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194-007
PLb-GGI-~G & LOC~.TiON CL~_R3~C~ R~,PORT State of Alaska 0iL & GAS CONSERVATION C~M~fISSION Well .~ame Cperz~.=r Rev-lew the well file, and-cc=men= on plugging, well head and !ocanicn clearance - urcvide loc. clear. Code STATE OF ALASKA , ALASKA OIL AND GAS CONSERVATION CO,v~MISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of well Classification of Service Well OIL F~ GAS F~ SUSPENDED N ABANDONED r~ SERVICE [] 2. Name of Operator 7. Permit Number BP Exploration (Alaska), Inc. 194-007 3. Address 8. APl Number P. O. Box 196612 Anchorage, AK 99519-6612 50-029-22414-01 4. Location of well at surface 9. Unit or Lease Name 3952' FNL, 995' FEL, Sec. 36, T12N, R15E, UM (asp's 721567, 5979863) Niakuk At Top Producing Interval ~ ii 10. Well Number 627' FNL, 571' FEL, Sec. 26, T12N, R15E, UM (asp's 716458, 5988321) ~''~'~ !'I~-1, NK-12A At Total Depth i ~' ~' -~;~o~.~-- ~ 11. Field and Pool 198' FNL, 819' FEL, Sec. 26, T12N, R15E, UM (asp's 716197, 5988743) 5. Elevation in feet (indicate KB, DF, etc.) ~6. Lease Designation and Serial No. RKB 60 feet~ ADL 34630 Niakuk Oil Pool 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. Or ~and. ~15. Water Depth, if offshore 16. No. of Completions Januaw 15, 1994 Januaw 29, 1994 Februaw 4, 2001 (P~'d)~ N/A feet MSL 1 17. Total Depth (MD + TVD) 18. Plug Back Depth (MD + TVD) 19. Directional Su~ey ]20. Depth where SSSV set 21. Thickness of Permafrost 15040' MD /9476' ~D 13590' MD /8683' ~D YES ~ No ~~ 1988' (nipple) feet MD 1900' (approx) 22. T~e Electric or Other Logs Run LWD, G~NEU/G~DEN~WD 23. CASING, LINER AND CEMENTING RECORD SE~ING DEPTH MD CASING SIZE ~. PER ~. G~DE TOP BOSOM HOLE SIZE CEME~ING RECORD AMOUNT PULLED 20" 94¢ H-40 Surfa~ 80' 30" 280 cubic feet Arcticset 10-3/4" 45.5¢ NT-80 40' 4764' 13-1/2" 435 cubic feet Cla~ G 7-5/8" 29.7¢ L-80 38' 15024' 9-7/8" 806 cubic feet Cla~ G 24. Pedorations open to Production (MD + TVD of Top and BoSom and 25. TUBING RECORD inte~al, size and numbe0 SIZE DEPTH SET (MD) PACKER SET (MD) 4-1/2" 12.6¢ L-80 14372' 14303' * Plugged & Abandoned all open perforation inte~als. 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED (See P&A Summaw) 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas li~, etc.) N/A Plugged & Abandoned Date of Test Hours Tested Production for OIL-BBL ~S-MCF WATER-BBL CHOKE SIZE IGAS-OIL RATIO I N/A Test Pedod -> Flow Tubing Casing Pressure Calculated OIL-BBL ~S-MCF WATER-BBL OIL GRAVITY - APl (coif) Pre~. 24-Hour Rate > 28. CORE DATA Brief description of litholo~, porosi~, fractures, ~parent dips and pressence of oil, gas or water. Submit core chips. * This 10-407 is submitted as directed per the 10-403 form approved Januaw 5, 2001 (Approval ¢301-002) ECE VED Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE Alaska Oil & Gas Cons. Commission ¢ !,_, .. ~ Anchorage . , . 29. '~ 30. GEOLOGIC MAR~,,~_,-~S FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and MEAS. DEPTH TRUE VERT. DEPTH gravity, GOR, and time of each phase. H RZ 14109' 8987' Top of Kuparuk 14468' 9191' N/A 31. LIST OF A-I-rACHMENTS Summary of NK-12A Pre Rig Sidetrack Plug & Abandonment Operations. 32. I hereby certify that the following is true and correct to the best of my knowledge. Signed ~/~.~// /~~'" Title BP Drillin.q En.qineer Date ~/~,'/'~,~/'"~¢~/' Scott Kolstad INSTRUCTIONS Prepared by Paul Rau! 564-5799. General: This form is designed for submitting a complete and correct well completion report and Icg on all types of lands and leases in Alaska. Item 1: Classification of Service wells: Gas injection, water iniection, 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 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 cementing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". RECEIVED Form 10-407 M/ Y 0 9 Alaska 0il & Gas Cons. Commission Anchorage NK-12A DESCRIPTION OF WORK COMPLETED PRE RIG SIDETRACK PLUG & ABANDOMENT SUMMARY Date Event Summary 1/22/2001 - 1/25/2001' 1/31/2001- 2/03/2001' 2/04/2001' 2/05/2001: 2/06/2001' 2/08/2001' 2/09/2001' 2/10/2001- 2/11/2001' RIH & tagged PBTD @ 14884' CORR ELM. Dummied off GLV's. MITIA to 3000 psi - passed. A CTU Cement Plug was pumped to Plug & Abandon the lower wellbore prior to Rig ST operations as follows: MIRU CTU. PT'd BOPE. RIH w/CT nozzle & jetted down through hydrates @ 3285' MD w/60/40 Methanol Water. Killed well w/Slick 2% KCl Water. Pumped 40 bbls of Neat 15.8 ppg Class G Cement to abandon the open perforation intervals located in the 7-5/8" casing @: 14466' - 14551' MD (Kupaurk Zone) 14563' ~ 14583' MD (Kupaurk Zone) Squeeze 8 bbls of cement behind pipe. Attained a max squeeze press of 1500 psi for 25 min. Estimated top of cement - 13780' MD. POOH replacing voidage & maintaining 1500 psi on wellhead (500 psi over wellhead). FP'd well. RD CTU. WOC. RIH w/slickline but unable to get deeper than 7937' SLM in 3 attempts. RIH w/slickline & drifted tubing but unable to get beyond 7079'. RD SLU. MIRU CTU. PT'd equip. RIH w/milling BHA. Milled through cement stringers @ 7960', 8200, & 8334'. Tagged TOC @ 13590' MD. PT'd cement plug to 2525 psi - bled to 2090 psi in 30 min. POOH w/ BHA. FP'd well. RD. Performed FCO to 11500' CTM. RIH w/GR/CCL & logged well f/11350' to 7000'. Cut 4-1/2" tubing w/jet cutter @ 11300'. Circulated 720 bbls of clean seawater down IA to tubing. FP'd both tubing & IA w/120 bbls Diesel. PT'd OA to 2000 psi - lost 25 psi in 30 min. Continued w/NK-12B Rig Sidetracking Operations w/Doyon 14. MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: THRU: Julie Heusser, Commissioner Tom Maunder, P. i. Supervisor DATE: April 16, 2001 FROM: Jeff Jones, SUBJECT: Petroleum Inspector Safety Valve Tests Niakuk Field BPX PBU / Niakuk Pad April 16, .,2.0.0!: i traVeled to the Niakuk Field to witness Safety Valve System tests on BPX's oil producing wells. Well house inspections were also conducted. The testing went well with Ron White as the BPX representative in charge of testing. 12 wells were tested with two failures witnessed. The pilot on NK-12A tripped below 50% of the separator pressure and was replaced and passed a retest. The SSV on NK-62 failed to hold D.P. and was stroked and passed a retest. I inspected 12 well houses and all were in order with no exceptions noted. The AOGCC test forms are attached for reference. SUMMARY...;_ I witnessed SVS tests on 12 oil producing wells in BPX's Niakuk Field. 12 wells tested, 36 components. 2 failures witnessed, 5.5% failure rate. 12 well houses inspected, no exceptions noted. Attachments,: SVS PBU Niakuk 4-16-01 JJ ,C,C: .NON-CON..,FIDENTIA. L SVS PBU Niakuk 4-16-01 JJ Alaska Oil and Gas Conservation Commission Operator: BPX Operator Rep: Ron White AOGCC Rep: Jeff Jones Safety Valve System Test Report Submitted By: Jeff Jones Field/Unit/Pad: PBU/Niakuk Field Separator psi: LPS 460. Date: 4/16/01 HPS Well Permit Separ Set L/P Test Test Test Date oil, WAG, G~J, Number Number PSI PSI Trip Code Code Code Passed GAS or CYCLE ~qK-07 1931590 ~, . NK-08 1940930' ' 466 350 350 P ' P 'e 'OIL NK-09 1941400 460 350 340 P p P ' OIL :NK-12A 1940070 460 350 ' 200 ' 3 P P 4/16/01 OIL , ~ NK-13 1961340 NK-14' i~60960 '460 ~50 350 e P P '0IL NK-18 '1931770 NI~-19 " 1941230 ................... - !NK-20 1931910 460 35b 525 P '~ P OIL: NK-2'I 1940860 '460 350 325 'P" P '"P .... oILI NK.22 .... i93i3~0 ....... NK-57 " 1950210 '460 ' '350 325 'e P P ..... OIL, NK-2'8 1960930 NK-29' ' 1961900 '460 350 250 "P ~ ..... P ......... OIL NK-34 1980850 NK-42 1941080 460 350 340 P P e oIL: NK-61 1981140 460 350 325 P P P OIL tNK'62 1'972560 460 '" 350 325 P 4 .... P 4/~6201 OIL L6-26 1940050 460 350 350 P P P OIL Wells: 12 Components: 36 Failures: 2 Failure Rate: 5.56% [2] 90 oay Remarks: NK-12A pi!,0t,.was replac.ed .a~l. ,passed retest on 4/16/01 NK-62 stroked valve and passed retest on 4/16/01 L6- 26 is on the Niakuk Pad and drilled into the Lisburne formation. 12 well house inspections, no except.ions,. RJF 1/16/01 Page 1 ofl SVS PBU Niakuk 4-16-0I JJ STATE OF ALASKA ..... ALASK/-, ..,IL AND GAS CONSERVATION COMk ~SION APPLICATION FOR SUNDRY APPROVAL 1. Type of Request: [] Abandon [] Suspend [] Plugging [] Time Extension [] Perforate [] Alter Casing [] Repair Well [] Pull Tubing [] Variance [] Other [] Change Approved Program [] Operation Shutdown [] Re-Enter Suspended Well [] Stimulate Plug Back for Sidetrack 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 1327' NSL, 996' WEL, SEC. 36, T12N, R15E, UM At top of productive interval 627' SNL, 571' WI=L, SEC. 26, T12N, R15E, UM At effective depth 271' SNL, 776' WEL, SEC. 26, T12N, R15E, UM At total depth 198' SNL, 819' WI=L, SI=C. 26, T12N, R15E, UM 5. Type of well: [] Development [] Exploratory [] Stratigraphic [] Service 6. Datum Elevation (DF or KB) KBE = 60.00 7. Unit or Property Name Niakuk 8. Well Number NK-12A 9. Permit Number 194-007 10. APl Number 50- 029-22414-01 11. Field and Pool Niakuk Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner 15040 feet 9476 feet 14944 feet 9430 feet Length 80' 4724' 14986' Size 20" 10-3/4" 7-5/8" Plugs (measured) Junk (measured) Cemented 280 cuft Arctic Set (Approx.) 435 cuft Class 'G' 806 cuft Class 'G' MD 80' 4764' 15024' TVD 80' 4146' 9468' Perforation depth: measu~d 14466'- 14551', 14563'- 14583' true vertical 9208'-9190', 9241'-9251' Tubing (size, grade, and measured depth) 4-1/2", L-80 tubing at 14372' RECEIVED J,~N 0 3 2001 Alaska 0il & Gas Cons. Commission Anchorage Packers and SSSV (type and measured depth) 7-5/8" Baker packer at 14303'; TRSSSV Otis 4-1/2" nipple at 1988'. 13. Attachments [] Description Summary of Proposal [] Detailed Operations Program [] BOP Sketch 14. Estimated date for commencing operation January 07, 2001 16. If proposal was verbally approved Name of approver Date Approved 15. Status of well classifications as: []Oil [] Gas []Suspended Service Contact Engineer Name/Number: Scott, t~lstad, 564-5347 Prepared By Name/Number: Sondra Stewman, 564-4750 17.1 hereby certify that the f(~,g~g is ~~rreot to the best of my knowledge S,gned Dave Cocking '///~~~~ Title ~er Date //~/~f , U--Only Conditions of Approval: Noti~ Commission so representative may witne~ Approval No. Plug integriW ~ BOPTest ~ Location clearance Mechanical Integrity Test~ Subsequent form required 10- Approved by order of the Commission Form 10-403 Rev. 06/15/88 Commissioner D at e ~.~///~,,~./~)/ Submit I¢~ TripliCate ~ RECEIVED JAN 0 Al~ka Oil & Gss Cons. Commission AnchorE~je BP Exploration Alaska To: Tom Maunder - AOGCC Date: December 28, 2000 From: Scott Kolstad Subject: Reference: NK-12A Application for Sundry Permit - P&A for Sidetrack Operations APl # 50-029-22-41401 Well NK-12A was drilled in 1994. The well was shut in due to high water cut in mid 1997. The well is planned to be sidetracked to a new bottom hole location as a conventional producer targeting the Kuparuk · rd reservoir. The sidetrack is currently scheduled for Doyon 14 beginning around February 3 , after the completion of Niakuk 43. The pre-rig work for this sidetrack is planned to begin as soon as the attached Application for Sundry is approved. Pre-Riq Work: * Notify the field AOGCC representative with intent to plug and abandon * 1. RIH with CTU, through tubing, to top of fill in 7 5/8" casing. Perform a cement P&A using 15.8 ppg class 'G' cement with adequate cement volume to fill the 7 5/8" casing from top of fill to a minimum of 100' above the top perforation (-14,366'). Squeeze 5 additional bbls into the perforations. 2. Rig up slickline, tag and document top of cement and drift tubing for upcoming tubing cut. 3. Liquid pack the tubing and 7-5/8" x 4-1/2" annulus to surface. Test the integrity of the cement plug and casing by simultaneously pressure testing both the tubing and annulus to 3000 psi for 30 minutes. Increase tubing pressure prior to the 9-5/8" annulus to avoid possibility of tubing collapse. 4. Cut the 4 Y2", 12.6#, tubing at approximately 11,500' MD. Displace the well to clean seawater by circulating down tubing through the tubing cut. Continue to circulate until clean seawater returns to surface. Freeze protect top 2200' MD with diesel. 5. Pressure test the casing pack off for 30 minutes. If 7 5/8" casing was set on emergency slips, test the 7 5/8" pack off to 3,832 psi, which is 80% of the casing collapse pressure. If the 7 5/8" casing was landed on a mandrel hanger, test the pack off to 5,000 psi. Test the tubing hanger seals to 5000 psi for 30 minutes. 6. Bleed tubing and annuli pressures to zero. Set a BPV in the tubing hanger and test from below to 1000 psi. Secure well. 7. Remove the well house and flowlines. If necessary, level the pad. Please provide total well preparation cost on the handover form. , .Fli_~ 1. 2. 3. 4. 5. 6. . Operations: MIRU Doyon 14. Circulate out freeze protection and displace well to seawater. Set TWC & test from below. Nipple down tree. Nipple up and test BOPE. Pull and lay down 4-1/2" tubing from E-line cut and above. MU 7-5/8" window milling assembly and RIH to top of tubing stub. POOH. RU E-line and set CIBP at ~11,010' MD. To avoid cutting a casing collar, set the BP 2'- 3' above a collar. RIH with 7-5/8" Baker bottom-trip anchor whipstock assembly. Orient whipstock as necessary and set. Mill window in 7-5/8" casing. Perform FIT test· POOH 8. RIH with 6 3/4" drilling assembly to whipstock. Kick-off and drill to Tldt~Z @ ~73 degrees inclination. Continue to drill through Kuparak Sand to Top Kingak dropping angle to -35 degrees inclination. 9. Spot liner running pill. POOH w/DP. Run and cement a 4 ¥2", 12.6 # production liner. Displace cement w/viscosified brine perf pill followed by fresh water spacer and mud. Release from liner and circulate out excess cement and displace well to sea water. POOH. After cement has gained compressive strength, test the casing and liner from the landing collar to surface to 3000 psi for 30 minutes 10. Drill pipe convey perforate Kuparak sands @ 6JSPF. 11. Install 4-1/2", 12.6# L80 new or used tubing completion. 12. Drop ball/rod & set packer and test the tubing to 3500 psi and annulus to 3000 psi for 30 minutes. 13. Nipple down the BOPE. Nipple up and test the tree to 5000 psi. 14. Freeze protect the well to -2200' and secure the well. 15. Rig down and move off. Post-Riq Work: 1. MIRU slickline. Pull the ball and rod / RHC plug from below the new production packer. Install gas lift valves. Estimated Pre-rig Start Date: Estimated Spud Date: Scott Kolstad Operations Drilling Engineer 564-5347 01/7/01 02/3/01 RECEIVED J/ N 0 3 Alaska Oil & Gas Cons. Commission Anchorage TREE: 4-1/16"-5M CIW WELLHEAD: 13-5/8"-5M FMC N ~' I ~I ~ GL-SL = ,9' U N IVE RSAL - OTIS 4 1/2" TRSSSVI CP-2 (ID=3.813") 1988 ~ G A S L I FT M A N D R E L S I 4764' ~ ~1 (OTIS TM ~DX 4-1/2" x 1" w/BK La':ches~ 10-3/4", 45.5#/ft, ~ : .......... N-° MD(EKD)! TVDss ANG NT-80S BTCI 1 3210 3009 40 2 7165 5489 59 i 3 10600 7174 58 I ! KOP: 500' ~ 4 13121 8422 60 --L 5 14178 9015 54 MAX ANGLE: 63 o @ 8995' MD No TYPE TROP/size 4-1/2" 12.6# NT80 NSCT TU BI NG ~::~"""' 1 Dummy T U B 1N G I D: 3.958" : 2 D u m m y CAPACITY: 0.01522 ::::,:~ 3 D u m my BBL/FT [ 4 Dummy ~: :: ::--'"--' 5 D u m m y 7 5/8", 29.7#/ft, ~'~ 'X' nipple (OTIS) 3.813" 14246 NT95HS NSCC U ID ~ ~ 7-5/8" Packer, Baker SABL 14303 I:;:1 3.951" ID ::::::;::;::::;::: 4-1/2" 'X' Nipple OTIS 14333 NOTE: CARBON TUBING : ( 3.813" I D) AN D CASING :: I ! 4-1/2" 'XN' Nipple (3.725" ID) 14351 , ~ 4-1/2" WLEG 14372 PERFORATION SUMMARY: Ref Log: Size Interval SPF Open/Sqzd RECEIVED J/ N 0 3 2001 j i~ A~ska 6~1 & Gas 0ohs. Commission ~ - Anchorage 7 5/8", 29.7#/ft, 15024 NT95HS NSCC DATE REV. BY COMMENTS Niakuk 1/4/94 BBB PRE-DRILL WELL' NK- 12A 2/02/94 SJA COMPLETION APl NO' 50-029-22-41401 Sec. 36~T12N~R15E AD&W Size Interval SPF Open/Sqzd TREE: 4-1/16'-5M CIW WELLHEAD: 13-5/8'-5M FMC UNIVERSAL - -NK-12B ORIGINAL RT- ~'-- 41' GL-L 19' 4 1/2" TRSSSV 10-3/4', 45.5ff/ft, I 4764' I NT-80S BTC I Diesel KOP: 500' MAX ANGLE: 63 ° @ 8995' MD 4-1/2' 12.6# L-80 BTC-Mod tbg (GLM's in 7-5/8" csg are 4-1/2" x 1") 4-1/2" X nipples in tail pipe Whipstock @ +_11,000' MD ,,~ 14246 J X' nipple (OTIS) 3.813" ID '~, JJ j 7-5/8" Packer, Baker SABL 14303 3.951" ID i 143~ 4-1/2" 'X' Nipple OTIS (3.813" ID) J 4-1/2' 'XN' Nipple (3.725' ID) 14372 J 4-1/2' WLEG PBTD j 14944 J 7 5/'8', :29.7#/ft, 15024 NT95HS NSCC 7-5/8" x 4-1/2" Production Pkr Top of 4-1/2' Production Liner RECE P&A Cmt j ': Fbrfs' ~ _1~ +16,385' MD 4-1/2' 12.6# L-80 BTC-Mod Liner DATE 10-3-00 REV. BY LRC COMMENTS Proposed Sideirack Niakuk WELL: NK- 12B APl NO: 50-029-22-41402 Sec. 36,T12N,R151= BP Alaska Drilling and Wells oN oR BEI OI W . State of Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage AK 99501-3192 The AOGCC releases confidential data to authorized employees of the Division of Oil and Gas (DNR/DOG). Blueline logs and copied reports are inventoried by p,~j.~r to release. These confidenti~hen ~sponsibility ~.t~ unf:t~rsigned//DNR/DOG employee. Print Name \ \ v-,,,-~ \(--.--'1¢ ~{~ Signature~~_ ~ ('"'"'1./~--,4 ~ate 401 SURVEY .... Description ~ Analysis 403 CORE Conventional SWC ,0, PICKS Formation Picks or DSTs Pr n Tests Geological Markers . ,, '8/03/95 confidnr, doc State of Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage AK 99501-3192 The AOGCC releases confidential data to authorized employees of the Division of Oil and Gas (DNR/DOG). Blueline logs and copied reports are inventoried by prior to release. These confidential data are then responsibility of the undersigned DNRJDOG employee. PAGE TWO IF NEEDED PTD # - WELL NAME BLUE LINE II RUN II INTERVAL II SCALE II NOTE rev 08/03195 confidnr, doc // I / Facsimile Cover Sheet To: Company: Phone: Fax: LARRY GRANT Alaska O&G Conservation Comm. 907-279-1433 907-276-7,542 From: Company: Phone: Fax: Email: Timothy J. Ryherd Alaska D.N.R, - Div. of OII & Gas (907)269-8771 (907)562-3852 rjr @ dog, dn r.state, ak. us Date: 1/2/95 Pages inoluding this cover page: 1 Larry; Please prepare the following well data for me to pick up for our files tomorrow afternoon, 1/3/95: BP Niakuk #10 (93-0184)--all well logs, well history, completion report, drilling permit, horizon picks, directional surveys, core descriptions, eom analyses, production test summaries and production test detailed reports. BP Niakuk #12 (93-0167)-all well logs, well history, completion report, drilling permit, horizon picks, directional surveys, core descriptions0 core analyses, production test summaries and production test detailed reports. BP Niakuk #12A (94.0007)-all well logs, well histo~/, completion report, drilling permit, horizon picks, directional surveys, core descriptions, co~e analyses, production test summaries and production test detailed reports. BP Niakuk #19 (94-0123)--all well logs, well history, completion report, drilling permit, horizon picks, directional surveys, core dasoriptlons, ~ore analyses, production test summaries and production test detailed reports. I will be over to pick up this data tomorrow. Gall me If you oan't have it reacly by then, Th~nk you, Sincerely, Tim Ryherd BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 November 9, 1995 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 ~ Dear AOGCC Representative, / Attached are blueline and folded sepias for well Niakuk 12A. Per 20.AAC 25.537(d) BP Exploration would like these logs held confidential for 24 months. The specific attached log includes: Log Type Company PLS (Production profile) Atlas Run Date Depths 11/5/95 14420'-14888' Please contact me at 564-4531 if you have any questions. Sincerely, Katie NitZberg,(,~r. (~eo~)logist Greater Point Mclntyr"e-'Area MS Enclosures Please sign below and return to Marian Sloan, BPX, Mail Stop MB7-2 for reciept of transmittal. _~E ~m_: ..... T DATA AOGCC i~_~d~.vld, uc~. Well Geo!ogscai Materials iilvei'ltory T DATA_PLUS Page' 1 Date' 10/13/95 RUN DATE_RECVD 94-007 . 94-007 ~07 94-007 .~AiLY WELL OP ~ 007 94~007 4 7 - L W D/-D C 94-007 ~CDR-LWD/DC 94-007 ~DR-VER/ 94~007 ~, _ 0o ~ ~ATIC T 13804=i5040, OH-CDR/CDN R COMP DATE' 0~ u/05/94 R 0i/15/94-02/02/94 R !00-14900 L 13804-15040 _, oo04-i5040 L 13804-15040 L ~ ~ ~o804-15040 L 14400-14922 t....L/~ i4150-14933 04/13/94 04121/94 04121/94 04/11/94 03/2i/95 04/13/94 04/13/94 04/13/94 07/25/94 0~/22/94 Are dry ditch samples required? Was the well cored? yes ~h-alysis & description re~~? Are well tests '~' ~i ~Y - ~t=. ed es ~ Received? ~' Well is ~in compiianc_ initial COMMENTS yes ~And received? yes no WELL NAME DATE ~_?-/..,4..,~ N K-07 6/19-22/94 NK-07 6/19-22/94 NK-IO 12/11-14/93 /¢/~/'NK-10 12/14/93 NK-12 11/10-11/93 /~,~NK-12 11/11/93 NK-12A 1/27-29/94 /'7 NK-12A 1/29/94 NK-'18 11/26-27/94 ~'3-/'?/~ NK-18 11/27/93 ¢.,q__//~//. NK-20 1/4-9/94 NK-20 1/9/94 ~'/'/-OP~ NK-21 719/94 ~.~_/., NK-22 10/16-25/93 ' U'~-22 9/16/93 ,/_7/_3..~..NN K-23 4/23-30/94 K-23 4/3O/94 REPROCESSED DATE INTERVALS ~ 14840'~ 15707' 10/19/94 ~ 13992'-15707' ~---...~12230'-13590' 10/13/94 '""--.~ 12248'- 13550 12/15/93-----.3 10960'-11416' 1/19/95 '"-,.J- 10964'- 11416' ~ 13680'-15040' 10/16/94 -,..313804'- 15040' ~'"'---,i 10400'-11205' 10/16/94 ~ 10396'-11206' ---.-..j13150'-14160' 10/14/94 ""-.J 13151'-14165' 10/19/94"'"--' 10392'-12000' ~ 11310'-13522' 10/14/94 "',,,~ 11330'- 13540' ~,...j16000'-17550' 10/14/94'"--,j 16073'-17526' LOG NAME RUN NO CDN - LWD/Depth Corrected LDWG Tape (CDR CDN 1 Bit Run) CDN - LWD/Depth Corrected LDWG Tape (CDR/CDN; Reprocessed Density) CDN - LWD/Depth Corrected (Reprocessed Density) LDWG Tape (CDR/CDN; Reprocessed Density) CDN - LWD/Depth Corrected LDWG Tape (CDR/CDN; Reprocessed Density) CDN - LWD/Depth Corrected LDWG Tape (LWD Open Hole Edit; Reprocessed Density) CDN - LWD/Depth Corrected LDWG Tape (CDR/CDN; Reprocessed Density) Composite Composite LDWG Tape (CDR/CDN; Reprocessed Density) ...... CDN - LWD/Depth Corrected LDWG Tape (CDR/CDN; Reprocessed CDN) Composite Composite CDN - LWD/Depth Corrected LDWG Tape (CDR/CDN; Reprocessed CDN) Composite Composite COMPANY NAME Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger Schlumberger RECEIVED MAR 2 1 995 Alaska Oil & Gas Cons. Commission Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 March 21, 1995 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 995~1 Dear AOGCC Representative, Attached are revised blueline, sepia and LDGS formatted tapes for nine early Niakuk wells. Logs and tapes were sent to you for each of these wells in the past year. Rbcently Anadrill has improved the density algorithm and re- created all of'our LWD CDN data using the new algorithm. This processing decreases the density a couple of porosity units, making the readings more accurate. Please replace the first set of tapes and the first set of CDN logs we sent you so that these improved logs are used for your analyses. The NK-21 blueline and sepia you received in December were the re-processed version and, therefore, do not need to be replaced. Per 20.AAC 25.537(d) BP Exploration requests that these logs held confidential for 24 months. Please contact me at 564-4531 if you have any questions. Sincerely, Katie Nitzberg, Sr. Geologist Greater Pt. Mclntyre Area MAP,, 2 '1 1995 Alaska Oil & Gas Cons. Commission Anchorage Enclosures BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 ~ , , (907) 561-5111 ·,. July 19, 1994 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear AOGCC Representative, Attached are blueline, a folded sepia and a LIS tape of e-line logs for various Niakuk wells, indexed below. Per 20.AAC 25.537(d) BP Exploration would like these these logs held confidential for 24 months. The specific attached logs include' Well Name Loa Tvoe -- - . NK-10 NK-12A NK-18 NK-23 ./ ,,PLS (Static Pressure- . Temperature Survey) ,/PLS (Static Pressure- Temperature Survey LS (Fiowmeter- ~Sm(PL~)r~;e~a p e Comps[ny R~n Date Depths Atlas Wireline 07/08/94 13000'-13597' Atlas Wireline Atlas Wireline Atlas Wireline O7/O8/94 07/10/94 06/15/94 14400'-14922' 10530'-10970' 14250'-16758' Please contact me at 564-4531 if you have any questions. Sincerely, Katie Nitzberg,~Sr. G~,'ologist Lisburne and New Developments KEN Enclosures .. . WELL NAME DATE INTERVALS LOG NAME RUN NO COMPANY NAME 4/16/94 4/16/94 4/12/94 3/6/94 3/6/94 3/13/94 4/13/94 3/13/94 3/2/94 4/9/94 5/25/94 2/28/94 2/26/94 5/13/94 5/15/94 5/23/94 13100'- 13293' 9760'- 10780' 12970'-13240' 12732'- 13598 12732'-13598 14150'-14933 10525'-10870 10300'-11113' 10550'-10915 13390'-14025' 13700'-13980 13700'-14076 12900'-13382' 16540'-17380' 16400'-16900' 16450'-16759' '"" Production Fluid Sample '" Production Profile .--' Production Profile ~'PFC/CCL '"Gamma Ray/CCL · '"' Static HP-Temperature Survey "'Production Profile ,--Static H P-Tem pe ratu re S u rvey .,,PFC/CCL .--"Stat ic/Te m peratu re --'Production Profile ¢--PFC/CCL · ,-"PFC/G R/CCL '~' Segmented Bond Log .,,-'Gamma Ray/Collar Log ~-' PFC Gamma Ray/Collar Log 1 ATLAS WIRELINE I ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE I ATLAS WIRELINE I ATLAS WIRELINE 1 ATLAS WIRELINE I ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE I ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE 1 ATLAS WIRELINE PERMIT DATA AOGCC Individual Well Geological Materials Inventory T DATA_PLUS Page: 1 Date: 05/03/94 RUN DATE_RECVD 94-007 CDN-LWD/DC 94-007 CDR-LWD/DC 94-007 CDR-VER/LWD/DC 94-007 407 94-007 DAILY WELL OP 94-007 SURVEY 94-007 6066 L 13804-15040 L 13804-15040 L 13804-15040 R COMP DATE: 03/05/94 R 01/15/94-02/02/94 R 100-14900 T 13804-15040, OH-CDR/CDN 1 04/13/94 04/13/94 04/13/94 04/21/94 04/21/94 04/11/94 04/13/94 Are dry ditch samples required? yes no And received? Was the well cored? yes no Analysis & description received? Are well tests required? yes no Received? yes no Well is in compliance Initial yes Ro yes I10 Comments STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMP LETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL [] GAS [] SLJSPEI~I3ED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number BP Exp/oration 94-07 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 5o- 029-22414-01 4. Location of well at surfaceU~J~i~"~' G / NA[~~''~-~'" "'' '~~~ 9. Unit or Lease Name 1327' NSL, 996' WEL, SEC. 36, T12N, R15E : ~- .... ~,.. Niakuk 10. Well Number At Top Producing Interval ...... NK-12A 623'SNL, 574' WEL, SEC. 26, T12N, R15E '~. !~~..-..,, 11. Field and Pool At Total Depth Niakuk Pool 194' SNL, 822' WEL, SEC. 26, T12N, R15E 5. Elevation in feet (indicate KB, DF, etc.) ~6. Lease Designation and Serial No. KBE = 60' I ADL 34630 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offshore 116. No. of Completions 1/15/94 1/29/94 3/5/94I N/A feet MSLI One 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey p0. Depth where SSSV set ~1. Thickness of Permafrost 15040' MD/9476' TVD 14944' MD/9430' TVD YES [] NO []! 1988' feet MD/ 1800' (Approx.) !22. Type Electric or Other Logs Run L WD, GR/NEU/GR/DEN/MWD 23. CASING, LINER AND CEMENTING RECORD SE'ri'lNG DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BO'I-rOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" 94~ H-40 Surface 80' 30" 280 cufl Arcticset (Approx) 10-3/4" 45.5# NT-80 40' 4764' 13-1/2" 435 cu ft Class "G" 7-5/8" 29. 7# L-80 38' 15024' 9-7/8" 806 cu ft Class "G" 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MDI PACKER SET (MDI Gun Diameter3-3~8" 6 spf 4-1/2", L-80 14372' 14303' MD TVD 14466'-14551' 9208'-9190' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 14563'- 14583' 9241'-9251' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production IMethed of Operation (Flowing, gas lift, etc.) 4/12/94 I FIowing Date of Test Hours Tested !PRODUCTION FOR OIL-BBL C~S-MCF WATER-BBL CHOKESIZE IGAS-OIL RATIO I ~=ST PERIOD Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL DIL GRAVITY-APl (corr) Press. 24-HOUR RATE 28. CORE DATA Brief description o! lithology, porosity, fractures, apparent dips, and presence ot oil, gas or water. Submit core chips. RECEIVED Form 10-407 Al~ohor~mit in duplicate Rev. 7-1-80 CONTI~EDON REVERSE SIDE 29. 30. GEOL~ 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. Subsea HRZ 14109' 8927' Kuparuk 14468' 9131' Kingak Not penetrated 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~, Title Drillina Enaineer Suoervisor Date 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". RECEIVEE Form 10-407 ;,.,~, ~.:,:, ~;;i d~ Gas C;ons. C:~mmJssion BP/AAI SHARED SERVI'CE DAILY OPERATIONS PAGE: 1 WELL: NK-12~ BOROUGH: NORTH SLOPE UNIT: POINT MCINTYRE FIELD: POINT MCINTYRE LEASE: API: 50- PERMIT: APPROVAL: ACCEPT: 01/14/94 06:00 SPUD: RELEASE: OPERATION: DRLG RIG: POOL 7 WO/C RIG: POOL 7 01/15/94 ( 1) TD: 4672' (4672) 01/16/94 (2) TD: 4980' ( 308) 01/17/94 ( 3) TD: 7290'(2310) 01/18/94 ( 4) TD: 7980' ( 690) TEST BOPS. MW: 0.0 VIS: 0 MOVE OF OF NK-20 AND SPOT OVER NK-12A, R/U FLOOR AND CELLAR. RIG ACCEPTED ON NK-12A AT 18:00 HOURS ON 1/14/94. N/D DRY HOLE TREE, N/U BOP'S. MIX THE MUD. R/U AND PULL TUBING HANGER AND PUP. R/U TO TEST AND TEST THE BOP'S. WAIVED BY STATE REP: BOBBY FOSTER. DRLNG - KICKOFF CMT PLUG MW: 9.2 VIS: 70 TEST THE BOP'S REPLACE HCR W/MANUAL VALVE AND TETEST - OK. INSTALL BOWL PROTECTOR. MAKE UP BHA AND ORIENT MOTOR W/MWD. TRIP IN HOLE W/BHA/HWDP TI 2300'. CHECK MOTOR AND MWD. DISPLACE OUT FREEZE PROTECTION DIESEL. CONTINUE TO TRIP IN HOLE INSTALLING DP RUBBERS EVERY OTHER JT. FROM 2700 TO SURFACE. TAG CEMENT AT 4655 BREAK CIRC AND TEST CASING TO 3000 PSI. DRILL FIRM CEMENT F/4655' T/4774' CIRC. CHANGE OVER TO DRILLING MUD. PREFORM LEAKOFF TEST. EMW WAS 14.5PPG. DRILLING W/BIT # 1 AND MOTOR F/4774 T/4980'. KICK OFF @ 4850' DRILLING MW: 9.5 VIS: 50 DRILLING W/BIT # 1 AND MOTOR F/4980' T/5943' CIRC. B/U. SHORT TRIP TO 10-3/4" CASING SHOE AND LAY DOWN 24 JOINTS OF OLD DP. SERVICE THE RIG. TRIP TO BTTOM AND BREAK CIRC. DRILLING F/5943 TO 7290' DRILLING MW: 9.5 VIS: 50 DRILLING W/BIT #1 F/7290 T/7343. CIRCULATE BOTTOMS UP. TRIP OUT OF HOLE, WORK THROUGH TIGHT SPOT AT 6300, LAY DOWN 69 JTS. CHANGE OUT MWD AND BIT. ORIENT MOTOR WITH MWD. SERVICE BOWL PROTECTOR. TRIP IN HOLE W/BHA AND TEST MWD/MOTOR. TRIP IN HOLE TO SHOE. CUT DRILLING LINE AND FILL PIPE. SERVICE THE RIG. TRIP IN HOLE, CHECK TORQUE ON DP RUBBERS, WASH AND REAM F/5383 T5952, F/6141 T/6331, F/6994 T/7343. DRILLING W/BIT #2 F/7343 T/7980'. ,, .~ ,,:,~, ~.ii! ~.. Oas (;s~s. [j,olnmissior~ Ar~chorage WELL : NK-12A OPERATION: RIG : POOL 7 PAGE: 2 01/19/94 ( 5) TD: 8630'( 650) 01/20/94 ( 6) TD: 9640' (1010) 01/21/94 ( 7) TD:10105' ( 465) 01/22/94 ( 8) TD:11245' (1140) 01/23/94 ( 9) TD:llT12' ( 467) 01/24/94 (10) TD:12534' ( 822) 01/25/94 (11) TD:13263' ( 729) DRILLING MW: 9.6 VIS: 54 DRILLING W/ BIT #2 AND MOTOR FRMO 7980 TO 8213'. MWD FAILED. CIRC BU FOR TRIP DROP SURVEY. TOOH FOR NEW MWD TOOL. CHANGE OUT MWD, BIT, LOWER STAB BLADE, JARS, ORIENT MOTOR W/MWD SERVICE BOWL PROTECTOR. TRIP IN HOLE TO SHOE, CHECKING TORQUE ON DP RUBBERS, FILL PIPE. SERVICE RIG. CONTINUE TO TRIP IN HOLE TAKING MWD BENCHMARK SURVEY'S F/7334 T/8134'. DRILLING W/ BIT #3 AND MOTOR F/8213' T/8530' DRILLING MW: 9.5 VIS: 47 DRILLED AND SURVEYED F/8630 T/9353. CBU FOR SHORT TRIP. SHORT TRIP 12 STANDS TO 8213' HOLE IN GOOD SHAPE. DRILLED AND SURVEYED F/9353 T/9640' RIH W/ BIT #4 MW: 9.5 VIS: 63 DRILLED AND SURVEYED F/9640 T/10105. CBU. DROP SINGLE SHOT. PUMP DRY JOB. POOH -- TIGHT AT 8040 AND 7849. RETRIEVE SURVEY. CHANGE BIT. ORIENT MWD AND MOTOR. SERVICE WEAR RING. TIH PICKING UP NEW S-135 DP. MU/BO/MU 27 JTS OF NEW DP. DRILLING MW: 9.5 VIS: 50 SLIP AND CUT 80' OF DRILLING LINE. SERVICE RIG AND TOP DRIVE. RIH. REAM BOTTOM 80' PRECAUTIONARY. DRILLED AND SURVEYED 10105 TO 11245. RIH W/ BIT #5 MW: 9.6 VIS: 61 DRILLED AND SURVEYED F/11245 T/11712. CIRC LO/HI VIS. SWEEP. CBU. DROP SINGLE SHOT. POOH. L/D 42 JTS. OF OLD DP. RETRIEVE SURVEY. CHANGE OUT MWD. PULL WEAR RING. PERFORM WEEKLY TEST ON BOPE. ORIENT BHA. TIH. CHECK MWD. P/U 90 JTS OF S135 W/NEW HARD BANDING. CHANGE OUT SWIVEL PKNG. MW: 9.6 VIS: 55 RIH W/ BIT #5. SLIP AND CUT 164' OF DRILLING LINE. SERVICE THE TOP DRIVE. RIH W/ BIT # 5 AND REAM OUT BOTTOM 90' (PRECAUTIONARY). DRILL AND SURVEY F/11712 T/12534. SWIVEL PACKING FAILED - POOH TO 4700 TO CHANGE THE SWIVEL PKNG. L/D BHA #5 MW: 9.7 VIS: 55 SERVICE THE TOP DRIVE. RIH AND CHECK TORQUE ON DRILL PIPE RUBBERS. DRILL AND SURVEY F/12534 T/13263. CBU FOR DRY JOB. POOH AND SERVICE THE WEAR RING. L/D MOTOR AND MWD. P/U FRESH MWD ON ROTARY ASSEMBLY. WELL : NK-12A OPERATION: RIG : POOL 7 PAGE: 3 01/26/94 (12) TD:13375' ( 112) 01/27/94 (13) TD:13802' ( 427) 01/28/94 (14) TD:14295' ( 493) 01/29/94 (15) TD:14975'( 680) 01/30/94 (16) TD:15040' ( 65) DRILLING MW: 9.7 VIS: 47 M/U BHA. RIH, P/U 69 JTS OF "E" DP. SLIP AND CUT DRILLING LINE. SERVICE THE TOP DRIVE. RIH, CHECK TORQUE ON DP RUBBERS. CBU --INJECT MUD INTO WELL # 10. WELL #10 PRESSURE UP TO 1300PSI, RATE DOWN TO 1BPM.-- FREEZE PROTECTED #10 WELL. CONTINUE TO CIRCULATE UNTIL VAC TRUCK ARRIVED FOR RETURNS. DISPLACE TO KCL MUD TO 24:00. CBU WITH KCL, UP WT = 325K, DN = 180K. 950 AMPS. AFTER DISPLACEMENT- UP WT = 325K, DN = 198, 775-800 AMPS. DRILLED AND SURVEYED F/13263 T/13375. P/U BHA #7 MW: 9.8 VIS: 52 DRILLED AND SURVEYED F/13375 T/13802. ANGLE DROPPING 1'/100'. ART 11.5. CIRC MIX AND PUMP DRY JOB. CIRC DRY JOB. POOH FOR BHA. TIGHT F/9850 T/9750. (6750 TVD). REAM BACK THROUGH SAME. SERVICE WEAR RING. L/D BHA P/U BHA AND ORIENT DRILLING MW:10.0 VIS: 60 ORIENT THE BHA. PROGRAM MWD. INSTALL SOURCE CHANGE OUT JARS. RIH, TEST MWD AND MOTOR. SERVICE TOP DRIVE - FILL PIPE. RIH. REACH BRIDGE AT 13080-13090. DRILLED AND SURVEYED F/13802 T/14295. ART = 8.5, AST = 6. DRILLING MW:10.1 VIS: 53 DRILLED AND SURVEYED F/14295 T/14510. ART=2 AST=2.25. CBU. SHORT TRIP 10 STANDS. HOLE IN GOOD SHAPE. DRILL AND SURVEY F/14510 T/14975. ART = 15. R/U TO RUN 7-5/8" CASING MW:10.0 VIS: 46 DRILLED AND SURVEYED F/14975 T/15040. ART=4.25 HRS. CIRCULATED BOTTOMS UP W/ HI-LO SWEEP. SHORT TRIP, 10 STANDS - PULLED 50K OVER AT 14750. RIH W/ NO PROBLEMS. CIRC AND THIN MUD FOR CASING. DROP SURVEY. POOH TO 4700'. REMOVE THE DP RUBBERS. CUT DRILLING LINE. POOH TO BHA. L/D HWDP. L/D BHA. RETRIEVE SURVEY. PULL SOURCE, DOWN LOAD MWD. PULL WEAR BUSHING. SET TEST PLUG. CHANGE BOTTOM RAMS TO 7-5/8" AND TEST DOOR SEALS TO 2500PSI. RIG UP CASING TOOLS. WELL · NK-12A OPERATION: RIG : POOL 7 PAGE: 4 01/31/94 (17) TD:15040' ( 0) PREPARE TO RUN COMPLETION MW: 8.5 VIS: 0 R/U CASING TOOLS. RUN 364 JOINTS OF 7-5/8" 29.7 #L-80 CASG. P/U HANGER AND LANDING JT. LAND CASING. LAST 44 JTS. IN HOLE WERE TIGHT. CIRC AT 11 BPM, 1300PSI. INJECT PIT VOLUME DOWN FOR WORKING ROOM IN PITS. BEGIN BATCH MIXING CEMENT AT 23:00. CEMENT 7-5/8" CASING F/S AT 15024.42' F/C AT 14944'. DISPLACE W/8.5 PPG SEAWATER. BUMP PLUG W/4000 PSI CIP AT 02:30 ON 1/31/94. FLOATS HELD. R/D CASING TOOLS. L/D LANDING JT. SET PACKOFF. TEST TO 5000 PSI. CHANGE BOTTOM RAMS TO 4.5" TEST DOOR SEALS TO 2500. 02/01/94 (18) TD:15040 PB: 0 PULL 2 WAY CHECK MW: 8.5 Seawater R/U TUBING RUNNING TOOLS. HOLD SAFETY MEETING. RUN AND LAND COMPLETION. TEST SSSV W/500PSI DOWN ANNULUS. CLOSE SSSV. BLEED PRESSURE OFF TOP OF SSSV. OK. L/D LANDING JOINT R/D CAMCO. SET 2-WAY CHECK. N/D BOPE, N/U TREE AND TEST 5000 PSI. R/U DRILLSITE MAINTENANCE TO PULL 2-WAY CHECK. 02/02/94 (19) TD:15040 PB: 0 RIG RELEASED MW: 6.7 Diesel PULL 2-WAY CHECK. R/U AND DISPLACE WELL W/ 280 BBLS OF DIESEL. EXTRA 60 BBLS FOR ANNULUS FREEZE PROTECTION. DROP BALL WAIT 30 MIN FOR IT TO SEAT. SET PACKER W/2500PSI. TEST TBG TO 4000, ANNULUS TO 4000 THEN BLEED TO 0PSI. OK ON BOTH AT 30 MIN. AOGCC REP DOUG AMOS WAIVED WITNESS TO TEST. R/D CAMCO. SET BPV. RIG RELEASE ON 2/1/94 AT 16:30 HOURS SIGNATURE: (drilling sup~;'rintendent ) ' DATE: BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 April 8, 1994 Larry Grant Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Larry, Attached is the final set of blueline logs, a folded sepia and an LIS tape for well Niakuk-12A. Per 20.AAC 25.537(d), BP Exploration requests these logs be held confidential for 24 months. The specific logs include' Log Type Company Run Date Depths CDN Schlumberger 1/27-29/94 13804-15040 CDR Schlumberger 1/27-29/94 13804-15040 CDR Very- Schlumberger 1/27-29/94 13804-1 5040 Enhanced LIS tape Schlumberger 3/3/94 13804-15040 (CDR/CDN) Please contact me at 564-4531 if you have any questions. Sincerely, Katie Nitzberg, Sr. Ge'ologi¢_~ Lisburne and New Developments ECEIVED Ataska Oil & Gas Cons, Cornmj~sjo~ Anchorage STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMP LETION REPORT AND LOG 1. Stalus of Well Classification of Service Well OIL [] GAS [] SUSPEtNDED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number BP Exploration 94-07 /~ ^ P. O. Box 196612, Anchorage, Alaska 99519-6612 so- 029-22414-01 4. Location of well at surface 9. Unit or Lease Name 1327' NSL, 996' WEL, SEC. 36, T12N, R15E :' .............. ~ Niakuk 623' SNI~ 574' WEL, SEC. 26, T12N, R15E ~' ii NK- 12A AI Total Depth 194' SNC 822' WEL, SEC. 26, T12N, R15E .......... :;:' 5. Elevation in l~t (indite KB, DF, etc.) ~. Le~ D~ignalion and ~r~ No. KBE = 60' ~ ADL 34630 12. Date Spudded 13. D~e T.D. R~ 14. Date Comp., Su~. or ~and, J15. Waler D~th, if olfshore ~16. No. of Completions 1/15/~4 1/2~/~4 3/5/94~ N/A f~t MSL ~ One 17. Total Depth (MD+TVD) 18. PI~ ~ck D~th (MD+~D 19. Directional Survey J20. Depth where S~V set ~1. Thinness of Permafrost 15040' MD/9476' ~D 14944' MD/9~O' ~D ~ ~ ~ ~~ 1~8' feet MD ~ 1800' (A~rox.) 22. Type Ele~ric or Other Logs Run L WD, GR/NEU/GR/DEN/MWD 23. CASI~, LINER ~D CEME~I~ R~D S~ DE~ MD CASI~ SIZE ~. PER ~. G~E TOP ~ ~E SI~ C~~ ~O~ A~ ~LED 20" 9~ H-40 Sudace 80' 30" 280 cu ~ Arct/cset (Approx) 10-3/4" 45.5~ NT-80 40' 4764' 13-1/2" 435 cu ~ Class "G" 7-5/8" 29. 7~ L-80 38' 15024' 9-7/8" 806 cu ~ Class "G" 24. Pedorations o~n to Pr~uction (MD+TVD of Top and Bottom ~d 25. ~BI~ R~ORD inte~, size and number) SIZE DEP~ S~ (MD) PACKER SET Gun D/ameter 3-3/8" 6 spf 4-1/2~ L-80 14372' 14303' MD 1~466L 14551' ~208591~0' 26. ACID, F~C~RE, CEME~ ~UE~ ~C. 1~~ 1~8~' ~241 ~9251' DEP~ INTERVAL (MD) A~UNT & KIND OF MATERIAL USED 27. PRO~~ TEST Date First Production lMeth~ of Operation (Flowing, g~ lift, etc.) Not yet on produ~ion I N/A Date of Test Hours Tested ~T~ ~R OIL-BBL ~MCF ~ATER-BBL ;C~E~ IGAS-OIL RATIO ~T ~R~D Flow Tubing Casing Pre.ute C~CU~TED DIL-BBL GAS-MCF ~ATER-BBL OIL GRAVIS-APl (corr) Press. 2~HOUR RATE 28. ~RE DATA Brief description of lithology, porosity, fra~ures, a~ent dips, and presence ol oil, g~ or water. Submit core chips, EEEIVE¢ APR 1 1 1994 A~$sk~ 0it & Gas Cons. Commission Anchorage Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE ,'9. 30. GEOLOGIC MARKERS r~RMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Subsea HRZ 14109' 8927' Kuparuk 14468' 9131' Kingak Not penetrated RECEIVED APF 1'1 1994 Ai;~.si~.a Oil & Gas Cons. Corr~mission Anchorage 31. LIST OF A'I-rACHMENTS 32. I hereby certifyithat the foregoing is true and correct to the best of my knowledge Signed .--;// ~ ~-~"~--/~//-- Title Drilline Engineer ~oervi¢or Date · 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". Form 10-407 BP/AAI SHARED SERVICE DAILY OPERATIONS PAGE: 1 WELL: NK-12A BOROUGH: NORTH SLOPE U~i?: POINT MCINTYRE FIELD: POINT MCINTYRE LELSE: API: 50- PE~IIT: APPROVAL: ACCEPT: 01/14/94 06:00 SPUD: RELEASE: OPERATION: DRLG RIG: POOL 7 WO/C RIG: POOL 7 01/15/94 ( 1) TD: 4672' ( 0) 0]./]6/94 ( 2) T'-- 4980' ( 308) 0!/!7/94 ( 3) Ti: ¥290' (2310) 0~/18/94 ( 4) TZ: 7980' ( 690) TEST BOPS. MW: 0.0 VIS: 0 MOVE OF OF NK-20 AND SPOT OVER NK-12A, R/U FLOOR AND CELLAR. RIG ACCEPTED ON NK-12A AT 18:00 HOURS ON 1/14/94. N/D DRY HOLE TREE, N/U BOP'S. MIX THE MUD. R/U AND PULL TUBING HANGER AND PUP. R/U TO TEST AND TEST THE BOP'S. WAIVED BY STATE REP: BOBBY FOSTER. DRLNG - KICKOFF CMT PLUG MW: 9.2 VIS: 70 TEST THE BOP'S REPLACE HCR W/~ANUAL VALVE AND TETEST - OK. INSTALL BOWL PROTECTOR. i'~KE UP BHA AND ORIENT MOTOR W/MWD. TRIP !~,~ HOLE W/BHA/HWDP TI 2300' CHECK MOTOR AND MWD. DISPLACE OUT FREEZE PROTECTION DIESEL. CONTINUE TO TRIP IN HOLE !NSTALLIHG DP RUBBERS EVERY OTHER JT. FROM 2700 TO SURFACE. TAG CEMENT AT 4655 BREAK CIRC AND TEST CASING TO 3000 PSI. DRILL FI~4 CEMENT F/4655' T/4774' CIRC. CHANGE OVER TO DRILLING MUD. PREFORM LEAKOFF TEST. EMW WAS !4.5PPG. DRILLING W/BIT # 1 AND MOTOR F/4774 T/4980' KICK OFF @ 4850' DRILLING MW: 9.5 VIS: 50 DRILLING W/BiT ii ! AND MOTOR F/4980' T/5943' CIRC. B/U. SHORT TRIP TO !0-3/4" CASING SHOE AND LAY DOWN 24 JOINTS OF OLD DP. $~VICE THE RIG. TRIP TO BTTOM AND BREAK CIRC. DRILLING F/594~ TO 7290' DRILLING MW: 9.5 VIS: 50 DRILLING W/Bi'? ill F/7290 T/7343. CIRCULATE BOTTOMS UP. TRiP OUT OF HOLE, WORK THROUGH TIGHT SPOT AT 6300, LAY DOWN 69 JTS. CHANGE OUT MWD AND BIT. ORIENT MOTOR WITH MT[D. SERVICE BOWL PROTECTOR. TRIP IN HOLE W/BHA AND TEST MWD/MOTOR. TRIP IN HOLE TO SHOE. CUT DRILLING LINE AND FILL PIPE. SERVICE THE RIG. TRIP IN HOLE, CHECK TORQUE ON DP RUBBERS, WASH AND REAM F/5383 T5952, F/6141 T/6331, F/~994 T/7343. DRILLING W/BIT #2 F/7343 T/7980' WELL · NK-12A OFEFA. TION: RIG : POOL 7 PAGE: 2 01/19/94 ( 5) TD: S630'( 650) 0!,/20/94 ( 6) TD: 2640' (1010) 0~/~ /94 ( 7) Ti: i ~!05' ( 465) 01/22/94 ( 8) T?:~ ~ 245' (1140) 01/25/94 ( 9) TD: I!712' ( 467) 01/24/94 (10) TD:12534' ( 822) 0~/2%/94 (11) T--: [ 02~3' ( 729) DRILLING MW: 9.6 VIS: 54 DRILLING W/ BIT #2 AND MOTOR FRMO 7980 TO 8213' MWD FAILED. CIRC BU FOR TRIP DROP SURVEY. TOOH FOR NEW MWD TOOL. CHANGE OUT MWD, BIT, LOWER STAB BLADE, JARS, ORIENT MOTOR W/MWD SERVICE BOWL PROTECTOR. TRIP IN HOLE TO SHOE, CHECKING TORQUE ON DP RUBBERS, FILL PIPE. SERVICE RIG. CONTINUE TO TRIP IN HOLE TAKING MWD BENCHMARK SURVEY'S F/7334 T/8134' DRILLING W/ BIT #3 AND MOTOR F/8213' T/8530' DRILLING MW: 9.5 VIS: 47 DRILLED AND SURVEYED F/8~30 T/9353. CBU FOR SHORT TRIP. SHORT TRIP 12 STANDS TO 8213' HOLE IN GOOD SHAPE. DRILLED AND SURVEYED F/9353 T/9640' RIH W/ BIT #4 MW: 9.5 VIS: 63 DRILLED AND SURVEYED F/9640 T/10105. CBU. DROP SINGLE SHOT. PUMP DRY JOB. POOH -- TIGHT AT 8040 AND 7849. REURIEVE SURVEY. CHANGE BIT. ORIENT MWD AND MOTOR. SE~¥ICE WEAR RinG. TiH PICKING UP NEW S-135 DP. MU/BO/MU 27 JTS OF NEW DP. DRILLING MW: 9.5 VIS: 50 SLiP AND CUT 80' OF DRILLING LINE. SERVICE RIG AND TOP DRIVE. RIH. REAM BOTTOM 80' PRECAUTIONARY. DRILLED AND SURVEYED 10105 TO 11245. RIH W/ BIT #5 MW: 9.6 VIS: 61 DRILLED AND SURVEYED F/1!245 T/11712. CIRC LO/HI VIS. SP[EEP. CBU. DROP SINGLE SHOT. POOH. L/D 42 JTS. OF OLD DP. RETRIEVE SURVEY. CHANGE OUT MWD. PULL WEAR RING. PE?FORM WEEKLY TEST ON BOPE. ORIENT BHA. TIH. CHECK MWD. P/~ 90 JTS O? SI$5 W/NEW HARD BANDING. C~!A~GE OUT S%'~!VEL PKb~G. MW: 9.6 VIS: 55 Ri!! W/ BIT ~5, SLi? AND CUT 164' OF DRILLING LINE. SE?:.VICE THE TOP DRIVE. RiH W/ BIT # 5 AND REAM OUT BO~!TOM 90' (PRECAUTIONARY). DRILL AND SURVEY F/11712 T/12534. SWIVEL PACKING FAILED - POOH TO 4700 TO CHANGE THE SWIVEL PKNG. L/D BHA #5 MW: 9.7 VIS: 55 SERVICE THE TOP DRIVE. RIH AND CHECK TORQUE ON DRILL PIPE RU~ERS. DRILL AND SURVEY F/12534 T/13263. CBU FOR DRY JO!~. POOH AND SERVICE THE WEAR RING. L/D MOTOR AND MWD. P/~' FRESH MWD ON ROTARY ASSEMBLY. WELL · NK-12A OX !- Ff~T I ON: Ri C- : POOL 7 PAGE: 3 01/2~/94 (12) TD:i2375' ( 112) 0] /27/94 (13) Ti.: ~' 5.'~02' ( 427) 01/2°./94 (14) TD: !,'~295' ( 493) 01/29/94 (15) T¥~: [ '~975' ( 680) 0!./27/94 (16) TD' i~..040' ( 65) DRILLING MW: 9.7 VIS: 47 M/U BHA. RIH, P/U 69 JTS OF "E" DP. SLIP AND CUT DRILLING LIlqE. SERVICE THE TOP DRIVE. RIH, CHECK TORQUE ON DP RUBBERS. CBU --INJECT MUD INTO WELL # 10. WELL #10 PF_ESSURE UP TO 1300PSI, P~ATE DOWN TO 1BPM.-- FREEZE PROt-ECTED #!0 WELL. CONTINUE TO CIRCULATE UNTIL VAC TRUCK ARF'~!VED FOR RETURh~S. DISPLACE TO KCL MUD TO 24:00. CBU WI~H KCL, UP ?-~T = 325K, DN = !80K. 950 AMPS. AFTER DISPLACEMENT- U£~ WT = 325K, DN = 198, 775-800 AMPS. DRILLED AND SURVEYED F/132~3 T/!3375. P/U BHA #7 MW: 9.8 VIS: 52 DRILLED AND SURVEYED F/13375 T/13802. ANGLE DROPPING 1'/I00' ART 11.5. CIRC MIX AND PUMP DRY JOB. CIRC DRY JOB. POOH FOR BHA. TIGHT F/9850 T/9750. (6750 TVD) . REAM BACK THROUGH SAME. SERVICE WEAR RING. L/D BHA P/U BHA AND ORIENT DRll:LING MW:10.0 VIS: 60 THE BHA. PROG..~qAM !'~i~.,{D. INSTALL SOURCE CHANGE OUT RIH, :P~ST i.!'.'~D .:',.i'!~, MOTOR. SERVICE TOP DRIVE - FILL RIH. F~EACH B.".:~!DGE AT ]3080-13090. DRILLED AND SU~"EYED F/!3~0J] ?/14295. AP, T = 8.5, AST = 6. DRILLING MW:10.1 VIS: 53 DRILLED AND SURVEYED F/14295 T/14510. ART=2 AST=2.25. C~U. SHORT TRIP 10 STANDS. HOLE IN GOOD SHAPE. DRILL AND SUE. VEY F/14510 T/14975. ART = 15. R/U TO RUN 7-5/8" CASING MW:10.0 VIS: 46 DRILLED AND SURVEYED F/14975 T/15040. ART=4.25 HRS. CI?CULATED BOTTOMS UP W/ HI-LO SWEEP. SHORT TRIP, 10 ST'!!DS - PULLED 50K OVER AT 14750. RIH W/ NO PROBLEMS. Ci~ S AND THiN MUD FOR CASING. DROP SURVEY. POOH TO 4700'. R~' 'SE THE DP RUBBERS. CUT DRILLING LINE. POOH TO BHA. L~! ~!%[DP. L/D BHA. RETRIEVE SURVEY. PULL SOURCE, DOWN LC'~i~ MWD. PULL WEAR BUSHING. SET TEST PLUG. CHANGE BC .... OM RAMS TO 7-5/$" AND TEST DOOR SEALS TO 2500PSI. RIG U? SASING TOOLS. WELL : NK-12A OPERATION: RIG : POOL 7 PAGE: 4 01/31/94 (17) TD'!5040' ( 0) PREPARE TO RUN COMPLETION MW: 8.5 VIS: 0 R/U CASING TOOLS. RUN 364 JOINTS OF 7-5/8" 29.7 #L-80 CASG. P/U HANGER AND LANDING JT. LAND CASING. LAST 44 JTS. IN HOLE WERE TIGHT. CIRC AT 11 BPM, 1300PSI. INJECT PIT VOLUME DOWN FOR WORKING ROOM IN PITS. BEGIN BATCH MI>ii~-~G CEMENT AT 23:00. CEMENT 7-5/8" CASING F/S AT 15024.42' F/C A? 14944' DISPLACE W/8.5 PPG SEAWATER. BU~:iP PLUG W/4000 PSI CIP AT 02'30 ON 1/31/94. FLOATS HELD. R/D CASING TOOLS. L/D LANDING JT. SET PACKOFF. TEST TO 50~0 PSI. CHANGE BOTTOM P=AMS TO 4.5" TEST DOOR SEALS TO 2500. 02/01/94 (18) TD'iS040 p~- 0 PULL 2 WAY CHECK MW: 8.5 Seawater R/U TUBING RUNNING TOOLS. HOLD SAFETY MEETING. RUN AND LAUD COMPLETION. TEST SSSV W/500PSI DOWN ANNULUS. CLOSE SS77. BLEED PRESSURE OFF TOP OF SSSV. OK. L/D LANDING JOi~[T R/D CAMCO. SET 2-WAY CHECK. N/D BOPE, N/U TREE AND TEST 5000 PSI. R/U DRILLSITE MAINTENANCE TO PULL 2-WAY C~[Z?K. 02/02/94 ( 19) TD'!5040 p~. 0 R! 'z FELEASED MW: 6.7 Diesel PU' ~, 2-WAY CHECK. ?./U AND DISPLACE WELL W/ 280 BBLS OF Di:~'%L. EXTPdA 60 ~i~LS FOR ANNULUS FREEZE PROTECTION. DROP Bf-.~ L WAIT 30 !'.,~!~',? ?OA !T TO SEAT. SET PACKER W/2500PSI. TTi_:? TBG TO -4000, AMIqULUS T© 4000 THEN BLEED TO 0PSI. OK ON BO i;: AT 30 MIN. AOGCC ikEP DOUG A.MOS WAIVED WITNESS TO TE?-T. R/D CAMCO. SET BEV. RIG RELEASE ON 2/1/94 AT 1~: 20 HOURS SIG?IATURE: (d~ill~ng s'~:-' 7rintendent ) DATE: SURVEY REPORT B.P. EXPLORATION NIAKUK X;?ELL #NK- 12 A NIAKUK FIELD, NORTH SLOPE ALASKA MAST TRUCK FEBRUARY 28, 1994 A Gyro da t a D i r e c t i ona i S u rv e y for B.P. EXPLORATION WELL: NIAKUK ~-12 Location: MAST TRUCK, NIAKUK FIELD NORTH SLOPE ALASKA Job Number: AK0294G210 Run Date: 21-Feb-94 00:16:27 Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.340000 deg. N Sub-sea Correction from Vertical Reference: 60 ft. Bearings are Relative to True North Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyro da t a D i r e c t i on a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA MEASURED I N C L AZIMUTH DOGLEG VERTICAL SUBSEA CLOSURE DEPTH SEVERITY DEPTH DEPTH DIST. AZIMUTH feet deg. deg. deg./ feet feet feet deg. 100 ft. 0.0 0.00 0.00 0.00 0.0 -60.0 0.0 0.0 MEASURED DEPTHS REFERENCED TO RKB ELEVATION 60 PT ABOVE SEA LEVEL 0 -14900 FT. GYRODATA SURVEY IN 4 1/2 INCH TUBING (G210) Page HORIZONTAL COORDINATES feet 0.00 N 0.00 E 100.0 .24 195.09 .24 100.0 40.0 .2 195.1 200.0 .21 194.47 .02 200.0 140.0 .6 194.9 300.0 .22 173.63 .08 300.0 240.0 1.0 190.7 400.0 .03 331.81 .25 400.0 340.0 1.1 188.7 500.0 .55 13.08 .52 50~.0 440.0 .6 186.9 600.0 1.03 24.72 .50 600.0 540.0 .8 31.7 700.0 3.67 12.83 2.67 699.9 639.9 4.8 18.0 800.0 5.53 7.26 1.91 799.5 739.5 12.8 12.7 900.0 6.01 6.71 .49 899.0 839.0 22.8 10.2 1000.0 7.47 7.81 1.46 998.3 938.3 34.5 9.2 1100.0 8.65 7.51 1.18 1097.3 1037.3 48.6 8.8 1200.0 9.62 6.60 .98 1196.1 1136.1 64.4 8.3 1300.0 10.16 4.98 .61 1294.6 1234.6 81.6 7.8 1400.0 11.34 3.24 1.23 1392.8 1332.8 100.2 7.1 1500.0 12.15 2.85 .81 1490.7 1430.7 120.5 6.4 1600.0 13.60 2.82 1.44 1588.2 1528.2 142.8 5.9 1700.0 15.52 4.34 1.96 1685.0 1625.0 167.9 5.5 1800.0 16.21 3.22 .76 1781.2 1721.2 195.2 5.3 1900.0 18.10 .68 2.02 1876.7 1816.7 224.7 4.8 2000.0 20.74 357.11 2.90 1971.0 1911.0 257.7 4.1 .20 S .05 W .58 S .15 W .94 S .18 W 1.11 S .17 W .62 S .07 W .66 N .41 E 4.59 N 1.49 E 12.49 N 2.81 E 22.46 N 4.03 E 34.10 N 5.53 E 47.99 N 7.39 E 63.75 N 9.34 E 80.83 N 11.06 E 99.43 N 12.38 E 119.76 N 13.46 E 142.02 N 14.56 E 167.10 N 16.15 E 194.38 N 17.95 E 223.85 N 18.92 E 257.07 N 18.21 E A Gyro d a t a D i r e c t i o na i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA CLOSURE SEVERITY DEPTH DEPTH DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 2100.0 22.18 2200.0 23.94 2300.0 25.89 2400.0 26.54 2500.0 28.57 357.88 359.17 356.49 356.08 358.10 1.47 2064.1 2004.1 294.1 3.2 1.83 2156.0 2096.0 333.1 2.7 2.25 2246.7 2186.7 375.1 2.1 .67 2336.4 2276.4 419.1 1.5 2.23 2425.1 2365.1 465.2 1.1 293.61 N 16.62 E 332.77 N 15.63 E 374.85 N 13.99 E 418.93 N 11.13 E 465.12 N 8.81 E 2600.0 31.00 2700.0 31.56 2800.0 32.13 2900.0 34.75 3000.0 36.04 356.97 356.63 356.86 357.68 356.30 2.49 2511.9 2451.9 514.8 .7 .59 2597.3 2537.3 566.6 .4 .58 2682.3 2622.3 619.3 .1 2.66 2765.7 2705.7 674.3 359.8 1.51 284'~.2 2787.2 732.1 359.6 514.73 N 6.66 E 566.57 N 3.76 E 619.25 N .77 E 674.29 N 1.85 W 732.12 N 4.90 W 3100.0 36.50 3200.0 38.87 3300.0 39.97 3400.0 39.85 3500.0 41.24 358.52 356.64 356.35 356.78 358.21 1.39 2927.8 2867.8 791.2 359.5 2.63 3006.9 2946.9 852.3 359.3 1.11 3084.2 3024.2 915.8 359.1 .30 3160.9 3100.9 979.8 359.0 1.67 3236.9 3176.9 1044.8 358.9 791.21 N 7.56 W 852.27 N 10.17 W 915.64 N 14.05 W 979.68 N 17.90 W 1044.61 N 20.72 W 3600.0 43.38 3700.0 44.72 3800.0 45.13 3900.0 45.37 4000.0 45.81 357.29 357.32 358.72 1.33 2.41 2.23 3310.8 3250.8 1112.1 358.8 1.34 3382.7 3322.7 1181.6 358.7 1.07 3453.5 3393.5 1252.2 358.7 1.86 3523.9 3463.9 1323.2 358.7 .89 3593.9 3533.9 1394.5 358.9 1111.85 N 23.38 W 1181.30 N 26.65 W 1251.87 N 29.08 W 1322.87 N 29.05 W 1394.27 N 26.72 W 4100.0 45.31 4200.0 44.45 4300.0 44.53 4400.0 43.64 4500.0 42.84 .3O .03 357.42 354.62 351.57 1.58 3663.9 3603.9 1465.8 359.0 .88 3734.7 3674.7 1536.4 359.1 1.83 3806.1 3746.1 1606.5 359.1 2.14 3877.9 3817.9 1675.9 358.9 2.24 3950.7 3890.7 1744.1 358.7 1465.63 N 25.03 W 1536.20 N 24.82 W 1606.24 N 26.39 W 1675.63 N 31.20 W 1743.61 N 39.42 W A Gyro d a t a D i r e c t i on a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location- MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA SEVERITY DEPTH DEPTH deg./ feet feet 100 ft. CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 4600.0 42 4700.0 42 ,4800.0 41 4900.0 42 5000.0 44 .55 .44 .50 .73 .62 351.84 352.67 353.23 349.81 344.81 .34 4024.2 3964.2 .57 4098.0 4038.0 1.01 4172.3 4112.3 2.60 4246.5 4186.5 3.93 4318.8 4258.8 1811.4 358.4 1878.5 358.2 1945.1 358.0 2011.7 357.8 2079.6 357.5 1810.70 N 49.21 W 1877.63 N 58.32 W 1944.00 N 66.53 W 2010.29 N 76.44 W 2077.58 N 91.64 W 5100.0 45 5200.0 48 53OO.O 51 5400.0 53 5500.0 54 .59 .63 .77 .95 .90 342.25 340.99 336.90 332.49 328.28 2.05 4389.4 4329.4 3.18 4457.4 4397.4 4.44 4521.4 4461.4 4.14 4582.8 4521.8 3.55 4640.0 4580.0 2148.4 357.0 2219.1 356.5 2292.3 355.9 2366.7 355.2 2440.7 354.4 2145.49 N 2214.98 N 2286.58 N 2358.56 N 2429.21 N 111.73 W 134 . 83 W 162.46 W 196.54 W 236.72 W 5600.0 56 5700.0 58 5800.0 58 5900.0 58 6000.0 58 .61 .11 .85 .97 .22 325.07 323.54 320.48 321.10 322.50 3.15 4696.2 4636.2 1.97 4750.2 4690.2 2.71 4802.5 4742.5 .54 4854.1 4794.1 1.41 4906.2 4846.2 2514.1 353.6 2587.9 352.6 2661.6 351.7 2735.4 350.8 2810.3 349.9 2498.23 N 2566.61 N 2633.76 N 2700.11 N 2767.17 N 282.13 W 331.26 W 383.71 W 437.84 W 490.63 W 6100.0 58 6200.0 58 6300.0 59 6400.0 60 6500.0 59 .42 .23 .63 .07 .44 322.03 321.58 322.12 321.66 321.94 .44 4958.7 4898.7 .43 5011.3 4951.3 1.47 5062.9 5002.9 .60 5113.1 5053.1 .68 5163.5 5103.5 2886.0 349.2 2961.8 348.4 3038.7 347.7 3116.7 347.0 3195.1 346.3 2834.47 N 2901.35 N 2968.71 N 3036.74 N 3104.63 N 542.71 W 595.33 W 648.23 W 701.59 W 755.02 W 6600.0 59.30 6700.0 59.16 6800.0 59.04 6900.0 58.77 7000.0 59.23 322.69 321.33 321.88 324.36 321.77 .66 5214.4 5154.4 1.18 5265.6 5205.6 .49 5316.9 5256.9 2.14 5368.6 5308.6 2.27 5420.1 5360.1 3273.9 345.7 3352.7 345.1 3431.6 344.6 3511.4 344.0 3591.6 343.6 3172.72 N 3240.43 N 3307.68 N 3376.16 N 3444.66 N 807.62 W 860.51 W 913.81 W 965.19 W 1016.68 W A Gy r o da t a D i r e c t i o n a i S u r v ey B.P. EXPLORATION WELL: NIAKUK NK-12 Location- MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA CLOSURE SEVERITY DEPTH DEPTH DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 7100.0 58.90 7200.0 59.62 7300.0 60.85 7400.0 61.39 7500.0 60.52 322.82 324.17 323.18 323.16 322.79 .96 5471.5 5411.5 3671.6 343.1 1.36 5522.6 5462.6 3952.7 342.6 1.50 5572.2 5512.2 3834.9 342.2 .54 5620.5 5560.5 3917.8 341.8 .93 5669.1 5609.1 4000.6 341.4 3512.52 N 1069.14 W 3581.60 N 1120.26 W 365]_.53 N 1171.68 W 3721.61 N 1224.17 W 3791.41 N 1276.80 W 7600.0 60.17 7700.0 60.77 7800.0 61.44 7900.0 61.77 8000.0 61.73 323.39 325.62 323.93 323.86 326.40 .62 5718.6 5658.6 4083.2 341.0 3860.90 N 1328.99 W 2.03 5767.8 5707.8 4166.7 340.7 3931.73 N 1379.50 W 1.63 5816.2 5756.2 4251.0 340.3 4003.24 N 1429.99 W .33 5863.7 5803.7 4335.4 340.0 4074.31 N 1481.83 W 2.23 59!1.0 5851.0 4420.6 339.7 4146.57 N 1532.19 W 8100.0 61.76 8200.0 62.60 8300.0 62.21 8400.0 62.03 8500.0 62.47 326.79 327.61 325.40 323.47 322.38 .35 5958.4 5898.4 4506.4 339.5 1.11 6005.0 5945.0 4592.9 339.2 2.00 6051.4 5991.4 4679.3 339.0 1.71 6098.1 6038.1 4764.9 338.7 1.07 6144.7 6084.7 4850.1 338.4 4220.10 N 4294.44 N 4368.33 N 4440.22 N 4510.83 N 1580.69 W 1628.59 W 1677.49 W 1728.89 W 1782.24 W 8600.0 62.53 8700.0 62.78 8800.0 62.80 8900.0 62.83 9000.0 63.14 324.28 322.95 321.92 323.93 323.37 1.69 6190.9 6130.9 4935.8 338.2 1.21 6236.8 6176.8 5021.8 337.9 · 91 6282.5 6222.5 5107.6 337.7 1.79 6328.2 6268.2 5193.7 337.4 .59 6373.6 6313.6 5280.3 337.2 4581.96 N 4653.47 N 4723.96 N 4794.93 N 4866.68 N 1835.21 W 1887.90 W 1942.12 W 1995.73 W 2048.54 W 9100.0 61.69 9200.0 60.55 9300.0 59.45 9400.0 59.77 9500.0 59.85 323.42 323.02 324.08 325.76 326.42 1.45 6419.9 6359.9 5366.4 336.9 1.19 6468.2 6408.2 5451.5 336.7 1.44 6518.2 6458.2 5535.8 336.5 1.48 6568.8 6508.8 5620.3 336.3 .58 6619.1 6559.1 5705.4 336.2 4937.83 N 5007.96 N 5077.62 N 5148.20 N 5219.93 N 2101.38 W 2153.81 W 2205.26 W 2254.82 W 2303.05 W A Gyr od a t a D i r e c t i o n a I Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA CLOSURE H 0 R I Z 0 N T A L SEVERITY DEPTH DEPTH DIST. AZIMUTH C O O R D I N A T E S deg./ feet feet feet deg. feet 100 ft. 9600.0 59.32 32 9700.0 59.55 32 9800.0 58.82 32 9900.0 58.33 32 10000.0 58.41 32 4.26 3.02 2.80 3.29 3.26 1.93 6669.7 6609.7 5790.1 336.0 1.10 6720.6 6660.6 5874.2 335.9 .75 6771.8 6711.8 5958.0 335.7 .64 6823.9 6763.9 6041.3 335.5 .08 6876.4 6816.4 6124.5 335.3 5290.85 N 2352.08 W 5360.19 N 2403.13 W 5428.69 N 2454.92 W 5496.87 N 2506.23 W 5565.12 N 2557.14 W 10100.0 58.08 32 10200.0 58.58 32 10300.0 58.36 32 10400.0 58.74 32 10500.0 58.59 31 3.02 3 .46 0.32 0.40 9.93 .39 6929.0 6869.0 6207.6 335.2 .63 6981.5 6921.5 6290.9 335.0 2.68 7033.8 6973.8 6374.0 334.8 .38 7086.0 7026.0 6456.6 334.6 .43 7136.0 7078.0 6539.3 334.4 5633.15 N 2608.15 W 5701.33 N 2659.09 W 5768.38 N 2711.68 W 5834.07 N 2766.10 W 5899.66 N 2820.81 W 10600.0 58.53 31 10700.0 58.22 32 10800.0 58.64 32 10900.0 58.68 31 11000.0 59.72 31 9.16 0.01 0.27 8.55 9.34 .66 7190.1 7130.1 6621.8 334.3 .78 7242.6 7182.6 6704.2 334.1 .47 7294.9 7234.9 6786.9 333.9 1.47 7346.9 7286.9 6869.7 333.7 1.24 7398.2 7338.2 6952.7 333.5 5964.57 N 6029.40 N 6094.79 N 6159.64 N 6224.41 N 2876.17 W 2931.37 W 2985.98 W 3041.54 W 3097.95 W 11100.0 60.72 320.84 11200.0 61.13 319.25 11300.0 61.54 319.72 11400.0 61.68 319.70 11500.0 61.76 320.77 1.64 7447.8 7387.8 7037.2 333.4 1.45 7496.4 7436.4 7122.2 333.2 · 58 7544.4 7484.4 7207.5 333.0 .14 7591.9 7531.9 7293.1 332.9 .94 7639.3 7579.3 7379.1 332.7 6290.97 N 6357.96 N 6424.66 N 6491.77 N 6559.46 N 3153.63 W 3209.75 W 3266.76 W 3323.64 W 3379.97 W 11600.0 61.82 319.15 11700.0 61.78 321.02 11800.0 61.18 321.46 11900.0 60.53 322.71 12000.0 59.90 323.35 1.43 7686.6 7626.6 7465.0 332.6 1.65 7733.8 7673.8 7551.1 332.4 · 72 7781.6 7721.6 7637.3 332.3 1.27 7830.3 7770.3 7723.2 332.2 · 84 7880.0 7820.0 7808.9 332.1 6626.92 N 6694.50 N 6763.01 N 6831.91 N 6901.25 N 3436.66 W 3493.20 W 3548.21 W 3601.88 W 3654.07 W A Gyro da t a D i r e c t i ona i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA SEVERITY DEPTH DEPTH deg./ feet feet 100 ft. 12100.0 60.35 321 12200.0 59.74 322 12300.0 59.85 321 12400.0 60.28 322 12500.0 60.24 323 .75 .52 .38 .75 .84 1.46 7929.8 7869.8 .91 7979.7 7919.7 .99 8030.0 7970.0 1.26 8079.9 8019.9 .94 8129.5 8069.5 12600.0 60.98 321 12700.0 60.33 322 12800.0 60.72 323 12900.0 60.59 323 13000.0 59.87 324 .74 .76 .42 .34 .19 1.97 8178.6 8118.6 1.10 8227.6 8167.6 .70 8276.8 8216.8 .15 8325,8 8265.8 1.04 8375.5 8315.5 13100.0 60.33 323 13200.0 59.31 323 13300.0 58.84 323 13400.0 58.05 323 13500.0 57.03 324 .12 .91 .98 .48 .20 1.04 8425.3 8365.3 1.23 8475.6 8415.6 .47 8527.0 8467.0 .90 8579.3 8519.3 1.18 8633.0 8573.0 13600.0 56.03 324 13700.0 54.34 324 13800.0 53.30 325 13900.0 53.46 327 14000.0 54.22 329 .29 .93 .49 .97 .68 1.01 8688.1 8628.1 1.77 8745.2 8685.2 1.13 8804.2 8744.2 2.00 8863.9. 8803.9 1.57 8922.9 8862.9 14100.0 54.72 14200.0 53 . 90 14300.0 54.71 14400 . 0 56.94 14500.0 57.77 329.55 330.27 329.72 328.04 330.56 .51 8981.0 8921.0 1.00 9039.4 8979.4 .93 9097.7 9037.7 2.63 9153.9 9093.9 2.28 9207.8 9147.8 Page CLOSURE H O R I Z O N T A L DIST. AZIMUTH C O 0 R D I N A T E S feet deg. feet 7894.4 332.0 7979.8 331.9 8065.0 331.8 8150.4 331.7 8236.3 331.6 8322.4 331.5 8408.4 331.4 8494.6 331.3 8580.9 331.2 8667.0 331.2 8752.9 331.1 8838.6 331.0 8923.8 330.9 9008.3 330.9 9092.0 330.8 9174.9 330.8 9256.5 330.7 9336.9 330.7 9416.9 330.6 9497.6 330.6 9579.0 330.6 9660.2 330.6 9741.4 330.6 9824.1 330.6 9908.2 330.6 6970.08 N 3706.79 W 7038.48 N 3759.97 W 7106.53 N 3813.23 W 7174.88 N 3866.49 W 7244.50 N 3918.39 W 7313.87 N 3971.07 W 7382.79 N 4024.44 W 7452.39 N 4076.72 W 7522.35 N 4128.72 W 7592.36 N 4180.03 W 7662.18 N 7731.68 N 7801.03 N 7869.73 N 7937.84 N 8005.54 N 8072.46 N 8138.74 N 8205.84 N 8274.91 N 8345.11 N 8415.38 N 8485.71 N 8556.51 N 8628.90 N 4231.39 W 4282.79 W 4333.28 W 4383.69 W 4433.47 W 4482.21 W 4529.76 W 4575.81 W 4619.83 W 4661.61 W 4702.78 W 4743.49 W 4784.11 W 4826.87 W 4869.84 W A Gyro da t a D i r e c t i o n a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, Job Number: AK0294G210 NIAKUK FIELD NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA CLOSURE H 0 R I Z O N T A L SEVERITY DEPTH DEPTH DIST. AZIMUTH C O O R D I N A T E S deg./ feet feet feet deg. feet 100 ft. 14600.0 58.98 331.26 14700.0 59.89 329.35 14800.0 60.79 329.78 14900.0 61.62 329.56 1.35 9260.2 9200.2 9993.4 330.6 1.88 9311.1 9251.1 10079.5 330.6 .97 9360.5 9300.5 10166.4 330.6 .86 9408.7 9348.7 10254.0 330.5 8703.30 N 4911.23 W 8778.08 N 4953.89 W 8853.01 N 4997.91 W 8928.65 N 5042.16 W Final Station Closure: Distance: 10253.98 ft Az: 330.55 deg. A Gyro da t a D i re c t i on a B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD NORTH SLOPE ALASKA Job Number: AK0294G210S 1 Survey Page MEASURED I N C L AZIMUTH DOGLEG VERTICAL SUBSEA DEPTH SEVERITY DEPTH DEPTH feet deg. deg. deg./ feet feet 100 ft. CLOSURE DIST. AZIMUTH feet deg. H O R I Z 0 N T A L COORDINATES feet 0.0 0.00 0.00 0.00 0.0 -60.0 0.0 0.0 ,- MEASURED DEPTHS REFERENCED TO RKB ELEVATION 60 PT ABOVE SEA LEVEL 0 -14900 FT. GYRODATA SURVEY IN 4 1/2 INCH TUBING (G210) SURVEY DATA REFERENCED TO SUBSEA DETHS AT 100 FT INTERVALS 0.00 N 0.00 E 160.0 .22 194.72 .11 160.0 100.0 .6 260.0 .21 181.96 .06 260.0 200.0 1.0 360.0 .10 268.54 .18 360.0 300.0 1.1 460.0 .34 356.57 .41 460.0 400.0 .6 560.0 .83 20.06 .51 560.0 500.0 .8 660·1 2.61 17·58 1·81 660.0 600.0 4.8 760.3. 4.79 9.47 2.21 760.0 700.0 12.8 860.8 5.82 6.93 1.05 860.0 800.0 22.8 961.4 6.91 7.39 1.08 960.0 900.0 34.5 1062.3 8.20 7.62 1.29 1060.0 1000.0 48.6 1163.5 9.26 6.93 1.05 1160.0 1100.0 64.4 1264.9 9.97 5.55 .74 1260.0 1200.0 81.6 1366.6 10.95 3.82 1.02 1360.0 1300.0 100.2 1468.6 11.90 2.97 .94 1460.0 1400.0 120.5 1571.1 13.18 2.83 1.26 1560.0 1500.0 142.8 1674.2 15.03 3.94 1.83 1660.0 1600.0 167.9 1778.0 16.06 3.47 1.02 1760.0 1700.0 195.2 1882.5 17.77 1.13 1.80 1860.0 1800.0 224.7 1988.3 20.43 357.53 2.80 1960.0 1900.0 257.7 195.0 192.4 189·5 187.6 · 43 S .11 W .80 S .17 W 1.04 S .17 W .81 S .11 W 93.8 .64 N .27 E 23.5 3.02 N 1.06 E 14.8 9.35 N 2.29 E 11.2 18.55 N 3.55 E 9.6 29.61 N 4.95 E 8.9 8.5 8.0 7.3 6.6 6.0 5.6 5.3 4.9 4.1 42.76 N 6.69 E 57.99 N 8.63 E 74.83 N 10.46 E 93.22 N 11.94 E 113.38 N 13.12 E 135.58 N 14.24 E 160.63 N 15.74 E 188.38 N 17.55 E 218.70 N 18.75 E 253.20 N 18.29 E A Gyro da t a D i r e c t i o n a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD Job Number: AK0294G210S NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet deg. deg. deg./ 100 ft. VERTICAL SUBSEA CLOSURE DEPTH DEPTH DIST. AZIMUTH feet feet feet deg. HORIZONTAL COORDINATES feet 2095.6 22.12 357.85 1.53 2204.4 24.03 359.05 1.85 2314.8 25.99 356.43 2.02 2426.6 27.08 356.62 1.09 2540.2 29.55 357.65 2.34 2060.0 2000.0 2160.0 2100.0 2260.0 2200.0 2360.0 2300.0 2460.0 2400.0 294.1 3.3 375.1 2.7 419.1 2.0 465.2 1.4 514 . 8 . 9 292.02 N 16.69 E 334.60 N 15.55 E 381.37 N 13.57 E 431.21 N 10.51 E 485.08 N 7.94 E 2656.3 31.32 356.78 1.42 2773.8 31.98 356.80 .59 2893.2 34.58 357.62 2.52 3015.9 36.11 356.66 1.49 3140.7 37.47 357.76 1.90 2560.0 2500.0 2660.0 2600.0 2760.0 2700.0 285C.0 2800.0 2960.0 2900.0 566.6 .5 619.3 .2 674.3 359.9 791.2 359.6 852.3 359.4 543.93 N 5.03 E 605.45 N 1.55 E 670.54 N 1.77 W 741.51 N 5.32 W 816.04 N 8.62 W 3268.7 39.62 356.44 1.59 3398.8 39.85 356.77 .31 3531.3 41.91 357.93 1.85 3668.4 44.30 357.31 1.62 3809.2 45.15 358.96 1.15 3060.0 3000.0 3160.0 3100.0 3260.0 3200.0 3360.0 3300.0 3460.0 3400.0 915.8 359.2 979.8 359.0 1112.1 358.8 1181.6 358.7 1323.2 358.7 895.80 N 12.84 W 978.93 N 17.85 W 1065.63 N 21.55 W 1159.37 N 25.61 W 1258.44 N 29.08 W 3951.6 45.60 1.88 1.36 4094.5 45.34 .42 1.54 4235.4 44.48 359.10 1.22 4375.1 43.86 355.32 2.06 4512.6 42.80 351.60 2.00 3560.0 3500.0 3660.0 3600.0 3760.0 3700.0 3860.0 3800.0 3960.0 3900.0 1394.5 358.8 1465.8 359.0 1606.5 359.1 1675.9 359.0 1811.4 358.7 1359.71 N 1461.68 N 1561.01 N 1658.34 N 1752.05 N 27.85 W 25.12 W 25.38 W 3O. 00 W 4O. 66 W 4648.5 42.49 352.24 .46 4783.4 41.66 353.13 .94 4918.7 43.09 348.88 2.85 5058.3 45.18 343.32 2.84 5204.0 48.75 340.83 3.23 4060.0 4000.0 4160.0 4100.0 4260.0 4200.0 4360.0 4300.0 4460.0 4400.0 1878.5 358.3 1945.1 358.1 2079.6 357.8 2148.4 357.2 2292.3 356.5 1843.16 N 1932.99 N 2022.85 N 2117.20 N 2217.84 N 53.63 W 65.17 W 79.27 W 103.36 W 135.94 W A Gy r o da t a D i r e c t i o n a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD Job Number: AK0294G210S NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet deg. deg. deg./ 100 ft. VERTICAL SUBSEA CLOSURE DEPTH DEPTH DIST. AZIMUTH feet feet feet deg. HO R I.Z ON TAL COORDINATES feet 5363.9 53.16 334.08 4.25 5535.6 55.51 327.14 3.41 5718.8 58.25 322.97 2.11 5911.3 58.88 321.25 .64 6102.4 58.41 322.02 .44 4560.0 4500.0 4660.0 4600.0 4760.0 4700.0 4860.0 4800.0 4960.0 4900.0 2366~7 355.5 2514.1 354.1 2661.6 352.5 2810.3 350.7 2961.8 349.1 2332.57 N 2453.77 N 2579.22 N 2707.69 N 2836.07 N 184.23 W 252.88 W 341.11 W 443.81 W 543.96 W 6294.5 59.55 322.09 1.41 6493.1 59.48 321.92 .67 6689.1 59.18 321.47 1.12 6883.4 58.82 323.95 1.87 7077.7 58.97 322.59 1.25 5060.0 5000.0 5160.0 5100.0 5260.0 5200.0 5360.0 5300.0 5460.0 5400.0 3038.7 347.7 3195.1 346.4 3352.7 345.2 3511.4 344.1 3671.6 343.2 2964.97 N 3099.97 N 3233.07 N 3364.81 N 3497.38 N 645.30 W 751.35 W 854.76 W 956.67 W 1057.44 W 7275.4 60.55 323.42 1.47 7481.3 60.68 322.86 .86 7684.1 60.68 325.27 1.81 7892.2 61.75 323.86 .43 8103.5 61.79 326.82 .38 5560.0 5500.0 5660.0 5600.0 5760.0 5700.0 5860.0 5800.0 5960.0 5900.0 3834.9 342.3 4000.6 341.5 4166.7 340.7 4335.4 340.0 4592.9 339.5 3634.30 N 3778.37 N 3920.47 N 4068.78 N 4222.70 N 1159.01 W 1266.96 W 1371.47 W 1477.80 W 1582.36 W 8318.5 62.18 325.04 1.95 8533.2 62.49 323.01 1.27 8750.8 62.79 322.43 1.06 8970.0 63.05 323.54 .95 9183.0 60.75 323.09 1.24 6060.0 6000.0 6160.0 6100.0 6260.0 6200.0 6360.0 6300.0 6460.0 6400.0 4764.9 338.9 4935.8 338.4 5107.6 337.8 5280.3 337.2 5451.5 336.8 4381.62 N 4534.43 N 4689.27 N 4845.19 N 4996.06 N 1686.98 W 1799.81 W 1915.44 W 2032.72 W 2144.91 W 9382.6 59.71 325.47 1.47 9580.8 59.42 324.68 1.67 9777.0 58.99 322.85 .83 9968.8 58.38 323.27 .25 10159.1 58.38 323.28 .53 6560.0 6500.0 6660.0 6600.0 6760.0 6700.0 6860.0 6800.0 6960.0 6900.0 5620.3 336.4 5790.1 336.1 5958.0 335.7 6124.5 335.4 6290.9 335.1 5135.94 N 5277.26 N 5412.93 N 5543.83 N 5673.42 N 2246.22 W 2342.69 W 2443.01 W 2541.26 W 2638.24 W A Gyr oda t a D i r e c t i o n a i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD Job Number: AK0294G210S NORTH SLOPE ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet deg. deg. deg./ 1'00 ft. VERTICAL SUBSEA CLOSURE H O R I Z O N T A L DEPTH DEPTH DIST. AZIMUTH C O O R D I N A T E S feet feet feet deg. feet 10350.3 58.55 320.36 1.52 10542.2 58.56 319.60 .53 10733.3 58.36 320.09 .68 10925.5 58.94 318.75 1.41 11125.1 60.82 320.44 1.60 7060.0 7000.0 7160.0 7100.0 7260.0 7200.0 7360.0 7300.0 7460.0 7400.0 6456.6 334.7 6621.8 334.4 6786.9 334.0 6952.7 333.7 7122.2 333.3 5801.39 N 2739.02 W 5927.08 N 2844.19 W 6051.17 N 2949.55 W 6176.15 N 3055.92 W 6307.76 N 3167.70 W 11332.8 61.59 319.71 .44 11543.8 61.79 320.06 1.15 11754.8 61.45 321.26 1.14 11959.8 60.15 323.09 1.02 12160.5 59.98 322.22 1.13 7560.0 7500.0 7660.0 7600.0 7760.0 7700.0 7860 0 7800.0 7960.0 7900.0 7293.1 333.0 7465.0 332.7 7637.3 332.4 7808.9 332.1 7979.8 331.9 6446.70 N 3285.44 W 6589.00 N 3404.79 W 6732.05 N 3523.35 W 6873.39 N 3633.10 W 7011.49 N 3738.99 W 12360.1 60.11 322.21 1.16 12562.1 60.70 322.53 1.58 12765.9 60.59 323.19 .83 12968.9 60.09 323.93 .76 13169.0 59.62 323.67 1.17 8060.0 8000.0 8160.0 8100.0 8260.0 8200.0 8360.0 8300.0 8460.0 8400.0 8150.4 331.7 8322.4 331.5 8494.6 331.3 8667.0 331.2 8838.6 331.0 7147.61 N 3845.24 W 7287.61 N 3951.13 W 7428.64 N 4058.88 W 7570.56 N 4164.05 W 7710.14 N 4266.86 W 13363.1 58.34 323.66 .74 13549.0 56.54 324.25 1.10 13725.0 54.08 325.07 1.61 13893.5 53.45 327.81 1.95 14063.8 54.54 329.60 .89 8560.0 8500.0 8660.0 8600.0 8760.0 8700.0 8860.0 8800.0 8960.0 8900.0 9008.3 330.9 9174.9 330.8 9336.9 330.7 9416.9 330.6 9579.0 330.6 7844.37 N 7971.00 N 8089.06 N 8201.46 N 8319.73 N 4365.08 W 4457.35 W 4541.29 W 4616.96 W 4687.89 W 14235.4 54.19 330.08 .98 14411.4 57.04 328.33 2.59 14599.6 58.98 331.25 1.35 14798.9 60.78 329.78 .98 14900.0 61.62 329.56 .86 9060.0 9000.0 9160.0 9100.0 9260.0 9200.0 9360.0 9300.0 9408.7 9348.7 9741.4 330.6 9908.2 330.6 9993.4 330.6 10166.4 330.6 10254.0 330.5 8440.27 N 8564.76 N 8702.99 N 8852.18 N 8928.65 N 4757.87 W 4831.77 W 4911.06 W 4997.42 W 5042.16 W A Gyro da t a D i r e c t i o na i Survey B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD NORTH SLOPE ALASKA Job Number: AK029d. G210S Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA CLOSURE SEVERITY DEPTH DEPTH DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet Final Station Closure: Distance: 10253.98 ft Az: 330.55 deg. Quality Control Comparisons B.P. EXPLORATION WELL: NIAKUK NK-12 Location: MAST TRUCK, NIAKUK FIELD NORTH SLOPE ALASKA Job Number : AK0294G210 / AK0294G210 INRUN/OUTRUN Comparison INRUN OUTRUN INRUN Depth Inc Inc Delta Az 1000.0 7.39 7~47 -.08 8.25 2000.0 20.61 20.74 -.13 356.76 3000.0 36.02 36.04 -.02 358.47 4000.0 45.81 45.81 -.01 3.11 5000.0 44.62 44.62 -.00 344.39 6000.0 58.30 58.22 .09 320.49 7000.0 59.37 59.23 .14 320.91 8000.0 61.83 61.73 .10 323.16 9000.0 63.13 63.14 -.01 324.17 10000.0 58.51 58.41 .11 322.32 11000.0 59.82 59.72 .11 318.61 12000.0 59.94 59.90 .04 322.63 13000.0 60.09 59.87 .23 323.16 14000.0 54.16 54.22 -.06 328.46 14900.0 61.63 61.62 .00 329.61 For Inclinations Greater than 10 degrees: Average Inclination Difference = .04156 deg. Average Azimuth Difference = -.5570 deg. OUTRUN Az 7.81' 357.11 356.30 2.41 344.81 322.50 321.77 326.40 323.37 323.26 319.34 323.35 324.19 329.68 329.56 Delta .44 -.35 2.17 .70 -.43 -2.01 -.86 -3.24 .80 -.94 -.73 -.72 -1.03 -1.22 .05 B.P, EXPLOitATION 'WELL' N[A.[(UN NK- 12 L o c a't i o n' M A S T T R U C K, NIAKUX FIELD NORTH SLOPE ALASKA AN0294G210 Definitive 9000,0 8000,0 ?000,0 ~000,0 5000,0 ~000,0 3000,0 ~000.0 I000,0 1000,0 Mi): ,"1900,00 6000,0 ~500,0 ,1500,0 4000,0 3500,0 3000,0 8500,0 8000,0 1500,0 1000,0 500,0 0,0 ~ASTING 500,0 Z h- L~J Cz} ff- Ld ~0000,0 9000,0 8000,0 7000,0 6000,0 5000,0 4000,0 3000,0 2000,0 1000,0 O,O -1000,0 B.P. EXPLORATION WELL: NIAKUI( NK-- 12 ..iI.~, ................... o c ~ t.. ,.~ ........................ o :,:-~: L_'M ..... n 8.'...?__;...EI I. R .... '___;LT C K, NIAKUt{ FIELD NOI~TH SLOPE ALASKA AK0294G210 Definitive Bottom hole Located ................. HS~ 14900,00 .... --~'~ . . ~, . . . ........ . ....~ .. ..... ~.... ~ .... .. ..... ...~., '.' . ~. ~ ...... · ~.~' ' ' .~ .... · .~ ~ · . ' ~,~ ~.$. ' ~.* ~ · eeee+e*ee . eeee -~ee~ee e'eeeee'~ . .' ....... ' -~ ~C~ . .... 0,0 1000,0 8000,0 3000,0 4000,0 5000,0 6000,0 7000,0 8000,0 9000,0 10000,0 11000,0 18000,0 13000,0 14000,0 15000,0 16000,0 MEASURED DEPTH 8.P. EXPLORA'FION ~ ~VELL: NIAI(UX NK- 12 7,o LocaLion' MAST T.RUCK, NIAKUK FIELD NORTH SLOPE ALASKA Af{0994Ga10 Definitive 6,0 -.~ 5,0 q_. CE) CZ) CD 4,0 t--- 3,O I .,_1 O0 LD L__J 8000 13000 Bottom ho[e located MD: 14900,00 0,~ ......... -1-C~'-0~'.5 ...... ~{~- ..... ~-~i[3,0 4000,0 SO00,O 6000,0 7000,0 8000,0 9000,0 10000,0 11000,0 laO00,O 13000,0 14000,0 15000,0 16000,0 Ivl_F_.ASLJRF..ID 3EPT-I (-F'-~) 30,0 .B P. ~:,z,..L' L01'~ . [0 N' WELL: NIAI(UI( NK- 12 Lo c a ti o ]:.~. ' MA ST T]RU C K, NIAKUK FIELD NORTH SLOPE ALASKA AK0294G210 Definitive ~0,0 350,0 340,0 330,0 310,0 300,0_ 0,( ?_000,0 B000,0 4000,0 5000,0 6000,0 7000,0 8000,0 I"'lC A SURE g DEPTH 9000,0 10000,0 11000,0 12000,0 13000,0 14000,0 15000.0 16000,0 B.I'~. E×PLORAT~ON WELL' NIAKUK. NK- 12 ~0,0 LocaLion' MAST TR'UCK, NIAKUK FIELD NORTH SLOPE ALASKA AI(0294G£10 Definitive Z 80,0 70,0 60,0 50,0 40,0 30,0 10.0 :; 0,[t 1000,0 Bo-I:-t:on hole [oca"ted MD: 14900,00 ? L~O00,O 3000,0 4000,0 5000,0 6000,0 7000,0 8000,0 9000,0 10000,0 11000,0 18000,0 13000,0 14000,0 15000,0 16000.0 PLEASURE]'} DEPTH (F-t:) B.P. EXPLORATION 'WELL,: NIAKUK NK- NIAKUK FIELD NORTH SLOPE ALASKA AK0294G210 Definitive 180,0 160,0 140,0 lfO,O 80,0 60,0 40,0 1000,0 Bo±ton hole [ocated 14900,00 /' ~_000,0 3000,0 4000,0 5000,0 6000,0 7000,0 8000,0 9000,0 10000,0 11000,0 18000,0 13000,0 14000,0 15000,0 HF-ASU~D DEPTH (£-h) 16000,0 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 Porcupine Drive Anchorage Alaska 99501-3192 Re: THE APPLICATION OF BP ) EXPLORATION (ALASKA) ) INC. for an order granting ) an exception to spacing ) requirements of Title ) 20 AAC 25.055 to provide ) for the drilling of the BP Niakuk ) No. 12A development oil well ) Conservation Order No. 328 BP Exploration (Alaska), Inc. Niakuk No. 12A January 10, 1994 IT APPEARING THAT: · BP Exploration (Alaska), Inc. submitted an application dated December 23, 1993 requesting exception to 20 AAC 25.055(a)(3) to allow drilling the BP Niakuk No. 12A development oil well to a location that is closer than 500 feet to a drilling unit boundary and is the second well drilled to a single pool within a governmental quarter section. 2~ Notice of opportunity for public hearing was published in the Anchorage Daily News on December 24, 1993 pursuant to 20 AAC 25.540. 3. No protests to the application were received. FINDINGS: · The BP Niakuk No. 19.A well as proposed will be a deviated hole drilled from a surface location 1327' from the south line and 996' from the east line (FEL) of Section 36, T12N, R'15E, Umiat Meridian (UM) to a proposed bottom-hole location of 295' from the south line and 790' FEL of Section 23, T12N, R15E, UM. · BP Exploration (Alaska) Inc. is the owner and operator of all governmental quarter sections directly and diagonally offsetting the proposed bottom-hole location of the well. , An exception to 20 AAC 25.055(a)(3) is necessary to allow drilling of this well. Conservation Ord,, ,.o. January 10, 1994 Page 2 328 CONCLUSION' Granting a spacing exception to allow drilling of the BP Niakuk No. 12A well as proposed will not result in waste nor jeopardize correlative rights. NOW, THEREFORE, IT IS ORDERED: BP Exploration (Alaska), Inc.'s application for exception to 20 AAC 25.055 for the purpose of drilling the Niakuk No. 12A well is approved as proposed. DONE at Anchorage, Alaska and dated January 10, 1994. David W.(~Johnston~ Chair~ian ~ Alaska Oi~Conservation Commission Russell A. Douglass, C~missioner Alaska Oil and Gas Conservation Commission ~/uckerman A. Babcock, Commissioner Alaska Oil and Gas Conservation Commission AS 31.05.080 provides that within 20 days after receipt of written notice of the entry of an order, a person affected by it may file with the Conunission an application for reheating. A request for rehearing must be received by 4:30 PM on the 23rd day folloxving the date of the order, or next working day ifa holiday or weekend, to be timely filed. The Conmfission shall grm~t or refitse the application in whole or in part within 10 days. The Conmfission can retiree an application by not acting on it within the 10-day period. An affected person has 30 days from the date the Conunission refuses the application or mails (or otherwise distributes) an order upon rehearing, both being the final order of the Conmfission, to appeal the decision to Superior Court. Where a request for rehearing is deuied by nonaction of the Conunissiou, the 30-day period for appeal to Superior Court ntns from the date on which the request is deemed denied (i.e., 10th day after the application for reheating was filed). ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 January 10, 1994 Michael Zanghi Drilling Engineer Supervisor BP Exploration (Alaska), Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Niakuk NK-12A BP Exploration (Alaska), Inc. Permit No. 94-07 Sur. Loc. 1327'NSL, 996'WEL, Sec. 36, T12N, R15E, UM Btmnhole Loc. 295'NSL, 790'WEL, Sec. 23, T12N, R15E, UM Dear Mr. Zanghi: Enclosed is the approved application for permit to redrill the above referenced well. The permit to redrill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25' 035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Commission to witness a test of BOPE installed prior to drilling new hole. Notice may be given by contacting t'he Commission petroleum field inspector on the North Slope pager at 659-3607. David W. ~ohnston~ Chairman ~ BY ORDER OF THE COMMISSION dlf/Enclosures CC: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PER IT TO DRILL 2O AAC 25.OO5 la. Type of work Drill [] Redrill[[]llb. Type of well. Exploratory[] Stratigraphic Test[] Development OilC] Re-Entry [] DeepenI-!I Service [] Development Gas [] Single Zone [] Multiple Zone [] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration KBE = 60 feet Niakuk 3. Address i6. Property Designation _.P_.~O. Box 196612. Anchoraae. Alaska 99519-6612 ADL 34630 4. Location of well at surf-ace 7. Unit or property Name 11. Type Bond(me 20 ^^c 25.m5) 1327' NSL, 996' WEL, SEC. 36, T12N, R15E Niakuk At top of productive interval 8. Well number Number 285' SNL, 352' WEL, SEC. 26, T12N, R15E NK-12A U-630610 At total depth 9. Approximate spud date Amount 295' NSL, 790' WEL, SEC. 23, T12N, R 15E 1/11/94 $200,000. O0 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property lb. Proposed depth(MD~,,d'rvD) property line ADL 34629-4773' feet NK-2-958' @ 15462' MD feet 2560 15462' MD/9585' TVD feet 16. To be completed for deviated wells 17. Anticipated pressure (6~ 20 AAC 25.035 (.,)(2)) Kickoff depth so53 feet Maximum hole angle 6~ o Maximum sudace 3330 pslg At total depth (TVD) 8800'/4390 pslg 18. Casing program Specifications Setting Depth s~ze Top Bottom Quantit)/ of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 9-7/8" 7-5/8" 29.7# Nr-95HS NSCT 15206' 41' 41' 15462' 9585' 606 cu ft Class "G" 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured 11490 feet Plugs (measured) 11490'-10990'-270 cu ft Class "G" true vertical 9347 feet 5053'-4672'-270 cu ft Class "G" Effective depth: measured 4672 feet Junk (measured) true vertical 4067 feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor 80' 20" 280 cu ft Arcticset 80' 80' Surface 4724' 10-3/4" 435cult "G' 4764' ,[".~ FIV Intermediate ";"'~ ~ · E Production Liner ...;,'~:,i"~ 'i !~) Perforation depth' measured None .. true vertical :'"" '';;~' ~''~ ¢.;. (:i~ ¥0ris. Oo;~il~J~;sjo~ 20. Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] Drilling prograrrr~'~~: Drilling fluid pro, ram [] Time vs depth plot [] Refraction analysis l-I Seabed reportl-I 20 AAC 25.050 requirementsE3 21. I hereby certify that the forego~'~g is true and correct to the best of my knowledge Signed ~.': ~-'""~-~i Title Drillin~ EngineerSupervisor Date/? / k, Commission Use Only ISee cover letter Permit Number ]APl!_CJmber IApproval date '~?" Ifor other requirements Conditibns of approval Samples required [] Yes [] No Mud log required []Yes [] No Hydrogen sulfide measures [] Yes J~ No Directional survey required [] Yes [] No Required working pressure for BOPE F'I2M; []3M; .[~.bM; 1-110M; []15M; Other: Odgfnaf Sfgned By by order of Approved by David W, J0hnstor-, Commissioner me commission Date --orm 10-401 Rev. 12-1-85 Submit plicate I Well Name: INK 12A Well Plan Summary IType of Well (producer or injector): IPre-produced water injector NK 12A WILL BE DRILLED FROM SLOT #12, USING THE SURFACE CASING OF NK 12, SET AT 4764'. A CEMENT PLUG WAS SET, TOP AT 4672', BOTTOM AT 5053'. KICK OFF BELOW THE SHOE TO THE NEW TARGET. ISurface Location- Target Location- Bottom Hole Location- 1327 FSL, 996 FEL, SEC 36, T12N, R15E 285 FNL, 352 FEL, SEC 26, T12N, R15E 295 FSL, 790 FEL, SEC 23, T12N, R15E AFE Number: 731035 Rig- POOL#7 IEstimated Start 11/10/941Date- IOperating days to 118 complete: IaD. 115462 I ITVD: 1958S I IKBE: !6°' IWell Design (conventional, slimhole, etc.)' ISLIMHOLE / LONGSTRING Formation Markers: Formation Tops M D TVD (BKB) TOP WEST SAK BASE WEST SAK TUFFS 13185 8400 60° HRZ KUPARUK-TOP 14611 9165 60° KUPARUK-BASE 15208 9460 TD 15462 9585 Casing/Tubing Program: Cons. Com, m~ss~o~ Anc~ora~ Mud Program: ISpecial design considerations 3% KCL mud for Kuparuk formation damage control. Surface Mud Properties' I NONE REQUIRED-ALREADY DRILLED Density Marsh Yield 10 sec 10 min p H Fluid (PPG) Viscosity Point gel gel Loss Intermediate Mud Properties: start IFresh LSND Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.5 50 20-40 15-20 20-30 9-10 10-20 AN OPEN HOLE DISPLACEMENT A/ILL BE PERFORMED TO 3% KCL Production Mud Properties: 13% KCL Kuparuk I Density PV Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point ~el ~lel Loss 9.5 8-15 25-30 5-15 10-20 9-1 0 10-15 10.0 15-30 25-30 8-12 <25 9-9.5 4-15 <15HTHP Well Control: Well control equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and drilling fluid system schematics on file with AOGCC. Directional: KOP: 14914' Tie-in, kick-off before base of I cement plug at 5053' Maximum Hole 61° Azimuth=323o Angle: Close Approach Well- Niakuk 2- 958'@ 15462' md The above listed wells will be secured during the close approach. Hole Csg/ Wt/Ft Grade Conn Length Top Btm Size Tbg MD/TVD MD/TVD O.D. bkb bkb INSTALLED 20" 941/ H-40 WLD 80' GL 80/80 INSTALLED 10-3/4" 45.5t/ NT-80S BTC 4723 41'/41 4764/4135 9-7/8" 7-5/8" 29.7# NT-95HS NSCT 15421 41'/41 15462/9585 TBG 4-1/2" 12.6# NT-80 NSCT 14459 41'/41 14500/9110 Logging Program: IOpen Hole Logs: SURFACE PRODUCTION Cased Hole Logs: Anadrill directional MWD only. Inteq Sample catchers from top Tuffs to TD. Anadrill MWD Triple Combo (real time/ from top Kuparuk to TD. Cement Bond Log (After Rig Release)/gyro RECEIVED Gas Cons. Commission Anchorago Intermediate Casing Depth: Intermediate Casing Size Intermediate Casing Weight: Proposed Top of Cement Bit Diameter: Excess Factor: MD CEMENT COLUMN 15462 7 5/8 29.7 13611 9 7/8 1.9 1851 Production String LEAD Yield 1.98 Density 15.7 # sacks 0 # bbls 0 TAIL (CLASS G) Yield 1.2 Density 15.7 # sacks 672 # bbls 1 44 ( 0 Cu. Ft.) (806 Cu. Ft.) · . . . . . . , NK 12A Operations Summary MIRU drilling rig. Nipple up BOPs on existing wellhead and test same to 5000 psi (NK 12 was previously suspended, the open hole plugged back into surface casing, the casing freeze protected, and a valve installed on the Wellhead). Test casing to 3000 psi for 30 minutes. Pick up 9-7/8" BHA. Displace the freeze protection from the well. Drill out the cement (top previously tagged at 4672') to the casing shoe at 4764'. Kick off and build angle from the 43° at the casing shoe to 64°, and turn the wellbore from 354° to 323°. Continue drilling to 15462' md / 9585' tvd. Set 7 5/8" casing and cement same. Test casing to 4000psi for 30 minutes. Run 4-1/2" carbon tubing. Displace to diesel. Freeze protect the annulus. Release rig. 9. Run cased hole logs' cement bond log/gyro. '~" NK 12 S-,..,SPENDED 11/13/93 · POST-SUSPENSION DIAGRAM 2250' "FVD KCL 2300' MD TOC=4672' MEM 11/15/93 48 bbls class G cement 4764' 10-3/4" surface casing shoe _ BASE PLUG=5053' 554O' .. 48 bbls class G cement 10.0PPG KCL MUD RECEIVED Alaska 0il & Gas Cons. Commission Anchorage .. TOC=10990' estimated TOP KUPARUK- 11218' md TD=I 1490 Prudhoe Bay Dri:.. Niakul<, Alaska Niakuk Pad Well' NK-12a SideLrack 11,47 l-lO P..IZOH'I'AL · ul~'vrf Mk-~l~. ¥£1J. Hr.,AD I/KRTlCM. VIE! 200 rt. RE~: 1807 1200 1400 1600 leoo 2000 2~:'00 2400 2600 2000 :)000 :~00 3400 3600 :)900 4000 ,~2'00 44'00 4600 4800 5000 c~o0 5400 50~00 5B'00 GO'GO E~O0 &400 6~,00 &GOO 7000 Y/~K'rlCAL S'g~"IOW pLa~£. 5CA.L~ 200 N. / D/YI$10H TV~) R [1": VEA'T'ICA.L 3'BCTIO)~ P,4~: CRIIICAL POINT DATA l;e in / Curve a 3.00 Deg/lO0' END DF CURVE TARGET Iota Depth MD Inc AZi. TVD N/S E/W 4914 42.40' 354.39' 4245 2044 N B U 5877 60.41' 325.02' 4851 2725 N 285 14811 80.41' 323.02' 9185 8947 N 4640 .~l.~.5~'L~-80.41' 323.02' ~96~0 9573 N 5112 i Clio] f~oo 7000 7400 7600 7800 gooo 8200 e400 ~00 ~00 9000 9200 9400 ~00 9goo YKRI~C,~L S'1~"190N PLANk RECEIVED SURFACEAsP -Y:X: LOCATION RKB Ft.: torget Nome TAPGET PROPOSED BHL TVD 0610.00 MD 15512.39 VS 10852.26 N/S 9572.94 E/~ 5111.79 TVD NS [~ Grid X 9165 8947 N 4641W 716687 Created by DraFting By G~,dY- Checked Dy s9~a~70 Approved By : Lance J. Spencer : udhoe Bay g i/li n g Nic kuk Pad Weft: NK-1Po 'l'r, oveUing Cylinder' - Nc~mol PIone ReFerence ~/ell - N!K-I~ Side-tr, ack HD 0 - :]~:I2 f-t:. In-I:erval, 50 £'t. All Di~ec±ions Rel ±o T~ue Nc~±h 330o SidetPeck 55O 5OO 450 400 2OO HALLIBLI~TON I]qll I )~G SYSI[MS 116194 8:C~) OM 3O° 870° AH 240° laOo 210° WellL~gih NK-aO M~FD NKL:::(] ~EIJ nk-lOmwd Alopoh-Ol WmHw3 Atopoh-O 1 wp¼w4 Alopoh-O! WpHw nk-18mwd nkSBmwss n ;okL~O 1 o niokL~02 niOkL~O~o n;okuk03 n;okL~04 niokL~C)5 niokL$(C~ ~<07 UP2 HU NK07 WP1 ~okL~-OSwp2 I~okuk-L~wp; 180° CLOSEST P[]INTS Slot NK-L::O ~K-20 N~-IO ALAPAH-~i ALAPAH-01 ALAPAH-O! ALAPAH-O1 NK-18 I~akuk-O! Mokb&<-O) a ~okW<-02 h~okuk-02o . Nokuk-03 Nokuk-04 h$okuk-05 N~okuk-06 Nokuk-07 N~okuk-07 Nokuk-08 N~okuk-08 Nokuk-08 ]~s'l:once Dr, ec-I:ion ReC MD Re(' lVD Sep.Foc-tof 314.85 59.43 50.00 50.00 262.70 3 ~ 4,85 59.43 50.00 50.00 262,70 57.6 ~ 242.71 350.00 349.99 ~ 3,90 347,63 84.88 150.00 150.00 131.20 347,63 84.88 :] 50.00 ] 50.00 :] 20,20 347.63 84.88 :] 50.00 150.00 131,20 347,63 84,88 :]50.00 ] 50.00 :]3~ .20 ! 75.60 61. ! 0 750.00 749.72 37.20 J 042.g2 2L:~. 40 :~ 3800.00 8764.20 3,20 3 :~ 9,59 70.16 ! 50,00 ! 50.00 ' 79.60 ! ~ :3g,82 23~.c)4 135C)0,00 8616.05 3,70 g~8.07 343.71 ~55~2.72 g610.00 2.30 :~ :]83,80 345.46 15512.72 9610.00 2,80 12294,33 :]5.47 :~5512,72 g6:]O,O0 42.30 3720.47 54.73 9600,00 66g0. ! ] 19,50 4143.86 62.72 8000.00 5D:::)g.g8 lg.gO 4794,06 47.54 6500.00 5159.24 41,00 148.6! 23g.c~ 400.00 3gg,c)8 36,30 ~_ 48.61 239.98 400.00 3c)c).c~ 35.60 ! ] 8.87 240.78 40g.O0 3c)c).g8 2g.O0 ! :] 9.00 240.76 400.00 3gg,c:)8 28.50 ! :] 8.89 2::)40.78 400.00 3gq.c)8 2:::)8.50 BP EXPLORATION ARCO Alaska, Inc. January 7, 1994 David W. Johnston Alaska Oil and Gas Commission 3001 Porcupine Dr. Anchorage, Alaska 99501-3192 Dear Commissioner Johnston: BPX requests that the attached application for Permit to Drill for Niakuk 12A be approved and the existing permit cancelled. There is a change in the bottom-hole location. The well has not yet been spudded. This new bottom-hole location is consistent with the location submitted for the spacing exception. Sincerely, Mike Zangh~ PBD Superintendent BP Exploration (Alaska) Inc. Post Office Box 196612 Anchorage, Alaska 99519-6612 Telephone (907) 561-5111 Co-Operators, Prudhoe Bay Unit ARCO Alaska, Inc. Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone (907) 276-1215 '--" STATE OF ALASKA l' ~ '- .-. ~ ,¢'%~ ~ ALASKA OIL AND GAS CONSERVATION COUMISS,,J,,i ~._.,~,/% (,L....(~'¥ ~'. APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon ~ Suspend X Operation Shutdown__ Re-enter suspended weJl__ Alter casing ~ Repair well Plugging ~ Time extension Stimulate __ .,,,,/ Change approved program ~ '~Pull tubing ~ Variance__ Perforate__ Other:__ 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB) BP Exploration (Alaska) Inc. Development x KBE = 60' feet Exploratory ~ 3. Address StralJgraphic__ 7. Unit or Property name P. 0. Box 196612, Anchorage, Alaska 99519-6612 service__ Niakuk 4. Location of well at surface 8. Well number 1327' NSL, 996' WEL, SEC. 36, T12N, R15E At top of productive interval 1872'NSL, 1033' WEL, SEC. 25, T12N, R15E At effective depth 3208' NSL, 988' WEL, SEC. 36, T12N, R15E At total depth 1918' NSL, 1025' WEL, SEC. 25, T12N, R15E NK-12 9. Permit number 93-167 10. APl number 50- 029-22414 11. Field/Pool Niakuk pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Structural Conductor 80' Surface 4724' Intermediate Production Liner Perforation depth: measured None 11490 feet 9347 feet 4672 feet 4067 feet Size 20" 10-3/4" true vertical Tubing (size, grade, and measured depth) None Packers and SSSV (type and measured depth) None Plugs (measured) 11490'-10990'-270 cu ft Class "G" 5053'-4672'-270 cu ft Class "G" Junk (measured) Cemented Measured depth True vertical depth 280 cuft Arcticset 80' 3092 cuft "E" & 4764' 435 cu ft Class "G" 80' 4136' RECEIVED NOV 1 5 199~ -,~s~ u, & Gas Cons. Commission Anchorage 13. Attachments Description summary of proposal x Detailed operations program __ BOP sketch 14. Estimated date for commencing operation 11/13/93 16. If proposal was verbally approved Name of approver R. Douglass ~ ~/~3/93 Date approved 15. Status of well classification as: Oil Gas Suspended x Service 17. I he, reby certify that the foregoing is true and correct to the best of my knowledge. L Signed - Title Drilling Engineer Supervisor -C/ // FOR COMMISSION USE ONLY Conditions of approval: No{~fy Commission so representative may witness Plug integrity BOP Test ~ Location clearance ~ Mechanical Integrity Test~ Subsequent form required 10- ~¢)~ Original Signed By Approved by order of the Commission D~3Vi¢/W. Johnstmj Form 10-403 Rev 06/15/88 I Approval ? ,.~ - ~,/. ,,,q,,. No. Approved Copy Returned Commissioner Date SUBMIT IN TRIPLICATE NK 12 SUSPENDED 11/13/93 POST-SUSPENSION DIAGRAM 2250' TVD KCL 2300' MD TOC=4672' MEM 11/15/93 48 bbls class G cement 4764' 10-3/4" surface casing shoe BASE PLUG=5053' 554O' 48 bbls class G cement 10.0PPG KCL MUD RECEIVED Alas~ 0il & Gas Cons. C81amission Anchorage TOC=10990' estimated TOP KUPARUK - 11218' md TD=I 149O S T.4 TE OF ALASKA ALASKA OIL AND GAS CONS~VA TION COMMISSION Plug And Abandonment RepoR Ol~rat~r: la,ap.: No.: Niekuk BP EXl~O,ration Well Name: Tomrm/Johnaorl ,, .. ~TCl I~1o.: t~.~j Welt No.; . NK-12~.. 8eD, 'T-R .... ........... s 36~ TI2N~ R i5E IVleri~an; Total Depth: 114~ Eleva~on: ... 3~,8.. MudWt.; , A~ · CASINg D ~A. · . Date: , NK-12 Umi~.. ,, 10, ,ppg. Ddve Pipe: Conductor: Intermediate: O.D." 8et {~: : ~ With Penetr~on O.D," 8~t@: , ,_80 ,fo. Surface: 103~ O.D." 8et~: 4763 ft. Q.D." Set{~: .... ft, Prodctn: --------- O,D," Set~: ,, ~-- P~,U_GGING DATA: I. Open Hole Plugs: 2, Open Hole lsol~on Plugs: i i ....... iiiii ii T,0P. ~.c_e_m_ _nt_p!u_g ~t =hoe ta~ed.at ~e72', shoe depth ,at, ,47~3. ............ 3. Perforation Plug~: 4, Annulua Plugs: 5. Ca~ing Stub Plugs: ............. ....... 6. Surface Plug: ._ ..... Crag Removal: ., " Feet .I , I If- " Casing ~Ut Fe~t c_ _.n..._u ~~ DC tZ~ , "-----'-'" Cas4ng Cut ~t Feet REMARKS: Tj~.~_.i~._ iPlU~! with drilipipe met.tS.,000 # down, Plug.appeered~e~_.!!~_..__~.:....._ Dl~:rlbutk~: Welt FL~ DNPJI:X:X3 Rpt File Ft.ooo ~. ~ RECEIVED NOV 1 5 1993 __ Alaska Oil & Gas Cons. Commission ~chorage STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION ~¢"' \ ~', WELL COMPLETION OR RECOMP LETION REPORT LOG 1; Status of Well Classification of Service Well OIL [] GAS [] ~ EZ ABAN[:X:)NED [] SERVICE [] 2. Name of Operalor 7. Permil Number BP Exploration 93-167 3. Address 8. APl Number P. 0. Box 196612, Anchorage, Alaska 99519-6612 50- 029-22414 9. unit or Lease Name 4. Location of well at surface 1327' NSI_, 996' WEL, SEC. 36, T12N, R15E ' LC;CATiOnS Niakuk At Top ProdUcing Interval ' VLr;f~F[[D i 10. Well Number i NK-12 1872' NSL, 1033' WEL, SEC. 25, T12N, R15E [ 11. Field and Pool At Total Depth ~ ~ Niakuk Pool 1918'NSL, 1025' WE/_, SEC. 25, T12N, R15E 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Sedal No. KBE = 60' I ADL 34630 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offshore 116. No. of Completions 10/31/93 11/12/93 11/13/93I N/A feet MSL I Zero 17. TotaJ Depth (MD+TVD) 18. Plug Back Dec)th (MD+TVDi 19. Directional Survey ~::'0. Depth where SSSV set ~21. Thickness of PermaJrost 11490' MD/9347' TVD 4672' MD/4067' TVD YES E] ~ []! None feet MD I 1800' (Approx.) 22. Type Electric or Other Logs Run CHT/GR/FMT//MWD 23. " CASING, LINER AND CEMENTING RECORD SE'FI'I,,~ DEPTH MD CASING SIZE WT. PER FT. GRADE TOP Bo'ri'oM HOLE SIZE CEMENTIgG RECORD AMOUNT PULLED 20" 944/ H-40 Surface 80' 30" 280 cuft Arcticset (Approx) 10-3/4" 45.5// NTSOS 40' 4764' 13-1/2" 435 cuft C/ass "G" 24. Pedorations open to Production (MD+TVD of Top and Bottom and 25. TUBi',iGRECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) None None None 26. ACID, FRACTURE, CEMENT SQUi=i=71=. ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11490'- 10990' 270 cuft Class "G" 5053'-4672' 270 cuft Class "G" ., 27. PRODL~TION TEST Date First Production JMethod of Operation (Flowing, gas lift, etc.) Not on production I N/A Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKESIZE IGAS-OIL RATIO TEST PERIOD ~ I Flow Tubing Casing Pressure DALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. !24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparenl dips, and presence of oil, gas or water. Submit core chips. R[C[IV£D DEC 3 0 1995 /kl~sk~ 0il 8, 6as Cons. 6omrnission Anchorage Submit in duplicate Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE '~-" 30. GEOLCCCC MARKERS I IATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. HRZ 10994' 8886' Kuparuk 11214' 9100' Kingak 11254' 9139' . 31. MST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge ,. INSTRUCTIONS General: This form is designed, for. submitting a complete and correct well completion report and Icg 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". R E C ElY E D Form 10-407 DEC ,30 199,3 O~l & Gas Cons. Commission Anchorage Notice of Public Hearing STATE OF ALASKA Alaska Oil and Gas Conservation Commission Re: The application of BP Exploration (Alaska) Inc. for exception to 20 AAC 25.055 to allow drilling the Niakuk 12A development oil well. BP Exploration (Alaska) Inc. by letter dated December23, 1993 has requested, an exception to the provisions of 20 AAC 25.055(a)(3) for the drilling of a development oil well to an undefined oil pool in the Prudhoe Bay Unit. The exception would allow BP to drill the Niakuk 12A development oil well to a location that is 1) closer than 500 feet from a quarter section line; and 2) is the second well drilled to the pool within a governmental quarter section. The well will be drilled as a deviated hole from a surface location 1327' from the south line and 996' from the east line (FEL) of Section 36, T12N, R15E, Umiat Meridian (UM) to a bottom-hole location 295' from the south line and 790' FEL of Section 23, T12N, R15E, UM. A person who may be harmed if the requested order is issued may file a written protest prior to 4:00 PM January 10, 1994 with the Alaska Oil and Gas Conservation Commission, 3001 Porcupine Drive, Anchorage, Alaska 99501, and request a hearing on the matter. If the protest is timely filed and raises a substantial and material issue crucial to the Commission's determination, a hearing on the matter will be held at the above address at 9:00 AM on January 24, 1994 in conformance with 20 AAC 25.540. If a hearing is to be held, interested parties may confirm this by calling the Commission office, (907) 279-1433, after January 10, 1994. If no protest is filed, the Commission will consider the issuance of the order without a hearing. Russell A. Douglass, Commissioner Alaska Oil and Gas Conservation Commission Published December 24, 1993 ** CHECK LIST FOR NEW WELL PERMITS ** ITEM APPROVE DATE ( 1 ) Fee ,/.~_ //'~',,.7/~-"z/ (2) Loc ~,.~ 4'zC).,,~ '/":? "C2 Lhru 8] ' -" (3) Admin (4) Casg (5) BOPE [14 thru 2 ] ' NO REMARKS ~ Z~ '~,,i~ '~ [23 thru 2~] "' YES ,~, 1. Is permit fee attached ............................................... 2. Is well to be located in a defined pool .............................. 3. Is well located proper distance from property i ine ................... .~i 4. Is well located proper distance from other wells ..................... /(% 5. Is sufficient undo. dicated acreage available in this pool ............. 6. Is well to be deviated $ is wellbore plat included ................... ..~ 7. Is operator the only affected party .................................. /L 8. Can permit be approved before 15-day wait ............................ .~. Does operator have a bond in force ................................... Is a conservation order needed ................................. ...... Is administrative approval needed .................................... Is lease ngrnber appropriate .......................................... Does well have a unique name & nLrnber ................................ Is conductor string provided ......................................... Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water .................. Is enough cement used to circulate on conductor & surface ............ Will cement tie in surface & intermediate or production strings ...... Will cement cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension, and burst. Is well to be kicked off from an existing wellbore ................... e 10. 11. 12. 13. 14. 15. 16. 17. 18. 19 20. 21. 22. 23. 24. 25. 26. 27. 28. Is old wellbore abandonment procedure included on 10-403 ............. Is adequate wellbore separation proposed ............................. Is a diverter system required ........................................ Is drilling fluid program schematic & list of equipment adequate ..... Are necessary diagrams & descriptions of diverter & BOPE attached .... Does BOPE have sufficient pressure rating -- test to ~~ ps ig ..... __~ Does choke manifold comply w/API RP-53 (May 84) ...................... Is presence of H2S gas probable ...................................... ,/ (6) Other .4T/'C_ ..?',.',,~/;?;~, [~29 thru 31] (7) Contact A¢2k. 4' ,/.,',,%./::"-_: ?,'_ [32] (8) Addl 29. 30. 31. 32. 33. geo 1 ogy' DWJ RPQ~/ rev 6/93 jo/6.011 FOR EXPLORATORY & STRATIGRAPHIC WELLS: Are data presented on potential overpressure zones ................... Are seismic analysis data presented on shallow gas zones ............. If offshore loc, are survey results of seabed conditions presented... Name and phone nLrnber of contact to supply weekly progress data ...... Additional requirements ............................................. INITIAL GEOL I UNIT ON/OFF POOL CLASS STATUS AREA ~ SHORE /-o,, /1 :o 0,-2 , Additional remarks' MERIDIAN' UM ~X SM WELL TYPE' Exp~_~fCPF¢~ Inj Redril] Rev 0 ~'Z ~0 Well History File APPENDIX Information of detailed nature that is not particularly 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 effort has been made to chronologically organize this category of information. RECEIVED APR 1 3 1994 Oil & Gas Cons. Commission Anchorage PAGE: 50-029-2241, a-0i ¢. . i2:,, ']27 PAGe: FILE PAGE: ,. .' ~ ;. .. , ~ ~ , .. -~9~.2~,'"., - :,V~,'~.:;:"~[' ..... -999.25n RLjP.'~'nD:, . -99c.,:'~bO FCN:U. :.;~L,:~. -999. 250. PET. ~z,~,;D -999.250 -999.250 22.145 -999.250 4.318 4.766 40.071 1.501 v r,'P. ': ' :) -99 C;. '2 :~ 3 VP~. ~ ,'! ,.'., -999.?_50 ROP.Y.~9 -999.250 · i:j-' !' ';i; ,'-qg~.'):~" FC~',.,!..:,,:i, ~ 76t FaT '¢~g -999.250 o. each, separat, e files. 155.0 0 C 74 o 0 74.0 ";..~ 9 %. :.'? b .:':, ,r :.: p.;. i.., ',: 1 - O 9 ':'~. 250 A T P., r, ¢, ~ r,f.,t, i.. C.,"!,. .aqr, 2bO T~,.