The URL can be used to link to this page

Home My WebLink About195-033Pages NOT Scanned in this Well History File XHVZE This page identifies those items that were not scanned during the initial scanning project. They are available in the original file and viewable by direct inspection. 1~5 ,..~'~,.~ File Number of Well History File PAGES TO DELETE Complete RESCAN [] Color items - Pages: Grayscale, halftones, pictures, graphs, charts- Pages: Poor Quality Original- Pages: [] Other- Pages: DIGITAL DATA [] Diskettes, No. [] Other, No/Type OVERSIZED [] Logs of various kinds [] Other COMMENTS: Scanned by: Bevedy~Vincent TO RE-SCAN Nathan Lowell Notes: Re-Scanned by: Bevedy Dianna Vincent Nathan Lowell Date: Is~ `~ Page 1 of 1 • `~~~ Fleckenstein, Robert J (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Thursday, December 11, 2008 3:19 PM To: Fleckenstein, Robert J (DOA) Subject: FW: Errors found on these two 10-407's Attachments: 18-24AL1 Corrected 10-407, 12-11-08.pdf; 18-24A Corrected 10-407, 12-11-08.pdf Hi Bob, I had already sent these corrected copies before you called back. Did !cover it? Let me know... Terrie From: Hubble, Terrie L Sent: Thursday, December 11, 2008 12:23 PM To: 'Saltmarsh, Arthur C (DOA)' Subject: Errors found on these two 10-407's 6~~J~~~~~ ~~y~ ~ ~ ~~ Hi Ark, We just found some errors on these two Completion Reports. I have made the hand corrections, but thought I ought to send them to you so that your files would show the corrections as well. Thanks! Terrie PS -Bob Fleckenstein just called on them too. 12/15/2008 • STATE OF ALASKA . ~~~~~"~ ALASKA OfL AND GAS CONSERVATION COMMISSION ~ ~'~ ~ ~ ~ ~ ~'~~` WELL COMPLETION OR RECOMPLET{ON REPORT AND LOG 1 a. Well Status: ^ Oil ^ Gas ^ Plugged ~ Abandoned ^ Suspended zaAACZS.,~ zoaACZS.,ro ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Com bons Zero 1 b. Well Class; ~ Development ^ Exploratory ^ Servile ^ Strati raphic 2. Operator Name: BP Ex (oration Alaska) inC. 5. Date Comp„ asp., Abend. 1U{ 12. Permit to Drill Number 185-033 308-325 3. Address: P.O. Box 196612, Andtora e, Alaska 99519-6612 6. Date Spudded 04/18/1995 13. APt Number 50.029-21952-01.00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 05!20/1995 14. Welt Name and Number: PBU 18-24A 4293 FSL, 4598 FEL, SEG. 19, T11 N, R15E, UM Top of Productive Horizon: 2~~ FSt., 3o1f EL, SEC. 24, T11N, R14E, UM g KB (ft above MSL): 48.65` Ground (ft MSL); i8.1' 15. Field ! Pools}: Prudhoe Bay Field / Prudhoe Bay Total Depth: t.{~ FSL, ~t ~ ~ f EL, SEC. fit{, T11 NI Ri E, UM 9. Plug Back Depth (MD+TVD} 8891' 8509" Pool 4b. Location of We11(State Base Plane Coordinates, NAD 27): Surface: x- 692117 y- 5960890 Zone- ASP4 10. Total Depth (MD+TVD) ITT' 8759' 16. Property DesignatDn: ADt_ 0.8,307 TPI: x- (p ~~~ y- {3f~L Zone- ASP4 'Total Depth; x- i 4QA7 y- 592one- ASP4~m 11. SSSV De~tA(MD+TVD} 17. Land Use Permit: p 18. Directional Survey ^ Yes ~ No 19. Water depth, if offshore N!A ft MSL 20. Thickness of Permafrost (TVD): 1900' (Approx,j 21. Lags Obtained (List all logs here and submit electronic and printed information per20 AAG 25.071): GR 1 NEU / ftES 22. CASING, LINER AND CEMENTING RECORD CASING STETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT WT. PER FT. GRADE TDP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD.. PULLED ,~ ' ~. ~ " 1000 sx CS Ill, 350 sz'G' 230 sx CS i( ~. 1 ~ w /# ~ I 1 1 H l f t q N ~ J 1 \ h' 23. Open to production or inject ion? ^ Yes ~ No 24. TueING RE~OKD If Yes, I~t each interval open (MD+TVD of Top $~ Bottom; Perforation Size :and Number): ~~ DEPTH SET MO PACKER SET MO N/A MD 7VD MD TVD 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL MQ AMOUNT & KIND of MATERIAi USED 9100' Set !BP 904x' Set Sand Plu 8891 ` Kick Off Pt vr114 Bbls of Class 'G' (05/1011 999 26. PRQDUCTiorr TEST. Date First Production: Not on Production Method of Operation (Flowing, Gas Lift, etc.): N/A Date of Test:: Hours Tested: PRODUCrraN Foh fiesT PERIOD OIL~BaL: GAS-Mce WATER-BBL: CHOKE Size: GAS-0311.. RATID: . FlowTubing Press. Casing Pre8S: CALCULATED .. 2A-Noun RATE OIL-Bel: Gas-Mcl:: W~TER-BBI: QIL GRAVI7Y-API (CORK): 27. CORE Darn COnventiopal Core s A aired? Q Yes ~ No Sidewal t Cores aired? Yes No If Yes ko either question, Itst formations and intervals cored (MD+TVD of top and bottom of each), end summarize 1'IU,otogy and presence of oil, gas or water (submit separate sheets with this form, if deeded), Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. None Farm 70-407 Keviseu Uzizuu7 (rONTtpitlEO UN KEVERSE SIDE a`~U G ..~ .: ~ , ~-~ ~ ?aoa /~ ~~'~ J' STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ^ Oil ^ Gas ^ Plugged ®Abandoned ^ Suspended 20AAC 25.105 2oMC 2s.~ ~o ^ GINJ ^ WINJ ^ WDSPL ^ WAG ^ Other No. of Completions Zero 1 b. Well Class: ®Development ^ Exploratory ^ Service ^ Stratigraphic 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Com~Sus®r Aba , 95/10/1999 12. Permit to Drill Number 195-033 - 308-325 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded 04/18/1995 13. API Number 50-029-21952-01-00 4a. Location of Well (Governmental Section): Surface: ' ' 7. Date T.D. Reached 05/20/1995 14. Well Name and Number: PBU 18-24A 4293 FSL, 4598 FEL, SEC. 19, T11N, R15E, UM Top of Productive Horizon: 2451' FSL, 15' FEL, SEC. 24, T11 N, R14E, UM 8. KB (ft above MSL): 48.65' Ground (ft MSL): 18.1' 15. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Total Depth: 1600' FSL, 4080' FEL, SEC. 19, T11 N, R15E, UM 9. Plug Back Depth (MD+TVD) 8891' 8509' Pool 4b. Location of Well (State Base Plane Coordinates, NAD 27): Surface: x- 692117 y- 5960890 Zone- ASP4 10. Total Depth (MD+TVD) 9977'- 8759' ~ 16. Property D signation: ~?~,30~ ADL 028321 TPI: x- 691793 y_ 5959039 Zone- ASP4 Total Depth: x- 692714 y- 5958212 Zone- ASP4 11. SSSV DeN A(MD+TVD) 17. Land U e Permit: 18. Directional Survey ^ Yes ®No bmit ele tonic n ri inf rm i n r 20 AA 2 . 19. Water depth, if offshore N/A ft MSL 20. Thickness of Permafrost (TVD): 1900' (Approx.) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): GR/NEU/RES 22. CASING, LINER AND CEMENTING RECORD CASING SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 0" 1. 14' rf 1 4' 0" 1 P les " 1000 sx CS III 350 sx'G' 230 sx CS II 7- L-8 77 9-7/ " x I 'G' /" NT- 4 4 7 6-3/4" I 32 x ' " - / " 1 1 1 1 II 23. Open to production or inject ion? ^ Yes ®No 24. T uewG RECORD If Yes, list each i (MD+TVD of Top & Bottom; Pe nterval open rforation Size and Number): SIZE DEPTH .SET MD PACKER .SET MD N/A MD TVD MD TVD 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL MD AMOUNT S~ KIND OF MATERIAL USED 9100' Set IBP 9045' Set Sand Plug 8891' Kick Off Plug w/ 11 Bbls of Class'G' (05/10/1999) 26. PRODUCTION TEST Date First Production: Not on Production Method of Operation (Flowing, Gas Lift, etc.): N/A Date Of Test: HOUfS Tested: PRODUCTION FOR TEST PERIOD OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Flow Tubing Press. Casing Press: CALCUwreD 24-HouR RATE..' OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API (CORK): 27. CORE DATA Conventional Core(s) Acquired? ^ Yes ~ No Sidewal l Cores Ac uired? ^ Yes ®No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. ,. , .. ,i; None "~ ~~~0 ( ~'t ~ ( $ PYw Form 10-407 Revised 02/2007 ! t `~ NTINUED ON REVERSE SIDE ..,„„ , Iti ~~ C SSI 28. GEG"LOGIC MARKERS (LIST ALL FORMATIONS AND RS ENCOUNTERED): 29. FORMATION TESTS NAME MD TVD Well Tested . ^ Yes ®No Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Sag River 8510' 8188' None Shublik 8560' 8232' Sadlerochit 8638' 8300' Zone 3 8778' 8419' Zone 2 8843' 8472' Zone 1 B 9240' 8701' Formation at Total Depth (Name); 30. List of Attachments: Summary of Pre-Rig Work and Daily Drilling Reports, Well Schematic Diagram 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Si d `t/~1 ~ ~ gne Title Drilling Technologist Date t Terrie Hubble PBU 18-24A 195-033 308-325 Prepared By NameMumher.• Terrie Hubble, 564-4628 Well Number Permit No. / A royal No. Drilling Engineer: Ron Phillips, 564-5913 INSTRUCTIONS GeNeRAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. IreM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. IreM 4b: TPI (Top of Producing Interval). ITeM 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). ITeM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. ITeM 29: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 02/2007 Submit Original Only ' 18-24AL2 • DESCRIPTION OF WORK COMPLETED COILED TUBING SIDETRACK DRILLING OPERATIONS SUMMARY Date Event Summary 5/05/1999: RIH & ran GR/CCL log f/ 8500' to 9200' MD. Set IBP fe3 9100' to isolate the 18-24A & 18• 24AL1 producing intervals of this well. 5/07/1999: MIRU CTU. 5/08/1999: Continue to MIRU. 5/09/1999: Cont. MIRU CTU. PT'd BOPE. RIH & tagged IBP ~ 9094' MD. Performed press test -bled f/ 1500 to 1380 psi in 10 min. Dumped a gelled sand slurry consisting of 700 Ibs of 20/40 mesh River Sand f/ 9094' to 8940' to form a sand lu above the IBP. PUH to safety. RBIH & tagge ___ 9046'. A total of 48' of sand ontop of the IBP. 5/10/1999: Pumped 11 bbls of 17~p4 Class G Cement to_form a KOP. Contaminated Cement w/ Biozan & cleaned contaminated Cement from the wellbore to 8743' MD. POOH w/ CT. WOC. RIH & UR'd f/ 8743' - 8779'. POOH w/ UR. RIH & drilled pilot hole to 8790'. 5/11/1999: Drilled Cement to 8881.5' & POOH. RIH & began time milling the 5-1/2" Liner. Milled to 8882'. PU off BTM, but tagged up ~ 8877'. Unable to get back to window. POOH. 5/12/1999: RIH & UR'd f/ 8700' - 8874'. BHA plugs up ~ 8874' -could not circulate. POOH w/ BHA. RIH & reamed to 8874'. PUH to 8700' & performed press test on wellbore -bled f/ 2300 to 850 psi in 10 min. RBIH & milled to 8882'. POOH. 5/13/1999: RIH w/window mill & tagged TOC (~ 8882'. Time milled to 8892' & POOH. 5/14/1999: PT'd wellbore to 2100 psi -bled to 1550' in 15 min. RIH & milled window f/ 8891' - 8895'. Drilled into FM to 8902'. Press wellbore to 2000 psi -bled to 1100 psi in 5 min. Circulated Biozan. 5/15/1999: Circulated KCL Water & POOH. RIH w/ Crayola mill & dressed window interval. Performed infectivity test: 0.4 bpm = 1000 psi WHP 8~ 1.0 bpm = 1950 psi WHP. Circulated Maraseal oel. Squeezed 13 bbls into FM leaving gel plug ~ 8800'. POOH. 5/16/1999: PT'd BOPE. RIH w/ bi-centered bit & performed LOT to EMW of 9.49 ppg. Drilled to 9002'.. 5/17/1999: Drilled to 9029' MD & swapped to new mud. POOH. RIH & drilled to 9565'. 5/18/1999: Drilled to 9665' & POOH. RIH & drilled to 9700'. 5/19/1999: Drilled to 9959' & swapped to new mud. Drilled to 10246' w/short trips. to window. 5/20/1999: Drilled to TD ~ 10489'. Conditioned OH & POOH. 5/21/1999: RIH w/ 3-3/16" liner & landed it ~ 10486'. TOL = 8808'. LC =10451'. Cemented liner in place w/ 21.5 bbls of 15.8 ppg LARC. Plug bumped. Unstung f/ liner & cleaned up wellbore w/ Biozan. POOH. RIH w/ CNL mem logging tools. Sidetrack Summary Page 1 Digital Well File ~ ~ Page 1 of 1 Well: 18-24 Well History Well Date Summary 18-24AL2 8/31/2008 T/IA/OA= 2000/600/300 Temp=Sl PPPOT-T (PASS) PPPOT-IC (FAIL) (Pre CTD) PPPOT-T RU 2 HP BT onto THA test void, 100 psi to 0 psi, flushed void until clean returns achieved. Pressured to 5000 psi for 30 minute test, 5000/ 15 minutes, 5000/ 30 minutes. Bled void to 0 psi, RD test equipment, cycled LDS out 1.0" ran in torqued "ET style" all were in good working condition. PPPOT-IC RU 2 HP BT onto IC test void, 200 psi to 0 psi, flushed void until clean returns achieved. Pressured to 3500 psi for 30 minute test, 2800/ 15 minutes, 1500/ 30 minutes. Bled void to 0 psi, RD test equipment, cycled LDS out 1.0" ran in torqued "ET style" (1) LDS is was not cycled due to location behind SSO C~ 1:00 position all others were in good working condition. 18-24AL2 8/31/2008 T/I/0=2000/550/300 Temp=S1. MIT IA PASSED 3000 qsi, MIT OA PASSED 2000 psi (Pre CTD) Pressured IA to 3000 psi with 5 bbls meth and 4.4 bbls crude for MIT IA. IA lost 140 psi in 1st 15 min and 40 psi in 2nd 15 min for a total loss of 180 psi in 30 min. Bled IA to 540 psi (-3 bbls). Pressured OA to 2000 psi with 2.3 bbls crude for MIT-OA. OA lost 60 psi in 1st 15 minutes and 20 psi in 2nd 15 minutes for a total loss of 80 psi in 30 mins. Bled OA to 300 psi (- 1.5 bbls). FWHPs = 2000/560/300. Valve positions at time of departure; Swab closed, Wing closed, SSV open, Master open, IA open, OA open. 18-24AL2 9/1/2008 T/I/O=SSV/560/320. Temp=Sl. IA & OA FL's (pre CTD). AL disconnected. IA FL C~3 250' (5 bbls). OA FL 50 ' (2 bbls). SV, WV, SSV=C. MV=O. IA & OA=OTG. BP pump truck on well. NOVP. 18-24AL2 9/21/2008 CTU #9 w/1.75" OD CT. Dummy whipstock drift. MIRU. MU and RIH with 2.70" dummv whipstock. Continued on 9/22/08 WSR. 18-24AL2 9/22/2008 CTU #9 w/1.75" OD CT. Dummy whipstock drift. Continued from 9/21/08 WSR. Drift with 2.70" x 14' dummv whipstock drift to 9400' ctmd POOH. Freeze protect tubing with 38 bbls 50/50 methanol. Secure well and notify DSO of well status. RDMO. Job Complete 18-24AL2 9/22/2008 test master valve pre ctd 18-24AL2 9/23/2008 T/I/0=700/400/225. Set 4" CIW H BPV. Pre Nordic 1. 18-24AL2 10/7/2008 T/I/O = BPV/510/310. Temp = SI. Bleed IAP & OAP to 0 psi (pre-Rig). IA FL C 54'. OA FL near surface. Bled OAP from 310 psi to 180 psi in 2 minutes (FTS), will not bleed below 180 psi. Bled IAP from 510 psi to 310 psi in 7 minutes (FTS), will not bleed below 310 psi Bled OAP from 180 ~ is to 0 nsi in S hrs (multiple bleeds). Bled IAP from 310 psi to 0 psi in 8 hrs (multiple bleedsl. Monitored for 30 minutes, no change in pressures. Final WHPs =BPV/0/0. SV,WV,=C MV,SSV=O IA,OA=OTG NOVP. Print Date: 10/30/2008 Page 1 of 1 http://digitalwellfile.bpweb.bp.com/WIInfo/Reports/ReportViewer.aspx 10/30/2008 BP .EXPLORATION Page 1 of 8 Operations Summary Report Legal Well Name: 18-24 Common Well Name: 18-24 Spud Date: 6/30/1989 Event Name: REENTER+COMPLETE Start: 10/6/2008 End: 10/20/2008 Contractor Name: NORDIC CALISTA Rig Release: 10/20/2008 Rig Name: NORDIC 1 Rig Number: Date From - To Hours Task Code NPT Phase Description of Operations 10/9/2008 10:00 - 12:00 2.00 MOB P PRE Move rig from 18-14 to 18-24 12:00 - 16:00 4.00 RIGU P PRE ND tree cap. NU BOP. 16:00 - 18:00 2.00 BOPSU P PRE Pressure test BOP. AOGCC representative Chuck Sheeve waived witnessing test. 18:00 - 20:00 2.00 BOPSU N SFAL PRE Found hydraulic leak on blind rams, disassembled hydraulic cylinder, installed new O-rings /reassembled /test good 20:00 - 00:00 4.00 BOPSU P PRE Pressure test BOP. Swab valve not holding, regreased AOGCC representative Chuck Sheeve waived witnessing test. 10/10/2008 00:00 - 03:00 3.00 BOPSU P PRE Finish Pressure testing BOP Blind rams failure, R&R ram seal Test good 03:00 - 03:15 0.25 BOPSU P PRE PJSM for removing the BPV, discuss procedure, hazards and mitigations 03:15 - 04:15 1.00 RIGU P PRE Test lubricator to 2000 psi, Pull BPV. Load out BPV equipment. 04:15 - 06:00 1.75 RIGU P PRE Prep to Pump slack management Pump 42 bbls to fill coil, reverse circ ~ 3.5 bpm, 4400 psi. Pumped zero slack, a-line is still ~ end of coil. Cut 10' of coil . Test a-line 06:00 - 08:30 2.50 RIGU P PRE Behead BHI equipment. Pull test CTC 35K . PT to 4500 psi. PT inner reel valve. Install check valves. PU injector and stab onto well. 08:30 - 09:35 1.08 KILL P WEXIT Bullhead kill well with water thru kill line .Circulate coil to warm CT. Open well 680 psi. Bullhead with both pumps. Bullhead 265 bbls. 09:35 - 09:55 0.33 KILL P WEXIT Flow check well. Slight flow. 09:55 - 10:25 0.50 KILL P WEXIT Bullhead 170 bbl 2# bio to perforations. Shut master valve. 10:25 - 10:45 0.33 KILL P WEXIT Circulate CT to warm coil.Displace CT to Bio. 10:45 - 11:15 0.50 KILL P WEXIT Flow check well. Well dead. 11:15 - 11:50 0.58 WHIP P WEXIT PU whipstock assembly. 11:50 - 14:00 2.17 WHIP P WEXIT RIH 9,160' 14:00 - 15:10 1.17 WHIP P WEXIT Tie-in log. Correction +1'. 15:10 - 15:20 0.17 WHIP P WEXIT RIH to place top of WS at 9310'. Close EDC.TF 270RHS. Pressure to 3800 psi. Stack 4K. OK PU 27K. 15:20 - 17:00 1.67 WHIP P WEXIT POH. 17:00 - 17:45 0.75 WHIP P WEXIT LD WS setting tools and PU milling assy. 17:45 - 19:45 2.00 STWHIP P WEXIT RIH w/ window milling assembly 19:45 - 20:00 0.25 STWHIP P WEXIT Dry tag WS, PU 10' and RIH w/ pumps on, flag pipe up wt-22K, FS 2340 si CC~~ WEXIT Begin milling window ' 3~ 20:00 1.46/1.46 bpm, 2440 psi, DWOB - 0.46K, 9310 i8..2y$ 21:00 1.45/1.45 bpm, 2570 psi, DWOB - 1.73K, 9310.1' 22:00 1.45/1.45 bpm, 2690 psi, DWOB - 2.14K, 9310.5' 23:00 1.44/1.44 bpm, 2540 psi, DWOB - 1.92K, 9111.1' Stall at 9111.1, PU and time drill down ~ 1'/hr 10/11/2008 00:00 - 03:45 3.75 STWHIP P WEXIT Continue milling 00:30 2629 psi, 1.46/1.46 bpm, DWOB - 1.42K, 9311.1' 01:30 2430 psi, 1.45/1.45 bpm, DWOB - 0.84K, 9311.4' 02:00 2470 psi, 1.45/1.45 bpm, DWOB - 1.15K, 9312.2' 03:00 2440 psi, 1.49/1.49 bpm, DWOB - 1.68K, 9313.0' Stall w/ decrease in DWOB and motor work, window exit at 9313.6' 03:45 - 05:00 1.25 STWHIP P WEXIT Drill 10 ft of rathole to 9324 ft at 10 ft/hr. Printetl: 10/302008 11:27:06 AM /ELLHEAD = FMC .CTUATORr= BAKER C B. ELEV` = 48.6' F. ELEV = N/A OP = 4900' lax Angle = 97 @ 9855' /alum MD = N/A /alum TVD = 8800' SS SAFETY NOTES: MULTILATERAL WELL W/ 3 1 ~ _~ ~ ~ ., LEGS # 1 ~ 2 ISOLATED BY IBP @ 9100' D R LG D R 8 OF SAND?. WELL ANGLE > 70 @ 9271' 81 > 90° @ 9517'. • 2207' 4-1/2" CAMCO TRCF-4A-TRSSSV, ID = 3.81 LOCKED OUT(07/29/95) GAS LIFT MANDRELS 10-3/4" CSG, 45.5#, L-80, ID = 9.950" ~ 3506' Minimum ID = 2.786" @ 8816' 3-1 /2" X 3-3/16" LNR X-OVER TOP OF TIEBACK SLV, ID = 5.75" 4651' 7-5/8" X 5-1/2" BKR H PKR, ID = 4.813" 4658' 7-5/8" X 5-1/2" SLH-6 HGR, ID = 4.875" 4664' 3-1/2" X 3-3/16" LNR XO, ID - 2.786" 4700 7-5/8" X 5-1/2" BKR LNR HGR ASSY 7$54' BTM OF BKR SEAL ASSY, ID = 4.875" 7860' 7-5/8" CSG, 29.7#, L-80, ID = 6.875" $005' 6.2#, L-80, .0076 bpf, ID = 2.786" ~~ 8592' 3-3/4" BKR DEPLOYMENT SLV, ID = 3.00" ~-~ 8808' 3-1/2" X 3-3/16" LNR XO, ID = 2.786" ~-i 8816' ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3020 3019 2 KBMG DMY BK 0 08/15/95 2 4522 4520 3 KBMG DMY BK 0 04/07/08 4622' 7-5/8" X 4-1/2" BKR S-3 PKR, ID = 3.875" 4645' 4-1/2" HES X NIP, ID = 3.813" 4631' BTT Deployment sleeve w / 4" GS Profile 4656' 4-112" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958 4658' 4-1/2" WLEG, ID = 3.958" ELMD TT NOT LOGGED 8595' I-I TOL 2-3/8", TOC 5-1/Z" MILLOUT WINDOW (18-24AL2) 8891' - 8895' 9311' ~~ 3-3116" packer w hipstock 5-112" LNR, 17#, L-80, .0232 bpf, ID = 4.892" ~ 9485' PERFORATION SUMMARY REF LOG: MCNL 10/18/08 ANGLE AT TOP PERF: 88 @ 9730' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 1.56 6 9730 - 10150 O 10/19/08 1.56 6 10280 - 10350 O 10/19/08 1.56 6 10410 - 10600 O 10/19/08 1.56 6 10670 - 10710 O 10/19/08 1.56 6 10750 - 10850 O 10/19/08 1.56 6 10960 - 11180 O 10/19/08 PBTD 11215' 2-318" L-80 LINER. Cemented & Pertorated ~ 11250' FISH-DUAL PETREDAT GAUGES (08/11/07) PBTD 10451' 3-3/16" LNR, 6.2#, L-80, .0076 bpf, ID = 2.786" ~ 10486' 18-24AL2 (LEG #3) DATE REV BY COMMEMS DATE REV BY COMMENTS 07/17/89 ORIGINAL COMPLETION 10/19/08 NORDIC1 CTD SIDETRACK (18-24B) 05/01/95 RIG SIDETRACK (18-24A) 10/25/08 /TLH CORRECTIONS 05/27/95 CTD-EXTEND WELL-2-7/8"LN 10/25/95 CTD (18-24AL1) 05/24199 CTD (18-24AL2) 111/'/U111'll !'H/K/\k 1I'l 1VNtif'l ll ll~lt q 1 1 PRUDHOE BAY UNfT WELL: 18-24B PERMIT No: API No: 50-029-21952-02 SEC 19, T11 N, R15E, 4293' NSL & 4598' WEL I 1 co c....l....,~~.,., rn1...-~~\ • ALAS$A OIL A1~TD GA.S COI~TSERQATI011T COMI~IISSIOI~T John McMullen Engineering Team Leader BP Exploration Alaska Inc. v~ $ ~ ~ ~ ~ ~~~~ SARAH PAL/N, GOVERNOR 333 W. 7th AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 PO Box 196612 D ~~, Anchorage, AK 99519-6612 ~ ~ 5 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 18-24A Sundry Number: 308-325 Dear Mr. McMullen: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (90~ 659-3607 (pager). As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for rehearing. A request for rehearing is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. A person may not appeal a Commission decision to Superior Court unless rehearing has been requested. Sincerely, Cathy . Foerster Commissioner DATED this ~~ day of September, 2008 • Encl. T -- a 06~~ S EP ~ 0 2(~ ;' STATE OF ALASKA ~C~',, ,- ~// ALAS~IL AND GAS CONSERVATION COMMISS~N ~, ,~;, t~:,~;~„~~t~~rs~~h~l APPLICATION FOR SUNDRY APPROVAL `~~°~„v~9 ~'~ ~` ~~`' ~~~-~ 20 AAC 25.280 ~`'~fiC~E~'S"~.~i~`~' 1. Type of Request: ®Abandon ^ Suspend ^ Operation Shutdown ^ Perforate ^ Time Extension ^ Atter Casing ^ Repair Well ^ Plug Perforations ^ Stimulate ^ Re-Enter Suspended Well ^ Change Approved Program ^ Pull Tubing ^ Perforate New Pool ^ Waiver ^ Other 2. Operator Name: BP Exploration (Alaska) Inc. 4. Current Well Class: ®Development ^ Exploratory 5. Permit To Drill Number 195-033 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 ^ Service ^ Stratigraphic 6. API Number: 50-029-21952-01-00 7. If perforating, closest approach in pool(s) opened by this operation to nearest property line where ownership or landownership changes: Spacing Exception Required? ^ Yes ®No 8. Well Name and Number: PBU 1&24A 9. Property Designation: ADL 028321 10. KB Elevation (ft): 48.65' 11. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay Pool 12• PRESENT WELL CONDITION SUM MARY Total Depth MD (ft): 9977' Total Depth TVD (ft): 8759' Effective Depth MD (ft): 8891' Effective Depth TVD (ft): 8509' Plugs (measured): 8891' Junk (measured): None i i 1 - 14" T 4 i 1 7' - 7 Perforation Depth MD (ft): None Perforation Depth TVD (ft): None Tubing Size: 4-1/2", 12.6# Tubing Grade: L-80 Tubing MD (ft): 4658' Packers and SSSV Type: 7-5/8" x 4-1/2" Baker'S-3' packer Packers and SSSV MD (ft): 4622' 13. Attachments: ® Description Summary of Proposal ^ BOP Sketch ^ Detailed Operations Pro ram 14. Well Class after proposed work: ^ Exploratory ®Development ^ Service 15. Estimated Date for Commencin O erations: October 15, 2008 16. Well Status after proposed work: ^ Oil ^ Gas ^ Plugged ®Abandoned 17. Verbal Approval: Date: Commission Re resentative: ^ WAG ^ GINJ ^ WINJ ^ WDSPL 18. I hereby certify that the foregoing 's tr e I Corr a to the best of my knowledge. Contact Ron Phillips, 564-5913 Printed Name John iAull Title En ineerin Team Leader C~ Prepared By Name/NuMer: Signature Phone 564-4711 Date/ ~~ Terris Hubble, 564-4628 Commission Use Onl Sundry Number: Conditions of approval: Notify Commission so that a representative may witness ^ Plug Integrity BOP Tes.,,t ^ Mechanical Integrity Test ^ Location Clearance Other: 3S~® P5 < ~ ~ ~ -~~ ~, Subsequent Form Required: ~~~ APPROVED BY /~ s1 p A roved B : COMMISSIONER THE COMMISSION Date 7 ~ - l/ tJ Form 10-403 Revised 06/?,606 Submit In Duplicate ~_ (~ ~ V ~~ fly..llt V • • To: Tom Maunder, Petroleum Engineer Alaska Oil & Gas Conservation Commission "~~ ' ' ~'~' From: Ron Phillips i CTD Engineer ~~ Date: August 25, 2008 Re: 18-24A sundry request Sundry approval is requested for Prudhoe well 18-24AL2. The parent wellbore, 18-24A~ was drilled as a rig. sidetrack in May 1995 with a slotted liner completion. The well produced very little oil and a second slotted liner leg (18-24AL1) was drilled with coil in October 1995. This additional leg restored the well to full-time status for a year and a half, followed by almost 2 years of cycling. In Ma 1999, an IBP, sand and cement whivstock were set at 9100' to isolate 18-24A and 18-24AL1, and the well was si etrac ce wit coi to its current location. Although the well was named 18-24AL2, there is only one leg currently open and it is not possible to return to the parent wellbores. 18-24AL2 has 775' of Z1A perfs open, and required gas lift to flow for the first 2 years of production. After 3-1/2 years of full-time production, the well was choked back in an effort to control the GOR and then monthly hot oil treatments were begun to try to boost the rate. The effect of choking back this well was a negligible impact on gas rate paired with an immediate 200+ bopd oil rate impact. Ultimately, the higher backpressure associated with the lower choke setting dropped the oil rate to an average of less than 400 bopd, and finally the well would no longer produce liquids. After being shut in for almost 3 years for no flow, aloes-pressure test was performed that brought in about 200bopd. This test demonstrated the well's sensitivity to choke setting but was not a high enough rate to keep in competitive with the current GPB well stock. Mechanically the well is in sound condition. It passed it's pressure testing (MITIA and MITOA) and had a caliper run in April 2008. The caliper showed the tubing to be in very good condition with no significant areas of wall penetration or cross-sectional loss noted. The 5-1/2" liner is in slightly worse condition with 40-50% penetrations noted in 5 joints. The liner is still in sufficient condition to sidetrack. 18-24A has been shut in for almost 3 years due to lack of fluid production. Although slow-pressure, open choke test showed the well to be capable of producing 200+ bopd, that rate is not sufficient for the well to be competitive with the current GPB well stock. The following describes work planned and is submitted as an attachment to Form 10-403. A schematic diagram of the proposed sidetrack is attached for reference. Pre-Rig Work: 1. MIT-IA, and OA. 2. Dummy WS (15' x 2.625") drift to 9340' 3. Set BPV 4. AC-LDS; AC-PPPOT-T 5. Test MV, SV, WV 6. Bleed gas lift and production flowlines down to zero and blind flange 7. Remove wellhouse, level pad The pre CTD work is slated to begin on October 15th, 2008. ~~ZS Svr ~ Rig Work: 1. MIRU and test BOPE to 250 psi low and 3500 psi high, Pull BPV 2. Set 3-3/16"monobore Hacker whivstock @ 9300'. 3. Mi112.74" window at 9300' and 10' of open o e. wap t ewe to o- ro. 4. Drill Build: 3" OH, 380', 30 deg/100 (plan #1) 5. Drill Lateral: 3" OH, 1,520' horizontal, 12 deg/100 (plan #1) 6. Run 2 3/8" solid liner leaving TOL at 8700'. 7. Pump primary cement job to TOL, 11.3 bbl of 15.8 ppg cmt planned. 8: Run CO assembly 9. Run MCNL/GR/CCL log ~ 10. Test liner lap to 2000 psi. 11. Perforate, planned 1000ft. 12. Freeze protect well, Set BPV, RDMO Post-Rig Work: L Pull BPV 2. Re-install wellhouse and FL's. 3. Generic GLV design Ron Phillips CTD Drilling Engineer 564-5913 CC: Well File Sondra Stewman/Terrie Hubble TREE= 4-1/16" CMJ WELLHEAD = FMC ACTUATOR = BAKER C KB. ELEV = 48.6' BF. ELEV = NIA KOP = 4900' Max Angle = 97 @ 9855' Datum MD = NIA Datum TVD = 8800' SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 2 3020 4522 3019 4520 2 3 KBMG KBMG DMY DMY BK BK 0 0 08/15/95. 04/07/08 GAS LIFT MANDRELS SAFETY NOTES:. MULTILATERAL WELL W/ 3 -24AL~ 4SAND. WELLANGLE® 0° @ g~ 9100' W/ 10-3/4" CSG, 45.5#, L-80, ID = 9.950" ~--~ 3506' Minimum ID = 2.786" @ 8816' 3-1 /2" X 3-3/16" LN R X-OVER TOP OF TIEBACK SLV, ID = 5.75" 4651' 7-5/8" X 5-1/2" BKR H PKR ID = 4.813" 4658' 7-5/8" X 5-1 /2" SLH-6 HGR ID = 4.875" 4664' 17-5/8" X 5-1/2" BKR LNR HGR ASSY BTM OF BKR SEAL ASSY, ID = 4.875" i-i 7860' ~ 7-5/8" CSG, 29.7#, L-80, ID = 6.875" ~ 3-3/4" BKR DEPLOYMENT SLV, ID = 3.00" i-i 8808' 3-1/2" X 3-3/16" LNR XO, ID = 2.786" ~-~ 8816' 4.8~' I-{ 7-5/8"X4-1 /2" BKR S-3 PKR, ID = 3.875" 4-1 /2" HES X NIP, ID = 3.813" 1/2" CAMCO TRCF-4A-TRSSSV, ID = 3.812" LOCKED OUT(07/29/95) ~ 4-1l2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" ~ 4658' -14-1/2" WLEG, ID = 3.958" ~~ ELMD TT NOT LOGGED 5-112" MILLOUT WINDOW (18-24AL2) 8891' - 8895' I FISH-DUAL PEl'REDAT GAUGES (08111/07) ~ I PBTD i 18-24AL2 (LEG #3 TOP OF SAND (05109199) ~-j 9046, 3.38" OD BKR IBP (05/05/99) 9100' 5-1 /2" LNR, 17#, L-80, .0232 bpf, ID = 4.892" i-~ 9485' ~ 3-3/16" LNR 6.2#, L-80, .0076 bpf, ID = 2.786" i I t _ I "~-,_ l_ -, __ l ~ '~-__ ~ ~ ~ ~ ~~ ~ ~ 18-24AL1 (LEG #2) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 18-24A (LEG #1) ~ ~ PERFORATION SUMMARY REF LOG: BHCA ON 04/25/95 ANGLE AT TOP PERF: 76 @ 9350' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2" 4 9350 - 9400 O 05/24/99 2-7/8" SLTD 9513 - 10395 C 05/05/99 2-7/8" SLTD 9518-9932 C 05/05/99 2" 4 9670 - 10225 O 05/24/99 2" 4 10274-10444 O 05/24/99 DATE REV BY COMMENTS DATE REV BY COMMENTS 07/17/89 ORIGINAL COMPLETION 06/15/03 CMO/TLP KB ELEVATION CORRECTION 05/01/95 RIG SIDETRACK (18-24A) 09/13/03 CMO/TLP DATUM MD & PERF ANGLE 05/27/95 CTD-EXTEND WELL-2-7/8"LN 09/22/07 RCT/SV FISH (08/11/07) 10/25/95 CTD (18-24AL1) 04/17/08 KJB/TLH GLV GO (04/08/08) 05/24/99 CTD (18-24AL2) 01/29/02 CH/KAK CORRECTIONS PRUDHOE BAY UNfi WELL: 18-24AL2 PERMfT No: 1990410 API No: 50-029-21952-61 SEC 19, T11 N, R15E, 4293' NSL & 4598' WEL BP Exploration (Alaska) TREE ~ 4-1/16" CIW WELLHEAD = FMC ACTUATOR = BAKER C KB. QED/ = 48.6' BP. ELEV = N/A KOP = 4900' Max Angle = 97 @ 9855' Datum MD = NIA Datum TV D = 8800' SS SAFETY NOTES: MULTILATERAL WELL W/ 3 LEGS # 1 8~ 21SOLATED BY IBP @ 9100' W! Proposed CTD Sidetrack 4 SAND. WELL ANGL.E> 70° @ 9271'. --~ 2207' ~ 4-1/2" CAMCO TRCF-4A-TRSSSV, ID = 3.812" LOCKED OUT(07/29/95) (,AS I IFT MANDRF_LS 10-3/4" CSG, 45.5#, L-80, ID = 9.950" i 3506' Minimum ID = 2.786" @ 8816' 3-1/2" X 3-3116" LNR X-OVER TOP OF TIEBACK SLV, ID = 5.75" 4651' 7-5/8" X 5-1 /2" BKR H PKR ID = 4.813" 465$' 7-5/8" X 5-1/2" SLH-6 HGR ID = 4.875" 4664' 17-518" X 5-1/2" BKR LNR HGRASSY I BTM OF BKR SEAL ASSY, ID = 4.875" I~ 7860' I 7-5/8" CSG, 29.7#, L-80, ID = 6.875" I l ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3020 3019 2 KBMG DRAY BK 0 08/15!95 2 4522 4520 3 KBMG DMY BK 0 04/07/08 4622' 7-5/8" X 4-112" BKR S-3 PKR, ID = 3.875" 4(j45~ 4-1/2" HES X NIP, ID = 3.813" Q,6~' 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" 4658' 4-1/2" WLEG, ID = 3.958" ELMD TT NOT LOGGED 8700' i-i TOL 2-3/8", TOC 3-3/4" BKR DEPLOY Mf3YT' SLV, ID = 3.00" I 3-1/2" X 3-3/16" LNR XO, ID = 2.786" ~-~ 8816' 5-1/2" MILLOUT WINDOW (18-24AL2) 8891' - 8895' 9300' i~ 3-3/16" manobore w hipstock I 5-1/2" LNR 17#, L-80, .0232 bpf, ID = 4.892" I I 9485' I PERFORATION SUMMARY Rf~ LOG: BHCA ON 04/25/95 ANGLEATTOPPEiRF: 76 @ 9350' Note: Refer to Production OB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2" 4 9350 - 9400 O 05/24/99 2" 4 9670 - 10225 O 05/24/99 2" 4 10274 - 10444 O 05/24/99 2-318" L-80 LINER, Cernented & Perforated 11200' PBTD FISH-DUAL PEfREDAT GAUGES (08111/07) 3-3/16" LNR 6.2#, L-80, .0076 bpf, ID = 2.786" 18-24AL2 (LEG #3) DATE REV BY COMMENTS DATE REV BY COMMENTS 07/17/89 ORIGINAL COMPLETION 06/15/03 CMO/TLP KB ELEVATION CORRECTION 05101/95 WG SIDETRACK (18-24A) 09/13/03 CMOITLP DATUM MD & PERF ANGLE 05/27/95 CTD-EXTEND WELL-2-7/8"LN 09/22/07 RCT/SV FISH (08/11!07) 10/25/95 CTD (18-24AL1) 04/17/08 KJB/TLH GLV CJO (04/08/08) 05/24/99 CTD (18-24AL2) 06/25/08 MSE PROPOSID CTD SIDETRACK 01/29/02 CWKAK CORRECTIONS PRUDHOE BAY UNfr WELL: 18-248 PERMfr No: API No: 50-029-21952-02 SEC 19, T11 N, R15E, 4293' NSL & 4598' WEL BP Exploration (Alaska) TI-~. MATERIAL UNDER THIS COVER HAS BEEN MICROFILMED ON OR BEFORE JANUARY 03,2001, M PL A T T H C:LO~ILM.DOC · W E IA L U N D ER IS M ARK ER 95-'~03S BHC/AC/GR _ L' 8200~-947'? B H C/' A,S / S 8 V D 1~:. 8200 ~-. 9h. 7 '? CD/'GR/F INAL .L "8200 -~- q 4 '? ? T ",-/D 9B---03.~} ROF"/NGF: L 8005 .... 9978 MD 95,~03L~ SURVEY R-8000 .... 8438 kl~/D 9q .... O[}S SIIJ;~VEY .......... ~_ R 8000 "' 9 tr 80 ki ~,,1D 95 0:}3 SURVEY -R 8-09~-9978 Mb/D a5--033 ~35B T GR .....MWD SPERRY S F' E R R Y 0 8/' .3 ('!/' 9 $ ..... ,/"3 0// . /0 '//' 9 ~::: 0 ? / . ..... 0 / /0'7 ,"g S 0'i//07//95 , ()//' ?:~ U//9 6 '10*'a. 0'? R COMF'LET.TON DATE D A I L.. Y W E L L C' P S '..R 1";.'; ,.,.U / ? ? /:,,: -'// ? "; /' i/ .f ......A r" e d r' y d 'i ~ ,c h :-:., a m p i e s r' ¢ q u '~ r' e d '~v, e s n'o. A n d r" e c e 'i v e d ©~ ,/e. s c or' ~ ~..~ ' y e s . (]} q ....A n a 'i y s 'i' s ~¢. d e s .r..'; r" '¥ p !; '¥ o n r"e ,::; ~'., :f v -.x.i; d '? C 0 f'4 kl E iq T 'i.i; R e c e ~ v e d "? y e s r', o i'l spenn -sur¥ To: ARCO Alaska Inc. ~d][. . Au , 1995 ittn: Larry Grant, AOGCC '- L~~ II P.O. Box 100360 Anchorage, Alaska 99510-0360 MWD Formation Evaluation Logs - DS 18-24A, AK-MW-50029 The technical data listed below is being submitted herewith. Please address any problems or concerns to the attention of: Jim Galvin, Sperry-Sun Drilling Services, 5631 Silverado Way, #G, Anchorage, AK 99518 DS 18-24A: 2" x 5" MD Gamma Ray Logs' 50-029-21952-01 2" x 5" TVD Gamma Ray Logs: 50-029-21952-01 1 Blueline 1 Folded Sepia 1 Blueline 1 Folded Sepia 5631 Silverado Way, Suite G · Anchorage, AJaska 99518 · (9.07) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company WELL LOG TRANSMITTAL To: State of Alaska July 30, 1996 Alaska Oil and Gas Conservation Comm. Attn.: Howard Okland 3001 Porcupine Dr. Anchorage, Alaska 99501 MWD Formation Evaluation Logs - DS 18-24A, AK-MW-50029 & AK-MW-50042/CTU The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention off Fan Galvin, Sperry-Sun Drilling Services, 5631 Silverado Way, #G, Anchorage, AK 99518 1 LDWG formatted magnetic tape with LIS listing. 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (907) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company July 7, 1995 AOGCC Larry Grant' 3001 Porcupine Dr Anchorage, AK 99501 Re: Survey Data- 18-02A (MWD & ESS), 18-02A ST 0VIWD & ESS) 18-24A (MWD, ESS & CT), 2-08A (MWD), 2-08AST (MWD) Dear Mr. Grant, Enclosed are two hard copies of the above mentioned survey(s). .//[}/3.~ Well 18-24A (ESS) Well 18-24A (CT) Well 18-24A ._ Well 18-02A (ESS) Tie in point 8000', window point 8010', interpolated depth is 8438'. Tied into MWD survey on 18-24A at 9430'. Kick off point is 9465'. ~Tie in point 8000', window point 8010', interpolated depth is 9489' Re-distributing survey, destroy all previously received data. AP1 # and well name was incorrect. , Well 18-02AST (ESS) Re-distributing survey, destroy all previously received data. name was incorrect. API# and well Well 18-02A Re-distributing survey, destroy all previously received data. API# and well name was incorrect. Tie in point was also incorrect, should be 9699'. Well 18-02AST Re-distributing survey, destroy all previously received data. API# and well ' name was incorrect..Tie in point was also incorrect, should be 8900.6'. · ' ' ' ' 1.6' 2-08A T~ed ~nto Schlumberger survey at 9690. Azimuths are ~nterpolated from 970 to 9774.1', interpolated depth is 10985' ~ ~//Ct Well 2-08AST Tied into Schlumberger survey at 9760'. 'Interpolated depth is 9808'. ! / [~~"~lease call me at 563-3256 if you have any questions. R [ C [ IV E D Sincerely, Region Assistant Enclosures. JUL 0 7 199 Alaska 0il & Gas Cons. Commission Anchorage 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (9.07) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMP LETION REPORT LOG 1. Status of Well Classification of Service W~tl OIL [] GAS [] SUSPENDED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number ARCO Alaska, Inc. 95-33 3. Address 8. APl Number P. 0. Box 196612, Anchorage, Alaska 99519-6612 5 o-029-21952-01 4. Location of well at surface 9. Unit or Lease Name ,~1~,t'~ . Prudhoe Bay Unit 4293' NSL, 4598' WEL, SEC. 19, T11N, R15E i ~;0~'.~?i.i~!'r!0~i ~ At Top Producing Interval : !'/-\i~ i 10. Well Number 2336' NSL, 526' WEL, SEC. 24, T11N, R14E i VE~,,iFi,~!~ ~' 18-24A !_L~.~_~_..~] 11. Field and Pool !. ---~ ...... ~; Prudhoe Bay Field/Prudhoe Bay Pool At Total Depth 2143' NSL, 942' WEL, SEC. 24, T11N, R14E 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. KBE = 48.8' ADL 28307 12. Date Spudded4118/95 13' DatoT'D' Reached /~f 14' Date C°mp" Susp' °rAband' 115' Water Depth' if °ffsh°re 116' NO' Of COmpletiOnsO~<'"""/~"/~,./v..,//:,¢' ~ 05/27/95 N/A feet MSL One 17. Total Depth (MD+TVD) 18. Plug Back Deptt~ (MD+TVD) 19. Directional Survey 20. Depth where SSSV set 21. Thickness of Permafrost 9977'MD/8758' TVD 9977'MD/8758' TVD YES [] NO [] 2207' feet MD 1900' (Approx.) 22. Type Electric or Other Logs Run GR/NEU/RES 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP Be'FI-OM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" 91.5# H-40 Surface 114' 30" 2150 # Poleset 10-3/4" 45. 5# L-80 Surface 3507' 13-112" ~ooo sx CS 111/350 sx "G'/230 sx CS II 7'5/8" 29. 7# L-80 Surface 8005' 9-7/8" 200 sx Class "G" 5-1/2" 17# NT-80 4658' 7860' 6-3/4" 325 sx Class "G" 24. Perforations open to Production {MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) Slotted Liner, 9518'-9965' MD / 8698'-9965' TVD 4-1/2", L-80 4658' 4622' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) June 2, 1995 Raw Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF ~NATER-BBL CHOKESIZE IGAS-OIL RATIO TEST PERIOD II~ Flow Tubing Casing 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 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE /9. 30. GEOLOGIC MARKERS FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Put River 8354' 8000' Sag River 8510' 8138' Shublik 8560' 8182' Top Sadlerochit 8638' 8249' Zone 3 8778' 8369' Zone 2 8843' 8422' GOC 9066' 8570' Low Gas 9214' 8642' Zone lB 9240' 8650' Base Sadlerochit NP 31. LIST OF A'I-rACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed '~:~/-/'~/'~f Title Senior Drilling Enaineer Date / ' _ INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and Icg on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). · Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Form 10-407 BP/AAI SHARED SERVICE DAILY OPERATIONS PAGE: 1 WELL: DS 18-24A BOROUGH: NORTH SLOPE UNIT: PRUDHOE BAY FIELD: PRUDHOE BAY LEASE: API: 50- PERMIT: APPROVAL: ACCEPT: 04/09/95 11:00 SPUD: RELEASE: 05/01/95 12:00 OPERATION: DRLG RIG: NABORS 2ES WO/C RIG: NABORS 2ES 04/10/95 ( 1) TD: 9279 PB: 9232 04/11/95 ( 2) TD: 9279 PB: 9232 04/12/95 ( 3) TD: 9279 PB: 9232 CIRC 8.8 BRINE AROUND WELL MW: 0.0 PJSM. MOVE RIG FROM 18-2 TO 18-24A. HOOK UP PITS, GO THROUG PRE APPROVAL CHECK LIST. ACCEPT RIG @ 2300 HRS ON 04/09/95. TAKE ON SEAWATER, R/U TO CHECK WELL PRESSURES AND BEGIN NIPPLU UP PROCESS. R/U LUBRICATOR AND PULL BPV, R/D LUBRICATOR. DISPLACE DIESEL CAP OUT OF TBG, BOTH ANNULUS AND TBG PRESS READING 100 PSI AFTER DISPLACEMENT. DISPLACED DIESEL CAP FROM ANNULUS AND MONITORED WELL, SLIGHT FLOW FROM TBG. CBU FROM TBG W/ 5 BPM AND 800 PSI. MONITORED WELL. RAISED FLUID WEIGHT OF SEAWATER IN PITS TO 8.8 W/ SALT AND BEGIN CIRC AROUND THE LONG WAY. DIRTY FLUID RETURNS, NO DIESEL OR GAS, ETC SEEN IN RETURNS. POH L/D TUBING MW: 0.0 DISPLACED WELL TO 10.2 MUD FROM 8.8 BRINE. SHUT DOWN, NO FLOW-WELL STABLE. TESTED 7 5/8" PACKOFF; WOULD TEST WELL, BUT BLED DOWN FROM 3000 PSI, FAILED TEST. SET BPV. PJSM; N/D TREE & N/U BOP'S. CHECK FIT OF R & R TOOL WHILE TREE WAS OFF; VERY TIGHT FIT. TEST BOP'S, ANNULAR. CHECKED AND CALIBRATED H2S SENSORS. R/U DSM AND PULL BPV. R/D LUBRICATOR. PJSM. INSTALL LANDING JOINT TESTED LPR'S. PULLED TBG HGR TO FLOOR. PULLED FREE. R/D HANGER, R/U CAMCO SPOOLER FOR 3/8" CIM LINE, FILL HOLE. CONTINUE TO PULL 3 1/2" TBG. CUTTING WINDOW IN 7 5/8" CSG MW: 0.0 POH W/ 3 1/2" TUBING. RECOVERED 255 JTS + 1 CUT OFF JT. ALSO RECOVERED 260 CLAMP, 14 BANDS, CIM AND CONTROL LINE, 2 GLM'S, 1 CIM, 1 SSSV. 8 RD TUBING COATED WITH HEAVY OIL/PARAFFIN; LOOKED TO BE IN GOOD SHAPE. CLEAR RIG FLOOR AND CLEAN UP TAR. BREAK PUP FROM L/J AND INSTALL WEAR RING. R/U TO P/U 3 1/2" P/U WINDOW ASSY AND RIH PICKING UP 3 1/2" DRILLPIPE. TAGGED FISH @ 8199'. SPOT 18 PPG PILL. STAND BACK 2 STDS DP. P/U KELLY AND BEGAN CUTTING WINDOW. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 2 04/13/95 ( 4) TD: 9279 PB: 7805 04/14/95 ( 5) TD: 9279 PB: 9232 POH MW: 0.0 CUT WINDOW IN 7 5/8" CASING F/ 8005 - 8055', OBTAIN CUT OUT IN 45 MINUTES, GOOD METAL RECOVERY APPROX 85% - 15% KNIFE WEAR. PUMP LOW VIS SWEEP AROUND, MONITOR WELL, PUMP SLUG. POH, NO PROBLEMS. HOLE FILL NORMAL. LAY DOWN BHA, PULL WEAR BUSHING. DOPE AND RE-INSTALL. MAKE UP 3 1/2" DRILL PIPE MULE SHOE. RIH TO 8005', BREAK CIRCULATTION 20 STANDS. WASH FROM TOP OF WINDOW @ 8005 - 8154' 99' BELOW WINDOW. CIRCUALTE BOTTOMS UP. SPOT 105 SX GLASS 'G' BALANCE CEMENT PLUG, 18.5 BBL CEMENT SLURRY. BATCHED MIXED @ 17.0 PPG. PLUG FROM 8154 - 7804' - 350' OF PLUG CEMENT IN PLACE. POH 10 STANDS SLOW TO 7224' CIRCULATE DP VOLUME. ATTEMPT TO SQUEEZE INTO WINDOW. CIRCULATE BOTTOMS UP TO PROVIDE CLEAN HOLE FOR ATLAS VERTI-LOG. POH. WILL TEST BOP AND VERTI-LOG 7 5/8" CSG WHEN OUT OF HOLE. TOP OF CEMENT @ 7800'. RIH W/ 7 5/8" CSG SCRAPER MW: 0.0 POH 66 STDS 3 1/2" 'G' DP. SLIP 40' AND CUT 80' DRILLING LINE. LD 57 JTS S-135 3 1/2" DP. PULL WEAR RING AND FLUSH STACK OF METAL. TEST BOPS, ANNULAR. GOOD TEST. ATTEMPTED TO PULL 7 5/8" PACKOFF, COULD NOT STING INTO PACKOFF W/ RUNNING TOOL. R/U WESTERN ATLAS FOR VERTILOG. RIH W/ TOOL, HAD TO WORK IT DOWN. TOOL FAILED @ 6000', BEGAN POH FOR INSPECTION. PULLING TIGHT, STUCK @ 2500' CAME FREE W/ 6000 LB PULL. POH, TOOL STUCK AGAIN @ 15~' COULD NOT PULL LOOSE W/ 6500 LB PULL. P/U MULESHOE AND 3 1/2" DP, RIH GENTLY AND WASH DOWN LAST 20' TAGGED TOF @ 157' FISH MOVED DOWNHOLE 10' AND WASHED AND WORKED W/ DP WHILE MOVING TOOL UP AND DOWN WHILE HOLDING CONSTANT TENSION ON WIRELINE. FINALLY GOT IT PAST STUCK POINT, HAD TO WASH IT OOH. CAUGHT WEAR RING ON WAY OUT, LOTS OF METAL AND BARITE, LONG SLIVERS OF METAL. R/D WESTERN ATLAD AND RE-RUN WEAR RING. P/U MULESHOE, CASING SCRAPER AND 2 JUNK BASKETS AND BEGIN RIH. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 3 04/15/95 ( 6) TD: 9279 PB: 9232 04/16/95 ( 7) TD: 9279 PB: 9232 CHANGING OUT 7 5/8" PACKOFF MW: 0.0 RIH W/ CASING SCRAPER. CIRC @ 4500', CONTINUE TO 7268' WORK CASING SCRAPER AND JUNK BASKETS @ 2250 PSI. GOT BACK LOTS OF POLYMER AND PARAFFIN, NOT MUCH METAL OBSERVED. ATTEMPT TO POH, EXPERIENCED 20K DRAG OVER NORMAL. WENT BACK TO 7300' CHANGE OUT LEAKING SWIVEL PACKING. ROTATE CASING SCRAPER WHILE CIRC. WORKED JUNK FREE. POH. RECOVERED FINE CSG CUTTINGS + NUMEROUS 6-8" SLIVERS OF CASING. R/U WESTER ATLAS FOR VERTILOG. RUN #1 6.5" GAUGE RING AND JUNK BASKET RUN WENT TO 3500'_ RECOVERED LOTS OF PARAFFIN AND SMALL METAL PIECES. RUN #2 6.5" GAUGE RIN/JUNK BASKET RUN TO 7300, RECOVERED PARAFFIN AND SMALL AMOUNTS METAL. RUN #3 6.7 GAUGE RING/JUNK BASKET RUN TO 7300' GOT SMALL AMOUNTS PARAFFIN AND METAL. RUN #4 RAN VERTILOG 7100 - 4000', NO REAL HOLES IDENTIFIED. HAVE NOT SEEN FULLY PROCESSED LOGS YET, ALTHOUGH WESTERN ATLAS INDICATES EXTENSIVE PITTING AND CORROSION THROUGH INTERVAL. R/D. CLOSE BLIND RAMS AND TEST 7 5/8", ONLY ABLE TO GET 200 PSI TST. P/U BHA FOR CLEANOUT RUN AND RIH. P/U HALLIBURTON STORM PACKER AND SET @ 34' PULL WEAR RING, N/D BOPS AND TUBING HEAD FOR 7 5/8 " PACKOFF REPLACEMENT. POH W/ CLEANOUT ASSY MW: 0.0 N/D BOPS AND CHANGE OUT 7 5/8" PACKOFF. COULD NOT GET TEST ON NEW PACKOFF. CALLED OUT FMC JIT HAND WHO BROUGHT OUT REBUILT PACKOFF, DETERMINED THAT PACKOFFS WERE ALL 3 SITTING TOO LOW IN SPOOL AND SEAL BORES AND SEALS WERE MIS-MATCHED. REBUILD PACKOFF BY ADDING EXTRA JUNK RING TO BOTTOM SO THAT SEALS AREAS AND LDS WERE BEING PROPERLY ENERGIZED. TESTED. NU AND TEST BOPS. INSTALL WEAR RING. CATCH AND RETRIEVE STORM PACKER. METAL IN RETRIEVAL STINGER AREA SORT OF JAMMED IT UP. RIH W/ CLEANOUT ASSEMBLY. TAGGED SQUISHY CMT @ 7846'. CLEANED OUT CMT STRINGERS FROM 7846 - 7895'. DRILL OUT HARD CEMENT TO 8000' WORK JUNK BASKETS PERIODICALLY, BUT NO INDICATIONS OF EXCESS METAL OR JUNK DURING INTIAL TAGGING, CLEANOUT OR DRILLING. CBU AND CLEAN SCREENS WELL WHILE CONDITIONING MUD. TESTED CASING. POH W/ CLEANOUT ASSEMBLY TO PICK UP KICKOFF ASSEMBLY. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 4 04/17/95 ( 8) TD: 9279 PB: 9232 04/18/95 ( 9) TD: 9279 PB: 9232 04/19/95 (10) TD: 8204' (8204) 04/20/95 (11) TD: 8523' ( 319) POH W/ CLEANOUT ASSY MW: 0.0 LD BHA ~3. RECOVERED 10 LBS METAL CHIPS. CLENA FLOOR, SERVICE WEAR RING. PU BHA. RIH W/ BHA #4. TEST MWD AND CALIBRATE DW ENCODER. RIH TO 7940'. WASH 7940 - 8000'. DRLG CMT TO 8012' AND BEGIN SIDETRACK. SLIDE TO 8058' AND MOTOR STALLING, ROP 0. UNSURE IF STUMP OR JUNK IN HOLE IN CASING CAVITY. WORK TO DETERMIE CAUSE OF PROBLEM, WELL ACTING AS IF WE WERE DEALING W/ JUNK IN CAVITY. COULD NOT GET PAST AREA AFTER REPEATED ATTEMPTS. CBU. PUMP PILL AND MONITOR WELL. POH, L/D BHA AND P/U CLEANOUT BHA W/ MILL AND JUNK BASKETS. BIT HAS BOTTOM DAMAGE. SLIP 40' DRILLING LINE. RIH W/ BHA #5. TAGGED UP @ 8053' AND WORKED TO 8058' CIRC. DETERMINED AFTER WORKING THROUGH AREA THAT MILL WAS FALLING OFF STUMP @ 8055' CONSISTENTLY, NO JUNK IN HOLE. PUMP PILL AND MONITOR WELL. POH FILL NORMAL AND NO DRAG. STANDING HWDP. DRILLING FIRM CEMENT MW: 0.0 POH W/ BHA #5, SMALL PIECES OF METAL + SHALE AND CMT IN JUNK BASKETS. SERVICE WEAR RING, P/U MULESHOE AND RIH W/ 3 .1/2" DP. P/U 27 EXTRA JTS. RIH TO 8056'. CURC AND RECIPROCATE THROUGH WINDOW WHILE R/U BJ AND BATCH MIXING CMT. PUMP 25 BBLS WATER, 13 BBLS SLURRY AND 5 BBLS WATER, THEN SWITCHED TO RIG PUMPS AND DISPLACED CEMENT TO WINDOW. POH SLOWLY TO 7579' AND SLOWLY REVERSED OUT WATER TO MIMIMIZE MUD DAMAGE. RECOVERED 1 BBL CEMENT AND +/- 25 BBLS WATER. PRESS WHILE REVERSING WAS 600 PSI, EXPERIENCED NO LOSS OF VOLUME WHILE REVERSING. CIRC LONG WAY FOR ONE SYSTEM VOLUME. MONITOR WELL, POH. L/D EXTRA DRILLPIPE AND PULL WEAR RING. INSERT TEST PLUG. TEST BOPS. M/U CLEANOUT BHA AND RIH. P/U KELLY AND WASH FROM 7744 - 7909' TAGGED FIRM CEMENT @ 7909' AND BEGAN DRILLING CMT. POOH F/BHA CHANGE MW: 0.0 VIS: 0 DRILL CMT T/8000. CBU. POOH & LD & CLEANOUT THE BHA. PU NEW BHA & CHECK MWD & MOTOR. CIRC PRESS IS TOO HIGH. CHANGE OUT 1-1/2 DEGREE MOTOR T/1-3/4 DEGREE MOTOR. RIH T/TOC. DRILL CMT T/8008. ORIENT & BEGIN ST. 80% FORMATION RETURNS BACK. 5 HRS ADT. DRILL T/8204. POOH F/BHA CHANGE BEFORE ENTERING THE PUT RIVER. CIRC AROUND LO VIS SWEEP. MONITOR THE WELL & BEGING T/POOH. POH MW: 0.0 VIS: 0 FINISH POH. LD MWD AND 1.75 MOTOR. PU MWD 1.25 MOTOR. BIT #4 AND BHA #8. CUT DRILLING LINE. CHANGE RHEOSTAT ON MUD PUMP #2. CONTINUE RIH. TAG BOTTOM NO FILL @ 8204' ROTATE AND SLIDE F/ 8204 - 8523'. CONTINUE RIGHT HAND TURN. SUSPECT MWD INTERNAL TOOL ALIGNMENT FAILURE. PUMP SWEEP CIRC BOTTOMS UP AND DROP SPERRY ESS MULTI-SHOT TOOL. POH. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 5 04/21/95 (12) TD: 8766'( 243) 04/22/95 (13) TD: 8965' ( 199) 04/23/95 (14) TD: 9300' ( 335) 04/24/95 (15) TD: 9489' ( 189) 04/25/95 (16) TD: 9489' ( 0) RUN IN HOLE MW: 0.0 VIS: 0 FINISH POOH. VERIFY ORIENTATION. INSPECT MWD. OK. LD 1.25 MOTOR. PU 1.75 MOTOR & BIT #5. RIH T/8523. HOLE IN GOOD CONDITION -- NO FILL. SLIDE & ROTATE F/8523 T/8766. PUMP SWEEP. CBU. POOH. LD NM STAB 1.75 MOTOR. PU FOOTBALL STAB & BIT #6. SERVICE THE WEAR RING. RIH W/ROTARY ASSY T/DRIL ZONE #3. SLIDING MW: 0.0 VIS: 0 FINISH RIH TO 8766'_ NO FILL. HOLE IN GOOD CONDITION. ROTARTY DRILL FROM 8766 - 8912'. PUMP SWEEP. CIRC BOTTOMS UP. POH. PU BHA. SERVICE WEAR RING. RIH TO 8873'. TIGHT SPOT @8873' WASH F/ 8861 - 8912'. SLIDE FROM 8912 - 8965'. DRILLING MW: 0.0 VIS: 0 ROTATE AND SLIDE DRILL TO 9252' STOPPED SLIDING, STACKING OUT. PUMP LOW VIS SWEEP. CIRCULATE BOTTOMS UP. POH. SERVICE WEAR RING. PU BIT. RIH TO 9078' WORK THRU TIGHT SPOT @ 9078'. FINISH IN HOLE TO 9252'. NO FILL. SLIDING. RIH TO LOG MW: 0.0 VIS: 0 DRILL. SLIDE AND ROTATE F/ 9300 - 9489' PUMP LOW VIS SWEEP. CIRC BOTTOMS UP. POH INTO WINDOW. TIGH HOLE 9078' CUT DRILLING LINE. RIH. WORK TIGHT HOLE F/ 9078 - 9098' FINISH RIH TO BOTTOM, NO FILL. PUMP LOW VIS SWEEP. CIRC BOTTOMS UP. POH 8 STANDS. RIH TO BOTTOM, NO FILL. CIRC BOTTOMS UP. POH TO LOG. LD BHA. PU AND RU DRESSAR ATLAS. PU 26 JTS DP. RIH TO RUN DP CONVEYED LOGS. RIH MW: 0.0 VIS: 0 RIH TO 7984'. P/U SIDEDOOR ENTRY SUB. RIH WITH WET CONN LATCH. LOG FROM 8179 - 9479'. RUN GAMMA RAY, COMPENSATED NEUTRON, ACOUSTALOG. LOG OUT 9179 - 8179' SHEAR OUT WET CONN. POH WITH WIRELINE, L/D SIDEDOOR ENTRY SUB. PUMP PILL. POH. L/D LOGGING TOOLS. P/U 6.75 BULL NOSE HOLE OPENER AND BHA. RIH. HIT TIGHT SPOT @ 8950'. WORK TIGHT SPOT 8950 TO 9020' WOULD NOT CLEAN UP. WASH AND REAM 8950 - 9037' FINISH IN HOLE TO BOTTOM. NO FILL. PUMP 30 BBL HIGH VIS, 30 BBLS LOW VIS SWEEP. CIRC BOTTOMS UP. POH TO WINDOW. WASH AND REAM TIGHT HOLE 8734 - 8770' PULL BACK INTO WINDOW. RIH TO BOTTOM, NO FILL. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 6 04/26/95 (17) TD: 9489' ( 0) 04/27/95 (18) TD: 9489' ( 0) 04/28/95 (19) TD: 9489' ( 0) 04/29/95 (20) TD: 9489' ( 0) CIRC MW: 0.0 VIS: 0 CIRCULATE AND CONDITION HOLE @ 9489' SPOT 40 BBL HIGH VIS ON BOTTOM. POH TO WINDOW @ 7990'. NO EXCESS DRAG. PUMP PILL AND DROP 2' RABBIT. FINISH POH. LD BHA. R/U TO RUN LINER. P/U 39 JTS 5.5" 17# NSCC CASING AND BAKER LINER HANGER ASSEMBLY 1632'_ RIH WITH LINER TO 7950'. CIRCULATE DP AND LINER DISPLACEMENT. CONTINUE RIH TO 8913' TIGHT HOLE. WORK DOWN TO 8970'. P/U KELLY, WASH F/ 89~0 - 9008'_ FINISH IN HOLE TO 9489'_ CIRCUALTE HOLE CLEAN. PUMP 5 BBLS PREFLUSH. TEST LINES. PUMP 15 BBLS KCL PREFLUSH AND 30 BBLS 10.5 SPACER. PUMP 43.4 BBLS CEMENT. DROP DART, PUMP 35 BBLS WATER 52 BBLS MUD. BUMPED PLUG. SET HANGER. PRESS UP 4200 SET PACKER 4200#. TEST PACKER. LINER SET @ 9485'. COULD NOT CIRCULATE ON BOTTOM. PACKING OFF. ATTEMPT TO REVERSE OUT. STARTED TO CIRCUALTE LOST RETURNS. CIRCULATE LONG WAY. RECOVERED FLUSH, SPACER AND 5 BBLS CEMENT. RIH W/ SEALS AND TEST PKR MW: 0.0 VIS: 0 DISPLACED WELL TO 8.6 SEA WATER. AFTER 356 BBL PUMPED, WELL FLOWING. DISPLACED W/ 10.1 MUD, HOLDING 200 PSI BACK PRESS ON CHOKE. POH. L/D BAKER LINER RUNNING TOOL. TESTED BOPE. M/U LINER TOP POLISH MILL. RIH. CUT AND SLIPPED DRLG LINE. RIH TO 7849'SPM. P/U KELLY AND POLISHED LINER PBR 7856 - 7863' CBU. RETURNS CLEAN. POH. L/D POLISH MILL. M/U BHA #15. RIH TO TEST LINER, LINER TOP AND 7.625" @ 4700' MD. CUT & SLIP DRLG LINE MW: 0.0 VIS: 0 FINISHED TESTING LINER, LINER TOP. GOOD TEST. POH L/D 91 JTS 3.5" DRILL PIPE. SET TEST PKR @ 4670'. TESTED 7 5/8" 4670-SURFACE. GOOD. POH RABBITING PIPE. L/D TEST PACKER. R/U AND RAN 81 JTS 5.5" 17# TBG BTC LINER. RIH W. LINER ON 3.5" DRILL PIPE. USED "WET SUB" TO PREVENT OVERFLOW FROM DP. STUNG INTO LINER EXTENSION. TESTED AND P/U. PUMPED 15 BBL H20, 65 BBL CMT, 5 BBL H2, DISPLACED W/ MUD. DART LATCHED AND PLUG BUMPED. STUNG INTO LINER TOP. SET PKR, HGR. NO INDICATION ON EITHER. RELEASED SETTING TOOL. BECAUSE NO OBSERVED SETTING INDICATION, CIRC CMT OUT ON ANN. RECOVERED WATER SPACERS AND 10 BBL CMT. POH. LD BAKER RUNNING TOOL. CUT AND SLIP[ED DRILL LINE. DRILLING MW: 0.0 VIS: 0 CUT AND SLIPPED DRLG LINE. M/U 7 5/8" SCRAPER. RIH TO 4630'. NO EVIDENCE OF CEMENT. CBU. DID NOT SEE ANY CEMENT. POH. L/D SCRAPER. SERVICED WEAR RING AND FLUSHED STACK. CHNAGED TOP RAMS TO 2 7/8" TESTED SAME. P/U BHA #16. RIH. REPAIRED BROKEN CHAIN ON PIPE SKATE. CONTINUE RIH. P/U BHA #16 AND 3 1/2" DP. TAGGED CMT @ 7700' DRLD CMT 7700 - LC @ 7780'. WELL : DS 18-24 OPERATION: RIG : NABORS 2ES PAGE: 7 04/30/95 (21) TD: 9489' ( 0) 05/01/95 (22) TD: 9489' ( 0) 05/02/95 (23) TD: 9489' ( 0) POH L/D DP MW: 0.0 VIS: 0 DRILLED L/C @ 7780', CMT, FC @ 7820' RIH CHANSING JUNK. TAGGED CMT @ 9238'. DRILLED CMT STRINGERS 9238 - 9394', HARD CMT 9394 - 9404' DRILLED LC @ 9404', CMT TO 9441' TESTED LINER. DRILLED FC @ 9441', CMT TO 9475'. CIRC HI-VIS SWEEP AROUND. REVERSED CLEAN. TESTED LINER LAP. GOOD TEST. POH L/D DP. CIRC INHIBITED SEAH20 MW: 0.0 VIS: 0 FINISHED POH L/D DP. PREP TO RUN TUBING. M/U AND RAN COMPLETION. SPACED OUT, LANDED TBG IN SBR, TESTED CONTROL LINE IN HGR. SET PLUG, N/D BOP, N/U TREE ADPT. FLNG. ATTEMPTED TO TEST TREE FLANGE. LDS LEAKING. CHANGED PACKING. LUBRICATED BPV. CIRC INHIBITED SEAWATER. RELEASE RIG MW: 0.0 VIS: 0 FINISHED REVERSE CIRC 193 BBL OF INHIBITED SEA WATER. DROPPED 2 1/4" BALL. PRESS TBG 4KPSI TO SET PKR PINNED. BLED TBG TO 2KPSI, PRESSURE ANNULUS. BLED DOWN BOTH, CHECKED SURFACE EQUIPMENT. REPEATED, W/ SAME RESULTS. ISOLATED TBG FROM MANIFOLD. PUMPED ON TBG. HAD COMMUNICATION TO ANNULUS. PRESSURE UP BOTH SIDES. PKR SET./ FREEZE PROTECT W/ 83 BBL DIESEL. SET BPV. RELEASE RIG.@ 1200 HRS ON 05/01/95. SIGNATURE: (drilling superintendent) DATE: 18-24A DESCRIPTION OF WORK COMPLETED COILED TUBING HORIZONTAL SIDETRACK EXTENSION DRILLING 5/17/95: MIRU CTU. MU & RIH w/drilling BHA. 5/18/95: Tagged up on cement at 9475' MD. POOH w/BHA. MU & RIH w/drilling BHA & drilled cement & 3.75" horizontal extension wellbore to 9609' MD. Swept hole clean w/20 bbls Gelled Diesel. 5/19/95: Continued drilling underbalanced to 9712' MD, w/well flowing to separator. Pumped Gelled Diesel sweep & POOH w/BHA. MU & RIH w/drilling BHA. Drilled to 9955' MD. Circulated Gelled Diesel sweep & POOH w/BHA. 5/20/95: MU & RIH w/drilling BHA. Drilled/reamed horizontal hole to 9977' MD w/periodic Gelled Diesel sweeps. Stuck pipe, worked free, & chased sweep uphole. Bridged off & stuck pipe in casing at 9405' MD. Brought on AL, circulated Crude, and pulled free. 5/21/95: POOH w/BHA. MU & RIH w/drilling BHA. Backreamed hole from 9450' to 8900' MD while circulating Gelled Diesel sweep. POOH & stuck pipe at 8450' MD. Brought on AL & worked pipe, but could not establish circulation around BHA due to bridge at 8440' MD. Disconnected from BHA & pumped FIo Pro into openhole. SD pump & worked pipe; no movement. Brought on pump, but could not establish circulation. 5/22/95: RIH w/chemical cutter & cut the 2" CT at 8415' MD. POOH w/cutter, then PU & POOH w/CT fish. Swapped CT reels & MU fishing BHA. RIH w/BHA & washed biozan sweep down from 8300' to 8436' MD. 5/23/95: POOH w/BHA. MU & RIH w/fishing BHA. Sat down on top of fish at 8434' MD. POOH to change BHA. MU & RIH w/fishing BHA. Washed down over fish, then jarred & pulled free. Attempted to relatch fish. POOH w/BHA; no recovery. MU & RIH w/fishing BHA. Latched fish at 8433' MD & jarred on fish. Washed over fish & resumed jarring; no movement. Released overshot & POOH w/BHA. 5/24/95: MU & RIH w/cut lip washpipe. Could not work pipe over fish. POOH w/washpipe. RIH w/nozzle to TOF & pumped hi-vis biozan pill. Circulated & fish fell downhole. Washed down to 8470' MD w/no tag & circulated BU. RIH pumping sweeps w/short trips down to fish at 9343' MD. POOH w/nozzle, then MU & RIH w/fishing BHA. 5/25/95: Attempted to latch fish. POOH without fish. MU & RIH w/fishing BHA. Latched top of fish & POOH w/coil & disconnect fish. MU & RIH w/fishing BHA while circulating biozan sweep to TOF. Circulated BU & attempted to latch fish at 9492' MD. POOH w/BHA; no fish. MU & RIH w/fishing BHA. Tagged TOF & chased fish to bottom at 9937' MD. 5/26/95: Latched & POOH w/motor & bit fish. MU & RIH w/3-1/2" x 2-7/8" slotted liner assembly to land & set liner from 9457' to 9965' MD. Displaced hole w/2% KCI Water, then pumped 15 bbls Lithium Hypochlorite. Released from liner. POOH w/CT. RIH w/nozzle to 9300 ' MD, then POOH displacing the hole w/Crude & Diesel to surface. 5/27/95: Rigged down CTU & moved off location. Placed the well on production w/initial tested rates showing 800 - 1000 BOPD, 1000 - 2400 MscfD, and 0 - 15 BWPD, w/no lift gas. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/9 DATE OF SURVEY: 042395 MWD SURVEY JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC FT. TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 8000 7729.00 7680.35 23 28 8010 7738.17 7689.52 23 30 8162 7877.14 7828.49 24 23 8322 8021.44 7972.79 27 0 8354 8049.91 8001.26 27 23 S 21.80 W .00 1297.20S 174.10W S 22.53 W 2.93 1300.89S 175.60W S 32.60 W 2.75 1355.37S 204.15W S 47.20 W 4.27 1407.95S 248.66W S 53.80 W 9.51 1417.24S 259.93W 470.62 472.94 513.36 568.86 581.98 8386 8078.33 8029.68 27 23 8418 8106.76 8058.11 27 12 8449 8134.25 8085.60 27 53 8481 8162.39 8113.74 28 53 8515 8191.92 8143.27 30 30 8547 8219.58 8170.93 30 0 8579 8247.45 8198.80 28 53 8610 8274.69 8226.04 28 12 8642 8302.78 8254.13 29 6 8674 8330.41 8281.76 31 23 S 60.40 W 9.49 1425.22S 272.28W S 65.80 W 7.76 1431.86S 285.35W S 68.70 W 4.88 1437.40S 298.57W S 70.70 W 4.31 1442.67S 312.84W S 68.50 W 5.69 1448.55S 328.62W S 61.20 W 11.59 1455.38S 343.20W S 54.10 W 11.43 1463.77S 356.47W S 47.40 W 10.57 1473.13S 367.94W S 39.90 W 11.58 1484.22S 378.50W S 38.20 W 7.67 1496.74S 388.64W 595.85 610.11 624.25 639.36 656.07 671.83 686.70 700.02 712.87 725.64 8707 8358.51 8309.86 31 53 8738 8384.82 8336.17 31 53 8770 8411.87 8363.22 32 42 8801 8437.67 8389.02 34 35 8833 8463.64 8414.99 36 54 S 37.30 W 2.08 1510.43S 399.24W S 37.40 W .16 1523.45S 409.18W S 38.50 W 3.10 1536.93S 419.70W S 37.60 W 6.34 1550.46S 430.28W S 37.50 W 7.19 1565.28S 441.67W 739.13 751.83 765.19 778.62 793.14 8865 8488.82 8440.17 39 17 8897 8513.18 8464.53 41 30 8921 8530.69 8482.04 44 47 8953 8552.43 8503.78 49 35 8984 8571.73 8523.08 53 24 S 35.20 W 8.71 S 33.70 W 7.52 S 34.40 W 13.89 S 39.00 W 18.33 S 40.00 W 12.52 1581.19S 453.37W 808.21 1598.29S 465.09W 823.58 1611.88S 474.28W 835.68 1630.67S 488.33W 853.71 1649.39S 503.76W 873.07 9016 8590.49 8541.84 54 47 9048 8608.41 8559.76 57 5 9080 8625.39 8576.74 58 47 9112 8641.65 8593.00 60 5 9144 8657.24 8608.59 61 35 S 41.50 W 5.79 S 42.90 W 8.05 S 43.80 W 5.82 S 44.20 W 4.20 S 45.10 W 5.29 1669.02S 520.68W 894.09 1688.65S 538.49W 915.97 1708.37S 557.11W 938.66 1728.19S 576.25W 961.88 1748.07S 595.89W 985.60 9176 8672.19 8623.54 62 42 9208 8686.61 8637.96 63 42 9239 8699.69 8651.04 66 24 9271 8711.89 8663.24 68 48 9302 8722.29 8673.64 72 0 S 44.40 W 3.94 S 44.40 W 3.13 S 47.50 W 12.57 S 49.90 W 10.21 S 52.70 W 13.38 1768.17S 615.81W 1009.64 1788.57S 635.79W 1033.82 1808.10S 656.00W 1058.00 1827.62S 678.22W 1084.15 1845.87S 701.01W 1110.56 Date SPERRY-SUN DRILLING SERVICES ANCHOP~AGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 MWD SURVEY JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 9334 8731.43 8682.78 74 48 S 53.70 W 9.25 9366 8738.79 8690.14 78 35 S 55.40 W 12.95 9398 8743.99 8695.34 82 41 S 57.80 W 14.80 9430 8746.94 8698.29 86 41 S 59.00 W 13.05 9489 8750.34 8701.69 86 41 S 59.00 W .00 1864.24S 1882.29S 1899.67S 1916.36S 1946.69S 725.57W 1138.71 750.93W 1167.57 777.29W 1197.24 804.42W 1227.51 854.91W 1283.66 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 2126.14 FEET AT SOUTH 23 DEG. 42 MIN. WEST AT MD = 9489 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 256.57 DEG. TIE IN POINT 8000' WINDOW POINT 8010' INTERPOLATED DEPTH 9489' SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/18-24A 5oo2921952o1 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGU~ COORDINATES MD-TVI) VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 8OOO 9000 9489 7729.00 7680.35 8581.27 8532.62 8750.34 8701.69 1297.20 S 174.10 W 271.00 1659.22 S 512.02 W 418.73 147.73 1946.69 S 854.91 W 738.66 319.93 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TV/D DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE VERTICAL CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 8021 7748.65 7700.00 1305.09 S 177.39 W 272.78 8130 7848.65 7800.00 1344.42 S 197.44 W 282.10 8240 7948.65 7900.00 1382.07 S 223.88 W 292.21 1.78 9.32 10.10 8352 8048.65 8000.00 1416.79 S 259.46 W 303.94 8465 8148.65 8100.00 1440.13 S 305.77 W 316.69 8580' 8248.65 8200.00 1464.17 S 357.00 W 331.72 8695 8348.65 8300.00 1505.58 S 395.53 W 346.75 8814 8448.65 8400.00 1556.55 S 434.96 W 365.75 11.73 12.75 15.03 15.03 18.99 8947 8548.65 8500.00 1627.35 S 485.77 W 398.70 9126 8648.65 8600.00 1737.02 S 584.91 W 477.56 9459 8748.65 8700.00 1931.61 S 829.80 W 711.01 9480 8749.82 8701.17 1942.07 S 847.21 W 730.18 32.95 78.86 233.45 19.17 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS FT. SPm~RY-SUN DRILLING SERVICES ARCO ALASKA INC PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/9 ANCHORAGE ALASKA ~ ~ f.~ DATE OF SURVEY: ~0~2195' .~ MWD SURVEY '~ JOB NUMBER: AK-MW-50042 ~ '~ KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS COURSE DLS TOTAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 9430 8746.94 8698.29 9465 8747.67 8699.02 9485 8747.01 8698.36 9524 8746.11 8697.46 9571 8747.30 8698.65 86 41 S 59.00 W .00 1916.36S 804.42W 1538.94 90 54 S 59.00 W 12.00 1934.38S 834.41W 1573.73 92 54 S 65.00 W 31.61 1943.76S 852.05W 1593.68 89 44 S 66.35 W 8.81 1959.82S 887.57W 1632.67 87 21 S 64.95 W 5.87 1979.19S 930.37W 1679.64 9606 8748.77 8700.12 9627 8749.56 8700.91 9653 8750.82 8702.17 9679 8752.48 8703.83 9690 8753.23 8704.58 87 50 S 64.60 W 1.70 1994.09S 962.01W 1714.61 87 48 S 64.07 W 2.53 2003.18S 980.92W 1735.60 86 39 S 60.38 W 14.84 2015.28S 1003.89W 1761.53 86 2 S 61.08 W 3.59 2027.96S 1026.53W 1787.40 86 7 S 60.20 W 8.02 2033.34S 1036.09W 1798.35 9731 8755.58 8706.93 9747 8756.14 8707.49 9764 8756.38 8707.73 9781 8756.44 8707.79 9814 8756.28 8707.63 87 16 S 59.50 W 3.28 2053.90S 1071.48W 1839.11 88 44 S 61.36 W 14.77 2061.79S 1085.39W 1855.05 89 37 S 62.05 W 6.62 2069.85S 1100.36W 1872.02 90 0 S 62.49 W 3.38 2077.76S 1115.40W 1889.00 90 31 S 66.18 W 11.30 2092.05S 1145.14W 1921.99 9844 8756.17 8707.52 9898 8756.79 8708.14 9938 8757.59 8708.94 9964 8758.02 8709.37 9978 8758.21 8709.56 89 54 S 67.06 W 3.59 2103.95S 1172.68W 1951.97 88 46 S 67.94 W 2.67 2124.61S 1222.56W 2005.91 88 56 S 72.51 W 11.43 2138.14S 1260.18W 2045.73 89 12 S 72.33 W 1.23 2146.13S 1285.38W 2071.95 89 11 S 72.30 W .21 2150.24S 1298.30W 2085.39 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 2511.80 FEET AT SOUTH 31 DEG. 7 MIN. WEST AT MD = 9978 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 245.00 DEG. SPm~RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 ARCO ALASKA INC PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 052195 JOB NUMBER: AK-MW-50042 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 9430 8746.94 8698.29 9978 8758.21 8709.56 1916.36 S 804.42 W 683.06 2150.24 S 1298.30 W 1219.79 536.73 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPEmRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 ARCO ALASKA INC PBU/lS-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6 / 23 / 95 DATE OF SURVEY: 052195 JOB NUMBER: AK-MW-50042 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 9430 8746.94 8698.29 1916.36 S 804.42 W 683.06 9602 8748.65 8700.00 1992.78 S 959.26 W 854.30 171.24 9630 8749.68 8701.03 2004.50 S 983.61 W 880.32 26.01 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 ELECTRONIC MULTISHOT SURVEY JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC FT. TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS COURSE DLS TOTAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 8000 7729.00 7680.35 23 28 S 21.80 W .00 1297.20S 174.10W 470.62 8010 7738.17 7689.52 23 30 S 22.53 W 2.93 1300.89S 175.60W 472.94 8239 7947.55 7898.90 25 22 S 44.75 W 4.06 1378.28S 227.89W 541.77 8335 8033.16 7984.51 27 15 S 49.03 W 2.79 1407.17S 258.82W 578.57 8431 8118.72 8070.07 27 6 S 65.72 W 7.92 1430.62S 295.43W 619.62 8438 8125.26 8076.61 27 13 S 66.27 W 3.81 1431.99S 298.49W 622.92 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 1462.77 FEET AT SOUTH 11 DEG. 46 MIN. WEST AT MD = 8438 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 256.57 DEG. TIE IN POINT 8000' WINDOW POINT 8010' INTERPOLATED DEPTH 8438' SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/18-24A 5oo2921952Ol NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 8000 7729.00 7680.35 8438 8125.26 8076.61 1297.20 S 174.10 W 271.00 1431.99 S 298.49 W 313.16 42.16 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC FT. INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 8021 7748.65 7700.00 1305.08 S 177.40 W 272.78 1.78 8130 7848.65 7800.00 1343.41 S 198.87 W 282.03 9.25 8240 7948.65 7900.00 1378.65 S 228.26 W 292.09 10.06 8352 8048.65 8000.00 1412.16 S 264.99 W 303.78 11.70 8438 8125.26 8076.61 1431.99 S 298.49 W 313.16 9.38 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 SPERRY-SUN DRILLING SERVICES ~,.-~ ~ ~'., ~ '-. ~ ~ i ~ · ; .. ANCHORAGE ALASKA "; '-' ':'" DATE OF SURVEY: 042395 MWD SURVEY JOB NUMBER: AK-MW-50029 PAGE 1 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 8000 7729.00 7680.35 23 28 8010 7738.17 7689.52 23 30 8162 7877.14 7828.49 24 23 8322 8021.44 7972.79 27 0 8354 8049.91 8001.26 27 23 S 21.80 W .00 1297.20S 174.10W S 22.53 W 2.93 1300.89S 175.60W S 32.60 W 2.75 1355.37S 204.15W S 47.20 W 4.27 1407.95S 248.66W S 53.80 W 9.51 1417.24S 259.93W 470.62 472.94 513.36 568.86 581.98 8386 8078.33 8029.68 27 23 8418 8106.76 8058.11 27 12 8449 8134.25 8085.60 27 53 8481 8162.39 8113.74 28 53 8515 8191.92 8143.27 30 30 8547 8219.58 8170.93 30 0 8579 8247.45 8198.80 28 53 8610 8274.69 8226.04 28 12 8642 8302.78 8254.13 29 6 8674 8330.41 8281.76 31 23 8707 8358.51 8309.86 31 53 8738 8384.82 8336.17 31 53 8770 8411.87 8363.22 32 42 8801 8437.67 8389.02 34 35 8833 8463.64 8414.99 36 54 S 60.40 W 9.49 1425.22S 272.28W S 65.80 W 7.76 1431.86S 285.35W S 68.70 W 4.88 1437.40S 298.57W S 70.70 W 4.31 1442.67S 312.84W S 68.50 W 5.69 1448.55S 328.62W S 61.20 W 11.59 1455.38S 343.20W S 54.10 W 11.43 1463.77S 356.47W S 47.40 W 10.57 1473.13S 367.94W S 39.90 W 11.58 1484.22S 378.50W S 38.20 W 7.67 1496.74S 388.64W S 37.30 W 2.08 1510.43S 399.24W S 37.40 W .16 1523.45S 409.18W S 38.50 W 3.10 1536.93S 419.70W S 37.60 W 6.34 1550.46S 430.28W S 37.50 W 7.19 1565.28S 441.67W 595.85 610.11 624.25 639.36 656.07 671.83 686.70 700.02 712.87 725.64 739.13 751.83 765.19 778.62 793.14 8865 8488.82 8440.17 39 17 8897 8513.18 8464.53 41 30 8921 8530.69 8482.04 44 47 8953 8552.43 8503.78 49 35 8984 8571.73 8523.08 53 24 S 35.20 W 8.71 S 33.70 W 7.52 S 34.40 W 13.89 S 39.00 W 18.33 S 40.00 W 12.52 1581.19S 453.37W 808.21 1598.29S 465.09W 823.58 1611.88S 474.28W 835.68 1630.67S 488.33W 853.71 1649.39S 503.76W 873.07 9016 8590.49 8541.84 54 47 9048 8608.41 8559.76- 57 5 9080 8625.39 8576.74 58 47 9112 8641.65 8593.00 60 5 9144 8657.24 8608.59 61 35 S 41.50 W 5.79 S 42.90 W 8.05 S 43.80 W 5.82 S 44.20 W 4.20 S 45.10 W 5.29 1669.02S 520.68W 894.09 1688.65S 538.49W 915.97 1708.37S 557.11W 938.66 1728.19S 576.25W 961.88 1748.07S 595.89W 985.60 9176 8672.19 8623.54 62 42 9208 8686.61 8637.96 63 42 9239 8699.69 8651.04 66 24 9271 8711.89 8663.24 68 48 9302 8722.29 8673.64 72 0 S 44.40 W 3.94 S 44.40 W 3.13 S 47.50 W 12.57 S 49.90 W 10.21 S 52.70 W 13.38 1768.17S 615.81W 1009.64 1788.57S 635.79W 1033.82 1808.10S 656.00W 1058.00 1827.62S 678.22W 1084.15 1845.87S 701.01W 1110.56 Date SPERRY-SUN DRILLING SERVICES ANCHOR. AGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 MWD SURVEY JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 9334 8731.43 8682.78 74 48 S 53.70 W 9.25 9366 8738.79 8690.14 78 35 S 55.40 W 12.95 9398 8743.99 8695.34 82 41 S 57.80 W 14.80 9430 8746.94 8698.29 86 41 S 59.00 W 13.05 9489 8750.34 8701.69 86 41 S 59.00 W .00 1864.24S 1882.29S 1899.67S 1916.36S 1946.69S 725.57W 1138.71 750.93W 1167.57 777.29W 1197.24 804.42W 1227.51 854.91W 1283.66 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 2126.14 FEET AT SOUTH 23 DEG. 42 MIN. WEST AT MD = 9489 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 256.57 DEG. TIE IN POINT 8000' WINDOW POINT 8010' INTERPOLATED DEPTH 9489' SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SF~ARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 9000 8581.27 8532.62 1659.22 S 512.02 W 418.73 147.73 9489 8750.34 8701.69 1946.69 S 854.91 W 738.66 319.93 THE CALCULATION PROCEDURES /LRE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 042395 JOB NUMBER: AK-MW-50029 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC FT. INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE VERTICAL CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 8021 7748.65 7700.00 1305.09 S 177.39 W 272.78 8130 7848.65 7800.00 1344.42 S 197.44 W 282.10 8240 7948.65 7900.00 1382.07 S 223.88 W 292.21 1.78 9.32 10.10 8352 8048.65 8000.00 1416.79 S 259.46 W 303.94 8465 8148.65 8100.00 1440.13 S 305.77 W 316.69 8580' 8248.65 8200.00 1464.17 S 357.00 W 331.72 8695 8348.65 8300.00 1505.58 S 395.53 W 346.75 8814 8448.65 8400.00 1556.55 S 434.96 W 365.75 11.73 12.75 15.03 15.03 18.99 8947 8548.65 8500.00 1627.35 S 485.77 W 398.70 9126 8648.65 8600.00 1737.02 S 584.91 W 477.56 9459 8748.65 8700.00 1931.61 S 829.80 W 711.01 9480 8749.82 8701.17 1942.07 S 847.21 W 730.18 32.95 78.86 233.45 19.17 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS ARCO ALASKA INC PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 SPE__.~Y-SUN DRILLING SERVICES ~ 1 ANCHORAGE ALASKA DATE OF SURV~/r~'/~/~i/,~95 MWD SURVEY %F:/~ / ~ JOB ~BER: AK-Mw-Sd~// ~ KELLY BUSHING ELEV. = ~'.65 FT. OPE~TOR: ARCO ALAS~ IN~ TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS COURSE DLS TOTAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 9430 8746.94 8698.29 9465 8747.67 8699.02 9485 8747.01 8698.36 9524 8746.11 8697.46 9571 8747.30 8698.65 86 41 S 59.00 W .00 1916.36S 804.42W 1538.94 90 54 S 59.00 W 12.00 1934.38S 834.41W 1573.73 92 54 S 65.00 W 31.61 1943.76S 852.05W 1593.68 89 44 S 66.35 W 8.81 1959.82S 887.57W 1632.67 87 21 S 64.95 W 5.87 1979.19S 930.37W 1679.64 9606 8748.77 8700.12 9627 8749.56 8700.91 9653 8750.82 8702.17 9679 8752.48 8703.83 9690 8753.23 8704.58 87 50 S 64.60 W 1.70 1994.09S 962.01W 1714.61 87 48 S 64.07 W 2.53 2003.18S 980.92W 1735.60 86 39 S 60.38 W 14.84 2015.28S 1003.89W 1761.53 86 2 S 61.08 W 3.59 2027.96S 1026.53W 1787.40 86 7 S 60.20 W 8.02 2033.34S 1036.09W 1798.35 9731 8755.58 8706.93 9747 8756.14 8707.49 9764 8756.38 8707.73 9781 8756.44 8707.79 9814 8756.28 8707.63 87 16 S 59.50 W 3.28 2053.90S 1071.48W 1839.11 88 44 S 61.36 W 14.77 2061.79S 1085.39W 1855.05 89 37 S 62.05 W 6.62 2069.85S 1100.36W 1872.02 90 0 S 62.49 W 3.38 2077.76S 1115.40W 1889.00 90 31 S 66.18 W 11.30 2092.05S 1145.14W 1921.99 9844 8756.17 8707.52 9898 8756.79 8708.14 9938 8757.59 8708.94 9964 8758.02 8709.37 9978 8758.21 8709.56 89 54 S 67.06 W 3.59 2103.95S 1172.68W 1951.97 88 46 S 67.94 W 2.67 2124.61S 1222.56W 2005.91 88 56 S 72.51 W 11.43 2138.14S 1260.18W 2045.73 89 12 S 72.33 W 1.23 2146.13S 1285.38W 2071.95 89 11 S 72.30 W .21 2150.24S 1298.30W 2085.39 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 2511.80 FEET AT SOUTH 31 DEG. 7 MIN. WEST AT MD = 9978 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 245.00 DEG. SPE~.RY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 ARCO ALASKA INC PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 052195 JOB NUMBER: AK-MW-50042 KELLY BUSHING ELEV. = 48.65 FT. OPEP_ATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 9430 8746.94 8698.29 9978 8758.21 8709.56 1916.36 S 804.42 W 683.06 2150.24 S 1298.30 W 1219.79 536.73 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPE-.~IY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 ARCO ALASKA INC PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 6/23/95 DATE OF SURVEY: 052195 JOB NUMBER: AK-MW-50042 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 9430 8746.94 8698.29 1916.36 S 804.42 W 683.06 9602 8748.65 8700.00 1992.78 S 959.26 W 854.30 171.24 9630 8749.68 8701.03 2004.50 S 983.61 W 880.32 26.01 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SPERRY-SUN DRILLING SERVICES~/[-~ / /,.'~'[~ i it~,/ /i PAGE mNCHORAGE ALASKA , ~/i~ [~i" Si~LARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 ELECTRONIC MULTISHOT SURVEY JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 OPERATOR: ARCO ALASKA INC FT. TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS COURSE DLS TOTAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 8000 7729.00 7680.35 23 28 S 21.80 W .00 1297.20S 174.10W 470.62 8010 7738.17 7689.52 23 30 S 22.53 W 2.93 1300.89S 175.60W 472.94 8239 7947.55 7898.90 25 22 S 44.75 W 4.06 1378.28S 227.89W 541.77 8335 8033.16 7984.51 27 15 S 49.03 W 2.79 1407.17S 258.82W 578.57 8431 8118.72 8070.07 27 6 S 65.72 W 7.92 1430.62S 295.43W 619.62 8438 8125.26 8076.61 27 13 S 66.27 W 3.81 1431.99S 298.49W 622.92 THE CALCUIJ%TION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 1462.77 FEET AT SOUTH 11 DEG. 46 MIN. WEST AT MD = 8438 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 256.57 DEG. TIE IN POINT 8000' WINDOW POINT 8010' INTERPOLATED DEPTH 8438' SPERRY-SUN DRILLING SERVICES ANCHORAGE ALAS KA PAGE 2 SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 8438 8125.26 8076.61 1431.99 S 298.49 W 313.16 42.16 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHOR31GE ALASKA PAGE SHARED SERVICES DRILLING PBU/18-24A 500292195201 NORTH SLOPE BOROUGH COMPUTATION DATE: 5/ 5/95 DATE OF SURVEY: 042095 JOB NUMBER: AK-EI-50033 KELLY BUSHING ELEV. = 48.65 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 8000 7729.00 7680.35 1297.20 S 174.10 W 271.00 8021 7748.65 7700.00 1305.08 S 177.40 W 272.78 1.78 8130 7848.65 7800.00 1343.41 S 198.87 W 282.03 9.25 8240 7948.65 7900.00 1378.65 S 228.26 W 292.09 10.06 8352 8048.65 8000.00 1412.16 S 264.99 W 303.78 11.70 8438 8125.26 8076.61 1431.99 S 298.49 W 313.16 9.38 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: RE: 11 May 1995 Transmittal of Data ECC #: 6413.00 Sent by: PRIORITY MAIL Data: OH-LDWG Dear Sir/Madam, Reference: · ARCO 18-24A PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Prints/Films: 1 CN/GR FINAL BL+RF Run # 1 1 BHC-AC/GR FNL BL+RF Run # 1 1' CN/GR/SSVD FNL BL+RF Run # 1 1 BHC/AC/SSVD FNLBL+RF Run # 1 Received by: Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 / Anchorage, AK 99518 ~ RECEIVED ~~907) 563-7803 / MAY ~ 2 ]995Date: ~aska Oil & 13as C~n$. Commission LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: RE: 27 April 1995 Transmittal of Data ECC #: 6413.00 Sent by: PRIORITY MAIL Data: OH-LDWG Dear Sir/Madam, Reference: 18-24A PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Tapes/Diskettes: 1 LDWG TAPE + LIS Run # 1 Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Or FAX to (907) 563-7803 Received by: Date: RECEIVED APR 2. 8 1995 AJaska Oil & Gas Cons. Comm]ss]_o.n ^~chorage ALASKA OIL AND GAS / CONSERVATION COM HSSION TONY KNOWLE$, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 March 21, 1995 Terry Jordan Drilling Engineer Supervisor ARCO Alaska, Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit DS 18-24A ARCO Alaska, Inc. Permit No: 95-33 Sur. Loc. 987'SNL, 356'EWL, Sec. 19, TllN, R15E, UM Btmhole Loc. 2223'NSL, 1259'WEL, Sec. 24, TllN, R14E, UM Dear Mr. Jordon: 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 · Chairman ~ . BY ORDER OF THE COMMISSION dlf/Enclosures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 2O AAC 25.005 la. Type of work Drill [] Redrill E"]llb. Type of well. Exploratory[~ Stratigraphic Test [] Development Oil [] Re-Entry [] Deepeni-II Service [] Development Gas [] Single Zone [] Multiple Zone [] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool ARCO Alaska, Inc. KBE = 48.8' feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. 0. Box 196612, Anchoraqe, Alaska 99519-6612 ADL 28307 4. Location of well at surface 7. Unit or property Name 11. Type Bond(see 20 AAC 25.025) 987' SNL, 356' EWL, SEC. 19, T11N, R15E Prudhoe Bay Unit At top of productive interval 8. Well number Number 2411'NSL, 472' WEL, SEC. 19, T11N, R14E 18-24A U-630610 At total depth 9. Approximate spud date Amount 2223' NSL, 1259' WEL, SEC. 24, T11N, R14E 4/5/95 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD andTVD) property line ADL 28321-1259' feet No close approach feet 2560 10252' MD/8759' TVD feet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 AAC 25.035 (e)(2)) Kickoff depth 8000 feet Maximum hole angle 9o o Maximum surface 3330 psig At total depth (TVD) 8800'/4390 psig 18. Casing program Setting Depth s~ze Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD -I-VD MD TVD (include stage data) 6-3/4" 5-1/2" 17# L-80 NSCC 1593' 7850' 7579' 110' 8759' 180 sx Class "G" 3-3/4" 2-7/8" 8.5# L-80 NSCC 952' 9300' 8739' 10252' 8759' Uncemented 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured 9272 feet Plugs (measured) MAR '1 4 ]99,5 true vertical 8903 feet j~F~,S~,~ 0il & ~as Cons. Commission Effective depth: measured 9232 feet Junk (measured) ' ~llffl~ora'~ true vertical 8865 feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor 114' 20" 2150 # Poleset 114' 114' Surface 3507' 10-3/4" 1000 sx CS III & 3507' 3506' Intermediate 350 sx "G" Production 8596' 7-5/8" 200 sx Class "G" 8596' 8275' L i n e r 973' 5-1/2" 185 sx Class "G" 92 70' 8901' Perforation depth: measured 9068'-9078', 9082;9092', 9104'-9116' true vertical (Subsea) 8662'-8671', 8675'-8684', 8696'-8707' 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[] 21. I hereby certif, y that)h~ foregDing is true and correct to the best of my knowledge Signed .~;~,¢~/ i/ ,/~-,-/'~'4/'.~ Title Drilling Engineer Supervisor Date ~' / (,_,) Commission Use Only Permit Number APl number Approval date See cover letter ,/~:~,~--,r~3 50- ~'2"''~'" ~-' / ¢.5'"..2."',¢2 ~.~ "',,-~/'"¢~''"' for other requirements Conditions of approval Samples required [] Yes J~ No Mud log required [] Yes J~ No Hydrogen sulfide measures [] Yes ~ No Directional survey required [] Yes [] No Required working pressure for BOPE [] 2M; F13M; ~!~5M; [-IIOM; f-115M; Other: Original Signed By ~5'~c' /'~'~/c..7-~ by order of Approved by David W, Johnston Commissioner me commission Date Form 10-401 Rev. 12-1-85 Submit in triplicate I Well Name: IDS 18-24A Redrill Plan Summary Type of Redrill (producer or injector): I Producer RECEIVED MAR '! 4 1995 Ataska Oil & Gas Cons. Commission Anchora '~ Surface Location: 4292 FSL 4598 FEL S19 T11N R15E UM Target Location: 2411 FSL 472 FEL S 19 T11N R14E UM Bottom Hole Location: 2223 FSL 1259 FEL S24 T11N R14E UM I AFENumber: J ????? I I EstimateaStartDate: I np ., 1995 I I Rig: J Nabors 2ES IOperating days to complete: I 16/14 Rig/CTU IMD: I ~0252' I ITvD: 1871°ss I I KB~:: 148.80 Well Design (conventional, slimhole, etc.): IHorizontal Sidetrack. CTU will drill out 3.75" horizontal hole and mn 2-7/8" slotted liner. Objective: The objective of the proposed expenditure is to establish long-term, profitable, Zone 1 production from this well. This work is proposed as part of the redevelopment plans to access Sadlerochit Zone 1 reserves more effectively as defined in the "DS18 Development Plan" issued in October 1994 and revised in December 1994. The new wellbore is expected to encounter a 80' GLOC with a NLOC of 74'. The target interval in lowermost Zone 1 (13P ICL, razor 7160-7200) is an outer mouth bar deposit. The drainage area for the new location is considered to be 157 acres. Associated black-oil reserves are estimated to be 1,274 MBO. The average black-oil rate, net to the field, for the new wellbore during the first six months of production is expected to be 1200 bopd. Mud Program: Special design considerations After dressing off the kickoff plug we will displace to KCL system (Xanvis) and drill to 5.5" shoe depth with @ 10.2 ppg to 10.30 ppg. Horizontal hole ( 3-3/4" ) will be drilled underbalanced with CTU. Depth Density PV YP INT 10MIN FL OIL SOLIDS (TVD) (PPG) (CP) (#/FT) GEL GEL cc/30min (%) (%) KOP' 10.2 14 47 22 31 6.5 0 7 to to to to to to to to to 6.75"TD' 10.2+ 15 47 22 30 6 0 7 Directional'. [KOP: I 8000' MD I m~xim~m"o~e ~g~e:1 90 Close Approach Well: NONE Casing/Tubing Program: Hole Size Csg/ Wt/Ft Grade Conn Length Top Btm Tbg O.D. MDfrVD MD/TVD 6.75 5.5" 17# L-80 nscc 1593 7850/7579 9443/8759 3-3/4 2-7/8" 8.5# L-80 nscc 952 9300/8739 10252/8759 N/A 3.5" 9.3# L-80 nscc 7800 Surface 7800/7554 Cement Calculations: I Liner Size: 1 5.5" I Basis:I 50¢o open hole ex~ess, 80' shoe joint, 150' liner lap and 150' excess above line~ with DP. Total Cement Volume: @ 180 sks of Class G Blend @ 1.18 ft3/sx I Liner Size: [ 2-7/8" Slotted Basis:I Total Cement Volume: Will not be cemented Well Control: Well control equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and mud fluid system schematics on file with AOGCC. CTU BOP Equipment approved and on file with AOGCC. Reservoir pressures: Top of first sand to be encountered while drilling will be Put River Sand at 8000 TVDss which has BHP of 4200 psi or EMW of 10.09 ppg. Sadlerochit: RECEIVED MAP, 1 ~. 1~I~5 hiaska Oil & Gas Cons. Commission Anchora ':' BHP: 3595 psi @ 8800' SS BHT: 183° F @ 8800' SS 7.85 ppg EMW Estimated Estimated Top of Sag River Sand is at 8148 TVDss and it is in communication with Sadlerochit therfore with the pressures of 3600 psi will require @ 8.49 ppg MW. Hazards and Contingency Plans: In the event that the trouble is encountered while drilling 6.75" hole ( i.e. differential sticking, tight hole ect... ) we will set 5.5" liner and drill to TD, including horizontal, with 4.75" bit and will run end cement 3.5" liner. Will perforate with 2-1/8 guns via DP conveyed method or will set and cement 5.5" liner and CTU will drill out and finish the well. All of the necessary procedures will be sent to the rig if this situation occurs SUMMARY PROCEDURE: , , . Pre-rig work: Rig up for a full bore P & A down the tubing. Pump cement to cover the perfs up to 8700' MD and to squeeze away 5.3 bbls into perfs (25 bbls total). RU slick line and tag cement. ( AOGCC to witness this tag ) Cut the 3-1/2" tubing as close to the packer as possible and below the chemical injection line. KOP will be at 8010' MD so it will have to be cut @ 8210' MD. Kill the well with sea water, and freeze protect. Set and test a BPV and prepare the location for the rig. Move in drilling rig. Test 7-5/8" intermediate casing pack-off if not done during pre-rig work prior to accepting the rig. Pull BPV. Circulate diesel freeze protection cap from well with sea water and recover for future use if possible. 4. Install a BPV. Remove the production tree. 5. Install BOP's and test to 5000 psi. Remove the test plug and BPV. Note: A 11" IV wellhead. x 13-5/8" DSA is needed to flange up the BOP's to an FMC Gen RECEIVED MAR 1 4 1995 Oil & Oa~ Cons, Commission Anchor~ - 6. Pull and lay down the 3-1/2" tubing from top of fish to surface. (Chemical injection line must be handled and disposed of carefully ) , Displace to milling fluid and spot a 18 ppg pill on bottom. POOH and P/U a section mill RIH to -~ 8210' MD and displace to milling fluidand spot a 18 ppg pil-tronbottom.~ Cut a 50' section in the 7-5/8" casing starting from about 8010' MD. POOH and L/D the section mill. , Spot a balanced cement kick-off plug (150 cubic feet minimum) through open- ended drillpipe from 100' below the base of the section to 200' above the top of the section. 9. Rig-up Schlumberger and RIH with USIT Log to evaluate 7-5/8 casing. POOH and L/D USIT. Fax logs to Anchorage for evaluation. 10. Run in with a 6-3/4" steerable drilling assembly and dress the cement to 5' below the section top. Prior to kickoff circulate hole clean so that it is free of cement. Kickoff and directionally drill to the target with 90° hole angle at 8710' TVDss as per the attached directional plan #5. Obtain gamma ray, neutron, and acoustic formation evaluation logs via drill pipe conveyed method starting from the top of the Sag River Formation. 11. Run a 5.5" 17 # L-80 liner assembly to bottom in the 6-3/4" hole. Space out liner top packer/hanger @ 150' above the highest possible problem spot inside of 7-5/8 casing. 12. Cement the liner in place with the total cement volume based upon 40 % open-hole enlargement plus the 80' shoe volume, 150' lap volume and 150' excess on top of the liner with drillpipe in the hole. ( Note: if the caliper log is available use it and add 20% to caliper volume ) 13. P/U 4-3/4" bit ( do not use motor/mill combination ) as that may cause incidental sidetrack ) and clean-out 5.5" liner to - 10' above the 5.5" shoe. 14. POH. Lay down 4-3/4" ¢leanout assembly. 15. Run 4.5" L-80 completion and space it out so that tbg tail ( WLEG ) ends up inside of 5.5" tie back sleeve for conduit purposes only. 16. Release rig. 17. Complete appropriate documentation and hand-over to Production. 18MIRU CTU and extend 3-3/4 hole as per attached directional plan. 19. Run 2-7/8" L-80 Slotted Liner 20. R/D CTU I"___ s. HAR.E..D SE~.V.I.C. ES DR....ILL.I_NG~' ..... ... "- ~,.~:] scn]~,'g~r .' ...I DS18-24A (P'05) ANADRILLAKA-DPC VERTICAL SECTION VIEN '~,' , l,r i- ~ v ~,~ ITVO Scale,: ~ ~nch = 300 leer I iOep Scale;: I ~flch = 300 .teet ~' MAIL 0 7' 1995-,Dra~n ..... : 03107195 '~ ......... ~' .............. I ,, ~.. ~ ,J I ii i J ii ii I :~ el TOP ~ '~INOO~' eoo5 77~ 47~ ~s.~ -~ ......................... ~1 END 6/100 CURVE :::::::::::::::::::::::::::::::::::::: .... ::-::.::-:... ...... ~ .... ~,~, .... .~,~3 o~s~ ~ ~o.o, i ~[~m- ]~ ....... ~. - , ~ - ~- - .. ............ ~=~:~:-' ~=='.' ':: i--X' :' ~'::' '"~:-'- ' ......... ' i ~.~r-~: ..... r -~--~- .......... . ~-r,~n ~ . _~~ .... :~ ~ ' , ~ i ! I :: ~ ~-i~'m ...... J i J ' -~-~ - ~ ........ ~ r ~=.~- - _ ; .._ . . ~ -r-:--=-- -, ~-~--- - ~- - -.-. ~ ............ i -- : . ~ ...... .... ~ ~- ~ ...... , . J ~ i ~ : I" I _~ .: ........................ I ' .__~ .................. ' ..... ; .......... . : , j / ~ ,, I . -- .,i ..... ~ ~ ___i ~_. U · c r · . . 0 15.0 300 4r~ 600 750 900 1050 1200 1350 1500 1650 1800 t950 2100 2250 2400 2550 2700 Section ,D'epa'bt~ure .... ' .................... ~oa~rIil (cig3 ;B;~I~I~3 BI,52 JO:Oil X,4 I) ............. DS-:IS'=2-4A ...... (P'OB') ..... - .......... ...... SHARED sERVTcES DRILLZNG ' ~- PLAN VIE~ '. ANADRILL AKA-DPC 1200 30O 400 i500 600 ..... 1700 BO0 O0 ;6ALE... .... ,: 1 inch = 208 feet ]R^W. ' 03/07/9,5 ' MAR ) 7 19!r5 '' : ! larker IdonLit]catton 140 N/S E/W .. ,, ,- I ') l[£-IN 8000 '1297 I1 TOP OF I'f[NDOW- 8005 1299 175 ; · EI~ 6/100 CURVE 8178 1368 214 ' -- ...... . .......... ;1 SIkt':lf-12/lO0 CURVE BBB§ 1672 426 , il .... l ~jtG, ET .... g443 108l 8;~8 J ..... ., , , ! I I . 900 800 700 600 509 400 300 200 2200 lBO0 1700 1600 1500 1400 1300 1200 IlO0 lO00 ~naorill {093 IO]4i~ BI.52 Io:~ AE I) "' -2300 2400 !00 0 ¢- XEST ' EASt -> STATE OF ALASKA AI-~KA OIL AND GAS CONSERVATION COMMIS§I'I~N APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon ~ Suspend ~ Operation Shutdown Re-enter suspended well Alter casing __ Repair well ~ Plugging x Time extension Stimulate ,~ Change approved program ~ Pull tubing ~ Variance ~ Perforate ~ Other .. Plugback for redrill 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB) ARCO Alaska,/nc. Development x KBE = 50' feet Exploratory 3. Address Stratigraphic__ 7. Unit or Property name P. O. Box 196612, Anchorage, Alaska 99519-6612 Service Prudhoe Bay Unit 4. Location of well at surface 8. Well number 987' SNL, 356° EWL, SEC. 19, T11N, R15E At top of productive interval 2496' SNL, 67' EWL, SEC. 19, T11N, R15E At effective depth At total depth 2563' NSL, 50' WEL, SEC. 24, T11N, R15E RECEIVED MAR 1 4 1995 Alaska 0il & Gas Cons, Commission Anch0ra-~ 18-24 9. Permit number 89-63 10. APl number 50- 029-21952 11. Field/Pool Prudhoe Bay Field/Off Pool 12. Present well condition summary Total depth: measured true vedical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: 9272 feet Plugs (measured) 8903 feet 9232 feet Junk (measured) 8865 feet Length Size Cemented Measured depth True vertical depth 114' 20" 2150 # Poleset 114' 114' 3507' 10-3/4" looo sx CS 111/350 sx "G' 3507' 3506' 8596' 7-5/8" 200 SX Class "G" 8596' 8275' 973' 5-1/2" 185 sx Class "G" measured 9068'-9078', 9082'-9092', 9104'-9116' true vertical (Subsea) 8662'-8671', 8675'-8684', 8696'-8707' 9270' 89O 1' Tubing (size, grade, and measured depth) 3-1/2", L-80 tubing to 8393' MD Packers and SSSV (type and measured depth) 7-5/8", Baker FB-1 packer @ 8260'; 3-1/2" Camco TRDP-1A SSSV @ 2164'MD 13. Attachments Description summary of proposal y Detailed operations program __ BOP sketch __ 14. Estimated date for commencing operation 3/20/95 16. If proposal was verbally approved Name of approver Date approved 15. Status of well classification as: Oil x Gas__ Suspended __ Service 17. I hereby certify that the forego, lng is true and correct to the best of my knowledge. Signed '°~.~ ~ [,~ ~'~'".- Title DrillingEn.~ineerSupervisor _ FOR COMMISSION USE ONLY Conditions of approval: Notify Commission so representative may witness Plug integrity ~ BOP Test~ Location clearance ~ Mechanical Integrity Test ~ Subsequent form required 10- Date Approval NO. ~ ~---_ O,~ '?--- Approved by order of the Commission Form 10-403 Rev 06/15/88 Commissioner Date ,~--/-~.~. ~ SUBMIT IN TRIPLICATE WELL PERMIT CHECKLIST FIELD & POOL ~/5 6 WELL NAME GEOL AREA UNIT# PROGRAM: exp [] dev [] redrll~ serv [] ON/OFF SHORE (~)~ ADMINISTRATION ENGINEERING 1. Permit fee attached ................... 2. Lease number appropriate ................ 3. Unique well name and number .............. 4. Well located in a defined pool ............. 5. Well located proper distance from drlg unit bounda~-y.. 6. Well located proper distance from other wells ...... 7. Sufficient acreage available in drilling unit ...... 8. If deviated, is wellbore plat included ......... 9. Operator only affected party .............. 10. Operator has appropriate bond in force ......... 11. Permit can be issued without conservation order .... 12. Permit can be issued without administrative approval.. 13. Can permit be approved before 15-day wait ....... APPR DAT~ / 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. Conductor string provided ................ Y Surface casing protects all known USDWs ......... Y CMT vol adequate to circulate on conductor & surf csg.. Y CMT vol adequate to tie-in long string to surf csg . . . Y CMT will cover all known productive horizons ....... Y Casing designs adequate for C, T, B & permafrost .... ~ Adequate tankage or reserve pit ............. If a re-drill, has a 10-403 for abndnmnt been approved. Adequate wellbore separation proposed .......... If diverter required, is it adequate~ .......... Drilling fluid program schematic & equip list adequate ~sp~l;~u~;i2g' a;e;ult2; 't2s~ ~o~/~ Choke manifold complies w/~I ~-53 (May 8'4) ...... GEOLOGY 30. Permit can be issued w/o hydrogen sulfide measures .... Y~NN//~/~, 31. Data presented on potential overpressure zones ..... Y N ~/~ 32. Seismic analysis 9f shallow gas zones ........../Y . _ ./'~/ ~ 33. Seabed condition survey (if off-shore) ........ y N 34. Contact name/phone for weekly progress reports .... /Y N [exploratory only] / GEOLOGY: ENGINEERING: COMMISSION: Comments/Instructions: z HOW~o - A:~ORMS~cheklist rev 03/94 Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. x'a~pe Subfile 2 is type: LIS TAPE HEADER J C 0 FI t M E WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: 500292195201 ARCO ALASKA, INC. SPERRY-SUN DRILLING SERVICES 26-JUL-96 MWD RUN 2 MWD RUN 3 6731.00 R. FRENCH R. FRENCH S. WALLS S. WALLS MWD RUN 4 R. FRENCH W. HELMS JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 5 R. FRENCH W. HELMS MWD RUN 6 R. FRENCH W. HELMS MWD RUN 7 R. FRENCH W. HELMS MWD RUN 9 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 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: B. JAHN BASS/HUPP MWD RUN 10 B. JAHN BASS/HUPP MWD RUN 11 B. JAHN BASS/HUPP 19 liN 15E 987 356 48.65 47.25 18.10 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 7.625 8005.0 6.750 5.500 9485.0 3.750 9978.0 MWD - GR. ALL DEPTHS ARE MEASURED BIT DEPTHS. NO DATA WAS LOGGED ON DGWD RUN 1 DUE TO A FAILED SIDETRACK ATTEMPT. ALL GR DATA PRESENTED IS DOWNHOLE RECORDED. NO DATA ACQUIRED ON CTU RUN 1 SINCE TOOL WAS DROPPED AND ANOTHER HAD TO BE PICKED UP. GR PRESENTED FROM 9450' MD TO 9489' MD IS THROUGH 5.5" CASING. THE GR TRACE HAS A SMOOTHING RESOLUTION OF 2. THE RATE OF PENETRATION TRACE HAS A SMOOTHING RESOLUTION OF 4. A DATA GAP EXISTS IN THE GR LOG FROM 9435' MD TO 9450' MD SINCE INTERVAL WAS NOT LOGGED WHEN COILED TUBING WAS BROUGHT IN TO TD THE WELL. THE 3.75" COILED TUBING SECTION OF THE WELLBORE WAS DRILLED UNDERBALANCED USING CRUDE OIL FOR DRILLING FLUID. FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH~ GR 7949.0 $ BASELINE CURVE FOR SHIFTS: GR (WALS, CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH 7949.0 8134.0 8142.5 8147.5 8161.0 8169.5 8184.0 8188.5 8197.5 8206.0 8238.5 8245.0 8252.5 8258.5 8263.5 8267.5 8284.5 8297.5 8301.0 8323.5 8325.5 8334.5 8340.0 8352.0 8359.0 8369.0 8380.5 8477.0 8495.5 8501.5 8510.0 8518.5 8563.5 8578.5 8587.0 8595.O 8602.5 8613.5 8618.0 8624.0 8637,5 8648.5 8661.5 8707.0 all bit runs merged. STOP DEPTH 9952.0 OPEN HOLE, 24-APR-95) ......... EQUIVALENT UNSHIFTED DEPTH GR 7952.0 8137.0 8145.5 8151.0 8166.5 8174.5 8189.0 8193.0 8202.0 8210.0 8242.5 8249.0 8256.5 8263.0 8267.5 8272.0 8288.5 8301.5 8305.0 8326.0 8329.5 8337.5 8343.5 8354.5 8361.5 8371.5 8384.0 8480.5 8499.5 8506.5 8514.0 8523.5 8567.0 8582.5 8590.5 8598.0 8605.0 8616.5 8620.5 8627.0 8639.5 8651.0 8664.0 8708.0 8746.5 8759.5 8771.0 8791.5 8823.0 8870.5 8921.0 8965.5 8981.0 8987.0 8997.5 9005.5 9021.0 9044.5 9066.5 9074.0 9088.0 9131.0 9146.5 9175.5 9242.5 9285.5 9297.0 9327.0 9350.5 9415.0 9976.0 8747.5 8761.5 8772.0 8793.0 8823.5 8872.0 8923.0 8966.5 8982.0 8988.5 8996.0 9005.0 9021.5 9045.0 9066.0 9073.5 9087.0 9130.5 9147.0 9176.5 9242.5 9284.0 9295.0 9325.5 9351.5. 9416.0 9977.0 MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MWD 2 8005.0 MWD 3 8204.0 MWD 4 8524.0 MWD 5 8766.0 MWD 6 8912.0 MWD 7 9252.0 MWD 9 9489.0 MWD 10 9712.0 MWD 11 9955.0 $ REMARKS: MERGED MAIN PASS. ROP WAS SHIFTED WITH GR. MERGE BASE 8204.0 8524.0 8766.0 8912.0 9252.0 9489.0 9712.0 9955.0 9978.0 / ? ? SHIFT. OUT $ CN : ARCO ALASKA, WN : D.S. 18-24A FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME INC. Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 49 1014 BYTES * Tape File Start Depth = 9977.000000 Tape File End DePth = 7949.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 12172 datums Tape Subfile: 2 229 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape'Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 2 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 7952.0 $ 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: STOP DEPTH 8155.0 19 -APR- 95 MSC 1.32 DEP 2.041 MEMORY 8204.0 8005.0 8204.0 0 23.5 24.4 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER NGP 147 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.750 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.20 51.0 9.9 30000 7.0 .000 .0 .000 124.9 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 2. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: Tape File Start Depth = 8210.000000 Tape File End Depth = 7952.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 1552 datums Tape Subfile: 3 70 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape .Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8156.0 $ 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: STOP DEPTH 8475.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ 20-APR-95 MSC 1.32 DEP 2.041 MEMORY 8524.0 8204.0 8524.0 0 24.4 28.9 TOOL NUMBER NGP 147 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.750 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.30 56.0 9.3 31000 6.5 .000 .0 .000 129.0 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 3. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 15-24A : PRUDHOE BAY : NORTH SLOPE ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1' FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 8525.000000 Tape File End Depth = 8150.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 14426 datums Tape Subfile: 4 72 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8475.0 $ 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: STOP DEPTH 8717.0 21-APR-95 MSC 1.32 DEP 2.041 MEMORY 8766.0 8524.0 8766.0 0 28.2 31.9 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER NGP 110 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.750 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.30 56.0 9.6 31000 5.6 .000 .0 .000 133.2 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 4. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.$. 18 -24A : PRUDHOE BAY : NORTH SLOPE ~ ALASKA · · * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code'Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE~ 0) 1014 BYTES * Total Data Records: 8 Tape File Start Depth = 8770.000000 Tape File End Depth = 8470.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 3356 datums Tape Subfile: 5 71 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape ~Subfile 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8692.0 $ 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: STOP DEPTH 8890.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ 21-APR-95 MSC 1.32 DEP 2.041 MEMORY 8912.0 8766.0 8912.0 0 31.9 41.5 TOOL NUMBER NGP 110 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER' S CASING DEPTH (FT): 6.750 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.30 56.0 9.6 31000 5.6 .000 .0 .000 133.2 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN) : EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 5. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 8915.000000 Tape File End Depth = 8690.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 15780 datums Tape Subfile: 6 69 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 7 is type: LIS FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8864.0 $ 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: STOP DEPTH 9202.0 23-APR-95 MSC 1.32 DEP 2.041 MEMORY 9252..0 8912.0 9252.0 0 44.8 63.7 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER NGP 147 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER' S CASING DEPTH (FT): 6.750 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH:- MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.30 52.0 9.4 33000 5.4 .000 .0 .000 137.5 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 6. CN WN FN COUN STAT : ARCO ALASKA, INC. : D'.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves'. Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE~ 0) 1014 BYTES * Total Data Records: 10 Tape File Start Depth = 9255.000000 Tape File End Depth = 8860.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 5730 datums Tape Subfile: 7 73 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape'Subfile 8 is type: LIS FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in se]?arate files. BIT RUN NO: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9199.0 $ 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: STOP DEPTH 9436.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE. TOOL TYPE NGP NATURAL GAMMA PROBE $ 24-APR-95 MSC 1.32 DEP 2. 041 MEMORY 9489.0 92!52.0 9489.0 0 66,4 86,7 TOO]', NUMBER NGP 147 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6. '?50 8005.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: KCL BIOPOLYMER 10.30 52.0 9.4 33000 5.4 .000 .0 .000 141.6 .000 .0 .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 7. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 8 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 9490.000000 Tape File End Depth = 9195.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 17554 datums Tape Subfile: 8 71 records... Minimum record length:. Maximum record length: 42 bytes 1014 bytes Tape Subfile 9 is type: LIS FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 9 DEPTH INCREMENT: ,5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9257,0 $ 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: STOP DEPTH 9689,0 19-MAY-95 MSC 1,32 DEP 2.041 MEMORY 9712.0 9489.0 9712,0 0 86.0 92,9 TOOL STRING (TOP TO BOTTOM). VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER NGP 201 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 3,750 9485,0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: CRUDE OIL 6.90 0,0 0,0 0 0.0 .000 ,000 .000 .000 ,0 140,5 .0 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): ,00 ,000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): ,0 0 REMARKS: MWD RUN 9, CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 11 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 Tape File Start Depth = 9715.000000 Tape File End Depth = 9255.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 8494 datums Tape Subfile: 9 74 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape'Subfile 10 is type: LIS FILE HEADER FILE NUMBER: 9 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 10 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9690.0 $ 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: STOP DEPTH 9932.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 10. 20-MAY-95 MSC 1.32 DEP 2.041 MEMORY 9955.0 9712.0 9955.0 0 87.3 90.5 TOOL NUMBER NGP 201 3.750 9485.0 CRUDE OIL 6.90 0.0 0.0 0 0.0 .000 .000 .000 .000 .0 183.9 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18 -24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE~ 0) 1014 BYTES * Total Data Records: Tape File Start Depth = 9960.000000 Tape File End Depth = 9685.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 19208 datums Tape Subfile: 10 70 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape 'Subfile 11 is type: LIS FILE HEADER FILE NUMBER: 10 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 11 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 9910.0 $ 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: STOP DEPTH 9953.0 21-MAY- 95 MSC 1.32 DEP 2.041 MEMORY 9978.0 9955.0 9978.0 0 89.2 89.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ TOOL NUMBER NGP 110 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 3.750 9485.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM) : FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: CRUDE OIL 6.90 0.0 0.0 0 0.0 .000 .000 .000 .000 .0 145.9 .0 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): .0 0 REMARKS: MWD RUN 11. CN WN FN COUN STAT : ARCO ALASKA, INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: Tape File Start Depth = 9977.000000 Tape File End Depth = 9905.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 8930 datums Tape Subfile: 11 65 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes ~ape subfile 12 is type: LIS 96/ 7/26 01 **** REEL TRAILER **** 96/ 7/26 01 Tape Subfile: 12 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Fri 26 JLY 96 2:34p Elapsed execution time = 6.10 seconds. SYSTEM RETURN CODE = 0 O ALASKA INC D.S. 18 - 24A PRUDHOE BAY Ill Run 1' ~4 - Apa~- ~S95 AC/CN/GR Pipe Conveyed 8170 9477 RECEIVED APR 2 8 1995 WF. STE~ ATLAS Alaska Oil & Gas uo,~. 8,.,n-~l~slOn ^.c~or~,~ Logging Services Tape SubfiIe 2 is type: LIS TAPE HEADER PRUDHOE BAY UNIT OPEN HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA 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 RUN 1 6413.00 K. RICHARDS D. STERN D.S. 18 - 24A 500292195201 ARCO ALASKA INC. WESTERN ATLAS LOGGING SERVICES 26-APR-95 RUN 2 RUN 3 19 liN 15E 987 356 48.65 47.25 18.10 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 2ND STRING 3RD STRING 7.625 PRODUCTION STRING 6.750 REMARKS: AC/CN/GR. CIRCULATION STOPPED AT 0000, 24-APR-95 PIPE CONVEYED LOGGING OPERATION. 8005.0 9489.0 NEUTRON LOG PARAMETERS: SANDSTONE MATRIX, BOREHOLE CORRECTION = 6.750", CASING CORRECTIONS OFF, SALINITY = 0.00 PPM. FILE HEADER FILE NUMBER: 1 EDITED OPEN HOLE MAIN PASS All tool strings; hole data. DEPTH INCREMENT: FILE SUMMARY PBU TOOL CODE GR BC$ 2435 $ depth shifted and clipped curves; .5000 START DEPTH STOP DEPTH 8170.0 9442.0 8170.0 9477.0 8172.0 9449.0 GR (MEASURED DEPTH) BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH DT NPHI 8184.0 8184.5 8184.0 8188.0 8188.5 8188.0 8197.0 8198.5 8205.5 8206.0 8244.0 8245.0 8261.0 8261.5 8261.5 8267.5 8267.5 8280.5 8281.0 8281.0 8293.5 8294.0 8301.0 8301.5 8301.5 8325.5 8325.5 8325.5 8327.5 8327.5 8327.5 8338.5 8338.5 8345.5 8347.0 8354.0 8355.0 8355.0 8360.5 8361.0 8361.0 8366.5 8367.5 8374.5 8374.5 8380.5 8381.0 8381.0 8391.0 8391.5 8401.5 8401.5 8410.0 8411.5 8418.0 8419.5 8449.0 8449.0 8449.0 8477.0 8477.0 8489.0 8489.5 8489.5 8501.5 8502.0 8502.0 8503.0 8509.5 8510.0 8510.0 8520.5 8520.5 8573.5 8574.0 8573.5 8578.5 8578.0 8579.0 8579.0 8591.5 8592.0 8592.0 8602.0 8601.5 8601.5 8607.5 8607.0 8607.0 8613.5 8612.5 8615.0 8615.5 8615.5 8614.5 8624.0 8624.0 8649.0 8649.0 8649.0 all runs merged; no case 8661.5 8703.5 8710.0 8741.0 8743.5 8746.5 8759.5 8771.0 8792.0 8804.5 8823.0 8873.0 8891.0 8894.5 8910.0 8921.0 8965.5 8981.0 8986.5 8994.0 8998.0 9005.5 9021.0 9054.5 9065.0 9071.0 9126.5 9130.5 9131.0 9146.5 9147.0 9242.0 9242.5 9261.0 9280.5 9296.5 9308.0 9317.5 9350.0 9415.0 MERGED DATA SOURCE PBU TOOL CODE GR BCS 2435 $ REMARKS: 8662.0 8703.0 8709.5 8742.0 8744.0 8743.5 8746.0 8746.5 8760.0 8759.0 8771.5 8771.5 8792.0 8804.5 8823.5 8823.5 8873.0 8873.0 8889.5 8894.0 8910.5 8910.5 8922.0 8922.0 8965.5 8965.5 8981.0 8981.0 8986.0 8993.5 8992.5 8996.5 8997.0 9005.0 9005.0 9020.5 9021.0 9055.0 9065.5 9065.5 9071.5 9071.5 9126.5 9131.0 9130.5 9147.0 9148.0 9241.5 9241.0 9260.0 9280.5 9280.5 9296.0 9308.0 9308.0 9317.0 9317.0 9350.5 9350.5 9415.5 9415.5 RUN NO. PASS NO. MERGE TOP 1 3 8170.0 1 3 8170.0 1 3 8172.0 MAIN PASS. TEND, TENS, & MTEM WERE SHIFTED WITH DT. FUCT & NUCT WERE SHIFTED WITH NPHI. MERGE BASE 9442.0 9477.0 9449.0 CN / ? ?MATCH1. OUT / ? ?MATCH2. OUT $ : ARCO ALASKA INC. : D.S. 18-24A FN ~ : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 8 Curves: Name Tool Code Samples Units GR BCS 68 1 GAPI DT BCS 68 1 US/F MTEM BCS 68 i DEGF TEND BCS 68 1 LB TENS BCS 68 1 LB NPHI 2435 68 1 PU-S FUCT 2435 68 . 1 CPS NUCT 2435 68 I CPS API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 67 465 06 6 4 4 84 653 71 5 4 4 20 789 90 0 4 4 20 789 90 0 4 4 20 789 90 0 4 4 98 211 23 1 4 4 98 211 23 1 4 4 98 211 23 1 32 * DATA RECORD (TYPE# 0) Total Data Records: 96 1014 BYTES * Tape File Start Depth = 9487.000000 Tape File End Depth = 8150.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 24076 datums Tape Subfile: 2 265 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 RAW OPEN HOLE MAIN PASS Curves and log header data for each run and tool string in separate files; Tool String #1 for Sadlerochit run presented first (primary depth control string used to depth shift the Sadlerochit interval) followed by files for other main pass tool strings per run. RUN NUMBER: 1 TOOL STRING NUMBER: 1 PASS NUMBER: 3 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8165.0 AC 2435 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): 8167.0 8170.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SWIVEL CABLEHEAD TENSION TEMPERATURE KNUCKLE JOINT GAMMA RAY COMPENSATED NEUTRON PULSE CODE MODULATOR KNUCKLE JOINT KNUCKLE JOINT ACOUSTILOG SWIV CHT TEMP KNUC GR CN PCM KNJT KNJT AC $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) STOP DEPTH 9447.0 9482.5 9454.0 24-APR-95 FSYS REV. J001 VER. 1.1 0 24-APR-95 1330 24-APR-95 9489.0 9485.0 8200.0 9477.0 1200.0 TOOL NUMBER 3944XA 3974XA 2806XA 3923XA 1309XA 2435XA 3506XA 3923XA 3923XA 1603MA/1609EB 6.750 8005.0 .0 KCL POLYMER 10.30 56.0 9.4 4.6 171.0 MUb AT-MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT): MUD FILTRATE AT MT: MUD FILTRATE AT BHT: MUD CAKE AT MT: MUD CAKE AT BHT: NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): REMARKS: MAIN PASS. $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA .125 .057 .121 .000 .240 .000 THERMAL SANDSTONE .00 6.750 .0 75.0 171.0 66.0 .0 66.0 .0 * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 12 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR AC 68 1 GAPI 2 AC AC 68 1 US/F 3 TEMP AC 68 1 DEGF 4 CHT AC 68 1 LB 5 TTEN AC 68 1 LB 6 TEN AC 68 1 LB 7 SPD AC 68 1 F/MN 8 CNC 2435 68 1 PU-S 9 CNCF 2435 68 1 PU-S 10 CN 2435 68 1 PU-L 11 LSN 2435 68 1 CPS 12 SSN 2435 68 1 CPS 4 4 06 969 49 6 4 4 48 852 89 1 4 4 61 008 99 5 4 4 95 558 30 1 4 4 95 558 30 1 4 4 95 558 30 1 4 4 61 094 30 1 4 4 98 211 23 1 4 4 98 211 23 1 4 4 52 326 75 5 4 4 84 023 70 1 4 4 83 368 34 1 48 * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records: 289 Tape File Start Depth = 9487.000000 Tape File End Depth = 8116.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 71306 datums Tape Subfile: 3 368 records... Minimum record length: 62 bytes Maximum record length: 994 bytes Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 RAW OPEN HOLE REPEAT PASSES Curves and log header data for each pass, tool string, and run in separate files. RUN NUMBER: 1 TOOL STRING NUMBER: 1 PASS NUMBER: 2 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 8165.0 AC 2435 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): 8171.0 8170.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SWIVEL CABLEHEAD TENSION TEMPERATURE KNUCKLE JOINT GAMMA RAY COMPENSATED NEUTRON PULSE CODE MODULATOR KNUCKLE JOINT KNUCKLE JOINT ACOUSTILOG SWIV CHT TEMP KNUC GR CN PCM KNJT KNJT AC $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT): STOP DEPTH 9444.0 9479.0 9450.5 24-APR-95 FSYS REV. J001 VER. 1.1 0 24-APR-95 1330 24-APR-95 9489.0 9485.0 8200.0 9477.0 1200.0 TOOL NUMBER 3944XA 3974XA 2806XA 3923XA 1309XA 2435XA 3506XA 3923XA 3923XA 1603MA/1609EB 6.750 8O05.0 .0 KCL POLYMER 10.30 56.0 9.4 4.6 171.0 · 125 .057 75.0 171.0 MUD FILTRATE AT MT: MUD FILTRATE AT BHT: MUD CAKE AT MT: MUD CAKE AT BHT: NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): REPEAT PASS (DOWN). $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 18-24A : PRUDHOE BAY : NORTH SLOPE : ALASKA .121 .000 .240 .000 THERMAL SANDSTONE .00 6.750 .0 66.0 .0 66.0 .0 * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 12 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR AC 68 1 GAPI 2 AC AC 68 1 US/F 3 TEMP AC 68 1 DEGF 4 CHT AC 68 1 LB 5 TTEN AC 68 1 LB 6 TEN AC 68 1 LB 7 SPD AC 68 1 F/MN 8 CNC 2435 68 1 PU-S 9 CNCF 2435 68 1 PU-S 10 CN 2435 68 1 PU-L 11 LSN 2435 68 1 CPS 12 SSN 2435 68 1 CPS 4 4 06 969 49 6 4 4 48 852 89 1 4 4 61 008 99 5 4 4 95 558 30 1 4 4 95 558 30 1 4 4 95 558 30 1 4 4 61 094 30 1 4 4 98 211 23 1 4 4 98 211 23 1 4 4 52 326 75 5 4 4 84 023 70 1 4 4 83 368 34 1 48 * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records: 288 Tape File Start Depth = 9490.000000 Tape File End Depth = 8125.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 95070 datums Tape Subfile: 4 365 records... Minimum record length: 62 bytes Maximum record length: 994 bytes Tape Subfile 5 is type: LIS 95/ 4/25 01 **** REEL TRAILER **** 95/ 4/27 01 Tape Subfile: 5 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Thu 27 APR 95 10:38a Elapsed execution time = 9.61 seconds. SYSTEM RETURN CODE = 0