. Is a Subsidiary of AtlanllcRIchfleldCompan¥ AR3B-6001 j U N l o ARC, O -Exploration Company ARCO Oil and Gas Company-,~.~ To State of Alaska 0il & Gas Conservation Commission 3001 Porcupine Dr. Anchorage~ AK. 99501 ' Record Of Shit' ent Of Confidential Information iD~strict Page i_ of 2_ i Alaska ,~om ARCO--Alaska, Inc. Exploration Operations P 0 Box 100360 99510 · . 700 G Street 99501 Attn' Mr. Bill Van Alen Anchorage, Ak. Attn- Mr. Sam L. Hewitt -~ Enc',osea Subject L_ Under separate cover .~ V~a _.hand carried Quantity Map number & description 1 BL I Sepia 2" DIL-SFL, Runs 1-3, 90' - 6657'. I BL 1 Sepia 5" DIL-SFL, Runs 1-3, 90' - 6657'. 1 BL I Sepia 2" BHC-Sonic, Runs 1-3, 90' - 6663'. 1 BL 1 Sepia I BL 1 Sepia i BL I Sepia I BL 1 Sepia I BL I Sepia 1 BL I Sepia I BL I Sepia I BL I Sepia 1 BL 1 Sepia 1 BL 1 Sepia 1 BL 1 Sepia 5" BHC-Sonic, Runs 1-3, 90' - 6663'. 2" Comp. Neutron-Formation Density, Runs 1 and 3, 90' - 6661'. 5II Comp. Neutron-Formation Density, Runs I and 3, 90' - 6661'. 2'l Comp. Formation Density, Runs 1 and 3, 90' - 6661'. 5" Comp. Formation Density, Runs I and 3, 90' - 6661'. 2" Long Space Sonic, Run 3, 5821' - 6653'. 5" Long Space Sonic, Run 3, 5821' - 6653'. Long Space Waveforms, Run 3, 5821' - 6653'. 2" Natural Gamma Spectroscopy, Run 1, 90' - 1973'. 5" Natural Gamma Spectroscopy, Run 1, 90' - 1973'. Dual Dipmeter, Run 3, 5821' - 6658'. 1 BL 1 Sepia . Temperature Loq (1" & 2"), Run 3, O' - 6650'. 1 BL I 1 Sepia I Profile Caliper, Run 1, 90' - 2002'. 1 ia SHDT, Run 4, 5834' - 6658'. verify Note--~Ple~se and acknowledge receipt, by signing and returning the second copy of this transmittal. R. Pittman/Geologic Aide Received by Remarks ]Date [ 4-30-85 IDate ;'", .'a alii & Ga8 Cons. C0mml~loi~ Anchorage AR3B-1370-F ARGO E.~ploration Company ..~. ARCO Oil and Gas Company> Record Of Sh'. ~ent Of Confidential Information !District I I Alaska To State of Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, Ak. 99501 Attn- Mr. Bill Van Alen iF:om ARCO Alaska, Inc. Exploration Operations P.O. Box 100360 99510 700 G Street 99501 Anchorage, Ak. Attn- Mr. Sam L. Hewitt ~Enciosed '-- Under separate cover ~ wa hand carried Subject ARCO Brontosaurus No. 1 and No. lA Quantily Map number & description 1 BL 1 Sepia 1 BL 1 Sepia I BL 1 Sepia 1 BL i Sepia 1 copy 1 copy 1 copy 1 copy 1 tape Schlumberger Mud Log, Bronto No. 1, 90' - 5453', (original Mud Log format). Schlumberger Mud Log, Bronto No. lA, 3436' - 6660', (original Mud Log format). Schlumberger Physical Formation Log, 90' - 5453', (new computer format). Schlumberger Physical Formation Log, 3436' - 6660'. (new computer format). ARCO Conventional Core Description, Bronto. No. 1, Core 1, 2, and 3. ARCO Conventional Core Description, Bronto. No. lA, Core 2, 3, 4, 5, 6, 7, 8 and 19.1I' ARCO Sidewall Core Description, 5828' - 6623', dated 3-23-85 .... _ Schlumberqer Anadrill Directional Survey. Schlumberqer Open hole LIS tape #70245, Runs 1, 2, and 3, 66.5' - 6694', with listing. Not~;~2Please verify and acknowledge receipt, by signing and returning the second copy of this transmittal. S~ned by ~ ' R. Pittman/6eologic Aide Received by J Date ..... ' 4-30-85 - '- -? ~--' j Date - ~ .' "'- % Atas~ 0il & Gas Cons. C~mmi~ion -.-- Anchorage, - --' -: _-'. -- . Remarks · ARCO Oil and Gas Company Sidewall Sample Description Operator and we~l name /---'1t~C 0 ALPC, iT,L'b Z'IJC. L~i~/JT~-'t,_t/c--~/&'/~ ?]'P, /,4-, ~Page of Depth Rec. I Description I % Oil I Odor i fluor I stain I '"o~ i Intensity i Coior color sum · '~ , color ! ! i ~ I ' . , O~p 60~ ?~¢ 7 I ~ ~a~a OJl ~ 6as Cons. ~mmi~ion i Remarks ARCO ALASKA, INC. pruperietarl Re~ease to: S~te ot Aiaska :Described by * cONFI£¢E~'4TIAC * .ARCO Oil and Gas Company : Sidewall Sample Description Operator and well name Loca!ion /'o0 lA iFage of iDate i Recovered Shot t % Oil i Oil fluor Cut Cut Show Depth Rec. Description I Od or . , fluor stain % ~ Intensity i Color color color sum 2/~/ CL~¥Sror~E~ D~cTrL~ FO ~um I r ~l)¢J~ J Remarks A~ Prooerietary Re':ease to: _ O;:!'.'c - - * CONFIDEI4T[AL * :Desnribed by ARCO Oil and Gas Company Operator and well name Sidewall Sample Description iPage of Location iDate Shot !Recovered i t Oil fluor Cut Cut Show Depth Rec. Description % Oi! O d or i tluor stain % ~ Intensity !Color color sum ~ ~ color ,. I i I I ! Remarks ~1' cONFIDEN1 ARCO ALASKA, iNC. Properietary iDescribed by AR3B-2390-B 'ARCO 'Oil and Gas Company : Sidewall Sample Description Operator and well name iPage of Location Shot !Recovered Depth Rec. Description % Oil i Oil fluor Cut = Od or Cut Show staini % i Intensity. i Col0r color coiorfl"°r sum ' ! ~V..C~LC. I J I I ! I I " i c ~ t /,, I , , · , ~. CONFI~ENlJAL * iDescr;bed by · ARCO ,Oil and Gas Compsny : Operator and well name AKqO ~~o ~ ~<,A_ Ui~'".~.~_. tJu Location Sidewall Sample Description ! Page of [Date Shot i Recovered I ' Oil fluor I Cut Cut Show Depth Rec. Description % Oil ! Odor [ Intensity j Color color fluor sum stain t % ~ color '.Z.,=c.o UE ,; d' · i , - , I If (~0~'" r~{.L~K~/)K Gl~.~¥ /H.LqqLE6 5,4PDST::,;~ T~ -T/Z J ~ I V'~G¢. LL/iUC. ¢,C,4i( ~,.~F7 Q?',-..--,--- ! · .,.~ ~, ~ ~ , J i ., , , I I ' i j " J ,ARCO.Oil and Gas Company .'. - Sidewall Sample Description Operator and well name ~"" """~'" iPage of ~ I /~/~(o I~l'~;,J-3~'.~Aut'~,'J5 r,~o lA ~ / I ~. Location Shot 1Rec°vered Date Depth Rec. Description % Oil Odor fluor sum , ~ i color stain I % i Intensi~ i Color color I ! i . I . ,,, . __ I , ~ ' ; i J i ,v ,} NELL ~ ~ J i , . ~7,Cp '¢. tALC RemarKs IDENTIAL AR~0 ALA:'",,,,~, Described by AR3B-2390-B STATE OF ALASKA , ALASKA ~ AND GAS CONSERVATIONC~MISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL [] GAS [] SUSPENDED [] ABANDONED E~ sERvIcE [] ' ' .~/ 2. Name of Operator 7. Permit Number ARCO Alaska Inc. 84-1 3. Address 8. APl Number P.O. Box 100360 Anchorage, AK. 99510 50- ~ /(~"~-~ 4. Location of well at surface 1040' FSL 1037 ' FWL 9. Unit or Lease Name Sec. 18, T18N, R20W, U.M. '~LCCA~:~..~:~ ~ ~' , 10. Well Number . ~ ~ ~ Brontosaurus ~1 Sulh._~ ] 11. Field and Pool At Total Depth 932.19' ~S%, Z1~1.50' 5. Elevation in feet (indicate KB, DF, etc.) ] 6. Lease Designation and Serial No. 12. Date Spudded 13. DateT.D. Reached 14. Date Comp.,Susp. orAband. ] 15. Water Depth, if offshore ]16. No. of Completions 1-24-85 3-22-85 3-2?-85] ~o~e feet MSL~ ~o~e 17. Total Depth (MD+TVD)6660. MD 18.Plug Sack Depth (M~D)] 19. Directional SurveY45 ' MD YES ~ NO ~ }20' Depth where SSSV setNOne feet MD I21' Thickness °f Permafr°st850 ' 22. Type Electric or Other Logs Run DIL/SFL/GR/BHC, LDT/CNL/NGT/~S, LSS/D~, SHDT/Temp, SHDT/GR/~S, DIL/GR/BHC, DIL/SP/BHT/GR, LDT/CNL/GR, VSP 23. CASING, LINER AND CEMENTING RECORD SETTING.DEPTH MD CASING SIZE WT. PER FT, GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD ;AMOUNT PULLED 20" 91.5~/ft B Surface 93' 26" 200 sx coldset 6' 13-3/8" 72~/ft S-95 Surface 2015' 17.5" 1350 sx coldset 6' 9-5/8" 53.5~/ft S00-95 Surface 5813' 12..25" 650 sx class G w/additives 16' 24. Perforations open to Production (MD+TVD of Top and Bottom and- 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) ~O~ 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DERTH INTERVAL (MD) AMOUNT& KINDOF MATERIAL USED ~o~ 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, ga~ lift, etc.) ~o~ RO~ DateofTest Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS-OILRATIO . TEST PERIOD ~ Flow.Tubing Casing Pressure CALCULATED ~ OI.L-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. ---- 24.HOUR RATE~. .. 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. . Form 10-407 s~jb~:i~' in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE · 29. 30. ' GEOLOGIC MARKERS FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Torok 1950 NONE Pebble Shale 3930 Same Peb. Sh. Sand 4370 4348 Kingak 4420 4398 Sag River 5950 5927 Shublik 6035 6012 Sadlerochit Gr. 6450 6426 Basement 6535 6510 31. LIST OF ATTACHMENTS Core Date 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~/~~~/~~A~ 'f '~ Drilling Superintendent ~/..~ z/_ C~ .~ INSTRUCTIONS General' This form is designed for submitting a complete and correct well completion repOrt and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells' Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5' Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27' Method of Operation' Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". /~I1UU/,~lasKa~ IrlC. Well:,. Interval Cored: Recovery'. GENERALIZED CORE DESCRIPTION: ~ONVENTIOt Core No: '. CORE DESCRIPTION FORM- Page ~ of ~ T,D, Formation: ~o-?; % ~, il Core Diameter '7 Inches GRAPHIC LITHOLOGY SCALE lin. = I ft. f · DETAILED CORE DESCRIPTION . Prepared by ~. O-'~-w,..~.., ~,, . COHF~OENTIAL · RECEIVED A.uhorage Date: ~ . -- Interval Cored: Recovery:. GENERALIZED CORE DESCRIPTION: ~ONVENTIC ~L CORE DESCRIPTION FORM- I Page ~ of ~ Core No: -- T.D. Formation:. -F-~ c ~,~-~ Core Diameter ' Incl~s GRAPHIC LITHOLOGY SCALE lin. = I ft. DETAILED CORE DESCRIPTION Prepared by ARCO~ Alaska, Inc. Well Core No. Conventional Core Description ,ntervatcoreo q&?~//t ,..-- ,~l/q/~..(~-/ Recovery Generahzed core 0escrlphon jCore diameter inches Detailed core description prepared by: Graphic Ltthology Scale . I In. = ._q.o ft. i~OTE. ; Detailed Core Description LI?f'tOZOC-¥ 13PxSEL) 0t0 ! z-t 3 ? z-/ ?I~CE.S OF- FLuo,~,$ce~JC./E ~ C-~T Coz.o/z. · 130NFIDENTIAL * ARCO ALASKA, INC. :'- pon,,rip~f~r~/ , -. . Stute uf ~ .- . F1551 cE/e[t~T'/..fl) OO£I~P, TE.Z.'{ C/t{._C~,It£OU 2 ,~ /'fl(d-tL¥ FL~tCI~£_,~/JcE ) /'Jo OE, vtc~.Y CUT COLo.W-. ARCO Alaska, Inc. ,~, ~ Conventional Core Description ~Gore N~ Inlerval corec, Recovery inches Generalized core clescnphon oil s,.o I Detailed core description prepared by: Graphic Lithology Scale 1 In.:~ It. Porosity i ', 'i C~ I~.~ ; Detailed Core Description ARCO Alaska, Inc, ,~C°nventional Core Description Wei', i Core. No iPage] ,of I.nlerva ! core~ / / J Forma. hon ,~?0/- i Core d~amete~' inches General,zed core Oescr,pl,or, /~,,~ 0 ~ C0UE/~' Y Deta~lecl core descriptIon prepareO by: C Oil how Graphic Lithology Scale lin.=~ J% J Po~ros.ity I ft. c~ ~!/x Detailed Core Description ( )l/t-l(' ~"~.~.~! V~.D ,v~r 0 1 ]985 '~¢.~. Oii& Gas ~ns. ~~,.. Anchorage ......... " ,.--Conventional Core Description ARCO Alaska, Inc. Welt Core No. .Date in~ervai Corec : Forma;~on Page ! of Recovery Core oiame:er Generahzec co'e cescn.o:~2n Deta,lec core description prepared S,y: Oil Show Graphic Lithoiogy Scale I In. = ~ ft. Porosity Detailed Core Description * CONFIDENTIAL * ARCO ALASKA, INC. Properietary Re',,sa-so to: ,~, _ ~__ _~ A I,~1~ .~LU UI ~o~ * cO~FiDE~,~T~AL * ._. - ' ¢) i ' ,i OEGA/.JIc Ft':,AGr,-',.P_,'.;T£~ 6d¢~3'----JS ('h;ar:.;z"-_ F',LLFO ~/S;_T'-/...<_,/~L.~. . ~ I ~ 'TS'F i i ARCO Alaska, Inc. SUDS~Oi~r? 01 A!lanbcq,c".' ~ ._.2onventional Core Description ARCo Core 3 Page ~ of Date Interval corec qecoverF : Forrn&uon SA ¢- / O 0 ~/c, = ,.3 0 x :.Core o:ameter /_7l j/ Generahzec core Oescr:pl~o~ Delaiied core descriptiov p;epa,'ec PoS'SlUF~p.O,S (._%/-9 gAa) ARCO ALASKA, INC. Properietary to: Oil Show Graphic Lilhology Scale I In. : ¢~ ft. -5'978' Porosity~ A) O TE. ~ Vu; E: U.. S i TP_ Detailed Core Description State of Alaska * CONFiDENTiAL * TP. Or_6. ob: c=-ow.~ om rrE . ARCO Alaska, Inc. .&~b.~,~,P'~ 0! ~l,~r.l'C~'.~-~,e ,._/Conventional COre Description W'el! !Co,e No ] Page o Inlerva! COreC ~. / '. Fo:-mabor-: Recovery 10 ~ 'Y~. !Core o~ame',e, V II -1' .,.. i inches Deta~leo core clescnpt~on prepared by: Oil Show IO,'F.: o Graphic Lithology Scale I In. = ~ ft. ~ Porosity, '1 ARO0 ALASKA, INC. Detailed Core Description ProperJeta~. R~,~se t0: ARCO Alaska, Inc. Conventional Core Description :'TD : 4,3&o. 75- Interva~ corec ~,31o'- ~, 3Go.7 ~ [ F ormal~or: : gCuBLiF--_ Recovery inches Generalized core descr~phon Oil Show , I '1 I i Detailed core Oescn )t~on prepared by: Graphic Scale I In. = ~tt. D. A/ Z c F-// E-. 'os,ity Detailed Core Description ~tl. t c.A ARCO ALASKA, iNC. Pruperiekuy Relecse to: State of Naska * CO;~7IDEi~TIAL * I P'/RfT~ NoscF' i '~' 5 -- ~--~V--- '~ ............... '- ~ - - ARCO Alaska, Inc. v Conventional Core Description / Inierva{ cored F ormahor, Recovery inches Generahzed core Oescr,pt,on To9 - I~;v~.lv6 V,/~.,e.s-~-ov, e Detailed cord description prepared by: Oil Show Graphic Porosity Lithology I c:) o Scale ,..~,: ~ .~ ¥i,:.: ii. I~ ] ' I ~, /k{o ~ c.,4 t.. F..- ~: ' ' --63 &o. 75'-- Detailed Core Description Z * CONFIDENTIAL * ARCO A~,SKA, INC. Properieta,-y ,:~aSe to: /~/o ~c_. ~' a~_lc,'% c.~,,~tn+, k/Ao/e ,s ,',,,, / ~, ,_ ~L,,Uls; ARCO Ai~lska, Inc. Conventional Core Description Dale 1'I, .D 3- / -~- S'5" i Inti,rval cori,c; / i Forrc, aho.'-, 6, 36,0. 7~/- (_,. 5"00 ~ _%h'ur~ CZ'k Recovi,ry C.. u -/- ~Cor~ dlameJe~ ~enerahzeo core 0escrlphon Detailed core descnphon prepared by: ~. ~1'~ Oil Sho7~ Graphic Porosity Lithology ! ~39ZSo~ ,, t / .~, - ~ ~ .,~ Detailed Core Description £. ~/~_-/--/~. * CONFiDEi~,T~AL ARCO ALASKA, INC. Pr0perJetary Release to.: S[a!~ of Alaska * CONSIDE,~JTIAL * S:rL_TSTo~F_- -- Pk- C~,-~y [/'.1-3 ) Vv','sc, u L¢c--,,-c_-r-¢A2 ,~/v~-6-. ! .' ARCO Alaska, inc. Subsidiary of AtlanlicRichtieldCompany "----~' CONVENTIONA'~CORE DESCRIPTION FORM Well: ~ ,e.o r,.,z'z-o SR u~u'5 /,./o. 1,4 / Core No: Page ._L of ~ ! Date: .3 -- /~'~' ~'5' T.D. 09',5",3 / Interval Cored: G'-/O0"- Formation: S~L.x_OoLT_.y-.. (~,u.,-/q.5') $'~DL-E~OOHZT Recovery: CuT 53' ,Ks'/~-e_ 5'3' Core Diameter /7/ Inches GENERALIZED CORE DESCRIPTION: GRAPHIC -~ * CONFIDENTIAL * LITHOLOGY ~ ARSO ALASKA, INC. DETAILED CORE DESCRIPTION SCALE ~..---~. ;~o Pr0perietary Prepared by D. N ~ ~ ~. t~/~ ~o ~~ ;,X~ Release t0: State of Alaska · CONFi ...... "' * / ~,v~lv~ ~s ,. No,cF ~q/3.75' J .... / .i ARCO Alaska, Inc. Subsidiary o! AllanticRichlieldCompany CONVENTIONA~CCORE DESCRIPTION FORM Well: ~'o~'7~ F,~u~¢c].5 !Vo. /A Core No: G Page~ of 3 Date: 3- /? -- ~'S- Interval Cored: / Recovery: ~..,UT 53' ,~Ec_. 5'3 GENERALIZED CORE DESCRIPTION: T.D. &"-/S ~/ FormatiOn: Core Diameter /'/ Inches ., Z- " ~Ul~ll-ll./r-iM I I~.ib ~ GRAPHIC .- 8~o UT"OLOG¥ ¢ ~ AR00 ALAS~, IN0. ~ DETAILED CORE DESCRIPTION SCALE , Properietary Prepared by ~~~~o~'s~*~ 2~'[ Release to: S~~ * CONFI~ENTI~ * Alack ,, b ~7/ I ~lt, L - i ~--~~--~J ' c~ c~~. F~) <~ '8,b~u~ '~~~s i , I . . --. ~ · --~ n ~ [.c~c~o u ~ ...... ~tAtg~S ~c~,' . ARCO Alaska, Inc. Subsidiary of AtlanticRichlieldCompany CONVENTIONA~'L~CORE DESCRIPTION FORM Well' 13 £ o ~ -ro s~u,e cr s A/~ . /,q Core No: G / Date: 3- /~'- Es T.D. ~'-/E3 / / Interval Cored: & '-/o o - Page .~ of ~ Formation: Recovery: ..~, U'F 5'3 / ,,CF__-c., ~ / Core Diameter /"/ Inches GENERALIZED CORE DESCRIPTION' 8 =o LITHOLOGY A~Ci) ALASKA, INC. DETAILED CORE DESCRIPTION ~ SCALE ~j~l Pr0p;rietary Prepared by D, h,/,' c..e, * z~. '/4~'f-/,-be,'~ ~~.~ ~Rele~!se to: I ' '. '""'~"'" ' :' / ~ ~o~ ~uA~,sE. v~ S~TL~ 'cAcc~do~5 ~~ ~u~,~ ~ ~c¢ ~y~,~ ' ~~ ' · I I ARCO Alaska, Inc. Subsidiary of AtlanticRichfieldCompany CONVENTIONA'~CORE DESCRIPTION FORM Page / of Well: ,~D~,/'FO 5~ U~U.S /Mo. /A Core No: "~ Date: -S - / ~' - ~' 5'- T.D. ~o ,../5- Interval Cored' & ~ 5 5 / - ~ '--/,~ q ' Formation: Recovery: G UT 5; ' ,6, £ 0 5' ' Core Diameter 4' Inches GENERALIZED CORE DESCRIPTION:. C~,,,-+ ?e/oldie &o,~/'o,.~e,-,:,.~ w,/~:,+~ ~v~, G-,.',~ .~.~-~J~'~- t4,..-~.-;x (v. ,. .I GRAPHICI _~1o.~, LITHOLOGY ~1~1 CONFIDENTIAL * SCALE~ARC0 ALASKA, INC. DETAILED CORE DESCRIPTION Prepared by ~. ~'/ ~ ~~ Prope'ieta~ I II IRe!ea:;e t?: ,, I I/Istate 0f . . ARCO Alaska, Inc. 5Ul~l.~3~l~f OI Atlll"~l~cR~chf~ldCom~y Conventional Core Description ~'ell Date AXO X,X ? Inlerv&l cored / / i Formation Recove~ / l Oore diameter Generahze~ core Oescriphon ! Detailed core description prepared by: o, % ' CONFIDENTIAL Show Graphic Porosity 'c:lii klthologyscale j~ljl:[~,.. ' Detailed Core Description ProperietaryARCO ALASKA, iNC. g '-~ ~ ~ ~ Release to: i State of / . ' - I J / : ~.~;~ ~ q~,'. ~~/ ~ro~m~ /~ I ~ : ~s*lo o~-t, / 0% ~,-t~.~;~ po~e ~,'//, tr -' ' / ' I '/ / o ~ ~ / ' ]' ' ' / ' .~0~ g,. ~ - o~ 1o~ L~ % o~- r ~ c : Fl~o? ~o s~pfe ~1~,b ~o ~+. A/o ~ ' J ~..~.:.'. ' ".' .' : ~ i , . - ' / - '' ' ' : / i · ~ ' ~':'.~'.'. '.'{:.'~:~i SANDSTONE - L¢. d-r~% (~-7); Hx~d, V,¢, ~ ~. ~m;., s~br.~, I ' ~ gUTo.~o~ j i I / ~ j ' I ii ARCO 'Alaska, Inc. ~.Ubl.<l~tr~ O! AtllnhCR~ct~he~lCoftiDlny Conventional Core Description Well Date i T.D. / Interval cored [Formation /' /' Recovery I Core a,ameter -- i ~ inches GenerahzeO core 0escnphon Detailed core 0escription prepared by: !, ' '~. NLT_ C_. E_ / ,.._.."'" /'~/rT/.-~-/:~---.(:'(-r Oil % I * CONFIDENTIAL Show Graphic Porosity I * Llthology Detailed Core Description Scale o o Properietary i ... · ....Ii , - ~ , j J ~ b~W~ ~u~A~~ ~0 ~W~0u~/ ' J / ' I i Cq?~.7r/ ,. I I i ~,p up ~ , i ~ I i · i ~ I ii i [ , . . , i i I , r . , : , ~ , , . __ /jif ARCO' Alaska, Inc. Conventional Core Description Inlerva~ coreo Formal,on Recovery. ,Core Generahzec core Oescrlpl~on Detailed core description prepared by: ~. ~/ZcF- / F_. /-/,4'rL.-~,~¢,~* CONFIDENTIIAL * / o. °,', I ~,~-.,u AI~,SF(A, INC. Show , Graphic Porosity.] Properieta,3/. ii Lilhologyscale ~n o i! o *' Detailed Core Description ~ C5o&.5o__ I , ~...-.'.':...' ....~ m s/.~ ~!~ /~f/o~ c~ ~ FI~., ~ / , i I - - f . . ARCO Al~;ska, Inc. '~' Conventional Core Description Z~,eo,-v'-r-o s,~u4' d $ ,A,/o. Z- 2--;z- Core No !Page lot ? j / i/ 'ID Inlerval corec Formation Recovery ~Core / Detailed core description prepared by: Oil .Show I Graphic Lithology Scale DSo ~ q,--~: Poir .os,try · I f I [ · , .._.___.. -----*--- : -~. /¥/~:c E / ~. "COI~,~DE.~TIAL * A:~L30 A~SKA, INC. Detailed Core Description -i ? ~ o ,~ we f! - £v~ff./ _</,'/,'ceo,.,-,, . ,4~, rLC~T~ - ~,,.,-£ G,.-~y (~J-3 } ,,% ~//c E/J-/') ~,Y/4 t/e..v /__~-, Brontosaurus #1 Drilling Hi story CONFiDENTiaL Spudded well @ 2400 hrs, 01/23/85. Drilled 17-1/2" to 2000' Ran DIL/SFL/GR/BHC & LDT/CNL/NGT/AMS f/2OOO'-surface. Continued d~illing 17-1/2" hole to 2030'; ran & cemented 13-3/8" casing w/shoe @ 2014'. Tested casing to 1550 psi; 50 psi drop in 30 minutes. Drilled hard cement to 2014'; tested casing to 1500 psi-okay. Drilled 12-1/4" hole to 2049'; performed leakoff test (tested to 16.1 ppg EMW). Continued drilling 12-1/4" hole to 3462'. Cut core f/3462'-3478'. Continued drilling 12-1/4" hole to 4394' Cored f/4394'-4414'; cut 20'. Drilled to 5146'; cored f/514~'-5150'. Reamed to 5150' Drilled f/5150'-5457'; stuck pipe and recovered. Ran DIL/SFL/GR/BHC f/~446'-2014'. Tested BOPE to 5000 psi-okay. Ran gyroscopic survey. PU cement diverter and RIH to 4400' RU and cement in preparation for sidetrack. RIH and tag cement @ 3423;. Sidetrack & drilled to 5898'. Ran DIL/GR/BHC; hit bridge @ 3566' and POH w/tool. Reamed to 5898'. Ran 9-5/8" casing and cemented (shoe @ 5813'). Tested casing to 3000 psi-okay. Drilled to 5901' Cored from 5901'-5913' Drilled to 5948'; cored f/5948'-5978' 'Drilled to 6320'; core~ f/6320'-6513'. Drilled to 6640' Cored f}6320'-6513'. Drilled to 6640'. Cored f/6640'-6660'. Ran ~IL/SP/BHT/GR f/6657'-5813'; LDT/CNL/GR f/6661'-3500'; LSS/DWF f/6653'-5813'; and SHDT/Temp. Ran VSP. Set EZSV @ 5728'; pumped 50 sx Class G cement (Est. TOC @ 5583'). Tested casing to 2000 psi-okay. Spotted 29 bbls CaCl~ HeO f/1000'-600'. Mixed and pumped 95 sx Class G; TOC @ 45'. Cut9-5/~' ~nd 13-3/8" casing. Fill w/cement. Secured well and released rig @ 1100 hrs, 03/27/85. GRU1/66 3462-3475 Core No. 1 4394-4414 Core No. 2 5901-5906 Core No. iA 5906-5909 Core No. 2A 5948-5978 Core No. 3A 6320-6360 Core No. 4A 6360-6400 Core No. 5A 6400-6453 Core No. 6A 6453-6457 Core No. 7A Sandstone & Siltstone, Poor-Fair Porosity , Shallow Dip, Water Sandstone, Poor-Fair Porosity, No Dip, Water No Recovery Sandstone, Siltstone, Shale, Poor-Fair Porosity, No Dip, Water Sandstone, Siltstone, Poor-Fair Porosity, No Dip, Water Siltstone, Sandstone, Limestone, Poor-Fair Porosity, No Dip, Water Siltstone, Limestone, Sandstone, Conglomerate, Poor Porosity, No Dip, Water Siltstone, Limestone, Sandstone, Conglomerate, Poor Porosity, No Dip, Water Conglomerate 6457-6513 Core No. 8A Conglomerate, Sandstone, Siltstone, No Dip, Some Fractures Core No. 9A Siltstone, Shale, Silty Sandstone, No Dip, Some Fractures RECEIVED Alaska Oil & (~a~s Cons. OoffirnZss/on , mc. DIRECTIONAL SURVE¥~o'' ~"-'~ Properietary R~,,~ase to: State of Alaska DATE TIME DEPTH, FT 2/21/85 **N/A 00(1 000.0[ 0.00 0.00 Eastman Gyroscopic 2/21/85 **N/A I 100 100.0[ 0.00 0.00 Eastman ~Gyr°sc°pic 2/21/85i**N/A I 200 200.0[ 0.00 I 0'00 Eastman iGyroScopic 2/21/851 **N/AI 300 300.0[ 0.25 241.50 Eastman Gyroscopic 2/21/85 **N/A I 400 400.0i 0.25 326.50 Eastman Gyroscopic / 2/21/85 **N/A 500 499.9 1.50 15.50 ;:Eastman,~ Gyroscopic 2/218/5 **N/A 600 599.9~ 2.50 38.50 Eastman IGyroscopic 2/21/85 **N/A 700 699.76 4.00 58.50 Eastman Gyroscopic 2/2i/85 **N/A 800 799.41 5.50 79.00 Eastman Gyroscopic 2/21/85 **N/A 900 898.84 6.75 89.00 Eastman Gyroscopic 2/21/85 **N/A 1000 997.95 8.50 102.00 Eastman Gyroscopic 2/21/85! **N/A 1100 1096.75 9.25 109.00 Eastman Gyroscopic 2/21/85i **N/A 1200 1195.4~ 9.25 117.00 Eastman Gyroscopic " 2/21/85 **N/A 1300 1294.1~ 9.25 127.00 i Eastman Gyroscopic 2/21/851 **N/A 1400 1392.92 8.75 ,134.00 Eastman iGyroscopic 2/21/85 **N/A 1500 1491.76 8.75 142.00 Eastman Gyroscopic .53 9.25 153.00 Eastman Gyroscopic 2/21/85 **N/A 1600 1590 2/21/85 **N/A 1700 1689.1~ 9.50 164.00 Eastman Gyroscopic 2/21/85! **N/A 1800 1787 7q! 9 75 1178.00 Eastman IGyroscopic 2/21/85 **N/A 1900 1886.3~ 9.50 1193.50 Eastman tGyroscopic ~2/21/85 **N/A 2000 1985. ~7.75 206.50 Eastman GyroscoPic ,, 2/21/85 **N/A 2100 2084 7 50 212.50 Eastman Gyroscopic 2/21/85 **N/A 2200 2183.56i 7. O0 213.50 Eastman Gyroscopic 2/21/85 **N/A 2300 2282.861 6.50 213.50 Eastman Gyroscopic 2/21/85 **N/A 2400 2382.27 6.00 215.50 Eastman !Gyroscopic -I I ' ,ECEIVED ANADRILL Naska 0ii & Gas Cons. Commission Anchorage . DIRECTIONAL SURVEY~-cContinued) ',.._~ ~?~penetary R~::iease to: State of Alaska DATE TIME DEPTH, FT DRIFT AZIMUTH SURVEY ~O,~ I~,S~~. TAKEN MEASURED TVD COMPANY TYPE 2/21/85 **N/A 2500 - 2481.74 5.75 215.50 Eastman Gyroscopic 2/21/85 **N/A 2600 2581.26 5,50 217.50 Eastman - Gyroscopic 2/21/85 **N/A 2700 2680.84 5.00 219.50 Eastman Gyroscopic 2/21/85 **N/A 2800 2780.48 4.75 223.50 Eastman Gyroscopic 2/21/85 **N/A 2900 2880.17 4.25 225.50 Eastman Gyroscopic 2/21/85 **N/A 3000 2979.94 3.50 227.00 Eastman Gyroscopic 2/21/85 **N/A 3100 3079.76 3.50 227.00 Eastman Gyroscopic 2/21/85 **N/A 3200 3179.57 3.50 229.00 Eastman Gyroscopic 2/21/85 **N/A 3300 3279.38 3.50 230.00 Eastman Gyroscopic 2/21/85 **N/A 3400 3379.22 3.00 228,00 Eastman Gyroscopic 2/21/85 **N/A 3500 3479.80 3.00 230.00 Eastman Gyroscopic 2/21/85 **N/A 3600 3578.95 3.00 233.00 Eastman Gyroscopic 2/21/85 **N/A 3700 3678.80 3.25 230.00 Eastman Gyroscopic 2/21/85 **N/A 3800 3778.66 2.75 231.00 Eastman !Gyroscopic 2/21/85 **N/A 3900 3878.55 2.75 231.00 Eastman IGyroscopic 2/21/85 **N/A 4000 3978.43 2.75 232.00 Eastman Gyroscopic 2/21/85 **N/A 4100 4078.32 2.75 234.00 Eastman Gyroscopic 2/21/85 **N/A 4200 4178.20 2.75 235.00 Eastman Gyroscopic 2/21/85 **N/A 4300 4278.10 2.25 239.00 Eastman Gyroscopic 2/21/85 **N/A 4400 4378.04 2.00 246.00 Eastman Gyroscopic SIDETRA:K #1 2/21/85' **N/A 3400 3379.31 3.00 228.00 Christensen MWD* 2/21/85 **N/A 3490 3469.39 2.80 203.00 Christensen MWD* 2/21/85 **N/A 3522 3507.56 2.80 210.50 Christensen MWD* 2/21/85 **N/A 3641 3620.49 0.80 218.00 Christensen MWD* 2/21/85 **N/A 3673 3652.49 1.00 333.00 Christensen MWD* 2/21/85 **N/A 3702 3681.48 1.80 339.00 Christensen MWD* 2/21/85 **N/A 3807 3786.42 2.10 337.00 Christensen' MWD* 2/21/85 **N/A 3932 3911.34 2.00 332.00 Christensen MWD* ANADRILL _1 7. DIRECTIONAL SURVEY...-tContinued) '"-~ DATE TIME DEPTH, FT DRIFT AZIMUTH SURVEY SURVEY TAKEN MEASURED TVD 'COMPANY TYPE 2/21/85 **N/A 4189 . 4168.19 1.90 333.00 Christensen MWD* __ 2/27/85 **N/A 4461 4440.05 1.70 035. O0 Chri stensen MWD* 2/28/85 **N/A 4739 4717.92 1.90 039.00 Christensen MWD* 3/1/85 **N/A 5022 5000.77 1.80 040.00 Christensen MWD* 3/2/85 **N/A 5243 5221.65 1.90 043.00 Christensen MWD* 3/13/85 **N/A 5958 5936.29 1.75 018.00 Eastman MSS 3/13/85 **N/A 5978 5936.28 2.00 016.50 Eastman MSS 3/17/85 **N/A 6370 6347.56 4.75 048.00 Eastman MSS 3/17/85 **N/A 6400 6377.46 4.75 048.00 Eastman MSS 3/18/85 **N/A 6430 6407.36 4.75 047.50 Eastman MSS 3/18/85 **N/A 6457 6434.26 4.75 050.00 Eastman MSS 3/19.85 **N/A 6487 6464.17 4.50 051.50 Eastman MSS 3/19/85 **N/A 6513 6490.09 4.50 050.50 Eastman MSS * CONFiDENTiAL, * ~ "~"'"" ALASKA "'~ , IN~' **Inforr~ation n)t available ~"":";~'~ tn' *Chris':ensen d )wnhole tool MMS Mul :ishot S ~rvey " ~19'~'~:/~'~%~T~L * , ,, , ANADRILL TI~ ANALYSTS Sch ~umbe rge r MWD DIRECTIONAL SERVICES ARCO Ala#ka Inc. ~ NPRA SECI8 T18N R2OP/ 1037'FLS 1090 'FWL HORIZONTAL PLOT . 300 2O0 -I O0 -200 --300 -3O0 ~' [;UNPIUI=r~ I IA.- - ARCO ALASKA, INC. Properietary Release to: State of Alaska * r-nMl=inl=MTl&! # $ -,zoo -lOO ~/-W) loo 2oo 3oo DEPARTURE ( (FEET) PLATFORM REFER£NC[ POZHT (PRP) : HORZZONTAL PLOT START TVO : HORZZONTAL PLOT END TVD : 0.0 e700. O ABSOLUTE LOCATZON : NPRA SE¢18 T18N R20W SIJRVEYS CALCULATED USTNg : RADZU$ OF CURVATURE MAGNETZC DECLZNATZON : 25.30 08-JAN-.85 IlILq. L ZDEN'FZIrZCATX C~I TYPE: I~LL NAME $ Brontolauru/ {1 $ Bront. o,auru,fl A WELL INFORMATION TZE-ZN-POZNT/KOP LA'[ (S/-S) OEP (£/-W~ TVD O. O0 O. O0 O. O0 -203.57 32.67 3379.71 LA.eT STATZON LAT(N/-S) O£P(£/-lllO TVO -230.53 -3.98 4378.04 Schlumberger MWD DIRECTIONAL SERVICES ARCO Al o3k= .THCS.'---'~ NPRA SEC18 T18N R20W 1057'FL$ lO$O'Ftff.. CONFIDENTIAL ' ARCO ALASKA, INC. Properietary Release to: 2000 8000 10000 120OO State of Alaska ddNl::lFtl=NTi Al VERTZCAL SECT;ION- AZIMUTH = O. 0 DE(~REES SECT];ON (FEET) -4000 -4000 -2000 0 2000 4000 8000 0 PLATFORM REFERENCE POZNT (PRP) : VERTTCAJ. PLOT START T~ : VERTTCAt. PLOT £1',10 TVD : 0.0 ~700.0 ABSOLUTE LOCATZON : NF'RA $EC18 T18N R20W SURVEYS CALCULATED U:~TNG : RADZU$ OF CURVATURE MAGNETIC DECI. ZNAT/ON : 25.30 IIELL ZDEh'TZFZCATZaN f TYPr WELL I $ eronto,ouru, 2 $ Bronto~euru,fl VtF_LL INFORMATTON LAT (./-$) DEP (E/W) TVO. O. O0 _ O. O0 O. O0 --203.57 32.87 3379.71 LAST ~rATZC~I LAT (N/-S) DEP (£/-'k') TVD -230.53 -3.98 4378.04 --121.44 88.27 8490.09 . THE ANALYSTS Schlumberger MWD DIRECTIONAL SERVICES ARCO NPRA $£C18 T18N R2OV/ 1057'FL$ 10~0 'EH(. CONFIDENTIAL ® ARCO ALASKA, INC. Properietary Re!ease to: S,~°+~ of Alaska VERTICAL SECTION. 2000 4OOO ,. 6000 8000 10000 1200O -~000 -4O00 0 . -2OOO AZIMUTH = 90.0 SECTION (FEET) 0 2000 10~0 ~ , , ! I ! I r I I I I ! * CONFIDENTIAL * DEGREES 4O0O 6000 i PLATFORM REFERENCE PO/HT (PRP) : VERTZCAL PLOT START TVD : VERTICAL PLOT END TVD : 0.0 8700.0 ABSOLUTE LOCATZON : NPRA 5EC18 T16N R20W SURVEYS CALCULATED U$ZNG : RADZUS OF CURVATURE UAG'NETZC D/CLZNATZON : 25.30 WELL INFORMATION I"ZZ--2N-POZNI'/KOP LAT (N/-$) PEP (r/W) TVD O. O0 O. O0 O. O0 -203.57 32.67 3379.71 LAT(N/-$) D£P(£/-Ik~ TVD -230.53 -3.96 4378.04 -121.44 68.27 6490.09 __ MWD Schlumberger BTRECTIONAL SERVTCE$ ,ARCO ,41 oak o .Tn c ~,..~' NPRA $£C18 T18N R20W 1037'FL$ 1090 'F'IC,. * CONFIDENTIAL * ARCO ALASKA, INC. Properietary Release to: VERTTCAL ..-~000 0 104OO 120O0 SECTION,. AZIMUTH = 180.0 DE(~R~-~~'{FIDENTIAL * SECT~ION (FEET) -4000 ..-2000 0 2000 4000 t , · PLATFORM REFERENCE PO/H'T (PRP) : VERTZCAL PLOT ~'TART TVD : VERTZCAL PLOT El, ID TVD : 0.0 ~700.0 i. ABSOL. UTE LOCA'TZON : NPRA 5'ECt8 T18N R20W 5'IJRVEY~ CA/,.CULATED USZHO : RADXU$ OF CURVATURE MA~HETZC DECLZHATZON : 25.30 ~ELL ZDENI'ZFZCATZCI~ ,il .TYPE tELL NAME 1 S Brontol.uru, ~1 2 S Bronto~ouru~flA ~ELL TNFORUAT~ION 'rzz-~~~ LAT (N/-$) OEP (Z/-W) TVD o. oo o. oo o. oo lAST STAT/ON LAT (H/-$) D£P (E/'-~ TVD -2:30.53 -:3.9. 4378.04 --121.44. 88.27 649'0. Oe MWD Schlumberger D:[RECT]:ON^L SERVICES NPRA S£C18 T18N R20W 1037'F'LS 1090 ~FY4. VERTTCAL -400O 0 2000 IOOO 10000 12000 SECTION AZIMUTH = 270.0 DEGREES SECTION (FEET) -4000 -'ZOO0 0 2000 4000 ~000 ,J PLATFORM REFERENCE POXNT (PRP) : VERTXCAL PLOT START TVD : VERTICAL PLOT END TVD : 0.0 $700,0 AaSOLUTE LOCATZON : NPRA SEC18 T18N R20W 5'URVEY~ C~I. CULATED USZNG : RADZU$ OF CURVATURE UAb"HETZC DECLZNATZON : 25.30 08-JAN-.85 i- V~LL INFORMATION TZE--ZN-POZHT/KOP L AT (1',1/-$) D£P (E/-*W) TVD o. oo o. oo o. oo -203.57 32.67 3379.71 ~ STATZC~I LAT(N/-S) DEP(£/-W) TVD -230.53 -3.96 4378.04 -121.44 68.27 6490.09 ~R,-_:C, E:X'~'-.'> ORA'F ! 0'N COMPANY IRL-:N:.,:K~i',IAIRII'.:- NO: ! GMS/IqF: Mu~,-I/I"iMS i;EC. :18, TlSlx!, R20W, LIM, NPRA (WILDCAT) ( r": FiM F' OS I T E ) COMF'UTAT I ON AF'R 2 5 1985 TIME DATE 1'-." :.. 1°:.. 04 15-AF'R-E~-:._ '" "~.~ Commission ;~,t:;:, :!: :t '5. ',:':;3 PAGE NO. I TRUE 1EA'.3LIRED DRIF'r nRIFT C:OI_IRSE VERTICAL VFRTICAL '.2;LIB'.E;EA R E C T A"N G U L A R C: L O S U R E DOGLE DEPTH ANGLE DIRECTIF~I,,I LENGTH DEF'TH F;ECTION TVD F: O O R D I N A T E :2; DISTANCE DIREC:TION SEVERI FEET D I'1 D 1'1 FEET FEET FEET FEET FEET FEET D M BG/1 O0 c). 0 0 c) 0 c). 0.00 0.0 c) - 6 ?. 00 0.00 c). 00 0.00 c) c) 0.00 100. 0 0 0 0 100. 100.00 0.00 :'-': 1. C) O 0.00 0.00 0.00 0 0 0. O0 200. 0 0 0 0 100. 200.00 0.00 131.00 o. r)O 0. C)c) 0.00 0 0 O. O0 :300. 0 15 S /_-,1 :30 W 100. :300.0C~ 0.21 2:2:1.00 0.'21 .S 0.38 W 0.44 '.2; 61 :30 W 0.25 400. c:~ 1.5 N ::-::3 :'::cZ) W 100. 400.r)F) -0. 16 :--::31.00 C). 16 N C). 62 W c:).64 N 76 0 W 0.34 h-;(')(')_... 1 :::c). N 15 30 E 100 . 4':?'T¢... . c¢/.,.. _ -2.6F-: 4:30.96. ...'--' .6:---: N ¢)_ . ¢):=:. _ E ..'-' .6'-'o N 1 37 E 1 . J.:...'= 600. 2:3C) N :2::--: :30 E 100. 5'P9.87 -6.09 5:2:0.:37 6.0'2 N 2.77 E 6.70 N 24 37 E (' ':6 700 4. 0 N =''-' :":: 0 E 100. 6,9'-? 63 ?. 74. 63 (') 6:3 . o . .-,,= ..... - . ? 74 N .... 74 E 1:3.08 N 41 54 E 1.8~ :2:00. 5:2:0 N 7':? 0 E 100,, 79'.-?. 16 -11.57 72:0. 16 11.57 Iq 1:2:. t5 E 21.52 N 57 29 E 2.24 '!:70(:). /_-, 45 N 89 0 E 100. :--:9:--:. 4.7 -. 11.77 :s:2~7.47 11.77 N 2 .-c~. ,.-70 E :2:2.13 N 68 31 . E i. 64 10C)0. 8 :'-:0 S 7:3 0 E 100. 9'.:.)7.:37 -":::.70 ':.:~2'.8. :37 8.70 N 44.:36 E 45.20 N 78 54 E 2.45 ;100. 9 ir'z; ,.2; 71 0 E 100. 10'F¢6.07 -3.46 1027.07 :_'-:.46 N 59.5/:, E 59.66 N 86 40 E 1.31 1200. 9 1~ S 6:3 c') E 10c:) 11'24 77 :2:::::3 11'-' '= 77 'R ,:,.:, S - ,...._, o.-, 73 :::::R E 7:2:'.'78 ':-'87 · .. . m, m ,! ' '-- · . -- -- · .-' ,,,,,m. · 1 :'::(')(') ':'.? 15 '~' ='-' ..... 6:7. . . .......... ,.::, () E 1. 00. 129 '::. 4-7 13..=;', 1 1224.4'7 1 :_--',. :51 S 84,. 71 E 76 S 81 ':Y E 1 61 14 (')0 ':' '-"-' ':' - ':? 7 ¢' ,:, 4.5 S 46 0 E 10('1 1:':-:'~2 :::1 2:4 07 1.:,.,',_, 31 24 c)7 S 6A E 100 ._,,~ 7A ? E 1 20 . a m # mm m mm m - . :L s_ c'). c')..::: 45 S .3:2: 0 E 1 C)(:) . 1. 491 . 14 .:,'"/-_, . c'). 6 1 422 . 1 4 2:_ 6 · 06 ._,':' 107 .02 E 160 (). 9. 1..., '= :2; :27 c]) E 10 C). 1._,,:, =' -' c¢.~ . ,:,'-' 4.._.=, c.).' :38 1 .:,' ..... ~' c'.) . 84 .=;.. (-).. ..,.:., c,,_, :2; 114 . :":: 2 E 17 (:)0. '.:.) :'::0 '.E; 1.6 0 E 100. 168:2:. 4'7 6/.':,. 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"-"--'. 176.02 S 25 59 E 180.50 S 2:2, 15 E 184.6,5 S 20 51 E 188.3'2 S 18:35 E 1'.-71.80 '._--; 16 36 E 0.2~ O. 32.. 0.5:'- O. 4:: 0.51 Eastman , RCO EXF.~:J]RAT Z r)N COMPANY RO~-~'Cr.E;UA~RUE; NO: I OldS/NC Mwd/MMS Ec.,_I:::, TlSbl, R20W, L.IM, NPRA (WTLDC:A'I") ( ¢:C~MF'O'.--.~ I ]'E ) COMPUTAT I ON T i ME DATE 12: 12:04 15-AF'R-85 PAGE NO. 2 TRUE IEA:--;UREI3 DRIFT I3RIFT COURSE VERTICAL VERTIE:AL SUBSEA R E C: T A N G U L A R C L 0 S U R E DOGLE DEPTI4 ANGLE DIRECTION LENGTI4 DEPTH :-];ECTION TVD C 0 0 R D I N A T E S DISTANCE DIRECTION 'SEVERI FEET D M D M FEET FEET FEET FEET FEET FEET D M DG/100 :300('), :3:30 S 4'7 0 W 100. ,-'-"~9.. ,. . :--:01 :--:7 .9:=:. _ ..--.,c,.. 10.80 1 ',.i:7. ':*'='.. ,_, '-'._~ 5c~.. 31 E 194 .5'.-) S 14 5.9 E 0 .76 :3100. 3:30 S 47 0 W 1 (]~0. :2:077. /_-,2 1 '~ 2. 14 3010.62 1 .~2. 14 '.=; 45.84 E 1 '.-}7.5:2: S 13 25 E 0.00 :320C~. 3:30 S 4'.-T~ 0 W 100. :2:17~.4:3 176. 15 :3110.4:3 1'F..'6. 15 S 41.24 E 200.4:3 S 11 52 E O. 12 :'3:3C~0. 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JTAT I ON T I ME DATE 1. ~.: 1 -. © ' 04. 15-APR-:35 PAGE NO. .3 TRi_iE IEA:=_:URE£1 DRIFT DRIFT r-:OLIR:E;E VERTICAL VERTICAL SUBSEA R E C: T A N G Li L A R C L 0 S U R E DOGLE DEPTH ANGLE DIRECTION LENGTH DEPTH :::ECTION TVD C 0 0 R D I N A T E S DISTANCE DIRECTION SEVERI' FEET 1] M D M FEET FEET FEET FEET FEET FEET D M DG/100 .... ,:.,,~ R E 0 41 .... ~ ,~ -- · -_--'~ . -_--. _ -- --- · /..-,,:,n 4 4.5 N 4.7:30 E l(>. /-,:R.~/-, 27 122 /,9 /'-'"" .... : ........ '-, ..' ,'", 7 27 122.6';'-' ',:: 6. fl' ';' E 14'? 2 _ . ._,6'-,, 2:-:: 122, 15=: ..... 2:.2: 122 · 13 ':-'._, _ · - · --' 65=:'.:.~r). 4, 45 N 47 :%) E 1¢). /:,'~, / /.?97 :::6 7¢) E 149 77 ':' .:,5 2'." E 0.00 6400. 4 4.5 N 4:3 (:) E lO. 6:376.20 1'7'1.57 6:307.20 121.5'7 '.3 :::7·31 E 149.6:3 S '~.~ 41 E 0.41 . :,44.,. 118 . .. 91.63 E 149.46 ._ 5=:7 49 E 0 37 64/:, 7 4 45 N 51 (2) E 67 · / "" 97 . (')8 65=:7 :::. 97 ' 118 (') 8 .'E_-; ¢; . - - 4 .~*, :2:8 '-' 50 6477. 4 30 N ._, -'= 1 0 E l (:) . /,_ _4._F,'-.'-. · ':'¢.. 4 117 . k'l_ 9. /-_,.":'..,,._,o._,':', 94 I 17 ,59. S '.-"..' ,24 E 1 "' 45 S 7 E - · .... 6.:, .~ .:,. 'P 1 I 17. 10 ':' - S 38 '- 6487. 4 :--:0 N 51 30 E 10 6462 'Pl 117 10 '"'::¢'-' . .., '.~2.85 E 149.44 2-'=, E 0-39 _ . . ""r . 6403 . 93 . ~ 0 /-,4'P7 4 .:..> N 51:2:0 E 1~'). 64.72 87 116.61 .87 116 61 S .46 E 149.44 S 3R 43 E -- -- - · - ._-~ ~ - · ~.=' . · 65('~ 7. 4 20 N F, 2 0 E 1 (] 64::: 2.84 116.1 :':: 6415=:. 84 I 1/-,. 15=: '-' .? 4 (]:'--: E 14'P 46 ':' 39 I E o .249 /:,513. 4 :?~:) N 50 2(]) E 6. 64:_.::3.83 115.8::: 64J. 9.:33 115.83 S ?.)4.45 E 149.45 S 39 12 E 1.5) 6 66:50. 5 0 N 51:2:0 E 12:7. 6625.5=:0 108.40 6556.5=:0 108.40 S 103.79 E 150.07 S 43 45 E 0.37 6660. 5 15 N 50:30 E 104.50 E 150. 14 S 44 6 E 2.65 F' I N AL CL FI::2;U R E --. D I R E C T I i-IN: D I STANCE: ,., .=,F _..=, E ':' 44 ]FIE G'.:; 6 M I N S 17 '"' '¢"-' 15('). 14. F:'EET / Whip.oddlY) Suggested form to be in~erted in each "Active" well folder to check for timely compliance with our regulations. bP]~RATOR, ~LL-NAME ~kND NUMBER Date Required Date' Received Remarks Completion Report .~' - ~'~ 7 ....... ~ - Co~e Description Registered Survey Plat Inclination Directional Survey Drill Stem Test Reports Production Test Reports Log Run Digitized Data . . . . ARCO Alaska, Inc. ARCO Explor'a,u-on -Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 ~' 4 :i.- :, :: ~n~oEma~on basks~ as per s~ampea. For ~eporks, SunarZ No~kces, ~on~h~ samples. April 24, 1985 A.O.G.C.C. 3001 Porcupine Dr. Anchorage, AK. 99501 Attn: Betty Jane Ehrlich Dear Betty Jane: This letter is a request to keep all concerning Brontosaurus #1 on a confidential your regulations, whether or not it was so example, Well Completion Notices, Well Logs, core Thank you for your cooperation conversation of 4-22-85. If I can contact me at 263-4502. concerning our phone be of service please Sincerely, Darrell R. Humphrey Engineering Aide DRH/mal L01 4-24-85 RECEIVED APR 2 6 1985 ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany ~ STATE OF ALASKA ALASKA ~ AND GAS CONSERVATION COi~,~ISSION MONTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS ' 1. Drilling well ~ Workover operation [] 2. Name of operator 7. Permit No. ARCO Alaska Inc. AA-05Z211 (84-1) 3. Address P.O. Box 100360 4. Location of Well atsurface 1040' FSL, 1037' FWL Sec. 18, T18N, R20W, U.M. 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. RKB 69' Ground Level 45' N/A 8. APl Number 50-- N/A 9. Unit or Lease Name NPRA 10. Well No. Brontosaurus #1 11. Field and Pool Wildcat For the Month of March ,19 85 12.Depthatend~fm~nth~f~~tagedri~~ed~fishingj~bs~directi~na~dri~~ingpr~b~ems~spuddate~remarks Spud date: 1-24-85. Depth at end of month: 6660' RKB, footage drilled 2000'. Hole tight in many places causing bridges and stuck pipe. Had to ream a lot of hole. No fishing jobs. 13. Casingorlinerrgnandquantitiesofcement, resultsofpressuretests Ran 135 jts 9-5/8", 53.5~/ft. S00-gb, BTC casing to 5813' RKB. 1st stage: Mixed and pumped 400 sx of class "G" cement with additives @ 15.8 to 16.2 ppg. Bumped plug with 1000 ps&. 2nd stage: Mixed and pumped 200 sx class "G" cement with additives @ 13.2 to 13.5 ppg, plus 50 sx at 15.6 ppg through stage cementing collar @ 4190' RKB. Pressure tested casing to 3000 psi - OK. C.I.P. @ 2150 hours 3-9-85 14. Coringresumeandbriefdescription Cored from 5906' to 5913' RKB recov6 5978' RKB recovered 30'. Cored from 6320' to 6360' RKB recovered 40'. Cored from 6360' to 6400' RKB recovered 40'. Cored from 6400' to 6453' RKB recovered 53'. Cored from 6453' to 6457' RKB recovered 4'. Cored from 6475' to 6513' RKB recovered 55'. Cored from 6640' to 6660' RKB recovered 19.5'. 15. Logsrunanddepthwhererun Log Run #3: Ran DIL/GR/BHC from 3566' to surface. DIL/SP/BHT/GR from 6657' to 5813', LDT/CNL/GR to 6661'? to 3400' , LSS/DWF, SHDT/Temp., SHDT/GR/A'HS from 6658' to 5813', VSP:_+ 6660' to surface 6. DST data, perforating data, shows of H2S, miscellaneous data NONE NONE NONE RECEIVED APR 1 5 198_5 Alaska Oil & Gas Cons. Commission Anchorage 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. SIGNED '~/'~ '/~~ TITLE Drillinq Superintendent DATE NOTE--Report on this form is required for each calendar month, regardless of the status of operations, and must be filed in duplicate with the Alaska Oil and Gas Conservation Commission by the 15th of the succeeding month, unless otherwise directed. Form 10-404 Submit in duplicate . - STATE OF ALASKA ~L/ ALASKA ~ AND GAS CONSERVATION COr,..~AlSSlON ~__ MONTHLY REI ORT OF DRILLING AND WORKOVER OI ER&TION$ ;/ · Drilling well [] Workover operation [] 2. Name of operator ARCO Alaska Inc. 3, Address P.O. Box 100360 Anchorage, Alaska 99510 4. Location of Well atsurface 1040' FSL, 1037' FWL Sec. 18, T18N R20W, U.M. 5. Elevation in feet (indicate KB, DF, etc.) RKB 69' Ground Level 45' 6. Lease Designation and Serial No. N/A For the Month of April , 19 85 12. Depth at end of month, footage drilled, fishing jobs, directional drilling problems, spud date, remarks Depth @ end of month 6660' RKB plugged back to surface. NONE NONE Well was plugged and abandoned 3-27-85, rig released 4-6-85. on 4-12-85. 13. Casing or liner ru.n and quantities of cement, results of pressure tests NONE NONE 14. Coring resume and brief description NONE 15. Logs run and depth where run NONE 6. DST data, perforating data, shows of H2S, miscellaneous data NONE 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Drilling Superintendent DATE 7. Permit No. AA-051211 (84-1) 8. APl Number 50- N/A 9. Unit or Lease Name 10. Well No. Brontosaurus #1 11. Field and Pool Wildcat Spud date 1-24-85 Location was cleaned up RECEIVED APR, Anchorage NOTE--Report on this form is required for each calendar month, regardless of the status of operations, and must be filed in duplicate with the Alaska Oil and Gas Conservation Commission by the 15th of the succeeding month, unless otherwise directed. Form 10-404 Submit in duplicate STATE OF ALASKA ALASKA'O~L AND GAS CONSERVATION C0~MISSION SUNDRY NOTICES AND REPORTS ON WELLS 1. DRILLING WELL [] COMPLETED WELL [] OTHER 2. Name of Operator ARCO Alaska Inc. 3. Address P.O. Box 100360 Anchorage: AK. 4. Location of Well 1090' FWL, 1037' FSL Sec. 18, T18N, R20 W, U.M. 99510 7. Permit No. AA-OB] 21 1 8. AP~ Number 50- ~/~ 9. Unit or Lease Name 10, Well Number Brontosaurus #1 5. Elevation in feet (indicate KB, DF, etc.) I 6. Lease Designation and Serial No. RKB 69' , Ground Level 45' I N/A 12. Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data 11, Field and Pool Wildcat NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] Perforations [] Altering Casing Stimulate [] Abandon [] Stimulation [] Abandonment Repair Well [] Change Plans [] Repairs Made [] Other Pull Tubing [] Other [] Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). Plugged and Abandoned as follows: Set EZ-SV @ 5728' RKB, weight tested with 15000 lbs, ok. Mixed and spotted 50 sx Class "G" cement with additives, weight 15.8 ppg., on top of retainer. Top of cement @ 5583' RKB. Tested 9-5/8" casing to 2000 psi, ok. Spotted 29 BBLS CaC12 from 1000' - 600' RKB and 20 BBL Hi Vis CaC12 pill from 600'-310' RKB, in 9-5/8" casing. Injected 385 BBLS mud, 81 BBLS CaC12 followed by 200 sx Class "G" cement with additives in 13-3/8" x 9-5/8" annulus. Tested same with 1100 psi., ok, Mixed and pumped 95 sx Class "G" cement with additives, from 310'-45' RKB. Cut 9-5/8" casing @ 40' RKB. 13-3/8" and 20" casing c~t @ ~ 30' RKB. Filled all casing'and annuli with cement' welded metal plate over same. Cut cellar box 1' below grade. Rigged down and placed abandonment marker on hole. P&A'D 3-27-85. Presently pulling sills, filling reserve pits and clearing site and pad. RECEIVED 1985 Alaska 0il & Gas Cons. "' - "' Anchorage 14. I hereby certify tha~ the foregoing is true and correct to the best of my knowledge. Signed /Y///~~ ~~ Title Drilling Superintendent The space below for Commission use Date 4-3-85 Conditions of Approval, if any: By Order of z~ - ~// - ~_~'- Approved by COMMISSIONER the Commission Date Form 10-403 Rev. 7-1430 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate General Purpose Worksheet;~''~ ISubJect File JPage No. By AR3B-1473-D Of JDate ARCO Alaska, Inc. ARCO Explor~on - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 March 28, 1985 Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, AK. 99504 Attn: Chet Chatterton Chairman of the Commission Dear Chet: Again I sincerely apologize for this mix up in notices. I have straightened out the communications in our department. This incident will not happen again. Attached is the intent to plug and abandon the Brontosaurus #1 Well. The subsequent will follow by no later than 4-2-85. Please apologize to everyone involved for me. Thank you very much for your cooperation. If you have any questions please contact me at 263-4502. Sincerely, Darrell R. Humphrey Engineering Aide DRH/mal L01 3-28-85 ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany STATE OF ALASKA ALASKA'~::71L AND GAS CONSERVATION CO-NiMISSION SUNDRY NOTICES AND REPORTS ON WELLS DRILLING WELL [] COMPLETED WELL [] OTHER [] 2. Name of Operator ARCO Alaska Inc. 3. Address P.O. Box 100360 4. Location of Well t-eg~' , t037' PB-L Sec. 18, T18N, R20W, U.M. Anchorage, Alaska 99510~_ ~ ~ ~ % I r ~ Gas Cons. .~.ncbor~ge 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. 7. Permit No. 8. APl Number so- 9. Unit or Lease Name N~A 10. We~ Number Brontosaurus #1 ['111. Field and Pool Wildcat RKB 69' , Ground Level 45' N/A 12. Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] Perforations [] Altering Casing [] Stimulate [] Abandon ~] Stimulation [] Abandonment [] Repair Well [] Change Plans [] Repairs Made [] Other [] Pull Tubing [] Other [] Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). Present Status: 6600' TD 8-1/2" Hole Drilling, 9-5/8" C 5813', Permafrost at + 850', Mud weight 9.8 pPg Lignosulfonate Proposed Operations: We propose to plug and abandon the well as follows: o A cement plug extending at least 50 feet below the bottom depth to 50 feet abovef~f any hydrocarbon zone shall be placed in the open hole. If the hydrocarbon zone is extremely thick in section, 100 - foot plugs may be placed across the top and bottom of the formation. o Set a cement retainer at + 5738'. Place 50 sx cement plug on top of weight tested retainer. Plug to cover 5738' - 5598'. Casing & plug will be tested to 2000 psi. o After waste fluids disposal by injection has~been completed the 9-5/8" x 13-3/8" annulus shall be plugged with + 203 sx of cement to cover 35' - 750', and will have 9.5 ppg CaC12 fluid 750' - 1000'. o A 100 sx surface cement plug shall be placed in the 9-5/8" casing 350' - 35' with 9.5 ppg CaC12 fluid 350' - 1000'. o The 20" conductor will be cut at + 29'. A steel plate will be welded on top of it, with a 4" post extending to 4 ft above original GL with well markings on it. The cellar pipe will be backfilled to original grade level. o After the rig and equipment has been moved, the reserve pits shall be closed by back filling with excavated materials and be sloped for drainage. A thin cover of organic materials shall be on top. 14. I hereby certify that the foregoing is true and correct to the best of my knowledge. The space below for Commission use Conditions of Approval, if any: Approved by_ By Order of COMMISSIONER the Commission Date Submit "Intentions" in Triplicate Form 10-403 Rev. 7-1-80 and "Subsequent Reports" in Duplicate General Purpose Worksheet JSulctFile J~f' 0 ~1,,,~ ~-.~ ~.~u'~os~u~u~ No. I L,,,../r No. STATE OF ALASKA MONTHLY ALASKA! ,AND GAS CONSERVATION CC VllSSlON REPORT DRILLING AND WORKOVER OPERATIONS 1. Drilling well Workover operation [] ,2, Name of operator ARCO Alaska Inc. 3. Address ?.O. BOX 100360 4. Location of Well ~~~'~' at surface FSi- ~G~, 1037 ~ ~ Sec. 18, T18N, R20W, U.M. 5. Elevation in feet (indicate KB, DF, etc.) I 6. Lease Designation and Serial No. RKB 69', Ground Level 45I' N/A 7. Permit No. AA-051211 (84-1) 8. APl Number 50-- N/A 9. Unit or Lease Name NPRA 10. Well No. Brontosaurus 11. Field and Pool Wildcat For the Month of February ,19 85 12. Depth at end of month, footage drilled, fishing jobs, directional drilling problems, spud date, remarks Spud date 1-24-85. Drilled to 5457' RKB, footage drilled 3427'. Plugged back to 3423' RKB. Kicked off and started sidetrack at 3436' RKB. Drilled to 4660' RKB. Footage drilled = 1237'. 13. Casing or liner rgn and quantities of cement, results of pressure tests Tested 13-3/8" casing with 1550 psi for 30 minutes - OK. None 14. Coring resume and brief description Cored from 3462' RKB to 3478' RKB recovered 13', cored from 4394' RKB to 4414' RKB recovered 20'. Cored from 5146' RKB to 5150' RKB recovered 1'. 15. Logs run and depth where run DIL/SFL/GR/BHC from 4446' RKB to 2014' RKB Unable to get logs below 4446' RKB. R£C F_.IV red 16. DST data, perforating data, shows of H2S, miscellaneous data NONE 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. SIGNED TITLE Drilling Superintendent NOTE--Report on this form is required for each calendar month, regardless of the status of operations, and must be filed in duplicate with the Alaska Oil and Gas Conservation Commission by the 15th of the succeeding month, unless otherwise directed. Form 10404 Submit in duplicate General Purpose Worksheet jSubleC! File Page No. Of I~' ~.. ~. ?..ct q./ 3"/25' - 3 ~:,o' -r. 0 ¢. ,X, $000' ! RECEIVED ltlaska Oit & 6as Cons. Commission Anchorage STATE OF ALASKA ALASKA ~:)'fL AND GAS CONSERVATION CONfMISSION SUNDRY NOTICES AND REPORTS ON WELLS 1. DRILLING WELL~ COMPLETED WELL [] OTHER [] 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360 4. Location of Well 1040' FSL, 1037' FWL Sec. 18, T18N, R20W, U.M. 5. Elevation in feet (indicate KB, DF, etc.) RKB 69 ' Ground Level 45 ' 12. 7. Permit No. AA-051211 (.84-1) 8. APl Number Anchorage, Alaska 9.9510 s0- 9. Unit or Lease Name 10. Well Number Brontosaurus ~1 11. Field and Pool Wildcat 6. Lease Designation and Serial No. N/A Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] Perforations [] Altering Casing Stimulate [] Abandon [] Stimulation [] Abandonment Repair Well [] Change Plans [] Repairs Made [] Other Pull Tubing [] Other [] Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). Subsequent of final location platt, please see attached RECEIVED 2 5 1985 Alaska 0{{ & Gms C0~{~. ¢om,-,mlmsIon Anchorage 14. i hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ~ Title Drilling Superintendent The space below for Commission use Conditions of Approval, if any: By Order of Approved by. COMMISSIONER the Commission Date Form 10-403 Rev. 7-1-80 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate N. O R T H THIS ~RROW VICINITY MAP SECTION 18 BRONTOSAURUS NO, I LOCATION IN SECTION WELL NO. FROM SOUTH LINE 1040' FROlt WEST LINE 1037' STATE PLANE COORDINATES WELL NQ NORTHINGS EASTINGS 6,182,750.63 ZONE 6 i I 590~378.22 GEODETIC POSITIONS WELL NO. LATITUDE R/CEIVE, D FEB 2 5 1985 BRONTOSAURUS PROSPECT Alaska 0it & Gas Cons. Commis LOCATED IN'SECTION 18, TISN, REOW, U.M., ALASKA Anchorage · ~ LONGITUDE ;ion 157' 14' 44.169' CERTIFICATE OF SURVEYOR: I HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA ~ND THAT THIS PLAT REPRESENTS A LOCATION SURVEY MADE BY ME OR UNDER MY SUPERVISION , AND THAT ALL DIMENSIONS AND OTHER DETAILS ARE CORRECT. ARCO Alaska I cn DATE II - 25 - 83, ~ '' · DRAWN d.P.D. ~ I FI ELD BOOK 8326 ......................... !! 3335 Arctic Boulevard, Suite 201, Anchorage, Alaska 99503 i STATE OF ALASKA ' ALASKA .AND GAS CONSERVATION C~ MISSION MONTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS 1. Drilling well Workover operation [] 2. Name of operator ARCO Alaska In¢ 3. Address P.O. Box 100360 Anchorage, AK. 99510 4. Location of Well /O ~d ~---5/-,. ~Ldk 0~:2~_,~'~-~~/,~ at surface '1"~C>~{~'' F4'7~, 1037 ' ~ Sec. 18, T18N, 20 W Umiat Meridian Vertical Hole 5. Elevation in feet (indicate KB, DF, etc.) RKB 69' Ground Level 45' 6. Lease Designation and serial No. N/A 7. Permit No. AA-051211 (84-1) 8. APl Number 50- 9. Unit or Lease Name 10. Well No. Brontosaurus #1 11. Field and Pool Wildcat For the Month of January ,19 85 12. Depth at end of month, footage drilled, fishing jobs, directional drilling problems, spud date, remarks Spud date: 1-24-85 Footage drilled: 1943' RKB. Depth at end of month: 2030' RKB. None None 13. Casingorlinerrgnandquantitiesofcement, resultsofpressuretests ~an 2 jts 20" 91.5#/ft Grade B casing to 93' .RKB. Cemented with 6 sks dry Bayrite followed by 200 sks Coldset-II. Ran 50 jts 13-3/8" 72#/ft S-95 BTC casing to 2015' RKB. Preflushed with 50 BBLS thinned mud. Mixed and pumped 1200 sks Coldset III. Followed by 450 sks Coldset II. Displaced with 5 BBLS water and 16 BBLS mud, returns'throughout job. Had-cement returns with 900 sks Coldset III pumped. 14. Coring resume and brief description None 15. Logs runanddepthwhererun Ran DIL/SFL/GR/BHC from 2000' RKB to surface. Ran LDT/CNL/NGT/AMS from 2000' RKB to surface. 16. DST data, perforating data, shows of H2S, miscellaneous data None 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. SIGNED TITLE Drilling Superintendent DATE NOTE--Report on this form is required for each calendar month, regardless of the status of operations, and must be flied in duplicate with the Alaska Oil and Gas Conservation Commission by the 15th of the succeeding month, unless otherwise directed. Form 10-404 Submit in duplicate ARCO Alaska, Inc. ARCO Explm-,_..on -Alaska Operations Post Office Box 360 Anchorage, Alaska 99510 Telephone 907 277 5637 AFC:ANC100021810 SAMPLE TRANSMITTAL SHIPPED TO' State of Alaska DATE' Alaska Oil and Gas Conservation Commission 3110 Porcupine Drive Anchorage,Alaska 99501 Attn: Mr. Mike MEnder Feb 11,1985 OPERATOR' Arco S,~'IPLE TYPE-~'~I'e~Dry Ditch SI~IPLES SENT ~'~--t- ~-~=-'~ .... 1 Box 60-2150 (Drys) N.k~E' Brontosaurus #1 NUMBER OF BOXES' l~~.~/1Box SItlPPED BY' -"~ ' v Paleo Lab Tech. ,. UPON RECEIPT OF THESE S~qPLES, '~LEASE ~OTE ANY DISCREPANCIES :~ND i~/~iL A SIGNED COPY OF THIS FORM TO' ARCO ALASKA, INC. P.O. BOX 100360 ANCHORAGE, ALASKA 99510 ATTN: R. L. BROOKS RECEIVED BY: ~~. ~. ~~~~.~_ DATE' ,RECEIVED Gas Cons. Commission Anchorage ARCO Alaska, inc. is a Subsidiary ct AtlanticRichfieldCompany ARCO Alaska, Inc. ARCO Explor; -Alaska Operations Post Office Bo~.?~60 Anchorage, Alaska 99510 Telephone 907 277 5637 AFC: ANC 100~i810 SAHPLE TRANSMITTAL SHIPPED TO' State of AlaSka DATE: Alaska Oil and Gas Conservation Commission 3110 Porcupine Drive Anchorage,Alaska 99501 Attn~ Mr. Mike Minder Feb 11,1985 OPERATOR' Arco NAME: S,~IPLE TYPE' ~ Dry Ditch Brontosaurus #1 NUMBER OF BOXES: SAMPLES SENT: ..uoc.;c~a . iJ ~Cd~ff) '~-7'~f4a/~-O 1 Box 60-2150 (Drys) SHIPPED BY' Paleo Lab Tech. UPON RECEIPT OF THESE SAMPLES ANY DISCREPANCIES AND ~IL A SIGNED COPY OF THIS FORM TO: ARCO ALASKA, INC. P.O. BOX 100360 ANCHORAGE, ALASKA 99510 ATTN: R. L. BROOKS RECEIVED BY: DATE: ARCO Alaska. inc. lea Subsidiary of AllanlicRIchlieldCompany October 5, 1984 Mr, G. M. Hammon Drilling Superintendent ARCO Alaska, Inc. P. O. Box 100360 Anchorage, Alaska 99510-0360 Re: Brontosaurus No. ! ARCO Alaska, Inc. Permit No. 84-1 Sur. Loc. 1090'~, 1037'FSL, Sec. 18, T18N, R20W, TfM. Btmhole Loc. S A M E. Dear Mr. Hammon: Enclosed is the approved application for permit to drill the above referenced well. If coring is conducted, a one cubic inch chip from each foot of recovered core is required. Samples of well cuttings, a minimum of four tablespoons, and a mud log are required. An inclination survey is required as per 20 AAC 25.050(b)(5). If available, a tape containing the digitized log information shall be submitted on all logs for copying except experimental logs, velocity surveys and dipmeter surveys. Many rivers in Alaska and their drainage systems have been classified as important for the spawning or migration of anadromous fish. Operations in these areas are subject to AS 16.05.870 and the regulations promulgated thereunder (Title 5, Alaska Administrative Code). Prior to commencing operations you may be contacted by the Habitat Coordinator's Office, Department of Fish and Game. Cl'~ap~e~- 3, .A~-ti..clo 7 ~.~.d ~}~e ,~ ' (~'t~e 18, _.~ , _._ . .,~_ .. A].a" ~d~~rative ~ode C~apte~ 70~ and by Federal r.~ater ._ ' ' ' Pole_utc.on Control Act, as ar~ended. Prior-to co~:~encing ooerations you nay be cnnraotod h.- ~ reoresentative of tb.e Department of Env~.zonmental t,.mservation To aid us in scheduling field work, please notify this off,.ce 24 hours prior to cor~p~encip,~... _ ... installation of the blowout, prevention equipment, so that a reorese~tat~ve~ _ of the O,o~.~ssion~ mav~ be present to witness testing of the equipment before the surface casing shoe is drilled. !~aere a diverter system is required, please also notify this office 24 hours prior to co~encing equipment installation so that the Co~iss~ion may-witness testing be{ore drilling below the shoe of the conductor ~ipe. In the event of suspension or abandonment, please give this office, adequate advance notification so that ,ge may have a witness prese.n.t. Verx, truly yours, /.' ?- '.,//i/'~/ . ... .' I : ~:-/"--/ ' -,--/ . /' .................. · " - .,/ / / , ,...- /./,? i ? . ;7' [ r' ,,, ;7 /' .. C. V. Chatterton Chairman of Alaska Oil and Gas Conservation Co,~aission BY O~PDER OF ~E Cnt~ISSTn,~ Enclosure cc: Department of Fish & Game, Habitat Section w/o enc!. Department of Environmental Conservation w/o encI. ARCO Alaska, Inc. ARCO Explor~.'~rOn - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 October 2, 1984 Mr. Bill Van Allen Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99507 Dear Mr. Van Allen: As shown in our application for Permit to Drill, ARCO is anticipating the possibility of encountering the Lisburne formation somewhere below 7000 feet. Therefore, in accordance with AOGCC's Regulation 20 AAC 25.065. part (b) ARCO intends to meet the requirements of API RP 49 "Safe Drilling of Well Containing Hydrogen Sulfide" for "Locations with Confined Boundries". Sincerely, G. M. Hammon Drilling Superintendent ARCO Alaska, Inc. GMH/MBW/mal ~T ,~,taska Oil a caas Cons. commiSSiOn Anchorage ARCO Alaska, Inc. is a Subsidiary of AllanticRichfieldCompany ARCO Alaska, Inc. ARCO Explor~n ~ Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 September 28, 1984 K Mr. Harry Kugler Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Re: Application for Permit to Drill - Brontosaurus Prospect, NPRA - Supplemental Information Dear Mr. Kugler: Following conversations between our offices, this letter confirms ARCO's intent to drill the Brontosaurus No. 1 this winter. We would like to reactivate our Permit to Drill application filed with your office. The proposed plan of operations and drilling program are all essentially the same as the ones described in our application dated November 15, 1983 with a subsequent supplement dated December 6, 1983. We would like to point out the following changes or additions: NEW SCHEDULE OF ACTIVITIES APPROXIMATE DATES Cat train mobilization from Barrow Nov 1, 1984 Ice airstrip, roads and pad construction Nov 3 - 23, 1984 Mobilize rig, camp via Hercs. Rig up. Nov 20-Dec 31, 1984 Spud well. Drill & evaluate. Jan 1-Feb 17, 1985 Demobilize rig & facilities. Feb 20-Mar 20, 1985 Clean up site & restore. Mar 20, 1985-Summer The starting date for the entire project depends on winter terrain conditions, subject to applicable stipulations, thus all dates will be approximate. OCT o & ~as Cons. ComrnissJor~ Anchorage ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany September 28, 1984 Page Three We appreciate your prompt review of this additional information and hope this will complete the requirements for the Application to Drill. If you have any questions, please do not hesitate to call me at 263-4500 or Jim Arlington at 265-6173. Sincerely, G. M. Hammon Drilling Superintendent GMH/KML/mal Attachments RECEIVED OCT 0 ~ ].~¢ Alaska Oil & Gas Cons. commission Anchorage September 28, 1984 Page Two INCREASED DRILL PAD SIZE: The attached drawings will show that the ice drilling pad dimensions are now proposed to be 370' x 410'. This is because the drilling rig considered, Parker 123, will require more space than previously thought. The reserve pit depth have also been increased from 6 ft to 8 ft to allow more room for waste water. The increased pad dimensions will require at the most 282,000 gallons of water (or 6.5 acre-ft) more than previously estimated. The additional lake level drawdown is less than .25" at water source No. 2. HYDROGEN SULFIDE GAS MONITORING PLAN Based on offset well data, the occurrence of hydrogen sulfide gas is highly unlikely in this well. There will be equipment installed on the rig to monitor hydrogen sulfide gas, however. The ditch gas separator installed in the "possum belly" feeds a gas stream to the mud logging unit where it can be analyzed for separate components. Also, a Delphian "Mud Duck" probe installed in the possum belly can read soluble sulfides in the mud and gives early warning to the mud logging crew. In addition, 4-5 "General Monitors" gas "sniffers" will be strategically placed on the rig. These solid-state diffusion-type sensors have audible alarms which set off when 10 ppm of hydrogen gas is detected. These sensors will be placed on or near the rig floor, mud pits, shale shaker area, and the pump room. The drilling crew and all other rig personnel will be informed of such monitoring equipment and made aware of hydrogen sulfide hazards during the initial "spud meeting" and subsequent safety meetings. EXCEPTIONS REQUESTED FOR SURFACE USE PLAN STIPULATIONS Due to the unavailability of tractors with "wide snow tracks" in Alaska, we are requesting that D-8 tractors equipped with regular tracks be used for pulling the initial camp and construction equipment on the Cat-train from Barrow and to be used for limited plowing of snow at the Brontosaurus location. 0 t ~.~as~a 0%% & S&s Cons. Gom~s¢°n An¢ora~e b 1 lg'-O' 3'70' -f- -t- I ! I I I I I CAMP I I I I I I I I ! -I- -!- 2'70 ' 250 ' RESERVE PIT FLARE PIT -- SPOIL STOCKPILE PLRN L VIEN NOTE:~RER UNDERNEATH PIPE SHED AND RIG TO BE SOLID ICE, 12' THICK. REHRININ~ RREA CAN BE SNOH/ICE/ SLUSH HIXTURE. RECEIVED OCT o i ~ Alaska Oil & Gas Cons. Commission Anchorage SPOIL STOCKPILE 250 ' _1 100 o 1o0 SC/U.E: 1'" = ~00' PROPOSED RRCO BRONTOSRURUS wl NORTH SLOPE BOROUGH STATE OF ALASKA APPt.]~]~ ~l .l~l:;O~]~. s~'f2 ~3 ~,SEPT. '84 405284002 ,,,, . ICE TUt, ORA LEVEL SECTION TYPIC/~L FOR BURN PIT ALL SLOPES RPPROX N .T .S. ,TUNDRA L E VE~.~L~~.. 16' B" ICE SECTION B-B RLL SLOPES APPROX. 1:1 N.T.S. 8-]2" M]N 300' ':JO' .... _,_ 100' _, ,_ 10' ' ' t ! LEVEL ! SECT ION C-C ALL SLOPES APPROX. 1 :l N .T .S. M]N 2S0 ' ~;, ~0,,~' ]CE '--,~- FTUNDRA LEVEL SECT]ON D-D ALL SLOPES APPROX. 1:1 N.T .S. RECEIVED PROPOSED ARCO BRONTOSAURUS ~ 1 N.P.R.A. NORTH SLOPE BOROL~H STATE OF ALASKA ,qPPL]CAT]ON BY~ ~ ~ smi-r3 o~3 405284003 OVW~CE O~ T[~E OFFICE OF MANAGEMENT AND BUDGET DIVISION OF GOVERNMENTAL COORDINATION POUCH A W r-~ JUNEA U, ALASKA 9981 ! ./':i'~/' PHONE: (SO?) 4~5.3565 , PROJECT INFORMATION SHEET TO: REVIEWERS (See attached Distribution FROM (DGC contact): -.!FLt% ~0¢~ PROJECT INFORMATION: Sheet) * STATE ID NUMBER: * PROJECT TITLE: Materials attached .. Materials previously distributed AK83't~0~_~9/ * APPLICANT: APPLICATION FORMAT: Crmd REVIEW TYPE (see instructions) : PROJECT LOCATION: COASTAL DISTRICT: ELECTION DISTRICT: A< mr I CPC approved plan Federally approved plan ACTIVITY TYPE: FEDERAL ID NUMBER: REVIEWER DUE DATE:~ SPECIAL INSTRUCTIONS: DISTRIBUTION Lll. December 2, 1983 [755] [756] [389] [525] [458] [256] [613] [608] [524] [602] [279] [1028] [26] [611] [219] [529] [760] [111] [527] [52] [214] [163] [200] [11o] Ms. The Ms. Mr. Mr. Mr. Hr. Mr. Ms. R. Mr. Hr. Mr. Mr. Ms. Mr. Shehia Anjum, Anchorage Honorable Eugene Brower, Barrow Kay Brown, Department of Natural Resources, Anchorage C.V. Chatterton, Anchorage Joe C1 adouhos,- Department of Environmental Conservation, Juneau John Clark, Department of Fish and Game, Juneau Ty Dill iplane, Department of Natural Resources, Anchorage J. Scott Grundy, Department of Fish and Game, Fairbanks Karen Haag, Department of Transportation and Public Facilities, Juneau C. Harcharek, Barrow Edward Hopson, Barrow Carlton Laird, Department of Commerce and Economic Development, Juneau Bill Lawrence, Anchorage Douglas L. Lowery, Department of Environmental Conservation, Fairbanks · Diane Mayer, Office of Management and Budget, Juneau Robert McVey, U.S. Department of Commerce, Juneau The Honorable Nate Olemaun, Barrow Colonel Neil Saling, 6nchorage Mr. Keith Schreiner, U.S. Department of Interior, Anchorage Mr. Dave Sears, Anchorage Mr. Richard Spitler, Department of Community and Regional Affairs, Juneau Mr. Jonathan Widdis, Department of Transportation and Public Facilities, Fairbanks Mr. Ira Winograd, Department of' Community and Regional Affairs, Juneau Ms. Leila Wise, Department of Natural Resources, Anchorage - 1 - ARCO Alaska, Inc, ARCO E::ploration~..... laska Operations Post Office Box 101331~0 Anchorage, A~aska Telephone 90? 277 5637 November 15, 1983 Mr. Thomas Dean ~ureau of Land Management Fort' Wainwright Bui'l~ing 1041 Fairbanks A/K .o9707 Dear ~Lr. Dean: Application~ for Pe_~mit to ~rill ?s Enclosed for your. review is the APD for. our Brontosaurus .exploratory well. The package inc!ud&s four elements: 1) the drilling program; 2) a descriptio~ of the proposed activity, 3 ) the existing environment, .and 4) the proposed environmental training program. The drilling program is confidential and is marked as such. 'In order to facilitate handling of the APD package, we have .enclosed three copies of the paCkage.including ~he confidential material, and three copies of the package marked "For Public Review" which have confidential material excised. Since the leases in this area have not yet issued, item five of form 9-331-C has been lef~ blank. The drillsite will be on Tract 8 of I~PR-A Lease Sale 833 (July 1983). .. The selected wellsite location is 1090' ~-SFL and 1037 PSL, Section 15, T18N, R20W, . UM. ~2RCO proposes to mobilize the initial supply train on approximately January 17, 1984, with a projected spud date of February 23, 1984. Site restoration and demobilization will be completed by the second week of May, sooner if possible. ~_RCO will be operating under NPR-A Bond No. 8090-85-11 (BI~5 File '47569) in the amount of $300,000 effective May 20, 1982, in accordance with 43 CFR 3134.1. ARCO is directing, a certification of coastal zone consistency to the state office of Managemen~ and Budget regarding this project. We cer~aim!~ appreciate yo~ review of ~_his application. ~f you have hesitate to call me 265-6163, or P~ike Win~ree at 263-4974. Sincerely, Steve .~aj ewski SWG:rl% · . Attachments RECEIV.ED ~ ~ ? tg~ · . ARCO Brontosaurus No. 1 Table of Contents' Application f6r Permit to Drill (Form 9-331c) Lessee's Certification Section I Drilling Program (Confidential) Figure 1 Pore Pressure Plot Figure 2 Diverter Diagram Figure 3 BOP Stack Diagram Table 1 Casing Program Section II Description of Proposed Activity Section iii The Existing Environment Section IV' Proposed Environmental Training Program List of Maps and Figures Figure 4 Pad Design 'Vicinity Map Trail and LocatiOn Map 1:63360 Trail and Location Map 1:31680 Iio Description of the Proposed Activity. A® ~Objectiye The prospect to be tested by the ARCO Brontosauru~ No. 1 IS predicated on an updip truncation of sandstone on the south flank of B~ the. east-west trending Barrow Arch. Truncation of poten-tially oil . · _ bearing sands is supported by well data obtained from the"Kugrua~ South Meade, ~nd Waiakpa weds. Seismic data supports the presence of a stratigraphic trap in this interval. Location The ARCO Brontosaurus No. i is to be drilled on a' site 1,Dg0' FWL and 1,037' FSL of Section lg, TIgN,R20W, Umiat Meridian. This location, at ~ feet above sea level, is approximately 28 miles southwest of -. Barrow, and G miles from the Chukchi Sea coast, i':Location coordinates o. can also be stated as: - Latitude 700 -%' 32.q3J)" North Longitude 157° 10' ~2.~7#" West .X = 590,431.21 Y = 6,192,75g'63 The Walakpa Test Well No. 2. is ll.g miles northeast of this proposed well location. Ce Plan of Operations 'ARCO anticipates the award of leases and issuance of necessary permits to occur sufficientiy early so as to enable project mobilization to begin by 3anuary 17, 19gO, A Cat train is planned to transport 3 E, 3anuary 30- February 23, 195# Mobilize drilling rig, camp, and equipment via C-I~0 Hercules. Rig up equipment and support facili,Je~. Spud well February 23- April 12, 19gl~ Drill, evaluate, and abandon well. April 12- April 30, 1954 .' Dembbilize drilling rig and support facilities via C-130 Hercules. Clear all supplies and equipment t:rom drilll site and re~tore site .: in accordance with BLM regulations. : Summer, 19g~ Police wellsite area and remove any ,.materials previously ~ · 'overlooked. Si'~e Preparation I. Construction Mobilization Construction equipment and camp facilities will be-mobilized overland by Cat train from Barrow to the wellsite. Travel will be along the ~rall as indicated on the a~"tached drawing. This traLl was reconnoitered and s~ked in September 1993. Travel will occur only after "Stipulations ConCerning Winter Road and Trail Construction and Use Within National Petroleum Reserve in Alaska" has been satisfied, and Will be in accordance witti the Final Environmental Impact Statement (Feb. 1983). construction equipment and temporary camp faculties overla~d from Barrow to the weLlslte. Preparation of an ice landing strip will begin immediately to enable early nlr support of the operation, E. xcav~tion of a reserve pit, construction of a "thin pad" drill site, and preparation of the necessary ice roads should result in completion, o! the construction portion of this project by ear]y February. Mobilization of the drilling rig and support :[aciJities via C-130 'Hercules aircraJ~t is planned to begin immediately upon completion a~d 'certLfication of the '6,000 foot ice landing strip in. late 3anuary. Approximately 3 weeks have been budgeted for the transportation and assembly of the drLtling and support equipment. The beginning o:[ this - activity wi11 overlap somewhat with the fina~ stages o:[ site . preparation. This 'planned mobilization results 'in a anticipated spud . date of February 23, Drilling related activities on this well are estimated to requi~e B1 days to completes and an additionaJ 16 days of evaJuation activities are planned. Demobilization of the drilling ri§ will begin on AprU 12, 1!)gq, and. the wellsite is expected to be cleared of eclulpme~t and the · reserve pit properly backfiiled by May IF Il)gq.- D. ?perations Schedule 3anuary 17 - February qt 1!)gq MobLl~e construction equipment ~nd temporary camp overland by (Cat train :[rom Barrow. Construct ice landin§ stript dri1~in§ pad, reserve pit., ice roads. Begin demoblllz~tion of construction · equil>ment and temporary c~mp. . Equipment mobilized by the Cat train may include some or all of the following: ~ D-7/D-g Caterpillar Tractor pulling Trailers 2 Front-end Loaders End Dump Trucks Delta All-Terrain Vehicles 1 Road Grader 2 Tucker Snow Cat Vehicles 1 Fuel Truck 2O Light Trucks/Vehicles Camp Trailers ® Transportation/Support It is anticipated that Tractor Lake, which was found to be I ~o 1.~ feet in depth when reconnoitered in September, 19g3, will be frozen to bosom az~d require only minimal preparation, for landing aircraft. Thus air shipment of fuel is expected' to occur very early in the. project and the necessity to haul fuel overland from Barrow should be minimal. Ii overland fuel-re-supply becomes necessary, 3,~00 or 7,000 gallons could be hauled across the winler trail bi' a Delta-3 or Delta Commander, reSpeCtively. . , These low §round-pressure rubber-TXred vehicles are designed for such applications as tundra travel and can easily handle such an assignment, Fuel' storage methods utflized on this location will meet wi~h ELM requirements for safe storage and environmental, protection. All fuel storage will be within double walled steel ,e tanks, or single walled tanks placed in bermed areas designed to contain a minimum of 110% of the tank capacity. These bermed storage areas will be lined wi~J~ an approved impermeable membrane. SpLtl Pre4ention Control and Countermeasures ( SPCC) plans will be prepared for the fuel storage areas alter .- selection of contractors ha~ occurred. The SPCC plans will be · submi~ed to the BLM prior to the start of' field operations. .Absorbent materials, drip pans and other equipment,, will be · available at ail fuel storage areas and on equipment. ' :. -.. · . · In addition to fuel transport, Personnel and supplies will be fuel transporting. shipped to location by air. Air support will be provided by C-130 - - . Hercules and Twin Otter aircral~. Overla~d travel, anticipated ~ .- .. . to play only a very minor role in support in-field operations, will · . be limited chiefly to initlai mobLEzation and final demobLliza~ion .opera~Jons, e Construction Camp Facilities The first construction activity will-be to assemble the sleigh- mounted Camp units on a suitable location near the wellsite. The camp will provide room and board for approximately construction workers and support personnel. Water for domestic purposes, about 3,000 gallons per day, .wLtl be hauled over a winter trail from the water source lake 1.75 miles · southwest of the' wellsite, using a low-gound-pressure rubber- tired vehicle until an ice road can be constructed. Human waste will be disposed of in incinerator toilets. Gray water, generated from washing and from the kitchen, will be disposed of on the tundra. Solid wastes will be incinerated and the noncombustible remnants, i.e., cans, glass, as well as worn out parts and equipment, will be backhauled to established disposal facilitie~ Camp power, heat, and 1i§hts will be suppIied by port~ble diesel generators. Ice Airstrip and Access Roads An ice airstrip, 1~0 feet wide by 6,000 feet long, wLLI be built and used by ali aircraft including the C-130's. This airstrip wLLI be located on the central portion of Tractor Lake, (m~ximum measured depth i.~ feet) 1.7~ miles northeaSt of the wellsite. The ice airstrip will be oriented North, 69o East to coincide approximately with the prevailing winds. Construction of the ice airstrip wLll consist of blacikng' the snow off the lake area to be used for the airstrip~ taxiway, and'.apron~ and buildln§ ice as necessary to smooth the lake surface. 'Due to the minimal water depths, the lake is assumed to be frozen to bottom by 3anuary. Should this not be the case, snow removal from the lake surface should speed the freezing process,-and holes may be drilled through the ice to enable pumping wate~ to the surface to flood the airstrip where it will rapidly freeze. · The ice landing strip will not be put into service until ice thickness or depth of freeze can be determined by boring several test holes. A trailer will be located at the airstrip to provide facilities for a weather observer/radio operator. A runway lighting system will be installed, utilizing su~ace-laid cables and . . :Dozen-down lights which will be removed upon demobilization o:[ the drilling program. ' A generator will be required to power the Erport ~acilities and - :: · will be located within these facilities. Fuel will be hauled dally . to the generator /rom the c.~mp. A fuel~g system for light aircraft will be available at the landing strip. This system will utilize a 1,000 gallon steel tank and an electric'pump powered by -: the airstrip generator, This steel tank wLU.:'-be located within a -. steel containment structure capable of hol~iing II0 percent of the volume of the tank. When not in use, the fuel hose nozzle . . . will be stored in a drip barrel The ice airstrip and the wellsite will be connected by a 30 foot ice road approximately 2 miles long. About haJ5 of this road will 'be on tundra and ha)J[ on lake ice. This road will be constructed 'concurrently with the landing strip~ and water will be hauled ~rom the Section 3-~ water source lake, 3.75 miles northeast of the welIsite. A I mile long ice road wLLI be constructed to access this lake from the east end of the landing strip, ^ typical 30 foot wide ice road on tundra requires approximately 1.5 acre-feet of water per mile during initial construction. The presence of snow can reduce this requirement and ice ro~ds on shaJlow lakes may have only minimal water requirement~ l~lalntenance of ice roads on tundra can require an additional acre-foot per tulle over time. The total estimated water requirements for initial construction of ~.3 relies of ice road (2.7 miles of which are on tundra) and a E;,000 foot by 1~0 foot runway are 1E; acre-feet. DrLLling Pad The drill site pad design is as indicated in Figure #. This "thin pad" design eliminates the need to excavate a~d trm~port borrow materi~ to the well pad area. The need for ice roads is also signEicantly reduced. The resultant impact on the ~rea is considerably lessened because the size of the disturbed ~rea is reduced as is the scope of the disturbance. Utilization of this design is facilitated by the. relatively brief program required to drill this well. Drilling, evaJuation, 'and ~bandonment can be accomplished in ~0. days, during which time care can b~e taken to prevent thaw In the pad. Construction of the drilling pad .with an average thickness of 2 feet wLLI require approximately' cubic yards of material. Utili~ation of ice Within the drilling pad can minimize material requirements. After excavation and isolation of the surficial ve§etative mat) the reserve-pit will be excavated to a depth of (; to g feet below _ e×istin~ ~round level. This will permit a minimum burial depth , 9 of the spent drilling mud and cuttings of ~ feet upon backfilling the pit at abandonment. This depth of burial will insure the Incorporation of the mud and cuttings into the permafrost amd immobilization of all materials therein. When backfilling the pit, slits and peats will first be replaced and the vegetative mat, .. stockpiled when the pit was excavated, wLll be placed on top, crowning the backfLlled material. This procedure should promote .early growth and an expedited recovery of the natural vegetative mat. Support of the drilling rig will be achieved .by trtilizing a timber sill foundation. Marring boards and an impermeable membrane will be placed on the sills to help distribute' the loading and '.. prevent water and other fluids from reaching ).he pad surface. -: . The air passages created by the parallel pl[cement of the sills · wLtl be kept-open to promote the circulation of cold air above the pad surface, thus mainta~rdng pad temperatures beiow 32OF. Upon abandonment of the loc. at[on all debris and materials will be removed from the site and disposed of in approved facilities. A post-breakup reconna~s~nce of the area will also be conducted to insure complete removal of all debris. Completion of Construction_ Upon completion of construction activities on the wellsite, the construction equipment and camp will be demobLtized vi~ C~t · train to Barrow, following the approved winter trail used earlier. A portion of this equipment may remain on location until completion of the drilling pro,ram, at which ~ime it would be used to restore the site. Final overland demobilization, however, Would occur prior to Ivlay 1, 1954. D. rilli, ng; l~i~ and Drillin~ Camp. Operations Mobilization of the' drilling rig, camp, support equipment, and well material is anticipated to begin by late :lanuary, 1954. This air-llf~ is expected to require approximately 150 trips 'to location by C-130 'Hercules aircraft. Crews will begin assembling ~acilities and · 'equipment immediateiy upon their arrival on location. Total'tirne estimated to complete the move and rig-up operation is 24 days, resulting in an anticipated spud date of February 23, l~g4. As of ~d'ds · writing a contract for a drilling rig h~s not been awarded. It is quite likely however, that a rig will be mobilized to this location from ~ahe Deadhorse/Prudhoe Bay area. Drilling activities, including coring and logging, evaluation p~ocedures and abandonment activiTJes are estimated to require 4~ days to accomplish. During this period wellsite personnel are expected to number :[rom #0 to 60, depending upon the particular activity. Room and board for these people will be provided by the rig camp, which will 'be located adjacent to' the rig on the wellsite pad. TransportaTJon of personnel to and from the wellsite as well as transportation of small supplies will be provided by an airplane such as a Twin Otter. Heavy materials and fuel will continue to be 13'ansported by C-130 HerCules aircraft. Domestic water consumption is estimated to average 3,000 ga.Uons per day. Water usage for drilling activities is estimated at 20,000 gallons per day. Drilling and domestic usage is thus estimated to total 1,300,000 gallons over the entire program. Water will be d~rawn from the Section 23 lakes, located 1.75 miles southwest of the drillsite, and will be hauled to location by suitable vehicles traveling on the ice road. " All camp-generated waste waters will be treated., by state approved · and permitted facilities, provided by the drilling contractor. Solids -.. will be burned in an approved incinerator and the;ashes disposed of in the reserve pit. Non--conbustibles such as metals and glass will be hauled to an approved dispos~l site. G. Testing and Abandonment Procedures Drill Stem Tests wLU be conducted as necessary to evaluate potential . · hydrocarbon reservoir parameters. These procedures will be conducted after the formation of interest has been cased off. The specific interval will be.perforated, isolated from the remainder of the borehole by use of packers, and formation fluids flowed to surface through a ~ubing test string..' Liquid free gases will be flared and liquids will be burned using an approved smokeless burner, Upon suspension of drilling and testing activities, the well will be abandoned by the appropriate placement of mechanical and/or cement plugs. The proposed suspension procedures will be submitted in advance to the ELM for approval. He Proposed l~,ehabiXitation Procedures A~ter the well has been completed and tested, the rig and support facilities' will be disassembled and with any remahning tubular goods, drU!ing muds, and miscellaneous supplies wi11 be demobilized via C-130 Hercules. The drLLlsite is scheduled to be restored by early May 195#. ~ visible debris wLLI be picked up and disposed of at an approved disposal site. The reserve pit wLLI be backfilled and crowned with the vegetative mat previously stockpLied. After spring thaw, the area wLU- 'again be policed for any debris that had been buried under the snow. The ~_xistin~ F_nvironment A. P,e~iona! Characteristics 1. Ph.ysio~raphy ~nd Geolo~ The we~site and winter ~ routes lie en~rely wi~ ~e Ar~ Co~t~ Plan Province. The region~ geology ~ phy~ography of the co~ plain h~ been descried ~ ~e ~in~ ~nvironment~ Impa~ Statement (Peb. 1983) ~, Chapters and II, i ma~or factor shaping ~e land in ~ provi~c~ ~ ~e pr~ence of perm~rost. No~sou~ oriented ~aw 1~ ~d polygOn~i~on of ~e ground are ma)or ~rm~rost-r~ated geomo~hlc features of ~e co~s~ plain, The former graphi~ly ~lustrated in the we~site are~ topographic map. " 2, Terrestrial Biotic Environment Vegetation The regional vegetation characteristics of this low, marsh), area are discussed in the FEIS, Chapter II, Section A. Vegetation can be characterized as wet sedge meadow. b, Birds ' The avilauna of the coastal plain and other provinces . the NPKA is disucssed in the FEIS, Chapter II, Section IL · '._- · · Terrestrial mammals of-the Arctic.' Coastal Plain are discussed in the FEIS, Chapter H, Sec~ion 1I. Marine Mammals occurring in waters adiacen.'t to the NPIV. A, and ~ · on lands wi~ahin NPRA in the case of Polar Bears are also · discussed in Chapter Il, Section II.-- . . · . Freshwater Environment Rivers There are no ma}or rivers in close proximity to the Brontosaurus wellsite, although several' minor streams, Incl6ding the Inaru P. iYer and Niklavik Creek are located to the soul~. The streams in this region are typical of the numerous small meandering streams of l~e Arctic Coastal Plain (Chapter II, Section V). Lakes Numerous shallow lakes and ponds are scattered throughotn the vicinity; a descrip~on of these water bodies is contained 'in the FEIS, Chapter II, Sec~on V. Marine Environment Because the Brontosaurus wellsite is located about six miles from the coast of the Chukchi Sea, the marine hnfluence has an' important impact on the climate, vegetation, and animal life oi the area~ The nearshore waters of the Sea are covered by ice for about nine months each year. The chemical, biological, and physical elements of this marine environment influence to a degree the near shore environment. Sensitive Environments There are no known terrestrial, ireshwater, or marine environments, including biotic and abiotic components 'and their · interrelationships, which are critically or unusually sensitive, when compared to the entire area of-the Arctic Coastal Plain and the contiguous shallow olishore area. - . Threatened or Endangered Species There are no known, officially designated, threatened or endangered, terrestrial or freshwater, plant or animal species in the area of the proposed action. Several species oi whales~ listed as being endangered or threatened, may at times trarisit 7, the nearby (6 miles) offshore areas. These species are: gray, bowhead, finback, humpback, and se1 whales. However, because of the sea ice none wLU be in the area duriag the period of the proposed action. Cultural and Socio-EconomiC Considerations Communities .' The City of Barrow is approximately 2g miles north of the drillsite. There are several Native Allotments in the area, .. however, the nearest of these is app~-oximately 10 miles from the wellsite. Overland travel routes Will avoid these allotments. b, Archaeological and Historical Resources :. s . No archaeological or historical sites t~aVe been identified · . on or immediately around the proposed wellsite. (Lobdell, · . August i?~3). However, the adjacent coastal' strip is considered a critical archaeological zone. Numerous sm~.l sites and important habitations are known. Oi special men*ion are the many sites at Walakpa Bay and Lower · Walakpa river .which have been the subject archaeological investigations (Stanford 1976; Hall 1992). g. Land Use Subsistence Use ol the Walakpa area for subsistence purposes is documented by the North Slope Borough Tradition~1 Land Use Inventory. Most of the sites listed in the inventory are located along the coast. Barrow residents use camps and the large lakes in the area as bases for duck hunting and egg collecting during the snow free months and caribou hunting year round. Dr. Edwin Hall is conducting a subsistence study of this area at the present time. b, Recreation In the Brontosaurus area~ subsistence activities such as summer camping and winter hunting are combined with recreational activities. Visual Qualities The regional landscape is highly unilorm. Reliei'is minimal and vision unobstructed for long distances. Numerous old trails resulting from past activities of the Navy and Air Force and from overland native travel are apparent on the ground 'and from the air. Site-Specific Characteristics 1. Drilling Site . . PhysiograPhic Setting . The wellsite is located on a~wet grassy area about ~ feet above sea level. The area immediately surrounding the wellsite is relatively flat. Low-centered polygons, interspersed with an occasional poorly-formed 'big,h- · centered.polygon, are prominent features o! the landscape. 17 be C. Also~ margins of drain.ti lake beds form oc~ionnl iow ridges in this area that rise 10 to 15 feet above the surrounding tundra. The nearest lake to l~he wellsite is located in Sections 18 ~nd 19, about 0.2 mile to T. he Geology The primary obiective of this prospect, :'is predicated on an updip truncation of sandstone on the south flank of the east-west trending Barrow Arch. .- .:: ~ .- Soils · Wet tundra soils with a G to g inch layer o:[ moss are underlain by peat and organic slits to approximately 6 feet. -. Below these organic soLEs were found<slits and clayey-silts . ~ . with visible ice (moisture contents far'ged :[rom 2D to 300 percent).' Occasional lee lenses of less ti{an 12 inches · . · thickness are also present. de Drainage The area of the weI1site is relatively ilar and totally lacking in evidence of an estabhshed surface drainage pattern. e. Permafrost Features Surface manLfestations of the underlying ice wedges are present and well displayed in the area immediately ~....' surrounding ~he wellsize. The_se fe~zure~ include some high-centered polygons, but low-centered polygons predominate. The permafrost ~ble is found at a depth of about l g ihches.- ils Ve§eta~ion Vegetation at the wellsite is common to a poorly drained wet-sedge meadow. High ground in the polygon complex is- dominated by tuSsock-forming cotton§rass, mosses and lichens as well as Mountain cranberry, willow, four-an§led mountain heather, Arctic blue§rass, and woodrush and are likely the dominant species present. Narrow-leaved Labrador tea, Arctic bog rhubarb, water sedge, saxifrage, and alpine holygrass may also be present.in the area. ge Birds A variety of shorebirds are found in the vicinity. 'Pectoral sandpipers, .dunlins, and red phalaropes are likely the most common~ but goiden plovers, long-billed dowitchers~ and semipalmated sandpipers also may occur. In a'dciition to the shorebirds~ Lapland longspurs would be likely about the . . site. Although §lacous l~ulls~ Arctic terns, ^rctic loons, and several species oi ducks, especially pintails and old squaws~ are less common, they do occur regularly in the region. Parasitic jaegers, pomarine jaegers, and snowy owls may also utilize the area. There are no record~ of threatened or endangered bird species in the area~ and none are to be expected. ,, 19 Mammals Brown lemmings utilize the area of the wellsite, and other microline species also may be presen~ Arc-ftc fox may occur regularly in this area. Small §roups of caribou periodically move through the area. Additional mammalian · species occasionally present include the least weasel and red fox. The only marine mammal which might be encounzered near the wellsite ~ould be an occasional polar bear in winter. Fish The small, shallow ponds in the wellsite area are not capable of supporting fish populations., some 30 lakes were sampled during the site visit and all but mo were too shallow ~o .support fish populations ~f any' significance. -_ · The water source lake 1.75 miles, southwest of the site is .. potentially capable population but ,ince it is relatively shallow ~nd ha~ no obvious inlet or ou~et, fish are unlikely. Archeologlcal and .Historical Survey The' drilling site was examined for cultural and historical resources by Dr. ~ohn Lobdell in August, 19~3. No cultural " or historical resources were identLfied in this area by- th~s survey. · , 20 2, Suriace Access a. Winter Trails Use of a winter tralJ wLL1 be necessary to move the construction equipment, temporary camp, and supplies to the wellsite from Barrow. The distance involved will be about 30 miles across vegetated tundra~ This trail generally parallels the existing win;er trail in this area, until reaching the north end of Tractor Lake. At this point the trail wkll traverse the edge of the lake and connect to the planned ice road system at the landing strip. The lancis traversed by the winter trail consist largely of relatively flat terrain dominated by wet sedge meadows. The tra.kl extends south and slightly west of Barrow toward the · weHsite, occasionally crossing small streams en route. The stream beds are generaJly only a few feet below the surrounding terrain and will be crossed using a low angle approach. The trail route has largely been examined by GS /BLM archeologists and Dr. 3ohn LobdeLl has reviewed this area. No historical or archeological sites have been identified. b. . o Ice Roads A 5.3 mile-long ice road will be constructed from the weHsite to the airstrip and water source lakes~ Approximately 2.7 miles of this road will be on tundra, and 2.~ miles on lake ice. There is little topographic relief~ less than live feet~ in the areas traversed by ice roads. The on-tundra portions of the route mostly cross wet sedge meadows, interspersed occasionally with drier tussock areas. In crossing these latter ~reas~ the route is planned to traverse polygonal · _ ridges where they are lower and the land wetter than in surrounding areas. In general this area is excellent :[or application of ice road construction, and there is little potential for construction. environmenzal damage from such .- :- .'. The ice road route has been examined-by Dr. 3ohn Lobdell (August, l?g3) and no arche°logical or historical sites were . identJSied. ~ '. . .. · . . · Water Sources ,! · · . Water :[or ice road construction and drilling operatioris will be obtained :[rom lakes located 1.7~ miles southwest and ~.~ miles northeast of the we115ite. The eastern-most o! these lakes is approximately 0.6 miles ~rom the eastern end of the Tractor Lake airstrip and will be heavily utilized durin§ construction · activities: The deeper of the two lakes is closer to the drillsite and will be use for water supply for drilling needs in late winter. Water Source Lake (1.75 mi. SW of drillsite) 1) Loca.tion: Sec~ 23, TlgN, R21W, U.M. 2) Size~ ~0 acres Maximum Depth: 7.g feet Volume below 5 ft. ice cover: 220,000 cu. ft. Fish: unlikely Subsistence and recreation use: None expected known or 'b. Water Source Lake (3.5 mi. NE of drill site) I) Location: Sec. 3 & 4, TlgN, R20W, U.M. 2) Size: 1500 acres 3) Maximum depth: (;.2 feet Volume Below 5 ft. ice cover: 25,000,000 cu. ft. 5) Fish: unlikely 6) Subsistence and recreation use: expected None known or Treated Sewage Effluent DisposM The area receiving .treated sewage.effluent will be typical o! wet sedge meadow vegetation. C® Evidence of Past Human Disturbance ' ii m In addition to the evidences of p~st and curren~ subsistence.~amps, espeCially along the coast, long lasting modifications of the l~n~scape have resulted from the concentration of people and activities at Barrow. Linear scars stretching for miles were left by tracked vehicles operating out o! Barrow in support of earlier petroleum exploration programs. More recent scars-have been left 'by snow'mobiles and sleds operated on the tundra during the summer. · Rusting barrels of undetermined age are encountered frequently across 23 proposed Environmental Trainin~ Prog. ram . ARGO will provide an environmental training program in compliance with lease stipulation No. ~. It will consist ot video ~ape prepared by the Arctic Environmental Information and Da'ca Genter. The videotape highlights points of awareness that all personnel should be famli[ar with, such 'as: , . Permi~ are required for most activities' and mu~ be adhered ~o, Animal harrassment and feeding are prohibited. Archeological sites- Lt discovered must be left undisturbed. Waste disposed practices are requlated by pc. rmi% and are to be- adhered '~o. ~.- . . Oil spills must be prevented, but if they occur, prompt action is to be ~aken to clean them up. 6. Travel on ice roads and' winter trails must not damage the' tundra. : The program will be supplemented by printed materi~ll which will be made available io those who desire further ir~ormation. These.are: . · 1. The North Slope Environment and its People. 2. The Subsistence and Cultural Survey Reports prepared for ~xis well. The program moderator will inform ali workers of ARCO's policy and intent to conduc~ this drilling program in an environmentally sensitive manner. In addition he will inform all personnel of the following:. 'q'he rural residents of the North Slope shall have the right of ingress and egres~ and the right' to u~e the leasehold in conducting their hunting, trapping and related activities, in accordance with applicable law provided that such rights shall not be exercised in such - a mannor as to endanger-:he Sa~e~y of Lessee's employees or ci~mage Leesee's equipment or facilities", 24 ARCO will provide cards to each trainee demonstrating that they have completed the program. In addition, lists o! all personnel receiving training will be kept for inspection at the wellSite. Supervisors and managers in addition to receiving the training program, will be briefed in detail about the technical environmental issues involved with this well program. They will also be made aware of the stipulitions of permits applicable to the drilling of the well. The Environmental Training Program will result in all personnel becoming more aware of the types of environmental, social and cul~urai concerns th~ relate to their ]ob. · ARCO Alaska, Inc. ARCO Explor~-rr-, on - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 November 9, 1983 Mr. William Fowler Regulatory Functions Branch P. O. Box 7002 Anchorage AK 99510 Dear Mr. Fowler: Application for Section 404 Permit Brontosaurus Prospect NPR-A Enclosed for your review Ts our application for a permit to construct a drilling pad for our Brontosaurus exploratory well in the NPR-A. The .proposed project employs thin pad methods which fall within the terms of General Permit #81-II. The wellsite location is 1090' FWL and 1037' FSL, Section 18, T18N, R20W, UM. !ARCO proposes to mobilize the initial supply train on' approximately-'January 17, 1984, with a projected spud da~e~.of February 23, 1984. Site restoration and demobilization will be completed by the second week of May, sooner if'possible. Preapplication conferences have been held with the following state and federal agencies per the guidelines of GP 81-II: Federal Agencies Bureau of Land Management U. S. Fish & Wildlife Service Environmental Protection Agency State Agencies Alaska Department of Environmental Conservation Alaska Department of Fish & Game North Slope Borough Planning Department Environmental Department RECEIVED ARCO Alaska. Inc. is a Subs,chary of AtlanlicRichfielOCompany ARCO is directing a certification of coastal zone consistency to the state office of Management and Budget regarding this project. we certainly appreciate your review of this application. If you have any questions or comments please do not hesitate to call me at (907) 265-6156 or James Buck at 265-6163. Sincerely, Landman SG/kl AP?L';CATION ]=OR A DF'"~,RTMENT OF THE ARMY PERMIT For use o~,. .s form, see EP 3145-2-1- ' 'he l~cparl~nen: of the AtTny permit program is adthorized by Sect;on 10 o; ~e River ~ Hater ~, ~ 92--S00 ~d Secti~ 303 of P. ~ S2-532. These laws re,ire pe~;;s au;~or;zing statures ~redged material ~or ~e p~ose of.dumplng it into ocean waters, inlo~ation provide~ in ~a~ ~ ~345 w~ll ~ used in ~alua~ :he =ppi;cation tora pe~% Info.etlon i~ ~e application is made a matter of public re.rd ~ugh is~ce ota ~blic mtic~ 3isclo~re of ~e info.at[on requested is ~lun~; however. ~e data requested are necessa~ in order ~ ~mm~i~:e ~% applicant ~d ~ evaluate :de pe~it zpplication. If nece~a~ info~ati~n is not pmvld~d. ~e pe~t :ess~ nor c~ a pe~it ~ 3ne set of orig;nal d~w~n~s or ~od reproducible ~p;es v~;~ ~ow ~e location ~n~ ~aracterof ~e pm~sed a~;v;~ must be attuned to ~;s ~plication [see s~ple drawings ~d checklist) end be su~itted ~ ~e O;strict over ~e location of ~e proposed act;vi~. ~ appti~tion ~at is not ~mpleted in [uti will ~ Applica:ion number (30 be assigned by Corps) . · 4, Name and addr.ss of ~pplicant,, 2. Date ;l 2~ For Corps use only,' - .o 18 11 83 '.. '. Day Mo. Yr. ' - . . - - . 5, Name, address and tizle of authorized agent.., .. ARCO.klaska, Inc. P.O. Box 100360 Anckorage, AK 99510. Telephone no. during business hours A/C 19071 265-~15~ S~ephen..W. Gajewski : . ARCO Alaska, inc. .. Tel ephone A/C [907}, 265-6156 _ A/C ( ) .. 6. Describe in detail ~-~e proposed activity, its purpose and intended use (private, publiuo commerce! or o~.her} ;nclu6ing ciesctlp-- tlon of the type of structures, if any to be. erected on fills, or pile or float--supported pta:forms, the type. composition and quantity of materials to be discharged or dumped and means of conveyance, and th,e souffle o,! elis ,cha.~e or ~ll material- If ' additional space is needed, us'e Block 14~ '~LRCO Alaska, Inc. proposes :o consr~uc: an -.~ce p.aG, reserve pit, and flare pit for the purpose of drilling an explorat.ory well. The purpose of the ice pad is to support the rig. The pfk~pose of the reserve pit is to contain the spent muds and cuttings f~om drilling operations. The flare pit is to contain .any_ substances released-during flaring'. ' The vecetative mat within'the area to be utilized, a~ the reserve pit and flare Pi.t, app~oxima.~ely 800 cubic ya~. ds, will be removed a~d stockpiled adjacent .to the pits ~s shown in the attached .. drawings. Both pits will then be ~xc~vated to a depth of approximately 6 .to 8 feet below ?. N~mes, addre~es a~ telephone numbers of adjoln;ng property ow'nors, lessees, etc., v.~nose property also a~olns~e · · Bureau' of Land Management, Department of the Inte~,ior, U.S. Government · 8. Lo'cation v/nero proposed activity exists or will A~c~ress: ~ ' National Petroleum R~serve Alaska Street, road or other descriptive location · In o~; near city or town North Slope Borough 'Alaska County Stzrte Zip Code · Tax Assessors Dc'script;on:. [1'~ l~ap No. Subdiv. No. sec. Sec. . Tw.~ ~:L?, C~ U.~. 9. Name of waterway at location oi the activity. · · . 0. 'Da%e a~ivi~ is ~r~:~ose,~ to ~en~r~__~ Janu. ary 15, 1984 Da~e am~vi~ ~ expected ~ b~ ~i~ .' J~e I, 1984 ,, I1. IS ~y po~ion of ~e a~lvi~ for ~1~ au~dz~;~ is ~ht ~w ~lete? If ~swer is '~es" g~ve rea~ns ;n ~e r~m~ se~io~ ~n~ ~d ye~ ~e amiv;~ ~ ~leted List all 'approvals or certifications requ;red by Oi~%er fe~,~l, interstate, state or local ag~nc;=.~ for any structure~. tion, c~is~-~arges, deposits or other actlv]ties desctibecl in ~is Issuing Agency Type A~provml Ide~tlf;cation No. L) ~ ~pli~~n ~r Pe~t to Drill (~ill~g Pr~~ & S~fa~' Use Pi~) ~)No~' Slo~ ~rou~ ~ve!o~t P~~. ~).~ka ~pt. of' Co~t~ Zone-~nsis~~ ~ve~~l ~t~ation · ~r~ ~ nation Date 11/15/83 Pending ..-11/07/83 -' 'P.ending 11/10/83 Pend~ ng 1~ Has any agency denied approval for ~e a~fivity deathbed h~eln or for ~y a~vi~ ~re~y related ~ ~e a~ ' des~i~ herein? . . ; . 14. Remarks or additlonal 6. (cont'd.) ~st~g ~o~d ievel. -~e exca~t~ ~terial, a~~tely 5000 ~ic y~ds pr~ily c~sed of ~at ~d silt, ~11 ~so ~ st~il~ adjac~t' to ~e pi~'~ sho~ ~ ~e at~ch~ ~aw~gs. ~e pad ~11. ~ of s~ch a' ~ic~ess to s~~ ~ l~d ~ ~. ~-~e atoned ~a~gs. ' Su~rt of ~e ~ill~g rig ~11 ~ ac~~'by ~g a ~ sill fo~a-" ~ion, ~i~ ~11 also prev~t ~aw. ~t~g ~ds ~d ~.'~~le ~r~e ,~11 ~e sills to d[s~ute ~ load ~d prev~t ~n~~ation of ~e :~ s~a~ fr~ o~er fl~. ~n ~letion of o~ations ~e pi~ ~ .~e~ ~n~n~ ~11 ~ ~~ill~ wi~ ~at, sil~, ~e v~e~ve mat plac~ Oh top. Drill~g o~atio~, ~cl~g ~iliza~bn-~d d~bilization,{ will re,re appro~t~ly 120 days'.to c~lete.. 'Wat~ for ~e ice pad ~d-~socia~. ice roa~ will be from nearby State approved water sources. - . - . - . - 12. cont' d) -' .' · '" ' ~4)Alaska biv. of Land Temporary'Water 11/18/83' :Pending- ' & Water Mgmt. Use 'Permit .- .... 5)Alaska Oil & Gas '.. ?.er~i."t to-.Drill · '1i/18/83 . ' '' .P~.ding '. Conservation ..' . ' -. .. ConnLission ' -' '.- '~ '- .. , . . 15. Application 'is hereby mazie for a permlt or permit.~; to ;,~:}~orlze the ac'tivit~es described hereln. ! certify that I a~ famili~r wlth the information contained in this z-ppi;cation, and that to ~'%e .best.gl my kriowledge and belief such informatiort Is true, complete, and accurate. I (urther certify that I pos~e~t~,e ~thori~/f/d undertake the proposed ac:tJv~ties. ' ' · . . ... ' o, - .: · The application must be signed by the z;=plicant however, it may be signed by a duly authorized agent Ink, ned in Item 5) if th~s iorm is accompanied by a ~at~-nent by the applicant designating the agent e.m:t agreeing to fumish'upon request, r, upplemental intormation in r, upport o! the applicatioru · 18 U. ~;. C. Sect;on 1001 p~o~;des that: Whoever, in ~ny manner w;thin the jur;.s~ict;o~ of any depart, men! or agenu-'y of The Un;ted States knowingly and williully faisifies, conceals, or covers up by any trick, scheme, or device a mater;al fact or ma~e$ any false, fictitious or fraudulent stmte~nents or representations or makes or uses ;any ~a~.~e ~rriting or document' knowing Sa-ne to contain any false fictitious or frrmdclutent statement or e~try. ~.%all be fined not more tha.-t $10.000 or : ALASKA VICINITY ~P N.P.R.A. - BARRDW VICINITY PROJECT ~ ~VATED V~LU~: 5~OO C.Y. ~TN SL~E P~ LOCATIOn: I~O' F~ ~ l~O' F$~ SEC. 1~, TIB~DW, U.~ STATE ~ AL~KA PURPOSE: OIL EXPL~AT~ 23° PLAN V;[EW - . I DiD 0 I DID SCALE: l' = I00' PROPOSED ARCO BRONTOSAURUS # 1 N. P. t~. A. NOR'r N SLOPE STATE OF ALASKA , TUKr~;~A LEVEL--7 . _, ,~ IO'~ IO' , , . / · ~'-..--~ ~. ~'-O' TO ~'-O' N~N ~ f SECTION A-A TYPICAL.FO~ BURN PIT ALL 5LOPES APPROX. I:1 ~__ tG' /'-- 6' ~IN.---j . . ICE SECTION ALL SLOPES APPROX. 1:! MIN. ALL SLOPES APPROX. N.T. $. 6'MIN. SECT ~ ON D-D · ALL SLOPES APPROX. I:! N. T. S. LEVEL PROPOSED ARCO ERDNq'OSAURUS .~ I N.P.R.A. NO,,,~TH SLOPE BC~DLIIDI-: STATE DF ALASKA 202GBS~ ARCO Alaska, Inc. : i... ~ ~ ~.~., ARCO Explorat,,,..,- Alaska.Ope.rations ..... Post Office Box 100360 i ~' -.~ Anchorage, Alaska 99510 Telephone 907 277 5637 i~! 0'" November 23, 1983 H~D ~R.RY Chief, Regulatory Functions Branch Alaska District, Corps of Engineers P.O. Box 7002 · Anchorage, AK 99510 Attention: Mr. Steve Eckert Dear Mr. Eckert: Re: Application for Section 404 Permit.' Brontosaurus Prospect NPR-A Pursuant to our telephone conversation yesterday please accept this letter and the following information as a supplement to .our above referenced 404 Permit Application. ,' This letter will serve to address the special condition of General Permit %81-II which requires tha~ all pits be rendered impermeable by a means, of permittee's choice, other than existing permafrost. ARCO Alaska, Inc. hereby amends its application for a permit filed on Form EP 1145-2-1 dated November 18, 1983, to add the following: Item 6. After excavating the reserve pit and flare pit to a depth of approximately 6 to 8 'feet both pits will be rendered impermeable with a continuous layer of ice coating the bottom and sides of each pit. The ice layer will be created by spraying water, from the State approved water sources, evenly around the inside of the pits until an impermeable barrier is created. This ice barrier will remain after backfilling which follows completion of' operations. I will direct a copy of this letter to the State Office of Management and Budget for their coastal zone consistency certification review. Mr. Steve Eck.~t Page 2 November 23, 1983 We again appreciate the expedited manner in which you are reviewing this application. If you have any further questions or concerns please do not hesitate to call me at 265-6173 or Steve Gajewski at 265-6156. Our offices will, however, be closed for the Thanksgiving holiday this Thursday and Friday. Very truly yours, Landman JDA:mps cc: Wendy Wolf State Federal Coordinator State of Alaska Office of Management and Budget Pouch AW Juneau, AK 99811 Walakpa Test Well No. 1 uqwuo NO,I No. I BAt~t~OW .,~.' rrowNo 16 So. A'~,~. ,~. .--~... · ~" DEA SE INLET I e No.I SCALE MILES Simp~on No, 2 (" ~' SMITH BAY A DMtRALT Y ~0 S,mO'~on No I ARCO Alaska, Inc. ARCO Expl0'~.;on - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510 Telephone 907 277 5637 November 18, 1983 Alaska Oil and Gas Conservation Commission · 3001 Porcupine Dr. Anchorage, AK 99501 Gentlemen: Re: Brontosaurus No. 1 Permit to Drill Enclosed please find the subject Permit to Drill application. ARCO Alaska, Inc. proposes to drill this exploratory well during this winter's drilling season. Should you have any questions or require additional information, please call me at 265-6156. Sin~rely, ~ Stephen W. Gajewsk~i Landman SWG:mps Enclosure ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany ARCO Alaska, Inc. ARCO Expl0'?sllon - Alaska Operations Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276-1215 December 2, 1983 Mr. Harry Kugler Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Dear Mr. Kugler: Re: Brontosaurus ~1 Permit to Drill Enclosed is a packet of information supplementing our original submittal to your office: 1. Check #547768 for $100.00 2. Packet containing Blowout Preventer specifications and other specifics of our proposed drilling program. We hope this information completes your file, and we apologize for any difficulty associated with our abbre- viated application. If you have any questions or com- ments, please do not hesitate to call me at 265-6156 or Jim Buck at 265-6163. Sincerely, p , Ga~ewski Landman ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfietdCornpany CONFIDENTIAL,, LASKA (:~_ AND GAS CONSERVATION CO~/IlSSION PERMIT TO DRILL 20 AAC 25.005 la. Type of work. DRILL REDRILL DEEPEN lb. Type of well EXPLORATORY I"~ DEVELOPMENT OIL [] DEVELOPMENT GAS [] SERVICE [] STRATIGRAPHIC SINGLE ZONE [] MULTIPLE ZONE 2. Name of operator ARCO Alaska~ Inc: 3. Address P:O= Box lf111360 Anchorage, Alaska 99510 4. Location of well at surface 1090' FWL & 1037' FSL, Sec. 18, T18N, R20W, gmiat At top of proposed producing interval Mer. At total depth Vertical Hole 5. Elevation in feet (indicate KB, DFetc.) I 6. 3j~_S~, ~_ ~'~i Leas sig at_io.n a_nd.%erial no. Grouj/d_~_v_e]~..45' NPR-A ~ale ~31 12. Bond information (see 20 AAC 25.025) Federal Insurance Co. ~ Type State Wide Surety and/or number 8088-26-27 13. Distance a~d direction from nearest tow~ 14. Distance to nearest proDertv or lease line 28 m~ SSW ~f R~rr~w miles 1090 feet 16. Proposed depth (MD & TVD) 17. Number of acres in lease 7500mVD 22890 feet 19. If deviated (see 20 AAC 25.050) N/A ~ KICK OFF POINI feet. MAXIMUM HOLSANGLE o . N lA 10. We~l number Brontos~_l!r~/s No ~ 11. Field and pool 1 Wildcat Amounts500: 000 15. Distance to nearest drilling or completed well N/A ,feet 18. Approximate spud date January ] 0. 3984 ~ psi'g@ ~' Surface 20. Anticipated pressures (see 20AAC25.035(c) (2) BI-{.P .':iq00 psig@6_q00 ft.~I~(TVD) Proposed Casing, Liner and Cementing Program SIZE In. Hole CASING AND LINER Casing Weight Grade I C°upling I 26 20 _ 94 H-40 I BTC I 17-% 13-3/t 72 N-80 I BTCI 12-¼ 9-/51 40 N-801BTCI i 8-½ 7 26 N-80 I BTCI I I SETTING DEPTH QUANTITY OF CEMENT Length MD TOP TVD MD BOTTOM TVD (include stage data) 11 RI, II R!II RIII RIII I Surf I iSurf ,Surf ~6200 ~100 I 12O0O 16500 17500 150 cu. ft. 1400 cu. ft. 650 cu. ft. 200 cu. ft. J . I I 22 Describe proposed program ! · : ARCO Alaska Inc. proposes to drill an exploratory well in She NPR-A to a depth of approximately 7500' TVD, (7500 MD). A 20" 2000 psi l ~iverter system will be used through the 'setting of the surface pipe, A 13-5J ~000 psi BOP stack of the RSRRA configuration W±ll be used for the remainder! ~f the well. Electric logs & coring will be 'donee'acrOss seleCted interVals.I if hydrocarbon zones are 'encounter'ed and warrant testing, those zones maybe ~electively perforated and flow tested through a string of test tubing. All Qncemented annulli within the permafrost interval will be 'left with a non- ~reezing fluid.BaSed on data from offset wells, .~o.abnormal pressures or H2S is anticipated and maximum surface pressure is estimated at 1421 psi with a maximum B~ pressure estimated @ 3500 psi @ 6300' TVD. 23. I hereby certify that the foregoing is true and correct to the best of my knowledge The space below for Commission use DATE CONDITIONS OF APPROVAL Directional Survey required APl number L-lYES ~'NO 50_/~5 -'~...O 0 0 ~ SEE COVER LETTER FOR OTHER REQUIREMENTS Samples required Mud log required [~YES []NO (~'YES []NO Permit number Approval date APPROVED BL ~ ~..,~-, Form 10~01 ,COMMISSIONER by order of the Commission DATE October 5, 1984 Submit in triplicate Rev. 7-1-80 ' CONF DENTIAL ARCO BRONTOSAURUS NO. 1 Drilling Program and Supplementary Information o I'~ 0 ,~- ×E _zo ×~ 1000 2000 1220 3000 4OOO 5000 ...... 4430 6000 ---4830 7000 ---6120 ~PD7500 7500 9 10 11 12 13 MUDWEIGHT (ppg) CONFIDEN'[i L 20" FIGURE 2 2000 psi W. P. Diverter FLOWL [NE 20" 2000 PSI WP ANNULAR PREVENTOR ILLING SPOOL I O · HYDRAUL !C OPERATED BALL VALVES 20" CONDUCTOR PIPE "DE TA IL" CO FIDENTI L 13-5/8" FIGORE 3 5000 psi Wo P. BOP PREVENTOR BLIND RRMS PIPE RRMS DR[LLINO SPOOL PIPE RRMS Casing Size 9-5/8" Hole Size 26" 12-1/4" 8-1/2" Setting De. pth (RKB) 80' 2000' 6500' 6200-7500' TABLE 1 PROPOSED CASING PROGRAM Function Weight, Grade, Connection Conductor Casing 949 H-40 BTC Surface Casing 72~ N-80 BTC Intermediate 40~ N-80 BTC Casing Production Liner 26~ N-80 BTC Est. Top of Cement Surface Surface 4500' 6200' Max. Surface ( Pressure 0 PSI 1316 PSI 1421 PSI 1421 PSI TABLE 2 Interval (feet) 0-2000 2000-6500 6500-7500 Hole Size ( inches ) ESTIMATED MUD USEAGE Hole Vol. Surface Sys. Barite (BBL.) Vol. (BBL.) (100~ sx) Bentonite ( loo# sx) Caustic (5o# sx 17-1/2 600 500 825 220 33 12-1/4 960 500 2050 300 44 8-1/2 550 500 1100 210 32 MINIMUM VOLUMES TO BE MAINTAINED ON LOCATION Interval (feet) 0-2000 2000-6500 6500-7500 Barite Bentonite Caustic L C M (100~ sx) (100# sx) (50~ sx) (50# sx) 1250 330 50 300 3000 450 ,66 300 1650 315 48 300 I. Drilling Program A. Project Description 1. Geologic Objective The Brontosaurus No. 1 is designed to test the hydro- carbon reservoir potential of leases upon Which ARCO was high bidder'in the NPR-A Sale 831. Specifically, this well will be drilled to basement (antiCipated at -~,500 feet subsea depth) to test the potential of the Ivishak and possibly the Lisburne formations. Ivishak sandstone, the primary objective of this prospect, is anticipated to occur at -6,500 feet and perhaps extend to the argillite basement at -7,500 feet. The Lisburne, should it be present at this location, constitutes a secondary objective and may occur between -7,000 feet and -7,500 feet. 2. Estimated Formation Tops Key geologic markers anticipated at this location and their estimated depths include: Torok Gamma Ray/Pebble Shale Kingak Sag River Shub 1 ik (Ivishak) Sadlerochit Lisburne Basement 1,140 Sub Sea 4,3-50 4,750 6,040 6,190 6,500 7,000 7,500 The depth to the base of permafrost at this location, as interpreted from ARCO's seismic data, is 800 feet. 3. Coring, Logging, Testing Programs a. Coring Program Rotary coring of the IviShak and possibly the Lisburne is planned in this well. up to 600 feet of 4-inch core may be cut within the interval between the top of the IVishak and basement. ~' b. Logging Program A suite of electric l°gs consisting of some or all of the following logging devices will be run in open hole prior to the setting of surface, intermediate, and production casing strings. 1. Dual-Induction Laterolog with SP and GR 2. Borehole Compensated Sonic with GR 3. Compensated Formation Density Log and Compensated Neutron Log with GR and Caliper 4. Electromagnetic Propagation Log 5. Sidewall Cores 6.' High Resolution Dipmeter c. Testing Program A well testing program within the objective intervals is planned, contingent upon the demonstrated need to test potentially productive hydrocarbon reservoirs. Data from the electric logs, formation drilling characteristics, and hydrocarbon "shows" will be analyzed and evaluated to determine the necessity of testing. Should flow testing be warranted, the program will consist of isolating the test zone(s) with adequately cemented casing, selectively perforat- ing the interval of interest, and flowing the formation fluids to surface through a string of test tubing. This test program will be designed to ascertain reservoir parameters that will be used to determine the feasibility of further drilling in this prospect. B. Well Design 1. General Design Considerations ' Offsetting well data and velocity analyses from seismic data suggest near-normal pressures through the formations of interest on the Brontosaurus site. Well histories reviewed include those of the Walakpa· 1 and 2, Kuyanak, South Meade, Kugrua, and Peard wells. Of these, only the Peard well drilled the Sadlerochit with the Kingak cased off completely. In this well the Sadlerochit was drilled with 10.4 ppg mud which was subsequently reduced to 9.8 ppg. Maximum mud weight used in this area was 12.2 ppg in the Kugrua well, which was necessary to control tight hole conditions in the Kingak shale. After this problem was corrected mud weight was reduced to 11.8 ppg. - . .... :,.~ ~. . . Thus the most significant difficulty anticipated in drilling the Brontosaurus prospect is the tendency of the Kingak shale'to swell and slough, resulting in tight hole and sticking conditions. This behavior is apparently related to the presence of minor abnormal pore pressure and t~e sensitivity of' this formation to fresh water. Maintenance of an adequately weighted low water-loss mud, careful control of well hydraulics (enhanced by drilling this interval with a 12-1/4 inch bit), and isolating the problem formation with casing at the earliest possible opportunity should combine to minimize the potential for major problems in this drilling program. Mud weights through this shale interval may approach 11.0 ppg, however, after setting casing through this zone, weights of 10.3 to 10.5 ppg are anticipated to adequately control formation pressures. Other drilling related problems such as abnormal temperatures or hydrogen sulfide are not anticipated in this wel 1. No evidence of these hazards has been observed in wells previously drilled in this region Losses of drilling fluids to formations has been a minor problem in some of the area's wells, however, close surveillance of the mud properties and avoidance of excessive weights should prevent or minimize this occurrence. ' " 2.. Casing Design Table 1 outlines the planned casing program for this well. The casing design listed is %he minimum ~required based on the following design factors: a. Collapse: Based on pipe body collapse with a minimum design factor of 1.0. The biaxial effect of tension or compression is included. b. Burst: Based on pipe body internal yield with a minimum design fact6r of 1.1. c. Tension: Based on pipe body yield strength with a minimum -design factor of 1.5. Buoyancy due to running mud weight is considered. Due to availability, higher weights and grades of pipe may be used, but in all cases the physical properties of the actual pipe used will meet or exceed those listed. Maximum anticipated surface pressures for each casing have been calculated. These calculations are based upon the estimated mud weights, pore pressures, and fracture gradients appearing in Figure 1. The 20 inch conductor pipe will permit utilization of a diverter system (with 20 inch nominal, 2,000 psi WP annular BOP) while drilling 17-1/2 inch surface hole to 2,000 feet. Following logging, 13-3/8 inch surface casing will be set at 2,000 feet. A 13-5/8 inch 5,000 psi WP BOP stack will then provide the necessary well control capabilities while drilling to 7,,500 feet TD. A protective string of 9- 5/8 inch casing will be set at 6,500 feet, immediately below the base of the Kingak formation. If the well is to be flow tested, a 7 inch liner will be run from 6,200 feet to 7,500 feet across the Sadlerochit and Lis- burne formations. Ail cementing across the permafrost zone will be done with an Arctic type cement that will allow the cement to set before freezing. Cementing below the permafrost zone Will be done with a class "G" type cement with additives to control water loss and setting time. Ail uncemented annulli in the permafrost zone will- be left with a non-freezing 3 Casing and Formation Leak-off Tests A casing pressure test will be conducted afte~-each casing string has been cemented in place and prior to drilling out below the casing shoe. Minimum test . pressures for each of the respective casing strings will be'as follows: 13-3/8" Surface Casing @ 9_000' : 1000 psi 9-5/8" Intermediate Casing @ 6500' : 1500 psi 7" Production Liner @ 7500' : 1800 psi The shoe joint (s) and float equipment Will be drilled out after the casing has been successfully tgsted and apprOximately 10 feet of new formation. will be drilled below the casing shoe. With the mud properly balanced and conditioned the blow out preventer will be closed around the drill pipe and mud will be slowly pumped down hole at a controlled rate. The pressure imposed-down hole will serve to test the integrity of the cement job around the casing shoe. If the cement seal proves adequate, the test will continue. The pressure will be increased until leak-off occurs or-the formation has been tested to a minimum gradient sufficient to insure adequate control of bottom hole pressures anticipated within the respective, interval to be drilled. 4. Pressure Control Equipment a. Diverter System .~.~.,/ The diverter will consist of a 20 inch 2000 psi annular preventor nippled up~ on a 20 inch 2000 PSi drilling spool. The drilling spool is equipped with two 10 inch hydraulically operated ball valves which open automatically when the annular preventor is closed. While drilling surface hole, the well will not be shut in and no surface pressures are anticipated. · The diverter system will be function tested prior to drilling the 17-1/2- inch hole. A schematic drawing of the diverter system appears in Figure 2. b. BOP Stack A 13-5/8 inch 5000 psi working pressure BOP stack of the RSRRA configuration as shown in Figure 3 will be 'used for the remainder of the well. The stack will be equipped with a 3 inch 5000 psi API choke manifold with 5000 psi choke and kill lines. An accumulator system of sufficient volUme and pressure will be available to provide enough usable fluid volume to close one pipe ram and the annular preventer in the stack plus the volume to open the hydraulic choke line valve. c. Miscellaneous Equipment A minimum of one stand pipe valve, upper kelly valve, lower kelly valve and inside BOP with a working pressure of not less than 5000 psi will be provided. Casing heads and tubing heads will be 13-5/8 inch 5000 psi working pressure. The starting head will be 20 inch 2000 psi working pressure° If this well is flow tested~ a production tree may be used with a rated working pressure of not less.than 5000 psi. d. Testing Ail pressure control equipment will be tested to its rated working pressure with the following exceptions: 1. Diverter System - FUnction test on nipple up 2. Annular Preventer on 13-5/8 - Test to 3000 psi Pressure control equipment will be tested on initial nipple up and once weekly thereafter. Based on anticipated surface pressures, pressure control equipment with a 5000. psi working pressure is sufficient for all well control situations. Due to availability, pressure control equipment with higher rated working pressures may be used. In all cases the equipment will meet or exceed all pressure requirements. 5. Mud System The mud system planned for this well will consist of a fresh water bentonite system'weighted as necessary with barite to control formation pressures. Mud weights are not expected to exceed 11.0 ppg.- Typical additives used in this system to maintain rheology and filtration may include some or all of the following: 1. Viscosifiers a. Bentonite b. Benex c. Synthetic Polymers 2. Weighting Material a. Barium Sulphate · Thinners a. Sodium Acid Pyrophosphate b. Chrome Lignosulfonate 4. Fluid Loss control Agents a. Starch b. Sodium Carboxymethyl Cellulose c. Polyanionic Cellulose 5. Lost Circulation Material a. Cellophane b. Organic Fiber c. Mica d. Calcium Carbonate · Lubricants and Emulsifiers a. Organic Lubricants b. Water Dispersable Asphalt o Other Additives a. Soda Ash b. Aluminum Stearate c. Caustic Soda d. Sodium Bicarbonate e. Detergent f. Defoamer g. Zinc Carbonate Table 2 contains estimates of an~iclpa%ed mud volumes and also specifies minimum volumes of critical mud materials to be maintained on location. Redundant pit level indicators and flow indicators will be provided by the drilling contractor and mud logging contractor. The mud logging contractor will continuously monitor pit volumes, mud returns, pump pressures,, and cuttings gas, in addition to fill-up volumes on trips. 6. Other Considerations a. An operators representative and contractors representative with well control certification will be on location at all times. b. Although H2S is not anticipated, detection of sour gas will be handled by the mud loggers on location and appropriate action will be taken. c. Technology and equipment is available that would allOw the drilling of a relief well even during the summer months. Sufficient high ground located north west of the proposed location is present to allow the building of an insulated pad or a piling type location for relief well purposes. ii . .POINT B~ER0W THIS ~Q o i VICINITY MAP . L~ATION IN SE~ION ~ELL N0. FEOM S~TN LtNE FR0~ ~T L~E I 10~7 ' 1090' STATE ~~E ~OO~lffi~T~ I I 6,18~,758.63 I 590~431.21 . I ZOnE 6 I WELL NO. I LATITUDE LONGITUDE I 70°~'~.435" 157014' 42.574 BRONTOSAURUS PROSPECT LOCATED IN SECTION 18, TI8N, R~, U.M.,AL~ ~CERTIFICATE OF SURVEYOR: I HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAND ~% ~ ~a SURVEYING IN THE STATE OF ALASKA ~D THAT ~F4~V-- ~ [ THAT ALL DIMENSIONS AND OTHER DETAILS ~ ~ · ~~_~ ~'' '~'' ARCO Al ,~ ~ SURVEYED FOR ~,,,~ '~.?~ : aska. Inc,, . I~UE DRAWN ~.P.O. i ,.. o I:~ ~AI'e~ ! ~'I ~ ./ '~.., .~ ~,~ r ./'., ,.~,'~~-' , ~~'~. ~. . ALASKA V]CINITY ~P N.P~R.A, - BARRO~ VICINITY ..... / ~,.. - LOC A T I ON .. , , ;-,~,,-, ._ ..... ... SCALE IN MILES LAT.: 70°54'32. 435" PROPOSED LONG.: 157°14 '42. 574" ';-J .... ~:.~,-; · ..~.~:; ;L..'~. :~;~.:. BRONTOSAURUS NO. ACREAGE OF ZCE PADS & BER~: 2. 5 ACRES ............. -'.. . . .,.~ .., VOLU~ OF Z~ PADS & BER~: 5700 C.Y. N.P.R.A. :EXCAVATED ACREAGE: O. 5 ACRES NORTH SLOPE BOROUGH EXCAVATED VOLU~: 5800 C.Y. STATE OF ALASKA PAD LOCATION: 1090' F~ & 1040' FSL, SEC. 18, TISN-R2OW, U.M. PURPOSE: O~L EXPLORATION ADJACENT LAND O~ER: B.L.M. ~]~ ~w ~ ~ ]~ DATUM: M.S.L. 45' ELEV. ~--~ ~3 ~ NOV. 202G830001o FLARE PIT ~ 23° --SPOIL STOCKPILE ;506' k 250' .'RESERVE PIT SPOIL STOCKPILE 250' PLAN .VIEW I O0 0 I O0 · SCALE: i" = I00' PROPOSED ARCO BRONTOSAURUS #1 N.'P. R. A. NORTH SLOPE BOROUGH STATE 'OF ALASKA APPL]C.,ATIO~I BY~ ARCO ~ ]NC. s~.~2c~3__ D~'~E, NOV. ' 83 _ 2026830002 · TUNDRA LEVEL---7 , , I0'~, ~ / / SECTION A-A TYPICAL FOR BURN PIT ALL SLOPES APPROX, N, T, S, · , TUNDRA LEVEL 6" MIN. I SEC'FI ON B-B ALL SLOPES APPROX. !:i INL T, S, ICE MIN. 300' -0" SECT I ON C-C ALL SLOPES APPROX. I:1 N. T. S. 6"MIN. _L ,5_o'-o_-, = 25o'-o- ~, ,_ 6"-o" · -0" T,O 8"-0" SECTION D-D ALL SLOPES APPROX. I:1 N. T. S. PROPOSED ARCO BRONTOSAURUS .¢/- I N. P. R. A. NORTH SLOPE BOROUGH STATE OF ALASKA s~.3 ~F 3 ~,,,'m, NOV. ' 83 2026830003 · P i o C:~ 0 oq~~ WATER DEPTH IN FEET- TYPICAL D ICE ROAD ontosourus No. ~ker El. 45.7: 5 I .% WATER SOURCE No. I # 6 Ig~ ]64. ] Lol q 16o ~ 0 BEC. IB-TIBN~ R2OW~ U.M. 44. Iel# ' a37'11o4o, NCO # I MARKER CERTIFICATE OF SURVEYOR I hureb/ certify that I em prnpeHy reglBfured end Ilclntld Io precllce lend iur¥~Jng In the Slote of AIo~kO ond thor IMi plot rlpreteflll 0 IQCOIIQn IUrffy mode by ~ or under ~ iu~ryitlofl, end thor oil dlmtnllo~l end ofh~ . TOP RIG SUB'BASE AT MONITOR POINT dj I · 102.78 TOP RIO SUB-BASE AT MONITOR POINT I~ 2 ' 102.9t TOPRIG SUB-BASE AT MONITOR POINT ~P $ ' 102,BB NOTE: LOCATION WITHIN SECTION ~, ORIGIN Gle BEARING FOR 0YRO MARKER FROM F, ROBERT BELL ~ ASSOC. FIEI. O WORK FOR UYRO MARKER I~ ASBUILT BY R,C, BAVIS 8~ ASSOC, nPd;J ! I ',.:..:,: .~..','.;...~i~;..~:.:,, "~,.'i.L ,: ?,? ...:.::,.'. "/ ~": ;'.':".:.:- ~;" 4" ",: 4:,,4~,, .~!~ · '".," :,, ' ','.~';',...'.".: "X'.'.'~-.,~:: '~ :/. ' ..... ;".~... .'. ";~" ' ~' ,'~L~'.~ . .,:.. ,. .... ;,.,.. ...... , ~,~,,~,~' · , ~,~ ,,o,..,,/, :.,, ,i,.. ...... .. ~1. '.':-- . , ,'~:,,~,,& , .,~., . .... "!" '" '"": ;'" .:'i.': '":", ': L' ~:.-:-' ~ :' . ;., .... · ~ \f ' F' ' , .'..' ',:, ' .'.'-~_.-'-"~:- ..: :.,-,' / ,~10' n ~ '~ · .,'., . ' ,..,:..~::- :. -.- _ _ -- '_ - ~ ~"' ' // ,I1 ~ ,t,~" ' ~; ....~ , '' ~ ..J . .,4, w, . / ....,...... ,~-, . ,,~ .. ~,:~: ..,. , :.~. ~;-' "'" I C E PA D " " ~ NATUnAL OROUHD ~ ~4,0'~ ............... ~,1.~ ~*,~" I II d, l,,~ ~. :~ ' .04' FUlL CONTNO~ PT. IL ici iii.ii OIL'tel II ORIGINAL ,' ' / · o*.Ie I~l RESERVE PIT / .[ · ~ ' ' X~ '~ ' ' ~ ' . ~ . ,. BURN P T ', nco dt I -'-~ mooNTnOL ii. Joe ii / ' pT. · f . TYPICAL PROFILE I ARCO Alaska Ir ARCO Explorat ie ASBUILT BRONTOSAURUS LOCATED IN IgC. II, r. ll#. R. IQI. /mep,~to IY R.C. DAVIS BASSO II0?) .., K~RUARy II. rge~ I IClll : ,,/" 1; ' , :, III ANO ¢&II'P It¥~vllO A IPQIL piLl II P~-AClr &pRIL ASBUIL · , 8RoNTOSAURU CONTENTS PROPOSED DRILLING LOCATION AOGCC Bond Figures & Tables Drilling Prognosis Well Design Appendix "A" - Geotechnical Investigation Appendix "B" - Drilling Vessel Description 1 _2 3-7 8-10 11-15 UTM 5 . 326O95 , ADI. ADL 326104 19 20 21 LATITUDE-' 61~'5'52. 3"N LONGITUDE: 150~'23';~2.75'W 29 x= 640, s'ts. ~ M Y= 6,, 776, 285.8 M 30 ~ 28 O, , , 326096 O5 COOK INLET ARCO FIRE ISLAND NO. ! PRIMARY DRILLING LOCATION STATE SALE #33 , , APPL! CAT ! ON BY : ARCO ALASKA INC. DATE : DECEIVER 1983 2O293300O I ,~]-A1 P_ (DP ALA~I~A ( ALASKA L..~_ AND GAS CONSERVATION~.,...~JlMISSION BOND BOND NUMBER 8088-26-26 PENAL SUM $ 200, O00. OO KNOW ALL MEN BY THESE PRESENTS, of the City of .... ' .... ,/~.~.Q~lQ.~..ag..e. ............................................... , State of ....... ..A...~..~..~..~...~. .................................................................... of ..... ~..~.~.~Q~.~.~..?~.e~.e..~.~.e.~.w.~.~.~.~.~..~.~`~..~.~.~t ...... as surety, authorized to do business in the State of Alaska, are held firmly bound unto the Alaska Oil and Gas Conservation Commission in the penal sum as indicated, lawful money of the United States, for which payment, wel! and truly to be made, we bind ourselves and each of us, and each of our heirs, executors, admin- istrators or successors, and as~.igns jointly and severally, firmly by these presents. Whereas the above bounden principal proposes to engage in the drilling, producing and operating of a well or we'lls for oil and/or gas, 'l or proposes to drill holes for stratigraphic information in and upon the lands situated within the State of Alaska., at a location de- l scribed as follows: [i~' . !slNGLE wELL BOND-minimum penal sum $100'000 · r Unit or Lease Name Well Number Surface Well Location-Sec., Twp., Rng. and Mer. Area of State ! ' ' LX~ IB LAN KET BOND-minimum penal sum S200'000 Any and all wells drilled and operated by the principal in the State of Alaska. NOW, THEREFORE, the above bounden principal shall comply with all of the provisions of the laws of the State of Alaska and the rules, regulations and orders of the Alaska Oil and Gas Conservation Commission, and file with the Alaska Oil a. nd. Gas Conservation Commission all notices and records required by said Commission. . . : _. _ . This obligation shall remain in full force and effect until released by the Alaska Oil and Gas Conservation Commission at'the request of Principal or Surety .... - Witness our hands and seals this ARCO~~ka .... ..~.~.~..~.. ........ day of...~...~'....~...~....~...~.. ~/. .............. 19,..~....~...~. (Principal) ................ .. Paul B. ~Norg~ard~.~ice-~resident Witness our hands and seals this FEDERAL INSURANCE COMPANY ..................... . 2 9t b .........day of ....~..~..¢..~.~b.e,~. .......... 9..~.0 ..... (Surety) .... :'. ,..: ..... ce L. Buswell, Attorney-in-Fac Approved: .~7..'[ii...~ .................................. Date: /..'....~...'...~./... (requires two signatures) ALASKA O,,,.~.ND GAS CONSERVATION COMMISSION Countersigned: for Alaska (R~jdent Agent-, if nec~ssary~ ~ - John C. Lindgren, Power Attorney for Victor E. ~'d~t~ d~llcat~L%~-Adrm will be returned 0 o FIGURE 1 lO' 2O FIGURE ~, SO 0 psi W. P. Diverter ~ I:'L?VL INE . · DRILLING RISER ~0' sOO PS! WP ANNULAR PREVENTOR .C~--IO' DIVERTER LINE -- DR ILL lNG sPOOL 30" ;ONDUC'i'OR PIPE "DETAIL" PIGURE-3 18-3/4" 3000 psi W.P. BOP FIGURE t4 13-5/8" ~000 psi W. P. BOP PREVEN'I'OR PIPE RR~S TABLE 1 PROPOSED CASING PROGRAM Casing Size 30" Hole Size Driven Setting Depth (RKB) 310' Weight, Grade Function Connection Conductor 310~ x-52 Welded Casing Maximum Est. Top. Surface of Cement Pressure N/A 0 psi 20" 13-3/8" 26" 1660' 7460' Surface 1339 K-55 DrilQuip Casing Quik Thread Protective 68~ N-80 BTC Casing Returns to 1008 psi Sur face, wash Annulus to ML 5500' 3180 psi 9-5/8" 7160'-11160' Production 53.5~ S-95 Test Liner BTC 7160' 3180 psi ARCO ALASKA, INC. Fire Island #1 Drilling Prognosis Name: TD: Objective: Location: Water Depth: Rig: Elevation: Casing Depths: Estimated Forma- tion Tops: Fire Island 11,000' BML This well will be drilled as a straight hole to 11,000' TD to test the lower Tyonek sands, the Hemlock Formation, and the Cretacious Matanuska Formation sandstones. 1150' FWL and 1300' FSL, SWC, Sec~ 29, T12N R6W, S.M. Upper Cook Inlet 42 ' (MLLW) Suitable Jack-up (not contracted at this time ) Ail depths are RKB unless otherwise noted RKB assumed as 120' above MLLW 30" (Driven) 310' 20" 1660 ' 13-3/8" 7460 ' 9-5/8" 11160 ' Total Depth 11160' Note: Casing depths may be adjusted as hole conditions and/or formation tops dictate. Sterling 2595 ' Beluga 7111 ' Tyonek 7371' Hemlock 9920' West Fore land 10370' Cretaceous 10698' Mud Program: 26" Hole to 1690' - Drill with seawater. Sweep hole with 50 BBL viscous mud pill every connection or as conditions dictate. Fill hole with viscous mud prior to running 20" casing. 17-1/2" Hole to 7490' - Drill out of 20" shoe with freshwater low solids gel mud. Control fluid loss to less than 20 cc. 12-1/4" Hole to 11160' - Change mud system over to 3% KCL mud system to drill through prospective intervals from 13-3/8" shoe to TD. KCL mud will control clay swelling in formation. Mud weight will be determined by hole conditions and pore pressure. Weights in excess of 12-13 ppg are not anticipated. Samples: Mud Logging: Cuttings samples will be collected every 10 feet or as instructed by wellsite geologist. A complete computerized logging unit manned by sample catchers and logging technicians 24-hours a day will be used from 30" casing shoe to TD. Logging Program: Run 1 2 3- Interval 1660'-310' 7460"-1660' 11,160'-7460' Hole Size 17-1/2" 17-1/2" 12-1/4" DIL/SFL/SP/GR X X X LDT/CNL/NGT X X X SHDT * X X EPT * * * DIL/MSL/SP/GR X TEMP * * X VSP X SWC * X BGT * LSS/GR * * * RFT * X-Required *-Optional Coring Program: Surveys: Test Program: Conventional Cores 2-4 60 ft. cores in the Tyonek Formation 1-3 60 ft. cores in the Hemlock Formation 1 60 ft. core in the West Foreland Formation 1-60 ft. core in the Matanuska Formation The wellsite geologist may call for cores when in the objective formations, or whenever necessary to evaluate well potential. Sidewall Cores Up to 200 sidewall cores may be called for in the well. These would be intended for: (1) Evaluation of reservoir properties and hydrocarbon potential. These will be shot in the sands or other possible reservoirs (2) Paly/Paleo Run a single shot survey at 500' intervals or every bit run, whichever is the shorter interval. This well is not to be intention- ally deviated (vertical hole). A Well testing program within the objective intervals is planned, contingent upon the demonstrated need to test potentially productive hydrocarbon reservoirs. Data from electric logs, drilling characteris- tics, and hydrocarbon "shows" will be analyzed and evaluated to determine the necessity of testing. Should flow testing be warranted, the pro- gram will consist of isolating the test zone (s) with adequately cemented casing, selectively perforating the interval of interest, and flowing the formation fluids to surface through a string of test tubing. It is anticipated that up to three (3) flow tests may be conducted on this well. 10 Well Design Fire Island 1. General Design Considera%ions Offset well data and velocity analyses from seismic data indicate normal pressures from mud~ line to approximately 8000' ss. At this point formation pressures are expected to increase gradually to 11.5 ppg EMW at TD of 11,000'. This pressure increase is fairly small in magnitude and is not expected to cause any problems. (See Figure 1). The major difficulty expected is swelling clays and sloughing coal streaks, resulting in tight hole and sticking. Coal is expected intermittently throughout the well and sloughing will be controlled by keeping annular velocities in the laminar regime, (where practical), by additions of Soltex to the mud, and to a slight extent by increasing the mud weight. Swelling clays are expected throughout the objective formations. Changing to a KCL mud system at the top of the Tyonek formation is planned to control the sensitivity of these clays to fresh water and minimize the swelling° Other drilling related problems such as abnormal temperatures or Hydrogen Sulfide are not anticipated in this well o Although H2S is not anticipated, detection of such will be handled by the mud loggers and the rig contractor. Sensors will be placed at the shale shakers and bell nipple with audio and visual alarms. In addition a "mud duck" will be placed in the possum belly to detect gas entrained in the mud. 2. Casing Design Table 1 outlines the planned casing program for this wello The casing is designed to meet or exceed all conditions expected while drilling and testing and is based on the following design factors: a. Collapse: Based on pipe body collapse with a minimum design factor of 1.0. The effect of tension or compression on collapse strength is included; b. Burst: Based on pipe body internal yield with a minimum design factor of 1.1. For design purposes a worst case used for burst is a full gas column to surface for casing set above 4000' and an adjusted .. ~gas column (partial evacuation) for casing set below 4000'; c. Tension: Based on pipe body yield strength with a minimum design factor 1.5 and joint (connection) yield strength with a minimum design factor of 1.8. Bouyancy due to running mud weight is considered. Due to availability, different weights and grades of pipe may be used, but in all cases will meet or exceed the properties of the pipe listed. Maximum anticipated surface pressures for each casing have been calculated. These calculations are based upon the estimated mud weights, pore pressures and fracture gradients appearing in Figure 1. Ail cementing will be done using a class "G" type cement with appropriate additives to control water loss, friction and setting time. Casing shoes will not be drilled out until a minimum compressive strength of 300 psi at bottom hole conditions has been attained according to the manufacturers cement strength tables. 3. Casing and Formation Leak-off Tests A casing pressure test will be conducted after each casing string has been cemented in place and prior to drilling out the casing shoe. Minimum test pressures for each string will be as follows: 20" Surface Casing - 1500 psi 13-3/8" Protective Casing - 1500 psi 9-5/8" Production Liner - 1500 psi The shoe joint(s) and float equipment will be drilled out after the casing has been successfully tested and approxi- mately 10 feet of new formation will be drilled below the casing shoe. With the mud properly balanced and conditioned the blowout preventer will be closed around the drill pipe and mud pumped slowly down hole at approximately 3/4 BPM. The pressure imposed downhole will serve to test the cement job around the casing shoe. If the cement job proves adequate, the test will continue. The pressure will be increased until leak-off occurs or the formation has been tested to a minimum gradient sufficient to insure adequate control of bottom hole pressures anticipated within the next interval to be drilled. Anticipated fracture (leak-off) gradients are as follows: 20" Shoe @ 1660' RKB - 13 ppg EMW 13-3/8" Shoe @ 7460' RKB - 16.7 ppg EMW 4. Pressure qontrol Equipment After setting 30" conductor pipe, a 29-1/2" or 30" diverter system (with 29-1/2" or 30" nominal, 500 psi WP annular BOP) will be used while drilling 26" surface hole to 1660 feet. After setting 20" surface casing, an 18-3/4" or larger 3000 psi WP SRBA stack will be installed to provide necessary well control and bit clearance while drilling 17-1/2" hole to 7460'.' After setting 13-3/8" protective casing, a 13-5/8" or larger 10000 psi WP RSR~A stack will be installed for well control while drilling 12-1/4" hole to 11160' TD. If the well is to be flow tested, a 9-5/8" liner will be run from 7160'-11160'. Each of the above systems is described below. a. pive~ter.System The diverter will consist of a 29-1/2" or 30" 500 psi annular preventer nippled up on a 29-1/2" or 30" 500 psi drilling spool. The drilling spool will be equipped with two (2) minimum 6" hydraulically operated ball valves. While drilling 26" surface hole, the well will not be shut-in, only diverted, if required. The diverter system will be function tested prior to drilling the 17-1/2" pilot hole and once each week thereafter. A schematic diagram of the diverter system is shown in Figure 2. b. BOP Stack b (1) 18-3/4" or 21" 3000 psi WP Stack An 18-3/4" or larger 3000 psi WP BOP stack of the SRBA configuration as shown in Figure 3 will be used while drilling 17-1/2" hole for 13-3/8" casing. The stack will be connected to the rigs 10000 psi WP choke manifold. An accumulator system of sufficient volume and pressure will be used to provide 1.5 times the necessary fluid to close all preventers while maintaining 200 psi above precharge pressure. A backup air-operated system will also be provided. b (2) 13-5/8" or larger 10000 PSi..WP .S. tac. k'- A 13-5/8" or larger 10000 psi WP BOP stack of the RSRBA configuration as shown in Figure 4 will be used for the remainder of the well. The stack will be '~ connected to the same choke manifold and accumulator ~ ..~SYstem as above. '?' Note: The exact size and pressure rating of the BOPE /~ will be known when the rig is contracted. In all · cases the equipment will meet or exceed all pressure r equ ir ement s. 13 c. Choke Manifold The choke manifold will be minimum two-inch with at least one (1) remote operated choke. d. Miscella. neo_us Equi. pment A minimum of one stand pipe valve, upper kelly valve, lower kelly valve, inside BOP and T1W valve will be provided. Casing and tubing heads will be 5000 psi WP 13-5/8" minimum. The starting head will be 20" 2000 psi WP. A kill line and choke line will be connected to all drilling spools and a fill-up line will be provided° In addition to the driller's BOP control console, at least one remote control station will be provided. e. Testing Ail pressure control equipment will be tested to it's rated working pressure or to the maximum surface pressure anticipated with the following exceptions: 1. Diverter System - Function test on nipple up and once each week thereafter. 2. Annular Preventers- Pressure test to 50% of rated pressure or maximum surface pressure, whichever is higher. BOP tests will be performed before drilling out casing shoes, following operations which require breaking a pressure seal, and once each week. 5. Drilling Vessel A suitable jack-up drilling rig with specifications similiar to the "Key Singapore", owned by Keydril Company, will be used to drill this well. A detailed description of equipments and characteristics of this vessel is attached as Appendix "B". 6. Geotechnical Program A site survey was conducted at the proposed location in late October-early November, 1983. Results of this survey (shallow seismic and coring) are attached as Appendix "A". The important considerations to come out of the survey are that; (1) no shallow hazards were detected in the area and (2) soil conditions are adequate for jack-up rig footing. 14 7. Discharges The discharge of drilled cuttings and small quantities of mud will be similiar in quality and quantity to typical platform rig operations of the Cook Inlet. Sewages will be treated by the rig's sewage treatment unit before discharge. And oil- water separator skimming tank will prevent the discharge of oily fluids. No hydrocarbons will be used in the mud system. All discharges will be in accordance with the National Pollutant Discharge Elimination System (NPDES) and applicable State of Alaska permits, which are currently being applied for. 8. Support Operations A. Base Facilities The main supply points for drilling materials, fuel and water will be the port of Anchorage and/or Rig Tenders Dock at Kenai. B. Transportation One seagoing type supply vessel will be used to transport drilling materials and supplies to the rig. A contract helicopter will transport personnel, foodstuffs and lightweight equipment between the rig and Anchorage airport. C. Communications Primary communications between the rig and Anchorage will be via microwave telephone. Workboat, helicop- ter, rig and shorebases will also be equipped with VHF radios. 15 FIRE ARCO ALASKA, INC. ISLAND GEOTECHNICAL PROGRAM UPPER COOK INLET, ALASKA Submitted by: M¢CLELLAND-EBA, INC. ANCHORAGE, ALASKA McClelland-EBA. inc. CONTENTS Page SUMMARY .................................................. INTRODUCTION Project Description ................................... 1 Purposes of Study ..................................... 1 ' 2 Report Format ......................................... FIELD INVESTIGATION ...................................... 3 Drilling Methods ...................................... 3 Sampling Methods ...................................... 4 Positioning ........................................... 4 Water Depths and Current Velocities ................... 5 GEOLOGIC CONDITIONS ...................................... 6 Phys'iography .......................................... 6 Geologic Setting ...................................... 7 Structure and Setsmicity~ ............................. 8 Site Conditions ....................................... 9 FIELD AND LABORATORY TESTING ............................ i0 SOIL PROPERTIES ......................................... 11 JACK-UP RIG OPERATIONS Scour Potential ...................................... 13 Currents and Scour in Upper Cook Inlet ............. 14 Soil Susceptibility .................. ~ ............. 14 Spud Can Characteristics ........................... 15 Need for Scour Protection ............................ 15 Liquefaction Potential ............................... 16 JACK-UP RIG FOOTING PERFORMANCE Description of Rigs .................................. 16 Design Parameters .................................... 17 Expected Footing Penetration ......................... 18 CONDUCTOR INSTALLATION CONSIDERATIONS Conductor Installation General ............................................ 18 Site-Specific ...................................... 19 Drlvablltty Analysis ................................. 20 Axial Pile Load Analysis Method of Analysis ................................. 21 Results of Analysis ................................ 22 CONCLUSIONS AND RECOMMENDATIONS ......................... 22 REFERENCES .............................................. 24 McClelland-EBA, inc. ILLUSTRATIONS Plate SITE LOCATION MAP ........................................ 1 SITE PLAN ................................................ 2 BOREHOLE LOG AND LABORATORY TEST RESULTS ............... 3 and 4 UNIFIED SOIL CLASSIFICATION CHART ........................ 5 OFFSHORE OPERATIONS ...................................... 6 AS-DRILLED LOCATIONS AND CONTROL SURVEY COORDINATES ...... 7 OBSERVED TIDES AND CURRENTS .............................. 8 CURRENT METER AND ECHO SOUNDER ........................... 9 REGIONAL GEOLOGY ........................................ 10 NUMBER OF TESTS ......................................... 1I GRAIN SIZE PROFILE ...................................... 12 DESIGN PARAMETERS ....................................... 13 SCOUR POTENTIAL VS BOTTOM CURRENTS ...................... 14 LEG LOADS AND FOOTING DIMENSIONS KEY SINGAPORE ...................................... 15 GLOMAR MAIN PASS ................................... 16 ULTIMATE LEG LOAD VS TIP PENETRATION KEY SINGAPORE ...................................... 17 GLOMAR MAIN PASS ................................... 18 UNIT END BEARING ........................................ 1 9 UNIT SKIN FRICTION ...................................... 2O SOIL RESISTANCE TO 30-IN-DIAMETER 20-IN-DIAMETER DRIVING CURVES CONDUCTOR PIPE CONDUCTOR PIPE PILE ................. 21 PILE ................. 22 McClelland-EBA, inc. ULTIMATE PILE CAPACITY CURVES 30-IN-DIAMETER CONDUCTOR 20-IN-DIAMETER CONDUCTOR PIPE PIPE PILE ................. 23 PILE ................. 24 APPENDIX A DAILY SUMMARY OF FIELD OPERATIONS APPEND.IX B LABORATORY TESTING PROGRAM APPENDIX C ENGINEERING ANALYSES McClelland-EBA, inc. SUMMARY McClelland-EBA, Inc. recently conducted a geotechnical investigation for ARCO Alaska, Inc. in upper Cook Inlet, Alaska. The investigation consisted of drilling one soil boring, ko refusal at 88 ft and two soil borings to 20 ft penetration. At the site, low water depth measured during the investigation was 49.0 ft. Field and laboratory tests were performed om samples recovered from the borings. Engineering analyses were made from the field and laboratory results to develop recommendations for Jack-up rig operations and conductor installation. The seafloor topography of upper Cook Inlet is quite irregular with variations in micro-relief as great as I00 ft, controlled primarily by seafloor currents. The seafloor condi- tions at the site were relatively flat. The soil conditions consisted of a very dense sandy gravel overlying a very dense silty sand. Potential for seafloor scour due to storm and non-storm related currents is moderate tn the dense soils at the jack-up site. Scour must be considered in design of any bottom-seated exploration structure. Liquefaction potential of the seafloor sediments is not expected to be a problem for the brief duration of exploration activities. However, liquefaction should be evaluated for permanent structures. In addition, it should be noted that ARCO's proposed site is located in an area of seismic risk and we recommend a setsmicity study for permanent struc The upper 15 ft, consisting of very dense gravelly silty sands, will probably be the critical zone for Jack-up rig operations. We anticipate minimal rig footing penetrations in the very dense soils. An important factor effecting Jack-up rig operations in upper Cook Inlet is scour. A rig should be selected to achieve the deepest penetration possi'ble to reduce McClelland-EBA, inc. the effects of scour on footing performance. It would be prudent to provide scour protection such as placement of sandbags. Axial load capacity information has been developed for 20-in and 30-in diameter pipes for use as conductor~. Soil resistance to driving curves hawe also been presented. A .hammer with a rated energy of around 80,000 ft-lbs/stroke ~should be sufficient to drive the conductors to 70-ft However, driving beyond 70-ft penetration should carefully and blow counts should not exceed 200 avoid damage to the conductor tip. penetration° 'be monitored blows/ft to McCielland-EBA, inc. Page INTRODUCTION Project Description ARCO Alaska is planning to drill an exploratory well near Fire Island in upper Cook Inlet, Alaska with a mobile jack-bp rig. McClelland-EBA, Inc. conducted a geotechnical site in- vestigation at ARCO's proposed well location in upper Cook Inlet to determine soil and foundation conditons relevant to jack-up operations. The investigation consisted of one soll boring to refusal (88-ft penetration), two additional borings to 20 ft., and current and water depth measurements. A site location map and site plan are presented on Plates 1 and 2. Purposes of Study The purposes of this study were as follows: 1) To obtain geotechnical information to assess the adequacy of sea floor conditons for jack-up rig operations, and, 2) To estimate the soil resistance to driving and axial load capacity for the conductor pipes and provide recommendations for conductor installation. To accomplish these purposes, this study was conducted in the following phases: 1) Geologic setting of the project was examined and soil borings were drilled at the proposed well site to explore soil stratigraphy and to obtain soil samples for laboratory tests, 2 Fi eld and laboratory tests were performed to determine' pertinent index and engineering properties of t h'e~- foundation materials, and, 3) An engineering review of all field and laboratory data was conducted to develop conclusions and recommendations concerning jack-up rig operations and conductor pile McClelland-EBA, inc. Page 2 installation at the site. McClelland-EBA, Inc. performed these services in a manner consistent with that level of skill ordinarily excercise'd by members of the profession currently practicing under simillar conditions. No warranty, expressed or implied, i~ made. This report is intended for use only in accordance with the purposes of .t'.he study described above. During our services we have consulted with M:ro DoMo Stone of ARCO Alaska. Report' Format The initial sections of this report contain descriptions of the field and laboratory phases of this study, followed by a generalized description of area geology, seismlctty and soil stratigraphy. Detailed descriptions of soil properties are also included, along with parameters selected for design. Evalua- tions of jack-up rig performance are presented together with conductor installation consLderations. Boring logs, illustra- tions of pertinent soil characteristics and design data are presented in the Illustrations section following the text. A summary of field operations is presented in Appendix Ao Details of the laboratory testing program and all laboratory test data are presented in Appendix B. Details of the engineering analyses are described in Appendix C. References cited in the text are also included at the end of the report text. McCleiland-EBA, inc. FIELD INVESTIGATION Page 3 McClelland-EBA, Inc. drilled three (3) offshore soil borings, two borings to 20 ft and one boring to refusal at 88 ft, at the Fire Island well site in Upper Cook Inlet° The soil borings have been combined, and a composite stratigraphy called Boring 1 is presented on Plates 3 and .4. The Unified Soll Classification System was used to classify the samples and is presented in chart form on Plate 5. The drilling was accomplis~ bed by using a track mounted AP 1000 Hammer (Becker) drill onboard a 140 x 40 ft shallow draft barge, Plate 6o The field investigation began on November 11, 1983, and was completed on November 15, 1983. An operational summary has been presented in Appendix A. The shore .base for this operation was the McClelland-EBA, Inc. office in Anchorage, Alaska. Radio commun- ication was maintained during the entire field investigation. Personnel involved in the drilling and sampling operations included an engineering geologist, a soil technician, drilling supervisor, a driller, and two drillers helpers (roughnecks). Drilling Methods Drilling services were provided by Denali Drilling of Anchorage, Alaska. The borings were drilled with an AP 1000 Hammer (Becker) Drill through a 48-in moonpool in the center of Pickworth and Associates barge, the Tongass 100. The initial two borings were attempted by using reverse circulation of air and water. This technique met with difficulties due to sloug- hing and heaving of the sands encountered in the upper 20 ft and both borings were terminated at 20 ft. Rotary wash techniques were then employed to advance the third boring to refusal at 88 ft. The 5-1/2 ~nch OD hammer pipe was used as a casing for the rotary wash operation and was advanced by a Ltnkbelt 180 Speeder diesel hammer rated at 8,100 it-lbs/blow. Blow counts have been presented on the boring log, Plates 3 and 4. McClelland-EBA, inc. Page Sampling Methods Soil samples were generally obtained in a semi-continuous manner to 20 ft and then at strata changes to the final depth. In granular material, sampling was accomplished by alternating a standard 2.0-in OD, 1.4-in ID split spoon (SPT) driven by a 140 lb safety hammer and a 3.0-tm OD, 2.43-tn ID split 'spoon driven by a 340 lb safety hammer.. The split spoon samples were advanced by free falling the safety hammers approximately 30-in. The blows required to advance the samples 12 inches were recorded and are presented on the boring log. Positioning Positioning services were provided by Besse, Epps and Potts of Anchorage, Alaska. The positioning was accomplished by using a Motorola Mini Ranger Mark III. This system is configured in the 40 nautical mile range.mode with multi-user 16 code capabil- ities and an accuracy of +2 meters. The equipment used con- ststed of a range console mounted in the tug Alaska II and three remote reference stations. The primary site location was provided by ARCO in their _ letter to McClelland-EBA dated November 10, 1983. The location was presented as 1150' FWL and 1300' FSL, Sec. 29, T12N, R6W, SM, Cook Inlet. The borehole location was pre-plotted from the coordinates provided by ARCO and ranges computed from estab- lished geodetic benchmarks. The site location was established in the field by triangulation between the remote reference stations placed at the above mentioned benchmarks. As-drilled coordinates of the borings and coordinates of the benchmarks are presented on Plate 7. The positioning of the barge was accomplished at the boring site by dropping a marker buoy. The barge was then anchored~:. ~ using a slx-point anchor spread set by the tug, Pacific Win~d'' The barge was adjusted on to location bY using the anch. o~ winches. The six 5000 lb anchors were necessary to hold tTM McClelland-EBA, inc. Page 5 . . barge on position in the strong currents of the upper Cook Inlet. Water Depths and Current Velocities Water depths were carefully measured prior to and during the soil boring. The water depth was measured by the following methods: 1) A Raytheon echo-sounder producing a continuous strip chart record of the water depths during the drilling .operations. 2) Length of drill pipe required to touch the seafloor from the deck. This depth at low water slack was noted and changes in pipe length were recorded during subsequent tidal variations. Low water slack time was noted when bottom current velocities held steady between 0.0 and 0.5 knots and coincided with published low water time. The sample depths could then be accurately determined. This task was simplified as the Becker hammer pipe remained in contact with the bottom of the borehole and was only pulled back at completion of the drilling. Water depths were recorded continuously during the drilling program. Low water depth measured during the drilling opera- tions was 49 ft. Mean lower Iow water (MLLW) depths reported by EG & G in their geophysical program ranged from 45.0 ft to 50.0 ft in the study area around the well site. Tide and current velocity data obtained during the geotechnical investigation are presented on Plate 8. During our site investigation bottom current velocities were monitored. The current velocities were measured by using a Oceanic Model 2035 current meter. The current meter was placed 10 ft off the bottom to avoid the influence of possible bottom undulations. To compensate for tide changes a double anchor McCielland-EBA, inc. Page 6 weight system was used, Plate 9. Bottom current velocities ranged between 0.5 and 2.3 knots during our investigation° GEOLOGIC CONDITIONS This section is intended only as a generalized background discussion of the geologic conditions of Cook Inlet. However, McCl'elland-EBA is capable of performing a geologic synthesis of the area if requested by ARCO Alaska. The information presented here was developed from our understanding of the area conditions and from .review of available literature. Phys~ ography Cook Inlet and its extensions, Turnagain Arm and Knik Arm, form a major marine reentrant of the South Central Alaska coast line. Cook Inlet is a 190 mile long basin, a topographical expression of a structual trough bounded by mountain ranges. The Cook Inlet region can be subdivided into four gross natural subunits: 1) lower Cook Inlet; 2) upper Cook Inlet; North of Kalgtn Island at the confluence of the Susitna rivers and Knik and Turnagain Arms; 3) Kntk Arm; 4) Turnagafn Arm. ARCO's proposed drilling site is located in Upper Cook Inlet. Mean lower low water (MLLW) depths range from 0 ft in upper Cook Inlet, Turnagain and Kntk Arm to approximately 300.0 ft in lower Cook Inlet. Cook Inlet experiences tide variations as great as 45 ft. The large tidal variances result in strong cur- rents in Cook Inlet with observed surface velocities ranging from 6.0 knots to 8.5 knots and bottom velocities from 0.5 knots to 2.5 knots in the Inlet (Bouma, et al, 1978). The seafloor of Cook Inlet is quite irregular. This is' primarily due to high current velocities and geologic origin. Irregulart~es such as sand waves, boulders, scour, trenches, and other current features exhibit changes of local relief in excess of 100 ft. Sand waves are a prominent feature in Lower and McClellancl-EBA, inc. Page 7 - r- upper Cook Inlet. The heights of sand waves have been observed to range from 2 ft to an excess of 50 ft (Mahmood, et.al, 1981; Bouma et.al, 1978) with lengths ranging from 20 ft to over 1000 ft. In addition to sand waves , boulders are present on the sea floor in Cook Inlet due to extensive glaciation of the area. Boulders have been mapped at Ntkiski , Boulder Point, Point Possession, Beluga, and KnIk. Some of the erratics are in excess of 50 ft in diameter. In addition, sea floor irregular- ities from strong current velocities are also present in Cook Inlet. A trench was observed in Section 28 during the EG & G geophysical investigation. However scour and other current related bottom features are primarily dependent on the density of the seafloor soils. In upper Cook Inlet, ice gouges have also been observed from side scan sonar records. Geologic Setting The Cook Inlet is underlain by a sequence of thick sedi- mentary rocks of Tertiary age and older. The structure is overlain by unconsolidated deposits of Pleistocene and Holocene age. Upper Cook Inlet underwent extensive glaciation during the Pleistocene epoch. The most recent advance, the Naptowne, occurred 14,000 years ago (Karlstrom, 1964, p.56). Glacial advances of the Eklutna, Knik and Naptowne glaciers have been mapped throughout the Upper Cook Inlet by Miller and Dobrovolny (1957). The Eklutna glaciation of Pre-Wisconsin time was the most extensive through Cook Inlet. The sediments con- sist of varying percentages of clay, silt, medium to coarse grained sands and gravel with boulders and cobbles. The Knik advance to Pre- to Early-Wisconsin, was at least to or perhaps slightly beyond Fire Island, Point Campbell, and Point Possession (Karlstrom 1964). According to Karlstrom's interpre,i tation, during the Knik glacial retreat and the Naptowne ad- · vance; the extent of the Naptowne glaciation was approximately to Point Woronzof, Point Campbell, and Point Possession. A prO'- glacial lake was formed between the two glaciers, Plate 10. The McCielland-EBA, inc. Page 8 sediments deposited are considered to be o£ glacto-fluvtal origin (outwash sand and fine gravels). These sediments have been reworked and overconsolidated by Post-Wisconsin Alaskan glaciation, Tustumena and Tunnel advances. Structure and Seismicity The geologic structure of the Cook Inlet area -is highly complex. The rocks of the region record a history of repeated geosyncltnal sedimentation, deformation and intrusion beginning in Paleozoic time and extending through the Tertiary (Foster and Karlstrom, 1967). The major topographic elements of the area were established by the end of the Tertiary period. The subse- quent 'geologic history has -consisted primarily of erosion and modification of the mountainous areas during repeated glacial advances and partial filling of lowland areas with glacial drift and associated deposits (Karlstrom, I964). Offsets of onshore surficial deposits and changes of seafloor relief in the Inlet along existing faults in the bedrock, indicate continuing sporadic tectonism in the region through the Quaternary and to the present. In the Upper Cook Inlet area it was primarily the thick unconsolidated deposits of Quaternary age that failed by fissuring, slumping and subsidence during the t964 Alaskan earthquake. Seismicity is generally defined as the degree of risk of seismic activity as indicated by geologic record (faulting) and frequency of earthquakes in a specified area or region. Southern Alaska inclusive of the Aleutian Island Chain and Cook Inlet is within the ctrcum Pacific belt of seismic and volcanic activity. This geologic region has experienced earthquakes with magnitudes to 8.5 on the Richter scale and is considered an.'.' active area of tectonfsm. A detailed seismicity study was not defined in our scope of services. McClelland-EBA, Inc. is capable and will perform a seismictty analysis of the region if requested by ARCO Alaska. McClelland-EBA, inc. Page 9 We recommend such a study be performed if permanent structures are planned. In view of the Jack-up siting, the risk for seismically induced ground failure is Iow to moderate due to the very dense seafloor sediments. Due to the short duration of the · Jack-up drilling operations, the potential for earthquake in duced effects on jack-up foundations would not be a significant consideration. However, it should be noted that the site is in an area of seismic risk and that ARCO Alaska will be assuming some risk. Site Conditions Soil conditions at the site consist primarily of a medium grained sand with gravel overlying a very dense glacial till. The site stratigraphy is summarized below and is presented on Plate 12. Depth (ft) Soil Description Geologic Interpretation 0.0 to 68.0 0.0 to 15.0 Sand - fine to medium grained silty, gravelly very dense, with occasional shell fragments, wood. Reworked Pleistocene sediments (Bootlegger cove clay and Naptowne outwash)o Holocene deposition. 15.0 to 68.0 Sand - well graded, occasional fine Glaciofluvtal outwash from Knlk glacial re- 68.0 to 88.0 gravels, silty, very dense. Sand - gravelly with cobbles and boulders, si-lty, very dense. treat. Till of Eklutna glaciation. Samples collected in the upper 10 ft contained shell fragments and McClelland-EBA, inc. Page 10 wood fiber. Coal (lignite) chips and organic particles and brown stained sand were present to 68 it, the 'interface of the glacial till· These sediment characteristics are indicative of Kntk deposition. The seafloor soils are very dense with blow counts approximately 30 blows per foot in the upper 5 ft. Seafloor sub- merged unit weights range from 73 pcf to 78 per increasing to 93 pcf in the till· The sediments appear to have been' overconso- 1/dated by Alaskan glaciation of the Tunnel and Tustemena advan- ces. Shallow gas was not encountered during our site investiga- tion. FIELD AND LABORATORY TESTING The field and laborato-ry testing program was designed to evaluate the pertinent strength and index properties of the foundation materials. Granular soil conditions encountered during the field program, necessitated standard penetration testing. The recovered samples were sealed in brass tube liners and plastic bags to prevent moisture loss and returned to our Anchorage laboratory. Ail samples were classified in the field by our engineering geologist according to the Unified Soil Classification System presented on Plate 5-. A comprehensive program of index and strength testing was performed in our laboratory. The testing included: . moisture content . sieve analysis · percent passing #200 sieve · hydrometer · specific gravity · density · maximum and minimum density · consolidated-drained triaxtal compression (reconstituted) A summary of laboratory tests performed is presented on Plate McClelland-EBA, inc. Page 11 11. Brief descriptions of the laboratory test procedures as well as all laboratory test results are given in Appendix B. SOIL PROPERTIES As discussed previously, the soils encountered at the Jack-up site are granular glacto-outwash sediments. The soil grains are predomtnately sand-sized, with varying amounts of subrounded to rounded gravels and silt-clay sized particles. The. granular soils are present throughout the boring. A profile depicting distribution of grain sizes with depths is presented on Plate 12. It can be seen that the silty and gravelly sand extends through the upper 10 ft to 15 ft, the zone most critical for jack-up rig operations. Results of the index testing have been summarized and presented in Appendix B. The soils encountered were very dense with submerged unit weights ranging from 73 pcf near the surface to 93 pcf at depth. Soil unit weights increase with depth as moisture contents decrease. This increase in density was also observed in the driving rate of the Becker diesel hammer. Maximum and minimum dry densities measured on a representative sample in the laboratory were 132 and 106 lbs per cu ft. The /n-place relative density (Dr) of a shallow brass liner sample from 7-ft penetration was computed to be 83 percent, based on a measured dry density of 127 pcf. This value was considered a lower bound. Specific gravity tests were performed on the sand fraction, resulting in values ranging from 2.72 to 2.74, typical values for quartz and feldspathtc sediment mineralogy. To investigate the stress-strain strength characteristics of the critical surficial soils, three reconstituted:'-~ consolidated-drained triaxial compression tests (TXCD) were performed. These tests were performed on representative samples from the surficial (0 to 15 ft) zone, with specimen relative McClelland-EBA, inc. Page 12 densities (Dr) of approximately 90 percent. Results of the TXCD testing, deviator stress vs. axial strain curves and Mohr's diagram, are presented in Appendix B. Results from the TXCD testing show an effective angle of Lnternal friction of 50°, The effective angle of internal friction for the ~surfictal soils can also be determined by the relationship between pene- tratlon resistance (N) and the relative density (Dr) of a cohes- ionless soil (Peck, et al, 1974; Meyerhof 1956). The Standard Penetration Test (SPT) is defined as the number of blows required to advance a 1.4 inch I.D. split barrel sampler twelve inches with a 140 lb hammer free falling 30-inches. The SPT blow counts (N-value) obtained were approximately 30 blows per foot in the upper 10 ft, and in excess of 100 blows per foot below 10 ft. The SPT results are presented on the boring logs, Plates 3 and 4. Soil conditions in the surficial zone being a relatively homogeneous dense sand with a conservative N value of 50 and a relative density of at least 80 percent, angles of internal friction are probably greater than 40°, as shown below in the table of typical relationships for dense and very dense sands (Wtnterkorn and Fang, 1975). Type of Soil Penetration Relative Angle of Internal Resistance Density Friction N (Blows/Ft) Dr Peck (1974) Meyerhof (1956) Dense sand Very dense sand 30-50 0.6-0.8 36-41 40-45 >50 >0.8 >41 >45 For purposes of predicting jack-up rig footing penetration, we selected friction angles of 35° and 40° to develop lower and upper bound leg penetration curves. These angles were selected to reflect the densities and fines content observed in the McCielland-EBA, inc. Page I3 shallow sediments. Rig footing penetration values were, how- ever, found to be relatively insensitive to selection of frtc- tlon angle in dense sands. Design parameters used for jack-up analyses are not necessarily the same paramaters appropriate for analyses of other foundation types. Parameters selected for use in the axial pile capacity and soil resistance to driving computa'tions are presented on Plate 13. JACK-UP RIG OPERATIONS Scour Potential Scour around jack-up rig footings due to tide and storm related currents will be an important factor for operations in upper Cook Inlet. Flow velocities needed for initiation of scour in flumes and streams can be related to so~l cohesion and gra'in size by using Hjulstrom's and Shield's diagrams (Blatt, et al 1972). Introduction of objects such as bridge piers or Jack-up footings modifies the flow regime and creates a horse- shoe vortex that usually intensifies scou~. Analyses and model _ studies for several structures have been reported in the literature (Shen, et al, 1969; Wilson and Able, 1973; Chow and Herbitch, 1978). Site specific model studies would be justified for permanent installations in upper Cook Inlet, but the scour potential for temporary exploration rigs can be evaluated by examining the following three items: · observations of current velocities and scour features the area . nature of sea floor soils at the specific site, · spud can characteristics For evaluating scour potential at the site, these factors~ / are addressed in the following papagraphs. '~ McClelland-EBA, inc. Page 14 Currents and Scour in Upper Cook Inlet. Current velocit~es in upper Cook Inlet observed by McClelland-EBA, Inc. during our site investigat~on ranged from 0.5 to 2.3 knots, 10.0 feet off the seabed, Plate 14. A correlation between the mean velocities required to erode seafloor sediments and observed bottom current. velocities ~s also presented on this Plate, showing that the measured current veloc~ties are definitely capable of causing scour. The current readings were taken during a period of tidal hold-overs ranging from 8.0 to 10.5 ft. Current velocities would tend to increase as hold-overs decrease· A reliable long term study of currents in upper Cook Inlet should be made before permanent installations are established. Bouma, et al (1978), and Mahmood, et al (1981) have pre- sented and discussed sand waves and.sediment movement for lower Cook Inlet. The EG & G data acquired for ARCO indicate sand waves in the northwest corner of the Sect. 29 and a very hard bottom without sand waves near the proposed well location. Soil Susceptibility. The seafloor soil at the jack-up site is classified as a dense sandy gravel overlying a dense gravelly silty sand. Four further characteristics of the sea floor soils were examined to determine susceptibility to scour: '~ ~ ~ . . . Density as measured by blow counts ~_/ · Percentage of clay-size particles · ~.. (binder that may inhibit scour) ~.~ . Percentage of fine sand-size grains (cohesionless fraction that may contribute to scour) · Percentage of surface gravel (the heavier the material, the more resistant to scour) At the site, the above mentioned factors were averaged at the seabed to a penetration of 10 ft. The site is rated moder- ately susceptible to scour. McClelland-EBA, inc. Page 15 . . Spud Can Characteristics. Potential for scour can be reduced by using footings des i g-ned for high bearing pressure (small areas with large leg loads) that will penetrate such that the widest cross-section of the footing is below the potential depth of scour. As this is often not possible in dense soils , some operators have tried jetting to achieve greater Penetration and thus mitigate possible scour effects. If jet'ting is attempted but additional penetration is not achieved, the rig should be moved, as the seaf!oor soils have been disturbed. The shape of the spud can also influences the footing's response to scour as the footing penetration for conical footings is usually greater t. han the penetration for flat cans, thus a part of the load bearing surface is below the depth of scour influence. Conical footings with a sharp tip also greatly aid in "keying" into hard surfaces. Need for Scour Protection The following summarizes the various factors influencing scour potential: · The seafloor soils at ARCO's site have a moderate susceptibility to scour. · Current measurements obtained by McClelland-EBA, Inc. during drilling indicated maximum sea floor velocities at 2.3 knots. Higher currents may be present at other times. . Unpublished instances of scour and sediment transport '~ near pipelines and platforms in lower Cook Inlet are ® ,, .; " In view of the above, the following conclusions are drawn: generally known. Observations by divers at specific sites in Cook Inlet during drilling, construction, or maintenance work have revealed scour as may be known to experienced personnel within ARCO Alaska. McCielland-EBA, inc. Page 16 · A Jack-up with conical spud cans should be selected. · Placement of sandbags or other scour resistant materials should be undertaken upon completion of jacking up. Liquefaction Potential Because of the generally flat (EG & G; Geophysical survey 1983'). local topography around the proposed well location and the very dense state of the seafloor soils, the occurrence of large-scale slope instability and mass movement as a result of either wave-induced or seismically-induced liquefaction does not appear to be of significant concern. However, if an earthquake causes significant ground shaking at the site during drilling operations, localized liquefaction under jack-up rig footings may result in a temporary loss of support and differential settlements. For long term permanent structures, potential for liquefaction should be studied and considered in design· JACK-UP RIG FOOTING PERFORMANCE Description of Rigs We understand that ARCO is considering three different j ack-up rigs. All three rigs are self-elevating with three independent legs. Each leg consists of a square or triangular structural truss connected to spud cans of varying geometries. The rig types and specific rigs selected by ARCO are presented below: Rig Type Specific Rig Name Marathon LeTourneau 116-C Key Singapore Friede & Goldman L-780 Mod II Glomar Main Pass Marathon LeTourneau 116-C Rowan Middletown The spud cans of the "Key Singapore" are conical, and the diameter of an inscribed circle at the widest cross-section is about 43 ft, Plate 15. The tip of the can extends about 10.5 ft McClelland-EBA, inc. Page 17 below the widest cross-section. We understand that the "Key Singapore" has a maximum leg load under 100 per cent preload of 10,600 kips. The "Glomar Main Pass" also has conical spud cans, with an equivalent widest cross-section of 38.4 it, Plate 1'6. The tip of the can extends about 9.3 ft below the widest cross section. This rig as we understand has a leg load of 8,235 kips under 100 percent maximum preload. The "Rowan Middletown" spud can plans and details are not . available to us at this writing. However, we understand that it is similar in size and load to the "Key Singapore". If a review of plans and other details confirms this statement, the curves presented for "Key Singapore" can also be used for the "Rowan Middletown". Design Parameters The soil parameters used in our analyses to predict rig footing penetration at the jack-up site were developed from field and laboratory results, as discussed previously. Soil parameters used for jack-up rig analyses for the zone of interest are summarized below. Depth (it) Stratum From To 9' ~' , ~ Very Dense Sand 0 15 upper bound 40° 65 pcf lower bound 35° where: effective angle of internal friction submer'ged unit weight Submerged unit weight values were chosen conservatively and have very little impact on the analyses. McClelland-EBA, inc. Page 18 ~xp. ected Footing Penetration , We expect very low footing penetrations at the proposed well site in upper Cook Inlet. Using a conservative effective angle of internal friction of about 35° to 40°, tip penetrations below sea floor are computed to be about 5.5 ft for both rigs. Results of our rig footing analyses for the two rigs, "Key Singapore" and "Glomar Main Pass", are presented on Pl'ates 17 and 18 as curves of ultimate leg load vs footing tip penetra- tion below seafloor. The method of analysis used is presented in Appendix C. CONDUCTOR INSTALLATION CONSIDERATIONS Conductor Installation General. The most economical conductor inst~ltati.°~'~' procedure is by driving alone without resorting to supplemental procedures. The computed ultimate capacities of driven pipe piles are based on the assumption that the conductor pipes will' be driven to the desired penetration without supplemental drilling or jetting. However, unfavorable soil conditions and driving equipment problems can prevent conductors from being driven to the desired penetrations. When techniques other than driving are used to aid installation, conditions assumed in computations based on driving alone may not be met, and computed capacttLes must frequently be adjusted to fit actual installa- tion conditions as nearly as possible. Supplemental pile ins- tallation procedures that may be used under various circum- stances, including the possible effects that the procedures may have on pile capacity, have been presented by Sullivan and Ehlers (1972). Application of these or other procedures to aid ordinary driving requires field decisions that take into account many factors beyond the scope of this report. It is appropriate to emphasize, however, that supplementary procedures should be chosen and applied under close engineering supervision, cons/d- McClelland-EBA, inc. Page ering not only construction expediency but also design adequacy. Site-Specific. Recommendations are made here concerning site-specific conductor installation at the study Site. Conductor pipe driving will be difficult in the very dense granular soils encountered. We understand that ARCO wishes to drive a conductor pipe as deep as 160 ft so that a seal will be formed to prevent sand sloughing. To aid in estimating the penetration that can be achieved, soil resistance to driving curves for both 30 and 20 in piles have been developed for the site and are presented on Plates 21 and 22. The maximum soil resistance to be overcome to drive a 30-in pile to 88 ft pene- tration is about 2400 kips,-while the maximum soil resistance at 88 ft for a 20-tn pile is about 1200 kips. The soil resistance to driving curves were developed for both lower bound coring and upper bound plugged cases. The method of analysis used for these computations was similar to that used to develop the axial load capacity curves (see Appendix C), except that the lower bound coring case includes end bearing on the rim area of the pipe and the upper bound plugged case includes end bearing on the gross end area of the pipe. _ Due to the very dense nature of the seafloor soils and the many unknowns associated with estimating soil resistance to driving, it is difficult to predict accurately the actual depth to which conductors can be driven without performing wave equation analyses. However, observations of the Becker diesel hammer performance during the soil boring show a dramatic increase in blow counts by nearly an order of magnitude below about 70 ft penetration. As can be seen on Plates 21 and 22, the soil resistance to driving curves reflect this change with a sharp increase near 70 ft. Conductor pipes can probably be · : ,' driven to at least 70 ft with a standard pile driving hammer i.~":.~.~ /?~" with a rated energy of about 80,000 it-lbs, assuming adequate ' hammer efficiencies are maintained. At approximately 70 it, ,a':, ::: ,~: : strata change is encountered and we believe that pipe penetra~ .~.~ .: 6.'.~~ McClelland-EBA, inc. Page 20 tlon to 70 ft would prevent sloughing and heaving. Driving from 70 ft to 88 ft should be monitored and additional driving beyond 88 ft may cause extensive damage to the conductor pipe due to the occurrence of cobbles and boulders in the underlying till. We would certainly recommend keeping the soil plug inside the pile washed out to alleviate plugged conditions and greatly decrease soil resistance to driving. The use of a driving shoe at the conductor pipe-tip is recommended to prevent damage from hard driving in these strong formations. The inside clearan'ce provided by the driving shoe also acts to reduce skin friction on the inside of the pipe and may delay plugging by reducing lateral stresses developed in the soil plug. A typical driving shoe may be 5 ft long with a wall thickness 0.5 to 1.0-in greater than pipe wall thickness and the same outside diameter as the pipe. At the lower level of the shoe, the inner and outer pile walls taper slightly toward the bottom, leaving a flat width of 0.5 inches. Drivability Analysis A pile drivability study consists of three parts. First, the resistance to driving is estimated from soil properties at the site, as has been done for this study. Second, the driving resistance that can be overcome by a particular hammer-pile-soil system is computed from a wave equation analysis. Third, these results are compared and an assessment of pile drivability is made taking into consideration judgment and past experience. A pile drivability study for the Fire Island site could include a hindcast study of the Becker diesel hammer performance while driving the 5..0-in OD pipe· The hindcast study would provide insight into soil behavior during driving to increase the accuracy of the conductor drivabillty study The driving records of piles at a particular site often show considerable scatter because of variation in soil condi- tions, hammer performance, and cushion properties. Additional McClelland-EBA, inc. Page 21 factors affecting drfvability are "set-up" time during ~nter- rupt~ons in driving and plug behavior. For these reasons, drivabiltty studies should be used to predict a range in blow counts. Effects on drivabillty due to variations of hammer efficiency, cushion properties, minimum wall thickness, percent tip resistance, soL1 quake, and soil damping may be investigated using a wave equation computer program.. We- have the capability to evaluate drlvability and will be available to perform the analysis as follow-on work when hammer-pile parameters have been determined. We recommend that conductor installation be reviewed on-site by experienced personnel. At every available oppor- tunity, the position of the soil plug should be measured and recorded. We also recommend that continuous, detailed and accurate records be kept of the hammer operation. In addition, we recommend that for a hammer with an energy rating of 80,000 ft-lbs/stroke driving a 30 in d~ameter, 1-in wall pipe, a maximum blow count criterion of 200 blows/ft be exceeded only with caution, as damage to the conductor tip may occur. As large cobbles and boulders can be expected below 70 ft penetration, drivLng success beyond that may depend on whether a large boulder is encountered. It is possible that a conductor pipe can be driven to the target depth of 160 ft if only small cobbles are encountered. Careful monitoring of the blow counts below 70-ft penetration will help alert the operator to the presence of a large and potentially damaging boulder. Axial Pile Load Analysis Method of Analysis Computation of the ultimate axial capacity of 30-in and 20-in-dlameter conductor piles was accomplished using the static method of analysis. In this cas'e~, the API RP 2A (January 1982) Method was used. In the static. method, the ultimate compressive capacity for a given penetra- tion is taken as the sum of skin friction on the pile wall and McClelland-EBA,' inc. Page 22 end bearing on the pile tip. End bearing is neglected when computing the ultimate compressive capacity of conductor piles. The end bearing component in the equation is also neglected when computing ultimate tensile capacity. Unit skin friction and unit end bearing data are presented on Plates 19 and 20. Procedures for development of unit skin friction data and unit end bearing data by the API Method are presented in Appendix C. Results of Analysis. The unit skin friction data (Plate 19) were used to compute ultimate compressive and tensile axial pile capacity curves for 30 and 20-in-diameter driven conductor pipe piles. These curves are presented on Plates 23 and 24. As discussed previously, the compression curves do not include a contribution from end bearing for the conductor piles° The 30-tn pile would have an ultimate compressive capacity of 890 kips if driven to 88-it while the 20-in pile would have a capacity of 593 kips at 88-it penetration. CONCLUSIONS AND RECOMMENDATIONS Based on field observations during drilling operations, . results of laboratory tests, and engineering review of all pertinent data, we have developed the following recommendations and conclusions: 1) Scour from seafloor currents will be an important design factor for jack-up rig operations in upper Cook Inlet° Jack-up rig types should be selected to maximize the footing penetration to help reduce the effects of scour. Sand bagging around the rig footings is recommended after Jacking is completed. 2) Liquefaction of the seafloor sediments is not expected to be a problem for the proposed brief duration of exploration activities. AddittonaIly, the dense nature of the seafloor sediments (gravelly sand) reduces the potential for liquefaction. The well location ~n upper McClelland-EBA, inc. Page 23 Cook Inlet is in an area h'aving a h~$tory of tectonic activity with earthquakes 0f as much as 8.5 magnitude. Therefore, it should be .noted that the site is in an area of seismic risk. 3) Large footing penetrations are not -expected at ARC0's proposed well s~te. Footing penetrations should be approximately 5.5 ft at the site for the jack-up rigs selected by ARCO. 4) In driving the conductor pipe, blow counts should be monitored and a maximum of 200 blows per foot with a hammer rated at 80,000 ft-lbs/stroke driving a 30-in diameter 1-in wall conductor should be considered refusal to avoid damage to the pile. Driving to 70 ft should be readily accomplished, however, the pile should be closely monitored for driving past 70 ft due to boulders and cobbles generally associated with the Eklutna 0utwash. 5) During any actual jacking and preloading operations, careful observations should be made of rig loads, footing penetrations, penetration rates, and leg extraction difficulties. The observations will greatly aid future predictions of jack-up rig performance in upper Cook Inlet. We recommend that a geotechnical engineer experienced in jack-up rig operations be present during the initial jacking. The engineer could suggest adjustment to the jacking sequence if the penetrations are significantly different from those predicted. McCielland-EBA, inc. Page 24 REFERENCES AmerLcan Petroleum Institute (1982), "Recommended Practice for Planning, Designing and Constructing Offshore Platforms", API RP 2A, 13th EditLon. Blatt, H., Middleton, G., and Murray, R. (1972), "Origin of Sedimentary Rocks", Prentice-Hall, Englewood Cliffs, ppo 91-93. Chow, W.T.Y., and Herbich, J.B. (1978), "Scour Around a Piles", Proceedings, Tenth Annual Offshore Technology Conference, Houston, Vol. 1, pp. 805-822. Group of Foster, H.L. and Karlstrom, T.N.V. (1967), Associated Effects in the Cook Inlet Area, From the March 27, 1964 Earthquake", U.S. Professional Paper 543-F. "Ground Breakage Alaska, Resulting Geological Survey and Karlst~om, T.N.V. (1964), "Quaternary Geology Lowland and Glacial History of the Cook Inlet U.S. Geological Survey Professional Paper 443. of the Kenai Region, Alaska", Karlstrom, T.N.V. (1952), "Multiple Glaciation in the Inlet Area, South Central ~iaska" (Abs): Geol: Soc. Bull., Vol. 63, p. 129. Upper Cook America Mahmood, A., Ehlers, C.J., Lower Cook Inlet, Alaska", Division, ASCE, Vol. 107, and Ciiweck, B.A., "Sand Waves in Journal of Geotechnfcal Engineering No. GT10, Oct 1981, pp. I293o McClelland, B., "Design of~ Deep Penetration Piles for Ocean _ Structures" Journal of the Geotechnical Engineering Division, ASCE, Vol. ~00, July 1974, pp. 709-747. ' Meyerhof, G.G. (1956), "Penetration Tests and Bearing Capacity.. of Cohesionless Soils" Journal of the Soil Mechanics and Foundation divisions, ~roc. ASCE 82, No. SMI, ppo 866-1 to 866-19. Meyerhof, G.G. "Bearing Capacity and Settlement of Pile Foundations" Journal of the Geotechnical Engineering D~vision, ASCE, Vol. 1~2, March 1976, pp. 165-228. Miller, R.O., and Dobrovolny, Ernest, 1957a, "Pleistocene History of the Anchorage Area Alaska" (Abs) Geol. Soc. America Bull. V68, No. 12, pt. 2, pp. 1908. Peck, R.B., Hanson, W.E. and Thornburn, T.H. (1974), Engineering", John W~ley, New York, "Foundation Shen, H.W., Schneider, V.R., and Karakf, S. (1969), "Local Around Bridge Piers", Journal of the Hydraulics Division, Vol. 95, No. HY6, Proc. Paper 6891, November. Scour ASCE, McClelland-EBA, inc. Page 25- Sullivan, Richard A. Planning for Driving Offshore Technology -. and Ehlers, Clarence J. (1972), "Practical Of'fshore Pipe Piles", Proceedings, 4th Conference, Houston, Vol. 1, ppo 805-822. Terzaghi, K. and Peck, R.B. (1967), "Soil Mechanics in Engineering Practice", New York, John Wiley & Sons, Inc., 2nd Edition. U.S. Army (1977), "Shore Protection Manual", Coastal Engineering Research Center, USACE. Wilson, N.D. and Able, W. (1973), "Seafloor Scour Protection for a Semi-Submersible Drilling Rig on the Nova Scottan Shelf" , Proceedings, Offshore Technology Conference, Vol. II, Paper No. 189t, May. Winterkorn, Hans, F., and Fang, Hsai-Yang (1975), "Foundation Engineering Handbook", Van Nostrand Reinhold Company, New York. . .. .. McClelland-EBA, inc. ILLUSTRATIONS INDEX MAP .0 B Pt Pension ........... -7-: ~jTE LOCATION MAP :,.'BORING 1 ~'UpPER COOK iNLET, ALASKA ,,, · f- ., Mll,rr&R¥ -R '" 0 ® 30 29 31 32 LEGEND ARCO INTENDED BORING LOCATION 20' BORINGS 88' BORING NO SCALE 1150' 1096' .1074' 1132' T.12 N., R.6W.,.S.M. SITE PLAN UPPER COOK INLET, ALASKA McClelland-EBA, inc. PLATE 2 ii ill i iii 1150' I'WI. and 1300' ' ~ PLASTIC WATER LIOUiD ] COORDINATES: c,qL, SEC 29 DATE COMPLETED: ! !/! 5/83 ~: ~1) LIMIT CONTENT. % LIMIT BECKER DIESEL HAMMER TI2N R6W. SM Cook Inlet ~g~O · · WATER DEPTH: 49 [t FIELD ENGINEER: M. Schlegel O 20 40 $0 80 BLOWS ! FOOT I ! · FINAL PENETRATION: 88 ft JOB NO, 0183-0108 HAMMER ISUBMERGEO UNIT WEIGHT, KCF S40t140 .O6 .O6 .O7 .O8 50 1OO 150 200 250 300 350 o___ , , I ° GRAVEL - sandy, silty, maximum gravel particlef 35 size 3 in diameter, very dense, brown~ 32 34 g olive grey. 26 O · SP SAND - fine to medium grained, silty with 100 10- I occasional coarse s~nd and fine gravels . [ g very dense, grey, occasions1 particles 90 $ · -- 4 of black lignite - 0 to 10 ft occastona Il ~ shell fragments and fibrous organics, 2100 with 15 to 20 percent gravel content to: 20_ t5 ft. -- ~ 30-- , - ,. ~: 40 _ ~ 99 , -12 uJ SM _~ - silty, grey, very dense, fine to medium 67 grained sand, occasional subrounded to Z -- rounded gravels to I in _o 50-- z ~< i -16 ~' 80_ ' i "' SP ,~ , - 20 70. _~l* ' (68'_)_1~2 ,.,~ , · _ SAND - gravelly, silty, 30 to 35I gravel content -------- ~ SP gravel subrounded to rounded, maximum SM .. particle size 3 in diameter, (observed) '.. very dense, grey , till, >600 blowt[t '"'~ 80 ", , .... , ....... ~ I {, -,24 : ~, ~:. · ~Number of blows required to advance; Number of blovs required to drive a 5 g i~..0" (I) SP~/lh0'~ ~e~R ~ NO RECOVERY - 2.0f' OD SP?/i~0I FU~F~R a I .A-in ID split spoon w/a 140l! hammer, in OD, 3-in ID hammer pipe approxiumtely ._... a 2,6~tn ID split spoon w/s 360~'! ha~aer, 12 in w/a diesel ha~mer 180 speeder by '~ G~A~/C~LO~C m.,~lT ~ NO ~COV[~ - 1.0" OD SPOO~/~0* ~ 12 inches, link belt, delivering 8,000 it-lb/blow. , ":,'.' "::,'~ BOREHOLE LOG AND LABORATORY TEST RESULTS.. ,. , . ', ,,,, '1 ii I i ! Ill I II ~~_ =I~LAST lC WA'TER LIQUID ~LOCATION: UDDer Cook lnlet, DATE COMPLETED: I 1/15/83 ~ _~ ~:) LIMIT CONTENT. % LIMIT BECKER DIESEL HAMMER + WATEn DEP~ska-- 49 ft FIELD ENGINEER:M. Schlegel--~ ~ 20 40 ,0 80 ... BLOWS I FOOT FINAL PENETRATION: 88 It JOB NO. 0183-0]08 HA~ I SUBMERGED UNIT WEIGHT. KCF ~/~4o~ .O5 .O6 .O7 .O8 50 1~ 160 200 250 300 350 0 80 SAND - gravelly, silty, ve~ dense, grey, tl]l R~ner b~ws g~eate~ tha~ 400 SM Reftsal tD Bec'~er h~er ~ 88 t -4 ~ _16 z - . .... ~ ~umber of b[o~s requited ~o a~vance-_, Humbe~ '::~ a 2.6-~n [D sp[~L spoon ~/a 3~08 ha~et, --t ITl UNIFIED lOlL CLAIIIFICATION INCLUDING IDENTIFICATION AND OI~ICRIPTION FIELD IDENTIFICATION PROCEDUREI e, aouP INFORMATION REOUIRED FOR LAIORATORY CLA~IIFICATtON .. ~ e ~~ ~ ~ Z ......................... I i*f ~H.h&Wu*~ed s(Jdq add i.lfle ~ ,o~,fm~ uu OI ~11 ~ ~ ~ ~ ~ Ailef~rg hmtts .hove "A" i-,e .VinYls ......... . ~ ~- . ................. , ..................... ~ .... ' .......... ' .... ~ .... " .... " ...... '"' ~ & ~ ~ . ........ g.,,~..~ ....... . .......... ,o. SW e see Cl. he~uw t ............ ..... ........................................................... coat, se grains; coto~ iff wet ; ~ ~ ~ :' .-~ ~~ Me(l~lm to high ~one to very slow Medium CL gr~vellv cl~vs, ~dtV ct~ys. II~l~ clly~ Ilnef*t descfiplive inlormll~Orl; ~ 50:~ ' i~last,(.~v hO~ On ~.uctu~e. itreld~cetm~. :-:' :T:':':.: ~:':':::::=':": "~:. ~ ; ............................. ........................... , ................ : .......... Z Z~Z } ~ , ..... . ...... ,.~.,. h,~. ~,, ....... *v.~.~ ~*.., C*.v.v .. b,o ..... *,..,~v ~..,c. ~0 :-'-- ~ ~L= ~:'~ ~ ~ ==============================-L--~ ...... ~ ................. e j [IOUID LIMIT OII i PeR LARORA~OflY., CLAI$1piCATION of FINE GRAINED . HIGHLY ORGANIC SOILS Rl~dy ~dentdmd by colo~ ~(lof s~)onUy feel ind ~r.'~ ~f other h~ghtV O~n~c soiLS. ' : , , ...- .~... I I RoundarV cleeml~cetiQnl Sods pos~lass,ng che~c~e~sf,c'l Gl two g~ooDe i~e ~tes,gnlled by combmlllOnl of O~oup iymhol~ FoE e~. U~I FI ED SOl L CL~SSI FIC~TIO~ CH~RT i McClelland-EBA, linc. OFFSHORE O. PERATIONS BORING 1 'UPPER COOK INLET, ALASKA PLATE 6 NAME X Y · ARCO Intended Boring Location 431,492 2,593,547 Boring to 88' 431,422 2,593,519 Boring to 20' 431,444 2,593,531 Boring to 20' 431,480 2,593,542 Misery 3 417170.90 2659082.02 Rabbit 549986.02 2596512.64 Point Possession Offset 429909.80 2571466.66 AS DRILLED LOCATIONS AND SURVEY CONTROL COORDINATES UPPER COOK INLET, ALASKA McCle~md-E~, ~ PLATE 7 TIME QBSERVED TIDES AND (~URRENTS FIRE ISLAND UPPER COOK INLET, ALASKA ..... I KNOT8 ' - I KNOT 0 KNOT BARGE ECHO SOUNDER MUDLINE CURRENT METER 10' WEIGHT 12.0' FREEBOARD .__~0' BELOW WATER I WEIGHT , I,,f~.lel~nd- EBA, In~. CURRENT METER AND ECHO SOUNDER UPPER COOK INLET, ALASKA PLATE 9 TYPE OF TEST NUMBER OF TESTS Moisture Content Sieve Analysis Hydrometer Percent Passing #200 Sieve Maximum and Minimum Density Bulk Density Specific Gravity Consolidated-Drained Triaxial (TXCD-Reconstituted) NUMBER OF TESTS BORING 1 UPPER COOK INLET, ALASKA McClella~I-EBA, II~ PLATE 11 0 0 10 PERCENT FINER 4O eO 80 I1! 100 8TRATIQRAPt4Y Gr.v®l~, Silty 20 ~u 3o 7O Silty, trac® of gravel SAND Gravelly, Silty (Tllr~ (SM-OM) LEGEND FINER THAN 4.7'5 mm (NO. 4 SIEVE) FINER THAN 0.075 mm (NO. 200 SIEVE) 81LT SAND GRAVEL AND CLAY GRAIN SIZE PROFILE BORING 1 UPPER COOK INLET. ALASKA McCJeJEand-EBA, Inc. PLATE 12 0.04 0 SUBMERGED UNIT WEIGHT, KIPS PER CUBIC FOOT 0.05 0.06' 0.07 0.08 0.09 u,.I 2O ~: 40 m 60 z 0 Z 80 100 1~'= 35°, 6 = 30° N' · q= 40 ~'= 40o· ~ = 35° N' · q= 60, f = 2.4 KSF, qma~ = 300 KSF I I I I VERY DENSE SILTY _ SAND VERY DENSE GRAVELLY - SAND DESIGN PARAMETERS CONDUCTOR ANALYSES FIRE ISLAND UPPER COOK INLET, ALASKA ~-EBA, ~c. PLATE 13 10 8 6 2 1.0 .10 .01 .02 .{M .06 .08.10 .2 .4 .6 .8 1.0 2 4 6 8 10 Particle size in M.M. ~ MEAN VELOCITIES REQUIRED TO ERODE SAND. (AF'rER US ARMY, 1977) 2300~ 0400 I I! 0900 1400 1900 NOVEMBER 14th ' 2 KNOT8 I KNOT 0 KNOT 1.7 FEET/SEC. = I KNOT IqcC:lelland-EBA, inc. SCOUR POTENTIAL VS. BOTTOM CURRENTS BORING 1 UPPER COOK INLET, ALASKA PLATE 14 I II I ! II I II I III . I · 24' T 11i75' 5' 5.5' MAXIMUM LEG LOAD (100% PRELOAD) = 10,600 KIPS MAXIMUM BEARING PRESSURE (100% PRELOAD) = 7.12 KSF HE IGHT ABOVE FOOTINg. TIP, FT PROJECTE~ .AREA~ FT- EQU I VALENT DIAMETER, FT TOTAL 3 VOLUMEd FT 0 0 0 0 5.5 50 8 92 10.5 1488 43 3,268 12.25 1488 43 5,872 24 1488 43 12,821 .. LEG LOADS AND FOOTING DIMENSIONS 'KEY SINGAPORE' MARATHON LeTOURNEAU 116C UPPER COOK INLET, ALASKA ~' I I I IIIII · pLATE 15" I -- I I I · I 20' . 3.0' 5.0' MAXIMUM LEG LOAD (100% PERLOAD) ' 8235 KIPS MAXIMUM BEARING PRESSURE (100% PRELOAD) - 7.1 KSF HE IGHT ABOVE FOOTING TIP~ FT PROJECTED AREA~. FT- EQU I VALENT D I.~METER,, FT TOTAL VCLUME¢ FT2 0 0 0 0 5.0 32/79 5.7/10 53 9.3 1160 38.4 2241 12.3 1160 38.4 5733 20.0 1160 38.4 9733 LEG I LOADS AND FOOTING DIMENSIONS "GLOMAR MAIN PASS" FRIEDE AND GOLDMAN L-780, MOD II UPPER COOK INLET, ALASKA I I I I I III II I .I uJ Z Z 10 15 ULTIMATE LEG LOAD, KIP8 2600 I 6000 7500 10000 12500 16000 17500 ! I ' ! '! ' ' ! UPPER BOUND -~~ MAXIMUM PRELOAD = 10~,600 KIPS LOWER BOUND PREDICTED TIP PENETRATION ' 5.5' MEAN LOWER LOW WATER DEPTH - 49.0' ........... I I .... I,,, 20O00 ULTIMATE LEG LOAD VS. TIP PENETRATION 'KEY SINGAPORE' UPPER COOK INLET, ALASKA i II I I I _ I _ . i I II IIII II I . I II O. 1.1.1 0 m 0 ..J 10 uJ I 25O0 5000 I ULTIMATE LEG LOAD, KIP8 7600 10000 12500 ! 16000 17500 20000 I ! MAXIMUM PRELOAD = 8235 KIPS LOWER BOUND / ' UPPER BOUND PREDICTED TIP PENETRATION = 5.5' MEAN LOWER LOW WATER DEPTH = 49.0' I .... I .,I ~ ULTIMATE LEG LOAD VS. TIP PENETRATION 'GLOMAR MAIN PASS' UPPER COOK INLET. ALASKA uJ 0 0 20 40 m 6O 2: 0 z 80- 100 UNIT END BEARING, KIPS PER SQUARE FOOT 100 200 300 400 500 'VERY DENSE S I LTY SAND VERY DENSE GRAVELLY SAND I I ! ! UNIT END BEARING FIRE IS"LAND UPPER COOK INLET, ALASKA IqcCleBa~I-EBA, Ira=. PLATE 19 0 0 · l 20- < 40 - 0 m 60- 0 .mi I- ' ,< z 80- 100 ' UNIT SKIN FRICTION, KIPS PER SQUARE FOOT 0.5 1.0 1.5 2.0- 2.5 ~~~COMPREssION ' VERY DENSE GRAVELLY SAND VERY DENSE SILTY SAND I I ! ! UNIT SKIN FRICTION FIRE ISLAND UPPER COOK INLET, ALASKA IqcClelland-EBA, Inc. PLATE 20 I- 1.1.1 w z O. 2O 40 60 80 100 SOIL SOIL RESISTANCE TO DRIVING, KIPS 600 1200 1800 2400 3000 COR I NG PLUGGED VERY DENSE SILTY SAND VERY DENSE GRAVELLY SAND I I I ! RESISTANCE TO DRIVING CURVES 30-in-DIAMETER CONDUCTOR PIPE PILE 1.0-in WALL THICKNESS FIRE ISLAND UPPER COOK INLET, ALASKA I -- I I SOIL RESISTANCE TO DRIVING, KIPS 400 800 1200 1600 m 20 < 40 m 60 z 0 z 80 CORING , PLUGGED VERY DENSE S I LTY SAND VERY DENSE GRAVELLY SAND 100 L SOIL RESISTANCE TO DRIVING CURVES 20-in-DIAMETER CONDUCTOR PIPE PILE 0.625-in WALL THICKNESS FIRE ISLAND UPPER COOK INLET, ALASKA 2000 · HcClelland-EBA, In~ PLATE 22 200 ULTIMATE PILE CAPACITY, KIPS 400 600 800 i i I' a 1000 u.I 20 ¢: 40 m 60 0 2:80 100 TENS I ON VERY DENSE - GRAVELLY SAND COMPRESSION WITHOUT END BEARING t L ! I VERY DENSE SILTY SAND ULTIMATE PILE CAPACITY CURVES ~ ,, 30-in-DIAMETER CONDUCTOR PIPE PILE APl RP 2A (JANUARY, 1982) METHOD FIRE ISLAND UPPER COOK INLET, ALASKA I~aelland-EBA, ~. PLATE 23 I- UJ uJ Z 0 20 40 60 80 ULTIMATE PILE 200 400 i CAPACITY, KIPS 600 800 t I COMPRESSION WITHOUT END BEARING TENS ION ~'"'~~ VERY DENSE S I LTY SAND VERY DENSE GRAVELLY SAND 1000 100 ! I ! I ULTIMATE PILE CAPACITY CURVES 20-in-DIAMETER CONDUCTOR PIPE PILE APl RP 2A (:JANUARY, 1982) METHOD FIRE ISLAND UPPER COOK INLET, ALASKA lq~iell~l-E~, ~. PLATE 24 APPENDIX A DAILY SUMMARY OF FIELD OPERATIONS McCielland-EBA, inc. Page A-1 DAILY SUMMARY BORING 1, NEAR FIRE ISLAND UPPER COOK INLET, ALASKA 0183-0108 DATE 11/11/83 ]1/12/83 11/13/83 11/14/83 11/15/83 TIME 2030 - 2300 2300 - 2400 0001 - 0010 0010 - 1100 1100 - 1250 1250 - 1445 1445 - 1740 1740 - 2400 0000 - 0300 0300 - 0700 0700 - 1600 1600 - 2400 0000 - 0100 0100 0730 08OO - 0730 - O8OO - 2400 0000 - 0030 - 0800 - 1300 - 0030 0800 1300 132'0 DESCRIPTION MCCLELLAND-EBA fleld engineer arrived at Pickworth's dock. Mob ~n progress. Leave dock, travel to Pt. Woronzoffo Travel to Pt. Woronzoff. Continue mobilization. Drilling crew arrives at 1000. Mob completed 1100. Tr'avel to site. Set anchors, barge on location° Prepare to drill - wait on low water slack. Deploy Echo-Sounder. Drill Borehole 1 to 15.0'. at current meter and Raytheon Continue d boring, br assisted d Pipe out o slack. Crews sl Winched and samp sand at 20 Break for rilling to 20.0' - terminate eak for tide - switch to rotary rilling system. f hole - break until low water ept over began to run pipe, drilling ling. Hammer pipe plugged w~th .0'. Hammer pipe out of hole. tides - crews slept. Attempt to run pipe - tide running too strong, will break until morning tide. Crews slept. Tighten anchors and winch over, prepare to drill. Drill borehole to 88.0'. Clean.up tools. Crews slept. Pick up anchors, travel to Anchorage. Ferry crews in from barge on tug. Arrive at dock. McClelland-EBA, inc. APPENDIX B LABORATORY TESTING PROGRAM McClelland-EBA, inc. APPENDIX B LABORATORY TESTING PROGRAM CONTENTS Page INTRODUCTION ................ ' ...... B-1 CLASSIFICATION AND INDEX TESTS ............. B-1 CONSOLIDATION-DRAINED TRIAXIAL COMPRESSION TEST .... B-1 ILLUSTRATIONS Plate SUMMARY OF TEST RESULTS ................ B-1 RELATIVE DENSITY TEST RESULTS .............. B-2 GRAIN SIZE CURVES ................... B-3, B-4 CD TEST RESULTS Stress-Strain Curves ............... B-5 Mohr's Circle Diagrams .............. B-6 McClelland-EBA, inc. APPENDIX B Page B-1 LABORATORY TESTING PROGRAM Introduction Brief descriptions of this Appendix. Results for the boring logs and are Results. Results for grain size presented here in graphical form. laboratory tests are presented in the laboratory tests are plotted on tabulated on the Summary of Test and strength tests are also Classification and Index Tests These tests were run as necessary to aid in evaluating the true nature of the soils _encountered in the borings° These tests were generally run using standard ASTM procedures as listed below: Test ASTM Designation Moisture content D2216 Grain size determination D421 & 422 (sieve, -#200, hydrometer) Specific gravity D854 Maximum and minimum density D1557 & D2049 Consolidated-Drained Triaxial Compression Con sol t dat ed-drat ned run on several sand relative density. enclosed in a thin cell. l) 2) Tests (CD) triaxial compression samples reconstituted to about In this test, the soil rubber membrane and placed in Tests were conducted in three stages: Saturation - samples were saturated through of a back pressure, a cell pressure and Consolidation - samples were allowed isotropically under selected confining tests were 90 percent specimens were a triaxial application a vacuum. .~' · to consolidate .. pressure 'near: McClelland-EBA, inc. Page B-2 the in. situ vertical effective overburden pressures. 3) Shear - samples were sheared under increasing axial load with full drainage allowed. Results of the CD tests are presented on Plates B-3 and B-4 as curves of deviator stress vs axial strain and as Mohr's circles. McClelland-EBA, inc. I 8UMMARY OF LABORATORY TE8TINQ RESULT8 ' ,ATTERBERG GRAIN SIZE BAMPLE DEPTH MOIST. SPECIFIC LIMITS DISTRIBUTION INTERVAL CONT. DENS. GRAVITY LL PL PI CLAY- SILT SAND GRAV DESCRIPTION NUMBER 'ifil i%) 1 DRYIPCF) (%) {%l (%) I~! (%1 , I%! , 2.73 ....... Gravel - s.andv, silty (GP) lA__ _ _Q ._0__-_.. _0_.. 5 ........ !5.0_ ............................................ - 25 60 15 Sand -sil[¥, ~ravelly (SM) lB 0.5- 1.0 16.4 _ .. .__It__ L, 0_--._!_,5. ............................................................. · ...... .... 4 .__96__ 0 Sand - fine to medium (SP~ · 2A 2 ..Q__.-.__4,5_ 19..7. ................................. ....... 6. o ........... r ...... ( ___Z_C ....... 6.._O .:_6.5 ................................................................. - 2D 6.5 - 7.0 11.8 .._1..2_7____ 2.73 12_2_~7 .... 3_9. .... _22 Sand - silty Rravelly (SM) 3A 90-98 .......... 4A 12.0- 12.5 ................................................. -. 4B 12.5 - 13.._0 .13..8_ ............................... ........................ 33 53 14 _ .... Sand- silty, trace gravel (Si 4C 13.0 - 1...3,5 12.1 _1.2..3.. 2.72 ............ 11 .... 2..8. .... 5..5. ...... 6. ..... Sand - silty. (SM) 5A 15.0- 16.5 ..................................... 7 .9~3 ....._0 ....Sand- fine to medium (SP) 6A ._45...:_0..~ .4_5.:.5 ..... .2.0.._.0 2__~4 .... 76 0 Sand- silty (SM) . ......... ..... .7..6 .......... .6..3...0 .-.'. 63.510.2 .... 2.73 ................................ .3... 96 1 Sand - medium to fine (SP).. · 8 57 35 Sand - gravelly_ (SP-SW) ...... 7.B ........ 68.5 - 69.0 10.1 .1..3.6 ......................... ,.' ......................................... · ~_SA ........ 85 ,. 0. :~.. _E, 7.0 ............................................................................ ...... II.A_ ......... 88.0 6.2 148 2.74 ..................... _6. .... .!2_ .... , :, _ .. · PROJECT NUMBER 0183-0108 BORING NUMBER 1 1.50 7O 20 aO 6O 80 Relat~¥e Density, % RELATIVE DENSITY TEST RESULTS , BORING 1 UPPER COOK INLET, ALASKA L Il I Iml I m I McClelI~nd-EBA~ Inc. 134) ~2o .~ 110 "' 80 g 70 100 PLATE B-2 I00 I bJ z bJ U O~ ld O- GRAIN SIZE CURVES 9O 8O 7O 6O 5O HYOflOME TER U.S. STANO~R0 SIEVE OPENINGS IN INCHES U S. SI'ANOARO SIEVE NUMBERS I00 140 ZOO 0 I0 30 40 50 60 40 3O 2O I0 0 I00 7O 80 90 .............. ' '--- ~e- ~ ,__~ ' ,-~;-~' ' ................ ~ ..................... f::~::'::'::":.:'.::~..'.'--: ..... '..:'.r:'"-...~-_... .,.- :'::~::'-'~:::'~:::::':~;::"' ~' :'::-?: ~: ....... ':"-: ....... :'-,-'-': t- t ...... :": ....... : ....... :--:--':--::~,' ....... :: ......................... t'~ ...... ~~-:,oo 50 I0 5 I 0.5 0.1 0.05 0.01 0.005 ~ 001 GRAIN SIZE IN MILLIMETERS GRAVEL SAND SILT or CLAY i Coarse I Fine Coarse ~ Medium I Frae CURVE BORING NO. PENETRATION, FT MATERIAL 0-'0 1 6.5 SILTY SAND SOME GRAVEL X--X I 12.5 SAND SOME GRAVEL .--~ 1 13.0 SILTY SAND SOME GRAVEL +--+ I 15.0 FINE SAND I-- Z u ct. bJ Z t~J U n~ I00 9O 8O 7O 6O 50 40 30 2O I0 0 I00 U.S.$TAN0~RD SIEV[ OPENINGS IN INCHES GRAIN SIZE CURVES U S. STANOARO SIEVE NUMBERS 30 40 .50 ?0 100 140 200 50 I0 5 G RAVEL Coarse i Fine I 0.5 0.1 GRAIN SIZE IN MILLIMETERS Coarse I SAND J Medium I Frae CURVE 0--0 X--X BORING NO. 1 1 1 1 PENETRATION, FT 45.0 63.0 6t~.5 BB.O 0.05 HYDROMETER 0.01 0.005 SILT or CLAY MATERIAL MEDIUM FINE SAND MEDIUM FINE SAND GRAVELLY SAND GRAVELLY SAND TRACE SILT --I0 2O 3O 4O 5O 6O 7O 8O 9O I00 0.001 W n~ W C~ W l.O 0,8 0.6 0.4 0.2 0.0 CURVE PENETRAT t ON 0'2 (c~; -o-a ) F M KPA KPA (FD (KSF"3, (KSF) 2fi. 5 34. 4 217.4 <87. O) (0. 7) (4.5) ........ 2fi. 5 68. 8 453.6 (87. OD (1.4) (9. 5) 26.5 103. 2 675. 3 (87. O) (2. 2) ( 14. 1) .- 2 4 § 8 AXIAL STRAIN, ~ (%) lO STRESS-STRAIN CONSOL I DATED -- DRA I NED BORING 1 CURVES TRIAXIAL TEST McClelland-EBA, thC. PLATE B-5 . I I I I ~ I I I I IIII I I I 10 NORMAL 8TRE88, 0 (KSF) 0 6 10 15 ¢,= 50° ' C,- 0.0 KSF' , · , . MOHR DIAGRAM · CONSOLIDATED DRAINED TRIAXIAL TEST BORING 1 UPPER COOK INLET, ALASKA I _ III I APPENDIX C ENGINEERING ANALYSES' CONTENTS Plate INTRODUCTION· C- 1 AXIAL PILE LOAD ANALYSES Method Of Analyses ................. C-1 JACK-UP RIG PREDICTIONS Method Of Analyses ................ C-3 McClellan~EBA, inc. APPENDIX C ENGINEERING ANALYSES Page C-1 INTRODUCTION This appendix descrtbe~ in detail the engineering proce- dures used in evaluating axial pile capacity, and in predicting jack-up rig footing penetration. AXIAL PILE LOAD ANALYSES Method of Analysis The static method of computing axial pile capacity was used to predict the ultimate compressive and tensile capacities of pipe piles installed to various penetrations. In this method, the ultimate compressive capacity, Q, for a given penetration is taken as the sum of the skin friction on the pile wall, Qs' and the end bearing on the pile tip, Qp, so that: Q = Qs + Qp -- fA + qA s p Where A and A represent, respectively, the embedded surface s p area and pile end area; f and q represent, respectively, the unit skin friction and unit end bearing. When computing ultimate tensile capacity or conductor capacity, the end bearing component in the equation is neglected. Procedures used to compute values of f and q are discussed in the following paragraphs. Granular Soils. Computation of unit skin friction for pipe piles embedded in granular soils was in general accordance with Sec. 2.6.4, Para. c and was based on the equation: McClelland-EBA, inc. Page C-2 f = K O~ tan~ where coefficient of lateral earth pressure effective overburden pressure~ and angle of friction between soil and p~le. Values of K were taken as 0.7 and 0'.5 for compressive and tensile loads, respectively. The following table presents recommended friction angles between soil and pile, ~ , given by API for siliceous granular soils. Also shown in this table are limiting unit skin friction values, f , recommended by max McClelland (1974) and supported by data presented by Meyerhof (1976). Soil-Pile Friction Angle S Soll Type 6 ,degrees f max' Sand 30 2.0 Silty sand 25 1.7 Sandy silt 20 1.4 Silt 15 1.0 Limiting Unit kin Friction ksf Higher values of soil-pile friction angle and limiting unit sk'in friction were used for the very dense gravelly sand below 68 ft to reflect the relatively greater densities and blow counts observed in this zone. Unit end bearing in granular soils was computed using the following equation: where S' O~ N' q effective overburden pressure, and dimensionless bearing capacity factor that Is a function of ~, the angle of internal McClelland-EBA, inc. Page C-3 friction of the granular soils. The following table presents-- recommended bearing capacity factors, N' , given by API for siliceous granular soils. Also q shown in the table below are limiting unit end bearing values, qmax' recommended by McClelland and supported by data presented by Meyerhof. These values of N' and q have generally been q max used in our computations of unit end bearing, although greater values were used in the extremely dense gravelly sand below 68 ft. Soil Type Dimensionless Limiting Unit Bearing Capacity End Bearing Factor, N' q , ksf q max Sand 40 200 Silty sand 20 100 Sandy silt 12 60 Silt 8 40 JACK-UP RIG PREDICTIONS Method of Analysis When a self-elevating mobile rig is jacked up, the footings penetrate into the soil below the seafloor until the ultimate bearing capacity of the soil becomes equal to or greater than the pressure applied to the so~l by the footings. Since the supporting legs of a mobile r~g have a fixed length, one purpose of a jack-up study is to predict the footing penetration to enable the operator to establish whether the rig has sufficient leg length to safely operate at a particular site. Another purpose of the analysis ~s to check for the possibility of a sudden penetration of the footing caused by punching through a strong soil into an underlying weak soil. The specific methods of analysis used in this study for the case of a granular stratigraphy with no punch through potential is described below. McClelland-EBA, inc. Page C-4' Cohesive .and Granular Soils. The ultimate bearing capacity for granular soils under the rig footings was computed in this study using the following equations proposed by Terzaghi and Peck (1967). q U where q Np , N q 0.3 72' BNp + 71' D(N - 1) + 7V/A .... (for sands q and silts) ultimate net bearing capacity dimensionless bearing capacity factors average effective unit weight of soil above base of footing average effective unit weight of soil below base of footing average effective unit weight of soil displaced by footing _. diameter of base of footing (widest cross-section in contact with the seafloor) volume of footing that has penetrated below the seafloor largest cross-sectional area of footing depth to base of footing (widest cross-section) McCielland-EBA. inc. APPENDIX "A" GeQtechnical Investigation SHALLOW HAZARDS SURVEY REPORT VICINITY OF FIRE ISLAND, COOK INLET, ALASKA BLOCK ADL 3261 04 SUBMITTED TO: ARCO Alaska, Inc. Anchorage, Alaska SUBMITTED BY: EG&G Environmental Consultants 2220 E. 88th Avenue Anchorage, Alaska 99507 December 16, 1983 TABLE OF CONTENTS ITEM TITLE PAGE I · II. III. IV. V · VI. INTRODUCTION SURVEY PROCEDURES AND FIELD OPERATIONS INSTRUMENTATION RECORDED RESULTS INTERPRETED RESULTS CONCLUSIONS AND RECOMMENDATIONS 3 5- 6 APPENDICES APPENDIX A APPENDIX B SURVEY SUMMARY AND NAVIGATION LOG SAMPLE DATA FIGURES FIGURE 1 FIGURE 2 TOWING DIAGRAM AND CABLE CONFIGURATION SURVEY LOCATION MAP ~SHALLOW HAZARDS SURVEY REPORT VICINITY OF FIRE ISLAND, COOK INLET, ALASKA BLOCK ADL 326104 I · INTRODUCTION At the request of ARCO Alaska, Inc., EG&G Environmental Consultants conducted a geohazards survey in Cook Inlet near the southwest tip of Fire Island. The survey area initially specified was a one square mile area but was later expanded to include an additional one square ~mile area to the east. Bathymetry, side scan sonar and high resolution boomer data were obtained. The survey objectives were to delineate any shallow hazards or constraints, geological or man-made, that might effect the future development of the block. Shallow hazards that may prove deleterious to drilling, piling, platform construction or pipeline laying fall generally into these catagories: A. Seafloor anomalies (reefs, outcrops, areas of instability or man-made objects). B. Surficial faulting. C. Shallow gas pockets. D. Surface or near-surface channeling or erosional features. E. Sediment and/or slope instabilities. It is the purpose of this report to describe the survey procedures, instrumentation, to analyze and interpret the recorded data, and to detail and position any of the foregoing hazardous anomalies. II. SURVEY PROCEDURES AND FIELD OPERATIONS The survey data were recorded using a 27 foot vessel provided by Besse, Epps, and Potts, based in Anchorage, Alaska. Survey recording began October 26, 1983 with fathometer, sub- bottom profiler and sidescan sonar deployed, and was completed November 6, 1983. Figure 1 presents the towing diagram and cable configuration. ' SIDESCAN SENSOR SUBBOTTOM PROFILER 8 ELEMENT HYDROPHONE VARIABLE TOW DISTANCE (2S- 40 FT. ) SUBBOTTOM PROFILER SOUND SOURCE VARIABLE TOW DISTANCE (20- ~5 TRANSDUCER. AN~NNA VAa~e~ TOW DIlAtE (zo- s~ FT. ) INSTRUMENT CABIN TOWING DIAGRAM AND ,CABLE CONFIGURATION The su~w~ey area, a one mile square centered in ARCO's block no. ADL 326014, was expanded on October 28, 1983 to include an additional one mile square to the east. This resulted in a survey area one mile north-south by two miles in an east-west direction (see Figure 2). The survey grid consisted of 13 .east- west lines, approximately 3300 meters long, spaced 150~meters apart. The northern boundary was comprised of line number 1, covering the western one mile and line number 12 over the eastern one mile length. Line 41 provided the entire two mile southern boundary. Twelve north-south lines approximately 1800 meters long were spaced 300 meters apart. Line 36 was pos±.tioned over the west boundary and line 43 over the east. Also, three additional north-south lines about 1800 meters long were ositioned near the center of the original one mile square. Line Was positioned directly over the center and lines 5 and 9 were spaced 300 meters to the west and east respectively. This resulted in 150 meter spacing for north-south lines ~ through 10o These additional lines were run Prior-to a request by'ARCO to change north-south line spacing from 150 meters to 300 meterse Weather conditions during the recording period ranged from good to very poor and were responsible for several delays. The major survey interference was the very strong tidal currents which limited survey operations to periods of slack or near slack water. Appendix A presents a field log summary and tabulation of shot points by survey line number. III. INSTRUMENTATION A. Navigation Positioning services were provided by Besse, Epps and Potts,-2220 E. 88th Ave., Anchorage, Alaska. A Motorola Mini-Ranger IV system was utilized. Navigational fix positions were numbered consecutively, as encountered with fix number 1 beginning line 1 and number 1491 ending line ~4, the last line run. The plotted fix interval was 250 feet. A trigger signal from the navigation system at each fix position initiated the event markers on the various recording instruments and these were annotated by the instrument operators. Records were fixed every 250 feet. B. Fathometer A Raytheon DE-?19B echo sounder with a 208 KHz transducer provided data relative to water depths within the survey area. The transducer was stern mounted one foot below the water line, less than 1 foot aft of the navigation antenna. ~ ¢0o~ PROPOSED WELL SITE I . SURVEY AREA .~ Pt. Possession NA' PENINSULA~ ~ ' ,,?~,, ,,,;1'; \, ....... :'" ,,, Pt. Woronz,~ Pt. ,:~ T I'~-'~ Campbell,L. FIGURE 2 SURVEY LOCATION MAP Bott'Om responses were recorded on preprinted 7 inch electrostatic~paper with scale divisions of 1 foot. The 0 to 55 and 50 to 105 foot scales were utilized. C. Sub-Bottom Profiler An EG&G Model 230 UNIBOOM High Resolution Sub- bottom Profiling System, which includes the Model 230-1 UNIBOOM sound source, Model 234 energy source, Model 265 hydrophone, and Model 3700 band- pass filter was used to provide data relative to the bottom and shallow sub-bottom. Data were displayed in analog form on an EG&G Model 255, 8.5 inch electrostatic paper recorder. The system was operated at a frequency range of 400 to 3500 Hz at 300 joules of power. Do Sidescan Sonar A KLEIN Model 520 Hydroscan System consisting of the .Model 425-001A Sidescan Sonar Towfish and Model 521 dual channel recorder was used to provide an oblique view of the sea floor 100 meters either side of the towfish. The-sensor emits 100 KHz signals from tranducers mounted on either side of the towfish with a horizontal beamwidth of 1° and vertical beamwidth 'of 40° tilted down lO°~'from horizontal. Sensor tow distances were measured 'from a sheave on the vessel back deck less than 1 foot aft of the navigation antenna. The transducer towfish was towed from 25 to 40 f-eet aft of the' sheave. The returning signals were displayed on 11 inch recording paper at scale-divisions of 15 meters. IV. RECORDED RESULTS A. PositioninE The Mini-Ranger IV is a fully automated system with an internal data processor. The data processor computed these range solutions for each fix and provided a hard copy listing of these post plot positions in Alaska State plane coordinates. B. Fat~Ometer The data has been reduced to mean lower~low water (MLLW) by applying corretions based on N.0.A.A. tide predictions and tide observations during the survey.. The results are good, with line intersections tying to better than 2 feet attesting the navigational accuracy. Figure B-1 in Appendix B presents a sample of the recorded fathometer data. There are no indications of surficial gas seeps on the fathometer record. C. Sub-Bottom Profiling Profiling results have been corrected for towing geometry, layback and water velocity of 4900 feet/sec., and tidal effects. The records exhibit very little penetration due to the hard materials exposed on the ocean floor. 0nly to the west, where up to 40 feet of sand and sedimentary materials are encountered and in the east and south central zones where up to 10 feet of softer materials overlay a very hard layer is there any penetration. Figure B-2 in Appendix B shows a portion of the high resolution boomer data for line 38. D. Sidescan Sonar The recorded results have been corrected for Layback and towing geometry. The records clearly exhibit the sand waves in the western position of the survey area and the boulders or rock outcrops existing in the-eastern section of the project. Figure B-3 shows several boulders, approximately six feet high, recorded along line 14. Figure in Appendix B shows a portion of line 28 which depicts an area of sand waves. V · INTERPRETED RESULTS Ao Post Plot Locations - Plate I The base map is a computer plot of the post-plotted navigation data at a scale of 1" = 500'. The map is a plot of Alaska State Plane Coordinates, Zone 4, which are based on the trasverse Mercator Projections of the 'Clarke Spheroid of 1866. B. Bat~ymetry - Plate II Water depths reduced to mean lower low water vary from 12 to 68 feet. The major feature on the bathymetric map is a channel or trench system that trends in a north-south direction between lines 16 and 17 from the north boundary of the survey area, south to line 20. It then swings east and terminates at line 18. The trench is incised as much as 30 feet. The southeast corner of the survey area is relatively flat with ~an average depth of. 15 to 20 feet MLLW. The area through the central portion of the area appears to have a northeast-southwest ~ orientation and is quite uneven, with a depth variation from 20 to L0 feet MLLW. Here, the bottom appears to be very hard and should readily support a gravity structure such as a jack-up drilling rig. The northwest corner of the survey area exhibits a very smooth surface of soft sedimentary materials that changes to sand and sand waves of 2-3 feet height to the northwest. The sea bottom dips from L0 feet to almost 70 feet MLLW in the northwest corner of the area. ~ C. Sediment Horizon and Shallow~ Structure Contours Because of the extremely hard bottom and low power output of the high resolution boomer, it was impossible to obtain sub-bottom penetration sufficient for definition of Sedimentary layers. Deepest penetrations (to about 35-~0 feet) were in the west and southwest portions of the survey area where the boomer data indicated regularly bedded sands/marine sediments. These layers extend from the surface to a depth of 35-~0 feet at the extreme western edge of the survey area. Glacial deposits characterize the bottom in other regions of the survey area. D. Surficial and Sub-Bottom Hazards - Plate III Data from the side scan sonar records has been used to establish the trend of the valley or trench system in the northeast region and to detail outcrops and aretal features. No where on the records is there evidence of gas seeps or man-made objects that might be hazardous to developmental projects. VI. CONCLUSIONS AND RECOMMENDATIONS The recorded data reveals no indication of ~urficial gas seeps or faulting. The valley system in the central northeast portion could be fault associated, but is more likely an erosional feature. Areas not recommended for developmental operations are: The valley system above. 2. The northwest corner of the survey area, where sand~ and sedimentary materials would provide a very unstable foundation for gravity structures (here there is a possibility of slope instability and the high inlet currents could have erosional effects'at the platform leg-ocean floor contact). Near outcrops or pinnacles in the east central and northeast portion of the survey area. The steeper sloping areas on the northeast boundaries of the survey area. The recommended areas would be: The central south and southeast corner of the survey area. 2. The central area, west of the valley system and east of the sedimentary deposition, with due care for the ~bottom undulations. APPENDIX A SURVEY SUMMARY AND NAVIGATION LOG FIELD LOG SUMMARY During the period of 24-25 October 1983, four Mini- Ranger transponder stations were installed, the survey and navigation equipment was installed onboard the survey vessel, and the vessel was launched. On 26 October 1983, equipment installation and testing was completed and the survey commenced. Lines 1-3 were completed using sldescan sonar, fathometer and sub-bottom profiler before the increasing sea state forced an early end to the day's operations. Operations were cancelled On 27 October 1983 after traveling to the survey area and discovering unsuitable sea conditions (6-7 feet). Lines 4 and 5 were completed on 28 October 1983 before discontinuing operations due to sea conditions. Traveled to the survey area and deployed sidescan sonar, fathometer and sub-bottom profiler on 29 October 1983. The sub-bottom profiler~ (Boomer) power supply failed prior to start of survey. Aborted survey to repair equipment. No survey operations took' place on 30 October 1983 while equipment and spares were located and repairs were affected. Continued with survey on 31 October 1983. Completed lines 6-18 using sidescan sonar, fathometer and sub-bottom profiler. Line 13 was aborted due to strong current. Traveled to survey area on 1 November 1983, before discontinuing operations due to sea conditions. Traveled to survey area on 3 November 1983, and deployed equipment. Sub-bottom profiler failed priot to start of survey. Attempted repair and redeployed (HRB) but sub-bottom profiler failed again. Attempted repair again, but'was unable to correct the problem. Aborted survey and returned to dock to repair sub-bottom profiler (HRB). Commenced survey again on 4 November 1983, using sidescan sonar, fathometer and sub-bottom profiler. Sub-bottom profiler failed, but completed lines 22-32 using sidescan so'nar and fathometer only. Repaired sub-bottom profiler in EG&G workshop on 5 November 1983, then traveled to survey area. Completed lines 33-39 using sidescan sonar, fathometer and sub-bottom profiler. Unable to continue to to very strong tidal current. Completed survey on 6 November 1983. Lines 40-44 were run using sidescan sonar., fathometer and sub-bottom profiler. Demobilized vessel and equipment-on 7 November 1983. NAVIGATION LOG COOK INLET DRILL SITE SURVEY Line Events Start End Time Start End Offset Side Scan Direction Meters Lay Back Comments OCTOBER 26, 1983 1 1 23 2 24 46 3 47 69 1300 1319 1322 1330 1334 1350 EAST WEST EAST 900N 750N 600N 40' 40' 40' WEST HALF WEST HALF WEST HALF OCTOBER 28, 1983 4 76 100 5 101 124 1222 1236 1241 1254 SOUTH NORTH 0 150E 40' 40 ' 6 125 138 7 141 166 8 167 191 9 192 216 10 217 242 11 243 267 12 268 296 13 297 300 14 301 330 15 331 360 16 361 386 17 387 412 18 413 438 1033 1042 1051 1102 1113 1125 1131 1142 1150 1203 1209 1222 1318 1348 1351 1352 1402 1430 1446 1505 1519 1532 1535 1546 1549 1604 OCTOBER 31, 1983 SOUTH NORTH SOUTH NORTH SOUTH NORTH WEST EAST WEST WEST SOUTH NORTH SOUTH 300E 450E 600E 750E 900E 1200E 900N 750N 750N 600N 1500E 1800E 2100E 40 ' 40' 40' 40' 40' 40' 40' 40' 40' 40' 40' 40' 40' EAST HALF ABORT DUE TO TIDE EAST HALF EAST HALF NOVEMBER 2, 1983 19 454 501 0949 1026 20 502 547 1028 1053 21 548 595 1058 1123 EAST WEST EAST 450N 300N 150N 40' 40' 40' Line Events Start End NAVIGATION LOG COOK INLET DRILL SITE SURVEY Time Start End Offset Side Scan Direction Meters Lay Back Comments 22 596 645 1040 1114 23 646 694 1117 1135 24 695 744 1139 1206 25 745 769 1218 1228 26 770. 819 1243 1309 27 820 ' 842 1317 1329 28 843 867 1334 1346 29 869 892 1352 1405 30 894 940 1418 1432 31 941 987 1440 1526 EAST 900S WEST 750S EAST 450S ~NORTH 2400E WEST 0 ~ SOUTH 900W NORTH 600W SOUTH 300W EAST 600S WEST 300S NOVEMBER 5, 1983 30' 30' 30' 30' 30' 30' 30' 30' 30' 30' NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM NO UNIBOOM 33 1037 1079 1155 1214 34 1080 1128 1218 1248 35 1129 1177 1256 1319 36 1178 1201 1328 1338 37 1202 1226 1342 1356 38 1227 1251 1403 1415 39 1252 1301 1440 1456 WEST EAST WEST NORTH SOUTH NORTH EAST 150S 450S 750S 900W 600W 300W 300S NOVEMBER 6, 1983 30' 30' 30' 30' 30' 30' 30' 40 1302 1231 40 1340 40 1348 1320 41 1349 1397 1331 1359 42 1399 1421 1408 1419 43 1422 1445 1432 1445 44 1446 1491 1459 1603 EAST EAST WEST NORTH SOUTH WEST 600S 600S 600S 900S 0 2400E 0 '30' 25' 25' 25' 25' 25' 25' APPENDIX B SAMPLE DATA 170 IOO FIGURE B-1 FATHOMETER LIN~ 17 :~ ,~.,,.., _._.~, go t i II, II ,1. ,itl,,',l!llll'll F~CU~ s-2 ,' HIGH ' RES OLIJT ION. . . BOOMER LINE '38 '" · ."("i"~¢ ,. ~t~'ll.,;i'~ll¢;i.~ !.! BOULDER SIDE SCAN SONARJ LINE 14 . ~ ~' ., ~ -~.! ~-BouLDER ,. , , . 'l # ; ¸Jr SIDE SCAN SONAR LINE 28 · . o. APPENDIX "B" Drilling Vessel Description '0 0 DA~A SF'-Ei FOR SELF ELEVATING (.A~K-~.) RIGS Da:e:. 9/11/81 A. Contractor Na~e: Kevdril Company ~ Meadquarters Address: 2000 Capital Bank Plaza, 333 Clay Street, .Houston, T~X Ce Telephone: (713) 754-311~a!ex/T~q(: 762-797 Cable: N/A Local Office Address: N/A Telephone: N/A Telex: N/A .R/$ Name/Number: KEY SINGAPORE Previous Names/Owners: N/A, new rig TWX: N/A ClaSs.(A~S,Lloyds, DnV): ABS ~_'-~ 1-A Insured Value: N/A Country of Registry: U.S.A. Dace of Last Condition and Valuation Survey (attach copy): New const. - Date of Last Annual (Insurance) Condition Survey (attach copy): New const. Da:e Nex: Classification Survey Required: Early, 1983 · Does Unit have current Certificate of Financial Responsibility? Pla:form Specifications: Hull Dimensions: a. Length (not incl. Helipor:): 243 ft. Yes f, b. Beam: 200 ft. c. Re!gb: (bottom Co main deck): 26 ft. d. Height (,Main deck co top Jackhouse): 26 ft. Independent Legs Only: Diameter of Spud Cans: 46 ft. Height of Spud Cans: 24 ft. Total Support Area: 5430 ~q.fc. HAT supported Un/cs Only: Length of Mat N/A ft. Width of Mat N/A ft. Heigh= of ,u~t N/A ft. Tote! Suppor: Area N/A ft. Maximum allowable !nclinatiou of M~ when jacked¥on ':-~' ~' : · locaclon and drillim~ N/A degrees. Le_~s: a. :;o. of legs: 3 ; ~. No. of vet:ica! chords.der leg: c. Overall Leg Length: 410 fr.; d. Leg Length (ocean :ow): 310 fr.; During Ocean Tow: 12.63 fr.; e. Leg Length (field cow): ' 410 ft.; During Field Move: 23.81 ft.; Leg Dis:ance below hulI Leg Distance below hull f. Maximum. allowable leg penetration: 75 fr.; g~ Bo=:om Suppor: Jetting Equipment: (Check) Overcan: N/A Low Pressure Rating: N/A High Pressure Rating: N/A Undercam: N/A 'Low Pressure Rating: N/A High Pressure Racing: N/A 3. Temperature Specifications: Minimum Air Tempi eF Minimum Water Tempi Jacking System: Mfg/Design: No. of Jacks or motors per' Chord: 4 Total Jacking Capacit7: 7600 To~al Holding Capact~-;: 8225 - Jacking Speed (lowering legs): 1.5 id°F 14°F 28°F 28°F ~ , LeTourneau Jacking Equip._ t4°F 28°F Per Leg: cons 15200 kips Cons 16450 kips ft/m~n. 'Jacking Speed (eleva=ing hull ac maximumweight of 1.5 ft/min. Grade and Yield S~rength of Steel Grade , , 7600 Paul Borg Brad Patterson Lewis Wells · iel~ S:reng=h ksi Derrick: A-36 36000 min. N-20 70000 Jacking System_: ~ . 42000 Deck Places: Structural Members (hull): Grade A ~4000 ,. 34000 Structural Members (deckhouse): Grade A 34000 70000 85000 85000 Legs: Vertical Chords; N-20 N-30 M&N Bracing Members; '0 Designers' Survival ¢ondf:ions For Various Ua:er Depths: .. Wa:er Depth (ft.) 300 Drilling Mode 200 -I00 1-mln. i0 =e:er eieva:ion wind speed (k:s); 100 mi/hr Extreme Wave Height (ft.); 35' Period '(sets.); 15 Wave length if:.); -- Wave Crest Elevation (ft.); -- S~orm Surge (ft.); 0 Tide (ft.); 0 Air Gap (f:.); 30' Curren:: Surface (.k:s.) 0 Bottom (k:s.) ' 0 Profile (e.g., straight, parabolic): N/A , Subs~ruc:ure Position (check one): a. Area SUrvival Condinions for: Rurricane Season (Gulf of Mexico) Or Year ~lound for: M/n/mum Water Depth: 25 (check one) . 125 mi/hr 100 mi/k 50' 40' 15 15 · ,, . 0 0 0 50' MaximumWa~er Depth: 300 ft. (assuming zero leg penetration) 0 35' o 0 0 0 OUt · . ~eturn Period (yrs.): Water Depth Cfr.): l-min, lO. meter elevation wind speed 10 50 IO0 gxtrema Wave Meight (fro): Period (secs.): Wave Length (ft.): Wave Cres~.glevation (ft.): S=or= Surge (ft.): Highest Astronomical Tide (ft.): Air Gap Current: Surface (kts.); Bot:om (k:s.); parab~iic); Subs:rue:ute ?.si=ion (check one); ~n Area Survival Condi:ions: .Non-Hurricane Season (Gulf of Mexico) Or Seasonal: ~ (check one) .MinimumWater Depth: Max/mum. Water Depth: Return Period (yrs.): Water Depth (f:.): . . 1-m/ri. 10 me:er elevation wind speed (kts.): 'ft. (assum/ng zero leg penetration) 10 50 Wave Height (ft.): Period (secs.): Wave Length (ft.): Wave Crest Elevation (ft,): S~or~ Surge (ft.): Highest Astronom/Cai Tide (ft.):- A/r Gap (ft.): Current: Surface (kts.); ~ottom (kts.); Profile (e.g, straight, parabolic); Substructure position (check one) in Max/mum Hull Weight. Required a: Preload (kips): 25900 d. Soil Bearing Pressure at .Max. Preload (s.tons/sq.ft.): 2.3'8 e. I~quired Weather Window: Engaging Legs to Sea floor (Seas less than 5 ft.) Time requfre~ for Preloading (hrs.): 6 to 7 Lowering hull and disengaging legs from sea floor (hrs.):. 0 to 36 Weights and Centers of GraviTy: a. Ocean Tow (Across Atlantic or Pacific Ocean): 100 $. Shallot 'darer be)r'h (Area-Survival Cond±rions): N/A fr. Variable Load: N/A s.:ons Variable Load: N/A s.tons h. Deep r-r= er Depth (Area Survival Conditions): N/A ft. .~n~n,'- Variable Load: .Maxfnu~ Variable Load: i. Design .U.~ximum Preload: Design' L -lni:s Going on Location: a. Engaging Legs to Sea Floor and Eleva:ing .Hull: Avg. i0-min. Wind Speed @ 10-meter elevation: ,, .~ax. ·Wind Gus: @ lO-mater Elev: N/A N/A s. tons N/A s. cons 4850 S · Cons (Combined Conditions) N/A k:s. Provide a curve showing safe and unsafe operation as a function of wave height and wave period for both bow and beam seas. .~axinu= Surface Currents: N/A kts. If da:a are available for differen: soil shear streng:hs and :bus differen: leg pene:ra:tons, provide :ha above da~a for.the different conditions. -. _. b. Lower~.ng Hull and Disengaging Legs from Seafloor: (Combined Condi:fons) Avg. lO-:~n. Win~ Speed @ lO-me=er Elev: N/A kts. . ';-,; , ~h~X. Wi~ Gust aZ 10-mater Elev: N/A kcs. : . Provide a curve showing safe and unsafe opera:ion as a func:ion of wave height amd wave period for both bow and beam seas. Seas less ~ f~. Max/mum Surface Current': N/A kcs. If daze are available for different soil shear s:reng:hs and thus different leg pene:rations, provide the above data for :he differen: conditions. :0. Quarters to Accommodate: 88 persons · Quarters required ~; rigcrew & rig owner - supervisory Personnel: 65 persons . ~1. Helicopter Deck: 70 fr. x 70 ft.; Can handle followin~type helicop:er Sikorsky S-61 Helicop:er refueling capability: None Static A~g!e of Inclination in worst direc:ion before dipping helideck pla~ing: 20 degrees. 12. Sewage. Tree:lng Unit: ~Lfg.: Demco Capacity: 13. Drilling Slo~: N/A fr. wide x f~o long. 14. Mooring %vstem: No. of Anchors: 4 , Anchor Weight: 10,000 lbs. 160 man .. "v b. Ce de Lightship Legs (specie' position) & submerge4 ma:, if applicable Spud Can or mat wa:er (if carried) Fixed & Basic Loads & Subs:rut:ute ,Maximum Variable Load To:al Transit Condition Transl: Draft Lone Moves in the Gulf of Mexico: Lightship Legs (specify post:ion) & submerged mac, ii applicable Spud Can or ma: water (if carried) Fixed & Basic Loads & Subs:rut:ute Maximum Variable Load . Total Transi: Condition Transit Draft M/nimum Draft (Legs fully up) Field Moves: ,. Ligh:ship L~gs (specify position) & submerged ' mac, if applicable Spud Can or ma: water (if carried) Flxed& Basic Loads & Substructure Maximum Variable Load To:al Transit Condi~Lon Transit Draft: Minimum Draft (Legs fully up) : Max. Variable Load (Raising & Lowering): Maximum Variable Load (Drilling): M_tnimum Variable Load (Design-Survival): Maximum Variable Load (Design-Survival): '&eight (s.:ons) KG ft. 8236 -- 2575 -- Free flood~e 764 -- 200Q -- 10500 - 54 27.5 · From kee~ Weigh: (s.:ons) 8869 Comments 3340 --- -- Free flooding type 764 2000 10500 27.5 27.5 65.2 -. ft. , From Weigh: (s. tons) KG fd. 8869 -- 3340 -- Free flooding type 764 --- 2000 -- 10500 65.2 Commenl~s ! -] From keeJ 27.5 ft. 27.5 ft. 2000 s.tons !000 sltons 0 s. tons 2000 S · ~ OhS D. -r .~nah¢: Line Leng:h: 2300 .. Anchor -.ype:_ Stock!ess Hoi~i.-.~ Capaci~' of fr., $~all Load on each winch: Soil Type and ~-eigh= of anchor buoys: Cylindrical Can Anchors ~e run or recove.+ed by conventional Y'~s X No Mobilize:ion: 1. Self-propelled: Yes X. No If yes, speed k:s in calm sea. Propulsion assis:: Yes X No If yes, No. of =hrusters: . rated HP of each: ~p. Tow requirements for field moves: No. of tugs: 3 Min/mum brake HP of each: 5000 ~p Tow speed: 5 knots in calm water Max/mum surface curren= uni= can be held in with =his HP with legs jus= above bottom: Wa~er De~th (f~,~ Current (kts.) Does tis provide chain pennan:s for :ow and hook up? Yes No X Clench pla:es: TTpe Desi&nLoad Number & (s.:ons) . Location Smit 100 100 100 3-bow 1-port stern 1-stbd stern ,Smi,t Smit Tow requirements for Ocean Tow: No. of tugs: 1 Minimum. brake HP of each: 15000 Tow Speed 5 kts. in calm water.. Max/mum Env~.ronmen:al Condi:tons for Towing (field moves): Avg. iO-m/n ~ind Speed a: 10-meter Elev.: N/A k:s. Max. ~ind Gust @ 10-me=er Elev.: N/A kcs. Max. ~'ave Height: N/A ft. Significant Wave Heigh::,N/A Corresponding Uave Period: N/A sees. lack Cranes: i. Capaci~': 40 Boo: Length: 100 2. Capacity: -- Boom Length: -- short :ohs ~- ~nl--um radius plus 30 f-. ft. Cradle Provided: Yes X No short sons at :inimum radius plus 30 ft. Cradle Provided: Yes -- No -- ,, Drilling Equipment: [. Ra~ed Drilling Depth: l. Draw works and drive: 30000 National 1625 DE, GE 7525 (4 total) 3. Auxiliary Brake: Ballot E1 Mago 4. Main Power Plant: EMD 16 Cylinder (3 total) 5. .~ain .~ud Pumps (No., Type, & KP): . . 2 National 12-P-160, 1600 HP each 6. Mud Mixing Pumps:. 6 x 8 Mission Centrifugal (two) 7. Shale Shaker: Brandt Tandem Screen :: .....' ,,, fl Desander: Brandt ' ~-' 9. Desflter: Brandt 16 Cone 10. Degasser: Swaco 11. Mud ~oni~oring Equipment.: Provide~ a detailed description of all contractor suppplied flow-show and pi: level recording equipment and monitoring sta:ions: Warren Flow Show (Plowline), Warren Tank Totaliz-ers (4 Pits) 12. BOP Equipment: 13 3/8" 5000 psi hydril annular _ 13 3/8" 10000 p.si Cameron Double Ram 13 3/8" 1~000 psi C.~meron Single Ram 13. Diverter Schematic: Include all spools, lines and valves. Indicate ~he size and working pressure of ali equipment and how.~he sys:em is actuated, i.e., at driller's s~ation with valve opening before Hydril closes, lines open a~ all' times, etc.: )q 1./2 MS~ 500 Hydril 14. Ro=ary Table: 15. Substructure: National Max. Support Load: 900,000 LeTourneau (Variable w/1250 kips max) lbs. ..~ .. . ].7. 1.8. 1,9. 20. 2.1. -ce:back Load:- yms :/Def.-lek: 450,000 lbs. Pvrami~ Deslg= "~--~ Speed: 100 k:s. empty.. 30 -~ k:s. w/full sea. back Maximum Ecok Load: 1,044,000 lbs. For Cantilever Provide curve showing load limits on cantilever for various distance~ canted overside vs. wind speed loadings. Can equal loading be maintained on all legs with camtilever fully-outboard by dis:ributing available variable loads? Yes No X .' ~ no, how close can LCG be maintained to the centroid of the legs? ft. Cementing Unit: Halliburton -electrical. Logging Unit:' Schlumberger OSU-F Mud Logging Unit: Space add Hook-up pr.ovided only · Drill Pipe amd Drill Collars: . 10r000 ft. 5" Grade "E", 4000 ft 5" Grade 27- ~ %/2". D-C, 24-8" D.C. Drill Stri=g Handling Tools: For contractorls tuhulars 22.. Fishing Tools: For Contractor's tubulars 23. CaSing Man~!ing Tools: None G. Storage Capacities: I. Bulk Mud: 4000 cu.ft. l. Bulk Cement: 4000 cu.ft.. . 3. Liquid Mud: 1400 bbl. active system 0 bbls reserve system * 4i Fuel Oil: 3122 bbl.; Approx. usage 45 bbl./day drilling 15 bbl./day under tow' bbl./day under propulsion (self or assist) 5. Drilling Wa:er: 5000 bbl. 6. Potable Wa:er: 1500 bbls.; Approx. usage 170 bbl./day 7. Desalim/za.:/on Unit: Aqua-chem Capacity: 335 bbl/day *Active system can be varied depending on valve-setting. Mud not in active system will be in reserve system. Active plus reserve equals 1400 bbls. Two SSB 1000 watts, multi-chan marine radio, · ~, aircraft radio, five portable marine radios Envlronnen:al Moni:orinE Sys~eus: !. ~inds: Instrument: Yes, but model unknown Type Readout: Range: 2. Waves: Ins:rument: No Type Readout: Range: Currents: Instrument: No Type Readout: ,, , 'Range: ' knots 4. Air Temperature: X Yes No 5. Water Temperature: Yes X ,No 6. Wet Bulb/dzy bulb: Yes X No 7. Barometric Pressure: X Yes No ' , Means of Combatting Superstructure Icing.: None Winterizing: Enclosed tic floor witP_ heat, enclose monkey board, heated, quarters L. Diving Fac£1i~ies: None H. Other Equip~ent, Machinery, l~g Description: See Ap-~endix A of contract with Chevron Personnel Survival Equipment: 2. Wae~r~_ra¢~ 44 mad l i '¢,~ hoat_~. 4 - 25 ~an B.F. Goodrich Davit launched rafts ...... 5 - 20 man Swetlick inflatable life rafts. .. A plax of :he rig showing :he ioca:ion and descri~:ion of all firefigh:$ng sy.s=emSo The ~escri~:i:n of :he sai: ~a:er sys:em should include pumps, :¥pe hose, and nozzles. ~e gescrip=ion cf :he chemical ex:in~aishers should include :he ~-vpe chenlcal, weizk:, and class of fire for wh'ch ~n:a~d~d. Not available as'yet. ?olin:ion ?revez:ion $cheza:ic: .. A p!am view azg/or eleva:io: view of :he rig describing deck drains and sumps and indicating amy. equlpmen:.:?m: includes drip pans and ~he procedures for handling ~ollution con:aimed by drip pans or sumps. Describe any special equipmen: or procedures used ~o handle oil-base mud if applicable. Vessel Descrip:ion: 1. Include Pie:ute of Vessel. l. Schema=it of drilling deck and layou: of mud equipmen=, pipe racks, logging cementing equipmen=, s=orage area. 3. Schema=lc of side view of rig Showing mud ma:, spud cans, legs, barge wi~h derrick, halipor:, Mooring $ys=em for Supply Boa~s: Two nylon lines tied to legs S~ Survey Raqmiremen=s before going on loca=ion: Ba~hyme~r!c: ~ $idescan ~ Diver Walk: · Coring: Some locations Magnetometer X T. For sloc type units, specify type of Texas deck ff:~ed & rig up or rig down ~ime required after or before ~ow: N/A U. Name of Survey House which would need ~o approve !oca~ion if uni~ con,racked for (e.g., Noble Den=o'n, J. ~. Tynan, Ma~=hews Daniel) Noble Denton · PO~I Afl ClaM' ; .P(xl &kdlh~ C~lae .. Md~rllll4#l J.l' h~lll#,,#, |'l.J,! I?11 IJ.d.t( D~t FlOo~ S~J~s' SIrucIuIO -' SutJ -Base . DtawwMko ~h41t M V- Uoo* C,tnltk~vff P~Pe ~'d4 L' (3Lq~llr l, Ill I,,tl~ v, ,Il, 'l / · OUTBOARD PROFILE . MAIN DECK LAYOUT · PLATFORM 158 i ~'~,-o.- 9'-3 112 MAIN DECK LAYOUT Bow C~e- ~' -Port Aft C~a~ ,o . L JL..J . ~i& Wt~ A~lcno~ Rack ~ Fa~rlead PLATFORM 158 "~' report Aft Crane ._ . . -. MACHINERY DECK LAYOUT Diesel Fuel Centrifuge See Cheat, · .. . . WU'. Maker Raw Wit. Air Recvr: ~ A~r Corr.. 75 480V. F. lev. $W81 PLATFORM 158 . :/~ ~ ~aix ! Chest Crane Column ~'Workbench 3re Tk. Li~ting F.~e Air Handang Unit Workbench . INNER BOTTOM TANK LAYOUT LEGEND Tk. NO. 1 Full OeDtl~ Multi Pu~3ose Pre~oacl or Drdl Water Tk. No. 2 Fu~ DeDt~ M~i Pre~a~ or Dr~ Water Tk. ~. 3 F~ D~ ~e~s~ ~. ~. 4 F~ D~ ~e~ad Tk. No. 5 F~ Dept~ O~ Wat~ ~ Tk. NO. 6 F~ D~lh D~ Wal~ ~. ~. 7 F~ 0~th ~e~ad ~. No. 8 F~ D~ ~. No. 9 D~ Wat~ ~ ~ 10 Drd Wat~ ~. ~. 11 Fre~ Wat~ ~. ~ 12 Fre~ Wat~ ~. 13 VoM ~. No. 15 ~ Oo~om D~ Wat~ ~. No. 16 ~ Bottom O~a Wat~ Tk. No. 17 Fu~ O~ ~. No. 18 Fuel O~ ~ No. 19 F~ Bi' ~. ~ 20 Fu~ OB 'r Tk. No. 17 .... Fu~ 01. No. 23 Void 'N~. \ 31 Vok:l Tk. No. 37 Fu~ Deem Prek~ad Tk. No. 39 ProJoad PLATFORM 158 I, - . NO.-13 Void . '- . . No. 14 Void 12' ' ' · · · · 16 . Ne. 27 Void 17 N~. 28 Void 18' 'rk. No. 2g Oi lg 20 ' No. 35 Void 21 22 23 24 25 'rk. No. 41 No. 34 Void Tk. No. 40 26 Fuji Deom Prek~d Deem PrMoad 27 LEGEND TI<. No. 21 Fult Deem . 'rk. No. 22 Fu~l Oepfl'l Preloe~ No. 23 Void No. 24 NO. 25 Vo~ No. 26 Void No. 27 YoM . .- . NO. 28 Vc~d Tk. No. 29 OVty Oil" No. '30 Voi~ ' No.. 31 Voi~ _ · . Yk. No. 32 ~ Walm' . Tk..No. 33 Drill War No. 34. Vmd No. 35 Void : .... Tk. No. 36 Futt DeDm PrMoad Tic NO. 37 Fu# OeDm Tk. NO. 38 Fug DeDm 'rk.._No. 39 Full DeDm Tk. No. 40 Full Deem Preloac~ 'rk. No. 41 Ful Del3m PrMoa~ DrtlI.Watar. . Tk. No. 18 No. 24 Void . _ . . No. 26 Void /. No. ~0 · / / Tk. NO. 38 Fu~ Depfll Preload SAFE Pb~TFORM SINGLE AH?LITOBE. ROLL ANGLE ANB PEEIOB FOR GOING ON LOCATIOM ' 'lttl 1,1, l'lO, // . 37 , __ __ '~ ~0 , "-' -.-..-.~-'/ :1 "~:1 ?':' '1 - I . ' ' " "-.. 12.0 -8.0 ' -~.0 - -l.O ' - . : ~.. D~oc~ce Scar~a~ of Hu~t O~sc~e Port '' C~erlL~ Co Ce~cerl~ ~ ~rliae ~ -.-..~-~,,-.,---'-.--.--~ - -.-.-----'---~ -I ". (o.' ~-:.,'. __ d aced r : ~Ca~ (kips) : *' . ' '- .. - . 1~l. Ch~n the l:Lm(cs al)ove~ the mx~""" ~.cam-"~ne~nC ~Mt~ Book Losd Setback. . Ftpe bck %nd£vJ. dua! ~Lpe Rack ~mr Furntshed Kqut~en~ 900 ktps &:~O kips APPENDIX A PART I: CONTRACTOR FURNISHED EQUIPMENT Drilling Unit Key Singapore Self-elevating, three-legged class 116 cantilevered LeTourneau design 2. Drawworks 3. Drawworks Brake 4. Mast 5. Traveling Block 6. Hook 7.. Travel Block 'Safety · .. .-' ,...: . ... .... · ~.. : .... i.:. .- · .- . .... ~ . :. . .: · 8'". Swivel · /:. . ....._ : : . .->... ... ~j~. _ 9'." '-:Rotary' Table ...... · · · 10.. Power Plant 11. Emergency pOwer- . . -. · . · 12. Air Compress¢-r _.- .. . · " 13..: bit. Dryer · National 1625____~DE driven by two GE-752 motors . Baylor 7838 Elmagco brake Pyramid'147' high X 30' X 30' base having static hook load.' "- Capacity of 1,044,000 POunds National 660 H 500 " Byron Jackson 5500 Nat~ona~ C-3'7~ ~ndependent · hroe (3)' ~B model i6~8 at 2200 bhp CAT model '3412 ~o power 320 ~- ~o-{2) Sulla~r model single ~.state' rota~ screw Model PS-1000 refrigerated.rated 14. Emergency Air Compressor Model B552/ST?A powered by Lister diesel engine 1So Mud Pumps ' Two (2) 1600 hp. National 12-P-160 each driven by two (2) GE-752 · ' motors, charged b~ 6 X 8 centrifugal~ 16. Shale Shakers Two (2) dual screen Brandt 17. Desander Two (2) Brandt each having two cones ... 18. Desilter 19. Sand Cleaner One (1) Br~t having 16' cones Brandt dual having 16 cones with- underflow discharging onto ultra-fine screen 20.. Mud Tanks Two (2) separate systems: 1. three main tanks and slUgging pit located in hull 21 · Agitators 22. Pit Level Control .. · · 2. five small capacity tanks located on m.~in deck ' 3 rip tank Six '. (6).:. ~:' Brandt. mode1.~ MA-10: .. :. Warren' s Barrel-O-GraPh,.. Two (2). ~- ' ' separate systems, complete with, ' ..'- recorders: - 1, .-three pit totalizer 'for tanks- .... '" - 2*-" Singie pit indicator for 24. Chemical Mixers : 'Two-(2) jet mixing hoppers - ' .. ':" ,. : one. having 70 cu. ft. bulk tank-i--i'~ :. · '"- '' mounted over hopper . _--.-...~ - ' ' " -":<';?-~'~:i:; - 25. Mud Laborat0rY .... _ . ,. . _- .: -.. . :: : . ---: . .... !_ 26. Distillation Units Two (2) Aqua,Chem model S300- · ~-:.~ .._.,:.._ · :. -._ . "::.' " -" 300-. gph. per unit ' -~ .:.- · - 27. Dry.. Bulk' Storage Eight (8)' Haliiburton tanks each · '. -. ":. " ~ :: "..:.:: i.'::i '- -.'ii"~:"'wit]~.I000 ft, 3 capacity, One · .~ . '- . ..'/!.i.'~i:":_i:.":.'i.~ :-'i '~!: transfer tank of 150 ft.3 for - .-. -. · ' .. '.-.:'.-"-....:-' i::- - i handling sack material- . ' - -:-~ . - . './-: _ ~ _ . - . . - .. · - 28. Deck Cganes - FOur (4) L~ToUrneau 45 ton cap~-c~]ty · .~ . . 29. Weight Indicator. Martin Decker model ~..~-IO0-P . . . ~ - . . 30. Deadline Anch°~ NatiOnal type EB - ; ......... -' 31. Drilling Line 1-i/2'" Size 32. sandline 16,000 ft. of 9/16'', .diameter 33. Standpipe and Rotary Hose ,...~,_ . -. _ Dual system havin~3 5000 psi ,wo~%~ing pressure . -'- -:: .... :/r--~,' · ~ - , - ~'~ ~ .: . 34. Kelly. Spinner 35. Kelly International model A6C-2 5-1/4" hexagonal by 40' length 36. Drill Pipe 1. 10,000 ft. of 5" OD grade "E" -X 19.5 ppf. having 6-3/8" OD tool joints X 5" XH connections 37. Subs 38.. Inside Blowout' Preventers 39. Drill Collars 40.. Fishing Tools 2. 4,000 ft. of 5" OD grade "G" X_ 19.5 ppf. having 6-3/8" OD" toOl joints .~nd 5" XH connections -..- : ,~_ ' . 1.- -Crossover for 'ContractOr.' s drill string ..... ~.. 2.. Bit subs bored to accept float Units to fit Contractor's drill pipe and drill collars (Chevron. specs.)' . 1. 27 - 6-1/2" OD X 2-13/16''. ID' -'" 41. Wire Line Unit· · . :. Deviation Instrument · . ' ..- 43. Drilling Rate'ReCOrder . .- 44. ~oke ' M'anifold "~ . .- .~. 45. Welding Machine 46. Environment. InstrumentS Overshots and taper .tap to 'fish.~' for Contractor's drill pipe and -- - r.. drill collars ~ ..~-~--~ -~ -. Mathey 25,000 ft. of 0.092''' line:-'- One (1) Totco 0-8 degree and .. :. _~-.- -_one (I) Totco 0-16 degree two- ~int ' recorder -' TotCo seven pen model. :~ ~'' '~" '"~;'?~' 3-1/16" X 10,000 psi w~rking pressure One (1) Lincoln electric~ and~'' '"' one (1) Lincoln diesel - . . _. Anemometer, thermometer and . :~ :: .... ~.. . . -- _ . . -. . I' long Zipped groove IF' connections long- zipped. ~6-5/8 API regular* connectiOnS~*'~ 48'. Flo-Sho Mud Flow Warren pneumatic 49. Rotary Torque Gauge Totco 50. Drill Collar Torque Drilco EZ-Torque 51. Cup-Type Tester 52. Degasser · 53, Blowout Preventers Cameron - __ Swaco Make HYdril, type. MSp, size-' 29-i/2-""i_ test_ 500 psi _ - - 5, 000 ~si working ~resSure -;: , Make Cameron, 'type "U" single, · .- . size 13-5/8", 10,000 psi working . . pres sure - Make Cameron, type "U" double, · .. · _ ! - · : - · · .. ..-" ;:-" . . . s~ze_13-5/8', 10,000 psi_ working--:-:: · . ' - _ .--':'; -.';-;~:'... ' ." '. .. · pressure-. ' ' ' -' ~'. i'. -.:. .... ' .;.-~' "~:" .. '."-'-'-..' ::.':/...~.'~;~?;?.~:.:'~:'.: :"~'~::<%~'~:~'.."- tO-.; Selecti.vely'.-divert.-flow-~.t0.~ dow~. .- .....-...~.~. ~ '.'" ~';:~-..':;--." '- ' ".'-";' ~";: '-. ~ wind.. Side'of rig' and flexible- .-~ '"""; '"" -"~'.-'".'.' '"'~</;.;~--~'. ' ~.' . ~'~ ~"-; connection piping below 29-1/2' 57. Air Hoists · .._. Normal ~replacement of seals, ram __ · .: '~ rubbers and Other BOP parts .(excePt · .~-.i'."."-' ~ ...... 'replacement Hydrii rubbers ) · . ... . .. . ,- . . _ _ -. ;.. !'~;~;-.; -:~ .~-~ ./...... . . Pipe-~rams :to fit 5" and 3-1/2". drill '.. ' _ _ pipe' " : '.' ~'.'-. :'.-. .... B ams for' one closure 55. BOP Closing. Unit K°omey, re°del 243-20, gapacity 'gallons, 3000 pSi working pressure, . ' with electric and air powered ~pumps., and with remote station. -'Ail piping to be 1" steel with flexible. . . ' ' chicksan with 450oF temperatUre '~'/.. . packing ~ - . . 56. Intercom System Gaitr0nics "'~ :'~ '';~'~ ' ' : . .. Six (6) total Ingersoll Rand, two . . model KSUL mounted on rig floor, .'. 'two model KSUL mounted on sub-base, . .~...... and-two KSUL divided crum mounted · ' .- ¥--- ' on sub-base for operation of · .-- . · 58. Helicopter Deck Designed to support a Sikorsky S-61 equipped with wheels, complete with lights, safety net and fire extinguishing equipment 59. Quarters 60. Generators Storage Capacity . Air conditioned acCommodations for 88 persons, two change rooms, two recreation rooms, two laundries, hospital, galley, music and intercom throughout Three (3) EMD model AB20-6 of 2625 KVA, total of 6600. hp, Drill Water Drinking Water Fuel Sack StOrage Dirty Oil 1500. bbl. - _-- · . 3000 bbl. ' · .... 5000 cu.ft' ' ':':~' 50. bbl. . _ . _ 62.. Anchoring Systeln Four (4) LeTourneau series W-1500TS' .. ' - -: 63. Anchors . FoUr (4) five ton ~:~-' 64. Pipe. Racks'..' .: ~...-capacity 400 ,/ft ~65 'Maxim~' Pipe Setback.. '~:_~~~fpound ~"'"~-:':~'":-~: .. or 178' s~ands of' ').~'~..~ '.-~'~"."~,. '-'-'.'-'./:~.:.~-~'~...~-/.--- :''_"~~a~~ pipe along with 9 Of 8" OD drill collars '"~' _ -_ . · _ _~ ;~ AdjUstable via air powered motor .." from 21 ' 7" - , to 42', 7" elevation _ . ~'. ~-. . To .skid over' drilling area of -' '-- . Adjustable via air powered air ..-'?'-:"~ ' '_. - .winches: mo~ted on sub-base .:... · . . .. . . - ... _- -' . . -.~ . 70. Drill Pipe Safety Valves Inside BOP valves for 6-1/2" and_ . 8" drill collars-and 5" drill . " pipe. .. :~, -.: . 71. S fety Signs,. stair- As required threads, Hats, Gloves ' - :' -'~ .... ~d Coveralls . . . . 72. Spare Parts Ail spare parts to keep Contractor's equipment in good operating order . - ~ - :_ ..- . ._ . _- ~' .. ~...-.; ¥ . . . . . 66. Maximum Rotary Load · ~7. Stabbing Board .. .. 68. Substructure-Movemen~ ·-. 69. Cellar Deck' 73. Cementing Unit 74. Waste Plant Halliburton twin HT-400 if Operator uses the Halliburton Company for cementing services. Otherwise Operator is required to reimburse Contractor for rental rate in effect and maintenance of cement pumping equipment. Demco suitable for 166 men normal usage 75 .. Li feboa~s 76. Permit Information -. Tw~ (2) Watercraft each .for 4~' ' . men - _. Rig and equipment information, emergency procedures and engineering ('technical) information necessary 'i .to.obtaining permits (2) Loc '2, 2 'thru 8) (3) Admin ff thru· 11) (4) ~asg ~ //- ,~, -~-~ (12 thru 20) (21 thru 24). 9~ 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.. 24. 25. '' REMARKS IS the pertain'fee attached .~...;., ............. ' ............... .. ' Is well to be located in a defined pool. ....................... Is well located proper distance from prOperty line ............... Is well located proper distance from other wells ................. Is sufficient undedicated acreage available in this pool ......... Is well to be deviated and is well bore plat included ...... ..... Is operator the only affected party ................. '' .... '''. Can permit be approved before ten-day wait ~. ~ .............. '' ''' Does operator have a bond in force .................................. Is a conservation order needed ...................................... Is administrative approval needed Is conductor string provided ......................................... ~ Is enough cement used to circulate on conductor and surface ...... :'''5~[~~. Will cement tie in surface and intermediate or production strings .. Will cement cover all known productive horizons .................... Will surface casing protect' fresh water zones ...... :~:~~:.. ~ Will all' casing give adequate safety in collapse,'.tensmon'and'ours~.. Is this well to'be kicked off from an existing wellbore ............. .Is old'wellbore abandonment procedure included on 10-403 ............ Is adequate well bore separation proposed ........................... Is a diverter system required ................... ~.. ~ Are necessary diagrams ~f diverter ~fi ~ ~;~; attached '..: .. Does BOPE have sufficient pressure rating -Test to-~'Z .~ psig ... Does the choke manifold comp.ly w/API RP-53 (Feb.78) .................. Additional requirements ............................................. ,, Additional Remarks: - INITIAL GEO. UNIT ON/OFF , POOL CI.~SS STATUS AREA NO. SHORE , , Well History File APPENDIX Information of detailed nature that is not pad. iculady germane to the Well Permitting Process but is part of the history, file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. , No special effod has been made to chronologically organize this category of information. .)
