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Home My WebLink About189-052 1 a. Well Status: DOil DGas D Plugged 181 Abandoned D Suspended DWAG 1 b. Well CI~norage 20AAC 25.105 20AAC 25.110 181 Development D Exploratory DGINJ DWINJ D WDSPL No. of Completions Zero Other D Stratigraphic D Service 2. Operator Name: 5. Date Comp., Susp., or Aband. 12. Permit to Drill Number BP Exploration (Alaska) Inc. 7/2/2006 189-052 306-193 3. Address: 6. Date Spudded 13. API Number P.O. Box 196612, Anchorage, Alaska 99519-6612 05/13/1989 50-029-21945-00-00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached 14. Well Name and Number: Surface: 05/31/1989 PBU Z-26 721' FNL, 3108' FEL, SEC 19, T11N, R12E, UM 8. KB Elevation (ft): 15. Field I Pool(s): Top of Productive Horizon: 3325' FSL, 710' FWL, SEC 17, T11N, R12E, UM 89.47' Prudhoe Bay Field I Prudhoe Bay Total Depth: 9. Plug Back Depth (MD+ TVD) Pool 3400' FSL, 1217' FWL, SEC 17, T11N, R12E, UM 11523 + 8951 Ft 4b. Location of Well (State Base Plane Coordinates): 10. Total Depth (MD+TVD) 16. Property Designation: Surface: x- 599564 y- 5959360 Zone- ASP4 11850 + 9115 Ft ADL 028262 TPI: x- 603312 y- 5963457 Zone- ASP4 11. Depth where SSSV set 17. Land Use Permit: Total Depth: x- 603819 y- 5963539 Zone- ASP4 N/A MD 18. Directional Survey DYes 181 No 19. Water depth, if offshore 20. Thickness of Permafrost N/A MSL 1900' (Approx.) 21. Logs Run: DIL I BHC I CNL I GR 22. CASING, LINER AND CEMENTING RECORD < .....:<.:. ...:······i. :J:Xi;;¡~~[~/'::' i.' 'i:' ...,; :':l' ,.,;:::<:. ...:. ii:>ii!i~,4ð!ii xxii tAi. Gi';;;' i:i ."fòP.;.;; BbriÒM ··;·T....; .s,zå¿ t-4,,,i <; :i.:"'¿. i< ii:;»:i:.. :i;O';', ¿..;,¿:;. VVI < 20" Conductor Surface 110' Surface 110' 13-3/8" 68# L-80 Surface 2622' Surface 2622' 17-1/2" 3684 cu ft Permafrost 9-5/8" 47# L-80 Surface 10986' Surface 8599' 12-1/4" 2365 cu ft Class 'G' 7" 26# L-80 10739' 11850' 8419' 9115' 8-1/2" 368 cu ft Class 'G' 23. Perforations open to Production (MD + TVD of Top and :24:i»/ x:: ·'.:»::ii<:·:.:iCi. .;·....:X: i...;... ')...... ': it.·:·:·: :.... ::':: :.:i:..:':: : Bottom Interval, Size and Number; if none, state "none"): SIZE DEPTH SET (MD) PACKER SET (MD) None 4-112", 12.6#,13Cr 10793' 10653' MD TVD MD TVD !2~.:': 'i:: . ·.ti · .'." i;.,. ;",l'i Yii iii·· i: ..:ii>iJ:/;:/i/i>i:;:/¿ii;¿:: .i< :. '., DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11385' Set Whipstock ;·""!C¡~.111~Gf ÞUG Q íiLQDß 11375' P&A wI 22.5 BBls Class 'G' cement ~ . _ ,'.'" J" ....-.,."" . .' ',. c." 26. PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): Not on Production N/A Date of Test Hours Tested PRODUCTION FOR Oll-Bsl GAs-McF WATER-Bsl CHOKE SIZE I GAS-Oil RATIO TEST PERIOD ... Flow Tubing Casing Pressure CALCULATED Oil -BSl GAs-McF WATER-Bsl Oil GRAVITY-API (CORR) 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". None . STATE OF ALASKA . RECEIVED ALASKA OIL AND GAS CONSERVATION COMMISSION AUG 0 4 2006 WELL COMPLETION OR RECOMPLETION REPORT AND LOG Alaska Oil & Gas Cons Com . . . mISSIon Form 10-407 Revised 12/2003 o R / G / N 7rtUED ON REVERSE SIDE RBDMS BFL AUG 0 8 2006 l' '.::7 28. GEOLOGIC MARK 29. ORMATION 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". Sag River 1 0995' 8605' None Shublik A 11038' 8636' Sadlerochit I Zone 4 11231 ' 8771' 30. List of Attachments: Summary of Pre-Rig Work and Daily Drilling Reports Signed Terrie Hubble Title Technical Assistant Date oajDLf ~ 31. I hereby certify that the fore oing is true and correct to the best of my knowledge. PBU Z-26 Well Number 189-052 306-193 Permit No. I A Prepared By NameINumber: Drilling Engineer: Terrie Hubble, 564-4628 Mary Endacott, 564-4388 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 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 . . Well: Field: API: Z -26A Prudhoe Bay Unit 50-029-21945-01 Accept: Spud: Release: 07/01/06 07/03/06 07/06/06 PRE-RIG WORK OS/28/06 DRIFT W/3.70 DUMMY WHIPSTOCK, UNABLE TO DRIFT PAST 10058' SLM. D&T W/3.65 CENT, TEL AND SAMPLE BAILER - CORRECTED TAG OF 11,457' MD. APPROX 20' OF OPEN PERFS. LOGGED CALIPER FROM 11398' SLM TO SURFACE. SET X-LOCK CATCHER AT 10,605' SLM. PULL GLV'S FROM STA #5 AND #6. SET DGLV IN STA #6 AT 3187' SLM. OS/29/06 SET 1.5" DGLV IN STA #5 AT 5225' SLM. MIT-OA, MIT MASTER AND WING, BOTH PASSED. PULLED CATCHER SUB. DRIFT WI 20' X 3.625" TO 11,400' SLM. 06/27/06 SET 4-1/2"X7" BAKER GEN 2 WHIPSTOCK TOP AT 11385' WITH 2 RA PIP TAGS LOCATED 11395. GOOD INDICATION OF SET. WHIPSTOCK SET AT 7-1/2 DEGREES LEFT OF HIGHSIDE. WELL SHUT IN, JOB COMPLETE. · BP EXPLORATION Operation mmary Report Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Date 6/30/2006 7/1/2006 Z-26 Z-26 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 From - To Höurs Ta.sk Code NPT Pha.se 12:30 - 13:00 0,50 MOB P PRE 13:00 - 13:15 0.25 MOB P PRE 13:15 - 13:30 0.25 MOB P PRE 13:30 - 19:30 6.00 MOB P PRE 19:30 - 20:30 1.00 MOB N RREP PRE 20:30 - 00:00 3.50 MOB P PRE 00:00 - 08:00 8.00 MOB P PRE 08:00 - 08:15 0,25 MOB P PRE 08:15 - 08:30 0.25 MOB P PRE 08:30 - 12:00 3.50 BOPSU P PRE 12:00 - 18:30 6.50 BOPSU P PRE 18:30 - 18:45 0.25 BOPSU P PRE 18:45 - 19:00 0.25 RIGU P PRE 19:00 - 20:45 1.75 RIGU P PRE 20:45 - 21:00 0.25 KILL P PRE 21 :00 - 21 :30 0.50 KILL P PRE 21 :30 - 23:30 2.00 KILL P PRE 23:30 - 00:00 0.50 KILL P PRE 7/212006 00:00 - 01 :45 1.75 ZONISO P WEXIT 01 :45 - 02:00 0.25 ZONISO P WEXIT 02:00 - 04:30 2.50 ZONISO P WEXIT 04:30 - 05:15 0.75 ZONISO P WEXIT Start: 6/20/2006 Rig Release: 7/6/2006 Rig Number: N1 Spud Date: 5/13/1989 End: Description of Operations Rig released from 07-07B @ 12:30Hrs on 6/30/2006. Prep to move rig off well. PJSM. Jack-up rig & pull rig off well. Conduct post-operations pad inspection. Held pre-move safety meeting with crew, security & 1001 services. Move rig from DS#07 to Z-pad. Repair clutch & flush drive pump & motor. Continue moving rig to Z-pad. Continue moving rig from DS#07 to Z-pad. Meanwhile Wells Group mobilize LRS to load & kill well with 5bbls of MEOH & 290bbls of 1% KCL-waler @ 3-4.5bpm. Initial T/I/O = 2500/0/0psi. Final T/I/O = 2200 (bleeding down)/O/Opsi. Finished well kill @ 06:20 Hrs. SAFETY MEETING. Review procedure, hazards and mitigation for backing rig over well. Back rig over well and center over tree. ACCEPT RIG AT 08:30 HRS, 07/01/06. Nipple up BOPE. Position tanks and trailers. RIU lAP and OAP electronic gauges. Fill rig pits with KCL water. Grease swab valve & perform initial BOPE pressure/function test. AOGCC Witness waived by John Crisp. BOPE testing witnessed by Rick Whitlow, BP WSL. Send test report to AOGCC. RIU tiger tank and hardline. Open up well & observe WHP = 700psi, lAP = 7psi, OAP = Opsi. Change out CT packott. Held PJSM for cutting CT. RIU hydraulic cutter & cut 1000' of CT for fatigue management. Have 13840' of CT left on reel. Held PJSM for killing well. Rehead & MIU BKR LH CTC. Pull test to 35k. Line up to pump via the kill line. Load well with 270bbls of 2% KCL-water @ 3.5-2.5bpm & 3OO0psi. Bleed off well & SI well again. Observe WHP rising & well still flowing: Decide to P&A perfs before milling the XN. Install dart catcher. Pump 5bbls of 2% KCL ahead. Load wiper dart. Launch & chase with 2% KCL. Dart hit @ 52.1 bbls. Press test CTC & inner reel valve to 3500psi - Observe presurre fluctuation. Suspect air/N2 in CT. Circ another CT volume & retest - OK. PJSM. MIU slick cementing BHA #1 with big hole (0.90" ID) nozzle & 6' CSH tbg pup. Strip into well & MIU injector. Open up well & observe 400psi WHP. lAP = 7psi, OAP = Opsi. Strip/snub in hole with cementing BHA #1, circ @ 0.75bpm, maintaining 400psi WHP & taking gassy returns to tiger tank. Wt check @ 10700' => Up - 42k, Run-in - 17k. Continue RIH & tag WS @ 11406'. Correct CTD to 11385' (ELMD). PUH to 11375' & flag CT. Conduct injectivity test - 3.65bpm @ 3050psi CTP & 2650psi WHP. Continue injecting 2% KCL @ 2.35bpm & 2850psi WHP. Printed: 7/1012006 7:22:47 AM · BP E.KPLORA TION erations Summary Report Page 2. Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-26 Z-26 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: 6/20/2006 Rig Release: 7/6/2006 Rig Number: N1 Spud Date: 5/13/1989 End: Date Fröm- To Hours Task Code NPT Pha.se Description of Operations 7/2/2006 04:30 - 05:15 0.75 ZONISO P WEXIT Meanwhile RU SLB Cementers. 05:15 - 05:30 0.25 ZONISO P WEXIT PJSM with all personnel concerning cementing operations. Meanwhile continue injecting 2% KCL @ 2.05bpm & 2600psi WHP to liquid pack wellbore, 05:30 - 06:30 1.00 ZONISO P WEXIT Prime up. Flush/PT lines to 4k. Pump 5bbls of water ahead. Mix & pump 22,5bbls 15.8ppg class 'G' cmt slurry & 5bbls of water behind @ 2.5bpm/2050psi & 1650psi WHP. Chase cement with KCL water @ 2.50bpm/2200psi & 1850psi WHP. Shut-in choke @ 50bbls away. Bullhead 6.5bbls of cmt away @ 2.34bpm from 2000psi WHP to squeeze pressure of 3000psi. Open up choke to 2000psi WHP. Lay-in remaining 16bbls cmt 1:1 to TOC @ 10920'. 06:30 - 07:20 0.83 ZONISO P WEXIT POOH to safety @ 10000'. Hold 2000 psi Sqz Press for 30 min. Circ. 2# Biozan to nozzle. RIH to top of Cmt at 10920'. 07:20 - 10:00 2.67 ZONISO P WEXIT Clean out Cmt in 7" liner with Biozan at 2.8 bpm, RIH at 40 FPM. Clean out liner to flag at 11,375'. Pull slow while chasing CMT to surface. Circ. at 3.0 bpm, 10:00 - 10:30 0.50 ZONISO P WEXIT Jet stack with swizzle stick. 10:30 - 10:50 0.33 STWHIP P WEXIT M/U BOT left hand 3.80" milling BHA to mill out "XN" Nipple in tailpipe. OAL = 17.06'. 10:50 - 13:30 2.67 STWHIP P WEXIT RIH with BHA #2, BOT 3.80" left hand Diamond milling BHA. 41.5K up wt at 10700'. RIH and tag XN at 10805', no pump. Pick up and ease down with 2.5 bpm. 13:30 - 14:30 1.00 STWHIP P WEXIT Mill XN nipple at 10,804.8', 2.5 bpm, 1250 psi. Mill with minimum WOB. Milled thru with 2 stalls. RIH 5 ft. Backream XN Nipple. Ream down clean. Backream clean. RIH clean with no pump. XN is milled out to 3.80". 14:30 - 16:30 2.00 STWHIP P WEXIT POH with LH milling BHA. 16:30 - 18:30 2.00 STWHIP P WEXIT Layout LH milling BHA. Barabolic 3.80" Mill gauged at 3.80" GO / 3.79" NO-GO. Cut off LH CTC. M/U BOT RH CTC and pull / Press test. M/U 3.80" BOT window milling BHA with 3.80" mill, 3.80" string reamer and straight motor. OAL = 84.71'. 18:30 - 21 :00 2.50 STWHIP P WEXIT RIH window milling BHA #3. Wt check @ 10700' => Up - 4Ok, Run-in - 17k. Continue RIH & dry tag WS @ 11404'. PUH & establish freespin @ 2.5bpm/1250psi. Ease in hole with pumps on & stall @ 11403.7'. P/U with 10k O/pull. Ease in & stall again. P/U with 5k O/pull - suspect we're @ WS/Lnr pinch pt. Flag pipe & correct depth to 11389.6' (pinch pt ELMO). 21 :00 - 21 :30 0.50 STWHIP P WEXIT Mill window from 11389.6' to 11390' with 2.5/2.5bpm, 1250/1300psi, 1k WOB & 1fph ave ROP. 21:30 - 22:15 0.75 STWHIP P WEXIT Mill to 11391' with 2.5/2.5bpm, 1250/1420psi, 1k WOB & 1.5fph ave ROP. 22:15 - 23:00 0.75 STWHIP P WEXIT Mill to 11392' with 2.5/2.5bpm, 1250/1480psi, 1.5k WOB & 1.5fph ave ROP. 23:00 - 00:00 1.00 STWHIP P WEXIT Mill to 11393' with 2.5/2.5bpm, 1250/1550psi, 2k WOB & 1fph ave ROP. 7/3/2006 00:00 - 01 :00 1.00 STWHIP P WEXIT Mill to 11394' with 2.5/2.5bpm, 1250/1550psi, 2.5k WOB & 1fph ave ROP. Getting cement & metal shavings on the shaker. Printed: 711012006 7:22:47 AM . . BP EXPLORATION Operations Summary Report Mill to 11395' with 2.5/2.5bpm, 1250/1580psi, 2.5k WOB & 1fph ave ROP. Mill to 11396' with 2.5/2.5bpm, 1250/1580psi, 2.5k WOB & 1.5fph ave ROP. Control mill to 11397.5' with 2.5/2.5bpm, 1250/1460psi, 1k WOB & 1.5fph ave ROP. Have milled a total of 7.9' & should be in formation by now. Mill 10' formation to 11408' with 2.5/2.5bpm, 1250/1490psi, 1 Of ph ave ROP & 2k WOB. Swap wellbore to 8.6 ppg reconditioned flopro mud with 12ppb K-G & 3% L-T. Meanwhile backream/dress window/rat hole 3x & drift 2x. Window looks clean. Tentative window depths are: TOWS = 11385', TOW = 11389.6', RA PIP Tag = 11395'. BOW = 11397.5'. WEXIT Paint EOP flag @ 10900' & POOH window milling BHA#3. WEXIT Layout milling BHA. Window mill gauged at 3.80" Go I 3.79" No-Go. Cut off 50' of coil for Chrome tubing maintenance. M/U SWS CTC. Pull I Press test. PRE-SPUD MEETING. Reviewed well drilling and completion procedure, hazards and mitigation with all crew members. M/U LATERAL RES/MWD BHA #4 with DS49 TREX Bit #3 and 1.8 deg Extreme motor. upload Sperry RES tool. OAL = 87.05'. RIH with MWD I RES Lateral BHA #4. SHT tools at 3100'. OK. RIH to flag. Correct -10' at flag. RIH to 11350'. Orient TF to 10L. RIH clean thru window. Tag bottom at 11,412' and correct depth to 11 ,408'. rilled 3 teral. 2. incl, 45 fph. Drilled to 11 ,463'. PROD1 Drilled Z3 Lateral. incl, 35 fph. Drilled to 11,514'. PROD1 Wiper trip to window. Cle ole. PROD1 Log GR tie-in of RA 0 original openhole. Log down. Added 1 ft to RIH. Dr' Z3 Lateral. 2.5 I 2.5 bpm, 2800-3000 psi, 45L, 71 deg Incl, 40 fph. Drilled to 11 ,541 '. 41 N came in @ 8835'sstvd. Plan to soft land 8855'sstvd with 85degs incl. Orie around to 90L. Up wt = 32k, S/O wt = 15k, PVT = 309bbls, I - 44psi & OAP = 45psi. Drill to 11611' WI 5-85L TF, 2.55/2.55bpm, 2800/3450psi, 6k WOB & 30fph ave R Orient 1 click & drill to 1163 . h 70-85L TF, 2.55/2.55bpm, 2800/3450psi, 6k WOB & 15fph a OP. Drill to 11657' with 75-90L TF, 2.55/2.5 WOB & 45fph ave ROP. Orient TF around to 9OR. Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: 2-26 2-26 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Date From - To Hours Task Code NPT Phase 7/3/2006 01 :00 - 02:00 1.00 STWHIP P WEXIT 02:00 - 02:40 0.67 STWHIP P WEXIT 02:40 - 03:40 1.00 STWHIP P WEXIT 03:40 - 04:40 1.00 STWHIP P WEXIT 04:40 - 05:20 0.67 STWHIP P WEXIT 05:20 - 07:15 07:15 - 09:15 1.92 STWHIP P 2.00 STWHIP P 09: 15 - 09:45 0.50 DRILL P PROD1 09:45 - 11 :40 1.92 DRILL P PROD1 11:40 -13:45 2,08 DRILL P PROD1 13:45 - 14:10 0.42 DRILL P PROD1 14:10 - 14:20 0.17 DRILL P PROD1 P 17:45 - 17:55 17:55· 18:30 18:30 - 19:15 0.75 DRILL 19:15 - 19:35 0.33 DRILL 19:35 - 22:10 PROD1 P PROD1 0.67 DRILL P PROD1 0.50 DRILL P PROD1 Start: 6/20/2006 Rig Release: 7/6/2006 Rig Number: N1 Spud Date: 5/13/1989 End: Description of Operations Printed: 7/1012006 7:22:47 AM e e FRANK H. MURKfiWSKI, GOVERNOR AI,ASHA OIL AND GAS CONSERVATION COMMISSION 333 W. 7'" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Mary Endacott CT Drilling Engineer BP Exploration (Alaska) Inc. PO Box 196612 Anchorage, AK 99519-6612 A .~ .. .. ".\¡¡;;;r tb\,;~'!'ke~j ~~ ~t 200b ...... .... Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 2-26 Sundry Number: 306-193 /"r 0'0 \ C([\ / Dear Ms. Endacott: 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. DATED thiS$. day of June, 2006 Encl. . .{, r/f~~~ fJ:JS e,/- ~' A((ý bJP-/~ r ~ STATE OF ALASKA e ALASKA 0 L AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROV~a 20 MC 25.280 ¡~, ·fµ,IUJ.f?r°f! ',..,~ 1\-". ~. l'~ \ ",' p.... ... } ;'J '1. 0",~,:" it:#' ~,,~~,. '\4' ~_ 'j""j {'~ ~ 'I} .i 1. Type of Request: a Abandon o Repair Well o Plug Perforations o Stimulate o Alter Casing o Pull Tubing o Perforate New Pool o Waiver o Other o Change Approved Program o Operation Shutdown o Perforate o Time Extension o Re-Enter Suspended W 2. Operator Name: 4. Well Class Before Work: / 5. Permit TOYiII Number BP Exploration (Alaska) Inc. IBI Development 0 Exploratory 189-052 3. Address: o Stratigraphic o Service 6. API Number: / P.O. Box 196612, Anchorage, Alaska 99519-6612 50- 029-21945-00-00 7. KB Elevation (ft): 89.47' 9. Well Name and Number: PBU Z-26 / 8. Property Designation: 10. Field / Pool(s): / ADL 028262 Prudhoe Bay Field / Prudhoe Bay Pool ·'.';·i>i »; /. > >.:;. .' . .........Lt.il..l.,.,PIJ ....... ... >i...;.> >/ .:..... . Total Depth MD (ft): Total Depth TVD (ft):1 Effective Depth MD (ft): Effective Depth TVD (ft) Plugs (measured): Junk (measured): 11850 9115 11523 8951 11523 11453 Casing Length Size MD / TVD Burst Collapse Structural Conductor 110' 20" 110' 110' Surface 2622' 13-3/8" 2622' 2622' 4930 2270 Intermediate 10986' 9-5/8" 10986' 8599' 6870 4760 Production Liner 1111 ' 7" 10739' - 11850' 8419' - 9115' 7240 5410 Perforation Depth MD (ft): I Perforation Depth TVD (ft): I Tubing Size: / Tubing Grade: Tubing MD (ft): 11436' - 11670' / 8901' - 9030' 4-1/2",12.6# 13Cr 10793' Packers and SSSV Type: 9-5/8" x 4-1/2" Baker 'S-3' packer I Packers and SSSV MD (ft): 10653' / 12. Attachments: 13. Well Class after proposed work: IBI Description Summary of Proposal 0 BOP Sketch o Exploratory IBI Development 0 Service o Detailed Operations Program 14. Estimated Date for / 15. Well Status after proposed work: / Commencing Operations: July 15, 2006 OOil OGas o Plugged IBI Abandoned 16. Verbal Approval: Date: o WAG OGINJ OWINJ o WDSPL Commission Representative: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Mary Endacott, 564-4388 Printed Name Mary E!),dacott Title CT Drilling Engineer '/y}JJðJl1Æ /If A /- / If Date fR /, / Of; Prepared By Name/Number: Siç¡nature " '/" IAIJ/x, Phone 564-4388 Terrie Hubble, 564-4628 I V Commission Use Only Conditions of approval: Notify Commission so that a representative may witness I Sundry Number: l ~l D -{ ~"3 o Plug Integrity o BOP Test o Mechanical Integrity Test o Location Clearance Other: Apr'YO(/~d HrM- 10 - 4-0 I r«r"J·~.Ij ~r '- ; ck tyout: ,,µ..ß/I t:~ z..t¡p A- . 'oruil)l RBDMS BFL jUN 1 3 2006 Subsequent Form Required: ~ ,'~ ~COMMISSIONER APPROVED BY ,,~~ Approved By: THE COMMISSION Date Form 10-403 Revised 07/2005 \.../ ~ , ~bmrt: In Duplicate ORIGINAL e e To: Winton Aubert, Petroleum Engineer Alaska Oil & Gas Conservation Commission From: M.S. Endacott, BPXA CTD Engineer; 564-4388 Date: May 31, 2006 Re: Prep Prudhoe Z-26 for CTD sidetrack Sundry approval is requested to prepare Z-26 for a sidetrack Z-26A. Due to liner damage and fill, the Z-26 well only produces from Zone 42P. However, the supporting injectors are, or will be injecting into Zones 3, 41P, and 42P. A rig sidetrack will reposition the well and regain access into all three zones of interest. Pre-Rig Work Summary: The pre CTD work is slated to begin approximately July 15, 2006. 1. Set whipstock 2. Downsqueeze cement V 19(' 1 2., bblc, 3. Pressure test T~\ to ~ 40! OfflJtNtN1. W6Â- Ri2 Work 1. MIRV Nordic 1 and test BOPE. 2. Mill 3.8" window in Zone 4. 3. Drill sidetrack into Zone 4 target with resistivity log. 4. Run and cement liner. 5. Cleanout liner and run cased-hole MCNL log. 6. Perforate. 7. Freeze protect well and RDMO. Post-Ri2 Work 1. Generic GL V 2. Install well house. Hook up flow line. CC: Well File Sondra StewmanlTerrie Hubble TREE = WÐ..LHEAD .= ACTUATOR = KB. B...EV = BF. B...EV = KOP= Max Angle = Datum MD = Datum lVD = MCEVOY FMC BAKER 89.47' 5525' 3100' 63 @ 11800' 11,417' 8800' SS e 13-3/8" CSG, 68#, L-80,ID= 12.415" I Minimum 10 = 3.725" @ 10780' 4-1/2" HES XN NIPPLE 14-1/2" TBG, 12.6#, 13-CR. .0152 bpf, ID = 3.958" I 9-5/8" CSG, 47#, L-80, ID = 8.681" I 10791' 10986' ÆRFORA TION SUMMARY REF LOG: BHCt\ ON 05/31/89 ANGLEATTOPÆRF: 54 @ 11436' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-1/8" 6 11436 - 11474 0 06/30/94 2-1/8" 6 11504-11518 0 05/07/94 2-1/8" 6 11522-11530 C 05/07/94 2-1/8" 4 11530 - 11540 C 04/05/91 2-1/8" 6 11540 - 11555 C 05/07/94 2-1/8" 4 11562 - 11570 C 04/05/91 2-1/8" 4 11574 - 11620 C 04/05/91 5" 4 11630 - 11670 C 03/16/91 2-1/8" 4 11630-11670 C 04/05/91 I PBTD I 11785' I 7" LNR. 26#, L-80, .0383 bpf, ID = 6.276" I DATE 06/09/89 09/07/03 09/25/03 03/23/04 04/13/04 04/28/05 11850' REV BY COMMENTS FERRa. ORIGINAL COM PLETION DAC/KK RWO AF/KAK FISH LOST 06/30/94 JLJ/KAK GLV C/O JLJ/KAK GLV C/O KEY/PJC FCO DATE Z-26 REV BY COMMENTS ~OTES: 4-1/2" CHROMETBG. 2211' -4-1/2"HESXNIP,ID=3813" I ST MD 6 3196 5 5232 4 6848 3 8162 2 9503 1 10563 lVD 3193 4817 5883 6811 7613 8294 GA S LIFT MA NDRB...S DEV lYÆ VLV LATCH 12 MMG DOME RK 49 MMG SO RK 46 MMG DMY RK 54 MMG DMY RK 51 MMG DMY RK 46 MMG DMY RK 10633' -14-1/2" HES X NIP. 10 = 3.813" I PORT OA TE 16 04/13/04 20 04/13/04 o 09/05/03 o 09/05/03 o 09/05/03 o 09105/03 10653' -i9-5/8" X 4-1/2" BKR S-3 PKR. 10 = 3.875" 10678' 4-1/2" HES X NIP, 10 = 3.813" I 10780' 4-1/2" HES XN NIP, 10 = 3.725" I 10793' -i4-1I2" WLEG. 10 = 40" I H B...MO TT NOT LOGGED 11195' H MARKER JOINT I 11453' -i FISH - 10' STRIP GUN (06/30/94) I 11523' H TOP OF FILL (4/28/05) PRUDHOE BA Y UNrT WB...L: Z-26 ÆRMrT No: "1890520 API No: 50-029-21945-00 SEC 19, T11N, R12E, 721' FNL & 1844' FWL BP Exploration (Alaska) Z-26A ~res".'I2.~TBG. Proposed CTD Sidetrack .' t.£EVOY FMC BAKER 89.47' 55.25' 3100' 63 @ 11800' 11,417' 8800' SS e WELLtEAD = ACTUATOR = KB. aEV .. BF. aEV .. KOP· Max Angle .. Datum ~ = Datum lVD" 13-3/8" CSG, 68#, L-80, Ð = 12.415" I Minimum ID = 3.725" @ 10780' 4-1/2" HES XN NIPPLE (milled to 2.8") 14-1/2" TaG, 12.6#, 13-CR. .0152 bpf, ID = 3.958" 9-5/8" CSG. 47#, L-80, ID = 8.681" I 10791' 10986' ÆRFORA TION SlJMt.MRY REF LOG: BHCA ON 05/31/89 ANGLE AT TOP PERF: 54 @ 11436' Note: Refer to Production DB for historical perl data SIZE SPF MERVAL Opn/Sqz DATE 2-118" 6 11436 - 11474 isolated proposed 2-118" 6 11504 - 11518 isolated proposed 2-1/8" 6 11522 -11530 isolated proposed 2-1/8" 4 11530-11540 isolated proposed 2-1/8" 6 11540 - 11555 isolated proposed 2-1/8" 4 11562 - 11570 isolated proposed 2-118" 4 11574 - 11620 isolated proposed 5" 4 11630 - 11670 isolated proposed 2-1/8" 4 11630 -11670 isolated proposed 11785' 7" LNR. 26#, L-80, .0383 bpf, 10" 6.276" 11850' 2211' 4-1/2" HESX NP, 10=3.813" ST ~ 6 3196 5 5232 4 6848 3 8162 2 9503 1 10563 10633' lVD 3193 4817 5883 6811 7613 8294 GAS LFT MANDR8..S DEV TYÆ VLV LATCH 12 M\1G DOME RK 49 M\1G SO RK 46 M\1G [)MY RK 54 M\1G [)MY RK 51 M'v1G [)MY RK 46 M\1G [)MY RK PORT DATE 16 04/13/04 20 04113/04 o 09/05/03 o 09/05/03 o 09/05/03 o 09/05/03 10653' 10670' 10678' 10680' 10780' 10793' 4-1/2" HES X NP, 10 = 3.813" 9-5/8" X 4-112" BKR 5-3 A<R, ID = 3.875" TOP OF 3-1/2' LNR 11195' H MARKER JOINT I 11350' -i 3-1/2 x 2-7/8 X-over Mechanical Whipstock 11453' -i FISH - 10' STRP GUN (06/30194) 11523' H TOP OF FLL (4/28/05>\ DATE REV BY COM'ÆNTS DATE REV BY COM\ÐlTS 0610918. FERRB. ORIGINAL COMPLETION 01107103 DAC/KK RWO 09125103 AFIKAK FISH LOST 06130194 03123104 JLJlKAK GLV C/O 04/13104 JLJlKAK GLV C/O 04128105 KEYIPJC FCO PRlDiOE SAY UNIT WE1..L: Z-26 PERMrT No: '1890520 API No: 50-029-21945-00 see 19, T11N, R12E, 721' FN. & 1844' FWl BP exploration (Alaska) STATE OF ALASKA ALASK,~~' ;L AND GAS CONSERVATION C(~' /IISSION REPORT OF SUNDRY WELL OPERATIONS 1. Type of Request: [] Abandon [] Suspend [] Operation Shutdown [] Perforate [] Variance [] Othe~ [] Alter Casing [] Repair Well [] Plug Perforations [] Stimulate [] Time Extension [] Change Approved Program [] Pull Tubing [] Perforate New Pool [] Re-Enter Suspended Well [] Annular Disposal 2. Operator Name: 4. Current Well Class: 5. Permit To Drill Number BP Exploration (Alaska) Inc. [] Development [] Exploratory 189-052 3. Address: [] Stratigraphic [] Service 6. APl Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-21945-00-00 7. KB Elevation (ft): KBE = 89.47' 9. Well Name and Number: PBU Z-26 8. Property Designation: 10. Field / Pool(s): ADL 028262 Prudhoe Bay Field / Prudhoe Bay Pool 11. Present well condition summary Total depth: measured 11850 feet true vertical 9115 feet Plugs (measured) Effective depth: measured 11808 feet Junk (measured) 11453' true vertical 9096 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" 110' 110' Surface 2622' 13-3/8" 2622' 2622' 4930 2270 Intermediate 10986' 9-5/8" 10986' 8599' 6870 4760 Production Liner 1111' 7" 10739' - 11850' 10739' - 11850' 7240 5410 Perforation Depth MD (ft): 11436' - 11670' Perforation Depth TVD (ft): 8901'- 9030' Tubing Size (size, grade, and measured depth): 4-1/2", 12.6# 13Cr 10793' Packers and SSSV (type and measured depth): 9-5/8" x 4-1/2" Baker 'S-3' packer 10653'; 4-1/2" HES 'X' Nipple 2211' 12. Stimulation or cement squeeze summary: ,.: ""i. i:,i' Intervals treated (measured): :? :~, ..... ;:.i; ''~: "!::' I": "': Treatment description including volumes used and final pressure: 13. Representative Dali)/Avera~le Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casin,q Pressure Tubin,q Pressure Prior to well operation: Subsequent to operation: 14. Attachments: 15. Well Class after proposed work: [] Copies of Logs and Surveys run [] Exploratory [] Development [] Service ,,! ............ [] Daily Report of Well Operations 16. Well Status after proposed work: [] Oil [] Gas [] WAG [] GINJ [] WINJ [] WDSPL 17. I hereby certify that the foregoing is true and correct to the best of my ~(n°wledge. I Sundry Number or N/A if C.O.' Exempt: Contact Robert Odenthal, 564-4387I N/A Printed Name Terrie Hubble Title Technical Assistant ~ ~,~~ ~i~~ e('~/~'~/O~ Prepared By Name/Number: ";~ ~- ~' , ~ '".... .... .Ph°ne..,.. J .,, . ~6~-4628 Dat Terrie Hubble, 564-4628 Form 10-404 Revised 2/2003 ORiGiN SEP z; 9 BP EXPLo TiON Page1 of 11 OPerations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 iRig Name: NABORS 4ES Rig Number: 4ES Date Fr°m To 'HOurs Task C°de NPT Phase: DesCriPtion of Operations 8/25/2003 09:00 - 10:30 1.50 MOB P PRE PJSM. Lower & scope down derrick. 10:30 - 11:00 0.50 MOB P PRE Prepare to move rig from MPK-21 to GPB Z-26. Pre job safety meeting with all parties involved. 11:00 - 18:00 7.00 MOB . P PRE Move rig from MPK -21 to GPB Z-26. 18:00 - 19:30 1.50' RIGU 'P PRE Spot in sub, pits & pipe shed. Berm around rig. Spot in rig camp. 19:30 - 21:00 1.50 RIGU P DECOMP PJSM. Raise & scope derrick. Rig up lines. ACCEPTED RIG @ 2100 Hrs. 21:00 - 23:30 2.50 RIGU P DECOMP R/U lines to tree & tiger tank. Take on kill fluid. 23:30 - 00:00 0.50 WHSUR P DECOMP P/U lubricator & pull BPV. L/D lubricator. 8/26/2003 00:00 - 00:30 0.50 KILL P DECOMP Pressure Tested Lines to 3,500 psi, OK. 00:30 - 04:30 4.00 KILL P DECOMP Held Pre Spud Meeting. Opened Well, Tubing Pressure 250 psi, Annulus Pressure 290 psi. Displaced Well to 8.6 ppg Seawater Initial Pump Rate 3 bpm, 600 psi, Increased Pump Rate to 5 bpm, 1,000 psi. Pumped 175 bbls to Tiger Tank to Displace Diesel Out of Wellbore. Took Returns to Pits, Pump Rate 5 bpm, 1,000 psi. Continued to Displace Well Until 8.6 ppg Fluid In, 8.6 ppg Fluid Out. Total Volume Pumped 824 bbls 8.6 ppg Seawater. Shut Down Pump. Monitored Well, Well Static. 13-3/8" x 9-5/8" Annulus Pressure Increased from 0 psi to 225 psi Due to Thermal Expansion. Pressure Dropped to 175 psi After 30 Minutes. 04:30 - 05:00 0.50 WHSUR P DECOMP Set TWC and Tested to 1,000 psi, OK. 05:00 - 06:00 1.00 WHSUR P DECOMP Blew Down and R / D Lines. Removed HCR Valve, Prepared to N / D Tree. 06:00 - 08:00 2.00 WHSUR P DECOMP Held PJSM. Bled Down Void, N / D Tree and Adapter Flange. Inspected Tubing Hanger Threads. 08:00 - 10:30 2.50 BOPSUF~ P DECOMP Held PJSM. N / U 13-5/8" x 5,000 psi BOP Stack. Hydril Annular Preventer, Blind Rams, Test Spool, Lower Pipe Rams w/2-7/8" x 5" Variable Rams. 10:30 - 16:00 5.50 BOPSUF~ P DECOMP Held PJSM. Changed Out Annular Preventer Element. 13-3/8" x 9-5/8" Annulus 100 psi. 16:00 - 21:00 5.00 BOPSUIq P DECOMP Held PJSM. R / U BOPE Testing Equipment. Tested BOPE. Tested Lower Rams, Blind Rams, Choke Manifold, Valves, HCR, Kill Line, Choke Line, Floor Valves and IBOP to 3,500 psi High / 250 psi Low. Tested Annular Preventer to 3,500 psi High / 250 psi Low. All Tests Held f/5 Min. All Pressure Tests Held w/No Leaks or Pressure Loss. BOPE Test Witnessed by AOGCC Rep Jeff Jones. 21:00 - 21:30 0.50 BOPSUR P DECOMP R / D BOPE Testing Equipment. 21:30 - 22:00 0.50 WHSUR P DECOMP Held PJSM. R / U DSM Lubricator, Pulled TVVC, R / D DSM. Tubing and Annulus on Slight Vacuum. 22:00 - 22:30 0.50 PULL P DECOMP Held PJSM. Established Parameters. M / U Spear w/Double Grapples 2.934" and 3.001" to 3-1/2" DP. 22:30 - 23:00 0.50 PULL P DECOMP RIH w/Spear and Engaged 3-1/2" Tubing, BOLDS. 23:00 - 23:30 0.50 PULL P DECOMP Pulled on Tubing, Pulled Hanger Off of Seat w/80,000#, Pulled Up to 135,000# w/Tubing Movement, Weight Dropped Back to 92,000#. Pulled Tubing Hanger to Rig Floor, String Weight Up 92,000#. 23:30 - 00:00 0.50 PULL P DECOMP Broke out and L / D Spear and 3-1/2" DP. Terminated Control Lines in Tubing Hanger. Broke Out and L / D Tubing Hanger. 8/27/2003 00:00 - 03:30 3.50 PULL P DECOMP R / U Circulating Head and Lines. Circulated Bottoms Up as a Precaution. Pump Rate 6 bpm, 700 psi. Good Show of Gas on Printed: 9/8/2003 8:48:30AM BP EXPLORATION Page2 of 11 Operations Summary RepOrt Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date i From- To :Hours Task Code NPT Phase Description of Operations 8/27/2003 00:00 - 03:30 3.50 PULL P DECOMP Bottoms Up. Circulated Until All Gas Out of Wellbore. R / U Schlumberger Control Line Spooling Equipment. 03:30 - 07:00 3.50 PULL P DECOMP POOH and L / D 3-1/2" 9.3# L-80 TDS Tubing, Spooled Up Dual Control Line. Serviced Rig. Recovered 3 SS Bands, 32 Clamps. 07:00 - 07:30 0.50 PULL P DECOMP R / D Control Line Spooling Equipment. Broke Out and L / D SSSV Assembly. 07:30 - 09:30 2.00 PULL P DECOMP Observed Gas Percolating in Annulus. Circulated to Clear Gas Out of Wellbore. Depth of Tubing 8,530', Pump Rate 6 bpm, 550 psi. Total Volume Pumped 530 bbls. Monitored Well, Well Static. 09:30 - 12:00 2.50 PULL I P DECOMP POOH and L / D 3-1/2" 9.3# L-80 TDS Tubing. Found a Hole in Joint #135. 12:00 - 13:30 1.50 PULL P DECOMP Observed Gas Percolating in Annulus. Circulated to Clear Gas Out of Wellbore. Depth of Tubing 5,825', Pump Rate 6 bpm, 500 psi. Total Volume Pumped 357 bbls. Monitored Well, Well Static. 13:30 - 17:30 4.00 PULL P DECOMP POOH and L / D 3-1/2" Tubing. Total L / D 331 Joints 3-1/2" 9.3# L-80 TDS Tubing, Cut Joint - 13.10', 1 - SSSV Assembly, 6 - GLM Assemblies. Joint #331 Found To Have 4" x 1" Split. 17:30 - 19:00 1.50 PULL P DECOMP R / D 3-1/2" Tubing Handling Equipment, R / U 3-1/2" Drill Pipe Handling Equipment. Cleared and Cleaned Rig Floor. Ran and Set Wear Bushing. 19:00 - 20:30 1.50 FISH P DECOMP Held PJSM. M / U Fishing BHA: Double Overshot and Extension w/3-1/2" Double Grapples - XO - Bumper Jars - Oil Jars - XO - 9 x 6-1/4" DC - XO - Accelerator Jars - XO - XO - Pump Out Sub. Total BHA Length: 331.06'. 20:30 - 22:00 1.50 FISH P DECOMP RIH w/Fishing BHA on 3-1/2" DP. P / U DP from Pipe Shed. 22:00 - 23:00 1.00 FISH P DECOMP Held PJSM. Changed Out Upper Kelly Cock Sub. 23:00 - 00:00 1.00 FISH P DECOMP RIH w/Fishing BHA on 3-1/2" DP. P / U DP from Pipe Shed. 8/28/2003 00:00 - 09:00 9.00 FISH P DECOMP RIH w/Fishing BHA on 3-1/2" DP. P / U DP from Pipe Shed to 9,072'. String Weight Up 140,000#, String Weight Down 112,000#. 09:00 - 09:30 0.50 WHSUR P DECOMP Held PJSM. M / U Halliburton 9 5/8" RTTS w/Storm Valve. RIH w/RTTS Packer and Set at 32'. Released From RTTS w/ 19-1/2 left hand turns. Gas Percolating in Wellbore. Bled Down 13-3/8" x 9-5/8" Annulus, Percolating Ceased. Closed Blind Rams and Tested Packer to 1,000 psi, OK. Bled Down Pressure, Opened Blind Rams and Drained BOP Stack. Latched and Pulled Wear Bushing. 09:30 - 11:00 1.50 WHSUR P DECOMP Held PJSM. M / U Packoff Retrieving Tool to 3-1/2" DP. BOLDS. RIH w/Retrieving Tool, Latched and Pulled 9 5/8" Packoff. Washed Out Stack. M / U and RIH w/New 9 5/8" Packoff. Released Tool From Packoff and POOH. Torqued Lock Down Screws to 450 ft / lbs. Pressure Tested Packoff to 5,000 psi f/10 minutes, OK. RIH and Installed Wear Bushing. 11:00 - 12:00 1.00 WHSUR: P DECOMP RIH w/RTTS Retrieving Tool. Latched Into RTTS w/20-1/2 Right Hand Turns. Released RTTS Packer, POOH, Broke Out and L / D RTTS. 12:00 - 13:00 1.00' FISH P DECOMP RIH w/Fishing BHA on 3-1/2" DP from Pipe Shed. Total Joints 322. 13:00 - 15:30 2.50 FISH P DECOMP Held PJSM M / U 15' DP Pup Joint and Joint #323. M / U Kelly, Established Parameters, String Weight Up 166,000#, Printed: 9~8~2003 8:48:30AM BP EXPLORATION :' Page 3 ofl 1 Operations Sumrna Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From ,TO HOurs Task COde NPT PhaSe DescriptiOn of Operations 8/28/2003 13:00 - 15:30 2.50 FISH P DECOMP String Weight Down 125,000#, String Weight Rotating 141,000#. Torque Off Bottom 4,000 ft / lbs. Engaged Pump, Pump Rate 1 bpm, 120 psi. RIH and Observed Top of Fish 17' in on Kelly at 10,630' w/No Pressure Increase. Picked Up and Rotated Over Top of Fish. Observed Pressure Increase to 1,000 psi. Shut Down Pump and Bled Off Pressure. Slacked Off and Stacked 10,000# on Fish, Bottom of Overshot at 10,640'. Picked Up to 205,000# and Jarred on Fish to Engage Grapples. Slacked Off to 176,000#, 10,000# Overpull. Rotated Drill String to the Right 22 Turns. Observed Torque Increase to 14,000 ft / lbs, Grapples Slipped. Released Overshot and Pulled Up Hole. Engaged Pump, Pump Rate 1 bpm, 120 psi. RIH and Observed Pressure Increase to 1,000 psi. Shut Down Pump and Bled Off Pressure. Slacked Off and Stacked 10,000# on Fish, Picked Up and Jarred on Fish to Engage Grapples. Slacked Off to 10,000# Overpull. Rotated Drill String to the Right 22 Turns. Observed Torque Increase to 14,000 ft / lbs. Grapples Slipped. Verified Grapples Slipping, by Pulling Up Hole, Then Slacking Off w/Pump Engaged. Observed Pressure Increase as Overshot Swallowed Fish. Slacked Off and Stacked 10,000# on Fish, Bottom of Overshot at 10,640'. Engaged Fish and Picked Up on Drill String. Observed Grapples Slipping On Fish. Grapples Failed to Fully Engage Fish. Broke Off and Stood Back Kelly. 15:30 - 20:00 4.50 FISH P DECOMP Held PJSM. POOH w/3 1/2" DP. 20:00 - 21:00 1.00 FISH P DECOMP Held PJSM. Slipped and Cut Drilling Line. 21:00 - 21:30 0.50 FISH P DECOMP POOH w/3-1/2" DP. 21:30 - 23:00 1.50 FISH P DECOMP POOH w/Fishing BHA. Broke Down Overshot and Removed Grapples. Grapples were Dulled. 23:00 - 23:30 0.50 FISH P DECOMP Held PJSM. Installed New Grapples, Added 3' of Extension to Overshot to Engage Fish at Different Depth. M / U Fishing BHA #2: Double Overshot and Extension w/3-1/2" Double Grapples - XO - Bumper Jars - Oil Jars - XO - 9 x 6-1/4" DC - XO - Accelerator Jars - XO - XO - Pump Out Sub. Total BHA Length: 334.74'. 23:30 - 00:00 0.50 FISH P DECOMP RIH w/Fishing BHA on 3-1/2" DP. 8/29/2003 00:00 - 04:30 4.50 FISH P DECOMP RIH w/Fishing BHA #2 on 3-1/2" DP. 04:30 - 05:30 1.00 FISH P DECOMP Held PJSM. M / U Kelly, Established Parameters, String Weight Up 160,000#, String Weight Down 125,000#, String Weight Rotating 140,000#. Torque Off Bottom 5,000 ft / lbs, RPM 30. Engaged Pump, Pump Rate 1 bpm, 100 psi. RIH Observed Pressure Increase to 500 psi as Overshot Swallowed Fish. Shut Down Pump and Bled Off Pressure. Slacked Off and Stacked 10,000# on Fish, Bottom of Overshot at 10,643'. Jarred on Fish w/65,000# Overpull 5 times. Slacked Off to 175,000#, 15,000# Overpull. Rotated Drill String to the Right 20 Turns, Observed Torque Increase to 8,000 ft / lbs, Let Out Torque and Got Back 18 Turns. Jarred on Fish w/65,000# Overpull 5 times. Slacked Off to 175,000#, 15,000# Overpull. Rotated Drill String to the Right 23 Turns, Observed Torque Increase to 10,000 ft / lbs, Let Out Torque and Got Back 7 Turns. Rotated Drill String to the Right 30 Turns, Observed Torque Increase to 6,000 ft / lbs, Let Out Torque and Got Back Printed: 9/8/2003 8:48:30AM BP EXPLORATION Page 4 of 11 Operations Summary.Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End' 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date iFrom,To Hours Task Code NPT phase DescriPtion of Operations 812912003 04:30 - 05:30 1.00 FISH P DECOMP 8 Turns. Picked Up on Drill String to 225,000#. Jarred on Fish w/90,000# Overpull, Fish Came Free. Pulled Up Hole 20' w/ 5,000# Drag. 05:30 - 06:00 0.50~ FISH P DECOMP Broke Off Kelly, Dropped Ball, Allowed Ball to Fall on Seat on Pump Out Sub. M / U Kelly. 06:00 - 06:30 0.50~ FISH P DECOMP Held PJSM. Engaged Pump and Pressured Up to 2,00 psi to Open Pump Out Sub. Took 9 bbls to Fill Hole. 06:30 - 08:30 2.00 FISH P DECOMP Circulated Bottoms Up, Pump Rate 5 bpm, 1,200 psi. Average Loss Rate, 8 bph. Oil and Abundant Gas Percolating to Surface after Pumping 660 bbls. Shut Down Pump and Closed Annular Preventer. Lined Up to Take Returns to the Tiger Tank. 08:30 - 10:30 2.00 FISH P DECOMP Held PJSM. Engaged Pump and Circulated Through Choke, Took Returns to Tiger Tank. Pump Rate 5 bpm, 1,300 psi. Pumped 235 bbls. Shut Down Pump, Monitored Well. Observed Significant Show of Gas in Wellbore. Shut In Well and Monitored Pressure. SIDPP 10 psi, SICP 40 psi. 10:30 - 11:30 1.00 FISH P DECOMP Took On Seawater and Weighted Up to 8.8 ppg. 11:30 - 12:00 0.50 FISH P DECOMP Pumped 8.8 ppg Brine Down DP, Took Oil and Gas Cut Seawater Returns Through Choke to Tiger Tank. Held 100 psi Back Pressure on Choke. Pump Rate 5 bpm, 1,250 psi. Total Volume Pumped 100 bbls. Shut Down Pump. Monitored Well. 12:00 - 12:30 0.50 FISH P DECOMP Weighted Up Fluid from 8.8 ppg to 8.9 ppg. 12:30 - 14:00 1.50 FISH P DECOMP Pumped 8.9 ppg Brine Down DP, Took Oil and Gas Cut Seawater Returns Through Choke to Tiger Tank. Held 100 psi Back Pressure on Choke. Pump Rate 5 bpm, 1,300 psi. Total Volume Pumped 180 bbls. Shut Down Pump, Monitored Well, DP on Slight Vacuum, SICP 40 psi. 14:00 - 15:00 1.00 FISH P DECOMP Monitored Well, While Waiting on 8.9 ppg Brine from Mud Plant. SICP 30 psi, DP on vacuum. Took on 8.9 ppg Brine. 15:00 - 16:30 1.50 FISH P DECOMP Pumped 8.9 ppg Brine Down DP, Took Oil and Gas Cut Seawater Returns Through Choke to Tiger Tank. Held 100 psi Back Pressure on Choke. Pump Rate 5 bpm, 1,300 psi. Total Volume Pumped 290 bbls. Shut Down Pump, Monitored Well, DP on Slight Vacuum, SICP 30 psi. 16:30 - 17:30 1.00 FISH P DECOMP Changed Out Pressure Gauge on 13-3/8" x 9-5/8" OA, OA Pressure 75 psi. Bled Down OA to 0 psi. After Bleeding Down 13-3/8" x 9-5/8" O/A, SICP Dropped to 20 psi. 17:30 - 18:30 1.00 FISH P DECOMP Bled Down SICP, Opened Well and Circulated 8.9 ppg Brine Down Wellbore. Pump Rate 5 bpm, 1,300 psi. Took 5.5 bbls to Fill DP, 25 bbls to Get Returns. Total Volume Pumped 160 bbls. No Gas or Oil in Wellbore Fluids. 18:30 - 19:00 0.50 FISH P DECOMP Monitored Well, Fluid Level Dropping in Wellbore. Broke Off, Blew Down and Stood Back Kelly. 19:00 - 00:00 5.00 FISH P DECOMP POOH w/3-1/2" DP. 10,630' to 9,600', 15,000# Drag. 8/30/2003 00:00 - 01:00 1.00~ FISH P DECOMP POOH w/3-1/2" DP. 01:00 - 01:30 0.50 FISH P DECOMP POOH, Broke Out and L / D BHA 01:30 - 02:30 1.00 FISH P DECOMP Held PJSM. Broke Out and L / D Fish. Recovered: Cut Joint, X Nipple, 2 x 3-1/2" Pup Joints, PBR. Total Length: 51.63 02:30 - 04:30 2.00 FISH P 'DECOMP Held PJSM. Broke Fish out of Overshot. Broke Down Overshot, Removed Grapples and Millout Extension. Cleared and ~Cleaned Rig Floor. Brought New Overshot to Rig Floor and Strapped. 04:30 - 06:00 1.50 FISH P DECOMP Held PJSM. M / U Fishing BHA #3: Double Overshot and Printed: 9/8/2003 8:48:30AM BP Ex'pLORATION Page 5 of11 Operations Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From-To: HourS Task COde NpT Phase DescriptiOn of oPerations 8/30/2003 04:30 - 06:00 1.50 FISH P DECOMP Extension w/5-3/8" Double Grapples - XO - Bumper Jars - Oil Jars - XO - 9 x 6-1/4" DC - XO - Accelerator Jars - XO - XO - Pump Out Sub. Total BHA Length: 334.97'. 06:00 - 06:30 0.50 FISH P DECOMP Serviced Rig. 06:30 - 07:00 0.50 FISH P DECOMP Held PJSM. RIH w/Fishing BHA #3 on 3 1/2" DP to 1,270'. 07:00 - 08:30 1.50 FISH P DECOMP Held PJSM. M / U Kelly, Broke Out and Changed Out Upper Kelly Valve. Pressure Tested Valve to 250 psi Low / 5,000 psi High, OK. Stood Back Kelly. 08:30-09:30 1.00 FISH P DECOMP RIH w/ Fishing BHA #3 on 3-1/2" DP to 2,100'. Drawworks Air Shifter Malfunctioned. 09:30 - 11:30 2.00 FISH N RREP DECOMP Held PJSM. Repaired Drawworks, Replace Air Shifter. 11:30 - 14:00 2.50 FISH P DECOMP RIH w/Fishing BHA #3 on 3-1/2" DP to 10,659'. 14:00 - 18:00 4.00 FISH P DECOMP Held PJSM. M / U Kelly. Established Parameters, String Weight Up 158,000#, String Weight Down 127,000#, String Weight Rotating 140,000#. Torque Off Bottom 4,000 ft / lbs. Tagged Top of Fish 7' in On Kelly at 10,671'. Pick Up on Drill String Overshot Engaged. Released Overshot, Broke Out and L / D Joint #325, M / U 2 Drill Pipe Pup Joints, Total Length 26,59'. M / U Kelly. Engaged Pump, Pump Rate 1.5 bpm, 100 psi. Slacked Off and Tagged Fish, Observed Pressure Increase, Slacked Off and Stacked 25,000# on Fish, 13-1/2' in On Kelly. Attempted to Jar Overshot Farther onto Fish w/Little Success. Jarred Up w/40,000# Overpull, 1 Time and w/ 65,000# Overpull, 3 Times. Slacked Off to 15,000# Overpull and Rotated Drill String to the Right 35 Turns, Maximum Torque 6,500 ft / lbs, Released Torque and Got Back 5 turns. Pulled up to 90,000# Overpull, No Movement. Spudded Down w/Bumper Jars, Picked Up to 10,000# Overpull and Rotated Drill String to the Right 7 turns w/Maximum Torque of 6,000 ft / lbs, Rotated 18 turns w/15,000 ft / lbs Torque. Torque Dropped Off to 4,000 ft / lbs. Released Torque and Got Back 8 Turns. Pulled Up to 90,000# Overpull w/No Movement. Repeated the Process 3 Times, Maximum Torque 15,000 ft / lbs w/24 to 27 Turns, Got Back All Turns. Spudded Down w/Bumper Jars w/ 27,000#, Jarred Up w/90,000# Overpull, Slacked Off to 15,000# Overpull. Engaged Pump, Pump Rate 3 bpm, 800 psi. Rotated Drill String to the Right 20 turns w/Maximum Torque 13,000 ft / lbs, Torqued Dropped Off to 4,000 ft / lbs. Continued to Rotate Drill String w/a Total of 45 Turns, Torque Built to 8,000 to 10,000 ft / lbs, Then Broke Back to 5,000 to 7,000 ft / lbs After Every 7 to 10 Rotations. Released Torque and Got Back 10 Turns. Attempted to Release Overshot, Pump Rate 3 bpm, Pressure Increased to 1,150 psi, Lost 4-5 bbls Brine Every 10 Minutes. Pulled Up to 115,000# Overpull w/No Movement. Appears Packer Mandrel is Turning. 18:00 - 19:00 1.00 FISH P DECOMP Continued Attempt to Release K Anchor. Jarred Up w/90,000# Pulled up to 115,000# Overpull. Repeated Jarring Operation for 1 hour. 19:00 - 20:00 1.00 FISH P DECOMP Rotated Drill String to the Right w/Maximum Torque 12,000 ft / lbs, Torqued Dropped Off to 4,000 ft / lbs After 14 Turns, Continued to Rotate Drill String w/a Maximum Torque of 12,000 ft / lbs, w/Torque Breaking Back to 4,000 ft / lbs After Every 10 Rotations. Released Torque. Printed: 9/8/2003 8:48:30AM BP EXPLORATION Page'6 of 11 Operations Sumrna RePort Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From -~To Hours Task COde NPT Phase Description of Operations 8/30/2003 20:00 - 21:00 1.00 FISH P DECOMP Spudded Down w/Bumper Jars w/27,000#, Jarred Up w/ 90,000# Overpull, Repeated Jarring Operation for 1 Hour. 21:00 - 22:00 1.00 FISH P DECOMP . Pulled Up to 10,000# Overpull and Rotated Drill String. Increased Overpull in 5,000# Increments Up to 50,000# Overpull, Torque 4,500 ft / lbs. Attempted to Walk Grapples Off of Fish, No Success. 22:00 - 00:00 2.00 FISH P DECOMP Slacked Off and Stacked 35,000# on Fish. Rotated Drill String 65 RPM. Torqued Up from 4,000 ft / lbs to 8,000 ft / lbs, Broke Back to 4,000 ft / lbs. 35,000# Weight on Fish While Rotating, Attempted to Grind Down and / or Seized Up Mandrel. Made 6" of Downward Movement During Operation. '8/31/2003 00:00 - 03:30 3.50 FISH P DECOMP Applied 35,000# Overpull and Rotated Drill String, 40 RPM, Torque 4,000 ft / lbs to 12,000 ft / lbs. Attempted to Wear Down Packer Mandrel. 03:30 - 04:30 1.00 FISH , P DECOMP Jarred Up w/90,000# Overpull, No Movement. Rotated Drill String 70 RPM and Jarred Down Using Bumper Sub w/ 25,000#, No Movement. 04:30 - 07:00 2.50 FISH P DECOMP Applied 45,000# Overpull and Rotated Drill String, 40 RPM, Torque 5,000 ft / lbs to 16,000 ft / lbs. Attempted to Wear Down Packer Mandrel. 07:00 - 07:30 0.50 FISH P DECOMP Serviced Rig. Performed Derrick and Crown Inspection. :07:30 - 11:00 3.50 FISH N DPRB DECOMP Discussed and Evaluated Options w/Anchorage. Notified Schlumberger. Continued Jarring Operations, Jarred Up on Drill String w/65,000# to 75,000# Overpull. No Movement. Engaged Pump Periodically, Kept Hole Full. I11:00 - 12:30 1.50 FISH N DPRB DECOMP Held PJSM. Pulled Up and Set Slips on 3-1/2" DP w/120,000# Overpull. Broke Off and Stood Back Kelly. M / U Circulating Head and Line. Circulated Well, Pump Rate 1 bpm, 200 psi. 12:30 - 13:30 1.00 FISH N DPRB DECOMP Held PJSM. Slipped 42' of Drilling Line and Adjusted Brakes. 13:30 - 14:30 1.00 FISH N DPRB DECOMP Held PJSM w/Drilling Crew, Schlumberger Crew, Drilling Supervisor and Tool Pusher Concerning E-Line and String Shot Operations. R / U Schlumberger E-Line Equipment. 14:30-18:00 3.50 FISH N DPRB DECOMP M/U2x1-11/16"x6'WeightBars-5Strandsof80Grain String Shot, Total 400 Grains - CCL - Firing Head. Total Length 27.8'. RIH w/String Shot on E-Line, Set Down at 10,328' ELM, in Pump Out Sub, Worked Through 10,328, Set Down at 10,670' ELM, Top of Fish Inside Overshot Extension. Made Several Attempts to Work Through w/No Success. POOH w/ String Shot Assembly. Cleared Rig Floor, L / D String Shot Assembly. 18:00-20:00 2.00 FISH N DPRB DECOMP MIU2x1-11116"x6'WeightBarsw11-11116"Centralizer-7 Strands of 80 Grain String Shot, Total 560 Grains - CCL - Firing Head. Total Length 27.8'. :20:00-21:00 1.00 FISH N DPRB DECOMP Held PJSM. RIH w/ String Shot Assembly on E-Lineto 10,800'. Logged Down w/CCL. 21:00 - 21:30 0.50 FISH N DPRB DECOMP I Logged Up from 10,800' to 10,670', Correlated and Tied into ' Downhole CCL Run, BHA and Completion Tally. Set On Depth, . CCL at 10,683' / CCL to Top Shot Stand Off 4.0' - Top of String Shot at 10,687' Bottom of String Shot 10,695', Across Bottom of K Anchor Through Packer Mandrel. Fired String Shot, Observed Surface Indication of String Shot Firing. Monitored Well, Well Static. 21:30 - 22:00 0.50 FISH N DPRB DECOMP POOH w/String Shot Assembly. String Shot Fired. Rigged Printed: 9/8/2003 8:48:30 AM BP EXPLORATION Page 7 of 11 Operations Summary Report Legal Well Name: Z-28 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From-TO: Hours Task Code NPT PhaSe : Description of Operations 8/31/2003 21:30 - 22:00 0.50 FISH N DPRB DECOMP Schlumberger Equipment off to the Side. 22:00 - 00:00 2.00 FISH N DPRB DECOMP Held PJSM. M / U Kelly and Pulled Slips w/122,000# of Overpull. Slacked Off to Drill String Weight, 160,000#. Jarred Up w/90,000#, Repeated Jarring Operation for 30 Minutes. Pulled Up on Drill String to 30,000# Overpull, Rotated Drill String w/a Steady Torque 8,000 ft / lbs. Increased Overpull to 40,000#, Rotated Drill String w/a Steady Torque of 10,000 ft / lbs. Resumed Jarring Operations, Jarred Up w/90,000# Overpull, Continued Jarring Operations for 30 Minutes. Pulled Up on Drill String to 30,000# Overpull, Rotated Drill String w/a Steady Torque 10,000 ft / lbs. Increased Overpull to 50,000#, Rotated Drill String, Torque Steadily Rose from 8,000 ft / lbs to 16,000 ft / lbs. Torque Broke Back to 4,000 ft / lbs, String Weight dropped from 210,000# to 140,000#. Stopped Rotary Table and P / U on Drill String, String Free w/167,000# Up Weight. 9/1/2003 00:00 - 01:00 1.00 FISH P DECOMP Circulated and Filled Hole. Pump Rate 4 bpm, 850 psi. Shut Down Pump and Monitored Well, Fluid Level Slowly Dropped in Wellbore. 01:00 - 02:00 1.00 FISH P DECOMP Broke Off and Stood Back Kelly. R / D Schlumberger, Monitored Well, Fluid Down 30'. 02:00 - 08:30 6.50 FISH P DECOMP POOH w/Fishing BHA and 3-1/2" DP. 08:30 - 09:30 1.00 FISH P DECOMP Held PJSM. POOH w/BHA, Stood Back Drill Collars. Broke Out and L / D Accelerator, Oil Jars, Bumper Sub. Broke Out and L / D Overshot, Slick Stick and K Anchor. Total Length 16.28' From Top of Slick Stick to Top of Latch on K Anchor. Monitored Well, Well Stable. 09:30 - 10:30 1.00 FISH P DECOMP Held PJSM. M / U Packer Milling BHA: PRT w/Mill - 3 x Junk Baskets - Double Box XO - Bumper Jars - Oil Jars - XO - 9 x 6-1/4" DC - XO - Accelerator Jars - XO - XO. Total BHA Length: 343.57'. 10:30-12:00 1.50 FISH P DECOMP RIHw/BHA#4on31/2"DP. 12:00 - 13:30 1.50 FISH P DECOMP Held PJSM. Slipped and Cut 180' of Drilling Line. 13:30 - 15:00 1.50 FISH P DECOMP RIH w/BHA #4 on 3 1/2" DP, Total DP 108 stds + 1 Single. 15:00 - 15:30 0.50 FISH P DECOMP Held PJSM. M / U Kelly, Established Parameters. String Weight Up 165,000#, String Weight Down 125,000#, String Weight Rotating 143,000#. Torque off bottom 4,000 ft / lbs. Pump Rate 4 bpm, 1,100 psi. Tagged Top of Packer 14' in on Kelly at 10,684'. 15:30 - 17:30 2.00 FISH P DECOMP Held PJSM. Milled Packer from 10,684' to 10,686', WOM 10,000# - 15,000#, RPM 70, Torque 8,000 ft / lbs - 11,000 ft / lbs, Pump Rate 4 bpm, 1,100 psi. Pumped 25 bbl Hi-Vis Sweeps Every 1/2 Hour. 17:30- 18:30 1.00 FISH P DECOMP Milled Packer from 10,686' to 10,687', Hard Milling, WOM 15,000# - 20,000#, RPM 70, Torque 8,000 ft /lbs - 11,000 ft / lbs, Pump Rate 4 bpm, 1,100 psi. Torque Increased to 13,000 ft / lbs - 14,000 ft / lbs, WOM Dropped Off, Packer Fell Downhole. Pumped 25 bbl Hi-Vis Sweeps Every 1/2 Hour. 18:30 - 19:00 0.501 FISH P DECOMP Washed Down and Pushed Packer Down to 7" Liner Top at 10,723'. Gas to Surface Percolating in Wellbore. Printed: 9/8/2003 8:48:30AM ~ BP EXPLORATION Page;8 of 11 Operations Summa Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date , From TO HoUrs! Task Code NpT Phase Description of Operations 9/1/2003 19:00 - 21:30 2.50 FISH P DECOMP Pumped and Circulated Around 25 bbl Hi-Vis Sweep. Pump Rate 6 bpm, 2,000 psi. Slight Show of Gas on Bottoms Up. Circulated Sweep Out of Hole. Shut Down Pump, Monitored Well, Fluid Dropped in Wellbore. Broke Off, Blew Down and Stood Back Kelly. 21:30-00:00 2.50 FISH P DECOMP POOH w/ 3-1/2" DP. 9/2/2003 00:00 - 03:00 3.00 FISH P DECOMP POOH w/3-1/2" DP. 03:00 - 04:00 1.00 FISH P DECOMP Broke Out and L / D BHA, Stood Back Drill Collars. 04:00 - 05:00 1.00 FISH P DECOMP Broke Out and L / D Fish. 100% Recovery. Recovered: Milled Packer and Mill Out Extension - 3-1/2" Pup - 3-1/2" Tubing Joint - 2 X Nipples - 3 3-1/2" Pup Joints. Total Length: 74.62' 05:00 - 06:30 1.50 FISH P DECOMP Cleaned Out Junk Baskets. Cleared and Cleaned Rig Floor. 06:30 - 07:30 1.00 CLEAN P DECOMP Held PJSM. M / U Clean Out BHA: 8 1/2" Mill - 2 x 9-5/8" Casing Scrapers - 3 x Junk Baskets - XO - Bumper Sub - Oil Jars - XO - 9 x 6 1/4" Drill Collars - XO. Total Length 326.01'. 07:30 - 10:30 3.00 CLEAN P DECOMP RIH w/Cleanout BHA on 3 1/2" Drill Pipe to 10,720'. 10:30 - 11:30 1.00 CLEAN P DECOMP M / U Kelly, Established Parameters, String Weight Up 165,000#, String Weight Down 125,000#, String Weight Rotating 143,000#. Engaged Pump, Pump Rate 5 bpm, 1,200 psi. Washed Down to Top of 7" Liner at 10,726'. 11:30 ~ 14:00 2.50 CLEAN P DECOMP Pumped and Circulated Around 50 bbl Hi-Vis Sweep, Pump Rate 6 bpm, 1,600 psi. Total Volume Circulated 832 bbls. No Solids in Returns. Monitored Well, Fluid Dropping in Wellbore. 14:00- 18:00 4.00 CLEAN P DECOMP POOH w/3-1/2" DP. 18:00 - 20:00 2.00 CLEAN P DECOMP POOH, Broke Out and L / D 6-1/4" Drill Collars and Clean Out BHA. Cleaned Out Junk Baskets, Recovered 2 Gallons of Metal Cuttings. 20:00 - 20:30 0.50 CLEAN P DECOMP Cleared and Cleaned Rig Floor. 20:30 - 21:00 0.50 WHSUR P DECOMP Latched and Pulled Wear Bushing. R / U BOPE Test Equipment. 21:00 - 00:00 3.00 BOPSUR P DECOMP Held PJSM. Tested BOPE. Tested Lower Rams, Blind Rams, Choke Manifold, Valves, HCR, Kill Line, Choke Line, Floor Valves and IBOP to 3,500 psi High / 250 psi Low. Tested Annular Preventer to 3,500 psi High / 250 psi Low. All Tests Held f/5 Min. All Pressure Tests Held w/No Leaks or Pressure Loss. AOGCC Rep Chuck Scheve Waived Witness of BOP Test. 9/3/2003 00:00 - 01:00 1.00 BOPSUR P DECOMP R / D BOPE Test Equipment. Installed Wear Bushing. 01:00 - 02:00 1.00 CLEAN P DECOMP Held PJSM. M / U 7" Liner Clean Out BHA: 6-1/8" Mill - 2 x Junk Baskets - XO - Bumper Sub - Oil Jars - 9 x 4-3/4" DC. Total Length 310.61' 02:00 - 07:00 5.00 CLEAN P DECOMP RIH w/Clean Out BHA on 3-1/2" DP to 10,735'. Tagged Up Inside 7" Liner at 10,735'. 07:00 - 07:30 0.50 CLEAN P DECOMP Held PJSM. R / U and Reverse Circulated Bottoms Up, Pump Rate 4 bpm, 850 psi. No Metal Cuttings of Fill in Returns. 07:30 - 08:00 0.50 CLEAN P DECOMP RIH w/Clean Out BHA on 3-1/2" Drill Pipe to 11,020'. 08:00 - 08:30 0.50 CLEAN P DECOMP R / U and Reverse Circulated Bottoms Up, Pump Rate 4 bpm, 850 psi. No Metal Cuttings or Fill in Returns. Fluid loss 12 bph. 08:30 - 09:00 0.50 CLEAN P DECOMP RIH w/Clean Out BHA on 3-1/2" Drill Pipe to 11,300'. Pushed Junk Ahead of Mill. 09:00 - 09:30 0.50 CLEAN P DECOMP R / U and Reverse Circulated Bottoms Up, Pump Rate 4 bpm, 850 psi. No Metal Cuttings or Fill in Returns. Fluid loss 10 bph. 09:30 - 10:00 0.50 CLEAN P DECOMP RIH w/Clean Out BHA on 3-1/2" Drill Pipe to 11,419'. Tagged Printed: 9/8/2003 8:48:30AM BP EXPLORATION Page, 9 of 11 Operations SummarY RepOrt Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8~25~2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9~6~2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From To Hours Task Code NPT Phase Description of operations 9~3~2003 09:30 - 10:00 0.50 CLEAN P DECOMP Up Hard at 11,419'. R / U and Reverse Circulated Bottoms Up, Pump Rate 4 bpm, 850 psi. No Metal Cuttings or Fill in Returns. Attempted to Work Drill String Down Hole, No Success. R / U and Circulated Bottoms Up the Long Way, Pump Rate 5.5 bpm, 1,600 psi. Attempted to Wash Down, No Success. 10:00 - 18:00 8.00 CLEAN P DECOMP ~M / U Kelly, Established Parameters; String Weight Up i175,000#, String Weight Down 120,000#, String Weight Rotating 143,000#. Pump Rate 4 bpm, 850 psi. Milled Junk from 11,419'- 11,437', WOM 3,000# - 5,000#, RPM 60, Torque 8,000 ft / lbs. 18:00 - 20:30 2.50 CLEAN P ,DECOMP P / U to Make Connection, Could Not Get Down and Place Rotary Bushing in Table. Worked Drill String with No Success. Broke Off Joint of Drill Pipe. M / U Kelly, Able to Get Down and Place Rotary Bushing In Table. Worked Drill String Through 11,420' - 11,437', RPM 60, Torque 4,500 ft / lbs, Pump Rate 4 bpm, 850 psi. Drill String Able to Pass 11,429' w/Rotation. Shut Down Rotary Table and P / U on Drill String, Attempted to Pass 11,429' w/out Rotation w/No Success. Made Several Attempts w/out Rotation w/No Success. Engaged Rotary Table, RPM 60, RIH, Able to Pass 11,429' w/No Problem. Pumped 40 bbl Hi-Vis Sweep w/2 Drums of FIo-Lube. Made New Connection and Worked Drill String While Waiting f/Lube Pill to Be Pumped Into Wellbore. With Lube Pill In Wellbore, Worked Drill String Down, Attempted to Pass 11,429 and Place Rotary Bushing in Table Successfully. Suspect Bad Spot in 7" Liner at 11,429'. With Lube Pill In Wellbore, String Weight Up Decreased from 175,000# to 165,000#, String Weight Down Increased from 120,000# to 127,000#. 20:30 - 21:00 0.50 CLEAN P DECOMP Washed Down from 11,429' to 11,465'. Pump Rate 4 bpm, 850 psi. Tagged Up at 11,465'. 21:00 - 21:30 0.50 CLEAN P DECOMP R / U and Reverse Circulated Bottoms Up, Pump Rate 5 bpm, 1,500 psi. Very Fine Metal Cuttings and Slight Show of Sand in Returns, Circulated Until Returns Where Clean. Fluid loss 5 bph. 21:30 - 00:00 2.50 CLEAN P DECOMP Milled and Pushed Junk from 11,465' - 11,593', WOM 10,000# - 15,000#, RPM 72, Torque 8,000 ft / lbs - 10,000 ft / lbs, Pump Rate 5 bpm, 1,500 psi. Fluid loss 5 bph. String Weight Up 165,000#, String Weight Up 127,000#, String Weight Rotating 143,000#. 9/4/2003 00:00 - 03:30 3.50 CLEAN P DECOMP Milled, Washed and Pushed Junk from 11,593' - 11,785', WOM 5,000# - 15,000#, RPM 72, Torque 5,000 ft / lbs - 8,000 ft / lbs, Pump Rate 5 bpm, 1,250 psi. String Weight Up 163,000#, String Weight Down 127,000#, String Weight Rotating 143,000#. 03:30 - 06:30 3.00 CLEAN P DECOMP Pumped and Circulated Around 40 bbl Hi-Vis Sweep. Pump Rate 6 bpm, 1,900 psi. Rotated and Reciprocated Drill String While Circulating. 06:30 - 09:00 2.50 CLEAN P DECOMP R / U to Reverse Circulate. Attempted to Reverse Circulate. Drill String Hung Up, Worked Drill String Free w/40,000# of Overpull. Attempted to Reverse Circulate, Drill String Plugged Printed: 9~8~2003 8:48:30AM · BP EXPLORATION Page 10of 11 OperatiOns Summary :Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES Date From, To Hours Task:COde NPT Phase DescriPtion of Operations .9/4/2003 06:30 - 09:00 2.50 CLEAN P DECOMP Off. Lined Up and Pumped Down Drill String and Regained Circulation. Shut Down Pump and Monitored Well, Well Static. Broke Off, Blew Down and Stood Back Kelly. 09:00- 16:30 7.50 CLEAN P DECOMP POOH, L / D 3-1/2" DP. 16:30 - 17:30 1.00 CLEAN P DECOMP Broke Out and L / D Clean Out BHA. Found Flat Bar f/A String Shot Wedged Up Inside Mill. Junk Mill 100% Used Up w/ Rounded Edges. Cleaned Out and Recovered 1/2 Gallon of Metal Cuttings from Junk Baskets. 17:30 - 18:00 0.50 WHSUR P COMP M / U Retrieving Tool, RIH, Latched and Retrieved Wear Bushing. 18:00 - 19:00 1.00 RUNCOI~P COMP Cleared and Cleaned Rig Floor. 19:00 - 20:30 1.50 RUNCOI~P COMP R / D 3-1/2" DP Handling Equipment, R / U 4-1/2" 13Cr Tubing Handling Equipment. 20:30 o 21:00 0.50 RUNCOI~ COMP Held PJSM w/Rig Crew, Baker Reps, Casing Hand, Tour Pusher and Drilling Supervisor. 21:00 - 22:30 1.50 RUNCOI~' COMP M / U 4-1/2" Tail Pipe: WLEG Assembly w/XN Nipple w/ RHC-M Sleeve - 2 Joints 4-1/2" 12.6# 13Cr80 Vam ACE Tubing - Lower X Nipple Assembly - 9-5/8" x 4-1/2" Baker S-3 Packer Assembly - Upper X Nipple Assembly. Torque Turned Connections, M / U Torque 3,620 ft / lbs. BAKERLOC'D All Connections Below Packer. 22:30 - 00:00 1.50 RUNCOI~ COMP M / U and RIH w/4-1/2" 12.6# 13Cr80 Vam ACE Tubing. Torque Turned All Connections, M / U Torque 3,620 ft / lbs. 9/5/2003 00:00 - 14:30 14.50 RUNCO~ COMP M / U and RIH w/252 Joints 4-1/2" 12.6# 13Cr80 Vain ACE Tubing. Torque Turned All Connections, M / U Torque 3,620 ft / lbs. 14:30 - 15:00 0.50 RUNCOr~ COMP M / U Tubing Hanger, XO and Landing Joint. String Weight Up 115,000#, String Weight Down 95,000#. M / U Circulating Head and Line. 15:00 - 16:00 1.001 RUNCO~ P COMP R / D 4-1/2" 13Cr Tubing Handling Equipment. Weighted Up Clean 1% KCL Water to 8.7 ppg. 16:00 - 21:00 5.00 RUNCO~ P COMP Tested Lines to 3,000 psi, OK. Reverse Circulated 165 bbls of 140 deg 8.7 ppg Brine, Followed by 570 bbls 140 deg 8.7 ppg Brine w/Corrosion Inhibitor. Pump Rate 3 bpm, 200 psi. 21:00 - 21:30 0.50 RUNCOkP COMP Dropped Ball / Rod Assembly. RIH and Landed Tubing Hanger. RILDS. Completion Equipment Set At The Following Depths: Item Length Depth WLEG / XN Nipple Assembly 22.46' 10,792.80' 2 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 81.71' 10,688.63' X Nipple Assembly 20.91' 10,667.72' 9-5/8" x 4-1/2" S-3 Packer Assembly 23.99' 10,643.73' X Nipple Assembly 20.88' 10,622.85' 1 Jt 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 41.98' 10,580.87' #1 GLM Assembly 28.36' 10,552.51' 25 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 1,031.61' 9,520.90' Printed: 9/8/2003 8:48:30 AM BP EXPLORATION Page 11 of 11 Operati°ns Summary Report Legal Well Name: Z-26 Common Well Name: Z-26 Spud Date: 5/13/1989 Event Name: WORKOVER Start: 8/25/2003 End: 9/6/2003 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 9/6/2003 Rig Name: NABORS 4ES Rig Number: 4ES ~Date From- TO HoUrs Task Code NPT PhaSe DeScription of OPeratiOns 9/5/2003 21:00 - 21:30 0.50 RUNCOI~ COMP #2 GLM Assembly 28.42' 9,492.48' 32 Jts 4-1/2" 12.6# 13Cr80 Vain ACE Tbg 1,312.13' 8,180.35' #3 GLM Assembly 28.37' 8,151.98' 31 Jts 4-1/2" 12.6# 13Cr80 Vain ACE Tbg 1,286.06' 6,865.92' #4 GLM Assembly 28.49' 6,837.43' 38 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 1,587.39' 5,250.04' #5 GLM Assembly 28.36' 5,221.68' 48 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 2,008.03' 3,213.65' #6 GLM Assembly w/Shr Valve 28.39' 3,185.26' 23 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 963.91' 2,221.35' X Nipple Assembly 20.84' 2,200.51' 52 Jts 4-1/2" 12.6# 13Cr80 Vam ACE Tbg 2,176.88' 23.63' Tubing Hanger 3.17' 20.46' 21:30 - 22:30 1.00 RUNCOI~P COMP Held PJSM. R / U and Tested Lines to 3,500 psi, OK. 22:30 - 23:30 1.00 RUNCOI~' COMP Pressured Up on Tubing To 2,500 psi To Set Packer, Continued To Pressure Up on Tubing To 3,500 psi. Tested Tubing f/30 Minutes, OK. Bled Tubing Pressure Down to 1,500 ~si and Shut In. Tested 9-5/8" x 4-1/2" Annulus to 3,500 psi f/ 30 Minutes, OK. 23:30 - 00:00 0.50 RUNCOI~ COMP Bled Down Tubing Pressure and Observed DCK Valve Shear. Bled Down All Pressures. Pumped Down Both Annulus and Tubing to Ensure DCK Valve Fully Sheared, Good Communication Through Both IA and Tubing. Pump Rate 3 bpm, 200 psi. 9/6/2003 00:00 - 01:00 1.00 RUNCOI~ COMP Blew Down and R / D Lines. Broke Out and L / D Landing Joint and XO. Set TWC and Tested to 1,000 psi, OK. 01:00 - 02:00 1.00 BOPSUF P COMP Held PJSM. N / D BOPE. 02:00 - 03:30 1.50 WHSUR P COMP Held PJSM. N / U Adapter Flange and Production Tree. Tested Hanger, Neck Seal and Void to 5,000 psi, OK. Tested Tree to 5,000 psi, OK. 03 30 - 04:30 1.00 WHSUR P COMP Held PJSM. R / U DSM Lubricator, Pulled TWC, R / D DSM. 04:30 07:00 2.50 WHSUR P COMP Held PJSM. R / U Little Red Hot Oil, Pressure Tested Lines to 3,000 psi, OK. Pumped 160 bbls of Diesel Freeze Protect Down Annulus. Pump Rate 3 bpm, 450 psi. R / D Little Red. Opened Tree Valves and U-Tubed Diesel Freeze Protect. 07:00 - 07:30 0.50 WHSUR P COMP Blew Down and R / D Lines. Removed Secondary Annulus Valve. Set BPV. 07:30 - 08:00 0.50 WHSUR P COMP Installed Blind Flange on Tree. Secured Well. Release Rig at 0800 hrs, 09 / 06 / 2003. Printed: 9/8/2003 8:48:30AM MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Julie Heusser, Commissioner THRU: Tom Maunder, P. I. Supervisor FROM: Lou Gdmaldi, DATE: April 21, 2001 SUBJECT: Petroleum Inspector SVS Tests Prudhoe Bay Field Saturday, A~)ril 21, 2001; I witnessed' the three-month SVS retests on BPX Z pad in~~m~,~ngArea ~-the Prudhoe Bay Field. Merv Liddelow performed the SVS tests today. The test results (one SSV Failure) are noted on the accompanied SVS test spreadsheet. All well houses were in "OK" condition. ¥~,w~theflrstexpetienCe,-f':h~e=-had~wi~thenew S¥ control' system on Z pad and~foUnd!~.it~o~ ~' ~:~:.~~L ~..~~~tu,res t~ay. were .somewhat mild (+15~,~ ~~~E~:~ldu~..dufing: ne~ winters cold s~~~~?Z:Sand~Z~8~~W:~ingSS~s .(+-2.min~utes), Me~ ~lled the ~~~.~--.~:.-~/d:~{he~;~reb~fhgwe~~ on. ~e,~.l~:leff the pad. The pad is being used as a staging area for some pipeline fabrication and has some equipment and material stored on it. This was kept for the most part neat and orderly. SUMMARY: I witnessed the three-month SVS retests on Z pad' in the Prudhoe Bay Field. 20 wells, 40 components, 34 Wellhouse inspections, no problems. Attachments; SVS PBU Z pad 4-21-01 LG.XLS NON-CONFIDENTIAL SVS PBU Z pad 4-214)1 LG © © Alaska Oil and Gas Conservation Comml~iion Safety Valve System Test Report Operator: BPX ... Operator Rep:, Merv L. idde .lo.,,W. AOGCC Rep: Lou Grimaldi Submitted By: ,,~Lo,u (3... ., Date: Field/U~~:, Pm, ,dhoe Bay Field,, Z p~,, Separator psi: LPS 159 HPS -- 21-Apr Well Permit Separ ~ Set ' - L/P Test Test Test Date Oil, WAG, Numb. er Number PSI PSI Trip Code Co~e Code .Pas~ed GAS.orCYCLI~ z-o ' 88o6 0" ....... Z-02A 1960430 · i , , i. . i , jIl , I. II , I , I ' i I, I I Z-03 1971310 1i59 125' 115 P I I, I I , . , , Il I I I . I I I I J I I I' Z-04 1891230 .... ' .... . ,,, Z-05 1900780 159 125 1~5 P P ' ' I I I I I I I I I ,Ill. , Il I I ~1 , I Z-06 1880320 159 - 125 -125 e P z.07A , 1931.100 .................... Z'-08A' 1931'280''"'159' '1'25 -12o P" ' P ...... Z-09' ' 1890850 ...... ' ~ " ........ . Z-10 1891160 _ , .... ., .... p P Z-11 1900720 159 125 125. · , ............. · 'I ' , I I , I Ill II I I I II II Z-12 ' 1891020 ' ..... . Z-13 19oo940 ,, ,,,!'5.9' ' 12~' '., "i~5 "1~ ..... P Z. 14A 1980~10 ..... ' ........ Z-15' 1880880 ........................ Z-16 1920120 159 125 '125 P P , , [ - , , , I , , 1. I , ,,.l I , I , , 11 I , II I I I I I I Z-17. 1,8913901 159 , .125 ,125 '. P P', ,.. ....... Z-18 1890960 Z'-19 1920230 ............. Z-20 1881000 i i i i .n ,1, Z-21 . 1890420, 159 1'2'5 1~5 'P ' P ' . . t .... Z-22B' 1960350' ' 15~}' "125 ' 11~' 'P P Z-23A 1950430 159' '125- 125 P P Z-~4 18901'80 159 ' '125 ' i2'S · i~' /::':~57: ' .rcd,~'.3 ~ ~'~\'~ ~..? ' ' Z-25" ' i88i' 9o" '159..... i25 "i25 P'" P ~~-~- 1890520' '159 ' '125 ' 125 ' 'P .... P ...... Z-27 1900310 "159 '-"'12~ 1'25 i3 P .... , , Z-28' 1881270 ....... Z-29 '' 1890650 159 '12'~ 120 " P P ............... Z-30 i'900230 ' 159 125: '120 "'P' P .............. I , . i . , I ; i I I I . I I I I I Il I I J Z-31 1881120 ,Z-32B ..... 1970340 1'59 ,1251 125 , P,., P Z-33A '1890050 .... Z-35 1980930 Z-3S '" 1980600 ....159 125 ' 1'20'' P ..... P " ........ RJF 1/16/01 Page 1 of 2 SVS PBU Z pad 4-21-94.L.@ Well Number Wells: Permit Number 20 Separ Set PSI PSI Components: Trip 40 Failures: Code[Code]Code 1 · Fai Passed ~ure Rate: Oil, WAG, GIN& GAS or CYCLE 2.50% ~ eo o~ Remarks: Z.'-5 & 8 Long closure times on SSV. I RJF 1/16/01 Page 2 of 2 SVS PBU Z pad 4-21-01 LG MEMORANDUM State of Alaska -Alaska Oil and Gas .Conservation Commission TO: Julie Heusser ~. ~ Commissioner DATE: January 23, 2001 THRU: FROM: Tom Maunder, ~.~~,~cL~7 P.. I. supervisor . ©~1;)~-o \ Jeff Jones, .SUBJECT: Petroleum Inspector Safety ValVe Tests Prudhoe Bay. Unit Fridav. JanUary 19. 2001 :..I traveled to BPX's Z Pad in the.Prudhoe Bay Field and witnessed surface safety valve system'testing. Merv Liddelow was the BPX. representative in charge of testing. As the attached AO.G_CC_ Safety ~/alve System Test Report indicates I witnessed the testing of 21 Wells and 43 components with 6failUreS~- The pilot on well Z-03' failed to trip and the pilot on-well Z-08 was frOzen and 'once thawed it passed.a retest but the SSV on this well had an unacceptable closure time (12-min.). The SSV on well Z-18 also had an unacceptable clOSure time (15-rain;) and the S~ SV's on wells Z-22B and Z-24 failed to pressure test. The' high failure rate on Z Pad requires it be placed on a 90- day test interval. Mr. Liddlow indicated to me today that all failures have been repaired except the Slow SSV closure of wells Z.O8A and Z-18. The hydraulic lines on these wells need to be.flushed and he' .has arranged for'the maintenance crew to perform the work. Wellhouse inspections were COnducted on the 21 wells tested 'with no exceptions noted. Summary:. I witnesSed SVS.testing at BPX's PBU Z Pad. 21 wells, 43 CompOnents, 6 failures. 13.9% failure rate. 21 wellhouse inspections conducted. Affa _chmept: SVS PBU Z Pad 1,19-01 JJ - 11 © Alaska Oil and Gas Conservation CommissiOn Safety Valve System Test Report Operator: BPX Operator Rep: Merv Liddelow AOC~CRep: . JeffJones Submitted By: Jeff Jones Date: Field/U~nd: PBF/PBU/Z Pnd iii ii i1 i r I _ II I I Separator psi: LPS, !,59 HPS 1/19/01 ......... ii Well' Permit Separ Set ' L/P Te~t. Test Tut ' -Date o~, WAG, GI~J, Number Numb.er , PSI PSI'~ Trip Code Code Code Passed oas or cYci~ z-o~ . ~ssoc~o, ~59 ~i5' .~2,5 , 'P //' ................ orr . i i i i , Z-02A 1960430· ...... Z-03 1971310 159 ' 125' 0 1 P ' OIL - Z-04 1891230 . - Z'05 '1900780 159 .. 125 ' '.-12O P P ' - -OIL _ . . -I Z-06 1880320 " .. ' , . . . Z-07A 1931'100 . il i _ i i t i . Z-~SA. 1'931280 . '159 .125 0.' 2 43 i./2~bi ' ' OIL 89o85o · ,' .. '-. .S ii o- ..... ." · .. ..... Z-lj i'900720 15'9 .125 125! P. P OIL , Z-12 1891020 . - I , 11 i iiii . . i ' ' - - Z-13 1900940 · 159 125 .125 P P ' OIL Z."---14A 1980510" ' ' ...... · ' ...... ......... Ill Ill, I I , l! I .! ,.l Il .' ! I I llll I I I II I Z- 15 1880880 7,-16 .... 1926120' '159" 125 .... .-'1'25p '" ii ' ' OIL ii i il . Z-17 1891390 159 125 125 P P.' OIL Z-18 189~960 '159 ' 125 i~'0' P 43 ' OIL . I, i , u , i , , , 1111 Ill I I I I , I _ I Z-19 .1920230 . · z-2o .' i88]ooo ........... . .... ' .... Z-21 1890420 . Z-22B 1960350 1'59 125.' .:125-' P '4" '" OIL Z-23A 1950430 -' " - _ . 'Z'-24 1890180. i59 '" i25 .. ,13,0 ...e 4 ' . OIL .Z.25 ,, 188~]'596 ' '159 ' 125 ' 125 P P .. OIL Z-26 -~. ~¢~ 159 125 125 .. P P ..' ' OIL Z-27: ' 1900310 159 · 125 ' 125 P P ' OIL z-28 ' ' '1~8'i27o ................ Z-29 1890650 " ' i5~ 125 '" 120 P P ~ ' OILi Z-30 ' "1900230 ' '15~" ..... i2'~: 1'15 P P ! - ' Olul 11 i , , i i i i _ J i i ill , i i Z-31 . ..1881120 .... . Z-32B 1970340 "15~ .' ,12,5, ,,. 1~5, i", P ..... P OIL Z-33A 189005~' ' 2750 2600 2500 P ' ' i~ .....P '' GINJ Z-35 "i -' '1'~8'0930 159 125 · 120 . P P " " " 'OIL 1/24/01 Page 1 of 2 SV8 PBU Z Pad 1-19-01 JJ. xb Well Permit' Separ' ~Set L/P Test Test Test Date Number Number PSI . psi Trip Code Code. Code Passed =Z-38 1980600 · 159 125 120 .e e. OIL · Il i I I I I I I I I I I I I I Wells: ,, 21 Components: 43 Failures: 6 -- Failure Rate: 13.9°/d1~o o~v Remarks:. Z-08A SSV failed: 12 minute close. Z-I 8 SSV' failed: 15 minute close, frozen pilot .. - - -. j i i iii ' ii i i i - . -.. _ - - _ i i' i ill thaw~ & p~sed r~te..st. ...... . _ 11 I . I i I I ] J i j II [.111 · J _._1.1 L _ I I . tJi iji I iii I i_ _ ] . i .., il i l1 i i _ i ill __ Il,, , 1/24/01 Page 2 of 2 SVS PBU Z Pad 1-19-01 JJ.xls STATE OF ALASKA ~ OIL AND GAS CONSERVATION COMMI : REPORT OF SUNDRY WELL OPERATIONS: 1. Operations performed: Operation shutdown Pull tubing 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 721'SNL,3108'WEL, SEC. 19, T11N, R12E At top of productive interval 1953'SNL,4100'WEL, SEC. 17, TI 1 N, R 12E At effective depth 1886'SNL, 4100'WEL, SEC. 17, TI 1N, R 12E At total depth 1878'SNL, 4078'WEL, SEC. 17, T11N, R12E 12. Present well condition summary Total depth: measured true vertical Stimulate Alter casing Plugging Repair well 5. Type of Well: Development ~ Exploratory Stratigraphlo Service ORIGINAL 11850' feet Plugs (measured) 9115' feet Perforate x Other 6. Datum elevation (DF or KB) KBE=89.47 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Z.26(12-17-11-12) 9. Permit number/approval number ~5£ / 10. APl number 50- 029-21945 11. Field/Pool Prudhoe Oil Pool Effective depth: measured 11808' feet Junk (measured) true vertical 9096' feet Casing Length Size Cemented Structural -- Conductor 80' 20" 8 cu yds Surface 2592' 13 3/8" 3684 cu ft. Intermediate 10956' 9 5/8" 2365 cu ft. Production -- Liner 1111' 7" 368 cuft Perforation depth: measured 11630'-11670' true vertical subsea8917'-8938' Tubing (size, grade, and measured depth) 3 1/2",9.2 L-80 to 10798' Packers and SSSV (type and measured depth) 9 5/8" TIW @ 10691, SSSV@2092 13. Stimulation or cement squeeze summary See Attachment Measured depth True vertical depth BKB 110 110 2622 2622 10986 8599 10739-11850 8419'-9096' AUG 30 1995 ~ & Gas Cons. Commlasioa '-"-..,~, ~Gho~e Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Averaae Production or Injection Data OiI-Bbl Gas-Mcr Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 0 Subsequent to operation 0 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations Oil X Gas Suspended 17. I hereby cprtify that the foj:eg~ing,~ t. rue and correct to the best of my knowledge. Signed~/~~// ~r/~~' Title Senior TechnicalAs$istantll Form 10-4d4 Rev 06/15/88--/ ' ~ '~ ' 1079 3958 24 1492 5434 72 16. Status of well classification as: 292 332 Service Date r(P/~ SUBMIT IN DOPL~TE~.~ 06/30/94 WELL Z-26 (12-17-11-12) Addperf O_neration The following additional interval were perforated using 2 118" 6 SPF, 0° orientation and 0° phasing. 11436'-11454'MD LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: RE: 31 January 1995 Transmittal of Data ECC #: 3838.04 Sent by: MAIL Data: PLS Dear Sir/Madam, Reference: BP Z-26 PRUDHOE BAY NORTH SLOPEA, AK Enclosed, please find the data as described below: Prints/Films: 1 PLS/STATIC FNL BL+RF Run # 1 Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Or FAX to (907) 563-7803 Received by: Date: Flease sign and return %o; technical Data "~'L:,':~.t'!on (Alaska RECEIVI D FEB Alaska Oil & r3an (',ohs. Commis,~iun Anchorage JUL 2 5 994 Al=..sP, a t3~.l & Gas Cons. Anchorage ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 16 July 1~94 RE: Transmittal of Data Sent by: ANCHORAGE EXPRS Dear Sir/Madam, Enclosed, please find the data as described below: WELL ~ DESCRIPTION /1PFC/GR/CCL FINAL BL i PFC/GR/CCL RF SEPIA R-04 (22-05-11-13) . ~...4~'[q B-29 (32-31-11-14) gZ-5 D-21 (3 -25-11-13) ~"" O~ W-OS (11-26-11-12) E-13 (01-t1-13) ~ ~.....- ~2 L~ D-23 (22-24-11-13) .,~PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA //i PFC/PERF FINAL BL 1 PFC/PERF RF'SEPIA ,/I PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA ~ PFC/GR/CCL FINAL BL 1 PFC/GR/CCL RF SEPIA /~TEMPERATURE FINAL BL 1 TEMP. FINAL RF SEPIA .1/PFC/GR/CCL FINAL BL 1 PFC/GR/CCL RF SEPIA D-16 (34-23-11-13) /'/ PFC/GR/CCL FINAL BL 1 PFC/GR/CCLRF SEPIA /'1 PFC/GR/CCL FINAL BL 1 PFC/GR/CCL RF SEPIA z-26 /1' PFC/Ca/eCL FINAL BL 1 PFC/GR/CCL RF SEPIA .~1 PFC/GR/CCL FINAL BL 1 PFC/GR/CCL RF SEPIA cont/ ECC No. Run # 1 5627.06 Run # i !~ Run # i 5818.05 Run # I Run # I 6074.05 Run # I Run # I 4117.04 Run # i Run # i 5955.02 Run # i Run # i 5660.02 Run # i Run # I 5831.02 Run # i Run # 1 5607.07 Run # I Run # i 3838.03 Run # I Run # i 6237.00 Run # I Run # i 6232.01 Run # 1 ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Dat~: 15 May 1994 Transmittal of Data Sent by: U.S. MAIL Dear Sir/Madam, Enclosed, please find the data as described below: WELL E-02 (34-06-11-14) ~qq- HL z-21 C-07 (31-24-11-13) 'f~- 5L z-26 ~q~-15 H-32 (42-20-11-13) DESCRIPTION PLS/SP~ FINAL ~L PLS/SPNR RF SEPIA DTEMP/GR RF SEPIA PFC/PER~ RFSEPIA P~C/PER~ FINAL SL PFC/PER~ RF SEPIA ~_~H-26 (23-16-11-13) ~q-~oL z-12 (21-30-11-12) .--I PFC/PERF FINAL BL i PFC/PERF RF SEPIA '~PFC/PERF FINAL BL i PFC/PERF RF SEPIA fl PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /1 PFC/PERF FINAL BL i PFC/PERF RF SEPIA ConE/ ECC No. Run # 1 5938.01 Run # Run # i 5780.04 Run'# i Run # 1 4166.03 Run # i Run # 1 3838.02 Run # 1 Run # i 6170.03 Run # I Run # 1 4892.01 Run # i Run # 1 4031.02 Run # i Run # i 6083.07 Run # 1 Run # i 2187.04 Run # i REPORT OF SUNDRY WELL OPERATIONS _ . . . 0 tlon shutdown Stimulate X Plu in " Perforate 3( ~ 1. Operations pertormea: pera' gg g . ~,~, Pull tubing Alter casing Repair well Other 2. Name of Operator I 5. Type of Well: 6. Datum elevation (DF or KB) BP Exploration (Alaska) Inc. I D~v_ elop .ment ~ KBE--89.4~eet 3. Address I Stratigraphic 7. Unit or Property nam P. O. Box 196612, Anchorage, Alaska 99519-6612 I Service Prudhoe Bay Unit 4. Location of Well at surface 8. Well number 721'SNL,3108'WEL, SEC. 19, T11N, R12E At top of productive interval 1953'SNL, 4100'WEL, SEC. 17, T11N, R12E At effective depth 1886'SNL, 4100'WEL, SEC. 17, T11N, R12E At total depth 18 78'SNL, 40 78'WEL, SEC. 17, T11N, R12E 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical 11850'feet Plugs (measured) 9115'feet 11808'feet Junk (measured) 9096'~eet' Casing Length Size Cemented Structural -- Conductor 80' 20" 8 cu yds Surface 2592' 13 3/8" 3684 cu fL intermediate 10956' 9 5/8" 2365 cu ft. Production -- Liner 1111' 7" 368 cuft Perforation depth: measured 11630'-11670' true vertical subsea8917'-8938' Tubing (size, grade, and measured depth) 3 1/2",9.2 L-80 to 10798' Packers and SSSV (type and measured depth) 9 5/8" TlW @ 10691, SSSV@2092 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure 14. Z-26(12-17-11-12) 9. Permit number/approval number 89-52/ 10. APl number 50- 029-21945 11. Field/Pool Prudhoe Oil Pool Measured depth 110 2822 10986 10739-11850 True vertical depth BKB 110 2622 8599 8419'-9096' RECEIVED MAR 1,5 i~tl~ Alaska 011 & Gas Cons. C0mmissiO~ Anchorage Representative DaiLy Average Production or Iniection Data OiI-Bbl Gas-Md Water-Bbl Casing Pressure Prior to well operation Subsequent to operation 15. Attachments Tubing Pressure Copies of Logs and Surveys run Daily Report of Well Operations 180 777 553 1689 400 1167 1210 1061 _ il 6. Status of well classification as: Oil X Gas Suspended 17. I hereby c~rtify that the foregoing is true and correct to the best of my knowledge. S,~lned C~ rt t~,~)) ~L~ ('~, ~~ T~leSeniorT~hn~sistant, Form 1 ~04 ~e~ 0~15/88 ~ Service 282 315 o, o SUBMIT IN DUPLICATE 3/16/91 WELL z.26(1:~.17.11-12~ PBU ~[.RWO/Re_nerf A NRWO was performed using the fluids: 154 bbls PW(W.2% Surf) to load well 5 bbls EW 100 bbls ACID 7 bbls EW 87 bbls PW 5 bbls EW(Preflush) 24 bbls EDTA(Preflush) 26 bbls Cement 24 bbls EW(Spacer) 24 bbls Duo Polymer(Contaminant-Recovered) 1 bbls PW(Displacement) 474 bbls PW(Reverse Out) 66 bbls PW(Jet Pass) 162 bbls PW(Final Reverse Out) 32 bbls MEOH(Freeze Protection CT) 19 bbls MEOH(Freeze Protection Well) Well Cleaned Out to 11772' 280 bbls Load Fluid Behind Pipe 22 bbls Cement Recovered(Includes 3 bbls Cement Not Pumped) ACID: 15% HCL/10% XYLENE, 1% WS-36, .4% HAI-85, .45% FBRCHEK-A EDTA: 2.5% EDTA, 2.5% KCL, 16% MUSOL, .5% LS-300 Cement: 16.1 PPG Premium Cement, .5% HR-12, .5% CFR-3, 1.0% BENTONITE, 1.75GPS LATEX 2000, .26 (}PS 434B, .05 D-AIR-3 04/6/91 The following intervals were reperforated using 3 3/8 gun diameter, 4 SPF, random orientation and 0° phasing. 11530' - 11540' MD BKB 11562' - 11570' MD BKB 11574' - 11620' MD BKB 11630' - 11670' MD BKB fjh 10/15/92 REEEIVED STATE OF ALASKA S~'N A OIL AND GAS CONSERVATION COMMI REPORT OF SUNDRY WELL OPERATIONS '1. Operations performed: Operation shutdown Pull tubing × 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 721'SNL,3108'WEL, SEC. 19, T11N, R12E At top of productive interval 1953'SNL, 4100'WEL, SEC. 17, T11N, R12E At effective depth 1886'SNL, 4100'WEL, SEC. 17, T11N, R12E At total depth 18 78°SNL, 40 78°WEL, SEC. 17, T11N, R12E Stimulate Repair well 5. Type of Well: Development Exploratory Stratigraphic Alter casing Plugging . Perforate ////,/~,, I Other , 6. Datum elevation (DF or KB) ' ~! KBE--8g.47 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Z-26(12-17-11-12) 9. Permit number/approval number 89-52/90-550 10. APl number 50- 029-21945 11. Field/Pool Prudhoe Oil Pool 12. Present well condition summary Total depth: measured true vertical 11850'feet Plugs (measured) 9115'feet Effective depth: measured 11808'feet Junk (measured) true vertical 90961est Casing Length Size Cemented Structural -- Conductor 80' 20" 8 cu yds Surface 2592' 13 3/8" 3684 cu ft. Intermediate 10956' 9 5/8" 2365 cu ft. Production -- Liner 1111' 7" 368 cuft Perforation depth: measured 11630'-11670' Measured depth 110 2622 10986 10739-11850 True vertical depth BKB 110 2622 8599 8419'-9096' true vertical subsea8917'-8938' Tubing (size, grade, and measured depth) 3 1/2',9.2 L-80 to 10798' RECEIVED Packers and SSSV (type and measured depth) 9 5/8" TIW @ 10691, SSSV@2092 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) MAR 11 1993 Alaska 0JJ & Gas Cons. Commission Anchorage 14. Treatment description including volumes used and final pressure Prior to well operation Subsequent to operation 15. Attachments Representative Daily Averaae Production or Iniection Data - OiI-Bbl Gas-Mol Water-Bbl Casing Pressure **JOB WAI CANCELLED** 16. Status of well classification as: Copies of Logs and Surveys run Daily Report of Well Operations Oil X Gas Suspended 17. I hereby c. ertify that the forpgo, ing is true and correct to the best of my knowledge. Signed _~. "'/V~ ~__ r~ ~:X~ TitleSeniorTechnicalAssistant, Form 10-404 Rev 06/15/88 / Tubing Pressure Service SUBMIT IN DUibLI~AYE Well Z-26(12-17-11-12) Ri~Workover Pull Tubin~ APPROVAL # 90-550 The proposal to perform a Rig Workover (Pull Tubing) was sent to you for Z-26. The job was cancelled. fjh 2/10/93 RECEIVED MAR 11 199:~ Alaska Oil & Gas Cons. (.;ommissiol" Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519.6612 (907) S61-5111 DATE: 01/03/92 T# 83153 BP CASED HOLE FINALS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. LEAK DET 11/07/91 #1 GAS LIFT SURVEY 11/16/91 #1 PROD-F 11/17/91 #1 TEMP 11/14/91 #1 ...-~-01 ~,'"J~, LEAK DET ~.~35 8X"''3'l INJ -~17 ~1-~8{ em~IFT suRlY ~-13 ~-Iel LE~ DET /3 ~'~ TE~ ~ ~3 ~ LE~ DET . ~~-13 J JE~LRY LOG 5 " " ~0 ~)')~ JE~nRY LOG 5 " 11/07/91 #1 11/20/91 #1 11/20/91 #1 11~23/91 91 11/21/91 #1 11/16/91 #1 11/13/91 #1 11/17/91 #1 12/10/91 #1 12/14/91 #1 12/10/91 #1 12/15/91 #1 12/12/91 #1 Information Control Well Records Adrian J. Martin 216.00-11697.00 CAMCO 150.00- 9311.00 CAMCO 10200.00-10378.00 CAMCO 8700.00-10119.00 CAMCO 2000.00- 7600.00 CAMCO 9400.00- 9940.00 CAMCO 11200.00-11430.00 CAMCO ~9350.00- 9816.00 CAMCO 2900.00-10210.00 CAMCO 150.00-12776.00 CAMCO 9050.00- 9430.00 CAMCO 10150.00-11400.00 CAMCO 10500.00-11345.00 CAMCO '400.00-10446.00 CAMCO 8900.00- 9708.00 CAMCO 200.00-10800.00 CAMCO 9400.00- 9780.00 CAMCO 11/17/91 #1 2/5" 5 " 5 " 5 5 " 5 " 5 " 5 " 2 " 5 " 5 " 5 " 2 " 5 " 2/5" 5 " 10150.00-11400.00 CAMCO 12/11/91 #1 13575.00-14590.00 CAMCO RECEIVED JAN 2 2 1992 Naska 011 & Sas Cons. Comm~lon Anchor, s BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Ben$on Bouleva~ P.O. Box lg6612 Anchorage. Alaska 99519-6612 (90'/) 561-5111 TO: DISTRIBLmON Date: 04/09/91 T#:82326 FROM: SUBJECT: Information Control Well Records LR2-1 ~.P CA~ED.....HOLE FINALS Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. - P-14 ~P-15 '-W-10 ~Y-30 '-Y-30 COMPLETION 04/04/91 #1 9650-10334 SCH 5" PERF 03/30/91~ #1 11790-12424 SCH 5" PRODUCTION 03/31/91 #1 14200-14570 SCH 5" CET 03/30191 . #1 8834-9455 SCH 5" CBT 03/30191 #1 8834-9432 SCH 5" CCL/PERF 04/05/91 #1 11500-11720 ATLAS 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES PERIOD OF CONFIDENTIAL? PERMIT ~! ~ ~ - ~_T~ DATE OF COMPLETION. SUSPENSION OR ABANDONMENT ,, 30-DAY FILING DATE ,.. ~/~/~ ~ . RELEASE DATE · COMMENTS \ B.RPC.02 (05/89) BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 July 18, 1989 Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, Alaska 99501 Attn' Mr. C. V. Chatterton Well Z-26 (12-17-11-12) PBI, I Enclosed, in duplicate, is form 10-407, our Report of Well Completion for the above named well. This information reflects the current condition and status of the well. Also enclosed are two copies each of daily drilling reports, directional and gyroscopic surveys. The open hole logs were sent under separate cover by the BP Well Records Department. Yours very truly, ~/G. Vidrine ~rilling Engineering Supervisor JGV/KTH Enclosures (4) J. Martin (MB 9-4) Well Records w/10 Well File RECEIVED JUL ! 9 I989 Alaska 0il & Gas Cons. CommissiOn .. ~chorage ~O;" STATE OF ALASKA - -~ 0 R 1 G I N J~ [ 'A~ '~' IL AND GAS coNSER~ATION ~bMMIssION WELL COMPLETIO,N_ OR. RECOMPLETION REPORT AND LOG 1. Status of W~I Claasiflcatlon of Service Well OIL [] GAS [] SUSPENDED [] ABANDONED [] SERVICE I-I , 2~ Name of Operator 7. Permit Number BP Exploration 89-52 3. Address .... 8. APl Number P. O. Box 196612, Anchorage, A~ska ,99519-661.2 . .. i- so- 029-21945 4'~ Loc~'tion' 'of well at surface 9. Unit er Lease Na~ne ' 721' SNL, 3108' WEL, SEC. 19, T11N, R12E "~f Pmdhoe .Bay Un~ At Top Producing Interval llf~J~D[ 10. Well Number 1953' SNL, 4586' WEL, SEC. 17, T11N, R12E ~.~~ ' 11.Z"26'Field(1"2'17'and Pool11-12) At Total Depth Prudhoe Bay Field/Prudhoe Bay Pool 1878' SNL, 4078' WEL, SEC. 17, T11N, R12E 5. 'Elevation in feet (indicate KB, DF, etc.) p. Lease Designation and Serial No. ' ...... KBE = 89.47' I ADL 28262 '~2.' Date Si~'udded " 13...Dale T.D. Reached ' 14. 'Date Comp., ~bap. or AbaCI. ' 15. Water Depth, it offshore' 116. No. of Completions 05/13/89 05/31/89 06/06/89 N/A feet MSL I One 17.' Total ~epth (MD+TVD) . i'8'. ~51ug B~ck"Dep{h (MD+TvD] 19r.'''DirectiOnal Survey 120. Depth whet S$SV set "r2"l.' T~iek~m ~f Permafrost 11850' TD / 9115' TVD 11808' TD / 9096' TVD ~ []. NO. E! .I 2092 f~...t MD , I194,2,,' ... 22. TyPe Electric or Other Logs Run ~I.L/BHC/..CNUG,R ,, 23. ~AsING, LINER AND CEMENTING.~ ' ' ,, , ~iNG DEp. il.i MD ' .- ,, ,- ,.. , , CASING SIZE WT. PER FT. GRADE TOP Bo'n'OM HOLE SIZE CEM,~ RECX~,,,, ...... A.....M?UNT ,PULl,E. D ~ 20" 'Conductor . Suff.a e · . !1..0, ~, 13:.3,/,8, ' 68# L-8O, . , .,su,,d.. a.c.. ~ , 2.6,22,., 17.172. ~ 3684 cu"ft ~'erm~frost .... , 9.5/8' 47# NT80..S .Surface 109...8..6' 12-1/4" , .2365 cuft CIp, s,s, G ...... 7" 26# ~,.~. L-80 10739' '~ 11850' 8-1/2" 368 cu ft Cla~ G ~4': Peri'orations' open {'o Prod~ti°n (MD+TvD 'of"T~ a~ I~lt°m and '~ :251 TUBING RBCX3RD interval, size and number) ...... .. ,, -S~E DEPTH 6Er (~D) PACKER SET (MD) Schlumberger 5" ~ 4 spf 3-1, ~ 9:2# L-80 ,... 1.0768~ 10691' w/tailpipe MD TVDss ' ' ~." AClO, PRAc'rURE, CI~IEI~sqUsEz~_ . ~EI'C.. 11630' - 11670' 8917' - 8937" DEPTH INTE. RVAL (MD)- ' AM,~UN,T & .KIND OF MATERIAL USED .. '~, ." 13-3/8"x 9-5/8, Down Saueezed Annulus w/155 BBLS :'.';i,', .... .,Oru o. ": ' ' ,, , , , . ;,. , ~,;,_ ,,...~h, ~,¢ , ,, , ii ] ,.,~ 27. PROD~.~T. 5~te First Production ....... Iaathod of Oi~erati&n (Flowing,' 'gas" lilt, et~.) ' June 5, 1989 I Flowing' Da{e'of Tes{ Hours Tested ' ~ 15RODUCTION FOR ' 01L-BB[~'" ~A~MbF" iNATER-~B~ ' CHOKESlZE I~AS-O~L RATIO ..... TEST PERIOD I1~ ,- I Fiow Tubing ' Casing Pressure r 'CALCI~'ED'r ~ OIL-BBL GAS-MCF , r ~AT~[R-BBL" OIL {3RAVITY-API (cerr) Press. 24-HOUR RATE 28'. ' ........ : coRE DATA ...... Brief description of liihology, p0ros'it~, fractures, apparent dip~, and I~e~ce of'oil, gas Or water. Sub~it ~=ere ~hipll. ' ..... ,JUL 1 9 19~.~ Ala,~ .., ~.~ Cons, Commission 'Form 10-407 Plicate Rev. 7-1-80 ~INUED ON REVERSE SIDE 29. : 30. GEOLOGIC MARKERS F~ .... ~ATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. SAG 10, 995' 8, 605' SHUBLIK A 11,038' 8, 637' ZONE 4 11,231' 8, 771' 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Title Drilling Engineering . . INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Form 10-407 @ Daily Drilling Report -- Prudhoe Bay Unit May 15, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 2642' Day: 2 48- Hour Ftg: 2377' Current Operation: Nipple up BOP's. Accepted rig 2000 hrs. 5-12-89. Spud well 0400 hrs. 5-13-89. Drilled 17-1/2" hole to 2642' 'rD. Ran and cemented 13-3/8" casing with 3961 sx Permafrost cement. Mud Type: SPUD SURVEY .MD,, WT: 10.3 VIS: 50 PV: 15 YP: 9 FL: 10. Solids: 11 Temp: 58 °F ANGLE DIRECTION TVD SECTION COORDINATES DL$~ JUL ~ 9 1989 u~i & Gas Gon$. Commission Anchorage @ BP EXPLOFIJ~rlON Daily Drilling Report -- Prudhoe Bay Unit May 16, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 3015' Day: 3 24- Hour Ftg: 373' Current Operation: Drilling 12-1/4" hole. NU BOP's and test. RIH and test casing to 3000 psi. Clean out cement and 10' of new hole. Leak off test. Drill to 2700' KOP. POH for motor. Drilled 12-1/4" hole to 3015'. Mud Type: DISPERSED WT: 9.5 SURVEY MD ANGLE VIS: 34 PV: 5 YP: 6 FL: 18 Solids: 6 Temp: 68 ~F DIRECTION TVD SECTION COORDINATES DLS // BP EXPLOR,~ON @ Daily Drilling Report-- Prudhoe Bay Unit May 17, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 0600 Depth: 4070' Day: 4 24- Hour Ftg: 1055' AFE Amount: Current Amount: Cun'ent Operation: Drilling with motor. Drilled 12-1/4" hole to 4070'. Mud Type: DISPERED SURVEY MD WT: 4.6 VIS: 48 PV: 12 YP: 17 FL: 10.4 ANGLE DIRECTION TVD SECTION Solids: 7.5 . Temp: 75~F COORDINATES DLS t~lag~a 0~ & Gas Cons. commission ~ EXI'LOR~N @ Rig: Audi 2 Well: Z-26 (12-17-11-12) Daily Drilling Report-- Prudhoe Bay Unit May 18, 1989 at 0600 hrs AFE # 120933 API: 50-029-21945 AFE Amount: Cra'rant Amount: Current Operation: · 0600 Depth: 4690' Day: 5 24- Hour Ftg: 620' Drilling. Drilled 12-1/4" hole to 4690'. Mud Type: DISPERSED WT: 9.7 SURVEY MD ANGLE VIS:39 PV:9 D,~, ECTIQN TVD YP: 8 FL: 8.4 SECTION Solids: 8.5 Temp: 74 °F COORDINATES DLS BP EXPLOR,q'K)N Rig: Audi 2 Well: Z-26 (12-17-11-12) @ © Daily Drilling Report -- Prudhoe Bay Unit May 19, 1989 at 0600 hrs AgE # 120933 AFE Amount: API: 50-029-21945 Current Amount: 0600 Depth: 6264' Day: 6 24- HourFtg: 1574' Current Operation: Drilling. Drilled 12-1/4" hole to 6264'. Mud Type: DISPERSED WT: 9.85 SURVEY .,MD, ANGLE VIS: 37 PV: 8 DIRECTION TVD YP: 4 FL: 8.8 Solids: 9 Temp: 82 °F COORDINATES DLS @ BP EXIR.OR.~EION Rig: Audi 2 Well: Z-26 (12-17-11-12) Daily Drilling Report -- Prudhoe Bay Unit May 22, 1989 at 0600 hrs AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 8326' Day: 9 72- Hour Ftg: 2062' Current Operation: Drilling. Drilled 12-1/4" hole to 8326'. Mud Type: DISPERSED WT: 10.4 VIS: 48 PV: 19 SURVEY MD ANGLE DIRE~ITQN ~ ~'1:': 10 FL: 4.6 SECTION Solids: 12.5 Temp: COORDINATES 78~F DLS BP EXPLORJ~rlON Rig: Audi 2 Well: Z-26 (12-17-11-12) O © Daily Drilling Report-- Prudhoe Bay Unit May 23, 1989 at 0600 hrs AFE # 120933 API: 50-029-21945 AFE Amouni: Current Amount: 0600 Depth: 8704' Day: 10 24- Hour Ftg: 378' Current Operation: Drilling. Drilled 12-1/4" hole to 8609'. Pull wear ring and test BOP's. Drilled to 8704'. Mud Type: DISPERSED WT: 10.5 VIS: 258 PV: 21 SURVEY ~ ANGLE .DIRECTION TVD YP: 11 FL: 4.6 SECTION Solids: 12.8 Temp: CO0 ATES 84 'F DLS @ BP EX..ORaN Daily Drilling Report -- Prudhoe Bay Unit May 24, 1989 at 0600 hfs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 9269' Day: 11 24- Hour Ftg: 565' Current Operation: Drilling. Drilled 12-1/4" hole to 9269'. Mud Type: DISPERSED WT: 10.5 VIS:49 PV: 21 SURVEY ,MD. ANGLE DIRECUTQN TVD YP: 12 FL: 4.4 SECTION Solids: 12.8 Temp: COORDINATES 98oF DLS @ © Daily Drilling Report -- Prudhoe Bay Unit May 25, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 9876' Day: 12 24- Hour Ftg: 607' Current Operation: Drilling. Drilled 12-1/4" hole to 9876'. Mud Type: DISPERSED WT: 10.4 VIS: 41 PV: 14 SURVEY MD ANGLE DIRECTION TVD YP: 10 FL: 4.8 SECTION Solids: 12.5 Temp: COORDINATES 94 'F DLS © © BP EXPLOR/iTION Daily Drilling Report .- Prudhoe Bay Unit May 26, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 10244' Day: 13 24- Hour Ftg: 368' Current Operation: Drilled 12-1/4" hole to 10084'. POH for motor. Dyna drilled to 10244'. POH. Mud Type: DISPERSED WT: 10,5 q/IS: 41 PV: 14 SURVEY MD ANGLE DIRECTION ,TVD YP: 8 FL: 4.8 SECTION Solids: 13 Temp: 92 °F COORDINATES DLS BP EXPLORKIION Daily Drilling Report -- Prudhoe Bay Unit May 30, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 10991' Day: 17 96- Hour Ftg:747' Current Operation: Drilling float collar and cement. Drilled 12-1/4" hole to 10991' TI). Ran and cemented 9-5/8" casing. Tested BOP's. RIM with 8-1/2" bit and drilled cement. Tested casing to 3000 psi. Mud Type: DISPERSED WT: 9.5 SURVEY ,MD ANGLE VIS: 33 PV: 5 YP: 2 FL: 18 Solids: Temp: °F DIRECTION ,TVD SECT/ON COORDINATES DLS © BP EXIR. OR~N Daily Drilling Report-- Prudhoe Bay Unit May 31, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API:. 50-029-21945 0600 Depth: 11622' Day: 18 24- Hour Ftg: 631' AFE Amount: Current Amount: Current Operation: Drilling. Drilled cement and float equipment. Drilled 8-1/2" hole to 11622'. Mud Type: DISPERSED WT: 9.5 SURVEY MD ANGLE VIS: 40 PV: 14 YP: 10 FL: 5 DIRECTION ~ ~,EC-~ON Solids: 9 Temp: CF COORDINATES DLS © BP EXPLORKIION Daily Drilling Report -- Prudhoe Bay Unit June 1, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 APh 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 11850' Day:. 19 24- Hour Ftg: 228' Current Operation: Circulate for 7" liner. Drilled 8-1/2" hole to 11800'. Rigged up and ran logs. Drilled 8-1/2" hole to 11850' TD. Mud Type: DISPERSED WT: 9.5 SURVEY ~ ANGLE VIS: 45 PV: 14 YP: 6 FL: 5.2 Solids: 8.8 Temp: 84 °F DIRECTION TVD SECTION ~OORDINATES DLS Daily Drilling Report--'Prudhoe Bay Unit June 2, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 API: 50-029-21945 0600 Depth: 11850' Day: 20 24- Hour Ftg: 0 AFE Amount: Current Amount: Current Operation: POH with liner running tool. Change rams to 7". Run 7" liner. Cement liner. Mud Type: DISPERSED WT: 9.5 SURVEY MD. ANGLE VIS: 37 PV: 8 DIRECFION TVD YP: 5 FL: 5.8 Solids: 9 Temp: 92 ~F .COORDINATES DLS Daily Drilling Report-- Prudhoe Bay Unit June 5, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 AFE Amount: APl: 50-029-21945 Current Amount: 0600 Depth: 11808' PBTD Day: 23 48- Hour Ftg:0 Current Operation: Running 3-1/2" tubing. Drilled cement and float equipment to 11808' PBTD. Tested liner to 3000 #. Displaced well with brine. RU Schlumberger and ran logs. Perforated from 11630' - 11650'. Mud Type: COMPL~ SURVEY MD. WT: 9.1 VIS: PV: YP: FL: ANGLE DIRECTION TVD SECTION Solids: Temp: 60 ~F COORDINATES DLS BP EXPLORmlON Daily Drilling Report-- Prudhoe Bay Unit June 6, 1989 at 0600 hrs Pig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 AFE Amount: API: 50-029-21945 Current Amount: 0600 Depth: 11808' PBTD Day: 24 24- Hour Ftg:0 Current Operation: Rig up to displace with diesel. Ran 3-1/2" tubing. ND BOP's. NU tree and tested to 3000 psi. Set plug in x-nipple. Set packer and tested. Mud Type: COMPLTN SURVEY MD WT:9.1 VIS: PV: YP: FL: ANGLE DIRECTION ~ SECTION Solids: Temp: 60 · COORDINATES DLS © Daily Drilling Report-- Prudhoe Bay Unit June 7, 1989 at 0600 hrs Rig: Audi 2 Well: Z-26 (12-17-11-12) AFE # 120933 APl: 50-029-21945 AFE Amount: Current Amount: 0600 Depth: 11808' PBTD Day: 25 24- Hour Ftg:0 Current Operation: Rig released for move to Z-23. Pump diesel in tubing and 13-3/8" X 9-5/8" annulus. Secure tree. Rig released 1200 hrs. 6-6-89. Mud Type: WT: VIS: PV: YP: FL: Solids: Temp: °F $1JRVEY,, MD ANGLE, DIRECTION ~ SECTION ,~OORDINATES DLS Memory Multi-Finger Caliper Log Results Summary Company: Log Date: Log No.: Run No.: Pipe Desc.: Pipe Use: BP Exploration (Alaska) Inc. January 10, 2000 1035 1 3.5" 9.2 lb. L-80 TDS Tubing Well: Z-26 Field: Prudhoe Bay State: Alaska APl No.: 50-029-21945-00 Top Log Intvl: Surface Bot. Log Intvl: 10,668 Ft. (MD) Inspection Type' COMMENTS ' Corrosive Damage Inspection This survey was run to assess the condition of the tubing with respect to corrosive damages. The caliper recordings indicate that the tubing ranges from good to poor condition with respect to corrosive damage. The top 4,150' of pipe shows the least severe damage, with penetrations ranging from 10% to 37%. The damage is most severe in the interval 4,150' to 8,150', with maximum penetrations ranging mostly between 20% and 60% wall. The vast majority of the damage is recorded in the form of isolated pitting, with only two areas of cross-sectional wall loss recorded that slightly exceed 10%. No significant areas of ID restriction are recorded throughout the interval logged. MAXIMUM RECORDED WALL PENETRATIONS · Pitting (76%) Jt. = RE( EIVED Pitting (59%) Jt.134 @ 4,312' MD Pitting (58%) Jt.139 (~ 4,450' MD FEB 04 ~)00 Pitting (56%) Jt. 141 @ 4,532' MD Pitting (52%) Jt. 201 ~ 6,425' MD Alaska 0ii & Gas Cons. Commission Anchorage MAXIMUM RECORDED CROSS-SECTIONAL METAL LOSS · General Corrosion (13%) Jt. 90 (~ 2,895' MD General Corrosion (12%) Jt. 91 @ 2,930' MD General Corrosion (10%) Jt. 65.1 ~ 2,084' MD No other cross-sectional wall loss in excess of 10% recorded throughout interval logged. MAXIMUM RECORDED ID RESTRICTIONS: No areas of significant ID restriction recorded throughout the interval logged. No areas of significant pipe buckling indicated. I Field Engineer' R. Richey Analyst: J. Burton Witness: Dave Romberg I ProActive Diagnostic Services, Inc. / P.O. Box 1369, Stafford, TX 77497 Phone: (281) or (888) 565-9085 Fax: (281) 565-1369 E-mail: PDS@memorylog.com Prudhoe Bay Field Office Phone: (907) 659-2307 Fax: (907) 659-2314 Welt: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA PDS Caliper Overview Body Region Analysis Survey Date: JAN 10, 2000 Tool Type: MFC24 No. 99628 Tool Size: ! 11/16" No of Fingers: 24 Analysed: J. Burton Tubing: Size Weight Grade & Thread NomOD NomtD Nora Upset 3.5 ins 92 ppf L-80 TDS 3.5 ins 2 992 ir~s 35 ins Penetration and Metal Loss (% wall) 0to 1to 10to 20 to 40 to above 1% 10% 20% 40% 85% 85% Numberofjoints analysed(totaf= 352) Pene 0 40 169 124 19 0 Loss 36 314 2 0 0 0 Damage Configuration ( body ) 300, Number of ~oints damaged (to~t = 286) 262 19 5 0 0 Damage Profile (% wall) penetration body ~:; metal toss body 0 5O GLM 6 GLM 5 GLM 4 GLM 3 GLM 2 Bottom of Survey = 333.5 100 Anatysis Overview page 2 FEB 04 2000 Well: Z-26 Field: PRUDNOE BAY Company: BP EXPLORATION ALASKA Country: USA PDS Caliper Overview Upset Region Analysis Survey Date: JAN. 10, 2000 Tool Type: MFC24 No. 99628 Tool Size: 1 11/16" No. of Fingers: 24 Analysed: J, Burton Tubing: Size Weight Grade & Thread Nora. OD Nom. ID Nom. Upset 3.5 ins 9.2 ppf L-80 TDS 3.5 ins 2.992 ins 3.5 ins Penetration and Metal Loss (% wall) penetration upset 0to 1to 10to 20 to 40 to above 1% 10% 20% 40% 85% 85% Number of ioints analysed (total = 352) Pene 291 0 30 27 4 0 Damage Configuration ( upset ) 2O isoJated general line ring hole / pass Number of joints dame§ed (totat= 61 ) 57 2 0 2 0 Damage Profile (% wall) penetration upset 0 5O GLM 6 GLM 5 GLM 4 GLM 3 GLM 2 GLM 1 Bottom of Survey = 3335 100 Analysis Overview page 3 04 PDS JOINT TABULATION Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness Body: 0.254ins Upset = 0.254ins Nominal ID: 2.992 ins Well: Field: Company: Country: Date: Z-26 PRUDHOE BAY BP EXPLORATION ALASKA USA JAN10,2000 Penetration Projection ~] 0 23 0 42 0 0 .O4 51 0 0 0 4 0 5 0 2 0 MinimumT ID i Comments inches 2.97 Corrosion 2 97 I Corrosion 2.97 I Shallow pitting 2.97 i Shallow pitt'ng 2.97 Shallow pitting 2.95 ]Shallow pitting 297 2.97 Shallow pitting 2.97 Sba owpttn§ 297 2.97 2.97 2.97 2.97 2.98 297 2.97 298 2.98 2.98 I Shallow pitting 2,97 ! 297 2.g8 2.98 2.98 298 Shallow pitting 298 Shallow pitting 2,98 299 0 299 Shallow pitting 2.98 Shallow pitting 2.98 2.97 Shallow pittin!q 2.97 2,98 Shallow Oitting 2.98 Shallow pittinCl 297 Shallow pitting 2.97 297 Shallow pittin9 298 2.98 , Shallo~in¢ 2.98 Shallow eitting 299 ] Shatlow~i)~[_nq 2.97 2.97 Shallow pitting 296 Shallow pitting 2.96 ! Shallow pitting 298 2.98 Shallow 2.96 penetration body metal loss body Damage profile (% walt) 50 100 Pipe Tabulations page 1 PDS CALleR JOINT TABULATION Pipe: 3.5 ins 9.2 ppf L-80 TDS Welt: Z-26 Wall thickness. Body: 0.254ins Upset = 0.254ins Field: PRUDHOE BAY Nominal ID: 2992 ins Company: BP EXPLORATION ALASKA Country: USA Date: JAN 10, 2000 penetration body metal loss body Joint Penetration Metal Projection Minimum I Damage profile No. Upset Body Loss Upset Body ID Comments (% wall) __ inches inches1% % inches inches inches 0 50 10 52 ! 0 .02~..__ ~c 2 ~ 0 .OL 2.971 531 0 I .041 17! 2I 0 aO___~F_ 2.95 'Shatlowpittin§ ~¢!~ . 54 I 0 ---- .04 171 1 I 0 i,~ ~ 2.99 Shallow pitting 55 0 .03 13i ¥-'~---~-- .~._. 04~ 2.98 Sha owp~n 57 0 .03 10 3 ] 0~ 0 ~ 2.99 0 .04 0 59 .05 .~ 17 6 0~'~ 2.98 S ha~ow ~ 60 .04 .06 23 _~.. ~..__ 0 2.98 Isolated pi~n~ 61 0 [ .05 2C 3 0 0 298 Shallow pi~in9 62 0 ~ 0~-'"'-~ 1--~ 6 0 0 2.99 Shallow pi~ing 63 0~ .04 1~ 6 0 0 2 99 Sha ow pi~ing ' 0 ~ 0 2.99 ~Shallow pi~ing ~4 I 0 ~..~Z ~ 0 ~ 651 0 ! 02J ~ 10 '~--~--~ 0 302 65.2 0 0 I C 0 ~ 0 0 2.98 SSSV 653 0 .05 21 7 00 2.98 Corrosion ,66 0 .08 31 9 0 .03, 2.99 Line corrosion ~a a ~ 67 , 05 .06 23 6 02 03~ 299 Corrosion I~ 0 06 2~ 9 .04 .04~ 2.99 Corrosion .04 .05 26 8 0 .04 2.99 !solated ~n~ 0 .04 17 6 0 .02 2.98 Shaiow pi~ 71 0 .06 2~ 9 0 0 2.99 isol~ed pi~in~ ] 72 0 ~ 05 1~ 8 0 0 299 Shallow~g~ '~ ¥ i ~ -'-~-~ ~' T 5 '~----' - 2.99 Sha~l~ p~in~ ] 75 0 ~ .031 1, 2 ~ 0 05_ 299 ] 76 ! 0 I 03i~ 2 ~ 0 0 295 ~ 78 ~ 0 ~ ~ 2 ~ 0 ~ 0 2.99 .j 79 ~ 0 04 1( 2 0[}~ 0 299~a~1~ L 80 ' 0 .03 1: 2 0 _ 0 2.98 ~ShatlowDi~in~ i81 0 .03 1__: 1 0 i 0, 2.99 82 0 .03 13 2 0 0 ' 2.98 Shaiow pi~in~ 83 0 .~3 t~ 2 0 0 2.98 i84 0 .05 1~ 2 0 0 2.99 Shallow pi~ing 85 0 .03 1: 1 0 0 ~ 2.96 Shallow pi~in~ 86 0 .03 1( 1 0 0 2.98 87 0 ~ 03 1! 2 0 0 296 -~ 0 ~ ~ ~OI ~ T 0 0 2.98 ~- ~' ~ .02~ ~ 2 ~ 0 0 298 90 . 0 ~ .08 3d 13 ~ 0 .04 2.98 Li~ecorrosion ' 91 0 ~ 08~ 3~ 12 ~ 0 04 299 Corrosion 92 ~ .o4 I .o6 i 251 9 '~ 5 "-~ ~E i lsolated pi~n~ 93 L..__~__.L 03L 10! __~ j. ~ 0 2~4 931~ 0 ~ 03~ t3~ 7 ~ 0 0 290 ~ PUP Shaltow corrosion 93.2~ 0 0 ---"¥~'¥---~ ¥ ~-~ ~LM6 (~tch~ 10:30) 94 ~ 0 .01 ( 1 0 ~ 0 ~ 299 95 ~ 0 .05~ 21 1 ~ 0 ~ 0 i 2.97 Isolat~ Pipe Tabulations page 2 PDS CAL R JOINT TABULATION Pipe: 3.5 ins 9.2 ppf L-80 TDS Well: Wall thickness. Body: 0.254ins Upset = 0 254ins Field: Nominal ID: 2.992 ins Company: Country: Date: Z-26 PRUDHOE BAY BP EXPLORATfON ALASKA USA JAN. 10, 2000 Penetration Minimum lD inches 298 2.99 2.98 299 3.00 2.99 2,99 2.98 2.99 2.98 2.98 2.99 2.99 2.99 2.98 2.95 Comments Shallow pitting isolated p~in9 Shaltowpittin§ Isolated pi~in~q isolated pitting Isolated pittin,9 isolated pitting Isolated pittin~q Isolated pitting Shallow pittin~q Isolated pitting Shallow pitting 297 'Shallow pitting 2.98 Isolated pitting 299 Isolated pittin~q 2.98 2.98 2.98 2.99 299 2.98 2.98 2 99 2.97 3.00 2.98 2 97 2.98 2.99 2.97 2.98 2,97 2.98 2.98 298 Shallow ~_i _ttji?.¢ Shallow pitting Sh_a!!~n,q Isolated pittin,q Shallow corrosion Shallow pitting_ Isolated p~ing Corrosion Isolated deep pittin,q ieneral deep corrosion Line corrosion isolated deep pitti~ Corrosion Isolated ~ittin~ 299 Corrosion 2.98 Corrosion 2.98 Corrosion penetration body metal loss body Damage profile (% wa I) 50 100 2.99 Corrosion 2.98 298 2~97 2.98 2,97 Pipe Tabulations page 3 PDS CAL R JOINT TABULATION Pipe: 3.5 ins 92 ppf L-80 TDS Well: Wall thickness. Body: 0.254ins Upset = 0.254ins Field: Nominal ID: 2.992 ins Company: Country: Date: Z-26 PRUDHOE BAY BP EXPLORATION ALASKA USA JAN. 10, 2000 penetration body metal loss body Penetration Upset i inches Minimum ID Comments inches 2.97 l Corrosion 2.97 Shallow pittin~ 296 I~ 2.97 Isolated pitting 2.98 Isolated pitting 2.98 Isolated pitting!L_. 2.98 Corrosion 2.99 Isolated pitting_ 2.97 Isolated pitting 2.97 l lsolated pitting 2.96 Isolated pitting 2.98 Isolated pitting 2.99 isolated pitting 2.97 Isolated pittin9 2.98 Isolated pitting 2.97 isolated pitting 297 Isol..a_.t~d pitting 2.97 Isolated pitting 2.97 Isolated pitting 2,98 Isolated pitting__ 2.98 Isolated pittin,q 2.97 isolated pitting 2.96 Isolated pitting 2.98 I Isolated pitting 2.989-98 Isolated_~itting so ated p~ n,q 2.98 Isolated pi~ie,q 2.98 Isolated pittin~ 2.98 I Iso ated pittinFl 2.98 2.95 2.98 Corrosion 295 2.96 2.98 Isolated pittinp 2,96 2.92 2.97 2.97 2.97 2.86 PUP Shallow pitting Deposits in upset. 2.97 2.97 PUP Shallow pitting 2,96 Isolated pitting 2.97 Isolated pitting 2.96 Isolated pitting 2.96 Isolated pitting 2.97 Isolated bittin9 296 I lsolated 2.97 Pipe Tabulations page 4 Damage profile (% walt) 50 100 FEB 04 2000 PDS CAL R JOINT TABULATION E Pipe: 3.5 ins 9.2 ppf L-80 TDS Well Z-26 Walt thickness. Body: 0.254ins Upset = 0 254ins Field: PRUDBOE BAY Nominal ID: 2.992 ins Company: BP EXPLORATION ALASKA Country: USA Date: JAN. 10, 2000 penetration body metal loss body Joint Penetration Metal Projection I Minimum Dama]e profile No. Upset Body Loss Upset Body ID Comments (% wail) inches incheEL% % inches inches inches 0 50 10 196 .05 .09 ~33 3 i 0.02 0 2.95 llsolated pitting 197 .04 I .08/32 2 I 0 2.94 Line corrosion __ -- 198 0 .06 -24 2I----O 0 2.96 solated pitt n9 199 0 .04 I7 21 0 0 2.97' Shatlow pitting 200 ~- .07 26 2I 0 - 0 2.96 Isolated pitting__ 201 .06 .13 52 3 0-~1 0 2.98 Isolated pitting 202 0 .05 20 2 0 0 2.96 Isolated pitting 203 0 .07 26 2 0 .021 2.96 Isolated Cttinq 204 0 04 1--~ 2 0 0 2.93 Shallow pitt'Ln.:.q.._. 205 ' -- 0 .05 18 2 0 0 2.92 Sha ow pittin§ 206 0 .08 30 2, O__ 0 2.95 ,so,ated pittinq 207 0 05 19 21 0_._! 0 2.97 Shallow pitting 208 0 .04 18 2 0 0 2.96 Shallow pittin(~ 209 0 .04 15 2 0 0 296 Shallow pittin.q 210 0 .04 15 I 0 0 2.96 Shallow pbting 211 0 04 15 2 0 0 2.95 Shallow pitting 212 0 .04 1(~ 2 0 .02 2.97 _Shallow~itting 213 0 .0~4 i~ I 0 0 2.96 Shallow pittin,q 214 0 .05 18 I l- 0 0 297 Sha ow pttin.q 215 I 0 .04 17 2 I 0 0 294 Shaltow~.in,q 216~ 0 .05 26 2 [ 0 0 2.95 Shallcccpitt~ '~'~--- I 0 I .03 1'; 1 I 0 0 2.96 ;218 I 0I 04 17 2 I 0 0 2.97 Shallow pittin~ 220 0 .03 10 1 0 0 2.95 221 0 04 14 I 0 0 2.95 Shallow pitting 222 0 .05 21 2 0 0 2 96 lsolated__9._i~._n.~ 223 0 .06 22 2 0 .03 2.97 Isolated pittin¢i 224 0 .08 3£ 2 0 0 2.96 l Isolated pittin9 225 9 .06 2E 2 0 O 297 ~lsolated pittin~ 226 .05 .07 27 2 0 0 2.97 tsotated j_Dittin_9_ 227 0 .06 24 2 I 0 ,04 2.97 Isolated pittin~ 228 0 .12 47 2I 0 0 2.96 Isolated ptt[in,q 229 0 .05 2E 2 0 03 294 Shallow pittin.q 230 0 .05 21 2 0 .03 2.96 Isolated pittin_~q i_!31 _ .05 .05 2£ 2 0 0 2.93 Sha Iow pittin¢~ 32 0 .06 2.~ 2 0 0 2.94 Isolated pittin,q 33 0 .07 2___~ 2 0 .02 2.97 isolated pitting ]234 0 .05 2C 2 0 0 2.96 Isolated pittinp r~-- 0 I .05 ! 2! 2 0 0 2.97 I lsolated pittinct 2"~6 0I .06 I 2_; ~3 0 0 2.97 Isolated pitting 237 0 I 11I 4: 3 0 0 2.97 Isolated pittin~ 238 ~ 0 ] .11 4z 2 0 .04 2.94 Line corrosion 239 0 06 22 2 0 0 I 2.97 i lsolated pitting 240 ~04 .08 3£ 2 0 0 / 2~5 I Isolated pittinq 241 0 .05 2 2 0 0 f 2.9~___~_1 solated ~i_SLnq 242 0 .05 I.( 2 0 0 I 2.97 IShallow pittin~ 243 .05 .09 3( 2 0 0 I 297 I~ ~' 244 I 0 .05 1E 2 _ 0__ .031 2.96 Shallow pitting 2~5__I 0 03 I 1: 1 0 0 I 2.98 Shat~ow pitting 1246 I .07 .07I 2E 2 0 0 1____297 Isolated. i~c~ Pipe Tabulations page 5 PDS JOINT TABULATION S~T Pipe: 3.5 ins 92 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = O 254ins Nominal iD: 2992 ins Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Date: JAN 10, 2000 Penetration Minimum tD Comments inches 298 Shallow pitting 2.88 PUP 2.98 2.98 2.97 2.97 2.96 2.97 2.97 penetration body metal toss body Damage profile (% wall) 5O 100 2.97 2.95 2.96 2.97 2.97 2.95 2.96 2.98 2.97 2.94 2.92 2.95 292 2.96 2.96 2.96 295 2.96 2.97 2.96 2.95 2.92 2.96 294 2.96 296 2.96 2.96 2.95 2.92 296 Z94 2.95 295 Pipe Tabulations page 6 F~B 04 ~08~ PDS JOINT TABULATION S Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = 0 254ins Nominal ID: 2992 ins Well: Field: Company: Country: Date: Z-26 PRUDHOE BAY BP EXPLORATION ALASKA USA JAN. 10, 2000 Joint i Penetration 01 0 Minimum 1D inches 2 96 2.96 Shallow pitting. 2.95 2.96 2.95 2.93 2.95 295 2.95 297 Shallow pitting 2 97 2.96 I Shallow pittin,q 296 Shallow pitting 294 Isolated pittin,q. 2.95 Shallow p~ 297 2.93 Isolated pittin,q 296 2.92 PUP 2.92 GLM 2 (Latch ¢~- 2:00} 2.92 PUP 295 Shallow 2.93 Shallow 2 96 Shallow pittin,q 2.94 Shallow pittin¢ 2.95 Shaliow pittin,q 294 ~tt~ 2.95 Shallo~q 2.96 Shallow pittinq 2.92 Shallow pittinp 2 95 Sh~ittin,q 2.96. _Shallow~_n~L 2.97 ~-~oiated pittin.q 2.98 ~ _Sh_allow ~ttin~ 2.96 I Shallow pittinp 2.96 I Isolated~. 2.96 IShallow pit~i_nj;L 2.97 [-S~I~ pittin~L 2.95 I tsotated pittin,q 2.93 !Isolated pittincl 2.95 i Shallow pittieg 2.96 I lsol~ed pittin,q 2.96 Isolated pJttin~ 2.90 PUP 295 GLM 1 2.95 PUP 293 Isolated pittin~ 293 XN 2,93 PUP Shallow~i~nq 2.96 PUP 294 PACKER Pipe Tabulations page7 ~ ~ {'~ ~ i ~/~ D ;%,~y; penetration body ~e:~ metal loss body Damage profile %wa ) 50 100 PDS CAL R JOINT TABULATION Pipe: 3.5 ins 92 ppf L-80 TDS Well: Wall thickness. Body: 0 254ins Upset = 0 254ins Field: Nominal ID: 2.992 ins Company: Country: Date: Z-26 PRUDHOE BAY BP EXPLORATION ALASKA USA JAN 10,2000 Joint Penetration Metal No Upset Body I Loss inches I inches % 1333 I 0 I .031 111 2 [333 11 0 ! 0 I ~333.21 0 I .06 241 2 1333 5f __0_ ....... I .00! Pro~ection Upset Body in?es in?es 0 0 Minimum ID Comments inches 2.94 2,95 XN 2.95 PUP Isolated 296 PUP 2.96 XN 2.96 PUP Damage Classifications Penetration 1 projection class, in order of damage severity Hole - penetration exceeds 85% of nominal walt thickness Ring - damage area exceeds 60% of circumference, but depth range does not exceed 2 * pipe tD Line - damage depth range exceeds 12 * pipe ID, but extends less than 20% of circumference General - damage depth range exceeds 2 * pipe tD and/or extends more than 20% of circumference isolated - damage depth range does not exceed 12 * pipe ID or extend more than 20% of circumference Damage reporting threshold = 30 thou inches deviation in body, 40 thou in upset Modal tine length = 0.198 feet. penetration body meta loss body Damage profile (% wa b 5O 100 R . LE VED FES 04 2000 Pipe Tabulations page 8 Well: Z~26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Tubing: 3,5 ins 9~2 p_pf L~80 TDS PDS Caliper Sections Survey Date: JAN, 10, 2000 Tool Type: MFC24 No, 99628 Tool Size: 1 11/16" No, of Fingers: 24 Anal~/sed: J. Burton Cross section for Joint 131 Tool speed = 46 Nominal ID = 2,992 Nominal OD = 3.500 Remaining walt area = 97 % Tool deviation = 39 ° FEB 04 ~ at depth 4204,24 ft Finger 18 Penetration = 0193 ins Isolated Pitting 0t93 In, = 76% NIGH SIDE = UP Cross-Sections page 1 Well: Z-26 Field: PRUDHOE BAY Company; BP EXPLORATION ALASKA Country: USA Tubin 3.5 ins 92 ppf. L-80 TDS PDS Caliper Sections Survey Date: JAN, t0, 2000 Tool Type: MFC24 No. 99628 Tool Size: I 11116" No, of Fingers: 24 Analysed: J, Burton Cross section for Joint 134 Tool speed = 45 Nominal ID = 2,992 Nominal OD = 3,500 Remaining wall area = 97 % Tool deviation = 4I D at depth 4311,75 ft 1 Finger 19 Penetration = 015 ins Isolated Pitting 0150 h'l = 59% HIGH SIDE = UP Cross-,Sections page 2 Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Tubing: 3,5 ins 9,2 pp.f L-80 TDS PDS Caliper Sections Survey Date: JAN, 10, 2000 Tool Type: MFC24 No. 99628 Tool Size: 1 11/16" No of Fingers: 24 Anal)/sed: J. Burton Cross section for Joint 139 at depth 4443.33 ft Tool speed = 44 Nominal ID = 2,992 Nominal OD = 3500 Remaining wall area = 96 % Tool deviation = 42 ° Finger 18 Penetration = 0.147 ins Corrosion 0.147 In. = 58% HIGH SIDE = UP Cross-Sections page 3 PDS C IPER JOINT TALLY SHE -n Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = 0.254ins Nominal ID: 2.992 ins Joint Depth Length Measured Type No. ID feet feet inches 1 26.30 32.60 nominal 2 58.90 31.65 3.019 3 90.55 31.64 3..025 4 122.19 31.16 3.027 5 153,35 31.81 3.024 6 185.16 31.80 3.022 7 216.96 31.80 3.023 8 248.76 31.48 3.021 9 280.24 31.65 3.021 10 311..89 31.64 3.015 11 343.53 31.49 3.019 12 375.02 31.80 3.017 13 406.82 31.48 3.021 14 438.30 31.66 3..022 15 469.96 31.62 3.018 16 501.58 31.51 3.016 17 533.09 31.64 3.017 18 564.73 31.64 3.018 19 596.37 31.49 3.022 20 627.86 31 _64 3.021 21 659.50 31.65 3.019 22 691.15 31.42 3.016 23 722.57 31.55 3.020 24 754.12 31.80 3.019 25 785.92 3! .34 3.018 26 817.26 31.64 3.016 27 848.90 31.49 3.017 28 880.39 31.65 3.019 29 912.04 31.80 3.017 30 943.84 31.49 3.020 i. 31 975.33 31.64 32 1006.97 32.16 3.019 33 1039.13 31.12 3.016 34 1070.25 31.49 3.015 35 1101.74 31.50 3.020 36 1133.24 31.47 3.017 37 1164.71 31.82 3.017 38 1196.53 31.33 3.021 39 1227.86 32.28 3.016 40 1260.14 31.01 3.016 41 1291.15 31.64 3.024 42 1322.79 31.33 3.017 43 1354.12 31.02 3.019 44 1385.14 31.33. 3.023 45 1416.47 31.80 3.021 46 1448.27 31.64 3.016 47 1479.91 31.98 3.012 48 1511.89 31.16 3.014 49 1543.05 31.49 3.023 50 1574.54 31.63 3.0'1:8 .. 51 1606.17 31.66 3.018 Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Date: JAN. 10, 2000 jOint Depth Length Measured Type No. ID feet feet inches 52 1637.83 31.51 3.019 53 1669.34 31.52 3.010 54 1700.86 31.47 3.024 55 1732.33 31.13 3.016 56 1763.46 31.48 3.019 57 1794.94 31.05 3.020 58 1825.99 31.56 3.014 59 1857.55 30.54 3.019 60 1888.09 31.29 3.017 61 1919.38 31.51 3.010 62 1950.89 31.48 3.013 63 1982.37 31.65 3.021 64 2014.02 32.32 3.033 65 2046.34 31,.89 3.018 65.1 2078.23 8.47 3.013 65.2 2086.70 14.93 nominal Sssv 65.3 2,101.63 9.85 3.014 66 2111.48 31.68 3.015 67 2143.16 31.55 3.027 68 2174.71 31.54 3.017 69 2206.25 32.37 3.015 70 2238.62 30.83 3.022 71 2269.45 31.54 3.012 72 2300.99 31.58 3.020 73 2332.57 31.63 3.014 74 2364.20 31.58 3.018 75 2395.78 31.59 3.016 76 2427.37 32.46 3.017 77 2459.83 30;69 3.011 78. 2490.52 31.64 3.018 79 2522.16 31.81 3.015 80 2553.97 31.33 3.014 81 2585.30 31.60 3.014 82 2616.90 31.55 3.014 83 2648.45 31.60 3.014 84 2680:05 31.42 3.018 85 2711.47 31.50 3.012 86 2742.97 31.64 3.015 87 2774.61 31.27 3.010 88 2805.88 31.77 3.013 89 2837.65 31.48 ,~ 3.012 90 2869.13 32.07 3.015 91 2901.20 31.21 3.018 99~ 2932.41 30.84 3.027 2963.25 30.86 3.029 93~1 2994.11 10.76 3.010 Pup 93.2~ 3004.87 10.76 nominal GIm6 93.3 3015.63 7.74 3.018 Pup 94 3023.37 31.48 3.017 95 3054.85 31.36 3.009 96 3086.21 30.49 3.015 I ., , ~, O Cl lVt Joint Tally page 1 ) FEB O4 t000 PDS C IPER JOINT TALLY SHE Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = 0.254ins Nominal ID: 2.992 ins Joint Depth Length Measured Type No. ID feet feet inches 97 3116.70 32.65 3.015 98 3149.35 31.48 3.017 99 3180.83 31.54 3.014 100 3212.37 31.10 3.013 101 3243.47 31.33 3.018 102 3274.80 31.49 3.016 103 3306.29 31.90 3.013 104 3338.19 31.22 3.008 105 3369.41 31.50 3.017 106 3400.91 30.38 3.011 107 3431.29. i 31.33 3.014 108 3462.62I 31.49 3.016 109 3494.11 31.80 3.012 110 3525.91 30.86 3.024 111 3556.77 30.85 3.013 112 3587.62 32.12 2.997 113 3619.74 31.76 3.012 114 3651.50 31.32 3.008 1 t5 3682.82 31.58 3.021 116 3714.40 31.05 3.007 117 3745.45 32.04 3.017 118 3777.49 31.37 3.012 119 3808.86 31.48 3.012 120 3840.34 31.65 3.013 121 3871.99 31.63 3.014 122 3903.62 31.50 3.010 123 3935.12 31.17 3.016 ~,124 3966.29 31.81 3.016 125 3998.10 31.01 3.021 126 4029.11 31.49 3.010 127 4060.60 31.31 3.006 128 40,91.91 31.67 3.015 129 4123.58 31.01 3.012 130 4154.59 32.06 3.017 131 4186.65 30.60 3. 008 132 4217.25 32.28 3.005 133 4249.53 30.69 3~004 t34 4280.22 31.89 3.000 135 4312.11 31.25 3.010 136 4343.36 31.56 3.002 137 4374.92 31.73 3.009 138 4406.65 31.00 3.012 139 4437.65 31.41 3.009 140 4469.06 31.53 3~008 141 4500.59 31.48 3.002 142 4532.07 31.83 3.010 .143 4563.90 30.72 3.006 144 4594.62 31.43 3.006 145 4626.05 31.34 3.001 146 4657.39 31.48 3.012 147 4688.87 31.41 3.005. Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Date: JAN. 10, 2000 Joint: Depth Length Measured Type No. ID feet feet inches 148 4720.28 31.32 3.011 149 475t.60 31.35 3.005 150 4782.95 31.05 3.005 151 4814.00 31.70 3.003 152 4845.70 31.26 3.003 153 4876.96 31.57 3.005 154 4908.53 31.41 3.009 155 4939.94 31.48 3.009 156 4971.42 31.83 3.006 157 5003.25 31.32 3.004 158 5034.57 31.68 3.002 159 5066.25 31.27 3.005 160 5097.52 31.58 3.007 161 5129.10 31.45 3.009 162 5160.55 31.47 3.009 163 5192.02 31.66 3.001 164 5223.68 31.45 3.003 165 5255.13 31.53 3.005 166 5286.66 32.02 3.003 167 5318.68 31.03 3.002 168 5349.71 30.83 3.000 169 ,5380.54 31.18 2.999 170 5411.72 31.30 2.997 17'1 5443.02 31.33 3.002 172 5474.35 31.16 3.007 173 5505.51 30.74 3.002 174 5536.25 31.17 2.997 175 5567.42 31.46 3.009 176 5598.88 31.46 3.000 177 5630.34 31.18 3.002 178 5661.52 31.13 3.009 179 5692.65 31.14 2.997 180 5723.79 30.90 3.010 181 5754.69 31.15 3.005 182 5785.84 30.82 3.001 183 5816.66 30.27 3.008 184 5846.93 31.15 2.997 185 5878.08 ,31.06 2.998 186 5909.14 30.45, 2.998 187 5939.59 30.75 2.997 188 5970.34 31.02 3.003 188.1 6001.36 9.98 3.000 Pup 188.2 6011.34 10.92 nominal GIm5 188,3 6022.26 7.39. 2.999 pup 189 6029.65 31.21 3.001 190 6060.86 31.16 3.004 191 6092.02 31.03 2.995 192 6123.05 31.53 3.000 193 6154.58 31.47 2.999 194 6186.05 31.13 2.995 195 6217.18 30.83 2.997 Joint Tally page 2 R[CEIVED FEB 04 Alaska Oil a '.~s Cons. t;omrnissior~ Anchorage PDS C IPER JOINT TALLY SHE Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = 0.254ins Nominal ID: 2.992 ins Joint Depth Length Measured TYpe No. ID feet feet inches 196 6248.01 30.78 2.999 197 6278.79 31.33 2.995 198 6310.12 31.01 2.996 199 6341.13 31.55 2.996 200 6372.68 31.42 3.001 201 6404.10 31.64 3.004 202 6435.74 31.80 3.002 203 6467.54 31.49 3..001 204 6499.03 30.99 2.994 205 6530.02 32.16 nominal 206 6562.18 31.63 2.999 207 6593.81 31.49 3.000 208 6625.30 31.48 2.997 209 6656.78 31.65 2.998 210 6688.43 31.64 3.004 211 6720.07 31.09 2.991 212 6751.16 32.04 2.999 213 6783.20 31.49 2.997 214 6814.69 3t .64 2.998 215 6846.33 31.65 2.990 216 6877.98 31.54 2.998 217 6909.52 31.46 2.995 218 6940.98 31.49 2.997 219 6972.47 31.64 3.004 220 7004.11 31.67 2.998 221 7035.78 31.53 2.995 222 7067.31 30.16 nominal 1223 7097.47 31.33 3.000 224 7128.80 31.42 nominal 225 7160.22 31.55 3.007 226 7191.77 31.49 3.005 227 7223.26 31.47 3.000 228 7254.73 3!.18 3.000 229 7285.91 30.64 2.991 230 7316.55 32.34 2.995 231 7348.89 31.64 2.990 232 7380.53 30.21 2.9,88 233 7410.74 32.56 3.000 234 7443.30 31.37 nominal 235 7474.67 31.53 2.998 236 7506.20 31.33 2.999 237 7537.53 31.32 2.997 238 7568.85 31.97 2.999 239 7600.82 31.20 3.001 240 7632.02 31.35 2.991 241 7663.37 31.50 2.991 242 .7694.87 31.34 2.998 243 7726.21 31.64 3.002 244 7757.85 31.39 2.994 245 7789.24 31.57 3.003 246 7820.81 31.49 3.002 Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Date: JAN. 10, 2000 .... Joint Depth Length Measured Type No. ID feet feet inches ;247 7852.30 31.48 3.005 247.1 7883.78 9.82 3.002 Pup 247.2 7893.00 10.18 nominal Giro4 247.3 7903.78 8.17 3.008 P u p. ~48 7911.95 31.17 2.998 249 7943.12 31.31 3.001 250 7974.43 31.76 2.999 251 8006.19 31.70 2.999 252 8037.89 31.51 3.005 253 8069.40 31.15 2.995 254 8100.55 31.33 3.001 ,,. 255 8131.88 31.65 3.004 256 8163.53 31.33 2.998 257 8194.86 31.61 2.990 258 8226.47 31.51 2.994 259 8257.98 31.43 3.000 260 8289.41 31.00 2.998 261 8320.41 31.13 3.002 262 8351.54 31.37 2.999 263 8382.91 31.71 2.998 264 8414.62 .31.00 2.996 26~ 8445.62 31.45 2.996 8477.07 31.49 2.997 267 8508.56 31.47 2.998 268 8540.03 31.70 nominal 269 8571.73 31.16 2.987 270 8602.89 31.72 2.991 271 8634.61 30.42 nominal ~272 8665.03 31.48 2.997 273 8696.51 30.88 nominal 274 8727.39 31.21 nominal 275 8758.60 31.09 2.998 276 8789.69 31.47 2.999 277 8821.16 30.89 2.996 278 8852.05 31.44 2.995 279 8883.49 31.57 3.000 280 8915.06 31.03 2.991 281 8946.09 31.47 2.995 282 8977.56 31.26 2.999 283 9008.82 31.44 3.003 ,,2, 84 9040.26 31.56 2.999 285 9071.82 31.36 2,995 286 9103.18 31.29 2.985 287 9:134.47 31.39 2.997 287.1 9165.86 10.24 3.000 Pup ,287.2 i 9176.10 8.02 nominal Giro3 287.3i 9184.12 10.46 2.996 Pup '288I 9194.58 31.01 3.001 ,,.289 9225.59 31.42 2.994 290 9257.01 31.61 2.998 291 9288.62 31.41 nominal Joint Tally page 3 RECEIVED FEB Alaska Oil a Sas Cons. Commiuion Anchorage PDS 'PER JOINT TALLY SHEE Pipe: 3.5 ins 9.2 ppf L-80 TDS Wall thickness. Body: 0.254ins Upset = 0.254ins Nominal ID: 2.992 ins Well: Z-26 Field: PRUDHOE BAY Company: BP EXPLORATION ALASKA Country: USA Date: JAN. 10, 2000 Joint Depth Length Measured Type No. ID feet feet inches 292 9320.03 31.98 2.999 293 9352.01 31.16 2.996 ' 294 9383.17 30.45 2.994 295 9413.62 31.39 2.995 296 9445.01 31.32 2.996 297 9476.33 3t .32 2.991 298 9507.65 31.38 nominal ~ 299 9539.03 31.14 2.996 300 9570.17 31.09 3.000 301 9601.26 31.62 2.997 302 9632.88 31.24 2.998 303 9664.12 31.43 2.998 304 9695.55 31.23 2.996 305 9726.78 31.87 2.994 306 9758.65 31.06 2.994 307 9789.71 31.48 2.991 308 9821.19 31.17 2.991 309 9852.36 31.33 nominal 309.1 9883.69 9.80 2.994 Pup 309.2 9893.49 10.45 nominal Giro2 309.3 9903.94 8.07 2.991 Pup 310 9912.01 30.84 2.988 311 9942.85 31.34 2.982 312 9974.19 31.00 2.991 313 10005.19 31.17 2.989 ,, 314 10036.36 31.33 2.996 '315 10067.69 31.33 2.980 316 10099.02 31.45 2.988 317 10130.47 31.35 nominal 318 10161.82 31.86 2.991 319 10193.,68 30.59 2.995 320 10224.27 30.91 nominal 321 10255.18 31.55 2.996 32,2 10286.73 31.31 3.012 323 10318.04 31.64 2.996 324 10349.68 31.18 2.~ 325 10380.86 31.68 2.995 326 10412.54 3!.14 2.999 327 10443.68 31.17 2.990 328 10474.85 31.63 2.994 329 10506.48 31.39 nominal 330 10537.87 30.93 2.995 331 10568.80 31.14 2.990 331.1 10599.94 9.97 3.002 Pup 331.2 10609.91 10.12 nominal Glml 331.3 10620.03 8.03 3.002 Pup 332 10628.06 30.39 2.978 332.1 10658.45 1.30 nominal X-nip 332.2 10659.75 10.13 2.988 Pup 332.3 10669.88 8.87 .2.995 Pup 332.4 10678.75 27.02 nomir'al Packer Joint Depth Length Measured Type No. ID feet feet inches 333 1070-5.77 30.22 2.997 333.1 10735.99 1.42 nominal X-nip 333.2 10737.41 9.66 2.980 Pup 333.3 10747.07 9.95 2.994 Pup 333.4 10757.02 1.12 nominal X-nip 333.5 10758.14 unknown 2.983 Pup , , ~ r.. ~, L I '¥ ....... . ur,,,,], vw i), WlIiliiI~II Joint Tally page 4 I TELE£O] To,.co O..°,d 6116 Nielson Way Anchorage, AK 99502 (907) 562-2646 of Alaska Inc. May 31, 1989 JOB #700 BP EXPLORATION (ALASKA) INC. WELL: Z-26 EILEEN WEST END RIG: AUD #2 Attached please find a copy of the computer calculated MWD directional surveys for the above mentioned well. Teleco appreciates this opportunity to provide service to BP Exploration (Alaska) Inc. Teleco is committed to providing the highest quality MWD Service and we would welcome any comments or questions concerning these surveys or any of our other services. Sincerely, Field Operations Supervisor JGM/el Enclosures a ~I~MAI' COMPANY TELECO OILFIELD SERVICES SURVEY CALCULATIONS Date 5/16/89 Company: BP EXPLORATION Well: Z-26 Location: PRUDHOE BAY E.W.E. Rig: AUDI #2 TELECO Job # 700TAK Grid Correction: 0.0° Magnetic Declination: 30.8° Total grid correction: 30.8° Proposed Direction: 46.3° MINIMUM CURVATURE CALCULATION Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ****************************************************************************************************** TIE IN.TO GLDD SINGLE SHOT 2612 0 0.8 210.0 2611,94 -9.14 3.89S 8.93W 9.74 S 66.46W 0.00 TELECO MWD SURVEYS 2806 194 1.4 53.7 2805.92 -8.09 3.66S 7.70W 8.52 S 64.57W 1.11 2889 83 3.4 48.0 2888.85 -4'63 1.41S 5.05W 5.24 S 74.37W 2.42 2991 102 6.1 42.1 2990.49 3.80 4.63N 0.83E 4.71 N 10.18E 2.69 3085 94 8.9 44.5 3083.68 16.05 13.53N 9.28E 16.40 N 34.45E 3.00 PAGE 1 .Company: BP EXPLORATION, Well: Z-26, Location: PRUDHOE BAY E.W.E., Riq: AUDI #2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ****************************************************************************************************** 3179 94 11.3 37.5 3176.22 32.43 26.02N 19.98E 32.81 N 37.52E 2.86 3252 73 13.3 38.5 3247.54 47.81 38.27N 29.57E 48.36 N 37.69E 2.76 3440 188 16.7 42.8 3429.11 96.22 75.02N 61.39E 96.94 N 39.29E 1.90 3624 184 21.4 44.5 3602.98 156.19 118.39N 102.91E 156.86 N 41.00E 2.57 3809 185 26.8 44.2 37~1.80 '231.66 172.40N 155.68E 232.29 N 42.08E 2.92 3995 186 33.0 44.2 3932.95 324.28 238.84N 220.30E 324.93 N 42.69E 3.34 4119 124 36.5 41.0 4034.82 394.79 290.90N 268.07E 395.59 N 42.66E 3.18 4295 176 41.3 38.9 4171.76 504.57 375.66N 338.94E 505.96 N 42.06E 2.83 4422 127 43.2 38.5 4265.76 589.21 442.30N 392.32E 591.22 N 41.57E 1.51 4611 189 45.5 39.9 4400.91 720.30 544.65N 475.84E 723.23 N 41.14E 1.32 4798 187 46.6 40.3 4530.69 854.14 647.63N 562.56E 857.84 N 40.98E 0.61 4983 185 47.7 39.6 4656.50 988.94 751.60N 649.64E 993.45 N 40.84E 0.66 5165 182 48.8 39.6 4777.69 1123.79 856.22N 736.20E 1129.20 N 40.69E 0.60 5352 187 49.7 39.9 4899.76 1264.53 965.12N 826.80E 1270.85 N 40.59E 0.50 PAGE 2 Company: BP EXPLORATION, Well: Z-26, Location: PRUDHOE BAY E.W.E., Riq: AUDI #2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' 5506 154 50.2 38.5 4998.85 1381.51 1056.48N 901.30E 1388.70 N 40.47E 0.77 5600 94 50.2 38..9 5059.02 1453.10 1112.84N 946.45E 1460.89 N 40.38E 0.33 5785 185 49.8 38.2 5177.92 1593.53 1223.68N 1034.78E 1602.55 N 40.22E 0.36 6066 281 49.0 36.8 5360.77 1804.38 1392.94N 1164.68E 6349 283 48.1 36.8 5548.09 2013.60 1562.79N 1291.76E 6631 282 46.8 35.0 5738.79 2217.93 1731.01N 1413.62E 1815.70 N 39.90E 0.47 2027.55 N 39.58E 0.32 2234.89 N 39.24E 0.66 5806 175 45.9 35.4 5859.58 2342.19 1834.48N 1486.62E 2361.22 N 39.02E 0.54 5914 108 45.2 34.7 5935.21 2417.80 1897.59N 1530.90E 2438.13 N 38.90E 0.80 7101 187 44.6 35.7 6067.67 2547.32 2005.45N 1606.98E 2569.87 N 38.71E 0.50 7240 139 44.0 34.0 6167.15 2642.47 2085.12N 1662.46E 2666.74 N 38.57E 0.95 7484 244 42.7 36.1 6344.57 2806.74 2222.25N 1758.61E 2833.93 N 38.36E 0.80 7671 187 41.7 37.8 6483.11 2930.67 2322.64N 1834.10E 2959.49 N 38.30E 0.81 7794 123 42.7 37.1 6574.22 3012.30 2388.23N 1884.34E 3042.10 N 38.27E 0.90 PAGE 3 Company: BP EXPLORATION, Well: Z-26, Location: PRUDHOE BAY E.W.E., Riq: AUDI #2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ****************************************************************************************************** 7889 ~95 45.5 37.8 6642.44 3077.62 2440.70N 1924.54E 3108.20 N 38.26E 2.99 8018 129 50.2 38.2 6728.98 3172.23 2516.04N 1983.41E 3203.81 N 38.25E 3.65 8167 149 54.0 39.2 6820.49 3288.76 2607.77N 2056 94E 3321.36 N 38.27E 2.61 8355 188 54.1 38.5 6930.85 3439.67 2726.30N 2152.41E 3473.55 N 38.29E 0.31 8544 189 54.8 42.1 7040.76 3592.56 2843.53N 2251.85E 362'7.19 N 38.38E 1.59 8739 195 53.9 42.4 7154.41 3750.62 2960.82N 2358.39E 3785.30 N 38.54E 0.48 8927 188 52.4 42.4 7267.15 3900.71 3071.90N 2459.84E 3935.40 N 38.69E 0.80 9209 282 52.2 43.8 7439.61 4123.48 3234.80N 2612.30E 4157.89 N 38.92E 0.40 9398 189 51.8 42.8 7555.97 4272.20 3343.19N 2714.44E 4306.40 N 39.07E 0.47 9585 187 51.3 43.5 7672.25 4418.43 3450.03N 2814.60E 4452.49 N 39.21E 0.40 9753 168 52.0 44.5 7776.48 4550.08 3544.81N 2906.13E 4583.80 N 39.35E 0.63 9866 113 52.6 44.5 7845.57 4639.45 3608.58N 2968.80E 4672.86 N 39.44E 0.52 9960 94 52.1 46.3 7903.00 4713.86 3660.83N 3021.79E 4746.88 N 39.54E 1.60 PAGE 4 Company: BP EXPLORATION, Well: Z-26, Location: PRUDHOE BAY E.W.E., Riq: AUDI ~2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100° ****************************************************************************************************** 0242 282 46.8 56.8 8086.56 4926.68 3794.29N 3188.63E 4956.20 N 40.04E 3.39 0336 94 47.5 57.2 8150.48 4994.40 3831.82N 3246.42E 5022.16 N 40.27E 0.81 0640 304 44.8 72.3 8361.70 5201.36 3925.39N 3443.28E 5221.58 N 41.26E 3.68 0808 168 43.2 77.6 8482.59 5303.74 3955.74N 3555.88E 5319.04 N 41.95E 2.39 0931 123 42.5 80.7 8572.77 5374.00 3971.50N 3638.01E 538'5.90 N 42.49E 1.81 PAGE 5 TEL~uO Oilfie-ld PLAN VIEW ServiceP 6400 BP EXPLORATION Z-26 PRUDHOE BAY E.W.E. AUDI #2 JOB# 700TAK/O0 SCALE: ~ inch = 800 feet + :1093 · _F~5 +/ 9960' +/ 9585' 9209 ' +//~8739 ' +/ 8355' +/ ' 6631 ' +~6349 ' , / 6066 ' 5600 4800 40OO 3200 z 0 2400 ~ 1600 800 800 8OO 0 800EAST1600t)(f 2400 3200 4000 -1000 2000 TEL Sb Oilfield Services VERTICAL PROJECTION '1000 3000 5000 7000 9000 11000 4.000 · 6000 ~'@000 I rolO000 >12000 :[4000 16000 18000 20000 2612 ' .B Oeg 3085 ' 8.9 deg 3624 ' 2~.4 deg ~19' 36.5 Oeg 6 ' 50.2 deg ~N~lO1 ' 44.6- deg 71 ' 41.7 deg 5 ' 54.1 aeg .09 ' 52.2 deg deg BP EXPLORATION Z-26 PRUDHOE BAY E.W.E. AUDI #2 JOB# 700TAK/O0 SCALE: ~ inch = 2000 feet VERTICAL SECTION (ft) ~REAT LAND DIRECTIONAL DRILLING INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY · BP EXPLORATION WEST EILEEN LOCATION AL489-D21 SHINGLE SHOT & MWD 6/08/89 DIRECTIONAL NAME TITLE SI~NATURE ' 525 FT 10931 FT DEPTH INTERVAL FROM TO /12/ 9 5/zs/s9 DATE SURVEY TAKEN FROM TO THIS IS A RECORD OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. GREAT L.AM3 DIRECTIONAL DRILLING~ INC C] tent .............. : BP EXPLORATION Well ................ : idlEST E/LEEN ~ Z-2~ Ye=fica] Section at.: N %5.70 E ~4agnett¢ Declination: ~0 deg ~8 mtn E ~t~ file ~e ...... : B:~~.DAT ~C~ ~ ~~Y I~ell oss~ed vertical to ~ of 6/08/8~ Computatton: RADIUS OF CURVATURE Suzvey date: 5/16/89 Iqethod ..... : SINGLE SHOT & HWD RKB Height.: 89.5 ft 0.0) DRIFT TRUVERT SUBSEA SECTION DIST DIRECTION RELATIVE C(X)RDINATES ANGLE FROJ4WELL-HEAD 0.00 N 0.00 E 0.00 N 0.00 E -2.31 S 30.00 N -4.83 S 15.00 E -1.14 N 34.00 N Cr*JEPTH DG I~d DEPTH DE. PTH · 0 0 0 0.00 -89.47 525 0 0 525.00 435.53 1075 0 30 1074.99 985.52 1577 0 1S 157/5.98 1487.51 2112 0 30 2111.97 2022.50 0.00 N 0.00 E 0.00 N 0.00 E 2.08 S 1.20 'd 5.25 S 1.62 Id /5.27 S 3.85 'd 261.2 280/5 2898 2991 3085 0 45 2611.94 2522.47 1 24 2805.90 271/5.43 3 24 28F7.82 2808.35 8 54 3083.68 L;~2~4.21 -10.52 S 30.00 -10.34 N 53.70 E -/5.S1 N 48.00 E 1.19 N 42.10 E 13.45 N 44.50 E /5.43 S 8.42 W 8.17 S 6.48 W 5.74 S 3.49 W 0.30 8 1.9/5 E 8./52 N 10.37 E 3179 11 18 317/5.21 3086.74 3252 13 18 3'P. 47.54 3158.07 3~40 1/5 42 3429.10 3339.63 i ~: 3624 21 24 3602.98 3513.S1 3809 2/5 48 3771.79 32i82.32 29.8/5 N 37.50 E 45.27 N 38.50 E 93.72 N 42.80 E 153.72 N 44.S0 E 229.21 N 44.20 E 21.06 N 21.18 E 33.31 N 30.75 E 70.21 N /52.44 E 113./55 N 103.88 E 1/57./55 N 15/5./57 E 3995 33 0 3932.95 3843.48 4119 36 30 4034.82 3945.35 4295 41 18 4171.75 4082.28 4422 43 12 42/55.7/5 4176.29 4611 45 30 4400.90 4311.43 321.86 N 44.20 E 392.41 N 41.00 E 502.34 N 38.90 E S87.09 N 38.50 E 718.35 N 39.90 E 234.09 N 221.27 E 370.80 N 340.04 E 437.44 N 393.43 E 539.81 N 47/5.93 E 4798 46 36 4530./58 4441.21 852.33 N 40.30 E /542.79 N 4983 47 42 4/55/5.49 4E.57.02 987.28 N 39./50 E 74/5.7/5 N 51/55 48 48 4777.68 4/588.21 1122.29 N.3~./50 E 851.38 N S3E~_ 49 42 4899.75 4810.2~ 1263.19 N 3~.~0 E 950.30 N ShOO SO 12 S059.32 4969.85 1451.88 N 38.g0 F 1106.9P N S/53. ~, E /550.73 E 737.28 E 8~7.87 E 948.36 E CLOSURE DISTANCE DG HN S 0.00 N 0 0 0 E 0.00 N 0 0 0 E 2.40 S 30 0 0 W S.SO S 17 7 8 W 7.3/5 S 31 34 24 W 10.60 S S2 37 45 W 10.43 S 38 23 14 W 6.72 S 31 17 0 W 1.98 S 81' 9 13 E 13.4~ N SO 1S 31 E 29.8/5 N 45 10 1E 45.33 N 42 42 S1 E 93.96 N 41 38 45 E 153.97 N 42 25 38 E 229.4/5 N 43 3 35 E 322.12 N 43 23 16 E 392.77 N 43 14 46 E 503.11 N 42 31 22 E S88.34 N 41 S8 6 E 720.32 N 41 27 39 E 854.91 .N 41 14 47 E 990.51 N 41 4 8 E 1126.25 N 40 53 31 E 12~67.8~ N 40 45 5;? E 1457.68 N 40 35 12 E DOG LE( deg/lOi 0.00~ 0.00~ O. 0~: 0. OS~ O. 04'~ O. OSt O. 33~ 2.17~ 2.90J 2.97~, 2.56! 2.74: 1.811 2. SSi 2.~1~, 3.33: 2.9/5~ · 2.77t 1. 1.27~ 0. SC)! O. 63; 0 0 0.31; ~E,ST E ! L.EEN ~ Z RECORD OF SURVEY I~EAS DRIFT TRUVERT SLE~EA SECTION DIRECTION RELATIVE COORDINATES DEPTH 136 I~1 DEPTH DEPTH DIST ANGLE FR(~ WELL-HEAD 7101 44 36 6068.25 B978.78 2B47.72 N 35.70 E 1999.76 N 1608.32 E '7240 44 0 6167.73 6078.26 2643.18 N 34.70 E 2079.08 N 1664.28 E 7S77 42 18 6413.S9 6324.12 2870.17 N 36.80 E 2266.12 N 1798.92 E 7671 41 42 6483.44 6393.97 2~32.39 N 37.80 E 2316.1S N 1837.04 E 7794 42 42 6574.B6 648B.09 3014.15 N 37.10 E 2381.74 N 1887.28 E 7889 4S 30 6642.77 6SS3.30 3079.57 N 37.80 E 2434.22 N 1927.47 E 8018 BO 12 6729.:i~- £.539.85 3174.32 N 38.20 E 2509.56 N 1986.34 E 8167 ,S4 0 d~;20,83 6731,36 32~1,00 N 39.20 E 2601,30 N 2059,84 E 8355 54 0 6931.33 6841.86 3442.01' N 38.50 E 2719.75 N '2155.24 E 8S44 S4 48 7041.35 69S1.88 3S94.97 N 42.10 E 2836.94 N 22S4.62 E 8739 S3 54 7155.01 706S.S4 37S3.14 N 42,40 E E<2S4.23 N 2361,16 E 8927 S2 24 7267.7S 7178.28 3903.33 N 42.40 E 306S.31N 2462.60 E 9209 S2 12 7440.20 73S0.73 4126.22 N 43.80 E 3228.23 N 261S.0S E 9:!~:28 S1 48 75S6.S6 7467.09 427S.02 N 42.80 E 3336.62 N 2717.19 E 9S85 51 18 7672.84 7S83.37 4421.32 N 43.S0 E 3443.46'N 2817.35 E 97S3 S2 0 7777,08 7687.61 4SS3.01 N 44.S0 E 3S38,23 N 2908,87 E 9866 52 36 7846.18 77S6.71 4642.40 N 44.50 E 3602.00 N 2971.54 E 9960 S2 6 7903.60 7814.13 4716.82 N 46.30 E 3654.26 N 3024.S3 E 10242 46 48 8086,87 79~7,40 4929.61 N 56,80 E 3787,27 N 3192,04 E 10336 47 30 .8150,79 ..8061,32 4997.18 N 57,20 E. 3824,80.N. 3249,84.E 10640 44 48 8361.38 8271.91 S203.79 N.72.30 E 3918.04 N 3447.S3 E 10808 43 12 848,2.22 8392.7S 530S.S7 N 77.60 E 3948.33 N 3S~0.19 E 10931 42 30 8S72.40 8482.93 S37S.32 N 80.80 E 3964.00 N 3~42.34 E CLOSURE DIST~ DG ~ S 1812.20 N 40 3 4 E 2024.01 N 39 42 38 E 2231.33 N 39 21 22 E 23S7.64 N 39 7 S9 E 243~.SS N 3~ 0 14 E 2S~6.27 N 38 48 30 E 2F._~3.16 N 38 40 37 E 2893.34 N 38 26 38 E 29S~.22 N 38 2S 10 E 3038.83 N 38 23 3S E 3104,93 N 38 22 23 E 3200.S4 N 38 21 43 E 3318.09 N 38 22 26 E 3470,18 N 38 23 41E 3623.74 N 38 28 32 E 3781.87 N 38 38 1E 3931.99 N 38 46 39 E 41S4.S1 N 3c2 0 34 E 4303.04 N 39 9 28 E 4449.14 N 39 17 21 E 4S80,46 N 39 2S 28 E 4669,S2 N 39 31 17 E 4743,S6 N 39 36 49 E 49S3.03 N 40 7 31E S019.02 N 40 21 13 E S218.86 N 41 20 42 E B316.41 N 42 2 27 E S383.31 N 42 34 43 E DOG LEi deg/lOl O. 36~ O. 571 O. 52( O. 0.41! O. S5' O. S7t O. 79: O. 85, 2.97: 3.64t 2.58t O. 24, 1. 341 0.47; O. 0 O. 38~ 0.35 0 .SS' 0.53 1.30, 2.72! 0.78 1.7S~ 1.31' C WEST E ! LEEN ~ . Z-26 DATA INTERPOLATED FOR EVEN 100 FEET OF: SUB~EA DEPTH ~/08/89 MEAS. DEPTH 89 189 P89 389 789 1089 1189 1289 1389 1489 1689 1789 1989 2089 2190 ~290 2390 2~90 2590 2690 2790 ~890 2990 TRU VERT SUB SEA 1~I3-TVD VERT]CAL DEPTH DEPTH DIFF. CORRECT 89 0 0 0 189 100 0 0 289 200 0 0 389 300 0 0 ~89 ~00 0 0 589 500 0 0 689 600 0 0 789 700 0 0 889 800 0 0 989 90O 0 0 1089 1000 0 0 1189 1100 0 0 1289 1200 0 0 1389 '1300 0 0 1489 1400 0 0 1589 1500 0 0 1689 1600 0 0 1789 1700 0 0 1889 1800 0 0 1989 1900 0 0 2089 2000 0 0 2189 2100 I 1 ~89 2200 1 0 2389 2300 I 0 2489 2400 .. 1 0 2589 2500 1 0 2689 2600 1 0 2789 ~'/'00 1 0 2889 2800 1 0 Z~89 ~-~:200 1 0 RELATIVE ~INATES FROM WELL-HEAD 0.00 N 0.00 E 0.00 N 0.00 E 0.00 N 0.00 E 0.00 N 0.00 E 0.00 N 0.00 E 0.24 S O. 14 W O.~d2 S 0.2k5 W 1.00 S 0.58 W 1.38 S 0.80 W 1.76 S 1.01 W 2.17 S 1.21 W 2.80 S 1.30 W 3.43 S 1.38 W 4.07 S 1.46 W 4.70 S 1.54 W 5.28 S 1.67 W 5.47 S 2.09 W 5.~ 5 2.51 W 5.85 S 2.92 W 6.04 S 3.34 W 6.23 S 3.76 W 6.30 S 4.56 W 6.33 S 5.48 W 6.36 S 6.39 W · 6.39 S 7.30 W 6.42 S 8.22 W 7.13 S 7.(:~ :1,/ 0.36 S 1.90 E WEST E! LEEN // Z-26 DATA /NTERPOLAT~ FOR EVEN 100 FEET OF' 8UBSEA DEPTH 6/08/89 ME'AS. TRU VE. RT ~ SEA t~-TVD VERTZCAL. DEPIH DEPTH DEPTH DIFF. CORREC1 3091 3089 3000 2 1 3193 3189 3100 4 2 3Z~:25 3289 3200 6 2 33~ 3389 3300 10 ~ · 3504 3489 ~00 15 S 3~10 3589 3500 21 6 3719 3/89 3~00 30 9 38Z~,; 3789 3700 40 10 3945 3889 3800 56 1/5 4 0/54 ' 3989 3900 75 19 4189 4089 4000 100 25 4319 4189 4.100 130 30 4455 4289 4200 1~5 3/5 4739 4489 4400 250 44 ~183 4789 4700 3~4 50 ~:J~ 488~ 4800 447 53 5647 5089 5000 558 S~ 6108 5389 5300 719 53 ~60 S489 E~O0 771 ~409 5589 SSO0 820 4~ ~557 SF.~9 S600 ~ 48 6704' 5789 S700 915 47 ~848 F.d~89 S800 959 44 6990 5989 5900 1001 4~ REL.AT IVE CiX)RDIN~TES FFK~ k/ELL-HEAD 9.40 N 11.05 E 23.33 N 22.96 E 41.83 N 38.07 E 62.16 N SS.S2 E 85. Z~2 N 76.83 E 110.28 N 141.32 N 174.94 N 216.16 N 262.95 N 100. ~5 E 130.92 E 163.75 E 203.84 E 247.81 E 319.90 N 383.36 N 455.40 N S31.16 N 610.09 N 297.41 E 3S0.11 E 408.08 E 4&c2.87 E S36.11 E 691.38N 775.23 N 861.90 N 951.13 N 1042.78 N 604.34 E 674.28 E 746.03 E 820.24 E 895.~ E 1134.96 N 1~. 74 N 1320.51 N 1412.70 N 1S03.3/5 N 1593.04 N 1681.28 N 1768.23 N 1853.24 N 1935.61 N 970.10 E 1042.19 E 2114.28 E 1185.18 E 1253.00 E 1319.22 E 1383.10 E 1445.24 E 1SOS. 12 E 1563.07 E t~EST E! LEEN ii' Z-26 DATA INTERPOLATED FOE EVEN 100 FEET OF SI..IIBSEA DEPTH 6/08/89 HEAS. TRUVERT SUB SEA 11~I3-TVD VERT/CAL DEPTH DEPTH DEPTH DIFF. C~CT 7131 6089 6000 1042 41 7L:~'O 6189 6100 1081 39 7407 /5~.89 6200 1118 37 7544 6389 6300 llSS 37 · 7679 6489 6400 1190 3S 7815 6589 6500~ 1226 36 7959 6689 6600 1a:~'O 44 8116 6789 6700 1327 S7 8284 6889 6800 1395 68 Eb5~7 7089 7000 1538 72 8796 7189 7100 1607 69 8963 7289 7200 1674 67 " 9126 7389 7300 1737 63 9289 7489 7400 1800 63 9451 7589 7S00 186~ 62 9773 7789 7700 1984 61 9937 7889 7800 2048 64 10092 7989 7900 2103 SS 10246 8089 8000 2157 54 10392 8189 8100 2203 46 10S36 8289 8200 ~47 44 10679 8389 8300 2:Ex20 43 10818 8489 8400 23L~ 39 RELAIIVE COOrdINATES FRO~Ig~ELL-HEAD 2016.68 N 2095.62 N 2171.69 N 2247.77 N 2320.49 N l~:d20.26 E 1676.18 E 1730.95 E 1785.72 E 1840.36 E 2393.21N 2474.87 N 2569.86 N 2674.88N 2781.67 N 1896.06 E 1959.23 E 2034.65 E 2119.10 E 2207.76 E 2886.59 N 2988.18 N 3085.83 N.. 3180.30 N 3274.12 N 2L:~9.73 E 2392.17 E 2481.80 E 2570.20 E 2658.30 E 3366.86N 34S8.58 N 35~9.67 N 3641.40 N 3716.58 N 2745.54 E 2831.9S E 2920.11E 3011.49 E 3103.02 E 3788.80 N 3194.39 E 3841.92 N 3286.15 E 3886.20 N 3380.02 E 3925.08 N 3473.72 E 3949.59N 35(:~..79 E I~ST EILEEN ~.Z-~6 ~/08/89 DATA /NTERPOLATED FOR EVEN 1000 FEET OF HEAS~ DEPTH MEAS. TRU VERT SUB SEA DEP'[H DEPTH DEPTH RELATIVE ~ZNATES FROHNELL-HEAD 1000 1000 911 1.79 S 1.0~ N 2000 2000 1911 6.0& S 3.39 N 3000 29":)9 2910 O.SS N 2.76 E ~000 3937 38~8 236.19 N 223.20 E 5000 ~668 ~579 756.5~ N 658.82 E 6000 5319 S230 13~7.S1N 1135.26 E 1000 5997 5908 19~1.50 N 1567.23 E 8000 6717 6628 2~99.05 N 1978.12 E 9000 731,2 7223 3107.~9 N 2502.06 E 10000 7930 78~1 3673.12 N 30~8.29 E 5O0 tO00 1500 2000 .... VER. T,,~,C~.L, sECTION ' BP EXPLORATION NEST EILEEN # Z-26 SECTION AT N 45.70 E TVD SCALE: i inch = t000 feet DEP SCALE: ! inch = tooo feet DRANN : 6/08/89 2500 3000 3500 T 4000 V 4500 D 5000 5500 6000 6500 7000 7500 6000 8500 go00 -500 o 5OO tO00 tSO0 2000 25O0 3000 Depart. ute 3~00 4000 4~00 5000 900 I~ker, 3:t~erfl:tftcat~on ~ TVO OGPI~ ~ 0 0 0 8J TO SOni 8b'Ta 837S HORIZONTAL VIEW BP EXPLORATION WEST EILEEN # Z-86 CLOSURE: 5383 ft N 48.5 E DECLINATION: 30.80 ~eg E SCALE · I ~nch = 800 feet DRAWN: 6/08/89 5800 ......... [ ............................................. 4800 ...........~ ............................................ 4400 4000 3600 3800 2800 8400 t600 t200 BO0 400 400 0 400 400 ,' i 800 t200 t600 8000 8400 2800 3200 3600 4000 4400 ,SUB.~URFACE DIRECTIONAL ~'URVEY ~'~ONTINUOUS Dm .,,,o [~q /o'~ [-~OOL Company BP EXPLORAT! ON Well Name- Z-26 (12-17-11-12,) , FieldlLo~:atlon 7z~ 'FNL,3108 FEL~Sec.19~T11N.I~12E PRUDHOE BAY, NORTH SLOPE, ALASKA Jol~ Reference No. Date 73365 Loaaed By: June 4, 1989 Computed fiX: SARBER KOHRING SCHLUMBERGER GCT DIRECTIONAL SURVEY CUSTOMER LISTING FOR B.Po EXPLORATION Z-26 (12-17-11-12) PRUDHOE BAY NORTH SLOPEr ALASKA SURVEY DATE: O~-JUN-89 ENGINEER: SARBER METHODS OF COMPUTATION TOOL LOCATION: TANGENTIAL- AVERAGED DEVTATION AND AZIMUTH INTERPOLATION: LINEAR VERTICAL SECTIaN: HORIZ. giST. PROJECTED ONTO A TARGET AZINUTH aF NORTH 45 DFG 56 lqIN EAST 3.P. EXPLORATION [-26 (12-17-11-12) aRUOHOE BAY ~ORTH SLOPE~ ALASKA COMPUTATION DATE: 13-JUN-89 TRUE SUB-SEA COURSE EASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN DATE OF SURVEY: 04-JUN-89 KELLY BUSHING ELEVATION: 89.4,7 FT ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH VERTICa, L DOGLEG RECTANGULAR COORDINATES HDRIZ. DEPARTURE S~CTION SEVERITY NORTH/SOUTH EAST/~IEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET OEG MIN 0.00 0.00 -89.4,7 0 0 N 0 0 E 0.00 0.00 0.00 N 0.00 100.00 100.00 10.53 0 27 S 0 57 E -0.55 O.Ol 0.73 S 0.05 200.00 199.99 110.52 0 21 S 10 17 E -0.98 0.12 1.41 S 0.00 300.00 299.99 210.52 0 19 S 16 1.Z 5 -1.26 0.00 1.97 S 0.16 400.00 399..99 310.52 0 17 S 14 23 E -1.50 0.00 2.4,6 S 0.30 500.00 499.99 410.52 0 19 S 11 4,7 E -1.77 0.00 2.98 S 0.4,2 600.00 599.99 510.52 0 23 S 8 16 E -2.11 0.00 3.57 S 0.52 700.00 699.98 610.51 0 29 S 4, 25 E -2.56 0.14 4.30 S 0.60 800.00 799.98 710.51 0 39 S 0 59 E -3.22 0.22 5.29 S 0.64 .900.00 899.97 810.50 0 4.4, S 4, 49 E -4.01 0.00 6.49 S 0.69 1000.00 999.97 910.50 1100.00 1099.96 1010.49 1200.00 1199.95 1110.48 1300.00 1299.95 1210.4,8 1400.00 1399.95 1310.48 1500.00 1499.95 1410.4,8 1600.00 1599.95 1510.48 1700.00 1699.95 1610.48 1800.00 1799.94, 1710.4,7 1900.00 1899.93 1810.46 0 40 S 4. 58 E -4.78 0.00 7.69 $ 0 40 S 12 5 E -5.4,9 0.10 8.88 S 0 27 S 8 43 E ~6.02 0.31 9.86 S 0 4, S 28 48 E -6.36 0.34. 10.36 S 0 6 N 62 12 W -6.32 0.03 10.28 S 0 32 S 65 11 E -6.19 0.03 10.47 S 0 29 S 51 33 E -5.96 0.30 11.00 S 0 15 lq 60 30 ~1 -6.02 1.35 11.20 S 0 38 N 50 12 W -6.09 0.16 10.59 S 0 42 tq 49 6 W -6.24 0.14 9.82 S 0 13 N 55 3 W -6.29 0.38 0 0 S 22 4.9 W -6.35 0.00 0 9 S 74 24 14 -6.42 0.30 0 28 S 51 4 k{ -6.99 0.02 0 45 S 33 3 ~1 -8.01 0.45 I 2 S Z7 14, kl -9.54 0.21 I 16 S 25 13 14 -11.4,0 0.12 0 46 S 18 12 kl -13.28 1.62 0 54 Iq 72 22 E -13.09 2.60 3 34 N 4,9 55 E -9.10 3.09 6 21 9 16 2000.00 1999.93 1910.46 2100.00 2099.93 2010.4,6 2200.00 2199.93 2110.4.6 2300.00 2299.93 2210.46 24.00.00 2399.92 2310.45 2500.00 2499.91 24,10.4,4 2600.00 2599.89 2510.42 2700.00 2699.87 2610.40 2800.00 2799.86 2710.39 2900.00 2899.77 2810.30 N 42 10 E -0.52 3.36 N 42 31 E 13.20 2.45 N 37 18 ~ 31.41 2.61 N 39 6 E 53.68 1.72 N 4,1 9 E 79.31 2.37 N 42 58 E 108.57 2.39 N 4,3 41 E 142.10 2.88 N 43 39 E 180.10 2.43 N 43 30 E 222.70 3.08 N 43 I E 170.00 3..36 3000.00 2999.39 2909.92 3100o00 3098.4.3 3008.96 3200.00 3196.72 3107.25 11 55 3300.00 3294.16 3204.69 13 58 3400.00 3390.78 3301.31 15 56 3500.00 3486.37 3396.90 18 15 3600.00 3580.56 34.91.09 20 58 3700.00 3673.03 3583,.56 23 48 3800.00 3763.4.7 3674. O0 26 4.1 3900.00 3851.53 3762.06 30 I 0.00 N 0 0 E O. 73 S 4, 12 N 1.41 S 0 7 E 1.98 S 4 39 E 2.48 S 6 55 E 3.01 S 8 3 E 3.60 S 8 18 E 4.34 S 7 58 E 5.33 S 6 52 E 6.53 S 6 6 E 0.79 .E 7.73 S 5 50 E 0.95 E 8.93 S 6 6 E 1.17 E 9.93 S 6 46 E 1.18 E ' 10.4.3 S 6 31 E 1'.17 E 10.35 S 6 28 E 1.52 E 10.58 S 8 15 E 2.35 E 11.25 S 11 4 E 2.47 E 11.47 S 12 25 E 1.77 E 10.73 S 9 30 E 0.83 E 9.85 S 4 4,8 E 9.26 S 0.20 9.21 S 0.09 9.23 S 0.00 9.53 S 0.50 10.31 S 1.17 11.70 S 1.96 13.50 S 2.80 15.37 S 3.60 15.57 S 3.15 13.32 S 0.23 9.26 S I 16 E 9.21 S 0 32 E 9.23 S 0 I 14 9.54, S 3 1 10.38 S 6 28 14 11.86 S 9 31 13.78 S 11 42 15.78 S 13 11 15.88 S 11 26 · 13.32 S 0 58 E 7.31 S 6.35 E 9.68 S 41 0 E 2.73 N 15.73 E 15.96 N 80 10 E 16.94 N 27.32 E 32.15 N 5~3 12 E 34.65 N 41.17 E 53.81 N 49 55 E 54.32 N 57.80 E 79.32 N 4,6 4.7 E 76.07 N 77.46 E 108.57 N 4.5 31 E 100.45 N 100.53 E 14,2.12 N 45 I E -127.95 N 126.80 E 180.14. N 4,4 4,5. E 158.84 N 156.20 E 222.77 N 4.4,31 E 193.33 N 188.64' E 270.11 N 44. 18 E B.P. EXPLORATION Z-26 (12-17-11-12) PRUDHOE BAY NORTH SLOPEr ALASKA COMPUTATION DATE: 13-JUN-89 PAGt:: -, DATE OF SURVEY: 04-jUN-89 KELLY BUSHING ELEVATION: 89.47 FT ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED OEPTH TRUE SUS-SEA COURSE EASURED VERTICAL VERTICAL DEVIATION AZIMUTH OEPTH OEPTH DEPTH OEG MIN DEG ~4IN 4000.00 3936.54 3~47.07 33 22 4100.00 4018.64 3929.17 36 22 4200.00 4097.34 4007.87 39 35 ¢300.00 4173.24 4083.77 41 36 4400.00 4247.09 4157.62 43 4 4500.00 4319.54 4230.07 44 15 4600.00 4390.23 4300.76 45 38 4700.00 4459.59 4370.12 46 28 4800.00 4528.37 4438.90 46 41 4900.00 4596.60 4507.13 47 17 5000.00 4664.05 4574.58 47 57 5100.00 4730.61 4641.14 48 32 5200.00 4796.47 4707.00 49 2 5300°00 4861.52 4772.05 49 40 5400.00 4925.99 4836.52 50 9 5500.00 4989.85 4900.38 50 18 5600.00 5053.87 4964.40 50 13 5700.00 5118.01 5028.54 49 58 5800.00 5182.44 5092.97 49 46 5900.00 5247.19 5157.72 49 39 6000.00 5312.16 5222.69 49 13 6100.00 5377.69 5288.22 48 52 6200.00 5443.53 5354.06 48 47 6300.00 5509.65 5420.18 48 24 6400.00 5576.39 5486.92 47 56 6500.00 5643.71 5554.24 47 24 6600.00 5711.73 5522.26 46 53 6700.00 5780.43 5690.96 46 19 6800.00 5849.81 5760.34 ~5 48 6900.00 5919.86 5830.39 45 16 TO00.O0 5990.43 5900.96 44 58 7100.00 6061.33 5971.86 44 40 7200.00 6132.79 6043.32 44 7 7300.00 6204.90 6-115.43 ~3 47 7400.00 6277.32 6187.85 43 19 7500.00 6350.43 6260.96 42 41 7600.00 6424.19 6334.72 42 20 7700.00 6498.52 6609.05 41 33 7800.00 6572.82 6483.35 42 50 7900.00 6644.29 6554.82 46 10 VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MZN N 43 I E 322.56 3.13 N 41 4 E 379.50 3.58 N 39 41 E 440.88 3.21 N 37 56 ~ 505.44 1.80 N 38 16 E 572.23 1.05 N 38 27 E 640.55 1.77 N 38 55 E 710.71 1.13 N 39 21 E 782.24 0.07 N 39 16 E 854.35 0.64 N 39 8 E 926.96 0.74 231.79 N 224.55 E 322.72 N 44 5 E 274.08 N 262.87 E '379.76 N 43 -48 E 321.00 N 302.86 E 4r, 1.33 N 43 20 E 371.91 N 343.44 E 506.23 N 42. 43 E 424.97 N 385.0,r, E 573.46 N 42 11 E 479.00 N 427.83 E 642.25 N 41. 46 E 534.25 N 471.99 E 712.88 N 41 28 E 590.07 N 517.52 E 784.86 N 41 15 E 646.21 N 563.53 E 857.41 N 41 5 E 702.87 N 609.73 E 930.48 N 40 56 E N 38 54 E 1000.25 N 38 57 E 1074.32 N 38 44 E 1149.00 N 38 38 E 1224.34 N 38 31 E 1300.16 N 38 9 E 1376.43 N 37 53 E 1452.53 N 37 27 E 1528.45 N 36 59 E 1604.04 N 36 37 E 1679.28 N 36 23 E 1754.28 N 36 6 E 1828.75 N 35 52 E 1902.88 N 35 32 E 1976.70 N 35 16 E 2049.93 N 34 53 E 2122.55 N 34 28 E 2194.45 N 34 11 E 2265.62 N 33 52 E 2336.09 N 33 47 E 2405.86 N 33 41E 2475.10 N 34 6 E 2544.08 N 34 11 E 2612.55 N 34 55 E 2680.46 N 35 17 E 2748.21 N 35 25 E 2~15.27 N 35 46 E 2881.69 N 36 16 E 2947.59 N 36 55 E 3013-62 N 37 11E 3082.71 0.89 0.37 1.06 0.34 0.77 0.56 0.36 0.45 0.69 0.51 0.39 0.45 0.28 0.41 0.41 0.63 0.42 0.67 0.72 0.32 0.32 0.68 0.72 0.60 0.69 0.88 0.55 0.97 2.42 3.54 760.24 N 656.20 E 1004.27 N 40 48 E 818.31 N 703.07 E 1078.87 N 40 40 E 876.89 N 750.31 E 1154.08 N 40 33 E 936.20 N 797.74 E 1229.99 N 40 26 E 995.92 N 845.46 E 1306.39 N. 40 20 E 1056.30 N 893.17 E 1383.30 N 40 13 E 1116.82 N 940.50 E 1460.07 N 40 6 E 1177.55 N 987.38 E 1536.73 N 39 59 E 1238.43 N 1033.65 E 1613.12 N 39 51 E 1299.46 N 1079.28 E 1689.22 N 39 43 E 1360.57 N 1124.52 E 1765.13 N 39 34 E 1421.47 N 1169.21 E 1840.55 N 39 26 E 1482.38 N 1213.42 E 1915.68 N 39 18 E 1543.29 N 1257.20 E 1990.55 N 39 10 E 1603.99 N 1300.36 E 2064.88 N 39 2 E 1664.51 N 1342.85 E 2138.65 N 33 54 E 1724.78 N 1384.57 E 2211.76 N 38 45 E 1784.80 N 1425.52 E 2284.21 N 38 37 E 1844.48 N 1465.83 E 2356.01 N 3t3 28 E 1903.79 N 1505.52 E 2427.14 N 38 20 E 1962.72 N 1544.85 E 2497.76 N 38 12 E 2021.25 N 1584.19 E 2568.09 N 38 5 E 2079.15 N 1623.44 E 2637.88 N 37 59 E 2136.25 N 1662.68 E 2707.04 N 37 54 E 2192.63 N 1702.39 E 2775.93 N 37 50 E 2248.28 N 1741.86 E 2844.09 N 37 46 E 2303.22 N 1781.12 E 2911.57 N 37 43 E 2357.32 N 1820.46 E 2978.43 N 37 41 E 2411.05 N 1860.36 E 3045.34 N 37 39 E 2466.82 N 1902.52 E 3115.25 N 37 38 E B.P. EXPLORATION Z-26 (12-17-11-12) PRUDHOE BAY NORTH SLOPEr ALASKA COMPUTATION DATE: 13-JUN-89 DATE OF SURVEY: 04-JUN-89 KELLY BUSHING ELEVATION: 89.47 FT ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED OEPTH TRUE SUB-SEA 'couRsE VERTICAL 'DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE EASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH DEPTH DEPTH DEPTH DEG MIN BO00, O0 6711.38 6621.91 49 40 8100.00 6773.83 6684.36 52 52 8200.00 6832.97 6743.50 54 10 8300.00 6891.66 6802.19 54 8400.00 6950.36 6860.89 54 7 8500.00 7008.71 6919.24 54 34 8600.00 7066.34 6976.97 55 1 8700.00 7124.16 7034.69 54 13 8800.00 7183.10 7093.63 53 32 8900.00 7243.23 7153.76 52 38 9000.00 7304.15 7214.68 52 20 9100.00 7365.12 7275.65 52 29 9200.00 7426.19 7336.72 52 12 9300,00 7487.64 7398.17 51 54 9400.00 7549.43 7459.96 51 50 9500.00 7611.47 7522.00 51 29 9600.00 7673.81 7584.34 51 29 9700.00 7735.83 7646.36 51 55 9800.00 7797.26 7707.79 52 24 9900.00 7858.06 7768.59 52 27 0000o00 7919.42 7629.95 51 50 0100.00 7982.13 7892.66 50 1 0200.00 8048,29 7958.82 47 23 0300.00 8116.24 8026.77 47 25 0400.00 8183.50 8094.03 48 0 0500.00 8250.60 8161.13 47 24 0600.00 8319.53 8230.06 45 23 0700.00 8390.57 8301.10 44 9 0800.00 8462.70 8373.23 43 21 0900.00 8535.74 8446.27 42 41 1000.00 8609.14 8519.67 43 20 1100.00 8680.43 8590.96 45 24 1200.00 8749.81 8660.34 46 39 1300o00 8816.75 8727.28 49 35 1400.00 8879.34 8789.87 52 59 1500.00 8937.71 8848.24 55 11 1600.00 8993.17 8903.70 57 43 1700o00 9044.75 8955.28 60 24 1800.00 9091.94 9002.47 62 50 1850.00 9114.77 9025.30 62 50 D'EG MIN FEET DEG/IO0 FEET FEET FEET DEG MIN N 37 8 E 3155.97 N 37 24 E 3233.17 N 37 37 F 3312.92 N 38 10 E 3393.09 N 39 0 E 3473.37 N 40 21 E 3554.11 N 41 14 E 3635.49 N 41 37 E 3716.84 N 41 30 E 3797.38 N 41 38 E 3877.06 N 42 7 E 3956.15 N 42 14 E 4035.25 N 42 28 E 4114.28 N 42 50 E 4193.04 N 43 4 E 4271.56 N 43 15 E 4349.90 N 43 28 E 4428.01 N 43 25 E 4506.37 N 43 57 E 4585.22 N 44 33 E 4664.58 N 45 13 E 4743.53 N 47 8 E 4821.41 N 55 21 E 4895.96 N 57 59 E 4967.93 N 57 43 E 5040.33 N 60 42 E 5112.63 N 67 54 E 5181.40 N 76 11 E ~244.51 N 78 59 E 5303.36 N 60 47 E 5360.11 N 82 40 E 5415.30 N 83 4 E 5471.31 N 83 8 E 5528.61 N 62 37 E 5587.95 N 82 I E 5650.76 N 81 47 E 5716.49 N 81 30 E 5784.03 N 80 56 E 5853.93 N 80 19 E 5926.44 N 80 19 E 5963.15 3.63 2.75 0.51 0.53 1.06 0.77 1.08 0.90 0.89 0.29 2525.92 N 1947.28 E .3189.38 N 37 38 E 2588.06 N 1994.56 E 3267.47 N 37 37 E 2652.04 N 2043.64 E 3348,,10 N 37 37 E 2715.95 N 2093.35 E 3429.06 N 37 37 E 2779.28 N 2143.77 E 3510.01 N 37 39 E 2841.74 N 2195.68 E 3591.17 N 37 4.1 E 2903.66 N 2249.01 E 3672.77 N 37 46 E 2964.74 N 2303.10 E 3754.19 N 37 50 E ~ 3025.21 N 2356.66 E 3834.81 N 37 55 E .3085.01 N 2409.66 E 39L4.56 N 38 0 E 0.23 0.21 0.54 0.52. 0.27 0.49 0.31 0.35 1.08 1.09 3144.08 N 2462.57 E 3993.68 N 38 4 E 3202.82 N 2515.79 E 4072.74 N 38 9 E 3261.35 N 2569.12 E 4151.72 N 38 14 E 3319.38 N 2622.56 E 4230.38 N 38 19 E 3376.90 N 2676.17 E 4308.75 N 38 24 E 3434.14 N 2729.80 E 4386.92 N 38 29 E 3490.98 N 2783.48 E 4464.83 N 38 34 E 35.47.96 N 2837.39 E 4542.99 N 38 39 E 3605.07 N 2891.84 E 4621.61 N 38 44 E 3661.93 N 2947.26 E 4700.64 N 38 50 E 0.72 6.37 4.60 0.99 0.59 4.88 6.21 4.82 1.29 1.00 3717.82 N 3003.02 E 4779.16 N 38 56 E 3772.22 N 3058.76 E 4856.51 N 39 2 E 3819.05 N 3117.19 E 4929.71 N 39 13 E 3858.91 N 3178.77 E 4999.58 N 39 29 E 3898.26 N 3241.44 E 5069.85 N 39 45 E 3936.81 N 3304.76 E 5140.03 N 40 I E 3968.42 N 3369.87 E 5206.18 N 40 gO E 3990.06 N 3436.75 E 5266.10 N 40 44 E 4004.77 N 3504.43 E 5321.58 N 41 11 E 4,016.93 N 3571.63 E 5375.16 N 41 39 E 3.62 1.95 1.55 3.38 3.24 1.09 2.20 2.95 4026.88 N 3638.81 E 5427.41 N 42 6 E 4035.53 N 3708.39 E 5480.67 N 42 35 E 4044.05 N 3779.90 E 5535.52 N 43 4 E 4053.24 N 3853.60 E 5592.76 N 43 33 E 4063.73 N 3930.86 E 5653.81 N 44 3 E 4075.21 N 4011.23 E 5718.16 N 44 33 E 4087.26 N 4093.56 E 5784.72 N 45 3 E 4100.32 N 4178.21 E 5854.07 N 45 32 E 0.00- 4114.74 N 4265.17 E 5926.45 N 46 2 E 0.00 4122.22 N 4309.02 E 5963.25 N 46 16 E S.P. EXPLO'R AT ]:ON ~,-26 (:12-17-11-12) ~RUDHOE BAY ~IORTH SLOPEr ALASKA TRUE SUB-SEA COURSE :ASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN COMPUTA'T~ON DATE: 13-JUN-89 PAGE DATE OF SURVEY: Ot,-JUN-8 KELLY BUSHING ELEVATION: 89o~7 FI ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ,. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET OEG/IO0 FEET FEET FEET OEG 3.P. EXPLORATION [-26 (12-17-11-12) >RUDHOE BAY 40RTH SLOPEr ALASKA COMPUTATION DATE: 13-JUN-89 TRUE SUB-SEA COURSE ~,ASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN DATE OF SURVEY: 04-JUN- KELLY BUSHING ELEVATION: 89.47 FT ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH VERTICAL OOGLEG RECTANGULAR COORDINATES HORZZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH 0.00 0.00 -89.47 0 0 LO00.O0 999.97 910.50 0 40 !000.00 1999.93 1910.46 0 13 3000.00 2999.39 2909.92- 6 21 iO00.O0 3936.54 3847.07 33 22 iO00.O0 4664.05 4574.58 47 57 SO00.O0 5312.16 5222.69 49 13 ro00.O0 5990.43 5900.96 44 58 3000.00 6711.38 6621.91 49 40 9000.00 7304.15 7214.68 52 20 FEET DEG/IO0 FEET FEET FEET DEG )000.00 7919.42 7829.95 51 50 LO00.O0 8609.14 8519.6'7 43 20 t850.00 9114.77 9025.30 62 50 N 0 0 E 0.00 S 4 58. E -4.78 N 55 3 Id -6.29 N 42 10 E -0.52 N 43 1 E 32Z. 56 N 38 54 E 1000.25 N 36 23 E 1754.28 N 33 41 E 24.75.10 N 37 8 E 3155.97 N 42 7 E 3956.15 N 45 13 E 4743.53 N 82 40 E 5415.30 N 80 19 E 5963.15 0.00 0.00 0.38 3.36 3.13 0.89 0.39 0.32 3.63 0.23 0.72 3.62 0.00 0.00 N 0.00 E 0.00 N 0 0 E 7.69 S 0.79 E 7.73 S 5 50 E 9,.26 S 0.20 E 9.26 S 1 16 E 7.31 S 6.35 E 9.68 S 41 0 E 231.79 N 224.55 E 322.72 N 44. 5 E 760.24 N 656.20 E 1004.27 N 40 48 E 1360.57 N 1124.52 E 1765.13 N 39 34 E 1962.72 N 1544.85 E 2497.76 N 33 12 E 2525.92 N 1947.28 E 3189.38 N 37 38 E 3144.08 N 2462.57 E 3993.68 N 38 4 E 3717.82 N 3003.02 E 4779.16 N 38 56 E 4026.88 N 3638.81 E 5427.41 N 42 6 E 4122.22 N 4309°02 E 5963.25 N 46 16 E COMPUTATION DATE: 13-JUN-89 t.P. EXPLORATION :-26 (12-17-11-12) ~RUDHOE BAY IORTH SLOPEr ALASKA TRUE SUB-SEA COURSE :ASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH OEP'TH DEG MIN DEG DATE OF SURVEY: 04-JUN-89 KELLY BUSHING ELEVATION: 89.47 FT ENGINEER: SARBER · INTERPOLATEO VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HOR[Z. OEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH , FEET DEG/IO0 FEET FEET FEET DEG MIN . 0.00 0.00 -89.47 0 0 N 0 0 E 0.00 0.00 0.00 N 0.00 E 89.47 89.47 0.00 0 28 S 0 27 W -0.49 0.24 0.64 S 0.05 W 189.48 189.47 100.00 0 21 S 9 5 E -0.94 0.02 1.35 S 0.01 W 289.48 289.47 200.00 0 19 S 16 38 E -1.23 0.00 1.91 S 0.14 E 389.48 389.47 300.00 0 17 S 14 18 E -1.47 0.03 2.41 S 0.29 E 489.48 489.47 400.00 0 19 S 12 33 E -1.74 0.00 2.92 S 0.41 E 589.48 589.47 500.00 0 22 S 8 31 E -2.07 0.00 3.50 S 0.51 E 689.48 689.47 600.00 0 28 S 4 28 E -2.50 0.10 4.22 S 0.59 E 789.49 789.47 70.0.00 0 38 S 0 47 E -3.14 0.20 5.17 S 0.63 E .889.50 889.4'7 800.00 0 44 S 4 28 E -3.93 0.00 6.36 S 0.68 E 989.50 989.47 900.00 L089.51 1089.47 1000.00 L189.52 1189.47 1100'00 L289.52 1289.47 1'200.00 L389052 1389.47 1300.00 L489.52 1489.47 1400.00 L589052 1589.47 1500..00 L689.52 1689.47 1600.00 [789.53 1789.47 1700.00 [889.54 1889.47 1800.00 0 40 S 4 34 E -4.71 0.00 7.57 S 0.78 E 0 41 S 10 49 E -5.43 0.00 8.76 S 0.92 E 0 29 S 10 3,2 E -5.97 0.29 9.77 S 1.15 E 0 7 S 8 5 E -6.35 0.47 10.35 S 1.18 E 0 6 N 52 18 W -6.31 0.07 10.29 S 1.18 E 0 30 S 65 26 E -6.23 0.35 10.43 S 1.43 E 0 32 S 52 27 E -5.98 0.50 10.95 S 2.28 E 0 8 N 83 58 W -6.01 1.06 11.22 S 2.50 E 0 37 N 49 59 W -6.08 0.02 10.66 S 1.86 E 0 43 N 49 33 W -6.23 0.00 9..90 S 0.92 E L989.54 1989.47 1900.00' !089.54 2089.47' 2000.00 ~189.54 2189.¢7 2100.00 ~289.54 2289.47 2200.00 ~389.55 2389.47 2300.00 ~4'89.56 2489.47 ~589.58 2569.47 2500.00 2689.60 2689.47 2600.00 2789.60 2789.47 2700.00 2889.68 2889.47 2800.00 0 15 N 51 31 W -6.29 0.51 9.29 S 0.24 E 0 0 ' S 17 21 W -6.34 0.00 9.21 S 0.09 E 0 7 S 75 59 W -6.40 0.14 9.23 S O.OZ E 0 27 S 52 44 W -6.90 0.09 9.48 S 0.43 W 0 43 S 34 21 W -7.88 0.42 10.20 S 1.10 W I 0 S 27 4.2 W -9.37 0.22 11.53 S 1.87 W I 14 S 2:5 4 W -11.18 0.41 13.29 S 2.70 W 0 55 S 23 35 W -13.14 1.03 15023 S 3.55 W 0 40 N 72 47 E -13.21 2.14 15.61 S 3.28 W 3 16 N 50 44 E -9.73 2.37 13.72 S 0.26 W 2990.02 2989.47 2900.00 6 1 ]090.92 3089.47 3000.00 9 3 3192.59 3189.47 3100.00 11 44 3295.16 32 ~9.47 3200.00 13 53 3398064 3389.47 3300.00 15 55 3503.27 3489.47 3400.00 18 20 3609°55 3589.47 3500.00 21 15 3718.03 36~J9.47 3600.00 24 17 3829.20 3789.47 3700.00 27 36 3944.15 3889.47 3800.00 31 31 N 42 28 E -1.57 3.30 N 43 0 E 11.74 2.57 N 37 23 E 29.91 2.87 N 39 0 E 5Z.50 1.69 N 41' 8 E 78.94 Z.36 N 43 0 E 109.62 2.42 N 43 42 E 145.52 2.82 N 43 38 E 187.51 2.61 N 43 22 E 235.97 3.18 N ¢3 I E 292.53 3.44 0,00 N 0 0 E 0.65 S 4 43 W 1.35 S 0 21 W 1.92 S 4 18 E 2.43 S 6 46 E 2.95 S 7 58 E 3.53 S 8 18 E 4.26 S B 2 E 5~21 S 7 0 E 6.39 S 6 8 E 7.61 S 5 52 E 8.81 S 6 I E 9.84 S 6 44 E 10.41 S 6 31 E 10.36 S 6 32 E 10,53 S 7 50 E 11.18 S 11 46 E 11.50 S 12 33 E 10.82 S 9 54 E 9.95 S 5 19 E 9.29 S I 28 E 9.21 S 0 32 E 9.23 S 0 8 E 9.49 S 2 38 W 10.26 S 6 8 W 11.68 S 9 14 W 13.56 S 11 29 W 15.64 S 13 7 W 15095 S 11 51 W 13.73 S I 4 W 8.09 S 5.64 E 9.86 S 34 55 E 1.66 N 14.74 E 14.84 N 8'3 36 E 15.73 N 26.39 E 30.73 N 59 12 E 33073 N 40.42 E 52.64 N 50 9 E 54.04 N 57.55 E 78.95 N 46 48 E 76.84 N 78.18 E 109.62 N 45 30 E 102092 N 102.90 E 145.54 N 45 0 E .133.31 N 131.92 E 187.55 N 44 42. E 168.48 N 165.32 E 236.04 N 44 28 E 209.82 N 204.03 E 292.67 N 44 12 E B.Po EXPLOR ~TION Z-26 (12-17-11-12) PRUDHOE BAY NORTH SLOPEr ALASKA , CO~PUTATIDN DATE: 13-JUN-89 PAGE~ DATE OF SURVEY: 04-JUN-89 ~ KELLY BUSHING ELEVATION: 89.4'7 FT ENGINEER: SARSER · INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUS-SEA COURSE EASURED VERTICAL VERTICAL DEVIATION A'/.IMUTH DE.PTH DEPTH DEPTH DEG IqIN DEG ~IN 4064.01 3989.47 3900.00 35, 13 4189.77 4089.47 4000.00 .39 20 4321.79 4189.47 4100.00 41 58 4458.25 4289.47 4200.00 43 37 4598.92 4389.47 4300.00 45 38 4743.39 4489.47 4400. O0 46 30 4889.51 4589.47 4500. O0 47 13 5038.06 4689.47 4600.00 48 14 5189.32 4789.47 4700.00 48 59 5343.23 4889.47 4800. O0 49 47 5499.40 4989.47 4900.00 50 18 5655.58 5089.47 5000.00 50 6 5'810.86 5189.47 5100.00 49 43 5965.19 5289.47 5200.00 49 26 6117.91 5389.47 5300.00 68 50 6269.56 5489.47 5400.00 48 32 6419051 5589.47 5500.00 47 52 6567038 5689.47 5600.00 47 3 6713009 5789.67 5700.00 66 15 6856.74 5889047 5800.00 45 29 6998.64 5989.47 5900.00 64 58 7139.48 6089.47 6000.00 44 26 7278.63 6189.47 6100.00 43 45 7416.71 6289.47 6200.00 63 12 7552099 6389.47 6300.00 62 27 7687.89 6489.47 6400.00 41 39 7822.76 6589.47 6500.00 43 26 7966.'57 6689.47 6600. O0 68 27 8126011 6789.47 6700.00 53 29 8296027 6889.47 6800.00 54 I 8466.89 6989.47 6900000 54 23 8640025 7089.47 7000.00 54 50 8810.69 7189047 7100.00 53 26 8975.96 7289.47' 7ZO0.O0 52 22 9139.96 7389.47 7300.00 52 26 9302096 7489047 7400.00 51 53 9464063 7589.47 7500.00 51 36 9625016 7689.47 7600.00 51 33 9787027 7789.47 7700. O0 52 18 9951036 7889.47 7800000 52 9 VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG /qIN N 41 57 E 358.48 N 60 0 E 634.38 N 37 59 E 519.86 N 38 26 E 611.85 N 38 54 E 709.95 N 39 22 E 813.51 N 39 9 E 919.31 N 38 53 E 10'28.36 N 38 47 E 1141.00 N 38 40 E 1257.05 N 38 9 E 1375.98 N 37 39 E 1496.77 N 36 56 E 1612.23 N 36 29 E 1728.23 N 36 3 E 1842.03 N 35 38 E 1956.28 N 35 12 E 2064.14 N 34 37 E 2171.07 N 34 9 E 2274.89 N 33 45 E 2375.76 N 33 4~ E 2476.16 N 34 8 E 2571.19 N 36 63 E 2665.96 N 35 18 E 2759.47 N 35 32 E 2850.51 N 36 12 E 2939.66 N 37 3 E 3028.95 N 37 7 E 3131.02 N 37 26 E 3253.84 N 38 9 E 3390.10 N 60 0 E 3527.29 N 61 35 E 3668.34 N 41 30 E 3805.95 N 61 59 E 3937.16 N 62 18 E 4066.86 N 42 51 E 6195.37 N 43 9 E 4322.24 N 43 26 E 4447.69 N 63 51 E 4575.15 N 44 58 E 4705.20 3.53 3.25 1.69 1.30 1 ..16 0.19 0.64 O. 60 0.83 0 258.28 N 248.91 E 358.70 N 43 57 E 315.97 N 298.70 E 434.81 N 43 23 E 383.37 N 352.39 E 520072 N 42 35 E 456.31 N 409.86 E 613.36 N 41 56 E 533.65 N 471.50 E 712.11 N 41 28 E 614.40 N 537.68 E 816.31 N 41 11 E 696.90 N 606.87 E 922.79 N 60 57 E 782.29 N 673.99 E 1032.58 N 40 65 E 870.60 N 745.26 E 1166.02 N 40 34 E 961.96 N 818.35 E 1262.96 N 40 23 E 0.56 0.49 0.57 0.90 0.29 0.50 0.53 0 · 64 0.69 0.69 1055.96 N 892.89 E 1382.85 N 60 13 E 1150.56 N 966.63 E 1502.71 N 40 2 E 1245.06 N 1038.63 E 1621.39 N 39 50 E 1339.32 . 1108.83 E 1738.76 N 39 37 E .1432.37 N 1177.16 E 1854.01 N 39 25 E 1524.76 N 1243.93 E 1967.81 N 39 12 E 1615.81 . 1308.70 E 2079.31 N 39 0 E 1705.14 . 1371.04 E 2187.98 N 3B ,8 E 1792.63 N 1430.84 E 2293.65 N 38 36 E 1878.20 N 1488.41 E 2396.45 N 38 24 E 0.32 0.52 0.71 0.54 0.36 1.34 2.71 3.67 2.09 0.53 1961.92 N 1564.31 E 2496.80 N 38 12 E 2044.18 N 1599.72 E 2595.73 N 38 3 E 2124.11 N 1656.25 E 2692.28 N 37 55 E 2201.99 N 1709001 E 2787.38 N 37 49 E 2277.46 N 1762.66 E 2879.90 N 37 44 E 2350083 N 1815.71 E 2970.39 N 37 41 E 2423.45 N 1869.69 E 3060.86 N 37 39 E 2505.79 N 1932.04 E 3164.14 N 37 '38 E 2604.66 N 2007.27 E 3288.37 N 37 37 E 2713.57 N 2091048 E 3426004 N 37 37 E 1.40 1.15 lo04 0o51 0o16 0.53 0.31 0.31 1001 0.81 2821015 N 2178.29 E 3564.24 N 37 40 E 2928.37 N 2270.80 E 3705.65 N 37 68 E 3031065 # 2362035 E 3843'38 N 37 56 E 3129.93 N 2449.82 E 3974.69 N 38 3 E 3226026 N 2537.10 E 4104.34 N 38 11 E 3321.10 N 2624015 E 4232.71 N 38 19 E 3413.95 N 2710.84 E 4359.32 N 38 27 E 3505.28 N 2797.03 E 6484.45 N 38 35 E 3597080 N 2884087 E 4611.58 N 38 63 E 3690077 N 2975.87 E 4761.06 N 38 53 E 3oP. EXPLORATION E-26 (12-17-11-12) ~RUDHOE BAY ¼0RTH SLOPEs ALASKA COMPUTATTON DATE: 1.3-JUN-89 PAG'~~ DATE OF SURVEY: O~-JUN-89 .... ~ KELLY BUSHING ELEVATION: 89°4.7 FT ENGINEER: SARBER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE EASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG M1:N DEG VERTICAL DOGLEG R'ECTANGULAR COORDINATES H~RIZ. DEPARTURE SECTZON SEVERZTY NORTH/SDUTH EAST/NEST DIST° AZINUTH · FEET DEG/IO0 FEET FEET FEET DEG MZN ~111.4.7 7989.47 7900.00 4.9 37 0260.56 8089.47 8000.00 4.7 6 I}408.92 8189.47 8100.00 48 2 0556.88 8289.47 8200.00 46 18 0698.46 8389.47 8300.00 44 10 0836.80 8489.47 84,00.00 43 15 0973..09 8589o47 8500.00 42 46 111Z.90 8689.4.7 8600. O0 45 37 1.258.4.7 8789.47 8700.00 .48 9 14.16.90 8889.4.7 8800.00 53 31 N 4.7 49 E 4830.22 N 57 37 E 4939.59 N 57 4,.2 E 5046.81 N 64. 31 E 5152.4.3 N 76 4 E 5243.58 N 79 22 E 5324..4.8 N 81 57 E 54.00.51 N 83 9 E 54.78.64 N 82 51 E 5562.89 N 81 58 E 5661.69 1593o06 8989.4'7 8900.00 57 34 N 81 32 E 5779.25 1794..60 9089.47 9000.00 62 50 N 80 19 E 5922.47 1850.00 9114.77 9025.30 62 50 N 80 19 E 5963.15 7.56 1.79 0.50 5.98 5.10 1.4.9 2.25 1.87 3.50 2,.94 2.35 0.00 0.00 3778.25 N 3065.18 E 4865.24 N 39 3 E 3843.49 N 3154..26 E 4.972.10 N 39 22 E 3901.80 N 324.7.04. E 5076.1.5 N 39 4.6 E 3955.98 N 334.1.58 E 5178.4.1. N 4.0 ].1. E 3989.80 N 34.35.71 E 5265.23 N 40 44 E 4.009.51 N 3529.23 E 534.1.50 N 4.1 21 E 4.024..4.2 N 3620.61 E 54.13.39 N 41 59 E 4.036.64. N 3717.53 E 54.87.66 N aZ 39 E 4.04.9.28 N 3822.55 E 5568.53 N 43 2:1 E 'r+065.61 N 3944.25 E 5664.48 N 44. 8 E 4086.39 N 4087.75 E 5779.99 N 45 I E 4113.93 N 4.260.44 E 5922.48 N 46 0 E 4122.22 N 4309.02 E 5963.25 N 46 16 E SCHLUMBEROER O I REC T I ONAL SURVE Y COMPANY B.P. EXPLORATION WELL Z-26 FI ELD PRUOHOE BAY COUNTRY USA RUN ONE DATE LOOOED 04 - JUN - 89 REFERENCE 26 (12-17-11-12) ~'NL, 31 08' FEL, Sec-lO,Tlln,R12E IORTH 6000 REF ?3366 SCRLE = HORIZONTAL l/lO00 IN/FT PROJECTION 5OOO 4OOO 1000 SOUTH -2000 -2000 1000 2OOO 4000 ,~OOO 6000 ER6T (12-.~7- 1L12) L~ooo o o 226. 19,TllN,R12E 1000 2000 3000 4000 VERTICAL SO00 PROJECTION 6000 7000 46. q pR~)dECTION ON VERTICAl- PLi:::~4E 46. 226 · 6CPLEO IN VERTI'CAt.. DEPTH6 HORIZ SCALE = 1/1000 IN/FT < m -.I II 1. Type of Request: 13. Attachments ~:dK~ OIL AND OAS OON~RVATION OOM N APPLICATION FOR SUNDRY APPROVALS Abandon ~ Suspend Alter casing Repair well Change al)proved program 2. 'Name of Operator ........ BP Exploration 3. Address Operation Shutdown ~ Plugging Pull tubing ,,X ,, Variance .... ' ! 5: Type of Welll ' Development X Exploratory ,, , Straflgraphic , Service Re-anter suapancled well Time exten~ion Stimulate, Perforate ,, Other .... "' ~ 6. Datum elevation (DF or KB) ] 89.47 feet '7. Unit or Property name ' I 8, Wel! number ~_~ (12-17-11-12) ~ermit number ~ 0. APl number 50- 029-21~4~ 11850' feet Plugs (measured) 9115 feet BKB P. O. Box 196612, Anchorage, Alaska 99519-6612 '4. Location of Well at surface 721' SNL, 3108, WEL, SEC. 19, T11N, R12E At top of productive interval 1953' SNL, 4586' WEL, SEC. 17, T11N, R12E At effective depth 1886'SNL, 4100' WEL, SEC. 17, T11N, R12E At total depth 1878'SNL, 4078'WEL, SEC. 17, T11N, R12E 12, Pre~ent well condition su~mary ' ' Total depth: measured true vertical 11808 feet Junk (measured) 9096 feet BKB Effective depth: measured true vertical Length Size Cemented 80' 20" 8 cu yds 2592 13-3/8 3684 cu ft. 10956 9-5/8 2365 cu ft. 1111' 7" 368cuft measured 11630~11670' true vertical subsea 8917'-8938' Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: Tubing (size, grade, and measured depth) 3-1/2", 9.2 L-80 to 10798' Packers and SSSV (type and measured depth) 9 5/8" TIW~10691, SSSV~ 2092 Measured depth Trueve~icaldepth BKB 110 110 2622 2622' 1O986 8599' 10739-11850 8419'-9096' DeScriptiOn summary of proposal x LIUL 1 1990 Alaska Oil & Gas Cons, Commission Anc~0ra~e Detailed operations program .... BOp sketoh x 14. Estimated date for commencing operation 115. Status of well classification as: July, 1990 I i6. ff ProPOSal Was verballY aPprOved I Oil. X. Gas Suspended I Name of aPprover Date approved Service , 17. I hereby certify that the_foregoing is true ~ correct to t,l,l,13e best of my knowledge. Signed (~~~~Tit!e Completion Engineering Supervisor . ~ ~ , , FOR COMMISSION USE ONLY :~ditiOn~ of apprOval: Notity CommiSSion so rePreSentative may Witness ' ' ' Location clearance Subsequent form required 10. ORIGINAL SIGNED BY:- · ,.,..,.c ~ RMITH! Commissioner I ApProV.,"o: I SUBMIT I!;I TRIPLICATE Approved Copy j=leturrted Plug integrity__ BOP Test Mechanical Integrity Test A~ved,by order of the commission Form 10-403 Rev 06/15/88 . 2. 3. 4. 5. 6. 7. 8. 1 10. 11. 12. 13. 1'4. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Attachment I Well Z-25 Workover Outline Procedure: MIRU workover rig. Pull BPV. Circulate diesel from well. Install two-way check valve. ND tree. NU and test BOP's to 5000 psi. Pull 3-1/2" tubing string. Test the 9-5/8" packoff and replace if necessary. RIH with mill and PRT and recover the 9-5/8" Packer and tailpipe assembly. RIH with 7" Test Packer to test 9-5/8" casing and 7" liner lap. Shoot squeeze perforations in channel. Set cement retainer on drill pipe immediately above squeeze perforations. Cement squeeze with 75 sacks Class G cement. Drill out cement to top of retainer and test. Re-squeeze if necessary. RIH with 9-5/8" casing scraper to 7" liner top. Reverse circulate hole clean. RIH with 7" casing scraper to PBTD. Reverse circulate hole clean and change over to. filtered inhibited bdne. RIH with drill pipe-conveyed perforating assembly, log into position with GR/CCL. Perforate and flow well to surface. Kill well. RIH w/Halliburton "PIP" Packer. Acidize perfs with 2800 gal HCL. Flowback. Run 8.5" gauge ring/junk basket to 7" liner top. Run 6.0" gauge ring/junk basket to PBTD. RU E-line, set 7" isolation packer with 3-1/2" tailpipe assembly. Run existing 3-1/2" tubing and wellhead equipment. Set and test the 9-5/8" packer. Set two-way check valve. ND BOP's. NU and test tree to 5000 psi. Pull two-way check valve. Shear valve in the GLM and displace annulus to 140 bbls diesel. U-tube diesel to the tubing. Set BPV. Release dg. SNV~ ON Il§ 31V9 3.1.V9 'IVllNVI,,I DI'InV~OAH ]OOdS; ,,,] 31V9 3 I-INV~IOAH 31V9 ]¥f/NVl,,I 3NI9 3HOHD 9NI]]I~IO 3NIl ]]1>t ,,~ S;NV~ 3d Id c3NVW 3d Id I , I I ,,,,,,i W31N3A3Wd WV-lrlNNV / ,\ tL.,-TA NDVlS NVW 39d I WI d~ lsd O00C; ',,g/c; £[ II ZN3NHDYZIV NOIJ. Vtlngl-lNOD >I:3V_LS dO§ BP EXPLORATION BP Exploration (Alaska) Inc. gOO East Benaon Boulevard P.O. Box 196612 Anchorage, Alaska 9951'9-6612 (907) 561-5111 TO HOUSTON ARCO CHEVRON EXXON MOBIL' PHILLIPS GEOSCIENCES R ES ERVO IR ARCHIVES Date: 06/15/89 T%: 80126 BP CASED HOLE FINAL LOGS The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office: A-29 Collar 06/09/89 %1 10170-10994 Atlas 5" F-03 Collar 06/09/89 %1 10322-11173 Sch 5" G-02 TDT-P 06/08/89 %1 9500-10227 Sch 5" G-25 Perf-R 06/09/89 %1 9400-10485 Sch 5" ~-R-18, CET 06/08/89 %3 9270-10097 Sch 5" .R-18 CBT 06/08/89 %3 9270-10093 Sch 5" ' CET 06/04/89 %1 10600-11804 Sch 5" Perf-R 06/04/89 %1 10600-11804 Sch 5" ~26 CBT 06/04/89 %1 10600-11783 Sch 5" Received: Date: Information Control Well Records LR2-1 J. Dietz/S. McCurry BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519.6612 (907) 561.5111 TO: HOUSTON ARCO · CHEVRON EXXON MOBIL PHILLIPS STATE OF ALASKA GEOSCIENCES DATE: 06/05/89 T%: 80111 ARCHIVES , BP OPEN HOLE FINAL LOGS The following material ie being submitted herewithl Please acknowledge receipt by siging a copy of this letter and refuting it to this office: -HOU/UNIT/STA~TE¥ ................. ~Ai.6 DIFL/GR 05/31/89 %1 10980-11803 Atlas 2"/5" BHC/GR 05/31/89 %1 10980-11774 Atlas 2"/5" ~i!~ CNL/GR Raw-Poro 05/3!2/89 ~1 7650-11744 Atlas 5" STATE ONLY: Magnetic Single Shot Directional Survey Gyroscopic Directional Survey Received: Date: DIRECTIONAL SURVEYS Date: Job%: Date: Job#: BP EXPLORATION BP Exploration (Alaska) Inc. g00 East Beneon Boulevard P.O. Box 196612 Anchorage, Alaeka 99519-6612 (907) 561-5111 To ~CO EXXON PHILLIPS ~AL'ASKA,~ SYSTEM Tape & Transmittal Only ARCHIVES Date: 06/08/89 T#: 80116 BP MAGNETIC LIS TAPE & LISTING The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office: ,.~~.:.~ OH/DIFL BHC /CNL 05/31/89 %- 7625-11057 TP% 06502 Atalas ECC93848 1600bpi API950-029-21945 K-03 CH/CNL-D 3 pass 2,5" 05/27/89 #1 8885-9491 TP# 06503 Sch~73349 1600bpi API~50-029-21011 ARCHVIES ONLY: K-Q3 CH CNL field tape 05/27/89 %1 Tape Pos%06504 Sch973349 800bpi API%50-029-21011 Received: Date: BP EXPLORATION HOUSTON ARCO CHEVR0~ EXXON TEXACO 'TO: ' MOBIL I NOE×ED BP Exploration (Alaska) Inc. 900 ~ Bonson Boulevard P.O. Box 196612 Anchorage. Alaska 99519.6812 (907) 561-5111 Date: 07-11-89 il,, , ,11 80158 PHILLIPS , , STA~ OF ~KA REFERENCE: BP.,. F~N'AL DATA - Pt~ESSU,I?.E ST. TRVE~,.' DATA The following material Is being submit'fed herewith. Please acknowledge recelp~ by signing a copy of this .leal'er and retUrning Iq to thls office: A-3i A-10 A-10 A-10 A-14 A-24 A-34 B-13 B-24 B'29 C-19 G-30 W-17 X-03 Z-15 ,Z- 2 6 ~ Z~26 Static Gradient 07-01-89 Ca~aco Static Gradient 06-17-89 Camco Static Gradient 06-19-8,9 Camco Static Gradient 06-24-89 Camco Static Gradient 06-17-89 Camco Static Gradient 06-25-89 ' Cazaco Static Gradient 06-18-,8'9 Camco Static Gradient O6-20-&9 Camco Static Gradient. 06-20-89 Camco Static Gradient 06-20-89 ~:amco Static Gradient 06-22-89' Camco Static Gradient 06-10-89 Camco Static Gradient 06-28.-89 Camco Static Gradient 06-25-89 Camco Static Gradient ' 07-01-89 Camco S ratio Gradient 07-04-89 Camco Static Gradient 07-04/05-89 Camco Race [ ved Date Shirley R. McCurry INFORHATi ON CONTROL. Wei I Records LR2-1 M 0 RA.N Db M Stateuf Alaska ALASKA OIL ~ GAS CONSBRVATIO~q OOM~I88IOR ~-~ $-s t one~ FILE NO: D · B~. 0 6 T THRU: FROM: TELEPHONE NO: Mi ehae I T, Minder-'~g~.~', SUBJECT: BOP Test Sr. Petrotet~ Engineer BP ~ PBU Z-26 l'rudhoe Bu~ ~ ~d~¥_,.._..~Y 15, 198-9, The test began at 10..90 am and was completed a't-3:;30 ~';'-'-~'AS"-"t~-'~at-taehed BOP test report shows'there were 5 failures. All items that failed were repair and tested wi th the exception of the 2 values/, down strem of the 'manual chokes. These will be repaired and the ~ office nc. tilted within 2 days. (~uot In sunmary, I witnessed the BOP test~on BP's Z-~6, Attachment Comment: Wayne Fisher called on 5117189 and said replacement parts were not sent to rig but would be delivered tomorrow - installed and tested by 2:09 pm. Tomorrow - gave verbal to continue operations with instruction to call when repairs and testing was e.ompleted - Per Johnnie Thompson 5/18/89 valves repaired and tested ok. M,T.M. 02-001A [Rev. 8/85): , STATE OF ALASKA ' ~' ALASKA OIL & GAS CONSERVATION COI~ISSION ,. B.O.P,E. Inspection Report ? _ Representative ~, ~' .... .'" _ Drillin~ Contractor Ceneral llousekeepin~ ~ Ri~,~ : Full Charge Fressur,~~ __ psi~.... , Reserve Pit ~ ~ressure ~fter 'Closure_,/~D~ __ psis Hud Systems Visual Audio Pump incr. clos. pies. 200 psis. -- _mina,,sec. T~ip Tank / Ful1 Charge Pressure. t~ained~_ ~ rain/~ sec. psis_ ~lo~ ~oni~or ~ Conc~ols~ ,~as~a~~ ~ .... ~as ~etecco~s ~o~ ~g_,Bli~ds,P~i~c,h. ~ov~r .... ~ .,. ~11y,..and ~loor, S~!e~l Valve~ . . : LO~ KellY- I. ~ressure ........ . . ,.~.~. v,i,, · ,~~ ~ _ ~o. v,i,,' 1/.' ..... ' _ ...... - ...... -'' ', _- - _ . '" [lydr~,uicall~ operated ,choke,/ _, _ Test Resultss Failures ~ Test T~e h=s. · , Repair or Replacement of failed equipment to be made ~ithin ~' day~ and Inspec~or/ ?elecopy t (007)276-7542 ~closed ~s the-approved app-ltoat~on for permic to drill che above re:£ex-,~e~ ~lt. The permit to d~$1I ~ no~ exempt you ~r~ obCatnf~ additional ~e~$Cs required by ~v ~ o~er S~e~:~al ~a~ea, and ~es nsc ~c~$se'e~ce~ ~11~ o~C~o ~1 all ocher requlred pe~~ ~e~na~8 ~e Mde. To aid us In sche~-!~ £teld york, please noti£y chis o£~ce 24 hours prior to ~uC~,~g ins_c~llacton o~ C~ btovm~t prevention equ~~~ so_C~ a '~eaen~~ o~ the ~.s.ot~ mY be prea~c ~o w~cnees ces:~ of' ~he aqua,nc bef°re 'the out,ace cao~ shoe ~s .drilled. ~'~ere a d~reer aya.C~ ~$ required. p,!e~8~ alas noC~.y. ~h~8 ~ice 2~ h~ra pr'~br co c~ei~ " equi~nc-inscalh~!~' so ~C Che ~ia:at~ ay vitneo~ teoCin~ be~e dFill~ be~ che ~e o~ the ~du~cor pipe. Alaska. Oil ~d Oas ~onservac-ion Comniseion 'oF c ssz ~nclosu-re ~e, ~.~ar~c' o£ FiSh & 0~, ~itac Seccton v/o enol. · ~percmen:~ 0£ ~vlrOnmenCal COnse~aCion V/o' enel. BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 April 28, 1989 Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, Alaska 99501 Attn: Mr. C. V. Chatterton Well Z-26 (12-17-11-12) PBU Enclosed, in triplicate, is form 10-401, our Application for Permit to drill the above-named well. Also included are the attachments noted on the permit form and our check in the amount of $100.00 to cover the permit filing fee. Yours very truly, 1. O. StaO~ PBU Drilling Engineering Supervisor TOS/KTH cc' Shawn Babbitt Well File .RECEIVED MAY- ~.~ Gas .Cons, Cemmissi0rl PERMIT TO DRILL 20 AAC 25.005 la. Type of work Drill [] Redrilll-Illb. Type of well ExPloratoryl-I Stratigraphic Testl-I Development OilE] Re-Entry. [] Deepen !-iI Service [] Development Gas [] Single Zone [] Multiple Zone [] . 2. Name of Operator 5. Datum Eievation (DF or KB) 10. Field and Pool BP Exoloration KBE - 92 feet Prudhoe Bay Field/Prudhoe 3. Address IS. Property Designation Bay Pool p.. o_ Rex 196612_ Anchorac/~_ Alaska gg519-6612 ADL 2R262 4. Location of well at surface 7. Unit or property Name 11. Type Bond(.ee 20 AAC 721' SNL, 3108' WEL, SEC. 19, T11N, R12E Prudhoe Bay Unit At top of productive interval 8. Well number Number 2018' SNL, 4210' WEL, SEC. 17, T11N, R12E Z-26 (12.17.11.12) PBU 2S100502630-277 At total depth 9. Approximate spud 'date Amount 1863' SNL, 4047' WEL, SEC. 17, T11N, R12E May 10, 1989 $200,000.00 12. Distance to nearest 13. Distance to nearest well' 14. Number of acres in propert:~ 15. Proposed depth (MD and mVD) property line ADL28263 4627 feet Z-25 35 feet 2560 11705' MD / 9183' TVDfeet 16. To be c~mpleted for deviated wells 17..Anticipated pressure (.ee 2o AAC 26.036 (e)(2)) Kickoff depth 2700 feet Maximum.. . hole angle 47,~;~ Maximum surface , 3330 pl~ At total depth (TV•) i~D~gO. pslg 18. Casing program Specifications Settin~ Depth size ToP Bottom Quantity of cement ..... Length M D TVD .MD TVD (include stage data) Hole casing Weight Grade Coupling' " 80' Surface 110' 110' 20" Cond. . 17.-1/2" 13-3/.8"' 68# L-80 Bu~t. Sudace 2652' 2652' 3684 cu ft Perm, afrost .12-1/4" 9-5/8" 47# NT8.0.S NSCC Surface 10864' 8616' ~'36~. cu ft Cla~s G 8-1/2" 7" 26# L-80 . IJ4S 10614' 8447' 11705' 9183' 308 ¢u ft (~lass 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 Measured depth True Vertical depth Structural Conductor Surface IntermediateMAY - :t98 Production Liner ~aSJ~ J3Jl & Gas Cons. Perforation depth: measured true vertical "~'~'~}~.~ch0rage 20. Attachments Filing fee '171 Pr°perty'plat [] BOP Sketch [] Diverter Sketch [] Drilling program 171 Drilling fluid _pro, ram [] Time vs depth plot [] Refraction analysis [] Seabed report[] 20 AAC 25.050 requirements [] 21_: I hereby~tify that the fo~goi,~g i~ true and Co. rr, e_ct to the best of my knowledge ~ Signed ~'~[,~ ~ b- ~ ~ ~'~' ~ Title PBU Drilling Engineerin.q Supervisor Date r~ ~,, v -- L/ Comr~i~ion Use Only Permit Number IAPI number IApproval date See cover letter ~'c:~..:,~',=,~.,.. 150'O~--'~'' "?/~/Zz"~ I 0.5/03/89 Ior other requirements Conditibn~ of approval ' Samples req,uir_ecl [] Yes ~ Mud log requ~ed. DY_es Hydrogen sulfide measures [] Yes ~ No Directional. survey reqmrea ~ Yes Required working~,_~ ~~~/~ ssure for B ~,2,/~ ~/!; I~LSM; I-I10M; D' 5"M;,, Other: - by order of · Commissioner ~ne commission Date Approved by. _ Form 10-401 :ate AFE No. 120933 PROPOSED DRILLING AND COMPLETION PROGRAM WELL Z-26 [12-17-11-1]} PBU Install and cement 80' of 20" conductor to surface. .Install 20" diverter. The Drilling fluid program will consist of an 9.5 ~ 10.0 ppg spud mud in the 17- 1/2" hole, a 9.5 - 10.4 ppg water base mud in the 12-1/4" hole and a 9.4 ppg water base mud in the 8-1/2" hole. Drill 17-1/2" hole to 2672' and cement 13-3/8" L-80 Buttress casing to surface. Install blowout prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer. Maximum possible bottomhole pressure is 4390 psi at 8800' TVDss based on original reservoir pressure. Maximum possible surface pressure is 3330 psi based on a gas column to surface from 8600' TVDss and an oil column to 8800' TVDss. Directionally drill 12-1/4" hole to the 9-5/8" casing point at the Sag River Sandstone. Run 9-5/8" 47# NT80-S NSCC casing to within 10' of 12-1/4" TD and cement using Class O cement around the 9-5/8" shoe. The 13-3/8" x 9-5/8" annulus will be freeze protected with dry crude. Directionally-drill 8-1/2" hole to TD. Run 7" liner from TD to 250' inside 9-5/8" casing shoe and cement using Class G cement. Clean out to 7" float equipment. Change over to 9.4 ppg. filtered NaCL completion fluid. Test casing and lap to 3000 psi. Perforate well with wireline conveyed guns. Run 9-5/8" production packer on 3.5" tubing. Set packer 50' above top of liner. A subsurface safety valve with dual control lines will be placed below base of permafrost. Install and test Xmas tree. Displace tubing to diesel. Set and test packer. Tubing Size: 3-1/2", 9.2# L-80 EUE 8 Round A/B Mod IPC TBG with 6 GLM's. Tailpipe Size: 3-1/2" Tailpipe SDB: 4-26-89 RECEIVED MAY - 1 Alaska Dil .& Gas ConS. C Ion ' ~ ~chorage ' PROPOSED DOWNHOLE DIAORAM WELL Z-26 [12-17-11-12] PBU/EWE PROPOSED DEPTH BKB 20" Conductor 110 Ball Valve 2100 13-3/8" Casing Shoe 17-1/2" Open Hole 2652 2672 3-1/2" 9.2# L-80 EUE 8 Rd A/B MOD. Butt IPC Tubing with 6 GLM's 9-5/8" Packer 10564 7" Tieback Assembly 10614 9-5/8" Shoe 10864 12-1/4" Open Hole 10874 7" 26# L-80 IJ4S Liner 7" PBTD 11665 7" Liner Shoe 11705 8-1/2" Open Hole 11705 SDB: 4-25-89 B.O.P. STACK CONFIGURATION 13-S/8 IN. TRIPLE RAM STACK WP DRILLING 2 IN. KILL LiNE ii ' ANNULAR PREVENTER PIPE RAMS [ I_ j. BLIND RAMS ! i DRILLING SPOOL i I PIPE RAMS I I 4 IN. CHOKE LINE GATE GATE RE[EIVED MAY - :L ]~.~a Alaska Oil & Gas Cons. Cemmission ' ', ~ Rnchorage ~LOWLINE DRILLING RISER 20" 2000 PSI WI:' ANNULA~ PRECENTOR '!0" DIVEKTER DRILLING SPOOL GROUND LEVEL I I m .I 20" CONDUCTOR PIPE I I ' I DIVERTER SYSTEM DETAIL DRILL. DEPT. April 1982 _ i Il Il II NOTE: DIVERTER LINE HAS TWO DIRECTION DISCHARGE CAPABILITY AFTER LEAVING RIG SUB-BASES. SURFACE HOLEDIVERTER SYSTEM Two lines venting 90° apart in directions that insure safe down wind venting, and extending to a point at least 100' (feet) from any potential source of ignition. ~- ' 10 3/4" manual tu~-'__,_f_,~ valves NOTES 1. All pipe connections 150# ANSI Flanges or welded connections and secured to prevent movement. 2. Manual 10-3/4" ~ valves, mechanically connected to insure that one valve is fail- safe open at all times. 3. All turns are 90° (degrees) and targeted. ~ 10 3/4' 55~ Buttress 10.3/4" Hydraulic operated _-- _ ~ ~ valve 'x._ ~// ~ 20" Diverter Spool w/10 3/4" ~ Sjd-~ OJtJet. NORTH 1 WELL ~ Z- 26 , SURFACE LOCATION LAT. · 70° 17' 54. 226" LONG. · 149° I1' 37. 273" A.S.P. Y · 5, 959 , 359. 99 X · 599 , 564.04 ZONE 4 72~' FROM N. LINE SECT. 19 1844' FROM ~1. LINE SE:CT. ~9 T. I~ N. T. II N. T. II N. T. ION. 23 Z3- II 24 7 -12 19 0 ~K::A L E : I I SPINE PAD 28 353 I 2 ( ~ILES ) iTW. 'C' W.E.NW 34 ~ CERTIFICATE OF SURYEYOR: a~'~.~'"'"'~'"'~'~,~- ~ I = - '~."' ~ ',.~ ~. WELL N° Z - 26 AS-BUILT REGISTERED AND LICENSED TO PRACTICE ~fe .e ~e~..ee~ · .ee-~._ eeee~ -ee~.~//_' ~ PROTRACTED SECT. 19 , T II N ~- ~.- 12 [.,- ~ M ~ I-- ~ ~ SURVEYED FOR &ND THAT THiS PLAT REPRESENTS A ~j ~ ~ 5e-n~'~ ]omuJ~ch , F ~ AND OTHER DET& LS AR CORRECT ~R~ . ~_ _~ * ' DATE : NOV ZO,86 / ~ ~. ~%~ K U U K P I K ' __ ~ ~ NOV 20 8G DRAWN BY .' ' , ~'/ ' TECHNICAL SERV. INC, SURVEYOR DATE: SHEET I OF 2 PRUDHOE BAY OFFICE CHKD. BY . R.H. NW CORN. OF SECT. 19 NORTH LINE OF SECTION 19 J SUM P · · · · · · 1844' · · · · · SUMP · · · · · · · · · · SHEET 2 O~ 2 WELL PAD 'Z' II WELL NI Z-26 AS-BUILT -- -- lOCATED IN MC't Ill, T. I I., fi. ltL, I~ll. SURYEYED Iqll : KUUKPIK . . JlATE: IIOV. IIO, OS TECHNIC, AL SERV. INC. DRAWN PRUDflOE BAY OFFICE.I CHKD. BY: R.H. ....$45DUA124: [DRANO28]Z26_CLOSAP...SHORT. LIS~ ,5 2&-APR-1989 11:13 --- Closest Appeoach Analusis ~- Date: 2&-APR-89 Time: 11:13:23 5ea~ch Radius= 200 COURSE LINE Fo~ p~oposed well: Z-2& £12-17-11-12] Location = H-E S-N TVD(SBS) Top 599564.00 5959360.00 -92.00 Bo~om 603755.94 59634.79.52 8990.00 No~e: All depths in Fee~ Below Kellu Bushing (BKB). Closest Approach HE[J. IDENT /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART A029-2051100 CHEVTR 6887.9 3476.7 7461.9 3082. 2 A029-2184400 Z-14 100.0 0.0 100.0 0.4 A0~9-2184900 Z-15 1911.0 0.0 1910.8 134.8 'A029-2185900 Z-20 700.6 0.0 700.0 1.7 ,,:,! ~i~!~ o. o o. o o. o ~,!all~:~ , ~ O. 0 2400. 0 7. 7 SUHHARY The well which comes closest to the p~oposed mell is: A029-2190200 Z-25 Closest approach distance = KICK OFF Fo~ this fun = 35.0 Feet 2700.0 Feet CLOSEST DISTANCE 3044.6 260.8 233.3 343.8 Veetical Inteesection /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART Page I VERTICAL DISTANCE _$45DUA124: £DRANO28]Z2&_CLOSAP_SHORT7. LIS; 4 Search Radius= 200 7 DEGREE LEAD LINE Foe peoposed ~ell: Z-26 £12-17-11-12] Location = N-.E S-N TYD(SBS) Top 5995&4. O0 59593~:K). O0 -92.00 Bottom 603~'~2.65 5963959.68 8990.00 26-APR-1989 11:14 -~ Closest Approach Analusis --- Date: 26-~R-87 Time: 11:14:20 Note: All depths in Feet Belo~ Kellq Bushing (BKB) Closest Approach HELL IDENT /PROPOSE. DY /NEARBY\ TVD DEPART TVD DEPART A029-2051100 CHEVTR 6887. 9 3476. 7 7461.9 308~2. 2 A0~9-2184400 Z-14 100. 0 O. 0 100. 0 O. 4 A0~9-2184900 Z-15 1911.0 O. 0 1910.8 134. 8 A029-2185900 Z-20 700. 6 O. 0 700. 0 1. 7 A029-2190200 Z-25 O.& 0.0 0.0 O. 0 A029-2191700 Z-24 2400. 3 O. 0 2400. 0 7. 7 SUMMARY The mell mhich comes closest to the proposed mell is: A029-2190200 Z-~5 Closest approach distance= KICK OFF ~or this run = 3~.0 ~eet 2700.0 ~eet CLOS'EST DISTANCE 2645. 5 280.8 233. 3 343. 8 35.0 63. I Vertical Intersection /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART Page 1 VERTICAL DISTANCE MUD WEIGHT CALCULATIONS WELL Z-26 (12-17-11-12~ Mud Wt. (8-1/2" Hole): P Sag River: P Sadlerochit: P Top Sadlerochit: OB Sag River: OB Top Sadlerochit: Current GOC~. 9-5/8" Casing Pt. Top Sag River Top Sadlerochit 9.4 ppg. 4025 psi. 4041 psi. at 8800' TVDSS 4021 psi. 190 psi. 273 psi. 8872' TVDBKB 8616' TVDBKB 8623' TVDBKB 8792' TVDBKB Cement Calculations 13-3/8" CASING Measured Depth: Basis: Total Cement Vol: 9-5/8"CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: 7" LINER Measured Depth: Basis: Total Cement Vol: 2652' 2 X Annular volume 3684 (cuft) 3961 Sx Permafrost @ 0.93 Cu ft/Sk 10864' 90% Annular Volume to 13-3/8" + 50 cuft 2365 (cuft) 1445 (cuft) 765 Sx G+8% @ 1.89 Cu ft/Sk 920 (cu ft) 800 Sx Neat G @ 1.15 Cu ft/Sk 11705' 1.5 X Annular volume to 9-5/8" shoe + 150 cuft 310 (cuft) 263 Sx Neat G @ 1.18 Cu ft/Sk SDB: 4-26-89 IlUD T~ 4 $o 86L ,, 1- Brandt Dual Tandem Shale Shaker 1 - Demco 6-12" Cone Shale Desander 1- Demco 416H w/16 cones & (1) Demco 48H w/16 cones (Desilter) 1 -~Drilco Atmospheric Mud Degasser 1- 200 gpm Operating Capacity. Centrifuge 15 - Brandt MA5 Mud Mix Agitators 1- 150 bbl. Trip. Tank 1- P~cording drilling fluid pit level indicator with both visual and audio warning devices at driller' s console ~R~NDr ~r 1 - Drilling fluid flow s.__eps, or with readout at drill~.;s console CMECK LIST"FOR NEW WELL PERMITS ITEM APPROVE DATE (2) Loc (8) (9 thru 13] -- 10. (10 and 13) 12. 13. (4> casg (14 thru 22) (23 thru 28) Is the permit fee attached ... e........, e. ®. ®.....®...... e e.®...... ®. 2. Is well to be located in a defined pool ............................. 3. Is. we~] located proper distance from property line .................. 4. Is W~ilocated proper distance from other wells ................ ;... 5. Is suzfiCient undedicated acreage available in this pool ............ 6. Is well to be deviated and is wellbore plat included ................ 7. Is operator the only affected party ................................. 8. Can permit be approved before fifteen-day wait ...................... Does operator have a bond in force .................................. Is a conservation order needed ...................................... Is administrative approval needed ................................... Is the lease number appropriate ..................................... Does the well have a unique name and number ......................... Lease & Well No. YES NO ' ,, 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Is conductor string provided eeee..eeee..ee..e.eeeeeeeeeee..e.eeeeee. Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water ..................... Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement c all known productive horizons over ..................... Will all casing give adequate safety in collapse, tension and burst.. Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed. ' .....eeeeeeeeeeeeeeeeeeeeee. Is a diverter system required .... Are necessary diagr-ms amd descriptions of diverter and BOPE attached. ,, Does BOPE have sufficient pressure rating - Test to ~O~ psig .. Does the choke manifold comply w/API RP-53 (May 84) .................. Is the presence of H25 gas probable ................................. (6) Add: ~.~. S'-Z-S$ Geology: _ Engi.ne~A~ing wJ .cs Bm rev: 01/30/89 6.011 For 29. 30. 31. 32. exploratory and Stratigraphicwells: Are data presented on potential overpressure zones? ................. Are seismic analysis data presented on shallow gas zones ............ If an offshore loc., are survey results of seabed conditions presented Additional requirements ............................................. 'n~r~rAL' CEO. tmrT O~/OF~ .... POOL ..CLASS STATUS .AREA .~ NO. SHORE , Additional Remarks /