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HomeMy WebLinkAbout198-114XHVZE Pages NOT Scanned in this Well History File This page identifies those items that were not scanned during the initial scanning project. They are available in the original file and viewable by direct inspection. / ~'~ -/'/~' File Number of Well History File PAGES TO DELETE RESCAN Complete [] Color items - Pages: Grayscale, halftones, pictures, graphs, charts- Pages: Poor Quality Original- Pages: [] Other- Pages: DIGITAL DATA [] Diskettes, No. [] Other, No/Type OVERSIZED [] Logs of various kinds [] Other COMMENTS: Scanned by: Beverly Mildred Dareth N~ Lowell [] TO RE-SCAN Notes: Re-Scanned by: Bevedy Mildred Damtha Nathan Lowell Date: ~si . STATE OF ALASKA I ALAS~IL AND GAS CONSERVATION COM SSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG . 1a. Well Status: 0 Oil 0 Gas 0 Plugged ~ Abandoned 0 Suspended 0 WAG 20MC25.105 20MC25.110 o GINJ 0 WINJ 0 WDSPL No. of Completions 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location of Well (Governmental Section): Surface: 1383' FSL, 900' FEL, SEC. 36, T12N, R15E, UM Top of Productive Horizon: 1938' FSL, 4441' FEL, SEC. 25, T12N, R15E, UM Total Depth: 2094' FSL, 4552' FEL, SEC. 25, T12N, R15E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: x- 721661 y- 5979921 Zone- ASP4 TPI: x- 717948 y- 5985650 Zone- ASP4 Total Depth: x- 717833 y- 5985803 Zone- ASP4 18. Directional Survey 0 Yes ~ No Zero Other 5. Date Comp., Susp., or Aband. 3/23/2006 6. Date Spudded 06/27/1998 7. Date ToO. Reached 07/10/1998 8. KB Elevation (ft): 59.4' 9. Plug Back Depth (MD+ TVD) 12251 + 9576 10. Total Depth (MD+TVD) 12365 + 9684 11. Depth where SSSV set NIA MD 19. Water depth, if offshore NIA MSL 22. , , ',SIZE' ' 20" 9-5/8" 7" 21. Logs Run: US IT I Gyro, LID MWD, LDC, CDL-CNL-GR, GR I JB I GR I CCL l ASING, LINER AND CEMENTING KECORD __ _ _ _ I' _ <:>1: I vETTING UEPTH TVD HOLE, , .. "''' r I . T OF ItsOTTOM I OP tsoTTOM , SIZE 42' 115' 42' 115' 30" 40' 6196' 40' 5102' 12-1/4" 38' 12351' 38' 9671' 8-1/2" 94# 47# 29# H-40 L-80 L-80 23. Perforations oRen to Production (MD + TVD of Top and Bottom Interval, Size and Number; if none, state "none"): None MD TVD MD ~C~i\NNED 1 b. Well Class: ~ Development 0 Exploratory o Stratigraphic 0 Service 12. Permit to Drill Number 198-114 306-081 13. API Number 50- 029-22893-00-00 14. Well Name and Number: PBU NK-61 15. Field I Pool(s): Prudhoe Bay Field I Niakuk Pool Ft Ft 16. Property Designation: ADL 034630 17. Land Use Permit: PRODUCTION TEST Method of Operation (Flowing, Gas Lift, etc.): NIA OIL-BBL GAs-McF WATER-BBL OIL-BBL None 20. Thickness of Permafrost 1800' (Approx.) . ~' , " , 260 sx Arctic Sett~pprox.) 2410 sx PF 'E', 410 sx Class 'G' 275 sx Class 'G' 124". ' ','"T SIZE 3-1/2", 9.3#, L-80 TVD I , '.. DEPTH SET (MD) PACKER SET (MD) 11621' 11574' " 125.' - , DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11605' P&A & Kick Off Plug wI 29 Bbls of Cement GAs-McF W A TER-BBL 26. Date First Production: Not on Production Date of Test Hours Tested PRODUCTION FOR TEST PERIOD .. Flow Tubing Casing Pressure CALCULATED .. Press. 24-HoUR RATE 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". CHOKE SIZE GAS-OIL RATIO OIL GRAVITy-API (CORR) R8DMS 8Ft MAY .3 I) 7U06 Form 10-407 Revised 12/2003 0 RIG I f\fJ't't~ED ON REVERSE SIDE & 2&. GEOLOGIC MARKE 29. FORMATION TESTS NAME MD TVD Include and briefly summarize test results. List intervals tested, and attach detailed supporting data as necessary. If no tests were conducted, state "None". HRZ 11522' 8898' None Kuparuk 11803' 9156' Kingak 12064' 9400' 30. List of Attachments: Summary of Pre-Rig Work and Daily Drilling Reports 31. I ~erebY certify that the f0r;90i:9 is true and correct to the best of my knowledge. Signed Terrie Hubble 1"1/7 II Title Technical Assistant PBU NK-61 Well Number 198-114 306-081 Permit No. I Approval No. 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. Prepared By Name/Number: Drilling Engineer: Terrie Hubble, 564-4628 Sean McLaughlin, 564-4387 ITEM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. ITEM 4b: TPI (Top of Producing Interval). ITEM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. ITEM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). ITEM 20: True vertical thickness. ITEM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). ITEM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITEM 27: If no cores taken, indicate "None". ITEM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only e e NK-61A Prudhoe Bay Unit 50-029-22893-01 206-035 Accept: Spud: Release: Ri: PRE-RIG WORK 02125/06 RIH W/2.25" CENT I DUAL PETREDAT GAUGES. TAG TD AT 11,900' SLM, 11' OF FILL. 03/06/06 DRIFT WI 2.70 CENT AND S-BAILER TO 11,944' (CORRECTED DEPTH), 11 FEET OF RATHOLE. NO SAMPLE RECOVERED. CALIPER TUBING FROM 11,910' SLM TO SURFACE, GOOD DATA EXCEPT FOR 271' SECTION FROM 8549' - 8820' SLM. 03/07/06 PULLED LGLV'S AND SET DGLV'S AT STA # 1 - 11,502', STA # 3 - 10,100', STA # 4 - 7974', AND STA # 5- 3854' SLM. PULLED EMPTY CS FROM 11, 571' SLM. 03/23/06 BHA FOR CEMENT JOB. RIH WI 2.3" BDN TO TD OF 11,932' CTMD, CORRECT TO TD. FLAG 10' OFF BTM. CONFIRM IA IS FLUID PACKED. KILL WELL WITH 260 BBLS OF 1% KCL, 50 BBLS DIESEL. PUMP KCL ACROSS PERFS. PUMP 29 BBLS 17# CEMENT FROM 11934'. PARK AT 11750', GET BUMP. LAY IN REMAINING CEMENT. BUMP PLUG TO +500 PSI AT SAFETY. HOLD 30 MIN'S. BUMP TO +850 PSI, HOLD 5 MIN'S, GOOD. CONTAMINATE/CLEANOUTTO 11605'. MAKE REPEAT JETTING PASS UP. 03/24/06 JET OUT CONTAMINATED CEMENT UP TO 9600', REPEAT JET TO TARGET DEPTH OF 11605'. CHASE OUT W/ XS KCL, MAKING SLOW REPEATS ACROSS ALL JEWELRY/GLM'S. FREEZE PROTECT FROM 2500' WI WATERlMETH. RE-PT PLUG TO 2000 PSI (+1000) AT SURFACE FOR 30 MIN'S. RDMO. , BP EXPLORATION Page 1 .- Operations Summary Report Legal Well Name: NK-61 Common Well Name: NK-61 Spud Date: 6/28/1998 Event Name: REENTER+COMPLETE Start: 3/28/2006 End: 4/14/2006 Contractor Name: NORDIC CALISTA Rig Release: 4/14/2006 Rig Name: NORDIC 1 Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 3/28/2006 13:00 - 13:30 0.50 MOB P PRE Held pre-rig move safety meeting with Security, Nordic and SWS personnel. Reviewed rig move plan, hazards and mitigation. 13:30 - 00:00 10.50 MOB P PRE Move rig to Oxbow road and to Deadhorse. No problems. 3/29/2006 00:00 - 01 :00 1.00 MOB P PRE Moved rig to SWS shop for reel swap. 01 :00 - 04:00 3.00 MOB P PRE Swap reels with crane. Install 2" reel with 14880' of coil. No problems. 04:00 - 17:00 13.00 MOB P PRE Move rig from Deadhorse to Niakuk. Good rig move, no problems. 17:00 - 20:30 3.50 MOB N WAIT PRE Rig at Niakuk. Wait on pad prep. Weld on 2" CT connector. Rig up 2" reel hardline. 20:30 - 21 :00 0.50 MOB P PRE SAFETY MEETING. Held safety meeting before backing rig over well. Reviewed procedure, hazards and mitigation for backing rig over well. Very tight well spacing. Only 6" of clearance on one side. 21 :00 - 21 :30 0.50 MOB P PRE Back rig over well with no problems. 21 :30 - 23:00 1.50 RIGU P PRE ACCEPT RIG AT 2130 HRS, 03/29/2006. General rig up. Spot trailers, tanks 23:00 - 00:00 1.00 BOPSUF P PRE NIU BOPE. Change out rams for 2" coil. 3/30/2006 00:00 - 04:00 4.00 BOPSUF P PRE NIU BOPE. CIO rams for 2" coil. 04:00 - 18:30 14.50 BOPSUF P PRE Pressure I function test BOPE. AOGCC inspecter Chuck Scheve & BP rep Bob Laule witnessed test. Repaired 2 choke manifold valves. Repaired blind rams bonnet. Filled pits with 290 bbls of 2# Biozan 18:30 - 21 :00 2.50 STWHIP P WEXIT Fill coil with Biozan. Press test inner reel valve. Pump dart. Dart on seat at 40.1 bbls. 21:00 - 21:15 0.25 STWHIP P WEXIT SAFETY MEETING. Review procedure, hazards and mitigation for make up of WF milling BHA. 21:15 - 22:45 1.50 STWHIP P WEXIT MIU Pilot milling BHA #1 with 2.74" diamond parabolic mill, 1.75 deg WF motor, Sperry MWD and orienter and WF MHA. OAL = 46.40'. Test orienter at surface, 3 of 3 clicks. 22:45 - 00:00 1.25 STWHIP P WEXIT RIH with 2.74" Pilot hole milling BHA. Take returns to cuttings tank. 3/31/2006 00:00 - 01 :45 1.75 STWHIP P WEXIT RIH with 2.74" pilot mill on a 1.75 deg WF motor. Tag cement at 11605'. at bottom of tailpipe. 33K up wt. 11K down wt. 01 :45 - 04:00 2.25 STWHIP P WEXIT Mill Pilot hole in cement. 1.6 bpm, 3320 psi, 20 fph, 4K web, 160R, hard cement. Milled to 11,645'. 04:00 - 06:00 2.00 STWHIP P WEXIT Mill Pilot hole in cement. 1.6 bpm, 3200 psi, 20 fph, 4K wob, 160R. hard cement. Milled to 11,670'. Tied-in with GR while milling ahead. Added 2' to CTD. 06:00 - 12:00 6.00 STWHIP P WEXIT Mill Pilot hole in cement. 1.5 bpm, 3000 psi, 20 fph, 4K wob, 170R, hard cement. Drill to 11790 12:00 - 13:00 1.00 STWHIP P WEXIT Wiper tie-in Correction +1.5'. 13:00 - 13:30 0.50 STWHIP P WEXIT Mill Pilot hole in cement. 1.6 bpm, 3280 psi, 20 fph, 4K web, 175R, hard cement. Drill to 11798 e PrInted: 4/17/2006 11 :01 :40 AM · e BP EXPLORATION Operations Summary Report Page 2.. Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: NK-61 NK-61 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 3/28/2006 Rig Release: 4/14/2006 Rig Number: Spud Date: 6/28/1998 End: 4/14/2006 Date From - To Hours Task Code NPT Phase Description of Operations 3/31/2006 13:30 - 13:45 0.25 STWHIP P WEXIT Orient to 10L 13:45 - 14:30 0.75 STWHIP P WEXIT Mill cement ramp[. 1.7 bpm, 3300 psi, 11 fph, 4K wob, 10 L, hard cement. Drill to 11806 End of ramp. 14:30 - 17:00 2.50 STWHIP P WEXIT POH. 17:00 - 18:00 1.00 STWHIP P WEXIT LD cement mill and PIU window mill with brass guide ring and 2.5 deg fixed bend WF motor. 18:00 - 20:50 2.83 STWHIP P WEXIT RIH with BHA #2 window milling BHA. Set down on many collars while RIH. Went thru TRSSSV OK. Circ at 0.2 bpm to get past collars. RIH to 11780'. 20:50 - 21 :20 0.50 STWHIP P WEXIT Orient TF to 20L. RIH and tag bottom 3 times at 11816'. Pick up 4 ft off bottom. Start pump at 1.6 bpm. Ease down with 6R TF. 1.5 bpm, 2800 psi, 7K down wt off bottom. First motor work at 11814'. Correct depth to 11806'. Flagged coil at 11806'. Pick up 1 ft as per program. 21 :20 - 00:00 2.67 STWHIP P WEXIT Time mill window as per schedule. 1.6 bpm, 3000 psi, 12R, Mill for 3 hours to get back to 11806' as per schedule. 4/1/2006 00:00 - 02:00 2.00 STWHIP P WEXIT Time Milling 2.74" window. 1.6 bpm, 3070 psi, 12R, No woe. mill as per time schedule. Milled to 11,807'. 02:00 - 04:00 2.00 STWHIP P WEXIT Time Milling 2.74" window. 1.6 bpm, 3070 psi, 12R, 1.5k wob, Mill as per time schedule. Milled to 11,808'. Getting good metal on ditch magnets. 04:00 - 06:00 2.00 STWHIP P WEXIT Time Milling 2.74" window. 1.6 bpm, 3300 psi, 11 L, 4-5k wob, Milled to 11,810'. Stacking more weight, but milling off OK. 06:00-11:15 5.25 STWHIP P WEXIT Milling window at 1 FPH. 1.6 bpm, 3020 psi, 6R, 3.5K WOB. Continue milling to 11811 stacking no MW. PU found bottom @ 11809. Mill to 11810 seen motor work. Mill open hole to 11820. Make additional pass thru window. Flag pipe EOP 11600' 11:15 -13:00 1.75 STWHIP P WEXIT POH. 13:00 - 14:15 1.25 STWHIP P WEXIT LD window mill and PU window dressing mill. Mill 2.73" Go 2.72". NOGO. Window dressing mill is 2.74" Go 2.73" NOGO. 14:15 - 16:20 2.08 STWHIP P WEXIT RIH with 1.75 degree motor and Weatherford Diamond Crayola Mill. 16:20 - 17:00 0.67 STWHIP P WEXIT Tie - in to EOP flag at 11600. Correct +10'.Orient to 13R 17:00 - 19:40 2.67 STWHIP P WEXIT RIH wo pump set down 11802. RIH w pump 1.7bpm 3240 psi. Ream at 16 ftIhr, Stalling in window at 11,806. Time mill at 11802-11807'. Ream down and tag bottom on depth at 11820'. 19:40 - 22:30 2.83 STWHIP P WEXIT Backream up thru window at 7R TF. Ream down at 7R TF. Orient to 90R and backream up thru window. Stop pump and RIH clean to bottom. Backream up again while swapping well to New 9 PPG FloPro. 22:30 - 00:00 1.50 STWHIP P WEXIT POH with reaming BHA. 4/2/2006 00:00 - 00:45 0.75 STWHIP P WEXIT POH with window reaming BHA. 00:45 - 01:15 0.50 STWHIP P WEXIT Layout reaming BHA. Taper mill gauged at 2.74Go, 2.73 no-go. 01:15 - 01:30 0.25 DRILL P PROD1 SAFETY MEETING. Held pre-spud meeting with all personnel. Reviewed well plan, special considerations for this well, hazards and mitigation. 01 :30 - 02:30 1.00 DRILL P PROD1 MlU MWD Build BHA #4 with HCC 2.7 x 3.0 Bi-center bit #4 and 2.6 deg BHI Xtreme motor and Sperry MWD with BOT Printed: 4/17/2006 11 :01:40 AM , .. Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Date 4/2/2006 4/3/2006 e e Page 3 ,.., BP EXPLORATION Operations Summary Report NK-61 NK-61 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 From - To Hours Task Code NPT Phase 01 :30 - 02:30 02:30 - 05:30 05:30 - 06:00 06:00 - 06:30 06:30 - 07:30 18:25 - 18:50 18:50 - 20:30 20:30 - 21 :30 21 :30 - 23:15 23:15 - 23:50 23:50 - 00:00 00:00 - 02:00 02:00 - 02:25 02:25 - 02:45 02:45 - 04:00 04:00 - 06:00 06:00 - 09:00 09:00 - 11 :25 11 :25 - 12:25 18:30 - 19:50 1.00 DRILL P 3.00 DRILL P 0.50 DRILL P 0.50 DRILL P 1.00 DRILL P 2.00 DRILL N 1.00 DRILL N 2.25 DRILL N 0.25 DRILL P 1.75 DRILL 0.58 DRILL 0.17 DRILL P 2.00 DRILL P 0.42 DRILL P 0.33 DRILL P 1.25 DRILL P 2.00 DRILL 1.58 DRILL P 2.00 DRILL P 0.50 DRILL P 2.00 DRILL P 1.33 DRILL P PROD1 PROD1 PROD1 PROD1 PROD1 DFAL PROD1 DFAL PROD1 DFAL PROD1 PROD 1 P P P P PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 PROD1 Start: 3/28/2006 Rig Release: 4/14/2006 Rig Number: Spud Date: 6/28/1998 End: 4/14/2006 Description of Operations MHA. OAL = 59.92'. RIH with Build BHA #4. SHT tools OK. RIH clean to 11760'. Orient TF to highside. RIH clean thru window. Tag bottom at 11826'. Correct depth to 11820'. Drilling Build section in Kuparuk sand. 1. bpm, TF. Sperry pulses failed, drill ahead to see if they start again. Drilled 3' pulser working. Orient to compensate for 80 d rees of reactive torque. PU to 11766. Pulser wor1<ing agai . RIH .25 bpm. RIH to 11820 1.8 bpm MWD failed. POH for MWD failure. Change out MWP probe. Bit in new conditio . RIH Shallow hole test at 800' OK. Con tin to RIH. 11780. Orient 24R. RIH .3 bpm @ 1300 psi. gat 11832 corrected 11823. Drill build section thru the Kupa 3300psi, 5200#WOB. PIU and orient TF to 70L. Drill build section, 1.5 pm, 3000 psi, 27L, 20 fph, 65 deg incl, Drilled to 1192 . Drill build sectio 1.55 bpm, 3000 psi, 27L, 30 fph, 80 deg incl, Drilled to 1940'. POH for la al BHA. Flag Coil at 11760' EOP. POH. Adjust tor to 0.8 deg bend. CIO Bit, Bit#5 had 2 broken cutte and 2 plugged jets. M HCC BC Bit #6. Check motor and CTC. IH with MWD Lateral BHA #6 with 0.8 deg motor and Bit #6. RIH with Lateral BHA with 0.8 deg motor. Corrected to flag at 11700' EOP. Added 15 ft. RIH clean thru window and clean to bottom. Tag bottom at 11942' and corrected depth to 11940'. 'ent TF to 30L. Dri . g lateral in Kuparuk sand, 1.6 bpm, 3100 psi, 35L, 35 fph, 8 deg incl, Drilled to 11980'. Drilling la ral in Kuparuk sand, 1.6 bpm, 3100 psi, 35L, 50 fph, 89 deg' cI, Drilled to 12,070'. Drilling lateral i uparuk sand, 1.6 bpm, 3100 psi, 75L, 50 fph, 91 deg incl, drill 12161'. Drilling lateral in Kup k sand, 1.6 bpm, 3200 psi, 55L, 55 fph, 91 deg incl, drilled to 12 0'. Wiper trip back to bit just b w the window 11815'. Tie in about 20' of GR to shale cha teristics at window. Correct +4'. Run back to bottom at 1225 ' Drilling lateral in Kuparuk sand, 1.7 m, 3300 psi, 117R, 60 fph, 93 degree incl, drilled to 12330'. Drilling lateral in Kuparuk sand, 1.7pbm, fph, 91 degree incl, drilled to 12401'. Wiper trip back to window after 150' of drilling. to resume drilling lateral. Drilling lateral in Kuparuk sand, 1.6 bpm, 3100 psi, 91 deg Incl, Drilled to 12550'. Wiper trip to window. Clean hole. RIH clean to bottom. Printed: 4/1712006 11 :01:40 AM e e FRANK H. MURKOWSKI, GOVERNOR AIµ\.SKA. OIL AND GAS CONSERVATION COMMISSION Sean McLaughlin CT Drilling Engineer BP Exploration (Alaska) Inc. PO Box 196612 Anchorage, AK 99519-6612 333 W. 7'" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 t~~J 1I't Re: Prudhoe Bay Field, PBU NK-61 Sundry Number: 306-081 Dear Mr. McLaughlin: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659-3607 (pager). As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for rehearing. A request for rehearing is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. A person may not appeal a Commission decision to Superior Court unless rehearing has been requested. Sincerely, aß-¡jJ~~ Cathy P. Foerster Commissioner DATED this9~y of March, 2006 Encl. ~f0 e STATE OF ALASKA )/1/0(, __'~/'ð~1 ALASKA OIL AND GAS CONSERVATION COMMISSION MAR 0 7 2006 APPLICATION FOR SUNDRY APPROV&'aoil&G C . . 20 AAC 25.280 as oos. CommIssIon Anchorage 'vJó'r- 1t'lwoC, RECEIVED 1. Type of Request: IBI Abandon o Suspend o Operation Shutdown o Perforate o Other -~-~~---~------------- o Alter Casing o Repair Well o Plug Perforations o Stimulate o Re-Enter Suspended Well o Change Approved Program o Pull Tubing o Perforate New Pool o Waiver o Time Extension 2. Operator Name: 4. Current Well CI~S: 5. Permit To Drill Number BP Exploration (Alaska) Inc. a Development D Exploratory 198-114 /' 3. Address: D Stratigraphic D Service 6. API Number: / P.O. Box 196612, Anchorage, Alaska 99519-6612 50- 029-22893-00-00 7. KB Elevation (ft): 59.4' 9. Well Name and Number: / PBU NK-61 8. Property Designation: 10. Field / Pool(s): ADL 034630 Prudhoe Bay Field / Niakuk Pool 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): I Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 12365 9684 12251 / 9576 None None Casing Length Size MD / TVD Burst Collapse ~tnJchm:¡ 73' 20" 115' 115' 1530 520 6156' 9-5/8" 6196' 5102' 6870 4760 P 12313' 7" 12351' 9671' 8160 7020 Liner Perforation Depth MD (ft): I Perforation Depth TVD (ft): I Tubing Size: ./ Tubing Grade: I Tubing MD (ft): 11803' - 11933' / 9156' - 9277' 3-1/2", 9.3# L-80 11621 ' {'" Packers and SSSV Type: 7-5/8" x 3-1/2" Baker 'S-3' packer Packers and SSSV MD (ft): 11574' /' 12. Attachments: 13. Well Class after proposed work: a Description Summary of Proposal D BOP Sketch D Exploratory a Development D Service D Detailed Operations Program 14. Estimated Date for Marc~)006 15. Well Status after proposed work: / Commencing Operations: DOil DGas D Plugged a Abandoned 16. Verbal Approval: Dàm: DWAG DGINJ DWINJ D WDSPL Commission Representative: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Sean McLaughlin, 564-4387 Printed Namç" Sean McLswghlin Title GT Drilling Engineer Signature .IV /VL {( ~ Date 3/7/06 Prepared By Name/Number: Phone 564-4387 Terrie Hubble, 564-4628 Commission Use Only . I Conditions of approval: Notify Commission so that a representative may witness I Sundry Number: ~o...o ~ , D Plug Integrity D BOP Test D Mechanical Integrity Test D Location Clearance Other: I+r) p Y'O IJ tJ kJr ,AA- I 0 - 4-0 l ~~y\.(d ~r ý(' ~ iv(;c.-(Á'- ~ll ¡J /L - lo lit- . Subsequent Form Required: lo- 401. RBDMs 8Ft MAR J () 2D06 Approved By: f1If!w, /4 AÁ APPROVED BY COMMISSIONER THE COMMISSION Date -i-'i-EJ,6 Form 10-403 RelÏisea 07/2'05 '\ Submit In Duplicate ORIGINAL~ e e To: Winton Aubert Petroleum Engineer Alaska Oil & Gas Conservation Commission bp From: Sean McLaughlin CTD Engineer Date: March 3, 2006 Re: NK-61 Sundry Approval Sundry approval is requested for well NK-61. NK-61 was drilled as producer in 7/98. It is completed with 3-112" tubing within 7" production casing. The well was initially perforated (37') in the 5FS and few months later 25' of perfs were added in the upper 4MFS zones. NK-61 has been on weekly brush and flush treatments since 1999. Reservoir pressure has dropped to 3365 psi as of 7/04, indicating little injection support from NK-IO. Stimulation with Microbial additives was tried in 8/00 with no apparent production benefit. In 7/04 a hydrate/paraffin plug was found and the well has been shut in since then waiting on coil to thaw the tubing. Current status: Shut in gas-lift oil producer. NK-61 has been selected for a through tubing sidetrack with the SLB/Nordic 1 Coiled Tubing Drilling rig on or around March 23. 2006. The sidetrack, /' NK-61A, will exit the existing 7" production casing and kick off and land in zone 4BB. The existing perforations will be isolated by a cement squeeze. The following describes work planned and is submitted as an attachment to Form 10-403. A schematic diagram of the proposed sidetrack is attached for reference. Pre-Rig Work: 1. 0 AC-LDS; AC-PPPOT -IC, T 2. C Clean out Done 3. S Set DGLV 4. S Caliper the tubing and the l~ -ì 5. 0 MIT-IA,andOA. ~ /' 6. C . Pump cement for abandonment and cement ramp exi -. 17 pg cmt- 26 bbl (11 bbl casing volume 11620' -11,900', 10 behind pipe, 5 excess) ~7. 0 Bleed gas lift and production flowlines down to zero and blind flange 8. 0 Remove wellhouse, level pad The pre CTD work is slated to begin on March 12,2006. TVv: S lO - 4 0 ~ r>JJrY\?-v&\...l. Rig Work: -or 1. MIRV and test BOPE to 250 psi low and 4000 psi high. 2. Mill 3.8" cement ramp window at 11804' and 10' of rathole. Swap the well to Flo-Pro. 3. Drill Build: 3" OH, 396' (40 deg/l00 planned) 4. Drill Lateral: 3" OH, 3025' horizontal (10 deg/l00 planned) 5. MAD pass with resistivity tools 6. Run 2 3/8" solid liner leaving TOL at 11605' 7. Pump primary cement job to TOL, 16 bbl of 15.8 ppg liner cmt planned 8. Cleanout liner and MGR/CCL log 9. Test liner lap to 2000 psi. 10. Perforate liner per asset instructions (-500') 11. Freeze protect well, RDMO Post-Rig Work: 1. Move wellhouse, Install production flowline 2. Run GLVs 3. Flowback well to separator Sean McLaughlin CTD Engineer 564-4387 CC: Well File Sondra Stewmantrerrie Hubble TREE = WELLHEA D = ACTUA TOR = KB. ELEV = BF. ELEV = KOP= Max Angle = Datum MD = OatumTVD= 4" CNV FMC 11" GEN 5 BAKER 59.6' 37.8' 1000' 49 @ 6850' 11914' 9200'SS 9-5/8" CSG, 47#, L-80, ID = 8.681" Minimum ID = 2.813" @ 3-1/2" HES SERIES 10 FMX 3-1/2" TBG, 9.3#, L-80, .0087 bpf, ID = 2.992" ÆRFORA TION SUMrvlARY REF LOG: SWS DIPOLE SHEAR SONIC 0 ANGLEATTOPÆRF: 22 @ 118 Note: Refer to Production DB for historic SIZE SPF INTERV AL Opn/Sqz 2-1/2" 6 11803-11813 0 2-1/2" 6 11803-11840 0 2-1/2" 4 11803 - 11840 0 2-1/2" 6 11908-11933 0 I PBTD 7" CSG, 26#, L-80, 10 = 6.276" DATE 07/16198 09/29/01 06/27/03 07/10/04 09/06/05 e el SAFElY NOTES: N K -61 2106' H3-1/2" TRSV, SERIES 10 FMX NIP, ID = 2.813" I . GAS LIFT rvlANDRELS ST MD TVD DEV TYÆ VLV LA TCH PORT DATE L 5 3854 3457 47 MMG DOME RK 16 09/06/05 4 7974 6297 45 MMG DOME RK 16 09/06/05 3 10100 7790 45 MMG DOME RK 16 09/06/05 I µ ~ 2 11099 8524 35 MMG OMY RK 0 6196' 1 11502 8867 25 MMG SO RK 20 09/06/05 . I 11562' H 3-1/2" HES X NIP, 10 = 2.813" I . tg I 11574' H 7-5/8" X 4-1/2" BAKER S-3 PKR, 10 = 3.875" 2S 2106' TR-SSSV I I 11599' H 3-1/2" HES X NIP, 10 = 2.813" I . I I 11609' H 3-1/2" HES X NIP, ID = 2.813" I I 11620' I 11620' H 3-1/2" TUBING TAIL WLEG I I 11605' H ELMO TT LOGGED 07/26/98 I N 07111/98 03' 11722' H rvlARKER JOINT 11722-11742' (ELMO) I al perf data DATE 11/15/98 07/27/98 07/27/98 11/15/98 ~ I ~ I 12251' I 12351' ~ REV BY COMMENTS ORlG COMPLETION, (POOL 7) RNlTP CORRECTIONS BG/KAK MO & SS DEPTH CORRECTIONS KSB/KAK GLV C/O DAVITLH GLV C/O NIAKUK UNfT WELL: NK-61 PERMfTNo: 1981140 API No: 50-029-22893-00 SEC 36, T12N, R15E, 4549.13' FEL & 3183.43' FNL DATE REV BY COMMENTS BP Exploration (Alaska) PERf ORA TiON SUMMARY REF lOG: SWS DIPOLE SHEAR SONIC ON 07/11/98 22 @11803' histQrical perf data NOTES: COMMENTS NIAKUK UNIT WElL: NK-61 PERMIT No: 1981 API No: 50-029-22893-00 SEe 36, T12N, RiSE, 4549.13' FEl 8. 3183.43' FNL BP PRUDHOE BAY. NIAKUK OIL PBU_NIAKUK BAY 100 50 NK-61 - Oil Rate (CD) (Mbblla ) Water Rate (CD) (Mbblld ) Gas Rate (CD) (MMefld ) Cum Oil Prod (MMbbl ) Gasl Oil Ratio (Meflbbl ) Weter Cut ( % 10 5 05 0.1 0.05 001 04 05 1998 99 2000 01 02 Date I NIAKUK OIL BAY 1??oo A1æe Name Oi 5000 qí Ii Ie End Rate Final Rate Cum. Prod Date 1000 8JR Fcrecæt Ended By "0 ForecætDate "" Q 500 .n Ô S Q) ro a:: ð 100 ffi 50 10 1998 99 2000 01 02 03 04 05 œ 07 œ STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Convert Injection f/H20 to MI Operation shutdown_ Stimulate _ Plugging _ Pull tubing _ Alter casing _ Repair well _ Perforate _ Other_X Cony f/H20 to MI 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchorage, AK 99519-6612 5. Type of Well: Development __ Exploratow__ Stratigraphic__ Service__X 4. Location of well at surface 2230' FNL, 2224' FEL, Sec. 36, T12N, R16E, UM At top of productive interval 1143' FNL, 3352' FEL, Sec. 01, T11N, R16E, UM At effective depth 1418' FNL, 3456' FEL, Sec. 01, T11 N, R16E, UM At total depth 1454' FNL, 3468' FEL, Sec. 01, T11N, R16E, UM (asp's 258973, 5982188) (asp's 257713, 5978033) (asp's 257674, 5977946) (asp's 257585, 5977728) 12. Present well condition summary 6. Datum elevation (DF or KB feet) RKB 55 feet 7. Unit or Property name Duck Island Unit / Endicott 8. Well number 1-67/T-20 9. Permit number / approval number 189-114 10. APl number 50-029-21985-00 11. Field / Pool Endicott Oil Pool Total depth: measured 12150 feet Plugs (measured) CMT Cap @ 11551' true vertical 10614 feet 4-1/2" XXN Plug @ 11645' Effective depth: measured 11551 feet Junk (measured) 3-3/8" 25 ft Perf Gun @ 11970'. true vertical 10063 feet ~nchorage Casin9 Length Size Cemented Measured Depth True Vertical Depth Conductor 64' 30" Driven 103' 103' Surface 2459' 13-3/8" 3577 cf Permafrost 2498' 2498' Intermediate 10923' 9-5/8" 575 cf Class 'G' 10962' 9536' Slotted Liner 1730' 7" 643 cf Class 'G' 10683' - 12142' 9297' - 10551' Perforation depth: measured Open Perfs 11444'-454', 11463'-473', 11488'-496', 11500'-506', 11510'-524', 11528'-550' Sqzd Perfs Below CMT Cap 11605'-11638', Mechanically Isolated 11702'-11736' true vertical Open Perfs 9966'-975', 9983'-992', 10006'-013', 10017'-022', 10026'-039', 10042'-062' Sqzd Perfs Below CMT Cap 10112'-10142', Mechanically Isolated 10201 '-10232' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 TDS to 10664'. 4-1/2" Tubing Tail @ 10748'. Packers & SSSV(type& measured depth) 9-5/8" x 4-1/2" TIW (HBBP) PKR @ 10664'. 7" X 4-1/2" Otis 'WD' PKR @ 11655'. 4-1/2" Otis SSSVLN @ 1551'. 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Prior to well operation 06/13/2002 Subsequent to operation 06/23/2002 Oil-Bbl Representative Daily Average Production or Injection Data Gas-Mcr Water-Bbl 10595 13400 Casing Pressure Tubing Pressure 1886 2765 15. Attachments Copies of Logs and Surveys run __ Daily Report of Well Operations __ 16. Status of well classification as: Oil __ Gas __ Suspended __ Service MI INJECTION 17. I hereby certify that the foregoing, is~rue and correct to the best of my knowledge. DeWayne R. Schnorr Form 10-404 Rev 06/15/88 · Date Julv 03, 2002 Prepared b}' DeWa)me R. Schnorr 564-517~,~, $CANNEI u [,NtD p E 1-67/T-20 Description of Work Completed NRWO OPERATIONS 06/05/2002 PULL MCX VALVE: Drift & tag TD 06/09/2002 IPROF: IN.1ECTION PROFILE ISSSV C/O OR STROKE 06/1 5/2002 06/15/2002 FREEZE PROTECT WELL 06/23/2002 CONVERTED FROM WATER TO MI INJECTION SUMMARY 06/05/02 PULLED MCX, TAGGED BOTTOM @ 11,498' SLM, (11,537' CORRECTED DEPTH). MCX OOH FOR REPAIR. RDMO. 06/09/02 CHOKE WELL BACK AND RIH W/1 11/16" PFCS/PILS/PSPT. DECHOKE WELL AND PERFORM AN INJECTION PROFILE. MAKE 40, 80, 120, 160 FPM PASSES OVER THE PERF INTERVAL. MAKE ONE 80 FPM PASS OVER THE ENTIRE INTERVAL FROM THE TOP OF CEMENT CAP AT 11551 TO BOTTOM OF TUBING AT 10748' TO IDENTIFY OTHER INJECTION LOCATIONS. NONE FOUND. CHOKE WELL BACK TO POOH. NOTIFY PAD OPERATOR OF CHOKE FULL STATUS UPON LEAVING WELL. 06/15/O2 SET 4 1/2" BBE SCSSSV (SER # NBB-61) @ 1515' SLM, POOH. NOTE: IT TOOK ONE HOUR TO PURGE BOTH BALANCE AND CONTROL LINES. WELL LEFT SHUT-IN. 06/15/02 PUMP 25 BBLS DOWN TUBING FOR FREEZE PROTECT AND SPACER FOR MI INJECTION. 06/23/02 CONVERTED WELL FROM WATER INJECTION TO MI INJECTION. FLUIDS PUMPED BBLS 2 DIESEL USED FOR PRESSURE TESTING (2 TESTS) 25 METHANOL 27 TOTAL Page I ;CANNED JUL 0 2002 198-1 14-0 PRUDHOE BAY UN NIA NK-61 MD 12365 TVD.09_67_2_ Completion Date: Microfilm Roll / - Roll 2 / 50- 029-22893-00 BP EXPLORATION (ALASKA) INC 7/27/98 Completed Status: 1-OIL Current: - Elevation: KB 0060 Name L ADN-MD L ADN-TVD L CDR-MD L CDR-TVD L DATA FRAC/WRM B L DSS1 L PERF/CCL L PEX-CN/GR L PEX-NDT/GR L PEX-NDT/SSTVD L PRES BU-PRES/TEM L PROD-SPlN/TEM/ L RFT R SRVY RPT Interval FINAL 8300-12300 6/27/98 THRU FINAL 6500-9600 6/27/98 THRU FINAL 200-12300 6/27/98 THRU FINAL 200-9600 6/27/98 THRU FINAL TEM/PRES 11620-11900 FINAL 10000-12360 FINAL 11700-11987 FINAL 10000-12360 FINAL 10000-12360 FINAL 10000-12360 FINAL 11690-11986 FINAL PRES 11690-11986 FINAL 10000-12360 SCHLUM 0-12365. 5 Run Sent Received T/C/D .. 7/10/98 OH 10/15/98 10/16/98 7/10/98 OH 10/15/98 10/16/98 7/10/98 OH 10/15/98 10/16/98 7/10/98 OH 10/15/98 10/16/98 0/21/98 CH 5 12/10/98 12/10/98 093 7/11/98 OH 10/6/98 10/6/98 1/15/98 CH 5 12/10/98 12/10/98 CUL 7/11/98 OH 10/6/98 10/6/98 7/11/98 OH 10/6/98 10/6/98 7/11/98 OH 10/6/98 10/6/98 1/13/98 CH 5 12/10/98 12/10/98 093 1/13/98 CH 5 12/10/98 12/10/98 093 7/11/98 OH 10/6/98 10/6/98 OH 11/23/98 11/24/98 Thursday, September 14, 2000 Page 1 of 1 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, 2001: 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 Niakuk4-16-01 JJ .C.C: NON.-CONFIDENTIAL SVS PBU Niakuk 4-16-01 JJ Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: BPX Operator Rep: Ron White AOGCC Rep: Jeff Jones Submitted By: Jeff Jones FieldfUnit~ad: PBU/Niakuk Field , Separator psi: LPS 460 Date: 4/16/01 HPS :.f:~ _ ii i .i i _ I i . ii . i i i Well Permit Separ Set L/P Test Test Test Date oa, WAG, GIN J, Number Number PSI PSI Trip Code Code Code Passed G~S or CYCLE NK-07' 1931590 .... NK-08 'i940930'''460 35'0 '' 3~0 ''P ~ '"P ' 'OiL NK-09 1941400~ 460 350 340 P P P ' ' 0IL NK-12A 1940070' 460' 350.. 200 3 ....P ' P 4/16/01 "OIL NK-13 19613401 NK-14 "i~60~60' 460 350 '' 350 P P P 0IL NK-18 1931770 341(-19 '194123b .......... NK-20 " '1931910 460 350 J25 P ' '' P P ....... OiL N~-51' 1940866 460 350 325 .... P P "'P '''oIL' NK-22 1931350 NK-57 "195~21'0 '"460 350 325 '"~' P P ........ OIL NK-28 1960930 NK-29 196190b '4~0 350 .... 250 P 'P' P ........ OIL NK~3~ '19808~0 ...... NK-42 1~4'1080 - ' 460 350 340 "P P ' e OIL · NK-61 1981140 460 350 325 P P e OIL N~'62 1'972560 '460...... 350 325 " P 4 '"P' ' 4/16201 "OIL L~-56' ' 1940050 ....460 ' 350. 350 P P P ...... OIL Wells: 12 Components: 36 Failures: 2 Failure Rate: 5.50% [-! 90 Day Remarks: NK-12A pilot was replaced and passed retest on 4/16/01 NK-62 stroked valve and passed retest on 4/16/01 L6- 26 is on the Niakmk Pad and drilled into the Lisburne formation. 12 well house inspections, no except,ions._ RJF 1/16/01 Page 1 ofl SVS PBU Niakuk 4-16-01 JJ BP EXPLORATION BP Exploration (Alaska) Inc. 900 East l~enson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 December 10th, 1998 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear AOGCC Representative, Attached are bluelines and sepias for well Niakuk 61. Per 20.AAC 25.537(d) BP Exploration would like these logs to be held confidential for 24 months. The specific attached logs include: L. og Type Perforating Record Pressure Build Up Pressure/Temp Data Frac/Warm Back/Pressure/Temp Production Profile FBS/CFS/Gradio/P/T Company Schlumberger Schlumberger Schlumberger Schlumberger Run Date 11/15/98 11/13/98 10/21/98 11/13/98 Please contact me at 564-5126 if you have any questions. Sincerely, David L. Boyer, Sr. Geo~t CNS Greater Regional Opportunities MS Enclosures Please sign below and return to Marian Sloan, BPX, Mail Stop MB9-4 for reCe'i.~t of transmittal.. Depths 11700-11987 11690-11986 11620-119OO 11690-11986 · ~- STATE OF ALASKA --. ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [] Oil [~ Gas [] Suspended [--] Abandoned I--] Service 2. Name of Operator 7. Permit Number BP Exploration (Alaska)Inc. 98-114 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22893 z~. Location of well at surface ! ~:;:ii.!.:i~ i'~:~,::i:.~ ! ~ ~ 9. Unit or Lease Name . Niakuk At to,p, of productiv,e interval ~I ,=.,'~._~ 10. Well Number 1920 NSL, 4492 WEL, SEC. 25, T12N, R15E, UM~ ~.'~'.~' i ,,!~t~ NK-61 At tot,al depth , : ~,/~_~..~_- ! .... 2076 NSL, 4604 WEL, SEC. 25, T12N, R15E, UM' ' ¥_'...~~ 1 1. Field and Pool Niakuk Oil Pool 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. RKB = 59.60'I ADL 034630 12. Date Spudded 113. Date I.D. Reached I 14. Date Comp., Susp., or Aband.115. Water depth, if offshore 116. No. of Completions 6/27/98 7/10/98 7/27/98 N/A MSLI One 1~. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD)I19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 12365' 9672 FT 12267' 9579 FTI []Yes E~NoI 2105' MDI 1800' (Approx.) 22. Type Electric or Other Logs Run USlT/Gyro, L/D MWD, LDC, CDL-CNL-GR, GR/JB/GR/CCL 23. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH HOLE 0~1GI~AL SIZE WT. PER FT. GRADE TOP Bo'FrOM SIZE CEMENTING RECORD AMOUNT PULLED 20" 94# H-40 42' 115' 30" 260 sx Arctic Set (Approx.) 9-5/8" 47# L-80 40' 6196' 12-1/4" 2410 sx PF 'E', 410 sx Class 'G' 7" 29# L-80 38' 12351' 8-1/2" 275 sx Class 'G' 24. Perforations open to Production (MD+TVD of Top and 25. TUBING RECORD Bottom and interval, size and number) S~ZE DEPTH SET (MD) PACKER SET (MD) See Attached 3-1/2", 9.4#, EUE 8R 11621' 11574' MD TVD MD TVD i26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Freeze protect with 154 bbls diesel Frac, 11803'-11840' 1352o# 2o/4o CL Lead & ;l'f'~. ~ ~ NOV 27. PRODUCTION TEST Date First Production I Method of Operation (Flowing, gas lift, etc.) ~-~a ,.,~ ,~ October 28, 1998I Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE TEST PERIOD I Flow Tubing Casing Pressure CALCULATED iOIL-BBL GAS-MCF WATER-BBL O~L GRAVITY-APl (CORR) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Markers 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids Marker Name Depth Depth recovered and gravity, GOR, and time of each phase. Top HRZ 11522' 8886' Top Kuparuk 11803' 9144' Top Kingak 12064' 9388' 31. List of Attachments Summary of Daily Drilling Reports, Survey 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed t Lo~,e, Crane .~. Title Engineering Supervisor Date NK-61 I..~ 98-114 -~'~'Prepared By Name/Number: Carol Withey, 564-4114 Well Number Permit No. / Approval No. 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 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'. Form 10-407 Rev. 07-01-80 WELL NAME' NK-61 24. (10-407) Attachment- Perforations open to ProdUction 11/13/98 2-1/2" Gun Diameter, 6 spf ................... ........ 11803'...;....11813' MD (re-perf) 9144' - 91.53..'' TVD ..... 11908'- 11928' MD 9208'- 9246' TVD ............. 7/27/98 2-1/2" Gun Diameter, 6 spf ...... 11803' - 11840' MD 9144' - 9178' TVD ,,, 7/27/98 2-1/2" Gun Diameter, 4 spf (re-perf) .... 11803' - 11840' MD 9144' - 9178' TVD .......... ........................... ..................... Facility Date/Time 26 Jun 98 27 Jun 98 28 Jun 98 29 Jun 98 30 Jun 98 01 Jul 98 NK Main Pad 06:00-12:00 12:00-18:00 18:00-19:30 19:30-05:00 05:00-06:00 06:00-09:00 09:00-09:30 09:30-10:30 10:30-11:00 11:00-11:30 11:30-12:00 12:00-19:00 19:00-19:15 19:15-19:30 19:30-20:00 20:00-22:30 22:30-23:00 23:00-23:30 23:30-06:00 06:00-09:30 09:30-10:30 10:30-11:30 11:30-12:00 12:00-13:00 13:00-13:30 13:30-14:30 14:30-15:00 15:00-06:00 06:00-11:00 11:00-11:30 11:30-13:00 13:00-14:00 14:00-06:00 06:00-17:00 17:00-18:00 18:00-18:30 18:30-21:30 21:30-22:30 22:30-23:30 23:30-01:00 01:00-01:30 01:30-03:00 03:00-03:30 03:30-06:00 06:00-07:00 07:00-08:00 08:00-08:30 08:30-09:00 09:00-11:00 11:00-14:00 14:00-16:00 16:00-18:00 18:00-22:30 22:30-23:00 Duration 6 hr 6 hr 1-1/2 hr 9-1/2 hr 1 hr 3 hr 1/2 hr 1 hr 1/2 hr 1/2 hr 1/2 hr 7 hr 1/4 hr 1/4 hr 1/2 hr 2-1/2 hr 1/2 hr 1/2 hr 6-1./2 hr 3-1/2 hr 1 hr lhr 1/2 hr 1 hr 1/2 hr lhr 1/2 hr 15hr 5 hr 1/2 hr 1-1/2 hr 1 hr 16hr llhr lhr 1/2 hr 3 hr lhr 1 hr 1-1/2 hr 1/2 hr 1-1/2 hr 1/2 hr 2-1/2 hr 1 hr lhr 1/2 hr 1/2 hr 2hr 3 hr 2 hr 2 hr 4-1/2 hr 1/2 hr Progress Report Well NK-61 Activity Rig moved 100.00 % Rigged up Divertor Functioned Divertor Racked back drill pipe Made up BHA no. 1 Made up BHA no. 1 (cont...) Tested Fluid system Drilled to 177.0 ft Made up BHA no. 1 Drilled to 244.0 ft Took Gyro survey at 215.0 ft Drilled to 586.0 ft Circulated at 586.0 ft Pulled out of hole to 183.0 ft Pulled BHA Made up BHA no. 2 R.I.H. to 586.0 ft Took Gyro survey at 586.0 ft Drilled to 895.0 ft Drilled to 1290.0 ft (cont...) Took Gyro survey at 1290.0 ft Drilled to 1387.0 ft Circulated at 1387.0 ft Pulled out of hole to 215.0 ft Pulled BHA Made up BHA no. 3 R.I.H. to 1387.0 ft Drilled to 3167.0 ft Drilled to 4013.0 ft (cont...) Circulated at 4013.0 ft Pulled out of hole to 1667.0 ft R.I.H. to 4013.0 ft Drilled to 5423.0 ft Drilled to 5989.0 ft (cont...) Circulated at 5989.0 ft Cleared Kelly/top drive hose Pulled out of hole to 214.0 ft Pulled BHA Made up BHA no. 4 R.I.H. to 3178.0 ft Reamed to 3178.0 ft R.I.H. to 5797.0 ft Reamed to 5989.0 ft Drilled to 6164.0 ft Drilled to 6205.0 ft (cont...) Circulated at 6205.0 ft Pulled out of hole to 5240.0 ft R.I.H. to 6205.0 ft Circulated at 6205.0 ft Pulled out of hole to 214.0 ft Pulled BHA Page Date Rigged up Casing handling equipment Ran Casing to 2000.0 ft (9-5/8in OD) Circulated at 2000.0 ft 1 18 November 98 Facility Date/Time 02 Jul 98 03 Jul 98 04 Jul 98 05 Jul 98 06 Jul 98 07 Jul 98 08 Jul 98 NK Main Pad Progress Report Well NK-61 Page Date Duration Activity 23:00-01:00 01:00-02:00 02:00-03:30 03:30-04:00 04:00-05:30 05:30-06:00 06:00-07:00 07:00-08:00 08:00-09:00 09:00-10:30 10:30-11:30 11:30-12:30 12:30-14:30 14:30-15:00 15:00-16:00 16:00-18:00 18:00-18:30 18:30-02:30 02:30-06:00 06:00-08:00 08:00-09:00 09:00-10:30 10:30-11:30 11:30-12:30 12:30-16:00 16:00-17:30 17:30-22:00 22:00-22:30 22:30-23:30 23:30-01:00 01:00-05:00 05:00-05:30 05:30-06:00 06:00-06:30 06:30-20:30 20:30-22:00 22:00-00:00 00:00-01:00 01:00-01:30 01:30-02:00 02:00-05:30 05:30-06:00 06:00-01:30 01:30~02:30 02:30-06:00 06:00-07:30 07:30-11:00 11:00-12:00 12:00-14:00 14:00-18:00 18:00-18:30 18:30-06:00 06:00-02:00 02:00-04:30 2 hr 1 hr 1-1/2 hr 1/2 hr 1-1/2 hr 1/2 hr 1 hr 1 hr 1 hr 1-1/2 hr 1 hr lhr 2hr 1/2 hr lhr 2 hr 1/2 hr 8hr 3-1/2 hr 2hr 1 hr 1-1/2 hr 1 hr 1 hr 3-1/2 hr 1-1/2 hr 4-1/2 hr 1/2 hr 1 hr 1-1/2 hr 4 hr 1/2 hr 1/2 hr 1/2 hr 14hr 1-1/2 hr 2hr 1 hr 1/2 hr 1/2 hr 3-1/2 hr 1/2 hr 19-1/2 hr 1 hr 3-1/2 hr 1-1/2 hr 3-1/2 hr 1 hr 2 hr 4 hr 1/2 hr 11-1/2 hr 20 hr 2-1/2 hr Ran Casing to 4008.0 ft (9-5/8in OD) Circulated at 4008.0 ft Ran Casing to 4816.0 ft (9-5/8in OD) Rigged up Casing handling equipment Ran Casing to 6165.0 ft (9-5/8in OD) Ran Casing to 6205.0 ft (9-5/8in OD) Circulated at 6192.0 ft Rigged up Handling equipment Circulated at 6192.0 ft Mixed and pumped slurry - 300.000 bbl Displaced slurry - 149.000 bbl Functioned DV collar Mixed and pumped slurry - 750.000 bbl Displaced slurry - 159.000 bbl Rigged down Casing handling equipment Rigged down Divertor Rigged up Casing head Rigged up Well control Tested Well control Tested Well control (cont...) Serviced Drillstring handling equipment Made up BHA no. 5 Serviced Drillfloor / Derrick Made up BHA no. 5 Singled in drill pipe to 2097.0 ft Drilled installed equipment - DV collar Singled in drill pipe to 6083.0 ft Circulated at 6083.0 ft Tested Casing Serviced Block line Drilled cement to 6230.0 ft Circulated at 6230.0 ft Performed formation integrity test Performed formation integrity test (cont...) Drilled to 7380.0 ft Circulated at 7380.0 ft Pumped out of hole to 6162.0 ft R.I.H. to 7349.0 ft Circulated at 7349.0 ft Rigged up Survey wireline unit Conducted electric cable operations Rigged down Survey wireline unit Drilled to 8322.0 ft Circulated at 8322.0 ft Pulled out of hole to 3500.0 ft Pulled out of hole to 1105.0 ft (cont...) Pulled BHA Serviced Drillfloor / Derrick Made up BHA no. 6 R.I.H. to 8234.0 ft Reamed to 8322.0 ft Drilled to 9037.0 ft Drilled to 10238.0 ft (cont...) Circulated at 10238.0 ft 2 18 November 98 Facility Date/Time 09 Jul 98 10 Jul 98 11 Jul 98 12 Jul 98 13 Jul 98 14 Jul 98 15 Jul 98 16 Jul 98 Progress Report NK Main Pad Well NK-61 Page 3 Rig~ ~)E~) [ 7 Date 18 November 98 04:30-06:00 06:00-07:30 07:30-11:30 11:30-13:00 13:00-14:00 14:00-17:00 17:00-17:30 17:30-22:00 22:00-22:30 22:30-06:00 06:00-06:00 06:00-11:30 11:30-13:00 13:00-15:00 15:00-16:00 16:00-18:30 18:30-01:30 01:30-03:30 03:30-06:00 06:00-07:15 07:15-12:30 12:30-17:30 17:30-03:00 03:00-03:30 03:30-05:30 05:30-06:00 06:00-13:00 13:00-14:00 14:00-19:30 19:30-20:00 20:00-22:30 22:30-06:00 06:00-09:00 09:00-10:00 10:00-11:00 11:00-11:30 11:30-14:00 14:00-15:00 15:00-18:00 18:00-20:30 20:30-21:00 21:00-02:00 02:00-06:00 06:00-15:30 15:30-18:30 18:30-02:00 02:00-06:00 06:00-14:30 14:30-15:30 15:30-20:00 20:00-21:30 21:30-22:00 22:00-01:00 01:00-03:00 Duration 1-1/2 hr 1-1/2 hr 4 hr 1-1/2 hr 1 hr 3 hr 1/2 hr 4-1/2 hr 1/2 hr 7-1/2 hr 24 hr 5-1/2 hr 1-1/2 hr 2 hr lhr 2-1/2 hr 7 hr 2 hr 2-1/2 hr 1-1/4 hr 5-1/4 hr 5hr 9-1/2 hr 1/2 hr 2hr 1/2 hr 7 hr 1 hr 5-1/2 hr 1/2 hr 2-1/2 hr 7-1/2 hr 3 hr lhr 1 hr 1/2 hr 2-1/2 hr lhr 3 hr 2-1/2 hr 1/2 hr 5 hr 4hr 9-1/2 hr 3 hr 7-1/2 hr 4hr 8-1/2 hr 1 hr 4-1/2 hr 1-1/2 hr 1/2 hr 3hr 2 hr Activity Pulled out of hole to 9200.0 ft Pulled out of hole to 6107.0 ft (cont...) Fill pits with Water based mud R.I.H. to 10165.0 ft Circulated at 10238.0 ft Circulated at 10238.0 ft Circulated at 10238.0 ft Drilled to 10356.0 ft Serviced Mud shakers Drilled to 10720.0 ft Drilled to 12100.0 ft (cont...) Drilled to 12365.0 ft (cont...) Circulated at 12365.0 ft Pulled out of hole to 10123.0 ft R.I.H. to 12275.0 ft Circulated at 12365.0 ft Pulled out of hole to 390.0 ft Pulled BHA Conducted electric cable operations Conducted electric cable operations (cont...) Repaired Formation logs Conducted electric cable operations Conducted electric cable operations Retrieved B ore protector Rigged up Casing handling equipment Ran Casing to 7in (120.0 ft OD) Ran Casing to 6180.0 ft (7in OD) (cont...) Circulated at 6180.0 ft Ran Casing to 10570.0 ft (7in OD) Circulated at 10570.0 ft Ran Casing to 12310.0 ft (7in OD) Circulated at 12351.0 ft Circulated at 12351.0 ft (cont...) Mixed and pumped slurry - 56.000 bbl Displaced slurry - 470.000 bbl Tested Casing - Via string Installed Slip & seal assembly Rigged down Casing handling equipment Rigged up Top ram Tested BOP stack Rigged up Drillstring handling equipment Conducted slickline operations on Slickline equipment - Tool run Laid down 4500.0 ft of 5-1/2in OD drill pipe Laid down 12000.0 ft of 5-1/2in OD drill pipe (cont...) Conducted electric cable operations Conducted electric cable operations Ran Tubing to 3-1/2in (2000.0 ft OD) Ran Tubing to 9515.0 ft (3-1/2in OD) (cont...) Installed SCSSSV control line Ran Tubing to 11585.0 ft (3-1/2in OD) Installed Tubing hanger Removed Tubing handling equipment Removed BOP stack Installed Xmas tree Facility Date/Time NK Main Pad Progress Report Well NK-6! Page Rig ~/~L)D{ 7 Date 03:00-03:30 03:30-06:00 06:00-07:00 07:00-08:00 08:00-09:00 09:00-10:30 Duration 1/2 hr 2-1/2 hr 1 hr 1 hr lhr 1-1/2 hr Activity Removed Hanger plug Freeze protect well - Diesel of 154.000 bbl Freeze protect well - 154.000 bbl of Diesel (cont...) Set packer at 11574.0 ft with 3900.0 psi Tested Permanent packer Serviced Hanger plug 4 18 November 98 Performance Enquiry Report Operator ARCO Date 20:36, 18 Nov 98 Page 1 The analysis is from - 06:30, 04 Jul 98 - to - 06:30, 04 Jul 98 Programs in Result Table: NK-61 Drill and Complete Well Type Time From Time To Duration Description E.M.W.(ecfuivalent mud weight) NK-61 Event 06:30, 04 Jul 98 06:30, 04 Jul 98 0 hr 0 min Obtained leak off 13.0 Hole Size MDR 8-1/2 To: Anchorage Productiob=,~gineering --~,-ocation: Niakuk From' Nordlander Date: 10/21/98 Operation: NK-61 Frac Treatment Cost Code: 731217 - 9335 - 070 - etc Detail Code: Drlg - Frac - etc Summary Rigged up equipment for E-line Data Frac & Frac. Rih w/e-line tools, tagged td @ 12,240, logged up baseline. Parked tools 50' above per[s @ 11,750 during data frac. Pumped injection test, perf breakdown as per program. Started data frac but had trouble with the new Iow guar system and pump so had to shut down and corrective the problem while delivering additional additives. There had been 736 bbls pumped at the time so started the warm back passes. Logs indicated a channel existed from bottom per[ at 11,840 to 11,920, which would put the frac in a possible undesirable zone. Went ahead with data frac as per program and followed with subsequent warmback passes. Downhole data frac pressure and temp was used in the redesign of the frac. Logs indicated channel again down to 11,940. Presented town with information and they decided to proceed with frac program and reducing the size it to limit frac growth downward. Pumped redesigned frac and screened off while 50 bbl into the 98 bbl designed flush. Estimated sand top is at 5,747 in unbroken gel (or 11,052 if it completely falls out of gel and does not bridge off). Note that Propnet, and fiber hair like substance, mixed into the prop to curtail sand flowback and was cut out of the last 10 bbls of dirty slurry. Did not and could not freeze protect well, Injectivity Test Design Rate Bbls Max Rate Final STP ISlP & Breakdown bpm Pumped bpm psi psi 30 30 19.9 5676 2200 Data Frac Bbls Bbls XL gel Time XL gel ~ Final. STP ~ ISIP Pumped to Perfs i on perfs psi psi' 370 250 i' 8'. 3543 -.. 1909 Frac Sand Lead prop Tail prop Design total Tree saver Pumped behind pipe behind pipe behind pipe Liner Sand rubber left Job was ..M#.. M #/size M # / size M # M # in hole? . , /;41,285'- 7,364 NO Screen 4~ 8,649'". lr3,~52'O", out "' ~ 20140 cl ' ,6~20 cl" ,. 16/20 cl Frac Estimated Final STP ISIP Propnet, sand top psi psi # 5747 6816 6303 465 Fluid Summary 135 Freshwater w/2% Kcl & bactericide. (note that all frac fluids were mixed with this same water) 700 X-Link 270 Linear Gel 263 X-linkin fracjob 36 Diesel 1404 Total Load Fluid Operation: NK-61 Frac Treatment, ,~-- '--~ Page: 2 10/21/98 Initial Well Status Siwhp lap 0ap GIp FIp Fit psi psi psi psi psi °F Shut-in 1130 0 0 0 0 15 Time Operation 8:00 Miru SWS and HB&R. Tanks are spotted. 9:00 Miru DS Frac equipment. 11:29 Start preping to set tree saver. X-link tested in lab, on site sample ok once heated. 12:53 Tree saver set, continue rigging hard line. 13:08 Start rigging up e-line. 13:49 Hold safety meeting. 14:23 Pressure test backside to 3500. Trips set at 3500. Hold 1500. 15:52 Start engines. 16:51 Start pressure test. 17:02 Test to 7100, trips set at 7200, bleed down, open swab and master. Set cups on tree saver. Increase ia to 2500. 17:11 Run e-line down hole. 18:30 Tag td @ 12,240, log up. 18:36 Bottom hole static pressure is 4493 psi @ 9200 tvdss. Log base line. 19:04 Park 50' above perfs. 4432 psi 182 °F @ 11750. 19:06 19:02 SWS time, correct DS time to SWS (this telex will remain at current setting) Time Rate Whp lap Total Stage Remarks bpm psi psi bbls bbls 19:12 1227 2241 Start down hole with kcl water for injection test, bring ia up to ~2800. 19:16 3.0 3300 2560 15 15/k Shut down. 3192 ISIP. 19:32 - 1474 2746 15 BH P 4744 psi, start x-link. Take sample, ph 9.7, looks ok, a little wet. 19:38 4.9 3860 2854 45 30/x Switch to linear gel. Take sample, 19:44 5.1 3488 2874 75 30/I Switch to kcl water. 19:52 5.0 2943 2849 117 42 Start ramping up. 19:53 16.6 4656 2870 123 48/k X-link at perfs, start breakdown, still ramping, pushing tools down hole, reduce to 20 bpm. 19:57 19.9 5676 2840 195 72/k Shut down. 2200 ISIP. Maxdown hole 6000-6100 psi. 20:16 1236 2732 195 Prepare for data frac. BHP 5233, 117 °F. 20:21 1158 2715 195 Start down hole with x-link. 20:29 5.0 3410 2794 234 39 Not x-linking ??, shutdown. 20:33 - 1735 2762 Re-start, possibly good x-link. Check samples again. Samples not great. 20:43 5.0 4300 2792 289 94 Shut down to fix fluids. 21:19 - 1150 Start back on line to ensure pumpability. 21:23 3200 309 114/x Shut down. Wait on more fluid loss additives from Prudhoe. 22:22 925 2430 Re-start down hole with x-link. Samples are good, ph 9.5, and less wet. 22:42 5.0 4360 2847 407 98/x Reduce rate to close frac. Cut x-linker. 22:47 2.0 3605 2820 418 10/x Increase rate for data frac. Start x-linker. 22:50 15 5200 2830 40 Had to reduce rate as activator pump not working. 22:51 10 4000 2770 466 48 Shutdown and work on pump. 22:59 - 1840 2740 Re-start. 23:06 15.0 4250 2860 561 143 Reduce rate, pump still not working. Operation: NK-61 Frac Treatment'- r -.-7., Page: 3 Time Rate Whp lap Total Stage Remarks bpm psi psi bbls bbls 23:11 10.0 3450 2850 616 198/x Switch to linear gel, increase rate to flush pipe (did not get activator pump to work). 23:19 15.0 3830 2805 736/ 120/I Shut down. Have to bring more caustic water out to location. 0:22 Start logging intermediate 1 hour warm backs. 3:53 - 787 1735 - - Prepare for data frac, waiting for last warmback Icg. 4:20 Start down hole with x-link. Sample looks ok. 4:39 5.1 4130 2871 98 98/x Reduce rate to close frac. 4:43 2.0 3450 2876 108 10/x BHP 6000. Increase rate for data frac. 4:53 14.9 4650 2874 250 142/x Switch to linear gel. 5:01 15.1 3543 2850 370 120/I Shut down. 1909 ISlP. 5:55 - 1208 2450 Freeze protect turbines, surface lines, and tubing w/diesel. 6:05 406/ 36/d Shut down. Start warm back pass. 29 bbls downhole. 11:10 911 1477 Finished logging, pooh. 12:21 925 1340 At surface, have to unset tree saver as e-line tools seem bird nested. Line not bird nested. 13:58 Town advises to go forward with the frac. Still rigging off SWS. Work on redesign. 16:00 Hold safety meeting. 16:19 Rev up engines. 16:37 Pressure test to 7500. 16:47 - 1057 2480 - Start pad down hole. Bring ia up to 2800. 16:50 5.1 2200 2820 16/ 16/ Shut down, activator pump not working. 17:07 1296 2834 Start down hole with pad. 17:11 5.0 2660 2860 21 21.4/ Switch to 1 ppg (20/40 cl). Start propnet. 17:12 4.9 2710 2865 28 6/ Switch to 2 ppg. 17:14 5.0 2760 2871 33 6/ Switch to 3 ppg. 17:16 5.2 2742 2882 47 13/ Switch to 4 ppg. 17:21 5.1 2560 2920 68 21/ Switch to 5 ppg. 17:25 5.2 2255 2920 90 22/ Switch to 6 ppg. 17:28 5.0 2065 2891 108 19 Pad on perfs. Switch to 16/20 cl. 17:29 5.0 2000 2882 112 23/ Switch to 7 ppg. Increase rate. 17:32 15.0 4482 2876 139 28/ Switch to 8 ppg. 17:39 15.0 4463 2920 238 97/ Switch to 9 ppg. 17:40 257 18 Shut off propnet. 17:40 15.1 4083 2909 265 27/ Switch to flush. 17:44 6816 3006 314 50/ Screen out, shutdown. 8.8 ppg on perfs w/propnet. 17:54 2870 Bleed back ia to 500, continue rig down. 21:00 Off location. AnadrilFSchlumberger Survey Report WELL INFORMATION TD Date: 10-Jul-98 Client: BP Exploration (Alaska) Inc. Field: Niakuk Well Name: NK-61 Permanent datum: Mean Sea Level Depth measured from: RKB Elevation of kelly bushing: 59.60 Elevation of rig floor: 59.60 Elevation of ground level: 19.00 Magnetic Declination: 28.28 Grid Convergence: 0.00 Total Correction: 28.28 RECEIVED AUG ! ? 1998 BPXA PDC TIE IN POINT Measured Depth: 0.00 True Vertical Depth: 0.00 Inclination: 0.00 Azimuth: 0.00 N/S displacement: 0.00 E/W displacement: 0.00 Azimuth from rotory table to target: 328.12 NOV 2 0 :998 Alaska 0,3 & Gas Cces. Commis~b¢.. Measured Station Station Station Vertical Vertical .Depth Inclination Azimuth Interval Depth Section (ft) (deg) (deg) (ft) (ft) (ft) 0.00 0.00 0.00 0.00 0.00 0.00 101.00 0.15 106.10 101.00 101.00 -0.10 200.00 0.52 71.00 99.00 200.00 -0.29 300.00 0.35 27.00 100.00 300.00 -0.24 400.00 0.61 11.30 100.00 399.99 0.31 500.00 1.29 318.30 100.00 499.98 1.80 600.00 2.68 335.90 100.00 599.92 5.23 700.00 4.83 332.30 100.00 699.70 11.75 800.00 7.13 332.70 100.00 799.15 22.13 900.00 8.29 330.70 100.00 898.24 35.52 1000.00 10.33 333.60 100.00 996.92 51.65 1100.00 12.06 337.20 100.00 1095.01 70.89 1200.00 13.61 337.20 100.00 1192.51 92.82 1250.00 14.20 336.10 50.00 1241.05 104.71 1300.00 14.65 336.30 50.00 1289.47 117.04 Latitude ¢,T/-S) Departure ~/-W) (ft) Total At Dog Leg displ Azim Severity (ft) (deg) (deg/1000 0.00 0.00 0.00 0.00 0.00 -0.04 0.13 0.13 106.10 0.15 0.07 0.68 0.68 83.78 0.41 0.49 1.24 1.34 68.36 0.36 1.29 1.49 1.97 49.11 0.29 2.65 0.84 2.78 17.64 1.04 5.62 -0.86 5.69 351.30 1.50 11.49 -3.77 12.09 341.82 2.16 20.73 -8.58 22.43 337.52 2.30 32.53 -14.95 35.80 335.32 1.19 -22.47 51.96 334.38 2.09 -30.50 71.36 334.70 1.87 -39.11 93.56 335.29 1.55 -43.88 105.57 335.44 1.29 -48.90 118.03 335.52 0~91 46.85 64.52 84.99 96.02 107.42 Anaddll Schlumberger Page 1 ORIGINAL 7/13/98 Measured Station Station Station Vertical Depth Inclination Azimuth Interval Depth (f£) (deg) (deg) (ft) (ft) 1350.00 15.09 335.50 50.00 1337.80 1400.00 15.02 336.30 50.00 1386.08 1450.00 15.02 336.10 50.00 1434.37 1500.00 15.28 336.10 50.00 1482.63 1550.00 15.38 335.80 50.00 1530.85 1600.00 15.35 335.90 50.00 1579.07 1650.00 15.67 335.60 50.00 1627.25 1700.00 15.94 335.70 50.00 1675.36 1750.00 16.53 335.60 50.00 1723.36 1800.00 17.31 335.90 50.00 1771.20 1850.00 18.47 336.70 50.00 1818.78 1900.00 19.55 337.40 50.00 1866.05 1950.00 20.46 337.80 50.00 1913.03 2000.00 21.21 338.00 50.00 1959.76 2050.00 22.28 336.90 50.00 2006.21 2100.00 22.69 336.60 50.00 2052.40 2150.00 23.07 335.50 50.00 2098.47 2200.00 23.24 334.60 50.00 2144.44 2250.00 23.02 331.50 50.00 2190.43 2300.00 23.35 329.50 50.00 2236.39 2350.00 23.96 328.10 50.00 2282.19 2400.00 24.05 327.90 50.00 2327.86 2450.00 25.75 327.00 50.00 2373.21 2500.00 26.90 326.90 50.00 2418.03 2550.00 28.24 327.50 50.00 2462.35 2600.00 29.34 328.10 50.00 2506.17 2650.00 30.82 328.90 50.00 2549.43 2700.00 31.98 328.90 50,00 2592.11 2750.00 32.96 328.60 50.00 2634.29 2800.00 33.76 327.50 50.00 2676.05 2850.00 35.10 326.90 50.00 2717.29 2900.00 36.03 326.30 50.00 2757.97 2950.00 36.93 326.30 50.00 2798.17 3000.00 38.23 326.60 50.00 2837.79 3050.00 39.44 327.30 50.00 2876.74 3100.00 41.32 327.20 50.00 2914.83 3150.00 41.98 327.30 50.00 2952.19 3200.00 42.01 327.50 50.00 2989.35 3250.00 41.91 327.80 50.00 3026.53 3300.00 41.89 327.80 50.00 3063.75 Vertical Section (f~) 129.75 142.62 155.45 168.39 181.48 194.61 207.86 221.36 235.22 249.64 264.84 280.93 297.80 315.32 333.60 352.50 371.76 391.27 410.83 43O.5O 450.56 470.90 491.95 514.12 537.25 561.33 586.39 612.44 639.28 666.77 695.04 724.11 753.82 784.30 815.65 848.04 881.26 914.71 948.14 981.53 Latitude ~/-S) (fO 119.13 130.99 142.84 154.79 166.86 178.95 191.t4 203.55 216.28 229.55 243.61 258.61 274.43 290.90 308.01 325.58 343.34 361.17 378.67 395.80 412.96 430.21 447.95 466.53 485.99 506.36 527.73 550.04 572.99 596.31 620.07 644.35 669.08 694.50 720.78 748.02 775.97 804.15 832.39 860.65 (~/-w) -54.14 -59.44 -64.67 -69.97 -75.36 -80.78 -86.27- -91.88 -97.65 -103.62 -109.79 -116.14 -122.66 -129.35 -136.45 -144.00 -151.90 -160.19 -169.09 -178.78 -189.17 -199.95 -211.28 -223.38 -235.91 -248.74 -261.83 -275.28 -289.21 -303.76 -319.08 -335.09 -351.58 -368.43 -385.53 -403.05 -421.03 -439.05 -456.94 -474.73 Total displ (ft) 130.86 143.84 156.80 169.87 183.09 196.34 209.71 223.32 237.30 251.85 267.21 283.49 300.59 318.37 336.88- 356.00 375.44 395.10 414.71 434.31 454.23 474.41 495.28 517.25 540.22 564.16 589.12 615.08 641.84 669.22 697.35 726.27 755.83 786.17 817.41 849.70 882.83 916.20 949.56 982.90 335.56 335.59 335.64 335.68 335.70 '335.71 335.71 335.71 335.70 335.70 335.74 335.82 335.92 336.03 336.11 336.14 336.14 336.08 335.94 335.69 335.39 335.07 334.75 334.42 334.11 333.84 333.61 333.41 333.22 333.01 332.77 332.52 332.28 332.05 331.86 331.68 331.52 331.37 331.24 331.12 Severity (de~JlO00 0.97 0.44 0.10 0.52 0.26 0.08 0.66 0.54 1.18 1.57 2.37 '2.21 1.84 1.51 2.29 0,85 1.14 0.79 2.47 1.71 1.66 0.24 3.48 2.30 2.74 2.27 3.07 2.32 1.99 2.01 2.76 1.99 1.80 2.63 2.57 3.76 1.33 0.27 0.45 0.04 Anaddll Schlumberger Page 2 7/13/98 Measured Station Station -~fation Vertical Depth Inclination Azimuth Interval Depth (ft) (deg) (deg). (ft) (ft) Vertical Section 3350,00 42,80 328,10 50,00 3100,70 1015.21 3400,00 44,47 328,60 50,00 3136,89 1049,71 3450,00 44,70 328,60 50,00 3172,50 1084,81 3500,00 44,55 329,00 50,00 3208,08 1119,93 3550,00 44,04 329,40 50,00 3243,87 1154,84 3600,00 44,06 330,00 50,00 3279,81 3650,00 44,70 330,30 50,00. 331524 3700,00 45,31 330,30 50,00 3350,89 3750,00 46,44 328,10 50,00 3385,71 3800,00 47,03 327,40 50,00 3419,98 3850,00 47,07 327,90 50,00 3454,04 3900,00 46,65 328,90 50,00 3488,23 3950,00 46,80 329,30 50,00 3522,51 4000,00 46,92 330,00 50,00 3556,70 4050,00 45,51 331,20 50,00 3591,30 4100,00 45,23 331,70 50,00 3626,42 4150,00 45,08 332,00 50,00 3661,68 4200,00 44,72 332,10 50.00 3697,10 4250,00 44,66 332,00 50,00 3732,65 4300,00 44,75 332,10 50,00 3768.18 1189,59 1224,54 1259,87 1295,75 1332,16 136896 1405,24 1441,64 1478,11 1514,17 1549,69 1585,06 1620,27 1655,35 1690,45 Latitude ~/-s) (ft) 889,19 918,56 948,52 978,57 1008,56 1038,57 1068,90 1099,62 1130,44 1161,23 1.192,15 1223,22 1254,46 1285,94 1317,39 1348,64 1379,90 1411,08 1442,14 1473,19 Departure (it) -492,61 -510,71 -528,99 -547,19 -565,07 -582,61 -600,01 -617,53 -635,91 -655,34 -674,92 -694,04 -712,74 -731,17 -748,89 -765,90 -782,63 -799,17 -815,65 -832,16 Total displ (ft) 1016,53 1050.99 1086,06 1121,16 1156,07 1190.83 1225,79 1261,15 1297,03 1333,39 1369,94 1406,40 1442,79 1479,28 1515,37 1550,95 1586,39 1621,67 1656,82 1691,98 At Azlm (deg) 331,01 330,93 330,85 330,79 330,74 330,71 330,69 330,68 330,64 330,56 330,48 330,43 330,40 330,38 330,38 330,41 330.44 330,47 330,51 330,54 4350,00 44,91 332,20 50,00 3803,64 1725,61 1504,35 -848,66 1727,22 330.57 4400.00 45,02 332,10 50,00 3839.02 1760,85 1535,59 -865,16 1762,54 330,60 4450,00 45,20 332,40 50,00 3874,31. 1796,18 1566,94 -881,66 1_797,94 330,64 4500.00 44,72 332,30 50.00 3909,69 1831,42 1598,23 -898,05 1833,26 330,67 4550,00 44.82 333,10 50.00 3945.18 1866,52 1629,52 -914,20 1868,45 330.71 1901,54 1936,19 1970,35 2004,36 2038,27 2071,95 2105,33 2138,83 2172,99 2207,36 4600.00 44.84 335,90 50,00 3980.65 4650,00 44,33 338,60 50,00 4016,26 4700,00 44,22 341,20 50,00 4052,06 4750,00 44,59 342,10 50,00 4087.78 4800.00 44,09 342.10 50,00 4123,54 1661,33 1693,69 1726,47 1759,67 1792,93 1903,62 1938,49 1972,97 2007,37 2041,70 2075,83 2109,68 2143,70 2178,39 2213,32 2248,06 2282,64 2317,24 2352,12 2387,52 -929,37 -942,95 -954,94 -965,96 -976,70 -987,23 -997,49 -1007,73 -1018,12 -1028,55 1826~04 1858,97 1892,06 1925,83 1959,82 4850,00 43,97 342,60 50,00 4159,49 4900,00 43,26 342,80 50,00 4195,69 4950,00 44,45 342,80 50,00 4231,75 5000,00 45,47 343,00 50,00 4267,13 5050,00 45,17 342,90 50,00 4302,28 5100,00 44,81 343,20 50,00 4337,64 2241,51 1993,64 -1038,85 5150,00 44,63 343,20 50,00 4373,17 2275,48 2027,32 -1049,02 5200,00 44,81 343,20 50,00 4408,70 2309,44 2061,00 -1059,19 5250,00 45,06 340,40 50,00 4444,10 2343,75 2094,54 -1070,22 5300,00 45,85 338,60 50,00 4479,17 2378,68 2127,91 -1082.70 330,78 330,89 331,05 331,24 331.42 331,60 331,78 331,96 332,14 332,31 332,48 332,64 332,80 332,93 333,03 Severity (deg/lO00 1,86 3,41 0,46 0,64 1,16 0,84 1~35 1,22 3,88 1,56 0,74 1,68 0,66 1,05 3,31 0,91 0.52 0,73 0,18 0.18 0,43 0.26 0.56 0,97 1.14 3,95 3,93 3,64 1,46 1.00 0L74 1,45 2.38 2.06 0,62 0.84 0,36 0,36 3,99 3,01 Anadrill Schlumberger Page 3 7/13/98 Measured Station Station Station Vertical Depth Inclination Azimuth InterVal Depth (ft) (deg) (deg) (f0 (ft) 5350.00 46.20 335.50 50.00 4513.90 5400.00 46.10 334.10 50.00 4548.54 5450.00 46.40 333,90 50.00 4583,11 5500.00 46.17 333.60 50,00 4617.66 5550.00 46.03 334.10 50.00 4652.33 Vertical Section (f0 2414.21 2450.02 2485.95 2521.91 2557.76 Latitude (~/-S) 2161.04 2193.66 2226.12 2258.54 2290.88 5600.00 46.39 334,00 50.00 4686.94 2593.66 2323.33 5650.00 46.71 333.90 50,00 4721.32 2629.77 2355,94 5700.00 46.45 333.90 50.00 4755.69 2665.90 2388.56 5750.00 46.42 334.00 50.00 4790.15 2701.94 2421.10 5800.00 46.86 334.10 50.00 4824.48 2738.10 2453.78 ~/-w) -1096.73 -1112.08 -1127.92 -1143.90 -1159.78 -1175.57 -1191.51 -1207.49 -1223.40 -1239.34 Total displ (ft) 2423.41 2459.45 2495.56 2531.70 2567.72 2603.81 2640.11 2676.42 2712.65 2749.00 5850.00 47.04 334,20 50.00 4858.61 2774.44 2486.65 -1255.30 2785.53 5900.00 47.13 334.30 50.00 4892.65 2810.85 2519.63 -1271.20 2822.14 5950.00 47.65 334.20 50.00 4926.50 2847.43 2552.77 -1287.19 2858.93 6000.00 47.65 333.90 50.00 4960.19 2884.19 2586.00 -1303.36 2895.88 6050.00 47.74 334.10 50.00 4993.84 2920.97 2619.23 -1319.57 2932.86 6100.00 47.81 333.90 50.00 5027.44 2957.80 2652.51 -1335.80 6150.00 47.66 333.80 50.00 5061.07 2994.61 2685.73 -1352.11 6200.00 47.12 333.80 50,00 5094.92 3031.23 2718.75 -1368.36 6250.00 47.23 333.80 50.00 5128.91 3067.72 2751.65 -1384.55 6300.00 47.56 333.50 50.00 5162.76 3104.35 2784.63 -1400.88 6350.00 47.74 333.60 50.00 5196.44 3141.14 2817.71 -1417.34 6400.00 47.73 333.50 50.00 5230.07 3177.97 2850.84 -1433.82 6450.00 47.74 333.30 50.00 5263.70 3214.81 2883.93 -1450.39 6500.00 47.71 333.40 50.00 5297.33 3251.65 2916.99 -1466.98 6550.00 47.37 333.50 50.00 5331.08 3288.38 2949.99 -1483.47 3324.98 3361.76 3398.91 3436.27 3473.82 3511.54 3549.28 3586.62 3623.48 3660.23 6600.00 47.31 333.90 50.00 5364.97 6650.00 47.94 332.50 50.00 5398.67 6700.00 48.33 331.60 50.00 5432.03 6750.00 48.51 330.10 50.00 5465.22 6800.00 48.90 327.60 50.00 5498.22 -1499.76 -1516.42 -1533.87 -1552.09 -1571.52 -1591.92 -1612.60 -1633.84 -1655.76 -1677.77 6850.00 49.03 326.90 50.00 5531.04 6900.00 49.03 326,70 50.00 5563.83 6950.00 47.77 324.00 50.00 5597.03 7000.00 47.59 323.30 50.00 5630.69 7050.00 47.47 323.40 50.00 5664.45 2982.95 3015.92 3048.81 3081.47 3113.62 3145.34 3176.93 3207.68 3237.46 3267.05 2969.88 3006.88 3043.68 3080.35 3117.15 3154.10 3191.10 3228.11 3265.10 3301.99 3338.76 3375.69 3412.92 3450.28 3487.73 3525.25 3562.77 3599.82 3636.30 3672.67 A~im 333.09 333.12 333.13 333.14 333.15 333.16 333,17 333.18 333.19 333.20 333.21 333.23 333.24 333.25 333.26 333.27 333.28 333.28 333.29 333.29 333.30 333.30 333.30 333.30 333.30 333.31 333.31 333.29 333.27 333.22 333.16 333.09 333.01 332.91 332.82 7100.00 47.27 323.50 50.00 5698.31 3696.90 3296.60 -1699.68 3708.98 332.73 7150.00 47.18 324.00 50.00 5732.27 3733.49 3326.20 -1721.38 3745.23 332.64 7220.26 46.90 322.40 70.30 5780.18 3784.75 3367.39 -1752.20 3795.99 332.51 7309.01 46.54 323.30 88.70 5840.99 3849.05 3418.86 -1791.19 3859.66 332.35 7405.36 48.06 323.90 96.40 5906.36 3919.68 3475.89 -1833.23 3929,70 332.19 Severity (de~J100O 4.52 2.03 0.67 0.63 0.77 0.73 0.66 0.52 0.16 0.88 0.46 0.23 1.05 0.44 0.35 0.33 0.33 1.08 0.22 0.79 0.39 0.15 0.30 0.16 0.70 0.60 2.42 1.55 2.27 3.84 1.09 0.30 4.76 1.10 0.28 0.43 0.76 1.71 0.84 1.64 Anadrill Schlumberger Page 4 7/13/98 Measured Station Station Station Vertical Depth Inclination Azimuth Interval Depth (ft) (deg) (deg) (ft) (ft) Vertical Latitude De~rture Total Section (N/S) (El-W) displ (ft) (ft) (ft) (ft) 7500,57 48,12 324,40 95,20 5969,95 3990,35 3533,31 -1874,72 7595,23 46,90 323,10 94,60 6033,85 4059,91 3589,57 -1915,96 7691,72 46,22 323,90 96,50 6100~1 4129,75 3645,89 -1957,64 7781,13 46,07 323,30 89,40 6162,15 4194,02 3697,78 -1995,90 7871,53 46,44 324,50 90,40 6224,65 4259,15 3750,54 -2034,37 324.30 90.10 6287.39 324.00 101.30 6358.58 324.40 98.80 6427.77 318.30 120.50 6512.55 319.10 93~60 6579.01 7961,58 45.29 8062,85 45,41 8161,70 45,69 8282,15 44,94 8375.81 44,59 8470,26 44,06 317,80 94,50 6646~1 8566,58 43,48 319,30 96,30 6716,15 8660,43 43,24 321,70 93,80 6784,36 8754,10 43,61 322,30 93,70 6852,41 8849,17 44,30 323,50 95,10 6920,87 8943,18 45,07 323,90 94,00 6987,70 9038,25 45,36 323,70 95,00 7054,62 9132,74 45,66 323,10 94.50 7120,85 9227,98 46,54 323,70 95,30 7186,93 9320,53 47,50 323,60 92,50 7249,99 4323.67 4395.~7 4465.93 4550.94 4615.96 4681L06 4746.75 4810.57 4874.62 4940.35 5006.26 5073,49 5140.68 5209,12 5276,58 3803.12 -2072.01 3861..54 ~ -2114.22 3918.74 -2155.48 3985.60 -2208.91 4035.12 -2252.41 4084,53 -2296,20 4134,46 -2340,30 4184,15 -2381,26 4234,90 -2420,92 4287,55 -2460,73 4340,82 -2499,86 4395.23 -2539.68 4449,35 -2579,88 4504,48 -2620,82 4558,98 -2660,93 3999,86 4068,89 4138,22 4202,04 4266,76 4330.93 4402L43. 4472.43 4556.79 4621.21 4685,72. 4750,87 4814,30 4878,03 4943,51 5009.19 5076.22 5143.20 5211.43 5278.72 332.05 331.91 331.77 331.64 331.52 '331.42 331~30 331.19 331.00 330.83 330,66 330,49 330,36 330,25 330,15 330,06 329,98 329.89 329,81 329,73 9413.11 46,96 323,10 92,60 7312,87 5344.33 4613,52 -2701,50 5346,28 329.65 9506,97 46,36 323,50 93,90 7377.32 5412,38 4668.28 -2742,31 5414,16 329,57 9601,06 46,90 322,10 94,10 7441,94 5480,49 4722.76 -2783,67 5482,09 329,48 9694.82 46.54 322,80 93,70 7506,17 5548,37 4776,84 -2825,25 5549,79 329,40 9788.86 45.80 322,80 94,10 7571,34 5615.96 4830.91 -2866,29 5617,23 329,32 9884.92 45.11 321.50 96.00 7638.68 5684.01 4884.93 -2908.27 9972.91 45.57 322.80 88.00 7700.54 5746.26 4934.36 -2946.67 10069.76 45.69 323.50 96.90 7768.30 5815.27 4989.79 -2988.21 10161.81 44.75 323.00 92.00 7833.10 5880.34 5042.11 -3027.28 10255.10 44.91 322.40 93.30 7899'.27 5945.82 5094.43 -3067.14 5685.12 5747,24 5816,13 5881,10 5946,48 6014.39 6081.13 6146.98 6212.10 6275.37 6334,25 6397,02 6455,82 6506,51 6564,46 10351,62 45,30 322,30 96,50 7967,38 6013,84 5148,56 -3108,90 10445,82 45,41 325,20 94,20 8033,59 6080,65 5202,60 -3148,52 10539,12 44,58 325,60 93,30 8099,56 6146,55 5256,90 -3185,98 10632,92 43,49 326,20 93,80 8167,00 6211,70 5310,88 -3222,53 10725,83 42,52 325,30 92,90 8234,93 6275,01 5363,26 -3258,19 325,10 88,00 8300,23 323,10 95,80 8372,43 323,60 93,80 8445,29 322,50 85,70 8514,22 322,80 102,40 8598,43 6333,92 6396,73 6455.58 6506,30 6564,30 5411.67 -3291.90 5462.65 -3328.86 5510.03 -3364.11 5550.73 -3394.71 5597.03 -3430.06 10813,76 41,67 10909,64 40,53 11003,44 37,52 11089,08 35,39 11191,51 33,96 329.23 329,16 329,08 329.02 328,95 328~7 328,82 328,78 328,75 328,72 328,69 328,64 328,59 328,55 328,50 Severity (degnO00 0,40 1,64 0,93 0,51 1,04 1.29 0.24 0.40 3.65 0.71 1,11 1,23 1,78 0,59 1.14 0.87 0.34 0.55 1,03 1,04 0.71 0.71 1.22 0.67 0.79 1.20 1.17 0.53 1.09 0.48 0,41 2,19 0,94 1,24 1.24 0,99 1,77 3,23 2,60 1,41 Anadrill Schlumberger Page 5 7/13/98 Measured Station Station st~'~on Vertical Depth Inclination Azimuth Interval Depth (ft) (dog) (dog) (ft) (ft) Vertical Section (ft) Latitude Cfi-s) (ft) Departure (fO 11288.79 31.32 323.60 97.30 8680.35 6616.58 5639.04 -3461.50 11378.16 28.63 323.40 89.40 8757.79 6661.10 5674.95 -3488.06 11470.64 27.36 322.80 92.40 8839.38 6704.30 5709.63 -3514.10 11567.77 24.22 324.30 97.20 8926.88 6746.45 5743.62 -3539.24 11662.83 22.96 324.30 95.00 9013.94 6784.38 5774.50 -3561.43 11755.44 22.09 324.50 92.60 9099.48 6819.78 5803.34 -3582.08 11850.05 21.24 323.60 94.70 9187.49 6854.65 5831.64 -3602.60 11943.41 20.78 324.80 93.30 9274.59 6888.02 5858.77 -3622.17 12037.26 19.98 323.40 93.90 9362.61 6920.64 5885.26 -3641.34 12133.38 19.61 324.10 96.10 9453.03 6953.09 5911.51 -3660.58 6973.33 7005.27 7027.78 9510.77 9604.78 9672.21 5927.99 5954.18 5972.74 12194.61 19.10 324.60 61.20 12293.88 18.48 325.40 99.30 Survey Projected To TD 12365.00 18.48 325.40 71.10 -3672.40 -3690.75 -3703.55 Total displ (ft) 6616.71 6661.20 6704.39 6746.52 6784.44 6819.83 6854.69 6888.06 6920.67 6953.11 6973.35 7005.28 7027.79 A~im 328.46 328.42 328.39 328.36 328.34 -328.32 328.29 328.27 328.25 328.23 328.22 328.21 328.20 SeveH~ (deg/lOOf) 2.75 3.01 1.41 3.30 1.33 0.94 0.96 0.68 1.00 0.46 0.88 0.68 0.00 Anadrill Schlumberger Page 6 7/13/98 BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 October 15th, 1998 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear AOGCC Representative, Attached are bluelines and sepias for well Niakuk 61. Per 20.AAC 25.537(d) BP Exploration would like these logs to be held confidential for 24 months. The specific attached logs include: Log Type Company Run Date CDR MD Schlumberger 6/27-7/10/98 ADN TVD Schlumberger 6/27-7/10/98 ADN MD Schlumberger 6/27-7/10/98 CDR TVD Schlumberger 6/27-7/10/98 Please contact me at 564-5126 if you have any questions. ,% Depths 77~-123~ 77 7757Y2~65 /~-123% Sincerely, CNS Greater Regional Opportunities MS Enclosures Please sign below and return to Marian SIoan, BPX, Mail Stop MB9-4 for receipt of transmittal. REoE~VE~ OCT q6 BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 October 6th, 1998 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear AOGCC Representative, Attached are bluelines and sepias for well Niakuk 61. Per 20.AAC 25.537(d) BP Exploration would like these logs to be held confidential for 24 months. The specific attached logs include: Log Type Company Run Date Schlumberger 7/11/98 Schlumberger 7/11/98 Schlumberger 7/11/98 Schlumberger 7/11/98 Schlumberger 7/11/98 Platform Express Den/Neu SSTVD Platform Express Comp Neu/GR Dipole Shear Sonic Tool (Field print) Platform Express Neu/Den/GR RFT Please contact me at 564-5126 if you have any questions. Depths 10000-12360 10OOO-12360 10000-12360 10OOO-1236O 10000-12360 Sincerely, David L. Boyer, Sr. Geologist CNS Greater Regional Opportunities MS Enclosures Please sign below and return to Marian Sloan, BPX, Mail Stop MB9-4 for r RECEIVED OCT 06 998 Oil & Gas Cons. (.;ommissi~ Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 August 12th, 1998 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear AOGCC Representative, Attached is core information for the following Niakuk wells. Per 20.AAC 25.537(d) BP Exploration would like this core data to be held confidential for 24 months. Analysis Type NK-61 Dry Cuttings NK-62 Core Analysis report NK-15 Core Analysis report Company Interval 10600-12337 Core Lab 11772-11949 Core Lab 20820-21194 Please contact me at 564-5126 if you have any questions. Sincerely, David Boyer, Sr. Geolog~ Greater Point Mclntyre Area RECEIVED MS Enclosures Oil & Gas Cons. C~ Anchorage Please sign below and return to Marian Sloan, BPX, Mail Stop MB9-4 for re ~ceipt,of transmi~)~ttal. TONY KNOWLE$, GOVERNOR ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 June 16. 1998 Lowell Crane Drilling Engineer Supervisor BP Exploration (Alaska) Inc. P O Box 196612 Anchorage, AK 99519-6612 Re~ Niakuk NK-61 BP Exploration (Alaska) Inc. Permit No. 98-114 Sur. Loc.: 1383'NSL, 901~VEL, Sec. 36, T12N, R15E. UM Btmhole Loc: 1955'NSL,4540'WEL, Sec. 25, T12N, R15E, UM Dear Mr. Crane: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill 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) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission mav witness the test. Notice mav be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. 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 O;--AND GAS CONSERVATION COMN,._¢SION PERMIT TO DRILL 20 AAC 25.005 la. Type of work [] Drill [] Redrill lb. Type of well D Exploratory [] Stratigraphic Test [] Development Oil [] Re-Entry [] Deepen []Service [] Development Gas []Single Zone D Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration (Alaska) Inc. Plan KBE = 59.7' Niakuk Oil Pool 3. Address 6. Property Designation P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 034630j 4. Location of well at surface 7. Unit or Property Name 11. Type Bond (See 20 AAC 25.025) 1383' NSL, 901' WEL, SEC. 36, T12N, R15E Niakuk At top of productive interval 8. Well Number Number 2S100302630-277 1889' NSL, 4491' WEL, SEC. 25, T12N, R15E NK-61 At total depth 9. Approximate spud date Amount $200,000.00 1955' NSL, 4540' WEL, SEC. 25, T12N, R15E 06/18/98 12. Distance to nearest property line113. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 034625, 3325'I NK-16, 10.02' at 200' MD 2560 12057' MD / 9385' TVD 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e)(2)} Kick Off Depth 500' Maximum Hole Angle 46° Maximum surface 3684 psig, At total depth (TVD) 9160'/4600 psig 18. Casing Program Specifications Setting Depth Size Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" 20" 94# H-40 Weld 80' Surface Surface 80' 80' 260 sx Arctic Set (Approx.) 12-1/4" 9-5/8" 47# L-80 BTC 6117' Surface Surface 6158' 5000' 2322 sx PF 'E', 410 sx Class 'G' 8-1/2" 7" 29# L-80 BTC-M 12018' Surface Surface 12057' 9835' 220 sx Class 'G' 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented MD TVD Structural Conductor Surface ~nrtoe~:lumcetid~ante R E C E IV E D Liner ,' ':.i 0'-' 1998 depth: measured Alaska 0:1 & Gas C0ns. O0mmission ORIGINAL Perforation Anchorage true vertical , 20. Attachments [] Filing Fee 'D Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program []Time vs Depth Plot [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Contact Engineer Name/Number: Scott Goldberg, 564-5521 Prepared By Name/Number: Carol Withey, 564-4114 21. I hereby certify that the forgoing,, is true~n~orrect to the best of my knowledge Signed Lowell C Titl_Le,_Drilling Engineering Supervisor Date ' ~,~_ Commission Use Only Permit Number APl Number I Approval Date See cover letter ~ ~ - I I'-f' 50- 0.3 '~/- ~ ~ ~ ~'..~~ ~' "' ! ~ -" ~ for other requirements Conditions of Approval: Samples Required []Yes [~,No Mud Log Required []Yes [:~No Hydrogen Sulfide Measures [~Yes [] No Directional Survey Required []Yes [] No Required Working Pressure for DOPE []2M; [] 3M; ~I, 5M; [] 10M; [] 15M Other: 0rJginal ,k;lgp. c. 0 ~), by order of ^ rom W. on t0, Oomm,ss,one , ecomm ,on Form 10-401 Rev. 12-01-85 Submit In Triplicate NK-61 Well Plan _ t -~ -~ Rev 0 NK-61 Well Plan Summary Surface Location: 1383' FSL 901' FEL Sec 36 T12N R15E Target Location: 1889' FSL 4491' FEL SeC 25 T12N R15E Bottom Hole Location: 1955' FSL 4540' FEL Sec 25 T12N R15E I AFE Number: I 731217 I Rig: ] Pool#7 I Estimated Start Date: I 6-18-98 I I Operating days: 9,385' I IMD: I 12,057' Type of Well (producer or injector): Well Design (conventional, slimhole, etc.): I ITVD: I IKBE: I 59.7' Producer Ultra-Slimhole Longstring Formation Markers: (all depths RKB' Measured True Vertical Formation Mud Formation Tops Depth, ft Depth, ft Gradient, ppg Weight~, ppg Base Permafrost 1890 1,860 8.552 8.8 SV3 4988 4,244 8.55 9.2 SV1 5852 4,846 8.55 9.1 Ugnu 6574 5,349 8.8 9.4 West Sak 8891 6,953 8.8 9.4 Colville 9447 7,338 8.80 9.4 Shale Wall 10951 8,403 8.80 10.8 HRZ 11552 8,915 9.40 10.83 Kuparuk 11817 9,160 9.7 10.8 TD 12057 9,385 9.7 10.8 1 Unless otherwise noted, the mud weights are based on a minimum: 125 psi overbalance, if the depth <5000' ss; and 150 psi overbalance, if the depth >5000' ss. 2 Seawater gradient assumed through the SV sands. 3 10.8 ppg is a result coming from Wellbore Stability Study. Value may change depending on ECD Considerations from Hydraulics and PWD. Desired Static Bottomhole EMW is 11.0 ppg 2 6-4-98--SG NK-61 Well Plan " --- Rev 0 Casingfrubing Program: (all depths feet RKB) Hole Size Csg/Tbg WtfFt Grade Conn. Length Top Btm OD MDfrVD MDfrVD 30" 20" 94# H-40 WLD 80 GL 80/80 12 1/4" 9 5/8" 47# L-80 BTC 6117 GL 6158/5000 8 1/2 7" 29# L-80 BTC-M 12018 GL 12057/9385 Tubing 3 V2" 9.3# L-80 IBT-Mod 11580 GL 11617/8974 Loggin_eJFormation Evaluation Program: Surface MWD/GR Production MWD/GR; CDR/ADN;/PWD Wireline: Schlumberger RFT Cased Hole Logs: Schlumberger USIT/Continuous Gyro/GR Mud Program: Surface Hole (0-6158'): Fresh Water Surface Hole Mud Interval Density Viscosity YP LSR YP Gel-10 sec Fluid (ppg) (seconds) Loss Initial 8.6-9.2 300-200 70-50 30-40 35-55 12-15 SV4 8.9-9.4 120-200 40-25 18-11 20-35 6-8 Interval TD 9.0-9.4 60-80 20-35 8-15 20-35 6-8 Production Hole (6158'-12,057'): Low Solids Non-Dispersed Interval Density Viscosity YP LSR YP pH Fluid (ppg) (seconds) Loss Initial 8.6-8.8 42-48 8-14 4-7 10.5-9.0 12-8 Ugnu 9.2-9.4 48-60 18-25 8-12 9.0-10.0 8-6 West Sak 9.2-9.4 48-60 18-25 8-12 9.0-10.0 8-6 Colville 9.2-9.4 48-60 18-25 8-12 9.0-10.0 _+4 Shale Wall 10.8 40-60 18-25 8-12 9.0-10.0 _+4 HRZ 10.8 40-60 18-25 8-12 9.0-10.0 _+4 Kuparuk 10.8 40-60 18-25 8-12 9.0-10.0 _+4 oEC '[VED Alaska Oil & 6a.s Cons, Commission AnchoraCe 3 6-4-98--SG NK-61 Well Plan ....... Rev 0 Cementing Program Hole Category Casing VolumeI Type of Cement Properties2 Size/Depth Surface First Stage 9 5/8" @ Lead3 Lead Lead 6,158' 560 sx Permafrost "E" Den 12.0 ppg 216 bbls Yield 2.17 ft 3/sx Water 11.6 gps TT 4.0 hrs Tail.4 Tail Tail 410 sx Class "G" w/ Den 15.8 ppg 84 bbls 0.2 % CFR-3, Yield 1.15 ft 3/sx 0.2 % Halad 344 Water 5.0 gps TT 3.5 hrs Second Stage Stage collar Lead5 Lead Lead_ @ 2,100' 1762 sx Permafrost "E" Same as above 681 bbls Production 7" @ 220 sx6 Class "G" w/ Den 15.6 ppg 12,057' 45 bbls 0.25% CBL Yield 1.2 ft 3/sx 0.75% Halad 344 Water 3.5 gps 0.4 % CFR-3 TT Batch mix + 0.38 % HR-5 4.5 + hrs Rounded up to the nearest 10 sacks. Thickening time required; actual times should be based on job requirements and lab tests. Open hole volume from top of tail to stage collar + 30% excess. 750' TVD open hole volume + 30% excess + 80' shoe joint. Open hole volume from stage collar to surface + 350% excess + casing capacity to stage collar. To 1000' MD above Kuparuk +50% excess + 80 ft shoe joint 4 6-4-98--SG NK-61 Well Plan - - - Rev 0 Directional: KOP: Max. Hole Angle: Close Approach Wells: Survey Program: 500' Begin build-l.5°/100 ft-build to 46 o @ 335° azimuth. Azimuth turn to 348° at 3914 46° (Tangent Angle) 4,800'-10,508'; Minimum Normal Distance--Survey-to-Survey NK- 15 20.19' @ 700' NK-16 10.02' @ 200' NK- 17 16.74' @ 400' Surface- 1,800' Gyro single shots 1,800' - 6,158' Single shot MWD surveys; if magnetic ....................................................... ...... 6,158' - TD MWD surveys Surface - TD Gyro--Gyrodata continuous mode Hole Cleaning: · Flowrate is the key parameter to hole cleaning. Field studies have shown that a "hurdle" exists on the low side of flowrate and diminishing returns exist on the high side. · This hurdle needs to be established so that ECD effects can be minimized in future ERD wells. This flowrate is estimated to be 450-500 gpm. Use PWD and especially torque and drag monitoring to attempt to find this "hurdle" rate. · Pipe rotation is critical for effective hole cleaning. The preferred surface speed is 100-120 rpm. · Check with Directional Driller and MWD Engineer to find maximum rotary speed of tools while circulating · The term "Bottoms Up" is somewhat meaningless for ERD wells, since the cuttings will move much slower up the hole than the fluid. To circulate bottoms up before tripping will not clean the hole. You will simply shift the cuttings or worse, create a dune up the hole. Usually it takes 2 sometimes 4 bottoms up to clean the hole. BP's recommended circulation is a minimum of 2 V2 bottoms up. When circulating & reciprocating for extended periods pull one stand per hour to minimize the effects of circulation on a single area. On past wells we have seen significant hole enlargement in areas where repetitive circulation and reciprocation was used. This will create a zone of low annular velocity and therefore a place for cuttings to settle. These cuttings will pose a serious pack off threat later in the well. · Remember that a clean hole for drilling and a clean hole for tripping are quite different. · Monitor hole cleaning at all times by comparing S/O, P/U, Rotating Weight and Torque readings to predictions provided by Operations Drilling Engineer. Remember that when taking the readings, the comparison will not be accurate unless the P/U and S/O are taken with out pumps. · When tripping out of hole and a tight spot is encountered, assume that the fight spot is cuttings. RIH until the BHA is clear of the tight spot. Circulate and rotate for 30 minutes. POOH. If the tight spot has disappeared or moved up hole, then the tight spot was most likely cuttings. If the tight spot is in the same place, then it is likely a formation condition 5 6-4-98--SG NK-61 Well Plan '-- ..---~ Rev 0 and back reaming should be applied. If backreaming is necessary, use flowrates similar to that used while drilling. Do not backream at a low flowrate. Drilling Hazards/Risks Reservoir Pressure Segment 1, which this well will penetrate has been on a waterflood program injecting at 20,000 BWPD. Because of this, the expected reservoir pressure for the Kuparuk formation is expected to be 4600 psi @ 9160' TVD. This is an Equivalent Mud Weight of 9.7 ppg. Lost Circulation/Faults The Niakuk bounding fault is expected to be crossed in this well. In addition there are a large amount of smaller faults "below" the target. The directional plan is designed as a S-Shape well to go over this faulted section. Close Approaches Close approach issues will be of critical importance on this well. NK-61 is designed to go right through the main corridor of Niakuk drilling. There are close approach wells both shallow and deep. The current directional plan passes all appropriate Anti-Collision rules. Formations Expect to have full sections of the Tuffs and HRZ. Both formations have shown hole instability potential in the past. Mud weight will be increased and shale stability treatments will be performed as needed. Well Control: Well control equipment consisting of 5000 psi WP pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and mud fluid system schematics on file with AOGCC. Contacts: Office Home Pager SSD Drilling Superintendent Dan Stoltz 564-4922 345-9066 275-4570 Engineering Supervisor Lowell Crane 564-4089 868-7711 275-8644 Operations Drlg Engrs Scott Goldberg 564-5521 345-4925 275-4365 Asset Drilling Engineer ARCO GPMA Contacts Production Engineer Bob Gerik 564-5494 Geologist Dave Boyer 564-5126 Geophysicist Martin Novak 564-4894 Geoscience Manager Barry Cohn 564-4273 6 6-4-98--SG NK-61 Well Plan -- .~-~ Rev 0 Brief Summary Move rig to NK-61. NU diverter Directionally drill 12 tA" surface hole to section to TD at 6,158' MD. Run and cement 9 5/8" surface casing with 2 stage job. Ensure cement to surface. ND diverter NU B OP's and test. Notify AOGCC 24 hours in advance to witness test Drill 8 1/2" hole to well TD at 12,057' MD Run open hole logs Run and cement 7" intermediate casing Run cased hole logs Run 3 V2" single completion with tail set into liner Secure well; RDMO Post Rig Work Perforate as per asset requirements 7 6-4-98--SG Anadrill Schlumberger Alask~ District llll East 80th Avenue Anchorage, AK 99518 (90?] 349~45[1 Fax 344-2160 DIRECTIONAL WELL PLAN for S}{AR~D SERVICES DRILLING Well ......... : NK-61 (P4) Pield ........ : Niakuk, Main Pad Computation..: Minimum Curvature Units ........ : FEET Surface Lat..: 70.34741866 N Surface Loag.: 148,20042083 W Legal Description Surface ...... : 1383 FSL 90[ FEL Target ....... : 1889 PSL 449[ FEL B~{L .......... : 1955 FSL 4540 FEEL LOCATIONS - ALASKA Do~e: R X-Coord ¥-Coord S36 T12N RiSE UM 721660.01 5979921.52 S25 T12N RL5E UM 717900o00 5985600.00 S25 T12/~ RL5E LTM 717849.16 5985664.20 PROPOSED WEI~L PROFILE STATION /DENT[F/CATION K0P 1,5/[00 BUILD MEASURED INCL~ DIRECTION DEPTH ANGLE AZIMUT~t 0.00 0.00 0-00 500.00 0.OO 336.00 600.00 1.50 335.00 700.00 3.00 33~.00 BO0.O0 4.50 335.00 VE/~T I CAL-DE~TI{9 SECT/ON TUD SUB- ~EA DEPART 0.00 -59.70 0,00 S00.O0 440.30 0.00 599,99 540.29 1.30 699,91 640.21 5.20 799,69 ?~9.99 11.69 Prepared ..... : 03 Jun 1998 Vert sect ~z.: 328.14 KB elevation.: 59.70 ft Magnetic Dcln: +28.264 (El Scale Pactor.: 0.99995581 Convergence..: +1.69481545 ANADRILL AKA-DPC APPROVED FOR PERM[TI'lNG ONLY PLAN O00RDI~ATES-FROM ALASKA Zone 4 TCOL DL/ WEL//{EAD X Y FACE O.OO N 0.00 E 721660.01 5979921.52 2EL 0.00 O.OO ~ 0.00 E 721660.01 5979921.52 25L O.OO 1.19 N 0.55 Iq ~21659.42 5979922.69 2~L 1.50 4,74 N 2.21 ~ ~216~7.66 5979926.20 25L ~.50 10,67 N ~.~B ~ 721654.72 5979932.04 25L Z.SO CURVE 1.5/S00 900,00 6~00 335.00 I000,00 7.50 335.00 ~100,00 9.00 335.00 t200,O0 10.50 335.00 [300,00 12.DO 335.00 899.27 B39.57 20.77 998.57 93B.B7 32.4~ 1097.54 L03?.B4 46.69 1196.09 1~3G.39 63.50 1294.16 1234.46 82.87 18,96 N 8.B~ ~ 721660.61 5979940,21 IdS 1.50 29,62 X 13,B1 ~ 721645.3~ 5979950.71 ~S 1,50 42,6~ N 19.87 ~ $21638.88 5979963.53 HS 1.50 57,97 N 27.03 ~ 72~631.28 5979978.66 HS 1.50 75.65 N 35,28 ~ 721622.$1 5979996.09 HS 1.50 14oa.oo $3.50 335.00 1500,0O 15.00 335,00 1391.70 1332.00 104.78 1488.62 142~.92 129.22 95,65 N 44,60 W 721612.60 59BOO15.81 HS 1.50 117,96 N 55.01 ~ 721601.54 528003?.80 ~S 1,50 (AnadriLl (c)98 NK61P4 3.2C 12:1{ PM P) k3 STATION [DENTIFICATr0N BASE PER]~AI=ROST CYRVE 1.7~/100 E~D L.75/100 CURVE CUParS 5.5/[O0 MI~ASUREO [NCLN DEPTR AMGLE [600,00 16.50 LT00.OO 18.00 kSO0.O0 19,50 [860.00 20,40 1890,14 20.40 [925,00 20.40 2000.00 21.67 2[00.00 23.36 2200.00 25.06 2300.00 26.77 2400,00 28.48 2S00,00 30.20 2600.00 31.92 2700.00 33.64 2800.00 35.37 2900.D0 37.09 3000.00 38.82 5100.00 ~0.$5 3200,00 42.28 3300,00 4~.02 3337,34 44.66 3913.93 44.66 4000.00 44.62 4L00~00 44.60 4200.00 44.63 4300.00 44.70 4400.00 44.80 4500.00 44.94 (Anadrill (c}98 NK61P4 3.2C ~2:14 PN P) PROPOSEO WELL PROFILE D[RECTIO~ V~R~CAL-DE~THS SECT[ON AZIMUTH TV]) SUB-S2Uk DEPART ==== ..... =====~== ..... = 335.00 1564.86 1525.16 156.17 335.00 1680.36 1620,66 185.61 335,00 1775.05 1715.3S 219.52 335.00 183L.45 1771.7S 237.85 335.00 1859.70 1800.00 248.28 335.00 334.03 332.$9 331.89 331.02 1892.37 1832.67 1962.37 1902.67 2054.75 1995.05 2145.95 2086.25 2235.69 2176.19 3~0.24 2324.49 1264.79 329.54 2411,66 2351.96 328.91 2497,32 2437.62 328.34 2581,39 2S21.69 32~.82 2663.80 2604.~0 327.3~ 326.90 326.49 326.11 325.76 2744.46 2684.76 2823.31 2763.6L 2900.26 2840.56 2975.24 2915,54 3048.20 2988.50 32S.63 325.63 327.46 329.60 331.73 3074.90 3015.20 3485.00 3425,.30 3546.24 3486.54 3617~43 3557.73 367S-62 3628.92 333.87 335.99 338.11 3759.75 3700.05 3830.78 3771.08 3901.65 3841.95 03 JUn 1998 Page 2 260.34 257.09 325.22 366.~1 409.74 456.06 505.0~ 556.62 6S0.75 667.40 726,49 787,99 851,82 9i~.94 1012.35 1417.27 1477.72 I547.9S 1618.]1 [688.16 1758.05 1827.7( COORD I ~IATES - FRO~ WELLMEAD ======:=== ........ ALASKA Zo~ 4 TOOL DL/ X Y FACE I00 142,56 N 66.48 W 169.43 N 79.01 W ]98.67 N 92.59 W 217.12 N 101.24 W 226.6~ N 105.69 W 721589.35 5980062,04 HS 1.50 721576.03 5980088.54 HS 1-50 $2176[.59 5980117.25 HS 1.50 721552.39 5980235.54 KS 1.50 ~21747.67 5980144.9~ ES 0.00 237.65 265.95 296.19 ]32.52 370.91 [~0.$2 W $21542.2~ 5980155.78 16L O,OO 122.4[ W 7215~9.9~ 5980179.72 i~L 1.75 139.53 W 721511.79 5980253.44 14L L.75 158.54 W 721491.71 5980249.19 13L [79.~4 W 721469.69 ~980286.94 12L 411.31 453.69 498-0[ 544.23 592.3L 202.19 W 721445,76 5980326.6~ 12L L.75 226.77 W 72~419,93 5980368.29 11L L.?5 253.17 W 721392.23 $9~0411.81 27[.36 W 721362.69 59SD457.17 10L 1.75 ]1~.31 W 72L~1.~3 5950504.34 9L 1,75 642.20 693.8~ 747.22 8~2.26 858.91 343.00 W 721298.19 5980553.27 9L 1.75 376.39 N ~1263.29 5980603.91 9L 1.75 411.45 W 721226.66 5980656.21 BL 1.75 448.15 W 721[88.55 5980710.13 8L 1.75 486.46 ~ 721148.58 5980765.62 8L 1.75 880.46 1215.00 1265.45 1325.35 501.L7 ~ 721133.04 5980786.74 HS 1.75 730.00 W 720894.43 5981114.35 93R 0.00 763.34 W 720859.6[ 5981163.$9 9[R 1.50 800.00 W 7208~1.20 5981222.57 90R 1.50 834,40 W 72078S,01 5981282,75 87R 1.50 1449.09 1577.8[ 666.52 W 720751,~$ $96134~,27 87R [.50 $96.35 W 720719.35 5971407.13 85~ 1.50 ANADRtLL AKA-O?C APPROVF, D FOR P£RMITTiNG ONLY, Z STA? I 0~; I DE}VEl FI CAT/ON SV4 PROPOSED ;;~LL PROF!LE E~'m 1.5/100 CtTRVS 1.5/tO0 b1EASURED I NCLN D I RECTION DEPTK ANGLE AZ IM]/IS{ 4515.62 44.97 338-4¢ 4600.00 45.I3 340.21 4700.00 45.35 342.30 4500.00 45.61 344.38 4900.00 45.90 346.43 TT6/SVl 4970.41 46.13 4987.95 46.13 5256 . 78 46 . 13 5300.00 46.04 5400.00 45.86 ~o-3/4, csg ~ ~11> 5500.00 15.71 5600.00 45.60 5700.00 45.53 5800.00 45.50 5852.02 45,50 z~,;'D t. 5/lOO CU~'tr~ UG4A NEST SAK 5900.00 45,51 6000.O0 45,55 6100.00 45,64 6157.73 45,70 6200.00 45,76 6300,00 65.92 6400,00 46.12 6432.63 46.19 6573,86 46.19 8890,83 46.Z9 C~3 9446-96 46.19 DROP 2/100 10507.96 46.19 10600.00 44.35 (Anadrill (c)9~ ~K6194 3.2C ~2:14 PI~ PI 03 Jun 1998 Page 3 VERTICAL-DEPTHS TVD SUg-SEA =_-====== ...... = ....... SECT ION COORDINATES - ~ROM DE PART WELLB~J~D 3912,70 3883.00 3972.32 3912.62 4042,7~ 3983.04 4112.87 4053.~? 4182,65 R122.95 1838.61 1588.06 N 927.94 1597_18 1643.93 N 949.02 1966.32 1711.~6 N 97~.~3 2035.12 [779.45 N 992.26 2~03.52 1848.77 N 1010.31 ALASKA Zo~e 4 Y 720685,55 59814~1.3~ 720662,83 5981536.59 720638.04 59~1603.11 720615.60 5951670.77 720595.51 595L739.52 TOOL gL/ FACE 100 84R 1.50 82R 1.50 8LR 1.50 79R 1.50 78R 1,~0 347.86 34~.86 34~.86 346.97 344.9~ 4231,55 ~171.~5 4243.70 4184.O0 4430.00 4370.30 445~.97 4400.27 4529.51 ~469.81 2151.42 2163.32 2345,76 2375 . ~4 2443.57 1898.16 N 1D21.55 W 720582.78 5981788.55 1910.52 N 1024.24 W 720579.76 5981800.83 2100.00 N 1065.00 W 7205~3.42 5981989.01 2130.58 N 1071.78 W 720525.74 5982019.18 2200.09 N 1089-25 W 720506.22 5982088.34 ~L~ 1.50 ~S O.0O 9BL 0.00 981 1,50 961 1,50 342.82 340.72 338.63 336.52 335.43 4599.25 4539.85 4669.15 4609,45 4739.16 4679.~6 4809.24 4749.54 4845.70 4786,00 2812.55 2582.04 2652.00 2722.37 2759.13 2268.93 N 1109.17 2336.85 N 1131.54 2403.80 N 1156.34 2469.75 N 1183.55 2503.64 N 1198.66 720484.27 5982L56.55 951 1-50 720459.90 5982223.?8 931 1.50 720433.~4 59822~9.97 92L 720403.98 5982355.0~ 901 1.50 720387.~8 5982388.~0 901 1.50 334.42 332.32 330.22 329.02 328.13 48~9.~3 4819,63 4949.35 ~889.68 5019.86 4959,66 $059.70 5000.00 5089.2~ 5029-51 2793.11 2864-16 2935.49 2976.77 3007.04 2534,63 N 1213.16 W 720372.47 5982419.05 891 ~.50 2598,42 N ~245.I5 ~ 720338.62 5982481.86 881 1.50 2661.05 N ~279.48 ~ 720302.44 5982543.45 861 1.50 2696.68 N ~300.37 ~ ~20250.52 5982575.44 851 L.50 2722.~1 ~ 5316.~5 W 720263.98 5982603.79 851 ~.50 326,05 515~-~ 5099.18 3078.76 323.99 5225.33 5168.63 3150.60 323.32 5250.93 5~91.23 3174.06 323.32 5348.70 5289.00 327S.61 323.32 6952.70 6893.00 4941.69 2782.73 N 1355,12 W 720223.25 5982662,$3 831 2841o68 N I316.36 W 720180.28 5982720,53 821 L.50 2860.63 N 1430,31 W 720165.77 5982739,06 H$ L-50 2942.16 N 1471.~9 W 720102,$O 5982818,95 HS O.O0 4283.22 N 2470,02 W 719064.50 5984129,62 ~S 0.00 323.32 323,32 323.32 7337,70 7278.80 8072,21 8012.51 8136,98 8077.28 5341.59 610~ .52 6~69 4605.05 N 2709.77 W 7~8815,35 5984444.21 HS 0.00 $2Z9.06 N 3167.16 W 718340.02 s985044.39 LS O,O0 5271-50 ~ 3206.22 W 718299,43 $955095.65 LS 2,00 ANADRILL ,A[<A-DF'-C APF.ROV D FOR PERMiT ,'!, . ON ]> Z PROPOSED ~ELL DROFILE STATION I SENTI K-5 MEASUR_ED INCLN DIP~ECTION DEPTH AI~GL~ kZI~3TH 10~00.00 42,35 323.32 10900.00 38.35 323.32 10951.42 37.32 ~23.32 11000.00 36,35 323.52 VERTIC_kL- 0MPTHS SECTION TVD SUB - SEA DEPART 8209.70 8170.00 6238.~8 8284.77 8225.0? 6303.9~ $36~.09 8302.39 6367.08 8402.70 8343.00 639~.50 ~441.59 8381.89 6427.53 11100.00 34.35 11300.~0 30.35 11400.00 ~8.35 11500.00 26.35 323.32 323.32 323.32 323.32 323.32 8525-15 8463-45 6465.17 8606.68 8546.98 6539.95 ~692.07 8632.3V 659~.q9 6779.24 8719.54 6640.62 8868.05 8~08.35 6686.~O 03 JUn 1998 Page 4 COORDI~ATES-PROM AI~kSKA ~on~ 4 53~6.54 N 314V.22 W 718256.82 5985149.45 5379.52 N 3286.67 ~ q17215.81 5~87~D[.24 5430.36 N 3324.56 W 718176.45 5~85250.94 5455.65 N 3343,~0 W 718156.87 5985275.66 5~79.01 N 3360,80 W 7~81~8,~9 5985298.49 5525.41 N 3395,36 W 7~8102.8~ $985343.84 5569.%9 M 3428.20 W 71B068.75 5985386.93 5611.21 N ~459,27 W 7~8036.45 S985427.~1 5650.51 N 3488,55 W 718006.02 5985466.13 5689.35 N 3515.99 W 717977,51 5985502.14 TOOL Db/ FACE LS 2.00 55 2.00 LS 2.00 LS 2.00 L~S 2.00 ~ 2.00 ~ 2.00 I.,,9 2.00 ~ 2.00 LS 2.00 TOP 2/100 O~OP ~551.B2 25.3l 1~600.00 24,35 11~00.00 22,35 llB00.00 20.35 1181~.4i 20.00 TA3{G~T **"***'****** 11817.4[ 20.00 ~i'~2)P KUPARUK 11817.4~ 20.00 ~ 2~5/$" CS~ ~<{]> 12056.85 20.00 323.32 891~.70 8855.00 6708.90 323.32 8958.~2 S$98.72 6729.05 323-32 9050.23 8990.53 6760.5~ 323.32 9143.36 9083.66 6804.82 323.$2 9159.~0 9T00.00 6810.80 323.$2 9~59.~0 9100.00 6810.80 323.32 9384.~0 9327.00 6892.{0 5705.46 N 3529.48 W 5721.68 N 3541,57 W 5753.46 N 3565,24 W 5782.65 N 3586,99 W 5787.47 N 3590.57 W 7Z7963.49 59~5519.84 LS 2.00 7Z7950.93 5985535.69 ~ 2.00 717926,33 5985566.96 LS 2.00 7~7903,73 5985595.29 1-~ 2.00 7Z7900,00 $9S5600,00 HS 2.00 5787.47 N 3590,57 W 7Z7900.00 $975600.00 H8 2.00 5787.~7 N 3590,57 W 7~900.00 5985600.00 HS 2.00 5853.14 N 3639.50 W 7Z78~9.16 $97566~.20 O.OO (A~ack'ill <c)98 NK61. P4 ,3.2C 12:14 P>} P) '-0 C) 06/03/1998 14'17 907-344-2160 ANADRILL DPC PAGE 07 ., SHARED SERVICES DRILLING -- , · ~nll~lln A) KB 0 0 N 0 E .~ ~op ~.~/~oo~.z.. ~.o oN o~ /__% PLAN VIEW D) ENO 1,5/100 CURVE 1860 2t7 N ]01 E) CURVE 1.75/~0D ~925 238 N JJi W CLOSURE ..... : 6892 feet at Azimuth 328,~3 F) ENO ~.75/~00 CURVE 3337 880 N 50~ 6) CUR~ ~,5/100 39t4 12~5 N 730 ~ DECLINATION,' +28.264 (E) H) END 1.5/100 CURVE 4970 ~898 N ~022 W SCALE ' J inCh : ~000 feet Ii CuRvE ~.5/JO0 ~257 2~00 N t055 d) Jo-3/4" cs6 PT <11> 6~58 2697 N t300 N DRAWN ' 03 Jun J998 K) END 1.5/~00 CURVE 6a33 286~ N ~a~O L) DROP 2/JO0 t050B 52~9 N 3~67 N) ENO ~/tO0 DROP t~8~7 5787 N 359~ O) TD 7-5/8" CSG PT<l I> i2057 5853 N 3639 , ~ - -6500 Tar ]-eft- ................ 5000  ............ 4500  ~000  3500 3000 '. FOIL ~ ,.,, '~ "J ~ 2000 i . ~ H ...... tooo . --500 6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 ~500 lO00 5~9 0 500 <- NEST' EAST -> SHARED SERVICES DRILLING °- J VERTICAL SECTION VIEW Section at: 328.14 c-= fVO Scale.- 1 inch = 1200 feet o ~ .... Oep Scale.' 1 inch = J200 feet Drawn · 03 Jun 1998 °i...... ~'~-~ ~c~~"~r~ ,~ /radii ........ ]1 Schlumberge£ Marker Identification ND BKB SECTN INCLN o .............. A! KB 0 0 0 0,00  §) KOF 1,5/100 BUILD 500 500 0 0.00 C) CURVE i.5/lO0 1000 999 32 7,50 ~-- B) END 1.5/100 CURVE 1860 1831 238 20.40 E] CURVE ~,7§/100 19~5 1892 250 20.40 ;~ F) END 1.7§/100 CURVE 3337 3075 1012 44,66 ) G) CURVE 1.5/100 39t4 3485 ~4~7 44.66 ....... H] ENO ~.§/1OO CURVE 4970 4232 21§1 46.13 I) CURVE ~,5/~00 5257 4430 2346 46.J3 ~- ~ ~ J) 10-3/4" CSG PT <II > 6~S8 5060 2977 45.70 )-"s'-='-v3 ~''-"=~=~" ...........~ K) END t,5/JO0 CURVE 6433 525~ 3174 J6,19 L) DROP 2/t00 t0508 807~ 5105 ~6.19 i~ M] END 2/t00 DROP 11817 9~6D 68tl 20.00 N) TARGET ~~~ 11817 g~60 6811 20.00 ) ~B~F~- ~ - -~ 0) TO 7-5/8" CSG PT<II > t~057 9385 689~ 20.00 . x-s e.o3 ANAl)RILL A~.--D PC Oiq ............. 7,/..~ ~ n L~...~.. ..................... ~. ........ ~ .................. - ........ ....... I 11 0 600 1200 1800 2400 3000 3600 4200 4800 5400 6000 :-:- 6600 7200 Section Departure ... DATE H 13 4 3 91 o~,-' ._ VENDOR A_.ASK, DATE INVOICE / CREDIT MEMO DESCRIPTION GROSS DISCOUNT 021798 CKO21798N .tOO. O0 HANDLIN(~ INST- s/h kathy campoanoT- x 5122 THE ATTACHED CHECK IS IN PAYMENT FOR ITEMS DESCRIRI;I3 Army=: · WELL PERMIT CHECKLIST COMPANY ~ ~ ')t. WELL NAME ,/~/'~ - (~ f PROGRAM: exp [] dev,~ redrll [] serv [] wellbore seg II ann. disposal para req II FIELD & POOL INIT CLASS D(~ O I - ~' i GEOL AREA.. ~ ~ 0 UNIT# ! I ~ ~-'~ ON/OFF SHORE ADMINISTRATION /~,~R DATE ,, 1. Permit fee attached ....................... 2. Lease number appropriate ................... 3. Unique well name and number .................. 4. Well located in a defined pool .................. 5. Well located proper distance from drilling unit boundary .... 6. Well located proper distance from other wells .......... 7. Sufficient acreage available in drilling unit ............ 8. If deviated, is wellbore plat included ............... 9. Operator only affected party ................... 10. Operator has appropriate bond in force ............. 11. Permit can be issued without conservation order ........ 12. Permit can be issued without administrative approval ...... 13. Can permit be approved before 15-day wait ........... ENGINEERING APP_R.,: DATE 14. Conductor string provided ................... 15. Surface casing protects all known USDWs ........... 16. CMT vol adequate to circulate on conductor & surf csg ..... 17. CMT vol adequate to tie-in long string to surf csg ........ 18. CMT will cover all known productive horizons .......... 19. Casing designs adequate for C, T, B & permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a re-drill, has a 10-403 for abandonment been approved... 22. Adequate wellbore separation proposed ............. 23. If diverter required, does it meet regulations .......... 24. Drilling fluid program schematic & equip list adequate ..... 25. BOPEs, do they meet regulation ................ 26. BOPE press rating appropriate; test to ~z:P~ psig. 27. Choke manifold complies w/APl RP-53"(May 84) ........ 28. Work will occur without operation shutdown ........... 29. Is presence of H2S gas probable ................. GEOLOGY /~R DAIE . 30. Permit can be issued w/o hydrogen sulfide measures ..... 31. Data presented on potential overpressure zone_s. ....... ~-.-:--':'"":'"; ......... Y N 32. Seismic analysis of sha?..ow..gas~.ones:-.-"-~"-i-'~-. ....... Y N 33. Seabed condit~j]~y (i~off-shore) ............. Y N 34. C~phon,e.for weekly progress reports ....... Y N ~ lexplora~ory oniyj ANNULAR DISPOSAL APPR DATE 35. With proper cementing records, this plan (A) will contain waste in a suitable receiv~.g, zorre':," . ...... Y N (B) will not contaminate freshwate.~ause drilling waste... Y N to surface; ~,..--~ (C) will not impair m~al integrity of the well used for disposal; Y N (D) will not da~ producing formation or impair recovery from a Y N pool; am3 (E) will not circumvent 20 AAC 25.252 or 2.,0 AAC 25.412. Y N GEO!~_G_Y: E N GIN__E.. F_~ LN_~: ,UIC,/~ular COMMISSION: J D H ~7..."-~ /~'~' RNC ~ co '(.:.o Comments/Instructions: M:chet~list rev 05/29/98 dlf: C:\rnsoffice\wor diarq\dial~a\(;hecklisl