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Home My WebLink About200-095 Imag~roject.Well History File Cover ~e XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~_~'~- (:~ ~_ Well History File Identifier RESC~AN DIGITAL DATA' OVERSIZED (Scannable) [] Color items: I Diskettes, No.~ [] Maps: [] Grayscale items: [] Other, No/Type [] Other items scannable by large scanner [] Poor Quality Originals: OVERSIZED (Non-Scannable) [] Other: [3 Logs of various kinds NOTES: [] Other Project Proofing BY; BEVERLY P, OBIN (~~HERYL MARIA WINDY Scanning Preparation _~ x 30 = ~,/~.) BY: BEVERLY ROBIN VI.~NCEN'r~ SNERYL MARIA WINDY Production Scanning Stage 1 PAGE COUNT FROM SCANNED FILE: PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION: ,/~ YES NO BEVERLY ROBIN VINCENT SHERYL MARIA ~,,~ DATE: ReScanned ~ind~vid~e~ page [.~pec~al at~e~r~t~] ~ca~nh~g ct)ropier, ed) RESCANNEDBY: BEVERLY ROBIN VINCENT SHERYL MARIA WINDY DATE: I$1 General Notes or Comments about this file: Quality Checked 12/10/02Rev3NOTScanned,wpd • • bP BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519-6612 December 21, 2010 1 ED JAN U1 Mr. Tom Maunder , AAN' t) j ;Ail Alaska Oil and Gas Conservation Commission 333 West 7 Avenue � � n i b:'~ stun Anchorage, Alaska 99501 nctr- ij Subject: Corrosion Inhibitor Treatments of GPB DS 11 a00-07A Dear Mr. Maunder, 1 I s $ !°l. Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB DS 11 that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator 1 • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) DS -11 Date: 12/21/10 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na gal 11 -01A 1921120 50029206440100 NA Sealed NA NA 6/25/2010 11 -02 1811280 50029206490000 NA Sealed NA NA 6/25/2010 11 -03A 1911520 50029206660100 NA Sealed NA NA 6/25/2010 11 -04A 1940230 50029204800100 NA Sealed NA NA 6/25/2010 • 11 -05A 1961570 50029206700100 NA Sealed NA NA 6/25/2010 11 -06A 2042250 50029206740100 NA Sealed NA NA 6/25/2010 11 -07 1811770 50029206877000 NA Sealed NA NA 6/25/2010 11 -08 1842290 50029212450000 NA Sealed NA NA 6/27/2010 11 -09A 1961280 50029214020100 NA 25 NA 42.50 6/29/2010 11 -10 1851590 50029213940000 NA 5 NA 28.90 6/30/2010 11 -11 1851410 50029213820000 NA Sealed NA NA 6/27/2010 11 -12 1841950 50029212120000 NA Sealed NA NA 9/12/2010 11 -13A 1921100 50029212290100 NA Sealed NA NA 9/12/2010 11 -16 1860780 50029215817000 NA Sealed NA NA 6/27/2010 11 -17A 2020320 50029215980100 NA Sealed _ NA NA 6/27/2010 11 -18 1861120 50029216070000 NA Sealed NA NA 6/27/2010 11 -22A 1950870 50029220356000 NA 1 _ NA 9.35 7/1/2010 11 -23A 1940810 50029216100100 NA Sealed NA NA 7/1/2010 11 -24A 1932040 50029216230100 NA Sealed NA NA 6/26/2010 11 -25A 1990820 50029204880200 NA Sealed NA NA 6/26/2010 11 -26 1861340 50029216280000 NA 1.9 NA 5.10 6/28/2010 11 -27 1861480 50029216380000 NA 3.5 NA 11.90 6/28/2010 11 -28A 2000950 50029219580100 NA Sealed NA NA 6/28/2010 11 -29 1940250 50029224660000 NA 0.2 NA 1.70 6/28/2010 11 -31A 1961830 50029225090100 NA 1.4 NA 6.80 6/28/2010 11 -32 1941310 50029225120000 NA 6.7 NA 59.50 6/30/2010 11 -33 1940900 50029224900000 NA 0.5 NA 2.55 6/30/2010 11 -34 1941380 50029225160000 NA 0.5 NA 3.40 11/27/2009 11 -35 1940650 50029224760000 NA 0.6 NA 5.10 6/30/2010 11 -37 1961740 50029227160000 NA 4 NA 42.50 7/1/2010 11 -38A 1982160 50029227230100 NA 2.1 NA 22.10 6/28/2010 II Schh~nherger Alaska Data & Consulting Services 2525 Gambell Street, Suke 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job 8 Log Description NO.5580 Company: State of Alaska Alaska Oi16 Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 98501 Date BL Color CD 1-27/P-20 01-01C 11-28A 05-25C AVKP-00085 BB6M-00016 AVKP-00081 BCUE-00021 RST - RST RST MCNL 06/06/10 06/09/10 05/31/10 06/02/10 1 1 1 1 1 1 1 1 Y-01 B 14-07 MPS-37 15-27A YS-27APB1 BAUJ-00024 BBKA-00035 BCRC-00026 10AKA0067 10AKA0067 MCNL RST RST ' ~ OH MWD/LWD EDR - OH MWD/LWD EDR 05/25/10 06/06/10 06/21/10 05!14/10 05/08/10 1 1 1 2 2 1 1 1 1 1 PLEASE ACKN(1WI. Fnr:F arc FtoT wv crr_uru r_ wun ect„suwn ...,~ ............... ~... BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2.1 900 E. Benson Blvd. os/osno Alaska Data 8 Consulting Services 2525 Gambell Street, Sude 400 Anchorage, AK 99503.2838 aoa-o9s 4--a~A • ,, 11 u ` ~ ~ , ~~. ~M±;~s c aA 1 ~. _~.._ f°,~.:~I,3 a ~ 7~~1J STATE OF ALASKA f,fL J!J/é/6 ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: o Abandon o Alter Casing o Change Approved Program 2. Operator Name: BP Exploration (Alaska) Inc. ress: P.O. Box 196612, Anchorage, Alaska 7. KB Elevation (ft): 8. Property Designation: ADL 028321 11. Present well condition summary Total depth: measured Effective depth: true vertical measured true vertical Casing Structural Conductor Surface Intermediate Production Linér Length 113' 4327' 5272' Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): o Suspend 181 Repair Well 181 Pull Tubing 56.28' 12455 8904 12368 8836 6498' 1044' o Operation Shutdown o Plug Perforations o Perforate New Pool o Perforate o Stimulate o Waiver o Other o Re-Enter Suspended Well o Time Extension 4. Current Well Class: 181 Development 0 Exploratory o Stratigraphic 0 Service umber: 99519-6612 200-095 6. API Number: 50-029-21958-01-00 9. Well Name and Number: PBU 11·28A 10. Field / Pool(s): Prudhoe Bay Field / Prudhoe Bay Pool feet feet Plugs (measured) 11403 feet Junk (measured) None feet Size MD TVD Burst Collapse 20" 113' 113' 1490 470 13-3/8" 4327' 3506' 3450 1950 9-5/8" 5272' 4100' 6870 4760 7" 5096' - 11594' 3989' - 8278' 8160 7020 4-1/2" 11410'-12454' 8151' - 8903' 8430 7500 12288' - 12344' 8776' - 8818' Tubing Size (size, grade, and measured depth): Packers and SSSV (type and measured depth): 3-1/2", 9.2# & 3-1/2", 9.3# 7" x 4-1/2" Baker 'S-3' packer; 7" x 4-1/2" Baker 'S-3' packer 13Cr & L-80 11339' & 11341' - 11414' 11370' 11239' 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment description including volumes used and final pressure: RSDMS 8Ft. MAYO 8 2006 13. Prior to well operation: Subsequent to operation: 14. Attachments: Oil-Bbl Re resentative Dail Avera e Production or In·ection Data Gas-Mcf Water-Bbl Casin Pressure Tubin Pressure 15. Well Class after proposed work: o Exploratory 181 Development 0 Service 16. Well Status after proposed work: 181 Oil 0 Gas 0 WAG 0 GINJ 0 WINJ 0 WDSPL est 0 my nowledge. Sundry Number or N/A if C.O. Exempt N/A o Copies of Logs and Surveys run 181 Daily Report of Well Operations 181 Well Schematic Diagram Printed Name Terrie Hubble Title Technical Assistant Signature Form 10-404 Revised 04/2004 Prepared By Name/Number: Terrie Hubble, 564-4628 Submit Original Only Phone Date D5/03/~ 564-4628 Well: Field: API: Perm it: 11-28A Rig Workover Prudhoe Bay Unit 50-029-21958-01-00 200-095 Accept: Spud: Release: Rig: 03/30/06 N/A 04/15/06 Nabors 3S 03/20/06 SET 3.5" HALIBURTON FASDRILL PLUG AT 11403. PLUG HELD 3500 PSI CMIT FOR 0.5 HRS. PRE-RIG WORK 03/21/06 CUT THE 3.5" TUBING AT 11341'. 03/25/06 TII/O= 300/240/150. PRE RWO CIRC OUT. PUMPED 927 BBLS OF 1% KCL DOWN THE TUBING TAKING RETURNS UP THE IA AND DOWN THE FLOWLINE. PUMPED 156 BBLS OF DIESEL DOWN THE IA. U- TUBED TO FREEZE PROTECT TXIA. FREEZE PROTECTED THE FLOWLINE. BLED ALL PRESSURES BACK. ATTEMPTED TO MIT-OA, NOT ENOUGH RIG UP CLEARANCE FROM FLOOR FRAMING. FINAL WHP= 0/0/0. BP EXPLORATION Page 1 of 9 Operations Summary Repol't . Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description. of Operations 3/29/2006 13:00 - 19:00 6.00 MOB P PRE Pre-Rig move pad inspection with DSO and get Unit Work Permit signed. Exhange contact and Emergency information numbers. MIRU Camp, Shop, and Generator module. Spot new wellhead equipment behind well 11-28A. Peak trucks return to W-15 to bring rig carrier, pipe shed and pit modules. 19:00 - 00:00 5.00 MOB P PRE Move rig carrier, pipe shed and pit modules to 11-28A from W-15. 3/30/2006 00:00 - 04:00 4.00 MOB P PRE Rig on pad at 0400 hrs. 04:00 - 06:00 2.00 RIGU P PRE PJSM. Spot rig over well. Set rig mats and herculite pit liner. Pre-tour HSE meeting with day crew at 0530 hrs. Reviewed short scope for RWO and days plan forward. 06:00 - 13:00 7.00 RIGU P PRE Spot and hook up Pipe Shed, Pit Module, start up rig systems, and raise the Derrick. RU flowback tank. Continue to get rig operational. 13:00 - 16:00 3.00 RIGU P PRE Telescope the Derrick, continue hooking up and testing rig systems. Flowback tank rigged up and hardline pressure tested. 290 Bbls 120F seawater on location load pits. 16:00 - 18:00 2.00 RIGU P PRE Rig Accepted. RU to pull BPV. Install fuseaable cap on SSV and bleed hydraulic fluid from chamber until stem touchs cap. MU double valve on annulus and rig up kill line. PU lubricator. Pull BPV. LID lubricator. WHPS T IIA lOA = 0 I 0 I 0 psi. Rig up kill line to pump in sub in top of tree. 18:00 - 21:30 3.50 KILL P DECOMP Rig up and PIT lines to circulate out diesel freeze protect to blowdown tank. 21 :30 - 22:30 1.00 KILL P DECOMP PJSM. Reverse circulate 30 bbls. @ 3.0 BPM @ 390 psi down IA to clear tubing of diesel freeze protect. Swap circulating lines to circulate long way. 22:30 - 23:30 1.00 KILL P DECOMP Circulate 200 bbls. long way @ 4.0 BPM @ 410 psi to clear IA of diesel freeze protect. OAP = 80 psi. 23:30 - 00:00 0.50 KILL P DECOMP Rig down circulating lines and blow down same with air to ensure clear of fluid. Veco vac truck vaccing out blowdown tank to ensure empty. T/I/O - 010/80. 3/31/2006 00:00 - 02:00 2.00 WHSUR P DECOMP Set and test TWC to 1000 psi. 02:00 - 04:30 2.50 WHSUR P DECOMP N/D production tree. Screw in landing jt. XO to verify tubing hanger lift thread integrity prior to N/U BOPE. 04:30 - 06:00 1.50 BOPSUF P DECOMP N/U DSA and BOPE. Notify AOGCC up pending BOPE testing. Witness of testing waived by Chuck Scheve. 06:00 - 11 :00 5.00 BOPSUF P DECOMP Continue NU BOPE. Leak Incident - Motorman changing fuel filter on one of main rig engines in Carrier. He closed valve on fuel line to isolate filter, and removed it. With filter off, valve failed and leaked diesel on floor of Carrier, approx. 1 gal seeped through floor to Herculite liner below. Spill dikes quickly put in place, leak cleaned up and reported, LCIR entered in Traction. 11 :00 - 00:00 13.00 BOPSUF P DECOMP NU BOPE 4/1/2006 00:00 - 02:00 2.00 BOPSUF P DECOMP NU BOPE. 02:00 - 06:00 4.00 BOPSUF P DECOMP PJSM. PIT BOPE per AOGCC regulations. 250 Lo I 3500 Hi. State witness of test waived by Chuck Scheve. 06:00 - 08:00 2.00 BOPSUF P DECOMP Break out and lay down test joint, dart, subs etc. PUMU lubricator extension and DSM lubricator. Check Tbtg and IA pressures 0 I 0 psi. Pull TWC. LID lubricator and lubricator extensions. 08:00 - 10:30 2.50 PULL P DECOMP PJSM. PUMU landing joint with XO's to Tbg Hgr and head pin. Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page2of9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/112006 08:00 - 10:30 2.50 PULL P DECOMP Torque all connections. Screw landing joint into top of hanger and pull to surface. 66K PU weight with no overpull. Break out and lay down Tbg Hgr and landing joint. 10:30 - 17:30 7.00 PULL P DECOMP POH laying down 3 1/2" 9.3# L-80 tubing. Keeping hole full with 8.5#/gal seawater. 150 jts. OOH at 1730 hrs. 17:30 - 20:30 3.00 PULL P DECOMP 200 jts. OOH at 2030 hrs. 0 bbls. fluid losses. 20:30 - 00:00 3.50 PULL P DECOMP 280 jts. OOH. Continuous hole fill to pipe displacement. Numerous holes in tubing. Corrosion holes appear to be from inside out. Using rotary slips to increase surface area for slips to contact pipe and prevent pipe collapsing. 4/2/2006 00:00 - 01 :30 1.50 PULL P DECOMP 280 jts. OOH 01 :30 - 03:00 1.50 PULL N RREP DECOMP Pipe skate hydraulic problem. Repair same. Skate BOL @ 0300 hrs. 03:00 - 08:30 5.50 PULL P DECOMP Finish POH wlcompletion string. Recovered 358 Jts, 4 GLM's, 1 X nipple wI subs. C&C rig floor. Tbg joint with jet cut dimensions = 16.63' length I 4" OD of flare. PUMU FMC Wear Ring and RIH. 08:30 - 11 :30 3.00 CLEAN P DECOMP PJSM. PUMU Baker fishing BHA #1. 6" x 31/2" Dress off shoe wI extensions, Inner Dressing Mill, WP Boot Basket wI DO Mill, 2 ea Boot Baskets, 7" Csg Scraper, Bumper Sub, Oil Jars. RIH on 6 ea 4 3/4" DC. OAL - 232.01' 11:30-15:15 3.75 CLEAN P DECOMP RIH wI fishing BHA, picking up 3 1/2" DP. Stop running DP due to problems with hydraulics on Skate. 15:15-17:30 2.25 CLEAN N RREP DECOMP Repair Skate. 17:30 - 18:00 0.50 CLEAN N DECOMP Continue to RIH picking up 3 1/2" DP 18:00 - 20:00 2.00 CLEAN N RREP DECOMP Repair pipe skate. 20:00 - 00:00 4.00 CLEAN P DECOMP Resume RIH w/DP. Found jt. # 56 to be bent. replaced same in string and tally with jt. of same length. 4/3/2006 00:00 - 01 :00 1.00 CLEAN P DECOMP Entered 7" liner top at 5096' with 154th jt. DP. Noted slight bobble on weight indicator as mill shoe entered liner. No indication of entrance of scraper into liner top. Continue RIH w/DP. 01 :00 - 02:15 1.25 CLEAN P DECOMP RIH w/DP picking, up singles. 02:15 - 02:45 0.50 CLEAN N RREP DECOMP Repairing broken jerkline on rotary make-up tongs. 02:45 - 10:00 7.25 CLEAN P DECOMP Resume RIH w/DP, picking up singles. 10:00 - 11 :00 1.00 CLEAN P DECOMP Tight spot in Csg at 10,446'; work scraper and clean up. Tight spot in Csg at 10,512'; work scraper and clean up. RIH picking up DP 11:00 -17:00 6.00 CLEAN P DECOMP 340 Joints of DP out of 351 total joints required in hole. PJSM to discuss procedures and safety issues pertaining to PUMU Kelly. PUMU Kelly. 17:00 - 17:15 0.25 CLEAN P DECOMP Tag top of tubing stub on jt. 351 @ 11332'. LID jt #351. P/U 10' DP pup. PUMU kelly. Wait on BFT serviceman to arrive. 17:15 - 18:15 1.00 CLEAN P DECOMP PJSM. Commence rotating @ 60 - 80 RPM I 7000-8000 ftIlbs torque, (free spin). Bring on pump to 3 1/2-4.0 bpm @ 570 psi. Pump 20 bbls. hi-vis sweep and switch to seawater. RIH wI kelly and tag top of stub at 11332'. Mill off top of stub wI 1000-2000# WOM. RIH wI kelly to 11345' w I maximum torque noted at 9000 ftIlbs. Pull mill up clear of top of stub and work back down over stub 3 times wlo rotating. 18:15 - 21:15 3.00 CLEAN P DECOMP Shut down pump and lay down kelly and 10' DP pup. PU 1 jt. DP. Prepare to reverse circulate hole clean. 21 :15 - 00:00 2.75 CLEAN P DECOMP Tag top of stub @ 11332'. Pick up 1 ft. off stub. Pump 10 Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page 3 of 9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/312006 21:15-00:00 2.75 CLEAN P DECOMP bbls. hi-vis sweep and switch to seawater. Reverse circulating pump rate = 4.0 bpm at 700 psi. Reciprocating DP every 15 minutes. 4/4/2006 00:00 - 01 :00 1.00 CLEAN P DECOMP Reverse circulating pump rate = 4.0 bpm at 700 psi. Reciprocating DP every 15 minutes. Pump pressure decreased to 500 psi after 20 bbl. sweep recovered to surface. Circulated 100 bbls. over surface to surface volume. Recovered small amount of mill cuttings on magnet in possum belly and minimal amount of scale and unidentifiable solid debris across shaker screen. 01 :00 - 03:00 2.00 WHSUR P DECOMP Rig down reverse circulating equipment. POH LID 6 jts. DP. POH w/1 std. DP. PJSM. PUMU HES RTTS packer wlstorm valve. Set packer -60 ft. below rotary table. PIT packer to 1000 psi. LID 2 jts. DP and packer retrieving head. 03:00 - 07:30 4.50 CLEAN P DECOMP Break down kelly and lay same down. Clear and clean rig floor and prep to re-Ievel Rig. 07:30 - 16:00 8.50 CLEAN N HMAN DECOMP Scope down and lower Derrick. Level Rig Carrier. Raise and scope up Derrick. 16:00 - 20:30 4.50 BOPSU¡:; P DECOMP NID BOP Stack and prepare to C/O 9-5/8" Packoffs and tubing head adapter. 20:30 - 00:00 3.50 WHSUR P DECOMP PJSM. Attempt C/O 9/5/8" casing packoff elements. Cameron service technician on location to direct work. Made attempt to pull tubing spool with 2 tuggers and nylon straps. Broke one nylon strap while pulling on adapter. Near Miss IR 1786699 generated in Traction to capture incident. Stopped job and discussed different rigup with cable slings attached to rig traveling blocks to allow measurement of tension pulled to remove adapter flange. Rigged up rated cable slings and shackles to lifting bails on traveling blocks and studs in tubing spool. Applied 18,000 Ibs. pull on tubing spool and worked cable sideways with tugger to get sideways movement. Tubing spool came free after 30 minutes of working pulled tension up and down. 4/5/2006 00:00 - 00:45 0.75 WHSUR P DECOMP Attempt to pull 9-5/8" packing. Casing packing retaining ring not made to be readily pulled. 9-5/8" casing packoff tested good to 3500 psi on 3/14/2006. Called workover engineer and discussed plan forward. Decision made to leave 9-5/8" casing packing in place and install new tubing spool along with tubing spool upper packoff ring. 00:45 - 08:30 7.75 WHSUR P DECOMP Replace upper tubing spool packoff and tubing spool with new equipment. Pressure test same. Test failed. Remove tubing spool and troubleshoot problem. Cannot remove Upper Packoff Assembly with Tugger Line. P/U 1-jt of DP and M/U to XO and to Packoff Running Tool. Check level of the Wellhead Spool and find that it is truly horizontal. M/U Packoff Running Tool to Upper Packoff assembly and use 6K to pull Packoff free. 08:30 - 11 :30 3.00 WHSUR P DECOMP Clean Upper Packoff Assy, remove seals and dry-fit Upper Packoff and new Spool. Everything OK. Pull off Spool, remove Upper Packoff, replace seals and BX-160 Ring, re-install Packoff and Spool and M/U studs wI Sweeney Wrench. 11 :30 - 12:30 1.00 WHSUR P DECOMP Test Upper Packoff to 3500 psi and hold for 15-minutes. Good test. PIT 9-5/8" casing packoff to 3500 psi for 15 minutes. Good test. Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page 4of9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/512006 12:30 - 00:00 11.50 BOPSUF P DECOMP PJSM. N/U BOPE. 24 hr. notice to AOGCC - John Crisp of impending weekly BOPE test sometime the evening of 4/6/06 or morning of 4/7/06. 4/6/2006 00:00 - 03:00 3.00 BOPSU¡:; P DECOMP Body PIT BOPE and chart same to 250 psi LO/3500 psi HI. Encountered several leaks during testing process. Repaired leaks and completed PIT. 03:00 - 05:00 2.00 CLEAN P DECOMP PJSM. P/U running tool and set wear ring. Wear ring I.D. = 9.25". PUMU HES RTTS packer retrieving tool and 2 jts. 3-1/2" DP with headpin in top jt. RIH w/DP and engage 9-5/8" RTTS packer and open storm valve. Monitor parameters. 0 psi on DP. Close annular preventer. Release packer and monitor annulus pressures. 0 psi on annulus. Open annular preventer. POH w/DP and packer. LID DP and packer. 05:00 - 07:30 2.50 CLEAN P DECOMP PJSM. Rig up floor with DP handling equipment. POH w/DP and BHA #1. LID DP 1x1. Crew changeout @ 0700; DP Jt #46 out of the hole. 07:30 - 08:00 0.50 CLEAN P DECOMP Changeout Pullback Line to Off-Driller side Rig Tong. New Lines on Order. 08:00 - 20:30 12.50 CLEAN P DECOMP Resume POOH and LID DP through Pipe Shed. Jt #60 @ 0820-hrs; #90 @ 0930-hrs; #200 @ 1415-hrs; #294 @ 1800-hrs; jt. 300 @ 1845-hrs; 342 jts. @ 2015-hrs.; 351 jts. @ 2030-hrs. 20:30 - 22:30 2.00 CLEAN P DECOMP POH LID drill collars and milling BHA. Crew changeout at 2200-hrs. Pre-tour HSE meeting wlnight crew. 22:30 - 23:30 1.00 CLEAN P DECOMP C&C rig floor. 23:30 - 00:00 0.50 RUNCO! If' RUNCMP Rig up floor and derrick to run completion. 4/7/2006 00:00 - 07:45 7.75 RUNCO! If' RUNCMP PJSM. PU and hang stabbing board in Derrick. Rig up compensator to traveling block. Hang and test double stack tubing tongs and set up for torque turn thread connections. Load Pipe Shed with remaining joints of tubing and downhole jewelry. Baker Completions making final checks of jewelry and Nabors Casing making final checks of Torque-Turn equipment. 07:45 - 08:45 1.00 RUNCO! If' RUNCMP PJSM to RIH with new 3-1/2",9.2#, 13Cr80, Vam-Top completion. 08:45 - 13:15 4.50 RUNCor If' RUNCMP P/U Mule Shoe assembly, RIH and M/U to XN-nipple assy. Use Baker-Lok on all connections from bottom of Baker S-3, 7" x 4-1/2" Packer to the Mule Shoe assembly. Apply 2,900 Ib-ft Optimum Torque and Jet-Lube Seal-Guard Pipe Dope to all connections. Packer in hole @ 0930-hours. Joint #55 in hole @ 1315-hrs. 13:15 - 14:00 0.75 RUNCor If' RUNCMP Daylight Tour Crew hitch changeout; conduct Pre-tour Safety Meeting for the new Daylight Tour crew. 14:00 - 21 :30 7.50 RUNCO! If' RUNCMP Resume RIH wI new completion; joint #105 @ 1715-hrs.; jt. #125 @ 2130-hrs. 21 :30 - 22:00 0.50 RUNCO! If' RUNCMP Pre-tour HSE meeting with night crew. 22:00 - 00:00 2.00 RUNCO If' RUNCMP Continuing operations running completion string in hole picking up tubing 1x1 from pipe shed. Jt. #205 IH at OOOO-hrs. 4/8/2006 00:00 - 05:30 5.50 RUNCO If' RUNCMP Continue RIH wI 3-1/2" 9.3# 13Cr80 Vam Top tubing completion string. Jt. #260 IH @ 0400-hrs.; jt. #280 IH @ 0500-hrs. 05:30 - 06:00 0.50 RUNCO If' RUNCMP Scheduled crew changeout. Pre-tour HSE meeting with day crew. 06:00 - 09:30 3.50 RUNCO fP RUNCMP Continue RIH wI 3-1/2" 9.3# 13Cr80 Vam Top tubing Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page 50f 9 Operations. Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations . 4/8/2006 06:00 - 09:30 3.50 RUNCor fP RUNCMP completion string. Joint #300 IH @ 0700-hrs; #325 @ 0830-hrs. Saw a slight bobble when joint #329 was RIH. The packer depth in the completion string while #329 is being RIH corresponds with a tight spot @ -10,512' encountered when the cleanout BHA was RIH. When joint #340 was RIH the string stacked out and we stopped RIH with -10K taken. Decide to SID operations and confer with Baker completions and BP RWO Engineer. 09:30 - 11 :00 1.50 RUNCO! VN RUNCMP Confer with Baker and BP RWO engineer. Decide to P/U to find neutral position and move pipe uphole wI 58K. B/O and LID joint #340, RIU to Reverse Circulate for 2-Tubing Volumes, 188-Bbls. 11:00 - 13:00 2.00 RUNCor ~ RUNCMP Reverse Circulate two tubing volumes. Find -1-gallon of scale and sludge in the Possum Belly of the Shakers. 13:00 - 16:30 3.50 RUNCO! ~ RUNCMP R/U to POOH and LID 3-1/2", Vam-Top using Compensator and Single-Joint Elevators. Could not pull Jt #337 above the Rig floor while POH and pulled up to 140K. Packer Slips may be hanging up in a Casing joint. Confer with RWO Engineer. Decide to build Hi-Vis sweep and circulate around the long way followed by MI Safe-Lube "slick-pill". Slack off to 47K and string is free to RIH. Set slips with top of joint in good position for stabbing Floor valve. 16:30 - 18:00 1.50 RUNCOr ~ RUNCMP Build 30-Bbls Hi-Vis sweep. Hold Pre-tour Safety Meeting for Night Crew and prepare to circulate Sweep. 18:00 - 22:00 4.00 RUNCOr ~ RUNCMP Pump 30 bbl. Hi-Vis sweep surface to surface. None other than pipe dope recovered in sweep returns across shaker screen. Mix 30 bbl. slick pill w/20 gals. of MI Safe-Lube. Pump Hi-Vis sweep long way @ 3.0 BPM @ 270 psi. 21 :30 - 00:00 2.50 RUNCOr VN RUNCMP Pump 30 bbl. slick pill of MI Safe-Lube followed by 95 bbls. seawater @ 3.0 BPM @ 270 psi. to spot slick pill across packer. 4/9/2006 00:00 - 00:30 0.50 RUNCOr ~ RUNCMP Continue pumping MI Safe-Lube slick pill to spot across packer. 00:30 - 09:30 9.00 PULL N DECOMP POH LID 3-1/2" completion tubing. PU wt. = 87K#. Tight spot at 16' OOH on jt. #336. Pulled 25K# over P/U wt. and string came free. Continue POH with excess drag above P/U wt. Overpulling 5-25K# in tight spots from jt. #330 to jt. #325. Jt. #320 OOH at 0245-hrs. No drag above P/U wt. from jt. #325 to jt. #320 OOH. 36 jts. laid down @ 0400 hrs.; 50 jts. LID at 0500-hrs. 64 jts. LID @ 0600-hrs. 98 jts LID @ 0930-hrs. 09:30 - 10:00 0.50 PULL N DECOMP Call Nabors Casing for new Torque Turn Power Tong dies and replace same. 10:00 - 00:00 14.00 PULL N DECOMP Continue POH LID 3-1/2" completion tubing. 129 jts LID @ 1100-hrs.196jts LID @ 1410-hrs.; 130jts remaining to be LID @ 1700-hrs.; 291 jts. laid down at 2130-hrs. 45 jts. remaining to be laid down. Called AOGCC at 2130-hrs. for notice of testing BOPE when completion string and jewelry laid down. John Crisp waived witnessing of test. 4/10/2006 00:00 - 00:30 0.50 PULL N DECOMP POH LID 7" Baker S-3 packer and jewelry below packer. Broke all Baker-Lok'd connections with hydraulic tongs. Packer has several small gouges approx. 1/16" to 1/8" deep in lower cone and gauge ring. Overshot muleshoe has two gouges side by side approx. 1/4" wide by 1/4" deep by 3" long Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page 6 of9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/10/2006 00:00 - 00:30 0.50 PULL N DECOMP on top of shoulder of muleshoe. 00:30 - 02:00 1.50 PULL N DECOMP Clear and clean rig floor and prep to pick up BHA #2 and 3-1/2" DP. Note: Fresh water leak occurred in rig carrier area. A "leak" LCIR 1793760 submitted and proper notifications made. 02:00 - 05:00 3.00 BOPSUF N DECOMP Prep to perform weekly BOPE test. 05:00 - 11 :30 6.50 BOPSUF N DECOMP Test BOPE per AOGCC and BP specs. 250 psi LO/3500 psi HI. 11:30 - 12:30 1.00 BOPSUF N DECOMP RID test lines and equipment and prepare to P/U and M/U BHA to cleanout tite spots found during completion run. Confer with RWO engineer and decide to use the Dress-off Mill on the bottom of the BHA to ensure that we can still get over tubing stub @ 11,332'. 12:30 - 16:00 3.50 CLEAN N DECOMP P/U M/U Mill-out I Dress-off BHA: 6"x3-1/2" Dress-off Mill Shoe; 2-ea Wash Pipe Extensions; Wash over Junk Sub; 6.049" Watermellon Mill; 2-ea Boot Baskets; Bumper Sub; Oil Jar; Pump-Out Sub; 6-ea Drill Collars. Install new Pull-Back Line for Make-Up Rig Tongs. 16:00 - 17:30 1.50 CLEAN N DECOMP Finish P/U drill collars. RIH Mill-out I Dress-off BHA on DP from Pipe Shed. Pre-tour HSE meeting with night crew. 17:30 - 00:00 6.50 CLEAN N DECOMP RIH w/BHA #2 and DP 1 x1 through pipe shed. Running a single row of DP, loading pipe shed with next row, strapping same, running DP and repeat. Can only load one row of DP in pipe shed at a time due to completion string left in pipe shed to protect it's integrity. 10 jts. DP RIH @ 1820-hrs.; 55 jts. DP RIH @ 2000-hrs.; 4/11/2006 00:00 - 06:00 6.00 CLEAN N DECOMP RIH wI BHA #2 on 3-1/2" DP 1x1 through pipe shed. Jt. #170 RIH @ 0100-hrs.; Jt. 262 RIH @ 0400-hrs; Jt. #300 @ 0600-hrs. 06:00 - 07:00 1.00 CLEAN N DECOMP Finish loading and tally the last layer of Drill Pipe in the Pipe Shed. 07:00 - 08:30 1.50 CLEAN N DECOMP Continue RIH, found first tight spot @ 10,414', 15' in on jt #322; took 7K running in and -8K out. Worked thru 6-times and weight differentials didn't change. Call RWO Engineer and decide to Kelly-up for rotary reaming thru the tight spot. 08:30 - 09:00 0.50 CLEAN N DECOMP PJSM to discuss all aspects of bringing Kelly on-board thru the Pipe Shed, Rigging Up Rat Hole, Kelly, and associated equipment. 09:00 - 14:00 5.00 CLEAN N DECOMP Clear and Clean Rig floor; bring Kelly Bushing to Rig Floor; M/U Swivel to Kelly; M/U Kelly to TIW and to DP. Change out Rig Tongs to torque up Kelly connections. H/U Circulating Line. 14:00 - 14:45 0.75 CLEAN N DECOMP Slowly lower Kelly and find the tight spot @ 10,414' and drop through it, P/U and establish circulation @ 2.5-BPM, begin rotating @ 45 to 50 RPM and slowly work down through tight spot, see torque build to 4,000 Ib-ft. Work on down for full Kelly and pick back up. Repeat the reciprocating cleanout 4-times. Stop rotating and SID pump and slowly lower down through the tight spots and see no weight fall-off or drag when POH. 14:45 - 15:30 0.75 CLEAN N DECOMP RIU to Reverse Circulate, then Reverse Circ one DP volume back to Shakers. Get back Pipe Dope Slime with fine metal shavings. 15:30 - 16:30 1.00 CLEAN N DECOMP Break-off Kelly and set back in Shuck. P/U Bails and DP Elevators. Printed: 4/17/2006 11 :05:13 AM · BP EXPLORATION Page? of9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/11/2006 16:30 - 17:00 0.50 CLEAN N DECOMP P/U joint #322 and RIH slowly; don't see any tight spots. P/U joint #323 and RIH slowly, find two tight spots while lowering full joint. Repeat 4-times, but tight spots remain @ -10,455' and 10,465'. 17:00 - 18:15 1.25 CLEAN N DECOMP LID joint #323 and RIU to P/U Kelly. Performed reciprocating cleanout from 10,450' to 10,484' while circulating at 2.5 BPM. Stop rotating and SID pump and slowly lower down through the tight spots and see no weight fall-off or drag when POH. 18:15 - 19:00 0.75 CLEAN N DECOMP RIU to Reverse Circulate, then Reverse Circ one DP volume back to Shakers. Got back Pipe Dope Slime. 19:00 - 20:00 1.00 CLEAN N DECOMP Break-off Kelly and set back in Shuck. P/U Bails and DP Elevators. 20:00 - 21 :00 1.00 CLEAN N DECOMP P/U joint #323 and RIH slowly; don't see any tight spots. P/U joint #324 and RIH slowly, don't see any tight spots. RIH with joint #325 find a tight spot while lowering full joint. Repeat 4-times, but tight spots remain @ -10,525'. 21 :00 - 22:30 1.50 CLEAN N DECOMP LID joint #324 and #325 and RIU to P/U Kelly. Performed reciprocating cleanout from -10,525' to -10,533' while circulating at 2.5 BPM. Stop rotating and SID pump and slowly lower down through the tight spots and see no weight fall-off or drag when POH. 22:30 - 23:00 0.50 CLEAN N DECOMP RIU to Reverse Circulate, then Reverse Circ one DP volume back to Shakers. Got back Pipe Dope Slime. 23:00 - 23:30 0.50 CLEAN N DECOMP Break-off Kelly and set back in Shuck. P/U Bails and DP Elevators. 23:30 - 00:00 0.50 CLEAN N DECOMP P/U joints #324 - #351 and RIH slowly to Tubing Stub. Don't see any more tight spots. Tagged Stub @ -11,335'. 4/12/2006 00:00 - 01 :00 1.00 CLEAN N DECOMP P/U joints #324 - #351 and RIH slowly to Tubing Stub. Don't see any more tight spots. Tagged Stub @ -11,335'. POH - 10' to 11,325' in order to perform circulation. 01 :00 - 02:00 1.00 CLEAN N DECOMP Reverse Circulated 100 Bbls down the IA and took returns up the Drill Pipe. 02:00 - 07:00 5.00 CLEAN N DECOMP Circulated 30 Bbls Hi-Vis sweep followed by 570 Bbls of Seawater down Drill Pipe and out the IA. Recovered about a gallon of Pipe Dope and scale slime, same as yesterday. Returning fluid eventually cleaned up to a light tea-colored fluid which will be changed out upon completion of the well. 07:00 - 14:30 7.50 CLEAN N DECOMP POH and LID DP through Pipe Shed. Joint #100 out @ 1030-hrs; 150 @ 1300-hrs; 202 @ 1430-hrs. Stop POOH 3-jts above the 7" Liner top to pressure test casing. 14:30 - 15:30 1.00 CLEAN N DECOMP R/U to test casing. 15:30 - 16:00 0.50 CLEAN N DECOMP Pressure test Casing to 3,500 psi and hold for 30-minutes. Rock solid test. 16:00 - 17:00 1.00 CLEAN N DECOMP P/U Kelly, M/U to string to use string weight to help break Kelly connections. Break off Kelly and set back in Shuck. 17:00 - 00:00 7.00 CLEAN N DECOMP Continue to POH and LID DP through Shed. Break out and lay down Baker fishing BHA #2. 4/13/2006 00:00 - 02:00 2.00 CLEAN N DECOMP Break out and lay down Baker fishing BHA #2. 02:00 - 05:00 3.00 CLEAN N DECOMP P/U Kelly out of Shuck and LID in Pipe Shed in order to clear Rig floor. Move Kelly outside to Pipe Rack. Clear Rig Floor of allXO's. 05:00 - 06:00 1.00 RUNCO ,f\ RUNCMP RIU Windwalls on Stabbing Board, RIU and test Torque Turn Equipment. Printed: 4/17/2006 11:05:13AM BP EXPLORATION Page 80f 9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 35 Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/13/2006 06:00 - 00:00 18.00 RUNcm fP RUNCMP RIH wI new 3-1/2", 9.2#, 13Cr-80, Vam Top Tubing. Clean and inspect all Vam-Top pins. Re-apply Jet-Lube Seal-Guard pipe dope and Torque Turn all Vam-Top connections to 2,900 Ib-ft; and the TCII connections below the Baker S3 Packer to 2,300 Ib-ft. Baker-Lok all connections below the Baker S-3 Packer. Vam-Top jt #46 @ 1350-hrs; #102 @ 1700-hrs; #150 @ 2000 hrs; #170 @ 2100 hrs; #220 @ 2330 hrs 4/14/2006 00:00 - 10:30 10.50 RUNCO! fP RUNCMP RIH wI new 3-1/2",9.2#, 13Cr-80, Vam Top Tubing. Clean and inspect all Vam-Top pins. Re-apply Jet-Lube Seal-Guard pipe dope and Torque Turn all Vam-Top connections to 2,900 Ib-ft; and the TCII connections below the Baker S3 Packer to 2,300 Ib-ft. Baker-Lok all connections below the Baker S-3 Packer. Vam-Top jt #230 @ 0000 hrs; #235 @ 0130 hrs; #246 @ 0300 hrs; #260 @ 0400 hrs; #335 @ 0930-hrs; #352 @ 1030. P/U wt = 83K, S/O wt = 60K. 10:30 - 11 :00 0.50 RUNCO! fP RUNCMP P/U joint #353 and RIH; then RIH wI #354 and tag top of 7" Liner @ 11331', which is 10' in on #354. Continue on in another 9' and watch weight drop off to 45K. P/U and RBIH again to verify. Allow weight to decrease to 45K. Make Space-out calculation; will need -15.10' of pup joints below joint #352 to space-out 2' above the stub, which equates to 7' of swallow. 11 :00 - 11 :30 0.50 RUNCOr ~ RUNCMP RIU to Reverse Circulate to verify top of stub. 11 :30 - 12:30 1.00 RUNCOI RUNCMP Close Hydril and break circulation; slowly lower completion and see pressure increase from 40 psi to 200 psi, again indicating the top of the 7" Liner @ 11,331'. Continue RIH to confirm Space-out. Will use two pup joints, 9.80' and 5.86' for 15.66', placed under the top full joint of 3-1/2" Vam-Top tubing. 12:30 - 13:15 0.75 RUNCOI tp RUNCMP Break-off and LID joints #354, #353, and #352. R/U for Reverse Circulation and blow air through Tiger Tank Line to verify open, checking for leaks. Note: at no time did we see any indication of the completion string dragging while RIH. This is a clean wellbore. 13:15 - 14:30 1.25 RUNCm fP RUNCMP P/U two pup joints (9.80' and 5.86') and Torque up to completion string. P/U full joint #352 and Torque up and RIH. P/U Hanger and M/U to string. M/U 3-1/2" IF box x 4-1/2 TCII pin XO to 3-1/2" IF Landing Joint and M/U to Hanger. Close Hydril and prepare to reverse circulate. 14:30 - 19:30 5.00 RUNCm fP RUNCMP Reverse Circulate 100-Bbls of 1200 F seawater followed by 2 x 240-Bbls of 1200 F seawater, each mixed with 61-gallons of Correxit EC1124A Corrosion Inhibitor. All circulation 3-BPM @ 230-psi. Taking all returns to Tiger Tank. 19:30 - 20:00 0.50 RUNCm ~ RUNCMP Land the Tubing Hanger and run in Lock Down Screws. 20:00 - 00:00 4.00 RUNCm RUNCMP Drop Ball and Rod and set Packer. Increase pressure to 3,500 psi on Tubing. Saw Packer set at - 2,300 psi. 30 minute PIT to 3,500 psi on Tubing Passed. Bleed Tubing pressure to 1,500 psi. Increase IA pressure to 3,500 psi. 30 minute PIT to 3,500 psi on IA Passed. Bleed Tubing pressure to 0 psi and shear DCR. Circulate to prove DCR sheared. 4/15/2006 00:00 - 00:30 0.50 RUNCO! fP RUNCMP Set TWC and PIT to 1,000 psi. 00:30 - 09:30 9.00 BOPSUF P RUNCMP NID BOPE. 09:30 - 11 :00 1.50 BOPSUF P RUNCMP N/U Adaptor Flange and Tree. 11:00 -12:00 1.00 BOPSUF P RUNCMP Fill Tree with Diesel, pressure test Tree and Adaptor Flange to 5,OOO-psi. Won't test. Leak is coming from the BX-160 ring. Printed: 4/17/2006 11 :05:13 AM BP EXPLORATION Page 9 of9 Operations Summary Repol't Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 6/29/1989 Event Name: WORKOVER Start: 3/24/2006 End: 4/15/2006 Contractor Name: NABORS ALASKA DRILLING I Rig Release: 4/15/2006 Rig Name: NABORS 3S Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 4/15/2006 11 :00 - 12:00 1.00 BOPSUF P RUNCMP Try re-torqueing all nuts on the Upper Flange of the Adaptor Spool. But still won't test. The leak is still coming from a small area in the BX-160 ring joint. 12:00 - 14:00 2.00 BOPSUF P RUNCMP Drain diesel out of Tree void. Nipple down Tree to inspect BX 160 Ring and flange grooves. Emory cloth the grooves and replace BX-160 Ring. Reinstall on Tubing Head. 14:00 - 15:00 1.00 BOPSUF P RUNCMP Fill Tree with diesel and test, but still lose pressure. Call DSM to bring another TWC. 15:00 - 16:00 1.00 BOPSUF P RUNCMP P/U and install Lubricator; remove and replace TWC. 16:00 - 17:00 1.00 BOPSUF P RUNCMP Top off Tree with diesel and pressure test. Slow leak off, 50-psi in 10-minutes. SII Manual Master Valve and test agin from the top and pressure holds rock steady. Release pressure, open Master Valve and pressure up to 5,1 OO-psi. Very slow bleed-off; bump up pressure to 5,1 OO-psi, three times. Pressure finally rock steady @ 5,1 OO-psi and recorded on chart. 17:00 - 19:45 2.75 WHSUR P RUNCMP Pull TWC with Lubricator. RIU Lil Red to Freeze Protect the well. FP with 150 Bbls of diesel. 19:45 - 20:00 0.25 WHSUR P RUNCMP Set BPV and test to 1000 psi. Secure Tree and Cellar. 20:00 - 00:00 4.00 RIGD P RUNCMP RDMO to 01-31. Rig release at 00:00 Printed: 4/17/2006 11:05:13AM 11-28 (PTD #2000950) Classified as Problem Well ) ) Subject: 11-28 (PTD #2000950) Classified as Problem Well From: "NSU, ADW Well Integrity Engineer" <NSUADWWellIntegrityEngineer@BP.com> Date: Tue, 28 Jun 2005 13:28:10 -0800 To:· "NSU, ADW Well Integrity Engineer" <NSUADWWellIntegrityEngineer@BP.com>, "Harris, Marvin L (CONOCO)" <harrml@BP.com>, "GPB, FS2/COTU Area Mgr" <GPBFS2TL@BP.com>, "GPB, FS2 DS Ops Leaœ' <GPBFS2DSOpsLead@BP.com>, IIRossberg, R Steven" <RossbeRS@BP.com>, "NSU, ADW Well Operations Supervisor" <NSUADWWellOperationsSupervisor@BP . coin>, . "GPB, Wells Opt Eng" ' <CJ.PBWellsOptEng@BP.com>, "AOGCC Jim.Regg(E-mail)..<jim_regg@admin.state.ak.us>. "AOGCCWintonAubert (E;..mail)" <winton _aubert@adtriin.state.ak.us>, "NSU, AÐW WL& Completion Supervisor" <NSUADWWL&CompletionSupervisor@BP.com>, "GPB, Ops Mgr" <GPBOpsMgr@BP.com> CC: "Holt, RyanP (VECO)" <Ryan.Holt@BP.com>, "Reeves, Donald F" <ReevesDf@BP.com> All, Well 11-28 (PTD #2000950) has sustained casing pressure on the IA and is classified as a Problem well. TIO's on 06/20/05 were 2200/2220NAC. The well failed a TIFL on 6/27/05. The plan forward for this well is as follows: 1. DHD: TIFL - FAILED 2. SL: Run DGL Vs in sta #1 and #2 3. DHD: Re-TIFL .1-01'( Attached is a wellbore schematic. Please call with any questions. «11-28A.pdf» Rob Mielke Well Integrity Engineer, BP Exploration, (Alaska) Inc. Office: 1-907-659-5525 Pager: 1-907-659-5100 #1923 robert.mielke@bp.com N'-~" 0 ')1 200~ SCAN· 1:.1..., .11 Ii t> I... ". , Content-Description: 11-28A.pdf 11-28A.pdf Content-Type: application/octet-stream Content-Encoding: base64 ~"E :> Silv...(. t NU'(P J ~-\- z. --¿ '2.0 pS' ì J 3 ¿~ 3 (ì~ 7:CP L-. 4'~~~ ÂA.kjp J' ol'- ~€f tô 4"', V- ÙÄ ~ ,'tQ.. 5Rt?fq 1l\q¡\ù'; 1 of 1 7/13/2005 10:09 AM PRUŒlOEBAY UNIT IJ'ÆLL: 11-28A ÆRMT f\b: 200-0950 API f\b: 50-029-21958-01 745' FSL & 291' FEL, Sec. 28, T11N, R15E BP Exploration (Alaska) REV BY COMVIENTS CH'KAK CORRECllONS REV BY COMWENTS ORIGINAL COMJLErION RiVO RIG SIŒTRA CK SIS-JH CONVffiTB:>TO CANVAS SIS-MO OC\ TE 10AJ2/89 05125/00 08126/00 10131/00 02/14/01 DATE 11/18/01 1 ÆllD l-i 12368' 1 9-5/8" CSG, 47#, L-80, 10 = 8.681" 1-1 11602' ~ ~ I 7"LNR,26#,L-80,ID=6.275"H 12470' ~ 1 4-1/2" LNR, 12.6#, L-80, .0152 bpf, 10 = 3.958" l--i 12454' 1 ! , \ z r z ÆRFORA TION SUI'v1\/1ARY REF LOG: SPERRY EWRIOOR 08/24/00 ANGLE AT TOP ÆRF: 42 @ 12288' Note: Refer to Production DB for historical perf data SIZE SPF INTffiVAL Opn/Sqz OC\lE 2-1/2" 6 12288 - 12302 0 09/30/00 2-1/2" 6 12320-12344 0 09/13/00 11370 1-1 7" X 4-1/2" BKR S-3 PKR, 10 = 3.875" 1 11395 l-i 3-1/2"HESXNNIP, 10=2.750" 1 11410 I-iTOPOF BKRTIEBACK SLV, 10= 5.25" 1 11417 1-i7" X4-1/2" BKRZXP A<R, 10= 4.375" 11424 1-17" X 5" BKR LNR HGR, D = 4.375" 11594 H 7" LNR, 29#, L-80, 10 = 6.184" 1 1 TOP OF CMT PLUG l-i 10600' 9-5/8" MILL OUT WINDOW 5272' - 5295' (OFF WI-IIPSTOCK) 1 3-/12" TBG, 9.3#, L-80, .0087 bpf, 10= 2.992" ~ GAS LIFT MANDRELS ST MO lVO DEV TV PE VLV LATCH PORT OC\ lE -.! 1 4706 3686 52 MM3-2 DOWE RK 16 08/29/00 2 7815 5689 47 MM3-2 SO RK 20 08/29/00 3 10026 7176 47 MM3-2 OV RK 0 08/26/00 4 11181 7936 49 MM3-2 OV RK 0 08/26/00 l J ~ ~ 5096 H 9-5/8" X 7" BKRZXP PKR,IO = 6.313" 1 5118 H 9-5/8" X 7" BKR HIVC HGR, 10 = 6.875" I Minimum ID = 2.750" @ 11395' 3-1/2" HES XN NIPPLE 13-318" CSG, 72#, L-80, 10 = 12.347" 1-1 4326' ---.J I 2218' 1-1 3-1/2" HES X NIP, 10 = 2.813" 1 11-28A J 4-1/16" OW OW AXELSÖN 63.0' .J\iA'. ŠOÒ" ~3..~ 5~?~', 12393' 8800' TREE = WELL H !;A 0 = "ACWÄ"TÖR;;;·... KB. B.E.V = SF. i3.. Bi ,;;..... KOP";· .~.~A.n.~ Ie.:: ......... Datum rill) = Datum lVO = SA FETY NOTES: 13-3/8" CSG SET ON BVlffiGENCY SLIPS. ) ) MICROFILMED 04/01/05 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE F:\LaserFiche\CvrPgs _ Inserts\Microfilm _ Marker.doc 04/8/03 Schlumberger Alaska Data & Consulting Services 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Beth NO. 2742 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Lisa Weepie 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay, Endicott, Milne Pt. Color Well Job # Log Description Date Blueline Prints CD ~1~.~. 9-32 /%~- 1 t ~ 23051 RST-SIGMA 01113103 E)~S':9~_-29 I.~ ~ - ~ I~ 23022 RST-SIGMA 1~45102 ~2-42A ~-I [~_~ 23018 MCNL 42129102 ~S. 11-28A.~ -~ 2302~ RST-SlGMA ~13/02 ~S. 15-~5B.~-~~ 23067 MCNL 01127103 ,, ....... PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: - Schlumberger GeoQuest 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Beth Received by: Permit to Drill 2000950 DATA SUBMITTAL COMPLIANCE REPORT 9~9~2002 Well Name/No. PRUDHOE BAY UNIT 11-28A Operator BP EXPLORATION (ALASKA) INC MD 12455 TVD 8904 Completion Dat 9/13/2000 Completion Statu 1-OIL Current Status 1-OIL APl No. 50-029-21958-01-00 UIC N REQUIRED INFORMATION Mud Log N_go Sample No Directional Survey No ED D DATA INFORMATION Types Electric or Other Logs Run: Well Log Information: Log/ Interval Data Digital Digital Log Log Run OH / Dataset Type Media Fmt Name Scale Media No Start Stop CH Received Number C~3mments Ver LIS Verification '-/'~ 1 5274 12414 Open 6~5/2002 10849 / 1 5274 12414 Open 5261 12455 OH 5261 12455 OH (data taken from Logs Portion of Master Well Data Maint) Rpt Ver LIS Verification~ 6/5/2002 R R SRVY RPT-MWD ~ 9/8/2000 R R SRVY RPT + IFR ~ 9~8/2000 SPERRY 5261.73-12455. SPERRY 5261.73-12455. Well Cores/Samples Information: Interval Dataset Name Start Stop Sent Received Number Comments ADDITIONAL INFORMATION Well Cored? Y / ~ Chips Received? ~ Analysis --Y-FN- R ~.r.~.iv~.d'~ Daily History Received? {~/N Formation Tops ~.~N Comments: Compliance Reviewed By: Date: WELL LOG TRANSMITTAL To: State of Alaska June 3, 2002 Alaska Oil and Gas Conservation Comm. Attn.: Lisa Weepie 333 West 7a Avenue, Suite 100 Anchorage, Alaska RE: MWD Formation Evaluation Logs 11-28A, AK-MM-00131 1 LDWG formatted Disc with verification listing. AP1//: 50-029-21958-01 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Jim Galvin 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petro-Technical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date: RECEIVED 1. Status of Well Classification of Service Well; [] Oil [] Gas [] Suspended [] Abandoned [] Service ,~ 2. Name of Operator 7. Permit Number BP Exploration (Alaska) Inc. 200-095 3. Address 8. APl Number r ............... P.O. Box 196612, Anchorage, Alaska 99519-6612 50- 029-21958-01 ] ;:.::..-:;,~: 4. Location of well at surface 9. Unit or Lease NameI --~. ~~ 744' NSL, 290' WEL, SEC. 28, T11 N, R15E, UM Prudhoe Bay Unit I ' ..... -;':~.- At top of productive interval [!=~'? 0 ~ "":'~" '.~bl _ 1066' NSL, 709' WEL, SEC. 20, T11N, R15E, UM 10. Well Number At total depth 1142' NSL, 848' WEE, SEC. 20, T11N, R15E, UMA~ ~, r~,a~. ,-,,,,, ,-,,, ,...~.._ ,, .as,,a.,. ~.,.as,.,,,,,s.,...,mm,~,~ 11-28A A,,,~,-,-,,~,- 11. Field and Pool 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation'~h'a'~e'~ No. Prudhoe Bay Field / Prudhoe Bay Pool KBE = 56.28' ADL 028321 12. Date Spudded8/10/2000 113' Date T'D' Reached 114' Date c°mp'' Susp'' °r Aband'8/22/2000 9/13/2000 115' Water depth' if °ffsh°reN/A MSL ] 16. No. of CompletiOnSone 17. Total Depth (MD+TVD) 118. Plug Back Depth (MD+TVD) 119. Directional Survey 1 20. Depth where SSSV set1 21. Thickness of Permafrost 12455 8904 FTI 12368 8836 FT] [] Yes [] No] (Nipple) 2218' MDI 1900' (Approx.) 22. Type Electdc or Other Logs Run MWD, GR, RES, MemoryGR, CCL 23. CASING, LINER AND CEMENTING RECORD CA~ING SETTING DEPTH HOLE SIZE WT. PER FT. GRADE TOP BOTTOM S~ZE CEMENTING RECORD AMOUNT PULLED 20" 91.5# H-40 Surface 113' 30" 2275 # Poleset 13-3/8" 68# K-55 / L-80 SuFace 4327' 17-1/2" 2500 sx AS III, 600 sx 'G', 150 sx AS II 9-5/8" 47# L-80 Surface 5272' 12-1/4" 500 sx SS II 7" 29# L-80 5096' 11594' 8-1/2" 395 sx Class 'G' 4-1/2" 12.6# L-80 11410' 12454' 6" 125 sx Class 'G' 124. Perforationsop. en to, Production (MD+TVD of Top and 25. TUBING RECORD Bottom and in[erva~, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) 2-1/2" Gun Diameter, 6 spf 3-1/2", 9.3#, L-80 11414' 11370' MD TVD MD TVD 12288' - 12302' 8776' - 8786' 12320' - 12344' 8800'- 8818' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Freeze Protect with 145 Bbls of Diesel 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) September 30, 2000 Flowing Date of Test 'Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE ~ GAS-OIL RATIO TEST PERIOD I Flow Tubing 3asing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (CORR) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. Form 10-407 Rev. 07-01-80 ORIGINAL Submit In Duplicate 29. Geologic Markers 30. Formation Tests Marker Name Measured True Vertical Include interval tested, pressure data, all fluids recovered Depth Depth and gravity, GOR, and time of each phase. Shublik 'A' 11616' 8293' Shublik 'B' 11655' 8319' Shublik 'C' 11670' RECEIVED Top of Sadlerochit 11701 8351' - .~. ~ !"~ Zone 4A 11795' 8417' A~aSka 0il & Gas Cons. C0rnmissi0~ Zone 3 11900' 8492'' "' "'~~'nch0r~e Zone 2C 11972' 8545' Zone 2B 12032' 8589' Zone 2A 12172' 8690' Zone 1B 12210' 8718' Zone lA 12301' 8785' Base of Sadlerochit 12348' 8821' 31. List of Attachments: Summary of Daily Drilling Reports, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed TerrieHubble ~"'~'"'~" ~.. Title TechnicalAssistant Date 11-28A 200-095 Prepared By Name/Numbec Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and Icg on all types of lands and leases in Alaska. ITEM 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 10-407 Rev. 07-01-80 BP AMOCO Page I of 5 Operations Summar Report Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 8/8/2000 Event Name: REENTER+COMPLETE Start: 8/7/2000 End: 8/26/2000 Contractor Name: NABORS Rig Release: 8/26/2000 Group: RIG Rig Name: NABORS 7ES Rig Number: 7ES iDate ::From,To HourS ActiVity code :PhaSe ~OescriptionofOperations 8/7/2000 00:00 - 04:00 4.00 CONS PERS PRE Laid plywood with rig on standby, Tool Service personnel unavailable due to two rig moves ongoing. 04:00 - 10:00 6.00 MOVE PRE Moved rig from DS 6 to DS 11. 10:00 - 23:30 13.50 RIGU PRE Lay mats and herculite. Spot sub, pits, cuttings tank. Finish berming. Raised derrick. Raise cattle chute, bridal down. Hook up top drive. Hang bridal lines. Bring equipment from rig maint to rig floor, XO's, elevators, slips, saver subs. 23:30 - 00:00 0.50 KILL PRE Held pre-spud safety meeting. Rig accepted at 23:30 hrs 08-07-00. 8/8/2000 00:00 - 00:30 0.50 WHSUR INT1 Install Blanking Flange On Tree 00:30 - 01:30 1.00 WHSUR INT1 PJU Lines to Tree 01:30- 02:00 0.50 WHSUR: INT1 Pull BPV 02:00 - 03:00 1.00 WHSUR INT1 Displace Diesel From Well 03:00 - 03:30 0.50 WHSUR INT1 PJD Lines & Blow Down Same 03:30 - 04:00 0.50 WHSUR INT1 Set TWC, Test to 1000psi ! ~'~,~ ~, 04:00 - 05:00 1.00 WHSUR INT1 N/D Tree i;~J ~'~ ~ ~ 05:00 - 07:30 2.50 BOPSUIq INT1 N/U BOP !07:30-08:30 1.00 BOPSUI:; INT1 PJUto Test BOP ~a~J(a0it&GasCot3s. Col~ilmis~ri '08:30 - 14:00 5.50 BOPSUI:; INT1 Test BOP, 250 Low, 3500 High, Witnessj~ll~(~Ji~C, ChuckShieve 14:00 - 15:00 1.00 PULL INT1 BOLDS, Pull HGR to Rotaty, Gained 21 15:00 - 15:30 0.50 PULL INT1 RJU TBG Tools 15:30 - 18:00 2.50 PULL INT1 Pull & L/D 74 jt 3.5:" 9.3~ EUE L80 R-3 TBG 18:00 - 19:30 1.50 CLEAN INT1 Pull Wear Bushing, Set Test Plug, Test Lower Pipe Rams to 250 Iow 3500 High, Pull Plug, Set Wear Ring 19:30 - 00:00 4.50 DRILL INT1 P/U 4" DP & RIH 8/9/2000 00:00 - 01:00 1.00 S'I'WHIP INT1 Continue P/U DP & RIH 01:00 - 03:00 2.00 STWHIP INT1 POH Std Back BHA 03:00 - 05:00 2.00 s'rWHIP INT1 P/U BHA # ! :Start Mill, Lower Srting Mill, Upper String Mill, 1X HWDP, 9X61/2 DC, Drlg Jars, 12 HWDP, XO 05:00 - 06:00 1.00 STWHIP INT1 Tack Weld Retainer Plates on Iron Roughneck Spinner 06:00 - 09:30 3.50 STWHIP INT1 P/U 4"DP & RIH to 5362, Take wts & Torque 09:30 - 12:00 2.50 STWHIP INT1 POH L/D Jars 12:00 - 13:00 1.00 S'I'WHIP INT1 R/U Schlumberger, GPJCCL EZSV PJSM 13:00 - 14:30 1.50 s'rWHIP INT1 Log GR/CCL, Identify Sand Above CSG Collar, Set EZSV @ 5293 (3'Above Collar) in Sandstone 14:30 - 15:00 0.50 STWHIP INT1 POH & R/D Schlumberger 15:00 - 15:30 0.50 STWHIP INT1 Test EZSV & CSG to 3000 30 minutes 15:30 - 17:30 2.00 STWHIP INT1 PJSM, PU Whipstock Assy,Start Mill,Lower String MilI,HWDP,(X6.5 DC, Jar, 12 HWDP,XO 17:30 - 20:00 2.50 STWHIP INT1 RIH to 5241, Wash Down W/Whipstock Towards EZSV @ 5293 20:00 - 20:30 0.50 S-I'WHIP INT1 Initial Pump Pressure 1570 psi @ 588 gpm, Good Signal FRom MWD, Lost 600 psi Pump Pressure, Check Pumps, OK, Put Pumps Back on Hole, Still loosing Pressure, an Additional 75 psi 20:30 - 22:30 2.00 STWHIP INT1 POH Wet Looking For Washout, 22:30 - 00:00 1.50 STWHIP INT1 Handle BHA, No Visual Sign of Washout 8/10/2000 00:00 - 02:00 2.00 S'I'WHIP OTHR INT1 RIH W/BHA, ReTorque ea Connection, Changed Shear Bolt Whipstock 02:00 - 03:00 1.00 STWHIP OTHR INT1 Slip & Cut 150' Drill Line 03:00 - 06:00 3.00 STWHIP OTHR INT1 TIH W/Whipstock, Torque Check Every Break 06:00 - 07:30 1.50 STWHIP INT1 Orient & Set Whipstock @ 52 R, Top of Window 5272 07:30 - 12:30 5.00 STWHIP INT1 Cut Window from 5272-5301, Bottom of Whipstock 5295 12:30 - 13:30 1.00 STWHIP INT1 Circ Lo/Hi Sweeps Around, Work Window Area 13:30 - 14:00 0.50 STWHIP INT1 Flow Check, Pull 2 stds into CSG 14:00 - 14:30 0.50 STWHIP INT1 Break Circ, Close Bag, Perform LOT= 4117 TVD, 9.8 Mud, 430 PSI= Printed: 8/30/2000 2:15:36 PM Operations Summary Report [i V ¢ 3 £003 Legal Well Name: 11-28 ~ ~ a~~~ ~. ~B~ Common Well Name: 11-28 ~~te: 8/8/2000 Event Name: REENTER+COMPLETE Sta~: 8~/2000 End: 8/26/2000 Contractor Name: NABORS Rig Release: 8/26/2000 Group: RIG Rig Name: NABORS 7ES Rig Number: 7ES : Date. From, To HOurs: Activi~ c~e:: Phase : Description of OperationS 8/10/2000 14:00 - 14:30 0.50 S~HIP INT1 11.8 ~/gal EMW 14:30 - 17:30 3.00 S~HIP INT1 POH W~hipstock, Unifo~ Wear on Mills 17:30 - 18:00 0.50 S~HIP INT1 Flush/Jet Stack, Fun~ion Rams 18:00 - 18:30 0.50 S~HIP INT1 Sewi~ Wear Ring 18:30 - 19:00 0.50 DRILL INT1 Clear Floor 19:00 - 21:00 2.00 DRILL LNR1 P/U BHA & Orient 21:00 - 23:00 2.00 DRILL LNR1 RIH Break Circ & Orient 50 R, No Problem ~ TOW 23:00 - 00:00 1.00 DRILL LNR1 DRLG 8 1/2 Hole f/5301-5339 AST .5 Hrs 8/11/2000 00:00 - 12:00 12.00 DRILL LNR1 DRLG to 60~, Pumping Weighted Visc Sweeps, ART 2.5 AST 5 HRS 12:00 - 13:00 1.00 DRILL LNR1 Change Swab & Liner ~ 1 Pump 13:00 - 21:00 8.00 DRILL LNR1 DRLG to 6673, ART 5.5, AST 1.5 Hrs 21:00 - 21:30 0.50 DRILL LNR1 Change Swab ~1 Pump, Cylinder ~2 21:30-00:~ 2.50 DRILL LNR1 DRLG to 6798, ART2, AST1.5Hrs, Hi Vis Sweep Eve~ 1~' 8/12/2000 00:00 - 07:30 7.50 DRILL LNR1 Drlg to 7361 AST 1, ART 4.25 Hrs 07:30 - 09:00 1.50 DRILL LNR1 Pump Hi Vis Sweep, Repeat Suweys 09:00 - 09:30 0.50 DRILL LNR1 Drop ESS, Pump D~ Job 09:30 - 13:00 3.50 DRILL LNR1 POH, Tight Spots ~ 6880, 6854, 6729, 6130 & Troube Pulling BHA Through Window 13:00- 16:00 3.00 DRILL ]LNR1 POH 16:00 - 18:30 2.50 DRILL LNR1 Handle BHA, Download MWD 18:30 - 20:00 1.50 DRILL LNR1 ]P/U New BiFMotor, Orient MWD 20:00 - 22:00 2.00 DRILL LNR1 RIH to 5200 ', Fill Pipe 22:00 - 22:30 0.50 DRILL LNR1 Orient to Window 22:30 - 00:00 1.50 DRILL LNR1 RIH to 7342, No Problem Geffing Through Window 8/13/2000 00:00 - 00:30 0.50 DRILL LNR1 Pump Lo Hi Visc, Weighted Sweep 00:30 - 12:00 11.50 DRILL LNR1 Drlg to 8091; AST 2, ART 6.5, ROP while Slide 50-70 ~hr, 100-200 While Drlg 12:00 - 00:00 12.00 DRILL LNR1 Drlg to 8744; AST 2.5 ART 5, Pumping Lo/Hi Sweeps eve~ 300' 8/14/2000 00:00 - 12:00 12.00 DRILL LNR1 Drlg & Su~ey to 9397, Sweep hole with 34 bbl LoVis/35 bbl Weighted HiVis Eve~ 300' 12:00 - 19:00 7.00 DRILL LNR1 Drlg & Suwey as above, Torque, Drag, & Pump Pressure Increase, Redu~d ROP 19:00 - 20:30 1.50 DRILL LNR1 Circ Lo/Hi Sweep,Rotate & Reciprocate Pipe, Increase In CuEings Returns 20:30- 00:00 3.50 DRILL LNR1 Drlg 8/15/2000 00:00 - 07:00 7.00 DRILL LNR1 Drilled from 9894 ff. to 10,238 ff. Sliding time - 2 hrs. Rotating time - 3.5 hrs. 07:00 - 10:00 3.00 DRILL LNR1 Pumped Hi-Lo sweep and circulated hole clean. Flow check. 10:00 - 15:30 5.50 DRILL LNR1 POOH to condu~ BOPE test at regular 7 day intewal per desire of AOGCC agent. Flow check at BHA for 10 min. Held weekly tool pusher safety meeting. PJSM in ~mp 15:30 - 17:30 2.00 DRILL LNR1 Stood back BHA. Clear floor. 17:30 - 20:30 3.00 DRILL LNR1 Pulled wear ring. Tested BOPE, choke manifold, safety valve, da~ valve, hose to 250/3500 psi per SSD and AOGCC requirements. Had to repair boEom IBOP. Witness of test waived by John Spalding, AOGCC agent. Installed wear ring. 20:30 - 21:30 1.00 DRILL LNR1 Sewi~d top drive. 21:30 - 23:00 1.50 DRILL LNR1 Make up BHA ~. 23:00 - 00:00 1.00 DRILL LNR1 RIH to 2000 ff. PJSM at camp. 8/16/2000 00:00 - 01:30 1.50 DRILL LNR1 RIH to 4200 ff. Filled pipe and pump ~ 1 bpm. 01:30 - 02:30 1.00 DRILL LNR1 Cut drill line. 02:30 - 04:30 2.00 DRILL LNR1 Washed and reamed to 10,238 ff. Torque 16K ft-lbs. No fill. Printed: 8/30/2000 2:15:36 PM BP AMOCO Page 3 of 5 Operations Summa Repo ke~al Well ~ame: ~ ~-28 Common Woll ~ame: ~ ~-28 Spud Date: 81812000 Event Name: REENTER+COMPLETE Sta~: 8~/2000 End: 8/26/2000 Contractor Name: NABORS Rig Release: 8~26~2000 Group: RIG Rig Name: NABORS 7ES Rig Number: 7ES Date From - To Hours ACtivi~ c~e Phase Description of Operations 8/16/2000 04:30 - 12:00 7.50 DRILL LNR1 Drilled to 10,517 ff. Added 1% EP Mudlube and redu~d torque from 16K to 10K E-lbs. 12:00 - 00:00 12.00 DRILL LNR1 Drill by rotating and sliding to 10,951 ff. Bit balled at 10,945 ff. Sliding time - 2.5 hrs; Rotating time - 12 hrs. 8/17/2000 '00:00 - 04:00 4.00 DRILL LNR1 ~ Drilled from 10,951ff. to 11,050 ff. 04:00 - 05:00 1.00 DRILL ~LNR1 Repla~d swab & liner in ~2 pump. 05:00 - 12:00 7.00 DRILL LNR1 Drilled to 11,359 ff. ART-5.5 hrs.; AST-2.5 hrs. 12:00 - 18:30 6.50 DRILL LNR1 Drilled to 11,550 ff. 18:30 - 20:00 1.50 DRILL LNR1 CBU for geological samples. 20:00 - 20:30 0.50 DRILL LNR1 Drilled to 11,590 ff. ART-5.5 hrs.; AST-0 hrs. 20:30 - 22:30 2.00 DRILL LNR1 CBU for geological samples. 22:30 - 00:00 1.50 DRILL LNR1 Pump slug. Begin wiper trip to casing window. 8/18/2000 00:00 - 01:30 1.50 DRILL LNR1 POOH to 7149 ff. measuring DP. 01:30 - 02:30 1.00 DRILL LNR1 Circulated and took check su~ey for JORPS. 02:30 - 03:00 0.50 DRILL LNR1 Finsished wiper trip into casing at 5200 ff. 03:00 - 04:00 1.00 DRILL LNR1 Slip and cut drill line. 04:00 - 05:00 1.00 DRILL LNR1 RIH to 7149 05:00 - 06:00 1,00 DRILL LNR1 Circulated and took check su~ey for JORPS at 7050 ff. 06:00 - 07:00 1.00 DRILL LNR1 Continued RIH to 11,590 ff. TD. No fill following wiper trip. 07:00 - 10:30 3.50 DRILL LNR1 Circulated and conditioned mud to run liner. SpoEed liner mud pill 11,590-10,500 ff. 10:30 - 13:30 3.00 DRILL LNR1 Dropped DP rabbit. Check for flow. POOH to 6221 ff. 13:30 - 14:30 1.00 DRILL LNR1 Spotted liner running mud pill 6221-5200 ff. 14:30 - 16:30 2.00 DRILL LNR1 POOH to BHA. 16:30 - 19:00 2.50 DRILL LNR1 Laid down 6 3~4" directional BHA, loaded out and cleared floor. 19:00 - 20:00 1.00 DRILL LNR1 Rigged up 7" casing tools. 20:00 - 20:30 0.50 DRILL LNR1 PJSM re running 7" casing. 20:30 - 21:00 0.50 DRILL LNR1 Made up 7" float equipment and checked same - OK. 21:00 - 00:00 3.00: DRILL LNR1 RIH w/7" casing liner to 1980 ff. 8/19/2000 00:00 - 06:00 6.00 DRILL LNR1 RIH with 7" liner to 5047 ff. Stopped to replace elevators. Obtained movement parameters inside casing at window. 06:00 - 08:30 2.50 DRILL LNR1 Circ. volume of liner and changed out elevators. Made up ~menting head on DP single. 08:30 - 10:30 2.00 DRILL LNR1 Finished running 6466 ff. of 7" liner. 10:30 - 13:00 2.50 DRILL LNR1 Installed Baker Flex Lok liner hanger & ~P liner top packer. Reciprocated and rotated liner while picking up hanger. 13:00 - 16:30 3.50 DRILL LNR1 Tripped in hole with 7" liner on 4" DP to 11,594 ff. Took pipe movement parameters. 16:30 - 19:00 2.50 DRILL LNR1 Broke circulation at 3.0 bpm at 800 psi. Staged rate up to 8.5 bpm at 1900 psi. Held PJSM with Doweli, Baker, Peak and Nabors personnel. 19:00 - 20:45 1.75 DRILL LNR1 Cemented liner with 118 bbls. Class G cement mixed at 11.5 ppg and 33 bbls. Class G ~ment mixed at 15.8 ppg. Bumped pllug and set liner hanger with 3200 psi. Floats held OK. 20:45 - 21:30 0.75 DRILL LNR1 Pressured DP to 4200 psi with Dowell and released HR se~ing tool. Set Baker ~P liner top packer with 55K slack off weight. 21:30 - 22:30 1.00 DRILL LNR1 Circulated bosoms up from top of liner hanger at 5091 ff. while rotating and reciprocating pipe. Recovered 30 bbls. preflush but no ~ment. Mixed and pumped barite slug. 22:30 - 00:00 1.50 DRILL LNR1 POOH with DP and liner seeing tools. 8~20~2000 00:00 - 00:30 0.50 DRILL LNR1 Finished POOH with DP & liner seeing tools. 00:30 - 01:30 1.00 DRILL LNR1 Break out and lay down liner seeing tools and cementing head. 01:30 - 02:00 0.50 DRILL LNR1 Se~i~ top drive. 02:00 - 05:30 3.50 DRILL PROD1 Made up 4 3~4" PDM, LWD and MWD tools. PJSM nuclear logging Printed: 8/30/2000 2:15:36 PM ,ECEIVED BP AMOCO [:.,',': ;?' ~ ""~'"'0 ¢,,:jt,iO Page 4 of 5 Operations SUmma Legal Well Name: 11-28 Common Well Name: 11-28 Spud Date: 8/8/2000 Event Name: REENTER+COMPLETE Start: 8/7/2000 End: 8/26/2000 Contractor Name: NABORS Rig Release: 8/26/2000 Group: RIG Rig Name: NABORS 7ES Rig Number: 7ES Date From 'To HoUrs Activi~ Code PhaSe: ~ DescriPtiOn of operations : 8/20/2000 02:00 - 05:30 3.50 DRILL PROD1 tools. Picked up HWDP, jars, etc per BHA #5. 05:30 - 08:00 2.50 DRILL PROD1 RIH with BHA #5 to 5500 ft. and tested MWD tools. 08:00 - 08:30 0.50 DRILL PROD1 Picked up 27 joints 4" DP. 08:30 - 11:00 2.50 DRILL PROD1 RIH with BHA #5 and tagged landing collar at 11,507 ft. 11:00 - 13:30 2.50 DRILL PROD1 Circulated and conditioned mud. 13:30 - 14:30 1.00 DRILL PROD1 Tested 9 5/8" casing and 7" liner to 3000 psi with 100 psi leakoff in 30 mins. OK. 14:30 - 17:30 3.00 DRILL PROD1 Drilled float collar and cement from shoe track with 4-6K WOB at 1-2 rain/ft. 17:30 - 19:30 2.001 DRILL PROD1 Changed out 10.7 ppg LSND mud with 8.4+ppg QuikDrlnN mud. 19:30 - 20:00 0.50 DRILL PROD1 Drilled 20 ft. new hole to 11,614 ft. 20:00 - 21:00 1.00 DRILL PROD1 Performed FIT to 475 psi. EMW - 9.53 ppg. 21:00 - 00:00 3.00 DRILL PROD1 Directionally drill by sliding to 11,665 ft. AST - 2 3/4 hrs. ART - 0 hrs. 8/21/2000 00:00 - 00:00 24.00 DRILL PROD1 Directionally drilled from 11,665 ft. to 12,362 ft. AST - 4.0 hrs; ART- 14.25 hrs. 8/22/2000 00:00 - 04:30 4.50 DRILL PROD1 Drilled to planned TD of 12,455 ft. 04:30 - 07:00 2.50 DRILL PROD1 CBU and circulate HiVis sweep surface to surface. 07:00 - 07:30 0.50 DRILL PROD1 Short trip bit into casing. 07:30 - 09:00 1.50 DRILL PROD1 Service top drive. Slip and cut drill line. 09:00 - 09:30 0.50 DRILL PROD1 Short trip bit back to TD with no problems. 09:30 - 12:00 2.50 DRILL PROD1 CBU and circulate HiVis sweep surface to surface. 12:00 - 13:30 1.50 DRILL PROD1 Spot liner running mud pill in interval 11,580 - 12,455 ft. Drop ESS survey tool and 2.375" DP rabbit. 13:30 - 14:00 0.50 DRILL PROD1 Pull bit to 11,455 ft and take JORPS survey. ~14:00 - 18:00 4.00 DRILL PROD1 POOH with bit to 3230 ft. Hole ceased to take proper fill at 3230 ft. after acting normally for 100 stands. 18:00 - 19:30 1.50 DRILL PROD1 Investigated cause of well not taking proper mud fill. Checked surface equipment. Pulled additional 15 stands with hole taking no mud. Well static when not moving pipe. 19:30 - 00:00 4.50 DRILL PROD1 Began RIH with DP. Filled pipe at 3230 ft., 5222 ft. and 7369 ft. with hole returning proper volume of mud for pipe run. 8/23/2000 00:00 - 03:00 3.00 DRILL DISP PROD1 Circulated bottoms up. Had no reservoir influx. Monitored well- static. Spotted 30 bbl. liner pill from 12,455 ft. to 11,500 ft. 03:00 - 04:30 1.50 DRILL DISP PROD1 POOH with bit to 10,100ft. Mix and pump dry job. Monitor well - static. 04:30 - 09:00 4.50 DRILL DISP PROD1 POOH to BHA. 09:00 - 10:00 1.00 DRILL PROD1 Laid down BHA#5. 10:00 - 11:00 1.00 DRILL PROD1 Remove nuclear sources from LWD and download data. 11:00 - 12:00 1.00 DRILL PROD1 Finish laying down BHA. 12:00 - 13:00 1.00 CASE PROD1 Clear floor and rig up to run 4 1/2" liner. 13:00 - 13:15 0.25 CASE PROD1 PJSM with all personned. 13:15 - 21:30 8.25 CASE PROD1 Made up and checked shoe joints. Ran 25 joints 4 1/2" 12.6 #.ft, L-80 IBT liner, Baker liner hanger and liner top packer. RIH on 4" drill pipe filling every 900 ft. 21:30 - 22:00 0.50 CASE PROD1 Circulated pipe volume at 7" casing shoe. 22:00 - 22:30 0.50 CASE I PROD1 RIH with liner to 12,455 ft. TD. 22:30 - 00:00 1.50 CEMT PROD1 Installed cementing head. Circulated and conditioned mud while reciprocating liner. Preparing to cement. 8~24~2000 00:00 - 01:10 1.17 CEMT PROD1 Circulate and condition mud. Maximum circulation rate of 6 1/4 bpm, 1350 psi. Held PJSM with Dowell, Baker, Peak, Nabors and Baroid personned. Began mixing cement and preflush at 00:30. 01:10 - 01:15 0.08 CEMT PROD1 Pumped 5 bbl freshwater and tested lines to 4500 psi. 01:15 - 02:15 1.00 CEMT PROD1 Pumped additional 5 bbls freshwater, 30 bbls. Dowell B-45 spacerand Printed: 8/30/2000 2:15:36 PM ( (REC! BP AMOCO ;".~'~ =' ~i ,,~ "n.-,., Page 5 of 5 OPerations Summary RelatOr&_ Legal Well Name: 11-28 Anchorage Common Well Name: 11-28 Spud Date: 8/8/2000 Event Name: REENTER+COMPLETE Start: 8/7/2000 End: 8/26/2000 Contractor Name: NABORS Rig Release: 8/26/2000 Group: RIG Rig Name: NABORS 7ES Rig Number: 7ES Date FrOm,To Hours ACtivitY COde :Phase Descriptionofo ratOns___.pe_~__j~___ 8/24/2000 01:15 - 02:15 1.00 CEMT PROD1 26 bbls. Class G cement mixed at 15.8 ppg. Washed up lines to cementing head, dropped drill pipe wiper plug. Pumped 20 bbls. hi vis 3erforation pill mud and displaced cement from drill pipe with rig pump with 108.1 bbls. mud at final pressure of 1600 psi at 6.0 bpm. 02:15 - 02:30 0.25 CEMT PROD1 Bumped plug with 3200 psi and set hydraulic liner hanger. Pressured drill pipe to 4200 psi with Dowell and set Baker ZXP liner top packer. Released setting tool. 02:30 - 06:30 4.00 CEMT ;PROD1 Circulated bottoms up at liner hanger and recovered freshwater spacer, preflush and estimated 4.0 bbls cement. Cleaned mud pits and displaced mud from wellbore with seawater. 06:30 - 07:30 1.00 CEMT PROD1 i Rigged down cementing equipment and laid down cementing head. Cleared floor. 07:30 - 11:00 3.50 CEMT PROD1 POOH with drill pipe to 7282 ft. 11:00 - 13:00 2.00 CEMT PROD1 Shut down rig operations for 1.0 hour for SAFETY STANDDOWN to review and discuss recent fatalities in BP organization with both Hoffman and Henson crews. 13:00 - 18:30 5.50 CEMT PROD1 Finished lay down drill pipe. BOP TEST DUE 8/22/00 AND EXTENDED WHILE RUNNING 4 1/2" LINER WAIVED BY JEFF JONES, AOGCC AGENT, DUE TO WELL'S BEING CASED AND UNPERFORATED. 18:30 - 19:30 1.00 RUNCO~I COMP Tested 9 5/8" casing, 7" liner and 4 1/2" liner to 3000 psi for 30 rains. - OK. 19:30 - 21:00 1.50 RUNCO~I COMP Pulled wear ring, slipped and cut drill line. 21:00 - 21:30 0.50 RUNCO~I COMP PJSM and rig up to run completion. 21:30 - 00:00 2.50 RUNCO~ COMP Made up WLEG, X nipple, Baker Packer and RIH picking up 3 1/2" tubing and gas lift mandrels. 8/25/2000 00:00 - 08:30 8.50 RUNCOr COMP Continued to RIH for completion picking up 3 1/2" tubing. '08:30 - 09:00 0.50 RUNCOr COMP Jim Denny held BOP drill and safety shutdown with Hoffman crew. 09:00 - 11:30 2.50 RUNCO~ COMP Finished picking up tubing. Spaced out tubing, installed tubing hanger and landed hanger with EOT at 11,414 ft. 11:30 - 15:00 3.50 RUNCOk COMP Reverse circulated well with filtered seawater adding Corexit packer fluid treatment at 110 gals per 450 bbls. 15:00 - 18:00 3.00 RUNCO~ COMP Dropped ball rod and set Baker S-3 packer at 11,370 ft. with 3500 psi. Tested tubing to 3500 psi for 30 mins. -OK. Tested annulus to 3000 psi for 30 mins - OK. Sheared RP valve in GLM at 4706 ft. 18:00 - 20:00 2.00 RUNCOI~ COMP Installed TWC and nippled down DOPE. 20:00 - 23:00 3.00 RUNCOr~ COMP Installed Christmas tree and tested to 5000 psi. Rigged up DSM with lubricator and pulled TWC. 23:00 - 00:00 1.00 RUNCOI~ COMP Rigged up Little Red and freeze protected 9 5/8" X 3 1/2" annulus with 145 bbls. used diesel. 8/26/2000 00:00 - 02:30 2.50 RUNCOI~ COMP Finished pumping 145 bbl diesel freeze protect. Installe BPV valve in tree. U-tube equalized diesel from annulus to tubing. 02:30 - 04:00 1.50 RUNCOr~I COMP Blew down fluid lines and rigged down drilling rig. Released rig at 0400 hrs. Printed: 8/30/2000 2:15:36 PM Date 8/29/2000: 8/31/2000: 9/07/2000: 9/08/2000: · 9/13/2000: 9/19/2000: 9/30/2000: 10/02/2000: RIG SIDETRACK INITIAL PERFORATION Event Sumnmry RECEIVED A t~,,a,., ex,, ,. - Installed GLV's. RIH & tagged PBTD @ 12209' SLM. Ran Mem GR/CCL log f/PBTD to GLM#1. Performed FCO to 12368'. RIH & tagged PBTD @ 12356' SLM. MIRU ELU. PT'd equip to 3000 psi. RIH w/perf guns & tied-into EWR/DGR Log dated 8/24/2000. Shot 24' of initial perforations f/: 12320'-12344' MD (Zone IA) Used 2-1/2" carriers & all shots @ 6 SPF. POOH w/guns - ASF. RD ELU (more perfs to follow at latter date). RIH & tagged PBTD @ 12350' MD. MIRU ELU. PT'd equip to 3000 psi. RIH w/perf guns & logged tie-in. Positioned guns in shooting zone. Flowed well to achieve underbalanced condition. Shot 14' of perforations f/: 12288'- 12302' MD (Zone lB) Used 2-1/2" carriers & all shots @ 6 SPF. Tagged PBTD @ 12364' MD & POOH w/ guns. ASF. RD ELU. Well BOL - this is the first day of production for 11-28A. Performed well test. Results for a 3.3 hour test (calculated for 24 hr rate) are below: Oil 1216 bbls Water 0 bbls Gas 24838 MSCFD FTP 390 psi FM GOR 20426 North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 11-28A IIFR Surveyed: 22 August, 2000 SURVEY REPORT 4 October, 2000 Your Reft API-500292195801 Surface Coordinates: 5952460.80 N, 707240.21 E (70° 16'24.7802"N, 148° 19' 24.8335" W) Kelly Bushing: 56.28ft above Mean Sea Level Survey Ref: svy9953 Sperry-Sun Drilling Services Survey Report for 11-28A IIFR Your Ref: AP1-$00292195801 Surveyed: 22 August, 2000 North Slope Alaska Measured Depth (ft) Incl. 5261.73 50.800 5272.00 50.820 5296.15 51.69o 5328.18 52.990 5359.99 53.19o 5390.80 52.920 5420,92 52.660 5451.24 52,520 5483.36 52,190 5515.57 51.680 5545.30 51.49o 5576.o8 51.42o 5607.76 51.160 5639.o6 51.23o 5668.76 51.24o 57oo.81 51.51o 5732.97 51,51o 5763.40 51.880 5793.28 51.810 5825.11 51.97o 5886,71 51.o8o 5978.85 50.530 6071.63 49.970 6163.45 50.360 6258.72 49.580 Azim. 309.988 309.990 309.990 312.590 315.64o 318.59o 321.470 324,380 326.490 327.690 327.1oo 327.070 328.17o 327.740 327.670 326.700 324.200 323.900 322.820 322.920 321.9oo 321.560 325.000 322.910 321.630 Sub-Sea Depth (ft) 4037.38 4O43.87 4058.98 4078.56 4097.66 4116.18 4134,40 4152.82 4172.44 4192.30 4210.77 4229.95 4249.77 4269.38 4287.98 4307.98 4328.00 4346.86 4365.32 4384.97 4423.29 4481.52 4540.86 4599.68 4660.96 Vertical Local Coordinates Global Coordinates Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 4093.66 4100.15 4115.26 4134.84 4153.94 4172.46 4190.68 4209.10 4228.72 4248.58 4267.05 4286.23 4306.05 4325.66 4344.26 4364.26 4384.28 4403.14 4421.60 4441.25 4479.57 4537.80 4597.14 4655.96 4717.24 1900.54 N 2132.91W 5954301.88 N 705055.77 E 1905.66 N 2139.01W 5954306.83 N 705049.53 E 1917.76 N 2153.44W 5954318.53 N 705034.77 E 1934.50 N 2172.49W 5954334.73 N 705015.27 E 1952.20 N 2190.74W 5954351.92 N 704996.53 E 1970.24 N 2207.50W 5954369.49N 704979.29 E 1988.62N 2222.91W 5954387.44N 704963.38 E 2007.83 N 2237.42W 5954406.25 N 704948.34 E 2028.77 N 2251.85W 5954426.78 N 704933.34 E 2050.06 N 2265.63W 5954447.68 N 704918.98 E 2069.68 N 2278.18W 5954466.95 N 704905.89 E 2089.89 N 2291.26W 5954486.80 N 704892.26 E 2110.76 N 2304.50W 5964507.30 N 704878.45 E 2131.44 N 2317.44W 5954527.61N 704864.95 E 2151.01N 2329.82W 5954546.84 N 704852.04 E 2172.06 N 2343.39W 5954567.50 N 704837.89 E 2192.79 N 2357.66W 5954587.83 N 704823.06 E 2212.12 N 2371.68W 5954606.76 N 704808.51 E 2230.97 N 2385.70W 5954625.22 N 704793.97E 2250.94 N 2400.82W 5954644.77 N 704778.31 E 2289.15 N 2430.23W 5954682.16 N 704747.86 E 2345.21N 2474.46W 5954736.98 N 704702.10 E 2402.37 N 2517.11W 5954792.94 N 704657.90 E 2459.37 N 2558.59W 5954848.78 N 704614.86 E 2517.07 N 2603.23W 5954905.22 N 704568.65 E Dogleg Rate (°/lOOft) 0.195 3.602 7.600 7.692 7.702 7.664 7.637 5.302 3.333 1.681 0.240 2.831 1.094 0.187 2.510 6.084 1.441 2.852 0.560 1.941 0.662 2.914 1.799 1.315 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 2854.19 2862.13 2880,92 2906.24 2931.67 2956.26 2980.11 3003.91 3028.85 3053.57 3076.24 3099.70 3123.74 3147.43 3169.95 3194.34 3219.02 3242.54 3265.74 3290.49 3338.22 34O9.00 3479.41 3548.89 3621.10 Tie-on Survey to GCT Gyro Window Point AK-6 BP_IFR-AK Continued... 4 October, 2000 -23:05 -2. DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A IIFR Your Ref: API-500292195801 Surveyed: 22 August, 2000 North Slope Alaska Measured Depth (ft) Incl. Azim. Sub-Sea Depth (ft) Vertical Local Coordinates Global Coordinates Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 6350,20 49.510 321.740 4720.32 4776.60 6442.56 49.250 321.970 4780.45 4836.73 6532.77 48.460 319.240 4839.81 4896.09 6629.83 48,890 317.920 4903.90 4960.18 6726,19 48.330 316.780 4967.61 5023.89 6819.56 48.890 313,780 5029.36 5085.64 6912.11 49.140 311.240 5090.06 5146.34 7003.88 48,890 311.740 5150.25 5206.53 7100.57 48.850 311.300 5213.85 5270.13 7198.93 49.540 311.790 5278,13 5334.41 7289.67 48.690 314.060 5337.52 .5393.80 7382,25 48.990 313.880 5398.46 5454.74 7475.80 49.750 314.310 5459.37 5515.65 7566.68 48.090 314.390 5519.09 5575.37 7662.51 47.110 317.770 5583.72 5640.00 7755.94 46.570 319.300 5647.63 5703.91 7849.31 46.470 318.370 5711.88 5768.16 7943.77 46.880 319.080 5776.69 5832.97 8036.63 47.370 318.880 5839.87 5896.15 8131.54 47.570 318.140 5904,03 5960.31 8224.01 48.790 317.180 5965.69 6021.97 8317,87 49,650 318.060 6026,99 6083.27 8410.11 48.490 315,050 6087.43 6143.71 8504.90 49.960 315.030 6149.33 6205.61 8597.42 47.590 315.280 6210,30 6266.58 2571.69 N 2646.38W 5954958.63 N 704524.01 E 2626,82 N 2689.69W 5955012.55 N 704479.20 E 2679.31N 2732.78W 5955063.84 N 704434.68 E 2733,97 N 2781.01W 5955117.14 N 704384.97 E 2787.14 N 2829.98W 5955168.94 N 704334.55 E 2836,90 N 2879.26W 5955217.33 N 704283.91 E 2884.09 N 2930.76W 5955263.09 N 704231.13 E 2929.99 N 2982.65W 5955307,54 N 704178.00 E 2978.27 N 3037.18W 5955354.29 N 704122.16 E 3027,64 N 3092.90W 5955402.12 N 704065.10 E 3074.35 N 3143.13W 5955447.42N 704013.60 E 3122.74 N 3193.30W 5955494.42 N 703962.12 E 3172.15 N 3244.29W 5955542.40 N 703909.79 E 3220.03 N 3293.27W 5955588.92N 703859.51 E 3270.98 N 3342.36W 5955638.49 N 703809.04 E 3322.05 N 3387.48W 5955688.30 N 70~762.52 E 3373.05 N 3432.08W 5955738.05 N 703716.54 E 3424.69 N 3477.41W 5955788.43 N 703669.81E 3476.04 N 3522.07W 5955838.52 N 703623.74 E 3528.43 N 3568.41W 5955889.61N 703575.98 E 3579.36 N 3614.82W 5955939.25 N 703528.18 E 3631.86 N 3662.73W 5955990.41N 703478.85 E 3682.45 N 3710.63W 5956039.67 N 703429.58 E 3733.25 N 3761.35W 5956089.04 N 703377.48 E 3782.58 N 3810.42W 5956137.01N 703327.07 E Dogleg Rate (°ll00ft) 0.119 0.339 2.441 1.113 1.061 2.484 2.089 0.493 0.345 0.796 2.110 0.356 0.884 1.828 2.798 1.327 0.731 0.698 0.551 0,612 1.529 1,159 2.767 1.551 2.570 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 3690.11 3759.58 3827.07 3899.74 3971.92 4041.94 4111.76 4180.96 4253.71 4328.09 4396.67 4466.37 4537.36 4605.87 4676.57 4744.52 4812.04 4880.54 4948.35 5018.09 5086.87 5157.81 5227.42 5299.20 5368.77 rn Continued.., 4 October, 2000 - 23:05 - 3 - DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A IIFR Your Ref: AP1-$00292195801 Surveyed: 22 August, 2000 North Slope Alaska Measured Depth (fi) Incl. Azim. Sub-Sea Depth (ft) Vertical Local Coordinates Global Coordinates Depth Northings Fastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 8689.60 48.230 314.880 6272.09 6328.37 8782.59 48.420 314,940 6333.92 6390.20 8874.38 48.270 313.840 6394.93 6451.21 8970.03 47.610 314.750 6459.01 6515.29 9063.79 46.570 316.410 6522.84 6579.12 9157.25 46.990 315.870 6586.84 6643.12 9247.10 47.190 316.160 6648.02 6704.30 9343.65 47.290 316.990 6713.57 6769.85 9437.31 47.310 316.530 6777.09 6833.37 9530.87 47.460 316.030 6840.43 6896.71 9623.23 47.340 314.680 6902.95 6959.23 9716.80 47.270 315.050 6966.40 7022.68 9809.82 47.430 316.690 7029.43 7085.71 9901.14 47.470 316.220 7091.18 7147.46 9996.02 47.160 315.810 7155.51 7211.79 10090.37 47.120 314.840 7219.68 7275.96 10181.13 47.570 317.300 7281.19 7337,47 10277.01 47.580 318.210 7345.87 7402.15 10369.31 47.290 316.700 7408.31 7464.59 10460.52 47.210 314.150 7470.23 7526.51 10557.36 48.560 316.750 7535.17 7591.45 10648.93 50.350 320.650 7594.71 7650.99 10745.59 50.480 319.400 7656.30 7712.58 10838.19 50.220 319.070 7715.39 7771.67 10932.50 50.330 316.770 7775.67 7831.95 3831.02 N 3858.72W 5956184.10 N 703277.45 E 3880.05 N 3907.91W 5956231.76 N 703226.93 E 3928.03 N 3956.92W 5956278.37 N 703176.62 E 3977.62 N 4007.75W 5956326.54 N 703124.44 E 4026.65 N 4055.81W 5956374.23 N 703075.04 E 4075.76 N 4103.01W 5956422.02 N 703026.52 E 4123.11N 4148.71W 5956468.09 N 702979.53 E 4174.59 N 4197.43W 5956518.22 N 702929.40 E 4224.74 N 4244.59W 5956567.04 N 702880.88 E 4274.50 N 4292.17W 5956615.47 N 702831.95 E 4322.87 N 4339.95W 5956662.51N 702782.86 E 4371.38 N 4388.69W 5956709.66 N 702732.80 E 4420.49 N 4436.32W 5956757.43 N 702683.83 E 4469.25 N 4482.67W 5956804.90 N 702636.16 E 4519.43 N 4531.11W 5956853.73 N 702586.36 E 4568.61N 4579.73W 5956901.55 N 702536.40 E 4616.68 N 4626.03W 5956948.33 N 702488.80 E 4669.07 N 4673.61W 5956999.39 N 702439.79 E 4719.15 N 4719.57W 5957048.19 N 702392.47 E 4766.86 N 4766.57W 5957094.58 N 702344.17 E 4818.05 N 4816.94W 5957144.37 N 702292.41 E 4870.33 N 4862.83W 5957195.36 N 702245.10 E 4927.41N 4910.68W 5957251.11N 702195.69 E 4981.41N 4957.24W 5957303.80 N 702147.67 E 5035.24 N 5005.84W 5957356.27 N 702097.59 E Dogleg Rate (°/lOOfl) 0.765 0.210 0.910 0.987 1.706 0.616 0.325 0.640 0.362 0.425 1.084 0.300 1.308 0.382 0.456 0.755 2.054 0.701 1.245 2.055 2.431 3.780 1.006 0.393 1.879 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 5437.16 5506.61 5575.19 5646.21 5714.85 5782.92 5848.69 5919.51 5988.27 6057.08 6125.05 6193.81 6262.20 6329.42 6399.12 6468.27 6534.97 6605.60 6673.47 6740.42 6812.22 6881.56 6955.66 7026.67 7099.05 Continued... 4 October, 2000- 23:05 - 4 - DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A IIFR Your Ref: API-500292195801 Surveyed: 22 August, 2000 North Slope Alaska Measured Sub-Sea Vertical Local Coordinates Depth Incl. Azim. Depth Depth Northings Eastings (ft) (ft) (ft) (ft) (ft) Global Coordinates Northings Eastings (ft) (ft) 11023.82 50.500 316.620 7833.86 7890.14 5086.46 N 5054.12 W 11120.15 49.830 317.340 7895.57 7951.85 5140.54 N 5104.58 W 11211.57 46.740 318.820 7956.40 8012.68 5191.29 N 5150.18 W 11304.00 45.230 318.360 8020.62 8076.90 5241.15 N 5194.15 W 11398.42 45.480 317.930 8086.97 8143.25 5291.18 N 5238.97 W 11492.40 46.490 317.550 8152.27 8208.55 5341.20 N 5284.42 W 11535.74 46.850 317.000 8182.01 8238.29 5364.36 N 5305.81 W 11642.82 47.640 310.090 8254.75 8311.03 5418.44 N 5362.76 W 11674.20 46.470 303.810 8276.14 8332.42 5432.24 N 5381.09 W 11704.81 44.720 299.550 8297.56 8353.84 5443.73 N 5399.68 W 11735.75 45.580 296.980 8319.38 8375.66 5454.12 N 5419.00 W 11793.74 45.130 296.810 8360.14 8416.42 5472.78 N 5455.80 W 11889.75 43.610 299.040 8428.77 8485.05 5504,20 N 5515.12 W 11983.76 42.820 297.310 8497.28 8553.56 5534.60 N 5571.85 W 12076.74 44.160 295.510 8564.74 8621.02 5563.05 N 5629.17 W 12170.88 43.220 297.160 8632.81 8689.09 5591.89 N 5687.44 W 12265.47 41.770 298.210 8702.56 8758.84 5621.56 N 5744.03 W 12362.02 40.180 298.660 8775.45 8831.73 5651.71 N 5799.70 W 12394.67 39.050 299.970 8800.60 8856.88 5661.90 N 5817.85 W 12455.00 39.050 299.970 8847.46 8903.74 5680.88 N 5850.78 W 5957406.14 N 702047.93 E 5957458.81 N 701995.99 E 5957508.29 N 701949.01 E 5957556.91 N 701903.69 E 5957605.70 N 701857.51 E 5957654.44 N 701810.70 E 5957677.00 N 701788.68 E 5957729.50 N 701730.26 E 5957742.79 N 701711.56 E 5957753.76 N 701692.66 E 5957763.61 N 701673.06 E 5957781.25 N 701635.76 E 5957811.03 N 701575.60 E 5957839.85 N 701518.05 E 5957866.71 N 701459.98 E 5957893.93 N 701400.93 E 5957922.04 N 701343.55 E 5957950.64 N 701287.06 E 5957960.33 N 701268.64 E 5957978.40 N 701235.20 E All data is in feet unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Magnetic Declination at Surface is 27.213° (30-Aug-00) The Dogleg Severity is in Degrees per 100ft. Vertical Section is from Well Reference and calculated along an Azimuth of 314.156° (True), Based upon Minimum Curvature type calculations, at a Measured Depth of 12455.00ft., Dogleg Rate (°/lOOft) 0.225 0.902 3.589 1.672 0.418 1.113 1.242 4.794 15.112 11.467 6.511 0.804 2.268 1.515 1.963 1.569 1.706 1.675 4.304 0.000 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 7169.35 7243.23 7311.31 7377.58 7444.59 7512.04 7543.52 ~' 7622.05 7644.82 7666.16 7687.257726.65'" 7791.10 7852.98 7913.92 7975.82 8037.09 8098.03 8118.15 Last Survey 8155.00 Projected Survey 4 October, 2000 - 23:05 . $. DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A IIFR Your Ref: AP1-$00292195801 Surveyed: 22 August, 2000 North Slope Alaska The Bottom Hole Displacement is 8155.00ft., in the Direction of 314.156° (True). Comments Measured Depth (ft) 5261.73 5272.00 12394.67 12455.00 Station Coordinates TVD (fi) 4093.66 4100.15 8856.88 8903.74 Northings Eastings Comment (~) (~) 1900.54 N 2132.91W Tie-on Su~eyto GCT Gyro 1905.66 N 2139.01W Window Point 5661.90 N 5817.85W Last Suwey 5680.88 N 5850.78W Projected Suwey Survey tool program From Measured Vertical Depth Depth (ft) (ft) 0.00 0.00 5296.15 4115.26 To Measured Vertical Depth Depth (ft) (ft) 5296.15 4115.26 12455.00 8903.74 Survey Tool Description AK-1 BP_HG - BP High Accuracy Gyro AK-6 BP_IFR-AK Alaska State Plane 4 PBU_EOA DS 11 4 October, 2000 - 23:05 - 6 - DrillQuest 1.05.05 North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 11-28A MWD Surveyed: 11 August, 2000 SURVEY REPORT 4 October, 2000 Your Ref: API-500292195801 Surface Coordinates: 5952460.80 N, 707240.21 E (70° 16' 24.7802" N, Kelly Bushing: 56.28ft above Mean Sea Level 148° 19' 24.8335" W) Survey Ref: s vy9951 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: AP1-$00292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Depth (fi) Incl. Azim. Sub-Sea Depth (ft) Vertical Local Coordinates Global Coordinates Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 5261.72 50.800 309.988 4037.37 4093.65 5272.00 50.820 309.990 4043.87 4100.15 5296.15 51.690 309.990 4058.98 4115.26 5328.18 52.990 312.590 4078.56 4134.84 5359.99 53.190 315.640 4097.66 4153.94 5390.80 52.920 318.590 4116.18 4172.46 5420.92 52.660 321.470 4134.40 4190.68 5451.24 52.520 322.780 4152.82 4209.10 5483.36 52.180 324.040 4172.44 4228.72 5515.57 51.680 327.400 4192.31 4248.59 5545.30 51.490 327.570 4210.78 4267.06 5576.08 51.420 325.640 4229.96 4286.24 5607.76 51.160 324.420 4249.77 4306.05 5639.06 51.230 325.110 4269.39 4325.67 5668.76 51.240 328.860 4287.99 4344.27 5700.81 51.510 324.300 4308.00 4364.28 5732.97 51.510 325.160 4328.02 4384.30 5763.40 51.880 322.380 4346.88 4403.16 5793.28 51.810 320.700 4365.34 4421.62 5825.11 51.970 323.700 4384.99 4441.27 5886.71 51.090 319.050 4423.32 4479.60 5978.85 50.530 317.790 4481.55 4537.83 6071.63 49.970 323.850 4540.91 4597.19 6163.45 50.360 322.870 4599.72 4656.00 6258.72 49.580 320.370 4661.01 4717.29 1900.54 N 2132.91W 5954301.88 N 705055.77 E 1905.66 N 2139.01W 5954306.83 N 705049.53 E 1917.76 N 2153.44W 5954318.53 N 705034.77 E 1934.50 N 2172.49W 5954334.73 N 705015.27 E 1952.20 N 2190.74W 5954351.92 N 704996.53 E 1970.24 N 2207.50W 5954369.49 N 704979.29 E 1988.62 N 2222.91W 5954387.44 N 704963.38 E 2007.62N 2237.69W 5954406.04 N 704948.08 E 2028.04 N 2252.85W 5954426.03 N 704932.36 E 2048.99 N 2267.13W 5954446.58 N 704917.51 E 2068.63 N 2279.65W 5954465.87 N 704904.45 E 2088.73 N 2292.90W 5954485.59 N 704890.65 E 2108.99 N 2307.07W 5954505.45 N 704875.93 E 2128.91N 2321.14W 5954524.98 N 704861.32E 2148.32 N 2333.76W 5954544.04 N 704848.17 E 2169.21N 2347.54W 5954564.54 N 704833.82 E 2189.76 N 2362.08W 5954584.68 N 704818.72 E 2209.02 N 2376.19W 5954603.54 N 704804.09 E 2227.42 N 2390.80W 5954621.53 N 704788.97 E 2247.20 N 2406.15W 5954640.88 N 704773.09 E 2284.87 N 2436.23W 5954677.71N 704741.98 E 2338.29 N 2483.62W 5954729.80 N 704693.14 E 2393.53 N 2528.66W 5954783.78 N 704646.59 E 2450.10 N 2570.74W 5954839.17 N 704602.97 E 2507.28 N 2616.01W 5954895.09 N 704556.14 E Dogleg Rate (°/~OOft) 0.195 3.602 7.600 7.692 7.702 7,664 3.463 3.281 8.357 0.780 4.909 3.115 1.732 9.844 11.146 2.093 7.271 4.427 7.433 6.080 1.222 5.057 0.923 2.170 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 2853.93 2861.88 2880.66 2905.98 2931.41 2956.00 2979.86 3003.72 3028.82 3053.67 3076.35 3099.86 3124.15 3148.13 317o.72 3195.17 3219.92 3243.47 3266.78 3291.58 3339.41 3410.63 3481.44 3551.06 3623.40 Tie-on Survey to GCT survey Window Point MWD Magnetic Continued.,. 4 October, 2000 - 23:04 - 2 - DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API-500292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Depth (fi) Incl. Azim. Sub-Sea Depth (ft) Vertical Local Coordinates Global Coordinates Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 6350.20 49.510 323.860 4720.37 4776.65 6442,56 49.250 322.390 4780.51 4836.79 6532.77 48.450 318.720 4839.88 4896.16 6629.83 48.890 318,850 4903.98 4960.26 6726,19 48.330 320.130 4967.69 5023.97 6819.56 48.890 315.150 5029.44 5085.72 6912.11 49.140 311,440 5090.16 5146.44 7003.88 48.890 313.230 5150.35 5206.63 7100.57 48.850 313,020 5213.95 5270.23 7198.93 49.540 312.330 5278.22 5334.50 7289.67 48.690 312.920 5337.62 5393.90 7382,25 48.990 311.900 5398.55 5454.83 7475.80 49,750 312.540 5459.47 5515.75 7566.68 48.090 314.570 5519.19 5575.47 7662.51 47.110 318.760 5583.82 5640.10 7755.94 46.570 317.810 5647.73 5704.01 7849.31 46.470 320.290 5711.98 5768.26 7943.77 46,880 318.340 5776.80 5833.08 8036.63 47.370 318.110 5839.98 5896.26 8131.54 47.510 320.020 5904.18 5960.46 8224.01 48.790 317.550 5965.88 6022.16 8317.87 49.650 319.520 6027.19 6083.47 8410.11 48.490 315.870 6087.63 6143.91 8504.90 49.960 318.290 6149.54 6205.82 8597.42 47,590 315.310 6210,5! 6266.79 2562.20 N 2658.75W 5954948,81 N 704511.91 E 2618.28 N 2700.81W 5955003.71N 704468.31 E 2670.73 N 2743.95W 5955054,95 N 704423.75 E 2725.56 N 2791.97W 5955108.43 N 704374.24 E 2780.51N 2838.93W 5955162.08 N 704325.78 E 2832.24 N 2886.11W 5955212.48 N 704277.20 E 2880,13 N 2936.94W 5955258.95 N 704225.06 E 2926.78 N 2988.15W 5955304.17 N 704172.59 E 2976.56 N 3041.31W 5955352.48 N 704118.08 E 3027.03 N 3096.04W 5955401.41N 704061.98 E 3073.48 N 3146.52W 5955446.46 N 704010.24 E 3120.49 N 3197.98W 5955492.03 N 703957.50 E 3168.20 N 3250.56W 5955538.27 N 703903.63 E 3215.38 N 3300.21W 5955584.08 N 703852.70 E 3266.82 N 3348.77W 5955634.15 N 703802.74 E 3317.69 N 3394.12W 5955683.76 N 703756.01 E 3368.85 N 3438.51W 5955733.68 N 703710.22 E 3420.95 N 3483.31W 5955784.53 N 703664.01 E 3471.70 N 3528.65W 5955834.01N 703617.29 E 3524.51N 3574.44W 5955885.54 N 703570.06 E 3576.31N 3619.83W 5955936.06 N 703523.26 E 3629.57 N 3666.88W 5955988.01N 703474.76 E 3681.10 N 3713.76W 5956038.23 N 703426.48 E 3733.67 N 3762.62W 5956089.44 N 703376.19 E 3784.41N 3810.22W 5956138.84 N 703327.21E Dogleg Rate (°llOOft) 2.904 1.240 3.189 0.464 1.154 4.046 3.038 1.497 0.169 0.880 1.058 0.891 0.964 2.484 3.386 0.940 1,930 1.563 0.558 1.490 2.424 1.834 3.243 2.478 3.525 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 3692.34 3761.61 3829.10 3901.76 3973.75 4043.64 4113.47 4182,70 4255.51 4329.93 4398.51 4468.17 4539.12 4607,61 4678.28 4746,27 4813.77 4882.22 4950.11 5019.76 5088.42 5159.29 5228.83 5300.51 5370.01 Continued.,. 4 October, 2000- 23:04 -3- DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: AP1.$00292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Depth (ft) Incl. Azim. Sub-Sea Depth (ft) Vertical Local Coordinates Global Coordinates Depth Northings Eastings Northings Eastings (ft) (ft) (ft) (ft) (ft) 8689.60 48.230 317.800 6272.30 6328.58 8782.59 48.420 316.350 6334.14 6390.42 8874.38 48.270 316.640 6395.14 6451.42 8970.03 47.610 318.300 6459.22 6515.50 9063.79 46.570 314.120 6523.07 6579.35 9157.25 46.990 313.880 6587.07 6643.35 9247.10 47.190 318.540 6648.27 6704.55 9343.65 47.290 316.860 6713.82 6770.10 9437.31 47.310 315.840 6777.34 6833.62 9530.87 47.460 314.890 6840.68 6896.96 9623.23 47.340 313.310 6903.20 6959.48 9716.80 47.270 317.790 6966.67 7022.95 9809.82 47.430 318.770 7029.69 7085.97 9901.14 47.470 314.900 7091.46 7147.74 9996.02 47.160 315.410 7155.79 7212.07 10090.37 47.120 313.960 7219.97 7276.25 10181.13 47.570 318.750 7281.48 7337.76 10277.01 47.580 316.460 7346.17 7402.45 10369.31 47.290 315.260 7408.60 7464.88 10460.52 47.210 313.100 7470.52 7526.80 10557.36 48.560 319.140 7535.50 7591.78 10648.93 50.350 321.370 7595.02 7651.30 10745.59 50.480 318.200 7656.63 7712.91 10838.19 50.220 318.230 7715.71 7771.99 10932.50 50.330 316.180 7775.99 7832.27 3834.07 N 3857.25W 5956187.19 N 703278.84 E 3884.93 N 3904.55W 5956236.72 N 703230.15 E 3934.67 N 3951.76W 5956285.15 N 703181.59 E 3986.99 N 3999.77W 5956336.13 N 703132.16 E 4036.56 N 4047.25W 5956384.37 N 703083.33 E 4083.87 N 4096.24W 5956430.31N 703033.05 E 4131.35 N 4141.76W 5956476.52 N 702986.25 E 4183.78 N 4189.46W 5956527.62 N 702937.12 E 4233.58 N 4236.97W 5956576.09 N 702888.25 E 4282.58 N 4285.35W 5956623.74 N 702838.55 E 4329.89 N 4334.17W 5956669.68 N 702788.44E 4378.96 N 4382.30W 5956717.41N 702738.97 E 4430.02 N 4427.83W 5956767.20 N 702692.06 E 4479.07 N 4473.84W 5956814.97N 702644.72 E 4528.52 N 4523.02W 5956863.04 N 702594.19 E 4577.15 N 4572.19W 5956910.30 N 702543.70 E 4625.44 N 4618.23W 5956957.30 N 702496.35 E 4677.70 N 4665.94W 5957008.23 N 702447.22 E 4726.48 N 4713.28W 5957055.69 N 702398.55 E 4773.16 N 4761.31W 5957101.02 N - 702349.26 E 4824.92 N 4811.03W 5957151.39 N 702298.13 E 4878.42 N 4855.50W 5957203.65 N 702252.21 E 4935.29 N 4903.58W 5957259.18 N 702202.57 E 4988.46 N 4951.09W 5957311.01 N' 702153.61 E 5041.68 N 5000.37W 5957362.86 N 702102.89 E Dogleg Rate (°/lOOft) 2.121 1.182 0.287 1.462 3.448 0.487 3.805 1.282 0.801 0.764 1.266 3.519 0.794 3.122 0.513 1.127 3.912 1.763 1.008 1.741 4.831 2.692 2.531 0.282 1.676 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 5438.35 5507.72 5576.25 5647.15 5715.75 5783.86 5849.60 5920.35 5989.14 6057.98 6125.96 6194.68 6262.93 6330.11 6399.85 6469.00 6535.67 6606.31 6674.27 6741.23 6812.97 6882.16 6956.29 7027.42 7099.85 Continued... 4 October, 2000.23:04 - 4 - DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: AP1-500292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate (fi) (fl) (fl) (ft) (ft) (ft) (ft) (°/lOOft) 11023.82 50.500 316.100 7834.18 7890,46 5092.42 N 5049.13 W 5957412.24 N 702052.75 E 0.198 11120.15 49.830 317.680 7895.89 7952.17 5146.42 N 5099.69 W 5957464.82 N 702000.73 E 1.439 11211.57 46.740 320.960 7956.73 8013.01 5198.12 N 5144.19 W 5957515.28 N 701954.82 E 4.312 11304.00 45.230 320.570 8020.95 8077.23 5249.60 N 5186.23 W 5957565.59 N 701911.38 E 1.662 11398.42 45.480 316.920 8087.31 8143.59 5300.09 N 5230.51 W 5957614.83 N 701865.72 E 2.763 11492.40 46.490 318.610 8152.61 8208.89 5350.13 N 5275.93 W 5957663.60 N 701818.94 E 1.681 11535.74 46.850 319.210 8182.35 8238.63 5373.89 N 5296.65 W 5957686.78 N 701797.57 E 1.305 11612.08 47.990 317.660 8234.01 8290.29 5415.94 N 5333.95 W 5957727.79 N 701759.13 E 2.113 11642.82 47.640 310.060 8254.67 8310.95 5431:70 N 5350.35 W 5957743.10 N 701742.31 E 18.349 11674,20 46.470 304.030 8276.06 8332.34 5445.54 N 5368.66 W 5957756.42 N 701723.62 E 14.548 11704.81 44.720 299.500 8297.48 8353.76 5457.06 N 5387.23 W 5957767.42 N 701704.74 E 12.017 11735.75 45.580 297,130 8319.30 8375.58 5467.45 N 5406.54 W 5957777.29 N 701685.15 E 6.100 11793.74 45.130 296.720 8360.05 8416.33 5486.14 N 5443.33 W 5957794.95 N 701647.86 E 0.925 11889.75 43.610 297.950 8428.68 8484.96 5516.96 N 5502.97 W 5957824.11 N 701587.39 E 1.819 11983.76 42.820 297.060 8497.20 8553.48 5546.69 N 5560.06 W 5957852.26 N 701529.50 E 1.061 1207'6.74 44.160 295.850 8564.65 8620.93 5575.19 N 5617.35 W 5957879.17 N 701471.45 E 1.697 12170.88 43.220 297.160 8632.73 8689.01 5604.20 N 5675.55 W 5957906.57 N 701412.48 E 1.386 12362.02 40.180 298.620 8775.42 8831.70 5663.63 N 5787.93 W 5957962.88 N 701298.50 E 1.670 12394.67 39.050 299.880 8800.58 8856.86 5673.79 N 5806.10 W 5957972.54 N 701280.06 E 4.246 12455.00 39.050 299.880 8847.43 8903.71 5692.73 N 5839.05 W 5957990.56 N 701246.60 E 0.000 All data is in feet unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Magnetic Declination at Surface is 27.213° (30-Aug-00) The Dogleg Severity is in Degrees per 100ft. Vertical Section is from Well Reference and calculated along an Azimuth of 314.273° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 12455.00ft., Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 717o.2o 7244.09 7312,o4 7378.o8 7445.03 7512.49 7543.91 7599.97 7622.72 7645.49 7666.83 7687.91 7727.29 7791.51 7853.15 7914.o6 7975.98 8097,94 8118.o4 8154.86 Last Survey Station Projected Survey 4 October, 2000 - 23:04 - 5- DrillQuest 1.05.05 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API.500292195801 Surveyed: 11 August, 2000 North Slope Alaska The Bottom Hole Displacement is 8154.86ft., in the Direction of 314.273° (True). Comments Measured Station Coordinates Depth TVD Northings Eastings Comment (ft) (ft) (ft) (ft) 5261.73 4093.66 1900.54 N 2132.91 W Tie-on Survey to GCT survey 5272.00 4100.15 1905.66 N 2139.01 W Window Point 12394.67 8856.86 5673.79 N 5806.10 W Last Survey Station 12455.00 8903.71 5692.73 N 5839.05 W Projected Survey Survey tool program From To Measured Vertical Measured Vertical Depth Depth Depth Depth (ft) (ft) (fi) (ft) 0.00 0.00 5296.15 4115.26 5296.15 4115.26 12455.00 8903.71 Survey Tool Description AK-1 BP_HG - BP High Accuracy Gyro MWD Magnetic Alaska State Plane 4 PBU_EOA DS 11 DrillQuest 1.05.05 4 October, 2000 - 23:04 - 6 - 05-Sep-O0 AOGCC Lori Taylor 3001 PorcUpine Drive Anchorage, AK 99501 MWD + IFR (Definitive) Re: Distribution of Survey Data for Well 11-28A Dear Lori Taylor: Enclosed are two survey hard copies. Tie-on Survey: Window /Kickoff Survey Projected Survey: 5,261.73' MD 5,272.00' MD 12,455.00' MD (if applicable) Please call me at 273-3545 if you have any questions or concerns. Regards, Kenneth W. Allen Survey Manager Attachment(s) North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 11-28A Surveyed: 22 August, 2000 ORIGINAL SURVEY REPORT 1 September, 2000 Your Ref: API-500292195801 Surface Coordinates: 5952460.80 N, 707240.21 E (70° 16' 24.7802" N, 148° 19' 24.8335" W) Kelly Bushing: 56.28ft above Mean Sea Level OlqlL. I_iN'H RECEIVED SEP 0 8 Alaska Oil & Gas Co~,s. Com~:ission Anchorage Survey Ref: evy9955 Sperry-Sun Drilling Services Survey Report for 11-28A Your Ref: AP1.500292195801 SurveyS: 22 Augumt, 2000 North Slope Alaska Measured Depth (fi) Incl. 5261.73 50.800 5272.00 50.820 5296.15 51.69o 5328.18 52.990 5359.99 53.190 5390.80 52.920 5420.92 52.660 5451.24 52.520 5483.36 52.19o 5515.57 51.680 5545,30 51.49o 5576.08 51.420 5607.76 51.160 5639.06 51.23o 5668.76 51,240 57o0.81 51.51o 5732.97 51.51o 5763.40 51.88o 5793.28 51.810 5825.11 51,970 5886,71 51.080 5978.85 50.530 6071.63 49.970 6163.45 50,360 6258.72 49.580 Azim. Sub-Sea Vertical Local Coordinates Depth Depth Northinga Eaatlnge (ft) (ft) (fi) (fi) 309.988 4037.38 4093.66 1900.54N 2132.91W 309.990 4043.87 4100.15 1905,66N 2139.01W 309.990 4058,98 4115.26 1917.76 N 2153.44W 312,590 4078.56 4134.84 1934.50N 2172.49W 315,640 4097.66 4153.94 1952.20 N 2190.74W 318,590 4116.18 4172.46 1970.24 N 2207,50W 321.470 4134.40 4190.68 1988.62 N 2222,91W 324.380 4152,82 4209.10 2007.83N 2237.42W 326.490 4172.44 4228.72 2028.77N 2251.85W 327.690 4192.30 4248.58 2050.06N 2265.63W 327.100 4210.77 4267.05 2069.68N 2278.18W 327.070 4229.95 4286.23 2089.89 N 2291.26W 328.170 4249.77 4306.05 2110.76N 2304.50W 327.740 4269,38 4325.66 2131.44N 2317.44W 327.670 4287.98 4344.26 2151.01N 2329.82W 326.700 4307.98 4364.26 2172.06 N 2343.39W 324.200 4328.00 4384,28 2192.79 N 2357.66W 323.900 4346.86 4403.14 2212.12 N 2371.68W 322.820 4365.32 4421.60 2230.97N 2385.70W 322,920 4384.97 4441.25 2250.94 N 2400.82W 321.900 4423.29 4479.57 2289.15 N 2430.23W 321.560 4481.52 4537.80 2345.21N 2474.46W 325.000 4540.86 4597,14 2402.37 N 2517.11W 322.910 4599.68 4655.96 2459.37N 2558.59W 321.630 4660.96 4717.24 2517.07N 2603.23W Alaska State Plane 4 PBU_EOA DS 11 Global Coordinates Dogleg Vertical Northlnga Eaetlngs Rate Section (ft) (ft) (o/lOOft) (ft) 5954301.88 N 705055.77 E 2854.19 5954306.83 N 705049.53 E 0.195 2862.13 5954318.53 N 705034.77 E 3.602 2880.92 5954334.73 N 705015.27 E 7,600 2906.24 5954351.92 N 704996.53 E 7,692 2931.67 5954369.49 N 704979.29 E 7.702 2956.26 5954387.44N 704963.38 E 7.664 2980.11 5954406.25 N 704948.34E 7.637 3003.91 5954426.78 N 704933.34 E 5.302 3028.85 59~r-'~4~7.68 N 704918.98 E 3.333 3053.57 5954466.95 N 704905.89 E 1.681 3076.24 5954486.80 N 704892.26 E 0.240 3099.70 5954507.30 N 704878.45 E 2,831 3123,74 5954527.61N 704864.95 E 1.094 3147.43 5954546.84 N 704852.04 E 0.187 3169.95 5954567.50 N 704837.89 E 2.510 3194.34 5954587.83 N 704823.06 E 6.084 3219.02 5954606.76 N 704808.51 E 1.441 3242.54 5954625.22 N 704793.97 E 2.852 3265.74 5954644.77 N 704778.31E 0.560 3290.49 5954682.16 N 704747.86 E 1.941 3338.22 5954736.98 N 704702.10 E 0.662 3409,00 5954792.94 N 704657.90 E 2,914 3479,41 5954848,78 N 704614.86 E 1.799 3548.89 5954905.22 N 704568.65 E 1.315 3621.10 RECEIVED -2- Comment Tie-on Io GCT gyro Window Point AK-6 BP,.IFR-AK Continued.., ..................................... DrlllOuest 1.05.04e September, 2000- 7:09 Sperry-Sun Drilling Services Survey Report for 11-28A Your Ref: API.500292195801 Surveyed: 22 August, 2000 North Slope Alaska Measured Depth (ft) Incl. Azim. 6350.20 49.510 321.740 6442.56 49.250 321.970 6532.77 48.460 319.240 6629.83 48.890 317.920 6726.19 48.330 316.780 6819.56 48.890 313.780 6912.11 49.140 311.240 7003.88 48.890 311.740 7100,57 48.850 311.300 7198.93 49.540 311.790 7289.67 48.690 314.060 7382.25 48.990 313.880 7475.80 49.750 314.310 7566.68 48.090 314.390 7662.51 47.110 317.770 7755.94 46.570 319.300 7849.31 46.470 318.370 7943.77 46.880 319.080 8036.63 47.370 318.880 8131.54 47,570 318.140 8224.01 48.790 317.180 8317.87 49.650 318.060 8410.11 48.490 315.050 8504.90 49.960 315.030 8597.42 47.590 315.280 Sub-Sea Depth (fi) Vertical Local Coordinates Global Coordinates Depth Northings Eestlngs Northings Eestings (~) (fi) (~) (ft) (~) 4720.32 4776.60 2571,69 N 2646.38W 4780.45 4836.73 2626.82N 2689.69W 4839.81 4896.09 2679.31N 2732.78W 4903.90 4960.18 2733.97 N 2781.01W 4967.61 5023.89 2787.14 N 2829.98W 5029.36 5085.64 2836.90 N 2879.26W 5090.06 5146.34 2884.09N 2930.76W 5150.25 5206.53 2929,99 N 2982.65W 5213.85 5270.13 2978.27N 3037.18W 5278.13 5334.41 3027.64N 3092.90W 5337.52 5393.80 3074.35 N 3143.13W 5398.46 5454.74 3122.74N 3193,30W 5459.37 5515.65 3172.15 N 3244.29W 5519.09 5575.37 3220.03 N 3293.27W 5583.72 5640.00 3270.98 N 3342.36W 5647.63 5703.91 3322.05 N 3387,48W 5711.88 5768.16 3373.05 N 3432.08W 5776.69 5832.97 3424.69 N 3477.41W 5839.87 5896.15 3476:04N 3522.07W 5904.03 5960.31 3528.43 N 3568.41W 5965.69 6021.97 3579.36 N 3614.82W 6026.99 6083.27 3631.86 N 3662.73W 6087.43 6143.71 3682.45 N 3710.63W 6149.33 6205.61 3733.25 N 3761.35W 6210.30 6266.58 3782.58 N 3810.42W Alaska State Plane 4 PBU_EOA DS 11 5954958.63 N 704524.01 E 5955012.55 N 704479.20 E 5955063.84 N 704434,68 E 5955117.14 N 704384.97 E 5955168.94 N 704334.55 E 5955217.33 N 704283.91 E 5955263.09 N 704231.13 E 5955307.54 N 704178.00 E 5955354.29 N 704122.16 E 5955402.12 N 704065.10 E 5955447.42 N 704013.60 E 5955494.42 N 703962.12 E 5955542.40 N 703909.79 E 5955588.92 N 703859.51 E 5955638.49 N 703809.04 E 5955688.30 N 703762.52 E 5955738.05 N 703716.54 E 5955788.43 N 703669.81 E 5955838.52 N 703623.74 E 5955889.61 N 703575.98 E 5955939.25 N 703528.18 E 5955990.41 N 703478.85 E 5956039.67 N 703429.58 E 5956089.04 N 703377.48 E 5956137.01 N 703327.07 E Dogleg Vertical Rate Section (°ll00ft) (fi) 0.119 3690.11 0.339 3759.58 2.441 3827.07 1.113 3899.74 1.061 3971.92 2.484 4041.94 2.089 4111.76 0.493 4180,96 0.345 4253.71 0.796 4328.09 2.110 4396,67 0.356 4466.37 0.884 4537.36 1.828 4605.87 2.798 4676.57 1.327 4744.52 0.731 4812.04 0.698 4880,54 0.551 4948.35 0.612 5018.09 1.529 5086.87 1.159 5157.81 2.767 5227.42 1.551 5299.20 2.570 5368.77 RECEIVED Comment Continued... I September, 2000- 7:09 -3- Alask= 0[! & G~.s Co~,s. Commission DrlllQuest 1.05.04e Sperry-Sun Drilling Services Survey Report for 11-28A Your Ref: API-500292195801 Surveyed: 22 August, 2000 North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 Measured Depth (fi) Incl. Azlm. Sub-Sea Depth (ft) Vertical Local Coordinatea Global Coordinates Depth Northinga Fastings Northinge Fastings ffi) ffi) (~) ffi) Dogleg Vertical Rate Section (°/100ft) (fi) Comment 8689.60 48.230 314.880 6272.09 6328.37 8782.59 48.420 314.940 6333.92 6390.20 8874.38 48.270 313.840 6394.93 6451.21 8970.03 47.610 314.750 6459.01 6515.29 9063.79 46.570 316.410 6522.84 6579.12 9157.25 46.990 315.870 6586.84 6643.12 9247.10 47.190 316.160 6648.02 6704.30 9343.65 47.290 316.990 6713.57 6769.85 9437.31 47.310 316.530 6777.09 6833.37 9530.87 47.460 316.030 6840.43 6896.71 9623.23 47.340 314.680 6902.95 6959.23 9716.80 47.270 315.050 6966.40 7022.68 9809.82 47.430 316.690 7029.43 7085.71 9901.14 47.470 316.220 7091.18 7147.46 9996.02 47.160 315.810 7155.51 7211.79 10090.37 47.120 314.840 7219.68 7275.96 10181.13 47.570 317.300 7281.19 7337.47 10277,01 47.580 318.210 7345.87 7402.15 10369.31 47.290 316.700 7408.31 7464.59 10460.52 47.210 314.150 7470.23 7526.51 10557.36 48.560 316.750 7535.17 7591.45 10648.93 50.350 320.650 7594.71 7650.99 10745.59 50.480 319.400 7656.30 7712.58 10838.19 50.220 319.070 7715.39 7771.67 10932.50 50.330 316.770 7775.67 7831.95 3831.02N 3858.72W 5956164.10 N 703277.45 E 3880.05 N 3907.91W 5956231.76 N 703226.93 E 3928.03N 3956.92W 5956278.37 N 703176.62 E 3977.62 N 4007.75W 5956326.54 N 703124.44E 4026.65 N 4055.81W 5956374.23 N 703075.04E 4075.76 N 4103.01W 5956422.02 N 703026.52 E 4123.11N 4146,71W 5956468.09 N 702979.53 E 4174.59N 4197.43W 5956518.22 N 702929.40 E 4224.74N 4244.59W 5956567.04N 702880.88 E 4274.50 N 4292.17W 5956615.47 N 702831.95 E 4322.87N 4339.95W 5956662.51N 702782.86 E 4371.38 N 4388.69W 5956709.66 N 702732.80 E 4420.49 N 4436.32W 5956757.43 N 702683.83 E 4469.25 N 4482.67W 5956804.90 N 702636.16 E 4519.43N 4531.11W 5956853.73 N 702586.36 E 4568.61N 4579.73W 5956901.55 N 702536.40 E 4616.68 N 4626.03W 5956948.33 N 702488.80 E 4669.07N 4673.61W 5956999.39 N 702439.79 E 4719.15 N 4719.57W 5957048.19 N 702392.47 E 4766.86 N 4766.57W 5957094.58 N 702344.17 E 4818.05 N 4816.94W 5957144.37 N 702292.41 E 4870.33 N 4862.83W 5957195.36 N 702245.10 E 4927.41N 4910.68W 5957251.11N 702195.69 E 4981.41N 4957.24W 5957303.80 N 702147.67 E 5035.24 N 5005.84W 5957356.27 N 702097.59 E 0.765 5437.16 0.210 5506.61 0.910 5575.19 0.987 5646.21 1.706 5714.85 0.616 5782.92 0.325 5848.69 0.640 5919.51 0.362 5988.27 0.425 6057.08 1.084 6125.05 0.300 6193.81 1.308 6262.20 0.382 6329.42 0.456 6399.12 0.755 6468.27 2.054 6534.97 0.701 6605.60 1.245 6673.47 2.055 6740.42 2.431 6812.22 3.780 6881.56 1.006 6955.66 0.393 7026,67 1.879 7099.05 R[C[IV[D SEP 0 ~ ~ ! ~ ? .! Continued... G~3 L,u,~S.-~-C .....L.:,tO.. DrlllOueet 1.05.04e Anchorage I September, 2000 - 7:09 - 4 ' Sperry-Sun Drilling Services Survey Report for 11-28A Your Ref: API.500292195801 Surveyed: 22 August, 2000 North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 Measured Sub-Sea Vertical Depth Incl, Azim. Depth Depth (ft) (fi) (ft) Local Coordinates Northlnga Ee~tlnga (fi) (ft) Global Coordinates Northlng$ Eaatlngs (ft) (ft) Dogleg Vertical Rate Section (o/lOOft) (fi) Comment 11023.82 50.500 316.620 7833.86 7890.14 11120.15 49.830 317.340 7895.57 7951.85 11211.57 46.740 318.820 7956.40 8012.68 11304.00 45.230 318.360 8020.62 8076.90 11398.42 45.480 317.930 8086.97 8143.25 11492,40 46.490 317.55o 8152.27 8208.55 11535.74 46.850 317.000 8182.01 8238.29 11642.82 47.640 310.090 8254.75 8311.03 11674.20 46.470 3o3.810 8276.14 8332.42 11704.81 44.720 299.550 8297.56 8353.84 11735.75 45.580 296.980 8319.38 8375.66 11793.74 45.13o 296.810 8360.14 8416.42 11889.75 43.61o 299.040 8428.77 8485.05 11983.76 42.820 297.310 8497.28 8553.56 12076.74 44.16o 295.51o 8564.74 8621.02 1217o.88 43.220 297.160 8632.81 8689.09 12265.47 41.770 298.210 8702.56 8758.84 12362.02 4o. 180 298.660 8775.45 8831.73 12394.67 39.050 299.970 8800.60 8856.88 12455.00 39.050 299.970 8847.46 8903.74 5086.46 N 5054.12W 5957406.14 N 702047.93 E 5140.54N 5104.58W 5957458.81N 701995.99 E 5191.29 N 5150,18W 5957508.29 N 701949.01E 5241.15 N 5194.15W 5957558.91N 701903.69 E 5291.18 N 5238.97W 5957605.70 N 701857.51E 5341.20 N 5264.42W 5957654.44 N 701810.70 E 5364.36 N 5305.81W 5957677.00 N 701788.68 E 5418.44N 5362.76W 5957729.50 N 701730.26 E 5432.24 N 5381.09W 5957742.79 N 701711.56 E 5443.73N 5399.68W 5957753.76 N 701692.66 E 5454.12 N 5419.00W 5957763.61N 701673.06 E 5472.78 N 5455.80W 5957781.25 N 701635.76 E 5504.20 N 5515.12W 5957811.03 N 701575.60 E 5534.60N 5571.85W 5957839.85 N 701518.05 E 5563.05 N ~ 5629.17W 5957866.71N 701459.98 E 5591.89 N 5687.44W 5957893.93 N 701400.93E 5621.56 N 5744.03W 5957922.04 N 701343.55 E 565111N 5799.70W 5957950.64 N 701287.06 E 5661.90 N 5817.85W 5957960.33 N 701268.64 E 5680.88 N 5850.78W 5957978.40 N 701235.20 E 0.225 7169.35 0.902 7243.23 3.589 7311.31 1.672 7377.58 0.418 7444.59 1.113 7512.04 1.242 7543.52 4.794 7622.05 15.112 7644.82 11.467 7666.16 6.511 7687.25 0.804 7726.65 2.268 7791.10 1.515 7852.98 1.963 7913.92 1.569 7975.82 1.706 8037.09 1.675 8098,03 4.304 8118.15 0.000 8155.00 Lasl Survey Projected Survey All data is in feet unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Magnetic Declination at Surface is 27.213° (30-Aug-00) The Dogleg Severity is in Degrees per 100ft. Vertical .Section is from Well Reference and calculated along an Azimuth of 314.156° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 12455.00ft., RECEIVED SEP O,O ,., .,~,.- ..¢_,,,--.,= r'.r~;-,',,;-,ic-Sir',~' /.nchoFage 1 September, 2000 - 7:09 ' $' DrlllQueet 1.05.04e Sperry-Sun Drilling Services Survey Report for 11-28A Your Ref: API.500292195801 Surveyed: 22 August, 2000 North Slope Alaska The Bottom Hole Displacement is 8155.00ft., in the Direction of 314.156° (True). Comments Meaaured Station Coordinates Depth TVD Northlngs Eeetlnge Comment (fi) (~t) (~t) (ft) 5261.73 4093.66 1900.54 N 2132.91 W Tie-on to GCT gyro 5272.00 4100~15 1905.66 N 2139.01 W Window Point 12394.67 6856.88 5661.90 N 5817.85 W Last Survey 12455.00 8903.74 5680.88 N 5850.78 W Projected Survey Alaska State Plane 4 PBU_EOA DS 11 Survey tool program From To Meaaured Vertical Measured Vertical Depth Depth Depth Depth (~t) (~t) (ft) (~t) 0.00 0o00 5296.15 4115.26 5296.15 4115.26 12455.00 8903.74 Survey Tool Description AK-1 BP_HG - BP High Accuracy Gyro AK-6 BP_IFR-AK ~ I September, 2000 - 7:09 -6- RECEIVED DrlllOuee! 1.05.04e 05-Sep-00 AOGCC Lori Taylor 3001 Pomupine Drive Anchorage, AK 99501 MWD Re: Distribution of Survey Data for Well 11-28A Dear Lori Taylor: Enclosed are two survey hard copies. Tie-on Survey: Window / Kickoff Survey Projected Survey: 5,261.73' MD 5,272.00' MD 12,455.00' MD (if applicable) Please call me at 273-3545 if you have any questions or concerns. Regards, Kenneth W. Allen Survey Manager SEP 0 8 '2000 Alaska 0il & Gas Cons. Commission Anchorage Attachment(s) North Slope Alaska Alaska State Plane 4 PBU_EOA DS 11 11-28A MWD Surveyed: 11 August, 2000 ORIGINAL SURVEY REPORT 1 September, 2000 Your Ref: API.500292195801 Surface Coordinates: 5952460:80 N, 707240.21 E (70° 16' 24.7802" N, 148° 19' 24.8335" W) Kelly Bushing: 56.281t above Mean Sea Level ~Olq i L. i_ !N I~ IMIqVICM== RECEIVED SEP 0 8 2000 Alaska Oil & Gas Co.qs. Commission Anchorage Survey Ref: svy9951 Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API-500292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Depth (It) Incl. Sub-Sea Depth (It) 5261.72 50.800 309.988 4037.37 5272.00 50,820 309.990 4043.87 5296.15 51.690 309,990 4058.98 5328.18 52.990 312,590 4078.56 5359.99 53.190 315.640 4097.66 5390.80 52,920 318.590 4116.18 5420.92 52,660 321.470 4134,40 5451.24 52.520 322.780 4152.82 5483.36 52.180 324.040 4172.44 5515.57 51.680 327.400 4192.31 5545.30 51.490 327.570 4210.78 5576.08 51,420 325,640 4229.96 5607.76 51,160 324.420 4249.77 5639.06 51.230 325.110 4269.39 5668.76 51.240 328.860 4287,99 5700.81 51.510 324,300 4308.00 5732.97 51.510 325,160 4328.02 5763.40 51.880 322.380 4346.88 5793.28 51,810 320,700 4365.34 5825.11 51.970 323.700 4384.99 5886.71 51.090 319,050 4423.32 5978,85 50.530 317.790 4481.55 6071.63 49.970 323,850 4540.91 6163.45 50,360 322,870 4599.72 6258.72 49.580 320.370 4661.01 Vertical Local Coordinates Global Coordinates Depth Northings Esstings Northings Eastings (It) (It) (~t) (It) (~t) 4093.65 1900.54 N 2132.91W 5954301.88 N 705055.77 4100.15 1905.66 N 2139.01W 5954306.83 N 705049.53 4115.26 1917.76 N 2153,44W 5954318.53 N 705034.77 4134.84 1934.50 N 2172.49W 5954334.73 N 705015.27 '4153.94 1952.20 N 2190.74W 5954351.92 N 704996.53 4172.46 1970.24 N 2207.50W 5954369.49 N 704979.29 4190.68 1988.62 N 2222.91W 5954387.44N 704963.38 4209.10 2007.62 N 2237.69W 5954406.04N 704948.08 4228,72 2028.04N 2252.85W 5954426.03 N 704932.36 4248.59 2048.99 N 2267.13W 595~446.58 N 704917.51 4267.06 2068.63 N 2279.65W 5954465.87 N 704904.45 4286,24 2088.73 N 2292.90W 5954465.59 N 704890.65 4306.05 2108.99 N 2307.07W 5954505.45N 704875.93 4325.67 2128.91N 2321.14W 5954524.98 N 704861.32 4344.27 2148.32 N 2333.76W 5954544.04 N 704848.17 4354.28 2169.21N 2347.54W 5954564.54N 704833.82 4384.30 2189.76 N 2362.08W 5954584.68 N 704818.72 4403.16 2209.02N 2376.19W 5954603.54 N 704804.09 4421.62 2227.42N 2390.80W 5954621.53 N 704788.97 4441.27 2247.20 N 2406.15W 5954640.88 N 704773.09 4479.60 2284.87 N 2436.23W 5954677.71N 704741.98 4537.83 2338.29 N 2483.62W 5954729.80 N 704693.14 45:97.19 2393.53 N 2528.66W 5954783.78N 704646.59 4656.00 2450.10 N 2570.74W 5954839.17 N 704602.97 4717.29 2507.28 N 2616.01W 5954895.09 N 704556.14 Alaska State Plane 4 PBU_EOA DS 11 Dogleg Vertical Rate Section (°/lOOIt) (fi) Comment E 2853.93 E 0.195 2861.88 E 3.602 2880.66 E 7.600 2905,98 E 7.692 2931.41 E 7.702 2956,00 E 7,664 2979.86 E 3.463 3003.72 E 3.281 3028.82 E 8.357 3053.67 E 0,780 3076.35 E 4,909 3099.86 E 3.115 3124.15 E 1,732 3148.13 E 9,844 3170.72 E 11.146 3195,17 E 2,093 3219.92 E 7,271 3243.47 E 4.427 3266.78 E 7,433 3291,58 E 6.080 3339.41 E 1.222 3410.63 E 5.057 3481.44 E 0.923 3551.06 E 2,170 3623.40 RECEIVED Tie-on Survey to GCT survey Window Point MWD Magnetic 08 '2 00 Continued... 1 September, 2000 - 7:11 -2- DrillQuest 1.05.04e Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref : API.500292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Depth (fi) Incl. 6350.20 49.510 6442.56 49.250 6532.77 48.450 6629.83 48.890 6726.19 48,330 6819.56 48.890 6912.11 49.140 7003.88 48.890 7100.57 48.850 7198.93 49.540 7289.67 48.690 7382.25 48.990 7475.80 49.750 7566.68 48.090 7662.51 47.110 7755.94 46.570 7849.31 46.470 7943.77 46.880 8036.63 47.370 8131.54 47.510 8224.01 48.790 8317.87 49.650 8410.11 48.490 8504.90 49.960 8597.42 47.590 Azim. 323.860 322.390 318.720 318.850 320.130 315.150 311.440 313.230 313.020 312.330 312.920 311.900 312.540 314.570 318.760 317.810 320.290 318.340 318.110 320.020 317.550 319.520 315.870 318.290 315.310 Sub-Sea Depth (fi) 4720.37 4780.51 4839.88 4903.98 4967.69 5029.44 5090.16 5150.35 5213.95 5278.22 5337.62 5398.55 5459.47 5519.19 5583.82 5547.73 5711.98 5776.80 5839.98 5904.18 5965.88 6027.19 6087.63 6149.54 6210.51 Vertical Local Coordinates Global Coordinates Depth Northings Eastinge Northlng$ Eestings (~t) (~t) (~t) (~t) (~t) 4776.65 2562.20 N 2658.75W 5954948.81N 70451'1.91E 4836.79 2618.28 N 2700.81W 5955003.71N 704468.31E 4896.16 2670.73 N 2743.95W 5955054.95 N 704423.75 E 4960.26 2725.56 N 2791.97W 5955108.43N 704374.24 E 5023.97 2780.51N 2838.93W 5955162.08 N 704325.78 E 5085.72 2832.24 N 2886.11W 5955212.48N 704277.20 E 5146.44 2880.13 N 2936.94W 5955258.95N 704225.06 E 5206.63 2926.78 N 2988.15W 5955304.17 N 704172.59 E 5270.23 2976.56 N 3041.31W 5955352.48N 704118.08E 5334.50 3027.03 N 3096.04W 5955401.41N 704061.98 E 5393.90 3073.48 N 3146.52W 5955446.46 N 704010.24 E 5454.83 3120.49 N 3197.98W 5955492.03N 703957.50E 5515.75 3188.20 N 3250.56W 5955538.27 N 703903.63 E 5575.47 3215.38 N 3300.21W 5955554.08 N 703852.70E 5640.10 3266.82 N 3348.77W 5955634.15 N 703802.74E 5704.01 3317.69 N 3394.12W 5955683.76 N 703756.01E 5768.26 3368.85 N 3438.51W 5955733.68 N 703710.22 E 5833.08 3420.95 N 3483.31W 5955784.53 N 703664.01 E 5896.26 3471.70 N 3528.65W 5955834.01N 703617.29 E 5960.46 3524.51N 3574.44W 5955885.54N 703570.06 E 6022.16 3576.31N 3619.83W 5955936.06 N 703523.26 E 6083.47 3629.57N 3666.88W 5955988.01N 703474.76E 6143.91 3681.10 N 3713.76W 5956038.23 N 703426.48 E 6205.82 3733.67N 3762.62W 5956089.44N 703376.19 E 6266.79 3754.41N 3810.22W 5956138.84N 703327.21 E Alaska State Plane 4 PBU_EOA DS 11 Dogleg Rate (°ll00ft) Vertical Section (ft) Comment 2.904 1.240 3.189 0.464 1.154 4.o46 3.o38 1.497 o.169 0.880 1.o58 o.891 0.964 2.484 3.386 0.940 1.93o 1.563 0.558 1.49o 2.424 1.834 3.243 2.478 3.525 3692.34 3761.61 3829.1o 39Ol.76 3973.75 4043.64 4113.47 4182.7o 4255.51 4329.93 4398.51 4468.17 4539.12 46o7.61 4678.28 4746.27 4813.77 4882.22 495O.ll 5o19.76 5088.42 5159.29 5228.83 530o.51 537O.Ol RECEIVED SEP 08, Continued... 1 September, 2000- 7:11 -3- Alaska Oil & Gas Cons. Commission Anchorage DrillQuest 1.05.04e Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API.500292195801 Surveyed: 11 August, 2000 North Slope Alaska Meaeured Depth (fi) Incl. Azim. Sub-Sea Depth 8689.60 48.230 317.800 6272.30 8782.59 48.420 316.350 6334.14 8874.38 48.270 316.640 6395.14 8970.03 47.610 318.300 6459.22 9063.79 46.570 314.120 6523.07 9157.25 46.990 313.880 6587.07 9247.1o 47.190 318.540 6648.27 9343.65 47.290 316.860 6713.82 9437.31 47.310 315.640 6777.34 9530.87 47.460 314.890 6840.68 9623.23 47.340 313.310 6903.20 9716.8o 47.270 317.790 6966.67 9809.82 47.430 318.770 7029.69 9901.14 47.470 314.900 7091.46 9996.02 47.160 315.410 7155.79 10090.37 47.120 313.960 7219.97 10181.13 47.570 318.750 7281.48 lO277.01 47.580 316.460 7346.17 10369.31 47.290 315.260 7408.60 10460.52 47.210 313.100 7470.52 10557.36 48.560 319.140 7535.50 10648.93 50.350 321.370 7595.02 10745.59 50.480 318.200 7656.63 10838.19 50.220 318.230 7715.71 10932.50 50.330 316.180 7775.99 Vertical Local Coordinatee Global Coordinates Depth Northings Faetinge Northinge Fastings (ft) (ft) (ft) (ft) (ft) 6328.58 3834.07 N 3857.25 W 5956187.19 N 703278.84 E 6390.42 3864.93 N 3904.55 W 5956236.72 N 703230.15 E 6451.42 3934.67 N 3951.76 W 5956285.15 N 703181.59 E 6515.50 3986.99 N 3999.77 W 5956336.13 N 703132.16 E 6579.35 4036.56 N 4047.25 W 5956384.37 N 703083.33 E 6643.35 4083.87 N 4096.24 W 5956430.31 N 703033.05 E 6704.55 4131.35 N 4141.76 W 5956476.52 N 702986.25 E 6770.10 4183.78 N 4189.46 W 5956527.62 N 702937.12 E 6833.62 4233.58 N 4236.97 W 5956576.09 N 702888.25 E 6896.96 4282.58 N 4285.35 W 5956623.74 N 702838.55 E 6959.48 4329.89 N 4334.17 W 5956669.68 N 702788.44 E 7022.95 4378.96 N 4382.30 W 5956717.41 N 702738.97 E 7085.97 4430.02 N 4427.83 W 5956767.20 N 702692.06 E 7147.74 4479.07 N 4473.84 W 5956814.97 N 702644.72 E 7212.07 4528.52 N 4523.02 W 5956863.04 N 702594.19 E 7276.25 4577.15 N 4572.19 W 5956910.30 N 702543.70 E 7337.76 4625.44 N 4618.23 W 5956957.30 N 702496.35 E 7402.45 4677.70 N 4665.94 W 5957008.23 N 702447.22 E 7464.88 4726.48 N 4713.28 W 5957055.69 N 702398.55 E 7526.80 4773.16 N 4761.31 W 5957101.02 N 702349.26 E 7591.78 4824.92 N 4811.03 W 5957151.39 N 702298.13 E 7651.30 4878.42 N 4655.50 W 5957203.65 N 702252.21 E 7712.91 4935.29 N 4903.58 W 5957259.18 N 702202.57 E 7771.99 4988.46 N 4951.09 W 5957311.01 N 702153.61 E 7832.27 5041.68 N 5000.37 W 5957362.86 N 702102.89 E Dogleg Rate (°/lOOff) 2.121 1.182 0.287 1.462 3.448 0.487 3.805 1.282 0.801 0.764 1.266 3.519 0.794 3.122 0.513 1.127 3.912 1.763 1.008 1.741 4.831 2.692 2.531 0.282 1.676 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) Comment 5438.35 5507.72 5576.25 5647.15 5715.75 5783.86 5849.60 5920.35 5989.14 6057.98 6125.96 6194.68 6262.93 6330.11 6399.85 6469.00 6535.67 6606.31 6674.27 6741.23 6812.97 6882.16 6956.29 7027.42 7099.85 RECEIVED SEP 08 Continued... DrillQuest 1.05.04e I September, 20O0. ?: 11 .4- Alaska Oil & Gas Cons. Commission Anchorage Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API-500292195801 Surveyed: 11 August, 2000 North Slope Alaska Measured Sub-Sea Depth Incl. Azlm. Depth (.) Vertical Local Coordinates Global Coordinates Depth Northings Eastinga Northings Eastlngs (ft) (~t) (~t) (~t) (~t) 11023.82 50.500 316.100 7834.18 7890.46 5092.42 N 5049.13 W 5957412.24 N 702052.75 E 11120.15 49.830 317.680 7895.89 7952.17 5146.42 N 5099.69 W 5957464.82 N 702000.73 E 11211.57 46.740 320.960 7956.73 8013.01 5198.12 N 5144.19 W 5957515.28 N 701954.82 E 11304.00 45.230 320.570 8020.95 8077.23 5249.60 N 5186.23 W 5957565.59 N 701911.38 E 11398.42 45.480 316.920 8087.31 8143.59 5300.09 N 5230.51 W 5957614.83 N 701865.72 E 11492.40 46.490 318.610 8152.61 8208.89 5350.13 N 5275.93 W 5957663.60 N 701818.94 E 11535.74 46.850 319.210 8182.35 8238.63 5373.89 N 5296.65 W 5957686.78 N 701797.57 E 11612.08 47.990 317.660 8234.01 8290.29 5415.94 N 5333.95 W 5957727.79 N 701759.13 E 11642.82 47.640 310.060 8254.67 8310.95 5431.70 N 5350.35 W 5957743.10 N 701742.31 E 11674.20 46.470 304.030 8276.06 8332.34 5445.54 N 5368.66 W 5957756.42 N 701723.62 E '11704.81 44,720 299.500 8297,48 8353.76 5457.06 N 5387.23 W 5957767.42 N 701704.74 E 11735.75 45.580 297.130 8319.30 8375.58 5467.45 N 5406.54 W 5957777.29 N 701685.15 E 11793.74 45.130 296.720 8360.05 8416.33 5486.14 N 5443.33 W 5957794.95 N 701647.86 E 11889.75 43.610 297.950 8428.68 8464.96 5516.96 N 5502.97 W 5957824.11 N 701587.39 E 11983.76 42.820 297.060 8497.20 8553.48 5546.69 N 5550.06 W 5957852.26 N 701529.50 E 12076.74 44.160 295.850 8564.65 8620.93 5575,19 N 5617.35 W 5957879.17 N 701471.45 E 12170.88 43.220 297,160 8632.73 8689.01 5604.20 N 5675.55 W 5957906.57 N 701412.48 E 12362.02 40.180 298.620 8775.42 8831.70 5663.63 N ~ 5787.93 W 5957962.88 N 701298.50 E 12394.67 39.050 299.880 8800.58 8856.86 5673.79 N 5806.10 W 5957972.54 N 701280.06 E 12455.00 39.050 299.880 8847.43 8903.71 5692.73 N 5839.05 W 5957990.56 N 701246.60 E Alaska State Plane 4 PBU_EOA DS 11 Dogleg Vertical Rate Section (°/100fi) (ft) 0.198 7170.20 1.439 7244.09 4.312 7312.04 1.662 7378.08 2.763 7445.03 1.681 7512.49 1.305 7543.91 2.113 7599.97 18.349 7622.72 14.548 7645.49 12.017 7666.83 6.100 7687.91 0.925 7727.29 1.819 7791.51 1.061 7853.15 1.697 7914.06 1.386 7975.98 1.670 8097.94 4.246 8118.04 0.000 8154.86 Comment Last Survey Station Projected Survey All data is in feet unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Magnetic Declination at Surface is 27.213° (30-Aug-00) The Dogleg Severity is in Degrees per lOOft. Vertical Section is from Well Reference and calculated along an Azimuth of 314.273° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 12455.00ft., RECEIVED AlaSka UiI & GS~.S t,u:;.~. ~uu~ ......... Anchorage Dr/I/Quest 1,05.04e 1 September, 2000.7:11 - 5 - Sperry-Sun Drilling Services Survey Report for 11-28A MWD Your Ref: API.500292195801 Surveyed: 11 August, 2000 North Slope Alaska The Bottom Hole Displacement is 8154.86ft., in the Direction of 314.273° (True). Comments Measured Station Coordinates Depth TVD Northings Eastlngs Comment (~t) (~t) (~t) (fi) 5261,73 4093.66 1900.54 N 2132.91 W Tie-on Suwey to GCT survey 5272.00 4100.15 1905.66 N 2139.01 W Window Point 12394.67 8856.86 5673.79 N 5806.10 W Last Suwey Station 12455.00 8903.71 5692.73 N 5839.05 W Projected Suwey Alaska State Plane 4 PBU_EOA DS 11 Survey tool program From To Measured Vertical Measured Verti¢=al Depth Depth Depth Depth (~t) (~t) (~t) (fi) 0.00 0.00 5296.15 4115.26 5296.15 4115.26 12455.00 8903.71 Survey Tool Description AK-1 BP_HG - BP High Accuracy Gyro MWD Magnetic RE£E VED Alaska DrillQuest 1.05.04e September, 2000 - 7:1 ! - 6 - Af~rjhO~.~-t,3e MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Dan Seamount Commissioner DATE: August 8, 2000 SUBJECT: THRU: Blair Wondzell P.I. Supervisor FROM: Chuck Scheve~ ~ ~ · Petroleum Inspector NON- CONFIDENTIAL Blowout Preventer Test Nabors 7ES BPX DS11-28A 200-095 WMRU Operator Rep.: Dan Jackson Contractor Rep.' Richard Larkin Op..phone: 659-4144 Op. E-Mail: Rig phone: Rig E-Mail: Test Pressures Rams: 250/3500 Annular: 250~3500 MISC. INSPECTIONS: P/F Choke: 250/3500 TEST DATA FLOOR VALVES: MUD SYSTEM: Visual Alarm P/F Quantity P/F Trip Tank P P P Upper Kelly 1 P Pit Level Indicators P P P Lower Kelly 1 P Flow Indicator P P P - Ball Type 2 P Meth Gas Detector P P Inside BOP 1 P H2S Gas Detector Location Gen.: P Sign: Housekeeping: P Rig cond: PTD On Location P Hazard: Standing Order: P ' BOP STACK: Quantity Size P/F ACCUMULATOR SYSTEM: Annular Preventer 1 13 5/8 P CHOKE MANIFOLD: Time/Psi P/F Pipe. Rams 1 13 5/8 P Quantity P/F System Pressure 3000 P Lower Pipe Rams No. Valves 14 P After Closure 1600 P Blind Rams 1 13 5/8 P Man. Chokes 1 P 200 psi Attained 30 P Choke Ln. Valves 1 4" P Hyd. Chokes 1 P Full Pressure 2:23 P HCR Valves 2 4" P Blind Covers (All Stations): P Kill Line Valves 1 4" P N2 Bottles (avg): 6 @ 2000 Check Valve N/A P P .. Test's Details This rig is on its initial wen after a shut down for summer maintenance at which time a level 1 inspection of the BOP equipment was performed. The initial function test of the equipment revealed the koomey lines to the choke and kill line HCRs were crossed, these were repaired at this time. The pressure testing was then completed with no failures observed. The lower pipe rams were not tested at this time due to the length of the cross over subs to the tubing hanger. They will be tested as soon as the tubing is laid down. The rig and location were very clean and orderly. The crews demonstrated good test procedures allowing the test to be completed in the minimum number of steps. Total Test Time: 4 Number of failures: 0 CC: Attatchments: None BOP Nabors 7E$ 8-8-00 CS.xls 8/15/00 ALASIIA OIL AND GAS CONSERVATION CO~LMISSION TONY KNOWLES, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE. ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 Dan Stone Senior Drilling Engineer Phillips Alaska Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit 11-28A Phillips Alaska Inc. Permit No: 200-095 Sur Loc: 744'NSL, 290'WEL, Sec. 28, T1 IN, R15E, UM Btmhole Loc. 1157'NSL, 810'WEL, Sec. 20, T1 IN, R15E, UM Dear Mr. Stone: Enclosed is the approved application for permit to redrill the above referenced well. The permit to redrill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25 035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Commission to witness a test of BOPE installed prior to drilling new hole. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. ~Daniel T Seamoi~nt, Jr. Commissioner BY ORDER OF THE COMMISSION DATED this ~ ~6. day of June, 2000 dlf/Enclosures Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASK~ iL AND GAS CONSERVATION COM~,,SSION -- PERMIT TO DRILL 20 AAC 25.005 ii la. Type of work [] Ddll [] Reddll 1 lb. Type of well [] Exploratory [] Stratigraphic Test [] Development Oil [] Re-Entry [] DeepenI [] Service [] Development Gas [] Single Zone [] Multiple Zone 2. Name of Operator /-~,~:::) :~,~.~.. 5. Datum Elevation (DF or KB) 10. Field and Pool ARC_~..~. Z~.i_.~, ~ -~/"/~' /5~ Plan RKB = 59.5' Prudhoe Bay Field / Prudhoe 3. Address 6. Properly Designation ~,~/ Bay Pool P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 028321 4. Location of well at surface 7. Unit or Property Name I11. Type Bond (See 2O AAC 25.025) 744' NSL, 290' WEL, SEC. 28, T11N, R15E, UM Prudhoe Bay Unit At top of productive interval 8. Well Number 1061' NSL, 716' WEL, SEC. 20, T11N, R15E, UM 11-28A Number U-630610 At total depth 9. Approximate spud date 1157' NSL, 810' WEL, SEC. 20, T11N, R15E, UM 07/10/00 Amount $200,000.00 12. Distance to nearest property line 113. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 028322, 810' MDI No Close Approach 2560 12354' MD/8823' TVD 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 5300' MD Maximum Hole Angle 48.1 o Maximum surface 2540 psig, At total depth (TVD) 8800' / 3420 psig 18. Casing Program Specifications Setting Depth Size Top B0ttqm quantity of Cement Hole Casinq Weiqht Grade Couplinq Lenqth MD TVD MD TVD (include staqe data) 8-1/2" 7" 26# L-80 BTC-M 6395' 5150' 4003' 11545' 8283' 159 sx Class 'G' 6-1/8" 4-1/2" 12.6# L-80 IBT-M 959' 11395' 8183' 12354' 8823' 140 sx Class 'G' 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured 12475 feet Plugs (measured) A~a$~[8 0{~ & G~$ Cor~$. L, offlffllSSl0~ true vertical 8927 feet Effective depth: measured 12427 feet Junk (measured) Packer fish, top at 11308' (05/00) true vertical 8891 feet Casing Length Size Cemented MD TVD Structural Conductor 80' 20" 2275 # Poleset 113' 113' Surface 4291' 13-3/8" 2500 sx AS III, 600 sx 'G', 150 sx AS II 4327' 3508' Intermediate Production 11568' 9-5/8" 500 sx SS II 11602' 8303' Liner 1186' 7" 313 sx SS II 11284'- 12470' 8083' - 8923' Tieback Sleeve 2011' 7" 280 sx Class 'G' 5423' - 7434' 4198' - 5523' Tieback Sleeve 3856' 7" 577 sx Class 'G' 7428' - 11284' 5519' - 8083' Perforation depth: measured 12270'-12300',ORIGINAL true vertical 8775' - 8797', 8811' - 8828' 20. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program [] Time vs Depth Plot [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Contact Engineer Name/Number: Allen Sherritt, 564-5204 Scott, Kolstad, 564-5347 Prepared By Name/Number: Terrie Hubble, 564-4628 21. I hereby certify that the foregoing is true un,correct to the best of my knowledge Signed Dan Stone ~.~.~,,~.,..,, ~r,-7, ~ Title Senior Drilling Engineer Date Permit Number ~,~ APl Number App~,,~/~ I See c°ver 'eEer ~ ::2--~-~C~ ~' ~ 50- 029-21958-01 for other requirements "~onditions of Approval: Samples Required I-I Yes .~No Mud Log Re~'uir~d' ~/ [] Yes '~["No Hydrogen Sulfide Measures ,~Yes [] No Directional Survey Required ,~Yes [] No Required WOrking Pressure for BOPE [] 2K; [] 3K; [] 4K; I-15K; [] 10K; [] 15K Other: :~0(~;~'~'~ ~"~~ ORIGINAL SIGNED BY by order of ~,/~,(~;:/~ Approved By .q T_-.'_'!.".r £~.-t..m.m :nt Commissioner the commission Date Form 10-401 Rev. 12-01-85 t In Triplicate 11-28A Permit to Drill I Well Name: 111-28A Sidetrack Plan Summary I Type of Redrill (producer or injector): I Producer Surface Location: Target Location: Bottom Hole Location- 744' FSL 290' FEL S28 T11N R15E Umiat X: 707,240' Y: 5,952,461' 1,061' FSL716' FEL S20T11N R15E Umiat X: 701,370' Y:5,957,900' 1,157' FSL810' FEL S20T11N R15E Umiat X: 701,274' Y: 5,957,994' I AFE Number: 14J8038 I I Estimated Start Date: 17/10/00 I I Rig: I Nabors 9ES I Operating days to complete: 116.5 I MD: 112,354'1 I TVD: 18823' I I BF/MSL: 130.2' I I RKB: 159.5' I Well Design (conventional, slimhole, etc.): I Conventional Sidetrack I Objective: I Twin existing well bore to a new BHL-300' North East. A Sidetrack around I I fish is required to bring well back on production Mud Program: Milling/Cutting Casing Mud Properties: LSND Density (ppg) I Funnel Vis I Yield Point 10.0 I 45-55 I 25-35 I Whipstock Window in 9-5/8" I pHI HTHP FL 9 - 9.5 <10 Intermediate Mud Properties: LSND I 8-1/2" hole section From sidetrack depth to 11,545' MD (8283' TVD). TD Top of Sag River. Density(ppg) IFunnelVis I YieldPointI PV I tau0 10.0to10.2 I 45-55 23-28 10-17 3-7 pH 9-9.5 APl FL <lOto 6 Production Mud Properties: Low Density QUICKDRILn Density (ppg) I Funnel vis LSRV PV 8.3 - 8.5 I 40 - 50 < 12,000 cP 5 - 8 6 1/8" hole section YP Ca++ J APIFI I PH <100 <10 9.0-9.5 17 - 22 Directional: KOP: I 5300' MD - 8 ¥2" I hole. Maximum Hole Angle: Close Approach Well: 48.1° through tangent interval None 11-28A Permit to Drill Logging Program: Intermediate Section Production Hole IDrilling: MWD / GR Open Hole: None Cased Hole: None Drilling: MWD / GR / Resistivity Open Hole: None Formation Markers: Formation Tops MD TVDss Comments Base Permafrost Not Penetrated SV3 / T5 Kick-Off Point in T5 Kick-Off Point 5,300' 4,060' SV1 / T3 +_ 5,625' 4,292' UG4 / K15-C1 _+ 6,415' 4,805' UG1 / UgS _+ 7,700' 5,665' TUZC _ 8,285' 6,020' WS1 / West Sak _+ 8,880' 6,430' CM-1 / K5 11,833' 7749' THRZ 11,200' 7,994' BHRZ 11,538' 8,220' Sag River 11,545' 8,225' Shublik 11,583' 8,250' Top Sadlerochit / Z4 11,665' 8,305' TZ3 11,853' 8,430' TZ2 12,175' 8,645' Est. pore press. 3420 psi (7.6ppg EMW) TD / BSAD 12,354' 8,765' Casin!/Tubinq Proqram: Hole Size Csg/ Wt/Ft Grade Conn Length Top Btm Tbg O.D. MD/TVD MD/TVD 8-1/2" 7" 26# L-80 BTC-M 6395' 5150'/4003' 11,545'/8283' 6-1/8" 4-1/2" 12.6# L-80 IBT-M 959' 11,395'/8183' 12,354'/8823' Tubing 3-1/2" 12.6# L-80 IBT-Mod 11,245' Surface 11,245'/8081' 11-28A Permit to Drill Cement Calculations: Liner Size 17" Intermediate I Basis: Lead: None Lead TOC: N/A Tail: Based on 80' shoe track volume and 1000' of open hole with 30% excess. Tail TOC: At -10,545' MD (-7,600' TVD). I Total Cement Volume: I Lead I None I Tail I 33 bbl/185.3 ft~ / 159 sks of Dowell Class 'G' at 15.8 ppg and 1 1.17 cf/sk. Liner Size 1 4 ¥2" Production I Basis: Tail: Based on 809' of open hole with 50% excess, 150' of 7" x 4.5" liner lap, 200' of 7" x 4" drill pipe annulus volume, and 80' of 4-1/2" shoe joint. Tail TOC: At top of liner -11,395' MD (8,186' TVD). Total Cement Volume: I Tail I 29 bbl / 163 ft~ / 140 sks of Dowell Class 'G' at 15.8 ppg and 1.17 I I cf/sk. Well Control: Well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3500 psi. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Maximum anticipated BHP: 3420 psi@ 8800' TVDss - Zone 1 Maximum surface pressure: 2540 psi @ surface (based on BHP and a full column of gas from TD @ 0.10 psi/ft) · Planned BOP test pressure: · Planned completion fluid: 3500 psi 8.6 ppg Seawater/6.8 ppg Diesel Drilling Hazards/Contingencies: HYDROGEN SULFIDE - H2S · DS 11 is designated as an H2S Pad. DS 11 H2S max reading 2/99 402 ppm. Review H2S procedures in the pre spud meeting. H2S precautions should be followed at all times. The last H2S reading from 11-28 was 6 ppm (measured in September 1999.) Standard Operating Procedures for H2S precautions should be followed at all times. DRILLING CLOSE APPROACH: · All wells pass close approach guidelines. INTERMEDIATE SECTION: Cretaceous over pressure is possible around 4,510' TVD. Appropriate mud weights will be used prior to entering this interval. The 11-28A well path will drill approximately 285' of HRZ shale. The kick tolerance for the 8-1/2" open hole section would be 163 bbls assuming an influx from the Sag River interval at -11,545' MD. This is a worst case scenario based on a 7.8 ppg pore pressure gradient, a fracture gradient of 12.0 ppg at the surface casing shoe, and 10.0 PEg ~ud in the hole. F""~ ;~'=~ .... ~ ~ .... ~,~ ~,~ ~ .... " ~ J JN 21 2000 11-28A Permit to Drill PRODUCTION SECTION: · There are no planned fault crossings in the reservoir section. Lost circulation has been minor on DS 11 on past wells in the production interval. · Gas cut mud is possible in the Shublik and Sadlerochit and will be controlled with appropriate mud weights. · The kick tolerance for the 7' shoe would be an infinite influx (annular volume) assuming an influx at section TD of 12,354' MD. This is a worst case scenario based on a 7.8 ppg pore pressure, a minimum fracture gradient of 9.5 ppg at the 7" casing shoe, and 8.3 ppg mud in the hole. Disposal: · No annular injection in this well. · Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. · Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I wastes to Pad 3 for disposal. SUMMARY SIDETRACK PROCEDURES Pre-Ri_ Work: . * Notify the field AOGCC representative with intent to plug and abandon * , RIH with CTU and perform a cement P&A using 15.8 ppg class 'G' cement with adequate cement volume to fill the 7" liner from top of fish @ 11,308' MD a minimum of 500' above the top of fish at 10,808' MD. Estimated minimum cement volume needed is 19 barrels. Tag top of cement to verify depth. NOTE: The perforations will be isolated by the existing packer/tubing tail, a fully cemented 7" tie-back liner from 11,284' MD to 5423' MD, the -500' of cement on top of fish/existing packer and a bridge plug in the 9 5/8" casing, (see proposed completion.) Displace the well to clean sea water. Continue to circulate until clean sea water returns to surface. Freeze protect top 2200' MD with diesel. Test the integrity of the cement plug and 9-5/8" casing and 7" liner by to 3000 psi for 30 minutes. Test the FMC 9-5/8" mandrel packoff and tubing hanger seals to 5000 psi for 30 minutes. Set a BPV in the tubing hanger and test from below to 1000 psi. Secure well. 6. Remove the well house and flowlines. If necessary, level the pad. Please provide total well preparation cost on the handover form. Ri.q Operations: 1. MIRU Nabors 9ES. 2. Circulate out freeze protection and displace well to sea water. Set TWC. 3. Nipple down tree. Nipple uP and test BOPE. 4. Pull and lay down 3 Y2" tubing freeze protect string at -2,340' MD. 11-28A Permit to Drill 5. RIH picking up window mills for a gauge run to -50 below kick off depth of -5,300' MD prior to RIH with the whipstock. RU E-line. Set BP on E-line at -5,320' MD (set as needed to avoid cutting casing collar). Pressure test the 9 5/8" casing to 3000 psi. 6. RIH with 9-5/8" Baker bottom-trip anchor whipstock assembly. Orient whipstock as desired and set on BP. Mill window in 9-5/8" casing at -5,300' MD. POOH. 7. Kick-off and drill 8 1/2" hole from 5,300' to -11,545' at the top of the Sag River formation. Run MWD/GR LWD. No other logs are planned for this interval. 8. Run and cement a 7" 26# L-80 intermediate drilling liner. 9. Make up and RIH with a 6 1/8" directional assembly to the landing collar. 10. Test the 9-5/8" casing and 7" liner from the landing collar to surface to 3000 psi for 30 minutes. 11. Drill out 6 1/8" hole from 11,545' to TD of 12,354' in Zone 1. Run MWD/GR/Res real time LWD. 12. Run and cement a 4 1/2", 12.6# L-80 IBT-Mod solid production liner throughout the 6-1/8" well bore. 13. Displace well to clean sea water above liner top. POOH LD DP. After the cement has gained sufficient compressive strength, pressure test the 4 1/2", 7", and 9-5/8" casing from the 4 1/2" landing collar to surface to 3000 psi for 30 minutes. 14. Run 3 1/2", 9.2# L-80 EUE 8rd completion tying into the 4 1/2" liner top. 15. Set packer @ -11,245' MD and test the tubing to 3500 psi and annulus to 3000 psi for 30 minutes. 16. Set BPV, nipple down the BOPE. Nipple up and test the tree to 5000 psi. 17. Freeze protect the well to -2200' and secure well. 18. Rig down and move off. Estimated Pre-rig Start Date: Estimated Spud Date: Allen Sherritt Operations Drilling Engineer 564-5204 06/28/00 07/10/00 11-28 RWO Existing Condition TREE: 4-1116 ' - 5M L-80 GL 27.8' WEU.HEAD: ~3 s/8-- sM c~w 64 ! RKB = 57.1' I : ~ ~ 3-1/2' 9.3# L-80, EUE 8rd- Mod. Freeze =// Protect Tubing String I '1 13-3/8", 68 #/ft, L-80 / K-55 '1 dUN 2 1 2000 Second 7" Liner-Tieback Top ~ 54Z3' :;':~:': '::;:::: A~ch0rage !:::::~: .. :: ::: - , .. :: . iii:': Original 7" Liner-Tieback Top :.,;!:! ...., ::7:..~ ·.: .:. : '.':1 ~ '.: , i ' ':' lop of fish at 11,308' MD ':: I ~ i:'! ~-112' 'XN' landing Nipplo with 2.813" $oal boro and 2.75' No-Go :~' '!' ~: Gustom Tubing Ovorshot to swallow $-112' tubing stub of oxisting ¢omplotion. :":i [] ~-5/8~, 47 #Iff, [.-80, BTG .~ :i ~ ~ lubing tail will romain at 11,400' MD. I I · 1 ?", 2O #/lt, t_-aO, BlC ~ ~ Date Rev By Comments ~RUDHO£ B~¥ UNII 6/16/00 OAS Existing Condition after workover operations. WELL: 11-28 APl NO: 50-029-21958 Shared Services Drilling TREE: 4-1/16' -5M L-80 WELLHEAD: CIW Gen 4, 13 3/8' - 5M 11-28A Proposed Completion 7"26ff LinerTopat i +/-5150' I BAKER 9 5/8" Whipstock @ ~5300' MD Bridge Plug @ -5320' MD I · Second 7" Liner-Tieback Top 15423' MD Original 7" Liner-Tieback Top I 7428' MD I 500' Cement Plug set at +/-10,808' MD 7" Liner Top ! 11,272' MDI 9-5/8", 47 #fit, L-80, BTC I I Top Perforation at +/-10,818' MD Plug Back Depth I 12,348' MDI 7", 29 #/ft, L-80, BTC I 12,470' MD I GL Elevation = 27.8' Nabors 7ES RKB = 57.1' 3-1/2' 'X' Landing Nipple with 2.813" seal bore. I-1/2" x 1-1/2' Gas Lift Mandrels with handling pups installed. GAS UFT MANDRELS MD Size Valve Type 4,700' 7,800' 10,000' 11,160' 1-1/2" 1-1/2' 1-1/2' 1-1/2" RP Shear DV DV DV 3-1/2" 9.3# L-80, EUE 8rd-Mod Tubing Window Milled from Whipstock Top of Window at +/- 5300' MD JUN 21 2000 Date 6/16/00 7" x 4 1/2" Baker'S' Production Packer ". @ -11,245' MD 4-1/2" 'X' Landing Nipple with 3.813" seal bore. 4-1/2" WLE Guide spaced-out into liner top. 4-1/2" Liner top packer and hanger @ -11,395'MD. 7", 26#, L-80, BTC I +/-11,545' MD I 4-1/2" 12.6 #Iff, L-80, BTCM I +/-12,354' MD I PRUDHOE BAY UNIT WELL: 11-28A APl #: 50-029-21958-01 Revised_bY_ JAS Cgm._m..e_n_ts _Prop__o~_ed_ cg. mp.!e_t_ipn ..... Shared Services Drilling 11-28A WD02 · I DrillQuesf 4OOO 5OO0 ST Exit @ 12.000°/100ft, 60.000° TF' 5300.01ft MD, 4118.39ft TVD Dir @ 6.000°/10Oft: 5340.00ft MD, 4142.96ft TVD End Dir: 5428.18ft MD, 4198.74ft TVD JUN 2! 2OOO 6OOO .-- ~ 7000 8000 o o o c° 9000 .-- I I I 3000 5000 6000 Scale: linch = 1000ft Vertical Section 8702. 78 5598.80 N, 5718.19 W 7" Liner K5 - 7806 78 7'VD 11545.52 MD ~2.1~2~.7.8 ."[VD. ..... THRZ- 8087.78 TVD /'~BIJRZ - 8277 78 TVD . . .......Z3 - 8487.78 TVD 4 1/2" Liner 12354.36 MD 8822.78 TVD I I I 7000 8000 9000 Section Azimuth: 315.922° (True North) ~s~umm~ Single Well Target Data for 11-28A WPS units: ft Coordinate Target Point TVDrkb TVDss Northlnga Eestlngs ASP X ASP X Target IN arno Type Shape [ll-28AWp0! EntryPoint8702.78 8645.00 5598.80N 5718.19W 5957900.00N 701370.00EPoint Proposal Data for 11-28A Wp02 Vertical Origin: Well Horizontal Origin: Well Measurement Units: North Reference: True North Dogleg severity: Degrees per 10Oft Vertical Section Azimuth: 315.922° Vertical Section Description: Well Vertical Section Origin: 0.00 N,0.00 E Measured Incl. Azim. Vertical Northings Eastings VorticalDogleg Depth Depth Section Rate 5300.00 50.858310.005 4118.39 1918.86 N 2154.75 W 2877.42 5340.00 53.375315.185 4142.96 1940.23 N 2177.96 W 2908.92 12,000 5428.18 48.117315,947 4198.74 1988.96 N 2225.76 W 2977.18 6.000 12174.6248.117315.947 8702.78 5598.80 N 5718.19W 7999.93 0.000 12354,3648.117315.947 8822.78 5694.98 N 5811.24 W 8133.75 0.000 Current Well Properties Welt: 11-28A WPS Horizontal Coordinates: Ref. Global Coordinates: Ref. Structure Reference : Ref. Geographical Coordinates: RKB Elevation: North Reference: Units: 5952460.80 N, 707240.21 E 2942.06 N, 267.75 W 70° 16' 24.7802" N, 148° 19' 24.8335" W 57.78ft above Mean Sea Level 57.78ft above Structure Reference True North Feet 5250 - 4500 - 3750- 3000 - CO 2250- ._ I,,- Scale: linch = 750ft -6000 -5250 I I 4 1/2' Liner 8822.78 11-28A WpOl 8702. 78 5598.80 N, 5718.19 W 7' Liner 11545.52 MD 8282.78 TVD Shared Services Drilling 11-28A Wn 02 a Eastings -4500 -3750 -3000 I I I I -6000 Scale: linch = 750ft .._~ ~1~ End Dir' 5428.18ft MD, { , -5 -3750 Eastings JUN 21 2000 Alaska 0~I & Gas Co~s. Commission Anch0ra§e I -3000 I DrillQuesf -2250 I I 525O 45OO 1:: o 3750 Z 3O0O -2250 Referenceis True No~h 2250 Measurement Units: CoordlnateSinglen Well Target Data for 11-28A WPS Target Point TVDrkb TVDes Northlngs Eastlnge ASPX ASP X Target Name Type Shape ]-28AWpOI EnttyPoin!8702.78 8645.00 5598.80N 5718.19W 5957900.00N 701370.00EPoint Proposal Data for 11-28A Wp02 Vertical Odgin: Well Horizontal Origin: Well Measurement Units: ff North Reference:True North Dogleg severity: Degrees per 10Oft Vertical Section Azimuth: 315.S22° : Vertical Section Description: Well Vertical Section Origin: 0.00 N,O.OO E Measured Incl. Azim. Vertical Northings Eastings VerticalDoglag Depth Depth Section Rata 5300.00 50.858310.005 4118.39 1918.86 N 2154.75 W 2877.42 5340.00 53.375315.185 4142.96 1940.23 N 2177.96 W 2908.92 12.000 5428.18 48.117315.947 4198.74 1988.96 N 2225.76 W 2977.18 6.000 12174.6248.117315.947 8702.78 5598.80 N 5718.19W 7999.93 0.000 12354.3648.117315.947 8822.78 5694.98 N 5811.24 W 8133.75 0.000 Current Well Properties Well: 11-28A WPS Horizontal Coordinates: Ref. Global Coordinates: Ref. Structure Reference : Ref. Geographical Coordinates: RKB Elevation: North Reference: Units: 5952460.80 N, 707240.21E 2942.06 N, 267.75W 70°16'24.7802" N, 148°19'24.8335"W 57.78ft above Mean Sea Level 57.78ft above Structure Reference True North Feet JUN 2 1 2000 Sperry-Sun Drilling Services Proposal Report for 11-28A WPS- 11-28A Wp02 Revised: 20 June, 2000 North Slope Alaska Measured Sub-Sea Depth Incl. Azim. Depth (ft) (ft) 5300.00 50.858 310.005 4060.61 5340.00 53.375 315.185 4085.18 5400.00 49.796 315.691 4122.45 5428.18 48.117 315.947 4140.96 5500.00 48.117 315.947 4188.90 5600.00 48.117 315.947 4255.67 5700.00 48.117 315.947 4322.43 5800.00 48.117 315.947 4389.19 5900.00 48.117 315.947 4455.95 6000.00 48.117 315.947 4522.71 6100.00 48.117 315.947 4589.47 6200.00 48.117 315.947 4656.24 6300.00 48.117 315.947 4723.00 6400.00 48.117 315.947 4789.76 6500.00 48.117 315.947 4856.52 6600.00 48.117 315.947 4923.28 6700.00 48.117 315.947 4990.05 6800.00 48.117 315.947 5056.81 6900.00 48.117 315.947 5123.57 7000.00 48.117 315.947 5190.33 7100.00 48.117 315.947 5257.09 7200.00 48.117 315.947 5323.85 7300.00 48.117 315.947 5390.62 7400.00 48.117 315.947 5457.38 7500.00 48.117 315.947 5524.14 Vertical Local Coordinates Depth Northings Eastings (ft) (ft) (ft) 4118.39 1918.86 N 2154.75 W 4142.96 1940.23 N 2177.96W 4180.23 1973.72 N 2210.95W 4198.74 1988.96 N 222! 4246.68 2027.39 N 4313.45 2080.90 N 4380.21 2134.40 4446.97 2187.91 ~4W 4513.73 W 4580.49 .93 2521.77W 4647.25 2573.54W 4714.02 2625.31W 4780.78 .N 2677.07W 4847.54 2728.84W 49 2780.61W 2615.97 N 2832.38W 2669.48 N 2884.14W 511 2722.98 N 2935.91W 5181.35 2776.49 N 2987.68W 5248.11 2830.00 N 3039.44W 5314.87 2883.51N 3091.21W 5381.63 2937.01 N 3142.98W 5448.40 2990.52 N 3194.74W 5515.16 3044.03 N 3246.51W 5581.92 3097.54 N 3298.28W 5954372.88 N 704975.75 E 5954387.71 N 704960.52 E N 7O4922.30 E 5954477.16 N 704869.08 E 5954529.22 N 704815.85 E 5954581.28 N 704762.63 E 5954633.34 N 704709.41E 5954685.41 N 704656.19 E 5954737.47 N 704602.97 E 5954789.53 N 704549.75 E 5954841,59 N 704496.53 E 5954893.65 N 704443.31E 5954945.71N 704390.09 E 5954997.77 N 704336.87 E 5955049.84 N 704283.65 E 5955101.90 N 704230.42 E 5955153.96 N 704177.20 E 5955206.02 N 704123.98 E 5955258.08 N 704070.76 E 5955310.14 N 704017.54 E 5955362.20 N 703964,32 E 5955414.27 N 703911.10 E 5955466,33 N 703857.88 E Dogleg Rate (o/looft) 12.000 6.000 6.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) 2877.42 2908.92 2955.92 2977.18 3030.65 3105.10 3179.55 3254.00 3328.45 3402.90 3477.35 3551.80 3626.25 3700.70 3775.15 3849.60 3924.05 3998.50 4072.95 4147.40 4221.85 4296.30 4370.75 4445.20 4519.65 Comment ST Exit @ 12.000°/100ft. 60.000° TF: 5300.01ft MD, 4118.39ft TVD Beqin Dir @ 6.000°/100ft: 534'0.00ft MD, 4142.96ft TVD End Dir: 5428.18ft MD, 4198.74ft TVD Continued... 20 June, 2000 - 10:05 - 2 - Dr/I/Quest 1.05.04c JUN 21 nnn Alaska Oi.'I & Gas Cons. Co,'~,~.ission Anchorsge Sperry-Sun Drilling Services Proposal Report for 11-28A WPS- 11-28A Wp02 Revised: 20 June, 2000 North Slope Alaska Measured Depth Incl. Azim. (fi) 7600.00 48.117 315.947 7700.00 48.117 315.947 7800.00 48.117 315.947 7900.00 48.117 315.947 8000.00 48.117 315.947 8100.00 48.117 315.947 8200.00 48.117 315.947 8300.00 48.117 315.947 8400.00 48.117 315.947 8500.00 48.117 315.947 8600.00 48.117 315.947 8700.00 48.117 315.947 8800.00 48.117 315.947 8900.00 48.117 315.947 9000.00 48.117 315.947 9100.00 48.117 315.947 9200.00 48.117 315.947 9300.00 48.117 315.947 9400.00 48.117 315.947 9500.00 48.117 315.947 9600.00 48.117 315.947 9700.00 48.117 315.947 9800.00 48.117 315.947 9900.00 48.117 315.947 10000.00 48.117 315.947 Sub-Sea Depth (ft) 5590.90 5657.66 5724.43 5791.19 5857.95 5924.71 5991.47 6058.23 6125.00 6191.76 6258.52 6325.28 6392.04 6458.80 6525.57 6592.33 6659.09 6725.85 6792.61 6859.38 6926.14 6992.90 7059.66 7126.42 7193.18 Ve~ical Local Coordinates Global Depth Nothings Eastings No~hin¢ Is (~) (~) (~) (~) 5648.68 3151.04 N 3350.05W 703804.66 E 5715.44 3204.55 N 3401.81W 703751.44 E 5782.21 3258.06 N 3453.58W ;1N 703698.21E 5848.97 3311.56 N 3505.35W ~N 703644.99 E 5915.73 3365.07 N 3557.11W 5955726.63 N 703591.77 E 5982.49 3418.58 N 3608. N 703538.55 E 6049.25 3472.09 N N 703485.33 E 6116.01 3525.59 N 5955882.82 N 703432.11 E 6182.78 3579.10 N 5955934.88 N 703378.89 E 6249.54 3632.61 5955986.94 N 703325.67 E 6316.30 i3867.72W 5956039.00N 703272.45 E 6383.06 37~9..62 3919.48W 5956091.06N 703219.23 E 6449.82 ~'~-13N"~,,,~ 3971.25W 5956143.13 N 703166.00 E 6516.58 '~46~ 4023.02W 5956195.19 N 703112.78 E 6583.35 a111~1~3,1~15 N 4074.78W 5956247.25 N 703059.56 E 6650.11~l~t[j~3.65~r~l~ N 4126.55W 5956299.31N 703006.34 E 67~7~ '~m'4007.16 N 4178.32W 5956351.37 N 702953.12 E ,~"37111~.~ 4060.67 N 4230.09W 5956403.43 N 702899.90 E '~.3g~t 4114.18 N 4281.85W 5956455.49 N 702846.68 E 69'11~ 4167.68 N 4333.62W 5956507.56 N 702793.46 E 6983.92 4221.19 N 4385.39W 5956559.62 N 702740.24 E 7050.68 4274.70 N 4437.15W 5956611.68 N 702687.02 E 7117.44 4328.20 N 4488.92W 5956663.74 N 702633.80 E 7184.20 4381.71N 4540.69W 5956715.80 N 702580.57 E 7250.96 4435.22 N 4592.45W 5956767.86 N 702527.35 E Dogleg Rate (°/100ft) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Alaska State Plane 4 PBU_EOA DS 11 Ve~ical Section (fi) 4594.10 4668.55 4743.01 4817.46 4891.91 4966.36 5040.81 5115.26 5189.71 5264.16 5338.61 5413.06 5487.51 5561.96 5636.41 5710.86 5785.31 5859.76 5934.21 6008.66 6083.11 6157.56 6232.01 6306.46 6380.91 Comment Continued... 20 June, 2000 - 10:o5 - 3 - DrillQuest 1.05.04c Sperry-Sun Drilling Services Proposal Report for 11-28A WPS- 11-28A Wp02 Revised: 20 June, 2000 North Slope Alaska Measured Sub-Sea Depth Incl. Azim. Depth (~) (~) 10100.00 48.117 315.947 7259.95 10200.00 48.117 315.947 7326.71 10300.00 48.117 315.947 7393.47 10400.00 48.117 315.947 7460.23 10500.00 48.117 315.947 7526.99 10600.00 48.117 315.947 7593.76 10700.00 48.117 315.947 7660.52 10800.00 48.117 315.947 7727.28 10832.53 48.117 315.947 7749.00 10900.00 48.117 315.947 7794.04 11000.00 48.117 315.947 7860.80 11100.00 48.117 315.947 7927.56 11200.00 48.117 315.947 7994.33 11253.43 48.117 315.947 8030.00 11300.00 48.117 315.947 8061.09 11400.00 48.117 315.947 8127.85 11500.00 48.117 315.947 8194.61 11538.03 48.117 315.947 8220.00 11545.52 48.117 315.947 8225.00 11582.96 48.117 315.947 8250.00 11600.00 48.117 315.947 8261.37 11665.35 48.117 315.947 8305.00 11700.00 48.117 315.947 8328.14 11800.00 48.117 315.947 8394.90 11852.58 48.117 315.947 8430.00 Vertical Local Coordinates Global Depth Northings Eastings Northin¢ Iings (ft) (ft) (ft) (ft) 7317.73 4488.73 N 4644.22 W 702474.13 E 7384.49 4542.23 N 4695.99 W 702420.91 E 7451.25 4595.74 N 4747.76 W N 702367.69 E 7518.01 4649.25 N 4799.52 W I1 N 702314.47 E 7584.77 4702.76 N 4851.29 W 5957028.17 N 702261.25 E 7651.54 4756.26 N 4903. N 702208.03 E 7718.30 4809.77 N 702154.81 E 7785.06 4863.28 N 5957184.35 N 702101.59 E 7806.78 4880.69 N 5957201.29 N 702084.27 E 7851.82 4916.79 5957236.42 N 702048.36 E 7918.58 10.12 W 5957288.48 N 701995.14 E 7985.34 5~_~.80 5161.89 W 5957340.54 N 701941.92 E 8052.11 ~6.(~31 N 5213.66 W 5957392.60 N 701888.70 E 8087.78 ~9~i~1 5241.32 W 5957420.42 N 701860.26 E 8185.63~'~ J~84.32 N 5317.19 W 5957496.72 N 701782.26 E 82_,~i~g~k '~5237.83 N 5368.96 W 5957548.78 N 701729.04 E ,aJFF-/TR~ ~ 5258.18 N 5388.65 W 5957568.58 N 701708.80 E 5262.18 N 5392.52 W 5957572.48 N 701704.81 E 8307~8 5282.22 N 5411.91 W 5957591.98 N 701684.88 E 8319.15 5291.34 N 5420.73 W 5957600.85 N 701675.82 E 8362.78 5326.30 N 5454.55 W 5957634.87 N 701641.04 E 8385.92 5344.84 N 5472.49 W 5957652.91 N 701622.60 E 8452.68 5398.35 N 5524.26 W 5957704.97 N 701569.38 E 8487.78 5426.49 N 5551.48 W 5957732.34 N 701541.39 E Dogleg Rate (Vl00fl) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (~) 6455.36 6529.81 6604.26 6678.72 6753.17 6827.62 6902.07 6976.52 7000.74 7050.97 7125.42 7199.87 7274.32 7314.10 7348.77 7423.22 7497.67 7525.98 7531.56 7559.44 7572.12 7620.77 7646.57 7721.02 7760.17 Comment K5 THRZ BHRZ 7" Liner LCU/TSGR SHU Z4 Z3 Continued... 20 June, 2000 - 10:05 - 4 - DrillQuest 1.05.04c 2 1 2000 Oil & Gas Cons. Commission A~or~go Sperry-Sun Drilling Services Proposal Report for 11-28A WPS- 11-28A Wp02 Revised: 20 June, 2000 North Slope Alaska Measured Depth Ct) 11900.00 12000.00 12100.00 12174.62 Sub-Sea Vertical Local Coordinates Incl. Azim. Depth Depth Northings Eastings (ft) (ft) (ft) (ft) 48.117 315.947 8461.66 8519.44 5451.86 N 5576.03 W 48.117 315.947 8528.42 8586.20 5505.37 N 5627.79 W 48.117 315.947 8595.18 8652.96 5558.87 N 5679.56 W 48.117 315.947 8645.00 8702.78 5598.80 N 5718.19 W 12200.00 48.117 315.947 8661.94 8719.72 5612.38 N 12300.00 48.117 315.947 8728.71 8786.49 5665.89 N 12354.36 48.117 315.947 8765.00 8822.78 5694.98 N All data is in feet unless otherwise stated. Directions and Vertical depths are relative to Well. Northings and Eastings a~ 5731.3: Global (ft) tings 7o1516.16 E 701462.93 E 5 N 701409.71E )0 N 701370.00E S ve to True North. :ive to Well. N N 5957993.58 N 7O1356.49 E 701303.27 E 701274.34 E Dogleg Rate (°/lOOft) 0.000 0.000 0.000 0.000 0.000 o.ooo o.0oo Alaska State Plane 4 PBU_EOA DS 11 Vertical Section (ft) 7795.47 7869.92 7944.37 7999.93 8018.82 8093.27 8133.75 Comment Z2A rget .- 1.1-28A Wp01, o~og~ca~ Total Depth: 12354.36ft MD, 8822.78ft TVD 4 1/2" Liner BSAD/KAVIK The Dogleg Severity is in Degrees per 100ft. Vertical Section is from Well and calculated of 315.922° (True). Based upon Minimum Curvature type calculations, easured Depth of 12354.36ft., The Bottom Hole Displacement is 8136.54ft., in the Direction of 314.421° (True). Continued... 20 June, 2000 - 10:05 - 5- DrillQuest 1.05.04c I DATE ['CHECK NO. Ioo~42~ '169425 (, ( I°~'~6'°° I ] VENDOR AL ~KA~TAT 10 DATE INVOICE / CREDIT MEMO DESCRIPTION GROSS DISCOUNT NET ~2&00 CKO~2600A 100. 00 100. 00 H~NDL])NO INST: s/h tereie x 462[ E AT'rACHED CHECK 1 ~1PAYllil~iT ] IlF. idS [[[ii[ ABOVE BI[Ill-'Ill ] 1 ~i~ ~ 1 ~ ~ 'FIRST NATIO~'~.:BAN K:::OF ASH 'EAND i.:"::'i::i: ..": ::!: :~i~i~UATEi.~ :::::~ii?':.:' :i:':'.'.. '!..:::':.:i ::...::' N~jON~.:CITY:B/~K '::.'.':.:. :~.'i i: · :::.:::.::..::. :i 'QEEVB~D 0~i0 :.:':' i' .:'.' :' ":!ii::':56-389.':'.": .... : ':"" : ...... .: --.-..:: 4'12 CONSOEiD~ED COMM~BcI.~[ "'],Eqha5"" ':Ohiall3P, qs': O0G 1-28A Ddlling Permit Subject: 11-28A Drilling Permit Date: Wed, 28 Jun 2000 12:45:07 -0500 From: "Sherritt, Allen (ARCO)" <SherriJ~,@BP.com> To: '"Tom Maunder'" <Tom_Maunder@admin.state.ak. us> Tom, The estimated spud date for 11-28A has moved from 7-10-00 to 7-7-00. Things are progressing a little faster then expected on N-10A and with the long weekend coming up, I wanted to make sure you were aware of the time table for processing 11-28A's Drilling Permit. Thanks for the help, Allen 1 of 1 6/28/00 2:13 PM ~e: 11-28A FIT's (PTD-200-095) Subject: Re: 11-28A FIT's (PTD-200-095) Date: Wed, 28 Jun 2000 15:34:19 -0800 From: Tom Maunder <tom_maunder@admin.state.ak. us> To: "Sherritt, Allen (ARCO)" <SherriJ&@BP.com> Thanks Al!! Tom "Sherritt, Allen (ARCO)" ~rote: > Tom, > Allen We will perform two FIT's; (b ~- ~t u~ % ~rx_~ , #1. After drilling 20' newformation outside window, perform a FIT to 12.0 ppg EMW. The Cretaceous is estimated to be at 9.8 ppg EMW. #2. After drilling out the 7" shoe and 20' new formation, perform a FIT to 9.5 ppg EMW. The reservoir pressure is estimated to be 7. 6 ppg EMW, 3420 psi. If you need anything e/se give me a shout... Tom Maunder <tom maunder~admin.state.ak, us> Petroleum Engineer Alaska Oil and Gas Conservation Commission 1 of 1 6/28100 3:46 PM ... wE~L PERMIT CHECKLIST COMPANY ,/'~'L~"'///~S WELL NAME//' Z~5~'/"~. PROGRAM: exp .... dev' ''v/' reddl ~':" serv ' wellbore sag .. FIELD&PoOl' ' /~-?..~_~/~_/"~ iNi~cLAss d ~~.L/ ~'~t/-- GEOLAREA ~,4~<:~% ..... UNIT# ADI~NISTRATION 1. Permit fee attached ....................... 2. Lease number appropriate?~: ~'.~. 3. Unique well name and number .................. 4. Well located in a defined pool .................. ;? N 5. Well located proper distance from drilling unit boundary .... N 6. Well located proper distance from other wells .......... N 7. Sufficient acreage available in drilling unit ............ N 8. If deviated, is wellbore plat included ............... N 9. Operator only affected party ................... N 10. Operator has appropriate bond in force ............. N 11. Permit can be issued without conservation order ........ N DATE. 12. Permit can be issued without administrative approval ...... "'~.~N ~ ~. 'Z.(- CL~ 13. Can permit be approved before 15-day wait ........... ENGINEERING 14. Conductor string provided ................... 15. Surface casing protects all known USDWs ........... 16. CMT vol adequate to circulate on conductor & surf csg ..... 17. CMT vol adequate to tie-in long string to surf csg ........ 18. CMT will cover all known productive horizons .......... 19. Casing designs adequate for C, T, B & permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a to-drill, has a 10-403 for abandonment been approved... 22. Adequate wellbore separation proposed ............. ann. disposal para req ~ ON/OFF SHORE 23. 24. 25. .DATE 26. ~ (,,, 27. 28. .._ 29. GEOLOGY 30. 31. 32. _~ DATE 33. If diverter required, does it meet regulations .......... Drilling fluid program schematic & equip list adequate ..... .~ N BOPEs, do they meet regulation ................ ~ N BOPE press rating appropriate; test to ~~ psig. Choke manifold complies w/APl RP-53 (May 84) ........ Work will occur without operation shutdown ........... ~Y~ N ,.. Is presence of H2S gas probable ................. Permit can be issued w/O hydrogen sulfide measure,.==~. . ~_N__~,~~.///~~.//,~ . II Data presented on potential Overpressure zones -/- ...... / Y N --- II Seismic analysis of shallow gas zones ............ ..IA' Y N ,,~>/,~,,~,-~.:.,c~i~,- ~.~ C~__~-~c~.% gz._~-i~_j ~-)~.~¢5x~-/,C ~,'~ JJ Seabed condition survey (if off-shore) ........... //V.TM YN II Contact name/phone for weekly progress reports [expl~o~atory only] Y N ~ ..... ~ __ .~' '" ~ " ANNULAR DISPOSAL35. With proper cementing records, this plan (A) will contain waste in a suitable receiving zone; ....... Y N APPR DATE (B) will not contaminate freshwater; or cause drilling waste... Y N to surface; (C) will not impair mechanical integrity of the well used for disposal; Y N (D) will not damage producing formation or impair recovery from a Y N pool; and (E) will not circumvent 20 AAC 25.252 or 20 AAC 25.412. Y N coMMISsIoN: Comments/Instructions: c:\msoffice\wordian\diana\checklist (rev. 02117/00) Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the hiStory file. To improve the readability of the Well History file and to simplify'finding informatiOn, information of this nature is accumulated at the end of the file under APPENDIXi o. No special'effort has been made to chronologically ' . organize this category of information. Sperry-Sun Drilling Services LIS Scan Utility SRevision: 3 $ LisLib SRevision: 4 $ Mon May 13 15:45:54 2002 Reel Header Service name ............. LISTPE Date ..................... 02/05/13 Origin ................... STS Reel Name ................ UNKNOWN Continuation Number ...... 01 Previous Reel Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Tape Header Service name ............. LISTPE Date ..................... 02/05/13 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Previous Tape Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay Unit MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA 11-28A 500292195801 BP Exploration (Alaska), Inc. Sperry Sun 13-MAY-02 MWD RUN 2 MWD RUN 3 MWD RUN 4 JOB NUMBER: AK-MM-00131 AK-MM-00131 AK-MM-00131 LOGGING ENGINEER: J. SACK J. SACK J. SACK OPERATOR WITNESS: D. JACKSON D. JACKSON T. ANGLEN / JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD MWD RUN 5 AK-MM-00131 J. SACK T. ANGLEN / 28 lin 15E 744 290 .00 56.28 27.78 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 9.625 5288.0 2ND STRING 8.500 7.000 11590.0 3RD STRING PRODUCTION STRING REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTHS (MD) UNLESS OTHERWISE STATED. 2. MWD RUN 1 IS DIRECTIONAL ONLY AND IS NOT PRESENTED MWD RUNS 2 - 4 ARE DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTILIZING GEIGER MUELLER TUBE DETECTORS. 4. MWD RUN 5 IS DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTILIZING GEIGER MUELLER TUBE DETECTORS, ELECTROMAGNETIC WAVE RESISTIVITY PHASE 4 (EWR4), COMPENSATED THERMAL NEUTRON POROSITY (CTN), AND STABILIZED LITH-DENSITY (SLD). 5. GAMMA RAY LOGGED BEHIND CASING FROM 11551' MD, 8249' TVD, TO 11590' MD, 8275' TVD. 6. DEPTH SHIFTING / CORRECTION WAIVED PER THE EMAIL FROM D. SCNORR OF 03/29/02. MWD CONSIDERED PDC. THIS WELL KICKS OFF FROM 11-28 AT 5272' MD, 4100' TVD (TOP OF WHIPSTOCK). ALL MWD LOG HEADER DATA RETAINS THE ORIGINAL DRILLER'S DEPTH REFERENCES. 7o MWD RUNS 1 - 5 REPRESENT WELL 11-28A WITH API % 50-029-21958-01. THIS WEL. REACHED A TOTAL DEPTH OF 12455' MD, 8904' TVD. SROP = SMOOTHED RATE OF PENETRATION SGRC = SMOOTHED GAMMA RAY COMBINED SEXP = SMOOTHED PHASE SHIFT DERIVED RESISTIVITY ( EXTRA SHALLOW SPACING ) SESP = SMOOTHED PHASE SHIFT DERIVED RESISTIVITY ( SHALLOW SPACING ) SEMP = SMOOTHED PHASE SHIFT DERIVED RESISTIVITY ( MEDIUM SPACING ) SEDP = SMOOTHED PHASE SHIFT DERIVED RESISTIVITY ( DEEP SPACING ) SFXE = SMOOTHED FORMATION EXPOSURE TIME SBD2 = SMOOTHED BULK DENSITY (LOW-COUNT BIN) SC02 = SMOOTHED STANDOFF CORRECTION (LOW-COUNT BIN) SNP2 = SMOOTHED NEAR DETECTOR ONLY PHOTOELECTRIC ABSORPTION FACTOR (LOW-COUNT BIN) TNPS = SMOOTHED THERMAL NEUTRON POROSITY (SANDSTONE MATRIX, FIXED HOLE SIZE) CTNA = SMOOTHED AVERAGE OF NEAR DETECTOR'S COUNT RATE CTFA = SMOOTHED AVERAGE OF FAR DETECTOR'S COUNT RATE ENVIRONMENTAL PARAMETERS USED IN PROCESSING THE NEUTRON LOG DATA: HOLE SIZE: 6.0" MUD WEIGHT: PPG MUD FILTRATE SALINITY: CHLORIDES FORMATION WATER SALINITY: FLUID DENSITY: G/CC MATRIX DENSITY: G/CC LITHOLOGY: SANDSTONE $ File Header Service name ............. STSLIB.001 8.5 550 PPM 11,500 PPM CHLORIDES 1.00 2.65 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GR ROP FCNT RPX RPS RPM RPD FET NCNT NPHI RHOB DRHO PEF $ START DEPTH 5274.5 5301 5 11580 0 11580 0 11580 0 11580 0 11580 0 11580.0 11580.0 11580.0 11597.0 11597.0 11597.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH $ MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD $ REMARKS: BIT RUN NO MERGE TOP MERGE BASE 2 5274.5 7361.0 3 7361.5 10238.0 4 10238.5 11590.0 5 11590.5 12455.0 Name Service Order Units Size DEPT FT 4 ROP MWD FT/H 4 GR MWD API 4 RPX MWD OHMM 4 RPS MWD OHMM 4 RPM MWD OHMM 4 RPD MWD OHMM 4 FET MWD HR 4 NPHI MWD PU-S 4 NCNT MWD CP30 4 FCNT MWD CP30 4 RHOB MWD G/CM 4 DRHO MWD G/CM 4 PEF MWD B/E 4 Nsam Rep Code Offset Channel 1 68 0 1 1 68 4 2 1 68 8 3 1 68 12 4 1 68 16 5 1 68 20 6 1 68 24 7 1 68 28 8 1 68 32 9 1 68 36 10 1 68 40 11 1 68 44 12 1 68 48 13 1 68 52 14 Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .lin Max frames per record ............. Undefined Absent value ...................... -999 Depth Units ....................... Datum Specification Block sub-type...0 STOP DEPTH 12414 0 12455 0 12377 0 12421 5 12421 5 12421 5 12421 5 12421.5 12377.0 12377.0 12393.0 12393.0 12393.0 EQUIVALENT UNSHIFTED DEPTH MERGED MAIN PASS. $ Name Service Unit Min Max DEPT FT 5274.5 12455 ROP MWD FT/H 0.04 2155.01 GR MWD API 9.49 538.78 RPX MWD OHMM 1.63 1850.32 RPS MWD OHMM 1.42 2000 RPM MWD OHMM 1.44 2000 RPD MWD OHMM 0.32 2000 FET MWD HR 0.54 73.26 NPHI MWD PU-S 5.3 62.58 NCNT MWD CP30 13836.2 52687.8 FCNT MWD CP30 111.18 3318.22 RHOB MWD G/CM 1.98 3.19 DRHO MWD G/CM -0.17 0.77 PEF MWD B/E 1.13 6.73 Mean 8864.75 100.592 93.5618 87.2423 117.215 177.771 316.789 2.29886 19.8503 31374 950.026 2.30891 0.0142436 2.29762 First Reading For Entire File .......... 5274.5 Last Reading For Entire File ........... 12455 File Trailer Service name ............. STSLIB.001 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.002 Nsam 14362 14308 14280 1684 1684 1684 1684 1684 1595 1595 1595 1593 1593 1593 First Reading 5274.5 5301.5 5274.5 11580 11580 11580 11580 11580 11580 11580 11580 11597 11597 11597 Last Reading 12455 12455 12414 12421.5 12421.5 12421.5 12421.5 12421.5 12377 12377 12377 12393 12393 12393 Physical EOF File Header Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 5274.5 7333.0 ROP 5301.5 7361.0 $ LOG HEADER DATA DATE LOGGED: il-AUG-00 SOFTWARE SURFACE SOFTWARE VERSION: Insite 4.05.2 DOWNHOLE SOFTWARE VERSION: 65.41 DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT): 7361.0 TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 48.5 MAXIMUM ANGLE: 53.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY PB01562HG6 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 8.500 BOREHOLE CONDITIONS MUD TYPE: LSND HT MUD DENSITY (LB/G): 10.20 MUD VISCOSITY (S): 40.0 MUD PH: 9.1 MUD CHLORIDES (P?M): 800 FLUID LOSS (C3): 13.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 MUD AT MAX CIRCULATING TERMPERATURE: .000 MUD FILTRATE AT MT: .000 MUD CAKE AT MT: .000 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: $ # Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .lin Max frames per record ....... ~ ..... Undefined Absent value ...................... -999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD020 FT/H 4 1 68 4 2 GR MWD020 API 4 1 68 8 3 .0 104.6 .0 .0 Name Service Unit Min Max Mean Nsam DEPT FT 5274.5 7361 6317.75 4174 ROP MWD020 FT/H 1.4 482.29 143 4120 GR MWD020 API 9.49 125.09 72.2347 4118 First Reading For Entire File .......... 5274.5 Last Reading For Entire File ........... 7361 File Trailer Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.003 First Reading 5274.5 5301.5 5274.5 Last Reading 7361 7361 7333 Physical EOF File Header Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 7333.5 10197.0 ROP 7361.5 10238.0 $ LOG HEADER DATA DATE LOGGED: 15-AUG-00 SOFTWARE SURFACE SOFTWARE VERSION: Insite 4.05.2 DOWNHOLE SOFTWARE VERSION: 65.41 DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT): 10238.0 TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 46.5 MAXIMUM ANGLE: 50.8 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY PB01562HG6 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): 8.500 DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: LSND HT MUD DENSITY (LB/G): 10.10 MUD VISCOSITY (S): 43.0 MUD PH: 9.5 MUD CHLORIDES (PPM): 1000 FLUID LOSS (C3): 2.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 136.2 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD030 FT/H 4 1 68 4 2 GR MWD030 API 4 1 68 8 3 Name Service Unit Min Max Mean Nsam DEPT FT 7333.5 10238 8785.75 5810 ROP MWD030 FT/H 0.04 764.82 103.788 5754 GR MWD030 API 10.69 196.96 82.8027 5728 First Reading For Entire File .......... 7333.5 Last Reading For Entire File ........... 10238 File Trailer Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.004 First Reading 7333.5 7361.5 7333.5 Last Reading 10238 10238 10197 Physical EOF File Header Service name ............. STSLIB.004 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each ,bit run in separate files. BIT RUN NUMBER: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10197.5 ROP 10238.5 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY $ STOP DEPTH 11551.0 11590.0 17-AUG-00 Insite 4.05.2 65.41 Memory 11590.0 45.2 50.5 TOOL NUMBER PB01562HG6 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 8.500 11590.0 BOREHOLE CONDITIONS MUD TYPE: LSND HT MUD DENSITY (LB/G): 10.20 MUD VISCOSITY (S): 45.0 MUD PH: 9.3 MUD CHLORIDES (PPM): 1000 FLUID LOSS (C3): 1.6 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 MUD AT MAX CIRCULATING TERMPERATURE: .000 MUD FILTRATE AT MT: .000 MUD CAKE AT MT: .000 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD040 FT/H 4 1 68 4 2 GR MWD040 API 4 1 68 8 3 .0 143.6 .0 .0 Name Service Unit Min Max Mean Nsam DEPT FT 10197.5 11590 10893.8 2786 ROP MWD040 FT/H 0.33 1993.14 58.7759 2704 GR MWD040 API 37 354.32 164.617 2708 First Reading For Entire File .......... 10197.5 Last Reading For Entire File ........... 11590 File Trailer Service name ............. STSLIB.004 service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.005 First Reading 10197.5 10238.5 10197.5 Last Reading 11590 11590 11551 Physical EOF File Header Service name ............. STSLIB.005 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 5 .5000 DEPTH INCREMENT: FILE SUMMARY VENDOR TOOL CODE GR FET RPX RPS RPD NPHI NCNT FCNT RPM ROP PEF RHOB DRHO $ LOG HEADER DATA DATE LOGGED: SOFTWARE START DEPTH 11551 5 11580 0 11580 0 11580 0 11580 0 11580 0 11580 0 11580 0 11580.0 11590.5 11597.0 11597.0 11597.0 SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 12414.0 12421.5 12421.5 12421.5 12421.5 12377.0 12377.0 12377.0 12421.5 12455.0 12393.0 12393.0 12393.0 21-AUG-00 Insite 4.05.2 3.07 Memory 12455.0 39.1 48.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER DGR DUAL GAMMA RAY PB01670FGR4 EWR4 ELECTROMAG. RESIS. 4 PB01670FGR4 SLD STABILIZED LITHO DEN PB01606NL4 CTN COMP THERMAL NEUTRON PB01606NL4 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.000 BOREHOLE CONDITIONS MUD TYPE: Quikdril-N MUD DENSITY (LB/G): 8.40 MUD VISCOSITY (S): 39.0 MUD PH: 9.5 MUD CHLORIDES (PPM): 1000 FLUID LOSS (C3): 8.7 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): 1.400 MUD AT MAX CIRCULATING TERMPERATURE: .751 MUD FILTRATE AT MT: 1.000 MUD CAKE AT MT: 1.900 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 80.0 155.0 80.0 80.0 Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD050 FT/H 4 1 68 4 2 GR MWD050 API 4 1 68 8 3 · RPX MWD050 OHMM 4 1 68 12 4 RPS MWD050 OHMM 4 1 68 16 5 RPM MWD050 OHMM 4 1 68 20 6 RPD MWD050 OHMM 4 1 68 24 7 FET MWD050 HR 4 1 68 28 8 NPHI MWD050 PU-S 4 1 68 32 9 NCNT MWD050 CP30 4 1 68 36 10 FCNT MWD050 CP30 4 1 68 40 11 RHOB MWD050 G/CM 4 1 68 44 12 DRHO MWD050 G/CM 4 1 68 48 13 PEF MWD050 B/E 4 1 68 52 14 Name Service Unit Min Max Mean Nsam DEPT FT 11551.5 12455 12003.3 1808 ROP MWD050 FT/H 1.47 2155.01 54.3229 1730 GR MWD050 API 14.29 538.78 68.6689 1726 RPX MWD050 OHMM 1.63 1850.32 87.2423 1684 RPS MWD050 OHMM 1.42 2000 117.215 1684 RPM MWD050 OHMM 1.44 2000 177.771 1684 RPD MWD050 OHMM 0.32 2000 316.789 1684 FET MWD050 HR 0.54 73.26 2.29886 1684 NPHI MWD050 PU-S 5.3 62.58 19.8503 1595 NCNT MWD050 CP30 13836.2 52687.8 31374 1595 FCNT MWD050 CP30 111.18 3318.22 950.026 1595 RHOB MWD050 G/CM 1.98 3.19 2.30891 1593 DRHO MWD050 G/CM -0.17 0.77 0.0142436 1593 PEF MWD050 B/E 1.13 6.73 2.29762 1593 First Reading For Entire File .......... 11551.5 Last Reading For Entire File ........... 12455 File Trailer Service name ............. STSLIB.005 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 02/05/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.006 First Reading 11551.5 11590.5 11551.5 11580 11580 11580 11580 11580 11580 11580 11580 11597 11597 11597 Last Reading 12455 12455 12414 12421.5 12421.5 12421.5 12421.5 12421.5 12377 12377 12377 12393 12393 12393 Physical EOF Tape Trailer Service name ............. LISTPE Date ..................... 02/05/13 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Next Tape Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Reel Trailer Service name ............. LISTPE Date ..................... 02/05/13 Origin ................... STS Reel Name ................ UNKNOWN Continuation Number ...... 01 Next Reel Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Scientific Technical Services Physical EOF Physical EOF End Of LIS File