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Home My WebLink About192-075 • bp BP Exploration (Alaska) Inc. 0 Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 May 20, 2012 S ANNEDAUG 7 2012 Mr. Jim Regg Alaska Oil and Gas Conservation Commission - 333 West 7 Avenue OI d � L- " I � / ` Anchorage, Alaska 99501 1 Subject: Corrosion Inhibitor Treatments of GPB DS -16 Dear Mr. Regg, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB DS- 16 were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my altemate, Gerald Murphy, at 659 -5102. Sincerely, S O Mehreen Vazir BPXA, Well Integrity Coordinator • • BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) DS-16 Date: 03/06/2012 Corrosion Initial top of Vol. of cement Final top of Cement top Corrosion inhibitor/ Well Name PTD it API # cement pumped cement oft date inhibitor sealant date ft bbls ft na gal 16-01 1801360 50029205330000 Sealed conductor NA NA NA NA NA 16-02 1801500 50029205440000 Sealed conductor NA NA NA NA NA 16-03 1810110 50029205540000 Sealed conductor NA NA NA NA NA 16-04A 1921510 50029205610100 Sealed conductor NA NA NA NA NA 16-05A 2010100 50029205740100 Sealed conductor NA NA NA NA NA 16-06B 2060110 50029205840200 Sealed conductor NA NA NA NA NA 16-07 1852040 50029214300000 Dust Cover NA NA NA NA NA 16 1991260 50029205490100 Sealed conductor NA NA NA NA NA 16-09A 1910380 50029205580100 Sealed conductor NA NA NA NA NA 16-10A 1991230 50029205060100 Sealed conductor NA NA NA NA NA 16-11 1801180 50029205160000 Sealed conductor NA NA NA NA NA 16-12A 1990190 50029205650100 Sealed conductor NA NA NA NA NA 16-13 1810270 50029205660000 Sealed conductor NA NA NA NA NA 16-14B 2060030 50029205700200 Sealed conductor NA NA NA NA NA 16-15 1852640 50029214740000 6.0 NA 6.0 NA 39.10 10/25/2011 16-16 1801270 50029205250000 Sealed conductor NA NA NA NA NA 16-17 1852200 50029214410000 72.0 17.0 1.5 9/3/2011 8.60 3/6/2012 16-18 1852430 50029214610000 34.0 13.0 0.7 9/3/2011 8.50 10/25/2011 16-19 1852650 50029214750000 16.0 10.0 0.3 9/3/2011 2.80 3/6/2012 16-20 1852850 50029214930000 8.0 NA 8.0 NA 40.80 8/18/2010 16-21 1853120 50029215180000 29.0 10.0 0.3 9/3/2011 7.65 10/25/2011 16-22 1900510 50029220400000 8.0 NA 8.0 NA 51.00 8/23/2010 16-23A 2010540 50029220500100 5.3 NA 5.3 NA 32.70 8/23/2010 16-24 1880240 50029215360000 0.8 NA 0.8 NA 8.50 10/25/2011 16-25 _ 1920510 50029222700000 0.3 NA 0.3 NA 10.20 10/25/2011 16-26A 1991270 50029222670100 1.0 NA 1.0 NA 8.50 8/18/2010 16-27A 2000040 50029222600100 1.3 NA 1.3 NA 10.20 8118/2010 16-28 1920620 50029222760000 0.0 NA 0.0 NA 7.65 10/25/2011 16-29A 1920660 50029222720000 Sealed conductor NA NA NA NA NA 16-30 1920760 50029222810000 0.8 NA 0.8 NA 6.80 8/18/2010 --- 16-31 1920750 50029222800000 0.5 NA 0.5 NA 5.10 8/18/2010 bp BP Exploration (Alaska) Inc. 900 East Benson Boulevard P. O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 August 25, 2002 Tom Maunder Alaska Oil & Gas Conservation Commission 333 West 7th Avenue Suite 100 Anchorage, AK 99501 Dear Tom: Re: Sundry Notice for well 16-31 Conversion from Shut-In Producing well to a MIST well BP Exploration Alaska, Inc. proposes to convert well 16-31 from a shut-in production well to an active MIST injector as part of the Prudhoe Bay Oil Field Enchanced Recovery project. The procedure includes the following major steps: S D/T, Dummy off GL Design, Run Static Survey. S Install SSSV before injection start up. DHD PPPOT-T & PPPOT-IC DHD AOGCC witnessed MIT IA Test Slickline Work: 1. Drift and tag to at least 11760' MD, to verify access to perfs. 2. DGLVs 3. Obtain SBHPS stop count at: 11565' (8800' SS). 4. Install SSSV before MI injection start up. MITIA to 4000 psig. If you have any questions concerning this Sundry Application, please don't hesitate to call me at 564-5273, or e-mail me at CarpenKL@BP.com Sincerely, Kristin Carpenter Petroleum Engineer STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of request: Abandon_ Suspend_ Operational shutdown _ Re-enter suspended well _ /,~nversion f/ Conversion from Alter casing _ Repair well _ Plugging _ Time extension _ Stimulate _/ROD to MIST INJ Prod to MIST Inj Change approved program _ Pull tubing _ Vadance _ Perforate~/ Other_X 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF orJ~B'feet) BP Exploration (Alaska), Inc. Development_X RKB 68.0 feet,,/ 3. Address Exploratory__ 7. Unit or Property n~e P. O. Box 196612 Stratigraphic _ Anchorage, AK 99519-6612 Service__ Prudhoe Ba~/dnit 4. Location of well at surface 8. Well nu~er 1800' FNL, 3998' FEL, Sec. 24, T10N, R15E, UM (asp's 720069, 5929153) 16;~1 At top of productive interval 9. Pe~it number / approval number 5017' FSL, 2219' FEL, Sec. 18, T10N, R16E, UM (asp's 726865, 5931417) // 192-075 At effective depth /,~O. APl number 4901' FNL, 2258' FEL, Sec. 18, T10N, R16E, UM (asp's 726822, 5931532)/ 50-029-22280-00 At total depth , / 11. Field / Pool 4839' FNL, 2147 FEL, Sec. 18 T10N, R16E, UM (asp's 726931, 5931597y Prudhoe Bay Field / Prudhoe Bay Pool 12. Present well condition summary Total depth: measured 12002 feet Plugs (me~ured) CMT set @ 11774' (05/30/1993) true vertical 9230 feet Effective depth: measured 11774 feet Jun/l~measured) true vertical 9040 feet Casing Length Size Cemented Measured Depth True vertical Depth Conductor 111' 20" 450 ~ Poleset 151' 151' Surface 4146' 10-3/4" 26~Y~cf A~ III, 400 cf 'G' .'~ 4186' 3489' Intermediate 11510' ,~--5/8" \ / ~F r~L/ 11550' 8856' Liner 452' 7" \ m,\ /f~18,',f~;I~Uss 'G' n "~ 11550'- 12002' 8856'- 9230' Perforation depth: measured Open P~~'-~1~1..,7,.5,.,0,' , .... Sqzd P~ 1723', 11750'-11762', 11766-11782 ~-~ i,'~ true vertical Open. errs 8988,'-8997,', 9008,'-9020,' , Tubing (size, grade, and measured depth yl/2", 12.6#, 13CR-80 TBG to 11505' MD. Tubing Tail @ 11554'. / Packers & SSSV (type & measured depthy 7~er SABL-3 Packer set @ 11505' MD, .// ~O SSSV Nipple @ 2203' MD. 13. Attachments Descripti~ed operations program _ BOP sketch __ 14, Estimated date for commen~us of well classification as: Septemb.,efr 01,2002 16. If proposal was verbally a~lSroved Oil _ Gas __ Suspended __ / Name of approver / D~ervice MIST Iniection Well 17. I hereby certify that theyegoing is trueand correct to the best of my knowledge. Questions? Call Kristin Carpenter @ 564-5273. A. - -t- Signed l~.~',~;~cza.~--~-~ Title'. P~dhoe Bay Petroleum Engineer Date Auqust 251 2002 Kr~stm Carpent~ ' Prepared by DeWar/ne R Schnorr 564-5174 FOR COMMISSION USE ONLY Conditions of a~proval: Notify Commission so representative may witness I Approval no,~., ~_..,~..~?..... Plug integrity __ [~OP Te~t __ Lodation elearano~ __ - Mechanical Integrity Test __ Subsequent form required lO- Appr0~ed by order of the Commission Commissi?~r_ ......... Date Form 10-403 Rev 06/15/88 · O IIGINAL SUBMIT IN TRIPLICATE TREE = ? WELLI-F_At~ = MCEVOY 16 31 SAFETY NOTES-7x 10 ANN LOADED W/13.5 A.L~'UATOR = Otis ma PFG BAR. DIE TO 4285MD. PLUG. W/Od CMT KB. ELEV = 68 BF. ELEV: '~ KOP = 777 Max Angle = 48 @ 7911 DatumDatumMD:TvD: 8800'1156555 ~-]-- ' t 2203' H 4-1/~' °~s"x°s~v N'P"D:3'813" I GAS LIFT MANDRFI S I 10-3/4"CSG, 45.5#, NT-80,1D=9.953" H 4186' ~ ~k SIAl 35311VD TvD3016 DEV45 KBMGTYPE LATCHBK_5 VLV 2 6200 4954 42 KBMG BK-5 3 7784 6093 45 KBMG BK-5 4 8721 6735 45 KBMG BK-5 '~ 5 9440 7255 44 KBMG BK-5 ~ Minimum ID = 2.687" @ 11460' 6 9979 7653 41 KBMG BK-5 8 10981 8404 40 KBMG BK-5 9 11398 8732 36 KBMG BK-5 10 11469 8790 36 KBMG BK t-- --I 11460' H 4-1/2"ALPHA SOFT SET 'TBG PATCH, ID:2.687" Z ~ 11505' [--~ 7-5/8"X4-1/2"BKRSABL-3PKR, ID=3.875" 17-5/8"CSG, 29.7#,L-50,1D=6875"H 11550' ~ I I~ 11542' H 4-1/Z'OTISXNNIP'ID=3'725"I ~ I 11563' H ELM TT LOGGED 08/23/921 PERFORATION SUMMA RY II R~F LOG' BHCS ON 08/09/92 Note: Refer to Productbn DB for histor,cal perf data II SEE I SPF INTERVAL Opn/Sqz DATE II 3-3/8"I 4 11713-11723 S 05/29/93 II 3-3/8"! 4 11736-11756 S 05/29/93 3-3/8" 1 11766-11782 S 05/29/93 3-3/8" 1 11756-11762 S 05/29/93i 3-3/8"i 4 11712-11722 O 06/07/93 3-3/8" 4 11736-11750 O 06/07/93 I I ~ I 11774' H CMT(SEr05/30/93) I I 7" LNR, 26#, L-80,0 0383bpf, ID= 6.276" H 12002' '~~ · DA~ REV BY COMMENTS DATE REV BY COMMENTS PRUDHOEBAY UNIT 08/31/92 ORIGINAL COMFLETION WELL: 16-31 01/09/01 SIS-QAA CONVERTED TO CANVAS PE~IVIT No: 192-0750 02/22/01 SIS-LG REVISION APl No' 50-029-22280-00 07/14/01 RN/TP CORRECTIONS SEC 24, T10N, R15E 2140.78 FEL4835 69 FNL SEE I SPF INTERVAL Opn/Sqz DATE 3-3/8" 4 11713-11723 S 05/29/93 3-3/8 4 11736-11756 S 05/29/93 3-3/8" 1 11766-11782 S 05/29/93 3-3/8" 1 11756-11762 S 05/29/93 3-3/8"i 4 11712-11722 O 06/07/93 3-3/8" 4 11736-11750 O 06/07/93 Subject: 16-31 Conversion to MI injector Date: Wed, 20 Nov 2002 18:52:49 -0600 From: "Carpenter, Kristin L" <Kristin. Carpenter~bp.com> To: "'winton_aubert~admin.state.ak.us'" <winton_aubert~admin.state.ak.us> Winton, As I mentioned this morning on the phone, well 16-31 will not be converted to a MI injector following the results of several tests. Please feel free to remove the item from your list. If you have any further questions regarding this issue, please feel free to contact me. Thanks, Kristin Carpenter DS ll&16 Engineer GPB Waterflood BP Exploration (Alaska), 907.564.5273 carpenkl®bp.com Inc. THE MATERIAI. UNDER THIS COVER HAS BEEN MICROFILMED ON O.R BEFORE NOVEMBER 13, 2000 pl~ MAT -T-'.-. H E R IA L U N D E Ill IS MARK-ER R Wells capable of unassisted flow. Subject: Re: Wells capable of unassisted flow. Date: Fri, 04 Jun 1999 11:19:12 -0800 From: Blair Wondzell <Blair_Wondzell~admin.state.ak.us> Organization: SOA-AOGCC To: PRB Problem Wells <? 1041 ~mail.aai.arco.com> Jerry, I just finished reading your comments on these wells. Your proposal sounds fine to me. I agree you should proceed as you've proposed. Blair 6/4/99 PRB Problem Wells wrote: Blair: This is a summary of the requests I have from Engineering to temporarily flow wells that are capable of unassisted flow: DS 3-34: Post packer cement squeeze; determine if capable of unassisted flow to surface. Has broken gaslift valve in station 4. Flow period approximately 1-week. DS 11-25: Documented hole below 5 1/2" x 3 1/2" crossover, needs patching. Needs flow testing after add perforations to determine if additional wellwork is needed prior to patching. Wireline tools will not be able to get below patch once installed. Flow period request for 2-4 weeks. DS 13-33: Documented hole in tubing, not economic to repair. Passed CMIT T x IA. Need flow test to determine if worthy to apply for Sundry Notice to continue flowing with known communication (capable of unassited flow). Flow period for 2-3 weeks. DS 16-31: SI since 1994 with leaking patch over GLM #10. Need flow test to determine if worthy to apply for Sundry Notice to continue flowing with known communication (capable of unassited flow). Flow period for 2-3 weeks. DS 18-17: Documented T x IA communication through corrosion holes. Request to flow well with corrosion probe installation for 4-6 weeks to determine corrosion rate for engineering study. This well is capable of unassisted flow. DS 18-25: Documented T x IA communication through corrosion holes. Request to flow well with corrosion probe installation for 4-6 weeks to determine corrosion rate for engineering study. This well is capable of unassisted flow. I can provide more detail, but the main concern is that these wells are, or may be, capable of unassisted flow and have known communication. At the termination of these flow tests the wells will be SI and secured. Let me know if you need additional information, and whether these short-term flow tests are worth bothering you with. Thanks ! Jerry Dethlefs Blair Wondzell <Blair Wondzell@admin.state.ak.us> on 05/24/99 10:34:46 AM To: PRB Problem Wells/AAI/ARCO CC: Subject: Re: Wells capable of unassisted flow. Jerry, These types of problems are in a poorly defined area of our regulation, therefore my practice has been to check on the regulation goals of protection of casing. If the casing appears to be protected, then agree that the request is appropriate. For example if you have a "minor" tubing leak in a gas lift well, this is not much different than having a choke in a gas lift mandrel - so no problem. My suggestion is that by E-mail you provide data on the the specific wells such as depth of leak, severity, type of lift, why annulus will not be subjected to well bore fluids and similar thoughts that come to mind. We can evaluate and advise (on most I'm sure) that there is no problem wi th continued production. Lets give this a try. Thanks. Blair. PRB Problem Wells wrote: I of 2 ~;/a/oo 11.')1 Wells capable of unassisted flow. > Blair: As a production well develops T x IA communication ir has always been our > practice to SI the well except for very short periods of time we may need to do > diagnostics. The wells have been repaired and tested prior to resuming routine > production. As you have noticed, recently we have been evaluating several wells > with iow future potential, especially due to the cost of RWO's. It has been > great to get approval for some of these wells (14-40, 14-06) to continue to flow > with known communication problems. I expect more of these requests to come your > way. > As part of the process to develop a Sundry we have found it necessary to flow > these wells for a limited period of time prior to submission of the 10-403 to > figure our if they are even worth producing on a routine basis. In addition, I > receive requests periodically from the Engineering staff to flow other wells > capable of unassisted flow that have not yet been repaired, or have some other > diagnostic or evaluation requirement needed. Since the frequency of these > requests have increased, I feel some guidance from you is in order so we don' t > risk operating wells out of compliance. > I currently maintain a list with my alternate of wells that have been reques ted > for flow by Engineering. This list now has 7 wells capable of unassisted flow, > of which 2 wells are currently on line. The list includes the well name, purpose > of flowing the well, approximate duration (1-6 weeks), the date brought on line, > and the mechanical condition or problem with the well. Our criteria is based on > flowing the well no longer than is needed to obtain the requested data; in other > words, flowing for production of oil is not a legitimate request. At the > termination of the flow period the well is SI, secured, and removed from the > list. > Do you want to be informed of the wells on this list, given the short duration > of these tests? This is a fairly new procedure for us to use, but has be very > useful for tracking' these situations. Should you want to be kept informed at > this level of derail, I could periodically forward the list to you. Let me know > what you prefer. Thanks! > Jerry De rhl els > ARCO Problem Wells Specialist WSSSV Tubing Casing Gas Lift MandrelNalve 1 Casing Gas Lift MandrelNalve 2 Gas Lift MandrelNalve 3 Gas Lift MandrelNalve 4 Gas Lift MandrelNalve 5 Gas Lift MandreINalve 6 Gas Lift MandrelNalve 7 Gas Lift MandrelNalve 8 Gas Lift MandrelNalve 9 PATCH Gas Lift MandrelNalve 10 PKR ..... NIP NOGO 11774' Cmt Top TTL Liner __ Perf Perf CMTRET SQZ 16-31 16-31 APl:1500292228000 Well Type: I PROD RKB:f 68 ft H2S:I Spud: 7/28/92 KOP:I0.00 ftKB SSSV Type: 2 : Ori.q Compltn: 8/31/92 PBTD:t 11774.00 ftKB Annular Fluid:l 7.0 Diesel/8.5 SW Last W/O: 8/13/92 TD:i 12013.00 ftKB Reference Log: BHCS 48 deg Ref Log Date: 8/9/92 ~ Max Hole Angle:I @ 7911 I TD: Last Tag: Last Ta.q Date: ~ Anqle ~ TS: 34 de~ ~ 11713 Rev Reason: SSSV = CAT#2 Last Update: 4/16/98 Angle ~,, 34 deq (~ 12013 Elevations KB I 68 ft ICes Flng [ Grd I 37 ft t Tub Head ' Oft Oft Other (plugs, equip., e' Depth liD 22033.813 114602.687 1149613.813 11505 0.000 11530 0.001 ! 1154213.725 11554 0.000 11774 0.000 General Notes :c.) - All Type 'Description WSSSV PATCH NIP PKR 4-1/2" Otis HXO SSSV Nipple i 4-1/2" Alpha Soft Set Tubing Patch (Set 09/06/94) 4-1/2" Otis X Nipple 17-5/8" x 4-1/2" Baker SABL-3 Packer NIP NOGO TTL CMTRET ! Cement (Set 05/30/93) ! 4-1/2" Otis X Nipple ID=3.813" w/PXN Plug (Set 07/15/94). 14-1/2" Otis XN Nipple 14-1/2" Tubing Tail W/L Re-entry Guide Date Note FRAC ZN4 03/08/94 11460 Min ID = 2.687" (4-1/2" Alpha Soft Set Tubing Patch (Set 09/06/94)) NOTE: 7x10 Ann Loaded W/13.5 PPG Barite Diesel to 4285'MD. Plugged W/Drl Cmt TTL ELM @ 11536: ELM Tubing Tail (Logged 08/23/92) Daterun: 1992-08-31 Casing String - PRODUCTION Item I Top I Btm (in) i (ftKB) r (ftKB) I 7.625 in Casing 0.00 11550.001 29.70 Grd L-80 Casing String - SURFACE Item (in) ! Top [ Btm : Wt I Grd ! ' ' ~ (ftKB) (ftKB) 45.50 10.750 in Casing i 0.00 4186.00', NT-80 , Casing String - LINER Item ; Top Btm ! Wt6.00 '2 G rd (in) i (ftKB) (ftKa) 7.000 in Liner 11550.00 12002.00 L-80 Tubing String - TUBING Item I Top 0.00 Bottom j Len 1554 Wt2.601 Grd (in) i (ftKa) (ftKS) (ft) 4.500 in Tubing i 11554.00 1 13CR-80 Gas Lift Mandrels/Valves Stn MD Man Mfr Man Type !1 VIv Mfr I Vlv Type I Latchl V~v I V~v mRoI V~v Run ' I Port 1 I 35311CA-KBMG I ! CA BK BK-50.250 1997.0 3/13/94 2 ! 6200ICA-KBMGI CA BK BK-50.250 1915.0 3/13/94 3 I 7784ICA-KBMG I I CA E BK-50.000 0.0 8/13/92 4 I 87211CA-KBMGI I CA I BK BK-50.250 1855.0 3/13/94 5 / 94401CA-KBMGI i CA E I BK-5 0.000 0.0 8/13/92 6 I 9979ICA-KBMG ! 7 105201CA-KBMGI i CA BK BK-5 0.313 2035.0 3/13/94 8 I 10981tCA-KBMGI I CA E BK-5 0.000 0.0 12/20/93 ___9 113981CA-KBMG I BK BK-50.375 9999.0110/4/94 10 11469 CA-KBMG i CA I OKT BK 0.375 9999.01 9/3/94 Perforations Summary Interval Zone Statu~ FeetI SPFIDate I Type J Comment 11712 - 11722 ZONE 4,GOC O L 101 416/7/93 [APERF 11722- 11723 ZONE4 C | 1 05/29/93 Sqz 11736- 11750 ZONE 4 O ~ 14 46/7/93 RPERF 11750- 11762 ZONE ! 12 0 5/29/93 ,OWC,ZONE OWC,ZONE 3 6 0 5/29/93 11776 - 11782 Stimulations & Treatments Interval Date Type =Comment 11713 - 11782 5/29/93 SQZ ' )~RCO Alaska Inc. Post Office Box 10-0360 :~nchorage, Alaska 99510-0360 Telephone (907) 276-1215 May 25, 1999 Mr. Blair Wondzell Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Re: Flow testing of xvells capable of unassisted flow to the surface. Dear Mr. Wondzell: This letter is in response to your emails on May 25 regarding justification for flow testing of wells capable of unassisted flow to the surface. The following text provides a brief reason for the flow test, as well as arguments why casing damage should be minimal. In all cases, the wells will be tested for a limited duration and then shut-in and secured until approved by your office for some action (via 10-403) or the well is repaired. Tracking of the flow testing duration will be done from the Problem Wells Specialist office. DS 3-~Had a failed packer, which has recently been cement squeezed to regain pressure integrity to the tubing string. It has subsequently been tested to not be capable of unassisted flow to the surface, so an exemption for flowing is not requested. DS 11-25: Has a documented hole below the 5 1/2" x 3 1/2" crossover as per LDL 5/4/98. This single hole needs patching, since the well is capable of unassisted flow to the surface. Casing damage is not expected to be a concern, since the well will require gaslift and the annulus will be gas filled. Flow testing is requested prior to patching since perforations were added and need to be evaluated before a patch is set. Additional perforations or a squeeze may result post flow-test. A patch in the 3 1/2" tubing will not allow further downhole work without the patch being pulled, and subsequently reset before sustained production. The flow period request is for 2-4 weeks. DS 13-33: Has a documented hole in the tubing at a failed non-retrievable patch set over GLM #10 in 1990. The well has been shut-in since 1995, and does not have the reserves to justify a RWO to replace the tubing. The well passed a CMIT T x IA to 3000 psi in 1995. This is a candidate well for a Sundry 10-403 application to continue to flow with a known T x IA communication problem. The request is to flow test for 2-3 weeks to determine if production rates are sufficient to apply for Sundry Notice and/or determine if the well is capable of unassisted flow. The well will require gaslift from a deep valve, so the casing will be protected from production flow by the gas-filled annulus. DS 16-31: SI since 1994 with leaking patch over GLM #10. This is a candidate well for a Sundry 10-403 application to continue to flow with a known T x IA communication problem. The request is to flow test for 2-3 weeks to determine if production rates are sufficient to apply for a Sundry Notice and/or determine if the well is capable of unassisted flow. The well will require gaslift from a deep valve, so the casing will be protected from production flow by the gas-filled annulus. A CMIT T x IA passed to 3000 psi in 1994. DS 18-17: Has documented T x IA communication through a corrosion hole at 4546'. The request is to flow the well after a corrosion probe installation for 4-6 weeks to determine the corrosion rate for an engineering study of the corrosion mechanism in the gravity drainage portion of the field. This well is capable of unassisted flow to the surface. Due to the GOR of the xvell and the single leak point, the annulus is expected to be gas-filled during the study period, which should minimize casing exposure to production fluids. The well will be SI and secured after the study is completed. DS I~-2~.'. Has documented T x IA communication through a corrosion hole at 7244'. The request is to flow the well after a corrosion probe installation for 4-6 weeks for the corrosion mechanism study in the gravity drainage portion of the field. This well is capable of unassisted flow to the surface. Due to the GOR of the well and the single leak point, the annulus is expected to be gas-filled during the study period, which should minimize casing exposure to production fluids. The well will be SI and secured after the study is completed. I hope this letter provides enough explanation for approving a flow-test of these wells for a limited period of time. Please call or email if you need additional information. ,/Jerry Dethlefs ' Problem Well Specialist GeoQuest 500 w. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. Company: 9725 9/15/95 Alaska Oil & Gas Cons Comm Attn: Larry Grant 3001 Porcupine Drive Anchorage, AK 99501 Field: Prudhoe Bay Floppy Well Job # Log Description Date BL RF Sepia DIR MWD Disk D.S. 13-34 ~"~-~ LEAK DETECTION LOG 950829 I 1 D.S. 14-3 '~.~ O ~-~---- CHEMICAL CUTTER RECORD 950831 I 1 D.S. 16-31 C~,Z~ 0'7 ~ STATIC PRESSURE SURVEY 950827 I 1 D.S. 2-3 ") (.~ (~ ~ \ PERF RECORD 9 5 0 8 2 7 I 1 D.S. 5-28 ~ \ ~ \ ~.~, PRODUCTION PROFILE 950830 I 1 D.S. 12-21 ~- ~ (~ ~ CNTG 950828 1 I SIGNED: ~~ Please si Copi~f this transmitill i~ ilerrie at the above address. Thank you. RECEIVED DATE: SEP 151995 Alaska Oil & Gas Cons. Commission Anchorage ARCO Alaska, Inc, po~t O(fleG Box 100360 Anchorage, Alaska 99510-0360 T~.lc. phone 907 276 1215 January 6, 1995 Mr. Blair Wondzell Alask~ Oil and Gas Convemat;on Commission (AC3GCC) 3001 Porcupine Drive Anchorage, AK 99501-3193 RE: Reportable Substance Spills Dear Mr. Wondzell: As required by 20 AAC 24.205 (b), enclosed is the written report relating to the accidental loss of oil that occurred at Drillsite 16, Well 31 on Jt~nt,ary 1, 1995. This incident was verbally reported to the AOGCC on January 1, 1995. if you or your staff need additional information on this event, please call Sheilie Jones or me at 659.5609. Sincerely Chris' Brown Associate Coorcllnator Field Environmental Compliance Enclosure RECEIYEU AHCO Ai;~,<ka, hie. I~ ~ Sub:;idi[~y O1 All,~nticRi~;hli~lcICompnny ~-"l'P;"l'ktTlf/,.~kT/",,'~l &kT"3 /¥"t"~ ~' 7'~ TT f GR-Q -T Location' DS16, Well 31 Date: Time Observed: Materlai end Quantity: January 1, 1995 14:15 hours Crude - 452 gallons Cause: The loss was caused when a coiled tubing parted below the injector assembly as the c0il was being pulled from the well · during a hot oil wash job. The spilled fluid was processed crude oil that was being used as a treatment fluid. The coiled tubing appeared to have failed from excess compression and it was later found that the weight indicator was not reacting properly. From the indi(~ated weight, the operator believed there was less compression on the pipe than was actually occurring. The bending and crimping causecl the tubing to part. Actions Taken' The hot oil pumping unit was shut down immediately and flow ceased within 30 seconds. The well was then secured. Cleanup proceeded .~hc~rtly thereafter and a loader and bucket were used to remove the crude contamination on the pad surface. All oontaminated snow was sent to the Pad $ East Temporary Pit for snowmelting and future injection at the Pad 3 injection wells. Further cleanup will be performed inside the weilhouse, Preventative measures will be to verify that the weight indicator is operating properly prior to running in the well. In addition, research about the relationships belween injector hydraulic operating pressure and coil string weight will be conducted. Lastly, the uae of electronic weight cells are being looked at to supplement or replace the hydraulic ceils for the injeotor, FIELD ARCO ALASKA, INC. ENVIRONMENTAL COMPLIANCE PRUDHOE BAY- PRB 7 , FAX(907) 659-8'228 FAX TRANSMITTAL COVER SHEET TO: Company Location FAX No. DATE'- Confirm No. FROM: R.HOFFMAN/B.ELrJER Director L BARLOWID. HANCON Coordinator 65g-$gg9 M.A. HARDING/M. CARTER Documentation Specialist 659-8270 NOTES: Confirmation No. (9,o?',,) 659.8270 RECEIVED AIaska Oil & Gas Cons. Corr~misSt{ Anchorag~ PAGES TO FOLLOW: (Does Not Include Cover ,gheet) STATE OF ALASKA ALASKA 'L AND GAS CONSERVATION Ct' 'MISSION REPORT SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate Plugging Perforate Pull tubing Alter casing Repair well Other X 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, AK 99510-0360 5. Type of Well Development Exploratory Stratigraphic Service 4. Location of well at surface 1800' SNL, 1282' EWL, Sec. 24, T10N, R15E, UM At top of productive interval 365' NSL, 2794' WEL, Sec. 18, T10N, R16E, UM At effective depth At total depth 446' NSL, 2118' WEL, Sec. 18, T10N, R16E, UM 6. Datum of elevation(DF or KB) 68 RKB 7. Unit or Property Prudhoe Bay Unit 8. Well number 16-31 9. Permit number/approval number 92-75 10. APl number 50 - 029-22280 11. Field/Pool Prudhoe Bay Oil Pool feet 12. Present well condition summary Total depth: measured true vertical 12013 feet 9239 feet Plugs(measured) PBTD @ 11750' M D Effective depth: measured 11750 feet true vertical 9031 feet Junk(measured) Casing Length Size Cemented Measured depth True vertical depth Conductor 111' 20" 450 sx Poleset 111' 111' Sudace 4119' 10-3/4" 1576 cu ft AS III & 400 cu ft Cl G 4187' 3488' Production 11482' 7-5/8" 11550' 8866' Liner 452' 7" 444 cu ft CIG 12002' 9231' Perforation depth' measured 11712-11722'; 11736-11750' RECEIVED true vertical 8999-9007" 9019-9031' JAN - ;5 1995 Tubing (size, grade, and measured depth) 4-1/2", 12.6#, 13 Cr-80 Tbg @ 11554' MD A~, 0il & 6as Cons. C0m~llr~i0fl ' Anch0ra: Packers and SSSV (type and measured depth) Baker SABL-3 Packer @ 11505' MD; Otis HXO SSSV @ 2203' MD 13. Stimulation or cement squeeze summary Intervals treated(measured) See Attached Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Iniection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 129 221 98 - 137 232 101 Tubing Pressure 309 286 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as' Oil ~ Gas Suspended Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title Engineering Supervisor Form 10-404 Rev 06/15/88 SUBMIT IN DUPLICATE cc: KZ, JWP 16-31 TUBING PATCH INSTALLATION DESCRIPTION OF WORK COMPLETED 9/6/94: RIH & set a 2.687" ID Alpha 'Soft Set' Tubing Patch from 11461' to 11482' MD (seal to seal), in the 4-1/2" tubing, across leaking GLM #10. Rigged down. Returned the well to production w/lift gas & obtained a valid welltest. N~ 0it & 6as Cons. Commissio~ /~chora~'~ GeoQue~ EX} W. International Airport Road Anchorage, AK 99618-1199 ATTN: Sherfle NO. 8945 Company: ! Alaska 011 & Gas Cons Comm Attn: Lam/Grant 3001 Porcupine Drive Anchorage, AK 99501 9/21/94 Field: Prudhoe Bay Well / Log Description BL RR Sepia RF Sepia Mylar D.S.4-03 ~\ / I~g PROD LOG (9/4/94) 1' 1 D.$.7-13 --~;--. ~' TUBGOUTREOORD(9/l/94) 1 1 D.S.9-20 *Y~v*7" H I MI INJECT PROFILE (9/5/94) 1 1 D.S. 13-33 ~'~-'- I(~ PROD PROFILE (9/3/94) 1 1 D.S..14-SA c~"Z...-C~ j... PROD PROFILE (9/1/94) 1 1 D.S. 14-24 ~- ~ ~ ! ,. PROD PROFILE (9/3/94) 1 1 iD.S.16-31 ~'2~- 'Z. _~' PATCH SET RECORD (9/6/94) 1 1 S P copy of this transmittal to Sherrie at the above address. Thank you. ~uest ~ W. International Airporl Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. 8889 Company: Alaska Oil & Ga~ Cons Cc)mm , Attn: Larry Grant I 3001 Porcupine Drive Anchorage, AK 99501 8/26/94 Field: Prudhoe Bay Well Log Description BL RR Sepia RF Sepia Mylar ~'~/-:~'~ D.S. 1-09A DUAL BURST TDT (8-7T94) 1" ' 1 ?~-fl~, D.S. 4-05A PERF REOORD (8-9-94) 1 1 ~2,-~? D.S. 7-17 DUAL BURST TDT (8-5-94) 1 1 ~/~T~-~ D.S. 9-5A DUAL BURST TDT (8-7-94) 1 1 ~I-?_...__~.D.S~ 13-11 PROD PROFILE (8-5-94) 1 1 . ~i'3~C~ID.S. 13-28 LEAK DETEOTION (8-5-94) 1 1 ~ ~'~ C~G_D.S. 14-7 ~BRIDGE PLUG RECORD (8-8-94) 1 1 .~.. itc~ D.S. 14-26 !PROD PROFIE (8-6-94) 1 1 ?'3-,,p~- D.S. 14-35 TUBING PUNCHER & POGLM RECORD (8-6-94) I 1 ~!- ! ~ D.S. 16-3 PERF REOORD (8-9-94) 1 1 ?~-~/~ DS. 16-31 LEAK DETEOTION (8-9-94) 1 1 SIGNED: Please sign and return copy of this transmittal to Sherrie at the above address. Thank you. STATE OF ALASKA ALASKA -AND GAS CONSERVATION CC ~IlSSION REPORT L)F SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate X Plugging Pull tubing Alter casing Repair well 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, AK 99510-0360 5. Type of Well Development Exploratory Stratigraphic Service 4. Location of well at surface 1800' SNL, 1282' EWL, sec. 24, T10N, R15E, UM At top of productive interval 365' NSL, 2794' WEL, Sec. 18, T10N, R16E, UM At effective depth At total depth 446' NSL, 2118' WEL, Sec. 18, T10N, R16E, UM jUL 0it & Gas Cons. Perforate 6. Datur~ ~'f [I,¢(,,a~n,(DF or KB) 7. Unit or Prope~y' Prudhoe Bay Unit 8. Well number 16-31 feet 9. Permit number/approval number 92-75 10. APl number 50 - 029-22280 11. Field/Pool Prudhoe Bay Oil Pool 12. Present well condition summary Totaldepth: measured 12013 feet Plugs(measured) PBTD Tag (~1~'~~~ true vertical 9239 feet Effective depth: measured 11782 feet true vertical 9056' feet Junk(measured) Casing Length Size Cemented Measured depth True vertical depth Conductor 111' 20" 450 sx Poleset 111' 111' Surface 4119' 10-3/4" 1576 cu ft AS III & 400 cu ft CIG 4187' 3488' Production 11482' 7-5/8" 11550' 8866' Liner 452' 7" 444 cu ft Gl G 12002' 9231' Perforation depth: measured 11712-11713'; 11713-11722'; 11736-11750' true vertical 8999-9000'; 9000-9007'; 9019-9031' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, 13 Cr-80, Tbg @ 11554' MD Packers and SSSV (type and measured depth) Baker SABL-3 Packer @ 11505' MD; Otis HXO SSSV @ 2203' MD 13. Stimulation or cement squeeze summary Intervals treated(measured) See Attached Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation Representative Daily Average Production or In!ection Data OiI-Bbl Gas-Mcr Water-Bbl Casing Pressure 12 211 13 572 213 1392 Tubing Pressure 304 348 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil x, Gas..._ Suspended Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed /~ ~), ~~rk~-~u~y Title Form 10-404 Rev 06/15/88 1135/10 KRF cc: JED, JWP Engineering Supervisor Date-//~//f~- SUBMIT IN DUPLICATE 16-31 DESCRIPTION OF WORK COMPLETED ROPE TREATMENT & FRACTURE TREATMENT OF ZONE 4 2/22/94: RIH & tagged PBTD at 11753' MD. 2/25/94: RIH & set a Shear Disk at 11512' MD, in preparation for a ROPE Treatment. 2/26 MIRU up on /94: & PT equipment to 8000 psi, then pumped 66 bbls Slickwater w/friction reducer, & pressured the Shear Disk to perform a ROPE Treatment of the perforations located at: 11712 - 11722' MD (Z4) 11736 - 11750' MD (Z4) Ref. Log: BHCS 8/9/92. Shear disk ruptured at 6300 psi. Retrieved the ruptured Shear Disk. Rigged down. 2/28/94 - 3/1/94: MIRU CTU & PT equipment. RIH w/CT & pumped 3 bbls of Gelled Sand Slurry, containing 600 lbs of 20/40 mesh sand, to spot a sand plug over the lower perforation interval (listed above). POOH w/CT. Rigged down. 3/2/94: RIH & tagged the top of the sand plug at 11750' MD, then made dump bailer runs to dump additional 20/40 mesh sand, to raise the sand plug top to 11734' MD. POOH w/bailer. Rigged down. 3/7/94: MIRU & PT equipment to 9000 psi. Pumped a Hydraulic Fracture Treatment using 16/20 mesh proppant, through the top perforation interval located above the sand plug (listed above). Pumped 300 bbls 20# Pre Pad Gel @ 30 bpm, followed by Shutdown. ISIP @ 2380. Resumed pumping Data Frac consisting of 124 bbls 30# Crosslinked Gel @ 25 bpm, followed by 40 bbls 20# Flush @ 5 bpm, followed by 137 bbls 20# Flush @ 30 bpm, followed by Shutdown. ISIP @ 2400 psi. Resumed pumping the Fracture Treatment consisting of 40 bbls 30# Crosslinked Gelled Pad @ 30 bpm, followed by 37 bbls Slurry w/proppant concentrations @ 1 - 8 ppg, followed by 177 bbls Flush, followed by Shutdown. Placed a total of 8,000 lbs of proppant into the formation. Rigged down. 3/10/94: RIH w/CT & performed a proppant & sand plug fill cleanout down to 11782' MD. Returned well to production w/gas lift & obtained a valid welltest. JUL ] 1 994 (jii& Gas Cons. O0mmissi0n Anch0ra~ ARCO Alaska, Inc. P.O.Box 100360 Anchorage, ~ 99510 DATE: 10-8-93 4-29 ~'42' ~-1 6-17 /~- I~? 6-21 -22A ct'~- ~7 ~-22A 7~-~-7-8 7~,-7___~_.. **....9-9 ~ ~1-25 ~{~ 11-28 ~3-1 ~4-24 s-18 e~15-30 ~~ 16-7 qa-?5 16-31 ~17-21 8-29-93 8-29-93 8-29-93 9-7-93 9-7-93 9-3-93 9-8-93 9-3-93 9-4-93 9-4-93 9-10-93 8-31-93 8-31-93 9-2-93 9-10-93 8-29-93 9-5-93 9-12-93 8-30-93 9-10-93 9-3-93 9-5-93 9-7-93 9-4-93 Prod Profile/~l~~9 Run 1, 5" Prod Proflle/~aa(~~ Run 1, 5" Prod Profile {~l~a~?~R~Rt~m~J~ 5" ~ ~Sch ~j ~offie & S~flc/~,~r'~~ 5" ~~Sch ~j ~offie · S~c]~'o}~~~ 5''~°-t~ch ~ml B~t T~P R n L 5" ~- Sch ~j ~offie & Static I~l~~'' s?~-~'~ Sch ~ B~t T~P R~m 1, 5"~-~o Sch Perf Record Perf Record Production/~a~l~l~e USIT (Cement) Color USIT (Corrosion) Color D~ml Burst TDTP Prod Proffie/Se,~[~ Prod Profilet~tT~~ CNL Leak Detectlhe-~l~ Perf Record GR/CCL (TCP Tie-In) Perf Record Please sign and return the attached copy as receipt of data. RECEIVED BY___~~_ - . '~ Have A Nice Dayi : Sonya Wallace ATO-1529 # CENTRAL FILES # CHEVRON # CLINT CHAPMAN # EXXON # MOBIL Run 1, 5" Sch Run 1, 5" Sch Run 1, 1"&5" ~ Schg-~ Rim 1, 5''~ lz~%--Sch Run 1, 5"lz~t~g Sch R~ 1, 5" ~~-- Sch~%~ R~m 1, 5'~ Sch Rim 1, 5" R~ 1, 5" Sch Rim 2, 5" Sch R~ 1, 2" t ~0-~5 Sch R~ 1, 5" Sch R~ 1, 5" R~ 1, 1"&5" R!!n 1, l"&5" Sch R~ 1, 5" Sch Trans# 93109--ff--~ # BPX # STATE OF ALASKA The correct top logged Interval for this log is 12,900 feet. The correct top logged interval for this log is 10,400 feet. STATE OF ALASKA' ALASKA ~'-'"' AND GAS CONSERVATION CC ~'".,IlSSION REPORT uF SUNDRY WELL OPEHATIONS 1. Operations performed: Operation shutdown , Stimulate .. X, Plugging Perforate ,, X Pull tubing , Alter casing, Repair well Other. X 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, AK 99510-0360 4. Location of well at surface 1800' SNL, 1282' EWL, Sec. 24, T1 ON, R15E, UM At top of productive interval 365' NSL, 2794' WEL, Sec. 18, T10N, R16E, UM At effective depth At total depth 446' NSL, 2118' WEL, Sec. 18, T10N, R16E, UM 5. Type of Well Development ,, X, Exploratory .... Stratigraphic Service ,, ~,lask~ Oil & ~as O~ns, Anchorage 6. Datum of elevation(DF or KB) 68 RKB 7. Unit or Property Prudhoe Bay Unit 8. Well number 16-31 9. Permit number/approval number 92-75 10. APl number 50 - 029-22280 11. Field/Pool Prudhoe Bay Oil Pool feet 12. Present well condition summary Total depth: measured true vertical 12013 feet 9239 feet Effective depth: measured 11763 feet true vertical 9041 feet Plugs(measured) PBTD Tag @ 11_763' MD (6/7/93) OR/SINAI. Junk(measured) Casing Length Size Cemented Measured depth True vertical deptl' Conductor 111' 20" 450 sx Poleset 111' 111' Surface 4119' 10-3/4" 1576 cuff AS III & 400 cuft Cl G 4187' 3488' Production 11482' 7-5/8" 11550' 8866' Liner 452' 7" 444 cuft CIG 12002' 9231' Perforation depth: measured 11712-11713'; 11713-11722'; 11736-11750' true vertical 8999-9000'; 9000-9007'; 9019-9031' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, 13 Cr-80, Tbg @ 11554' MD Packers and SSSV (type and measured depth) Baker SABL-3 Packer @ 11505' MD; Otis HXO SSSV @ 2203' MD 13. Stimulation or cement squeeze summary Intervals treated(measured) See attached. Treatment description including volumes used and final pressure 14. Representative Daily Averaqe Production or Injection Dat~, OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Prior to well operation ...... Subsequent to operation 10 ~'~ 97 95 - Tubing Pressure -. 274 15. Attachments · Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil..x Gas..._ Suspended=__ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title Engineering Supervisor Form 10-404 Rev 06/15/88 SUBMIT IN DUPLICATE 16-31 DESCRIPTION OF WORK COMPLETED ACID STIMULATION W/SST TOOL & CTU CEMENT SQUEEZE FOR WATER SHUTOFF 3/24/93: An Acid Stimulation Treatment using an SST Tool was performed as follows: MIRU CT & PT equipment to 4000 psi. Loaded the wellbore w/1% NH4Cl Water & Dead Crude, then RIH w/CT mounted SST Tool & made 3 sets to treat the upper 3 perforation intervals located at: 11713 - 11723' MD (Z4) 11736 - 11756' MD (Z4) 11756 - 11762' MD (Z3) Ref. Log: BHCS 8/9/92. Note: the lower perforation interval at 11776' - 11782' MD (Z3) was not treated. Inflated SST elements to make first tool set at 11713 - 11723' MD, then proceeded pumping Stage #1 consisting of 40 bbls 1% NH4Cl Water @ 0.85 bpm, followed by 35000 scf Nitrogen @ 1000 scf/min, followed by 20 bbls 1% NH4Cl Water Preflush @ 0.5 bpm, followed by 40 bbls 15% HCL w/10% Musol @ 0.8 bpm, followed by 20 bbls 9% HCL - 1.5% HF @ 1.3 bpm, followed by 88 bbls 1% NH4Cl Water Displacement @ 1.3 bpm. Deflated SST Tool elements to relocate tool. Inflated SST elements to make second tool set at 11739 - 11749' MD, then proceeded pumping Stage #2 consisting of 40 bbls 1% NH4CI Water @ 1.3 bpm, follwed by 35000 scf Nitrogen @ 1500 scf/min, followed by 20 bbls 1% NH4Cl Water Preflush @ 0.8 bpm, followed by 40 bbls 15% HCL w/10% Musol @ 0.8 bpm, followed by 13 bbls 9% HCL - 1.5% HF @ 1.2 bpm, followed by 88 bbls 1% NH4Cl Water Displacement @ 1.2 bpm. Deflated SST Tool elements to relocate tool. Inflated SST elements to make third tool set at 11749 - 11759' MD, then proceeded pumping Stage #3 consisting of 40 bbls 1% NH4Cl Water @ 0.8 bpm, follwed by 35000 scf Nitrogen @ 1200 scf/min, followed by 20 bbls 1% NH4Cl Water Preflush @ 0.6 bpm, followed by 30 bbls 15% HCL w/10% Musol @ 1.2 bpm, followed by 15 bbls 9% HCL - 1.5% HF @ 1.2 bpm, followed by 88 bbls 1% NH4CI Water Displacement @ 1.2 bpm. Deflated SST Tool. POOH w/CT & SST Tool. RD. 3~27~93: Pumped an ESL Scale Inhibition Treatment. 5/29/93: Performed a CTU Cement Squeeze for Water Shutoff & Plugback of the lower wellbore as follows: MIRU & PT equipment to 4000 psi. Loaded the wellbore w/Hot Seawater, then RIH w/CT & cement squeezed all four open perforation intervals (listed above). Pumped 35 bbls Latex Acid Resistive Cement & placed a total of 5 bbls of cement behind pipe. Briefly attained a max squeeze pressure of 3500 psi, but pressure broke back to 2600 psi, then held a final squeeze pressure of 2800 psi for 1 hour. Contaminated cement w/biozan & jetted cement from wellbore. Left a cement plug in the wellbore below 11760' MD. POOH w/CT. Rigged down. 6~7/93: Reperforated: 11713- 11722' MD (Z4) Ref. Log-BHCS 8/9/92. 11736 - 11750' MD (Z4) 11712 - 11713' MD (Z4) Rigged down. Added perforations: Tagged cement plug top at 11763' MD. Ref. Log: BHCS 8/9/92. J U L - 2 t993 Alaska OJJ & Gas Cons. Commissic Anchorage Placed well on production w/gaslift & obtained a valid welltest. Additional perforating is pending. STATE OF ALASKA .... ALASKA""-"~AND GAS CONSERVATION CE "/IISSION REPORT SUNDRY WELL OPERATIONS 1. Operations performed' Operation shutdown Stimulate Plugging Perforate X Pull [ubing Alter casing,,, Repair well, Other ..... 6. Datum of elevation(DF or KB) f x 68' RKB 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, AK 99510-0360 4. Location of well at surface 1800' SNL, 1282' EWL, Sec. 24, T10N, R15E, UM At top of productive interval 365' NSL, 2794' WEL, Sec. 18, T10N, R16E, UM At effective depth At total depth 446' NSL, 2118' WEL, Sec. 18, T10N, R16E, UM 5. Type of Well Development Exploratory Stratigraphic Service I ECEIVED JuN - t99 Alaska Oil & Gas Cons. C0mmissi0 7. Unit or Property Prudhoe Bay Unit 8. Well number 16-31 9. Permit number/approval number 92-75 10. APl number 50 - 029-22280 ~11. Field/Pool Prudhoe Bay Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Size Conductor 111' 20" Surface 4156' 10-3/4" Production 11528' 7-5/8" Liner 452' 7" 12013 feet Plugs(measured) 9239 feet 11915 feet 9157 feet Junk(measured) Cemented 450 sx Poleset 1576 cu ft AS 111/406 cu ft CL 'G' 444 cu ft CL 'G' Measured depth True verticaldepth 111' 111' 4187' 3489' 11552' 8857' 11550'-12002' 8856-9230' Perforation depth: measured 11713-11723';11736-11762';11776-11782' true vertical 8989-8998';9008-9030';9042-9047' Tubing (size, grade, and measured depth) 4-1/2",12.6#,13CR-80, TT W/LEG @ 11554' MD Packers and SSSV (type and measured depth) 4-1/2" Baker SABL-3 pkr @ 11505' MD;4-1/2" Oits HXO SSSV @ 2203' MD 13. Stimulation or cement squeeze summary Intervals treated(measured) Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Iniection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 0 0 0 - 2000 j 1600 500 Tubing Pressure 0 400 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas Suspended Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title FS-2 Senior Engineer Form 10-404 Rev 06/15/88 Date SUBMIT IN DUPLICATE DAILY REPORT OF WELL OP~- ATIONS DS 16-31 Perforating Operations' ARCO Alaska, Inc. perforated DS 16-31 at selected intervals in the Sadlerochit Sand of the Prudhoe Bay Unit on 8/25/92. The intervals perforated were the following: 11713'- 11723', 11736'- 11756', 11756'-11762' and 11776'-11782' MD (Reference Log' SWS-BHCS dated 8/9/92). Completion fluids were in the wellbore during perforating operations. All wireline work was done through a 5000 psi WP BOP/Lubricator tested to 1.2 times the maximum expected surface pressure. A short summary of the work is given below: Began perforating operations on 8/25/92. RU perforating unit, pressure tested BOP's and lubricator to 3000 psi, okay. RIH, opened well to flow and perforated 11776'-11782' MD at 1 SPF, Logged up and perforated 11756'-11762' MD at 1 SPF, SI well, POOH and confirmed all shots fired. RIH and perforated 11736'- 11756' MD at 4 SPF, POOH and confirmed all shots fired. RIH and perforated 11713'-11723' MD at 4 SPF, POOH and confirmed all shots fired. (ref: SWS-BHCS of 8/9/92). Rigged down and secured well. RECEIVED alaska 0~1 & Gas Co.s. Commission AnChorage RDC: 6/2/93 ARCO Alaska, Inc. P.O.Box 100360 Anchorage, Alaska 99510 DATE: 4-30-93 REFERENCE: ARCO ~]~- ~--1-9 4-16-93 1-2o1~ )°cq' 4-11-93 '7~---~ ---- 1-16 4-13-93 ~-- aT.~ 4-9-93 4-10-93 7~- ~-t -- 3.10 4-1-93 9-5A93-~ 4-1-93 ~28A _ 4-4-93 Inflatable IBP Setting Run 1, 5" Seh Dual Burst TDTP (Borax) Run 1, 5" Sch Production Run 1, 5" Sch Static Press/Temp Run 1, 5" Sch Per/Recard Run 1, 5" Seh Tubing Cutter Run 1, 5" Atlas Production Run 1, 2'&5" Sch Static Pressure/Temp Run 1, 5" Seh PerfRecord l~_m 1, 5" Sch SHL/GR/CCL l~_m 1, 5" Atlas PFC/CC& (packer Setting) Run 1, 5" Atlas Dual Burst TDTP/Temp (Borax) Run 1, 5" Sch Production Run 1, 5" Sch Dual Burst TDTP (Borax) Run 1, 5" Sch Dual Burst TDTP (Borax) Run 1, 5" Sch Production Run 1, 5" Sch SHL/GR/CCL Run 1, 5" Atlas SaL/GR/CCL l~m 1, 5" Arias S~./~~ Run 1, 5" Arias Please sign and return tl~ attached copy a~ receipt of data. RECEIVED BY Have A Nice Day! Sonya WallaCe ATO-1529 # CENTRAL FILES # CHEVRON D&M # CLINT CHAPMAN # EXXON MARATHON # MOBIL RECEIVED APPROVED "/" MAy 0 6 1993 9305~ - # PHILLIPS PB WELL FILES R&D # BPX # STATE OF ALASKA TEXACO ARCO Alaska. Inc. P.O.Box 100360 Anchorage, Alaska 99510 DATE: 3-22-93 REFERENCE: ARCO CASED HOLE FINALS /~1-4 12-17-92 Prod Profile Run ~.(~_~2-11 12-18-92 InJ Profile Run 12-29~92 Prod Profile Run ~~l~4--~~8'9~ 12-28-92 Prod Profile Run 12-264)2 Leak Detect Run 1-4-93 Leak Detect/Noise/Temp Run 11-3-92 Prod Profile Run 6-20 12-18-92 Prod Profile Run Ot~ ~16-31~ 11-3-92 P~_~_mp-In Flowmeter Run Please sign and return the attached.co~_y_ as receipt of data. RECEIVED~' BY_~~ ~ Have A Nice Day! ~/.,~ Sonya Wallace APPR OVED__~z~~__ ATO-1529 Trans# 93040 Camco C.~__mco C~_mco Camco Camco Camco Camco Camco Camco # CENTRAL FILES # CHEVRON D&M # LUCILLE JOHNSTON # EXXON MARATHON # MOBIL # PI4~.I.rPS PB WELL FILES R&D # BPX # STATE OF ALASKA TEXACO ARCO Aluh, Inc. P.O.Box 1OO36O Anchorage, Alatlm 99510 DATE: 13-18.02 REFERENCE: ARCO CA~ED HOLE FINAL~ 10-11.03 10-23.02 10-2-02 11.0.02 11-12-02 10-12.02 11-7.02 IO.O.O2 lo.0-03 11-6.02 11-13.02 1O.3.02 10-18.02 11-8-92 lo.O.O2 lo. 11-02 1-SST fo ~/° 2-18 3-2o t3-23 ~3-30 (S-SS 3-33 s-10 ~?-~/~c 10-8-02 6.o 10-24.02 6.18 11-18.02 7-23J~-,/~/~' 8-0-01 o-28 J ~/-~? 0-24.02 a/-/~ 1,.3A ?/-/-~.~ 11-11-02 12-8B . 10-13.02 12-20 ~/-~/1O.4-02 13-20 ~a-/.~ 11-16-02 -~ X~2 0-25.02 '~ X~2 1~8.02 ~ - ~ ~ ~o-3~o2 1&14 ~/~2~ 10-22.02 1~2~-~/~ 10-22.02 ~_ ~ ~1~0 0-27.02 ~0 lo.1~02 1~3~_ ~ 10-12.02 o-28 J~"-2~ o-24.02 ~o.2o 2-28.02 o-2o 2-28-o2 o-o2 AGI-I /~J-/~/ 12-6.02 Leak Detect (flexotakJ Run 1. ~'&10' Perf Record Run 1. ~ Perf Record Run 1. F Collar (IBP) Run I. ~' InJ Profile (Step Rate) Run 1. Y Leak Detect(flexstsk) Run 1, F Collar (IBP) Run 1, ~* GR/Collar Run I, ~' Prod Profile Run 1, I~' CoUar (IBP) Run 1, ~ Prod Profile Run 1, ~ Parr Record Run 1, ~' Leak Detect (flezstsk} Run 1, lr'~5" Prod Profile Run 1, ~' Inj Profile/PITS/Collar Run 1, ~" Prod Profile Run 1, ~' Perf Record Run 1, ~ Perf Record Run 1, ~ PIT8 Run 1, ~ TMD Run 1, ~' Perf Record Run 1, ~' l~rf Record ~ !, ~' PSG/GR (Computed Results) Run 1, ~ PSG/GR ~ Run 1, ~ Leak Detect (flexstsk} Run 1, ~ Set IBP Run 1, ~' Perf Record Run 1, ~' Collar Run 1, ~' Perf Record Run 1, ~' InJ Proffie/PIT8 ~ Run 1, ~' Perf Record ~ Run 1, ~" Prod Profile (flezstsk) Run 1, ~ Perf Record Run 1, ~ Perf Record Run 1, ~" Perf Record / Run 1, ~ Prod Profile (flexstak) ~ Run 1, ~' InJ Profile/Temp ./ Run 1, ~' Perf Recital .~ Run 1, [P GR/CoUar / Run 1, ~ 8BL/GR/CCL ~' Run 1, ~ Please sifn and return the attached copy mo receipt of data. RECEIVED B·_~~~__~ "'"*"'" RECEIVED ATO-1539 JCEaTRALr~ 5 0 1992 Aia~ka Oil & Gas Con~. Comai$~[O. ll A~-~choraga Camco HL8 HIS Camco Camco Camco Camco Camco Camco Camco Camco HIS Camco Camco Camco Camco HIS HIS Camco HIS HIS HIS HIS HIS Camco Camco HIS Camco HIS Camco HIS Camco HIS HIS HIS Camco Camco HIS Camco ARCO Ahska, Inc. P.O.Box 100360 Anchorage, Alaska 99510 DATE: 10-16-92 REFERF2CI/:: ,aRCO MtGNETIC TAPE(S) WITH nISTmGs Please sign and return ~e attached co~py as receipt of data~ RECEII/'ED B Have A Nice I)ayl Sonya Wallace APPR OVED.ff~ ATO-1529 Trans# 9223~'~"---- Sch mES (Ch9 CHEVRON D&M # BOB OCANAS (OH/GCT) # EXXON ~~ON MO~ # pHrLL~ PB WELL ~ R&D # BPX # STATE OF ALASKA TEXACO RECEIVED NOV 2 c~ 1992 Alaska Oil & (hs Cons. Commission Anchorage ARCO Alaska. Inc. P.O.Boz 100360 Anchorage, .~l..k. 99510 DATE: 10-9-92 REFERENCE: ARCO DIRECTIONAL DATA BI-/e? 7-4A ~2 "'~'2 8-5-82 11-78T 8-4-2 15-30 ~-~f 9-2-92 15-31 ~_~o~ 9-27-92 16-31 ~7~' 8-11-92 17-16 ~-f/ 9-30-92 Magnetic Mttlti-Shot 6urvey Job#AK-El-20056 MWD Directional Survey Job#NA Mwd Directional Survey Job#AKMM920821 MWD Directional Survey Job#AK-MW-20075 MWD Directional Survey Job#lll7 MWD Directional Survey Job#NA Finder Survey Job#45FG0992027 Please sign and return the attached copy as receipt of data. RE CEIVED BY_~_~ Have A Nice Dayi Sonya Wallace ATO-1529 APPROVED --~~___ Trans# 92230 Sperry Sch 8perry Sperry Teleco Teleco SDII CENTRAL FILES CHEVRON D&M # EXTENSION EXPLORATION # EXXON MARATHON MOBIL # ST. OF ~-_ (2 cOPIES] RECEIVED NOV 3 7 1992 Alask~ 0il & Gas Cons. Commission Anchorage : STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION ~ Wl:I ! COMP! ETLON OR RECOMP LETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL IXI GAS [] SUSPENDED I-I ABANDONED r-I SERVICE [] 2. Name of Operator 7. Permit Number ARCO Alaska, Inc. 92-75 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 50- 029-22280 4. Location of well at surface ........: 9. Unit or Lease Name 1800' SNL, 1282' EWL, SEC. 24, TION, R15E t~'~ ............ LOCATK31~ i Prudhoe Bay Unit ~ ,~;Oi',.,,?~LZ.~:~-~-,~ ~1~I 10. Well Number At Top Producing Interval ~ ...... ¢ ~-~,.:', DS 16-31 ~ ' 4~, ~~ 11. Field and Pool 365'NSL, 2794'WEL, SEC. 18, TlON, R16£[ ~F!~ ~ At Total Depth ' ' Prudhoe Bay Field/Prudhoe Bay Pool 446' NSL, 2118' WEL, SEC. 18, TION, R16E ~£:'7~ .... ~ 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. KBE = 68' I ADL 28346 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offshore 116. No. of Completions 7/28/92 8/10/92 8/25/92I N/A feet MSL I One 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD] 19. Directional Survey FO. Depth where SSSV set Fl. Thickness of Permafrost 12013'MD/9239'TVD 11915'MD/9157'TVD YES [] N3 []! 2204feet MD ! 1900' (Approx.) 22. Type Electric or Other Logs Run D IL/S L S/LD T/GR/AMS 23. CASING, LINER AND CEMENTING ~ SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BO'I-rOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" Cond. H-40 Surface 111' 30" 450 sx Poleset 10-3/4" 45.5# NT-80 31' 4187' 13-1/2" 1576cu fl AS Ill& 406cu fl Class "G" 7-5/8" 29.7# L-80 24' 11552' 9-7/8" 7" 26# 13CR 12552' 12002' 9-7/8" 444 cu fl 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) Gun Diameter3-3/8" 4-1/2", 12.6#, 11554' 11505' MD TVD 11713'-11723' 9000'-9008' 4 spf 11736'-11756' 9019'-9036' 4 spf 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11756'-11762' 9036'-9041' 1 spf DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11776'-11782' 9052'-9057' I spf 27. PRODUCTION TEST Date First Production IMethod of Operation (Flowing, gas lift, etc.) 9/1/92 I Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SlZE IGAS-OIL RATIO TEST PERIOD I1~ I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE I~ 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence of oil, gas or water. Submit core chips. RECEIVED OCT - 6 1992 ~a ~ ~Ojl & Gas Cons. ~ummissio[~ '., 'Anchorage Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE Submit in duplicate 29. 30. GEOLOGIC MARKERS F~RMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity. MEAS. DEP'I'H TRUE VERT. DEPTH GOR, and time of each phase. Top Sadlerochit 11713' 9000' Zone 3 11758' 9037' Zone 2 11793' 9066' Anchorage 31, LIST OF A'I-FACHMENTS ,ru c-- Signed ' Title Drillira_ Ena_ineer Suoervisor Dato INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Form 10-407 BP/AAI SHARED SERVICE DAILY OPERATIONS PAGE: 1 WELL: DS 16-31 BOROUGH: NORTH SLOPE UNIT: PRUDHOE BAY FIELD: PRUDHOE BAY LEASE: API: 50- PERMIT: APPROVAL: ACCEPT: 07/28/92 08:07 SPUD: 07/28/92 04:07 RELEASE: 08/13/92 03:08 OPERATION: DRLG RIG: NABORS 18E WO/C RIG: NABORS 18E 07/29/92 (2) TD: 800'( 0) 07/30/92 ( 3) TD: 1840' (1040) DRLG SURF HOLE MW: 9.0 VIS:225 MOVE RIG. RIG ACCEPT 7-28-92 08:00 HRS. MIX MUD, NU & TEST DIVERTER. BUILD BHA, CIRC SAME. DRILL TO 800. DRILLING MW: 9.0 VIS:250 DRILL TO 1498. POH, CNG OUT BIT & HTR, RIH. DRIL TO 1840. 07/31/92 ( 4) TD: 2667' ( 827) 08/01/92 (5) TD: 4203'(1536) 08/02/92 (6) TD: 4203' ( 0) 08/03/92 (7) TD: 6195' (1992) 08/04/92 (8) TD: 7100' ( 905) RIH W/NEW BIT & HTR MW: 9.2 VIS:240 DRILLING, POH FOR BIT. PU DYNADRIL & RIH. DRILL TO 2667. TH @ 2217. PUMP OUT OF HOLE TO 2427. POH, HTR FAILURE. RIH W/BHA #5 & HTR. POH F/RUNNING SURF CSG MW: 9.7 VIS:250 RIH, WASH & REAM TIGHT HOLE. DRILL TO 3328. SHORT TRIP, DRILL TO 4203. CBU & COND MUD. POH F/RUNNING SURF CSG. RIH W/BHA#5 MW: 9.1 VIS: 31 POH, LD BHA. RU & RIH W/10-3/4" CSG. CIRC & COND MUD FOR CMT JOB. BO LND JT, RD CSG TOOLS, ND. RU PERF TOP JOB. MU SPEED HEAD & NU BOPE. TEST. RIH W/BHA #5. DRILLING MW: 9.4 VIS: 42 RIH TO DP, RIH & TAGGED FLOAT COLLAR. TEST CSG. DRILG FLOAT EQUIP & CMT TO 4175. TEST CSG. DRLG TO 4215. PERFORM FIT TEST. DRLG TO 6195. DRLG. MW: 9.4 VIS: 40 POOH FOR BIT. RIH W/ BIT. DRLG F/ 6195'-7100' 08/05/92 (9) TD: 7727' ( 627) 08/06/92 (10) TD: 8920'(1193) DRLG 9-7/8" HOLE MW: 9.5 VIS: 43 DRIL TO 7727. DROP SURV & PUMP PILL. POH, RIH W/BIT #8. REAM TIGHT HOLE TO BTTM. DRILLING DRILLING TO 8920. MW: 9.6 VIS: 39 08/07/92 (11) TD:10027' (1107) DRLG. MW: 9.6 VIS: 40 DRLG F/ 8920'-8982' POOH. CHANGE BIT. RIH. REAM F/ 8908'-8982'. DRLG ~/ 8982'-9958'. SHORT TRIP TO 8818' DRLG F/ 9958'-10027' RECEIVED OCT - G 1992.. Oil & Gas Cons. t~uiin'-nission Anchorage WELL : DS 16-31 OPERATION: RIG : NABORS 18E PAGE: 2 08/08/92 (12) TD:10940' ( 913) DRILLING DRILLING TO 10940. MW: 9.6 VIS: 40 08/09/92 (13) TD:11977' (1037) CBU FOR LOGGING TRIP MW: 9.7 VIS: 38 DRILL TO 11977. CBU, SHORT TRIP. CBU & COND MUD FOR LOGGING. 08/10/92 (14) TD:12013'( 36) 08/11/92 (15) TD:12013' ( 0) 08/12/92 (16) TD: 12013 PB: 11915 08/13/92 (17) TD:12013 PB:l1915 08/14/92 (18) TD:12013 PB:l1915 POH & LD DP FOR CSG MW: 9.7 VIS: 37 PUMP HO/LO SWEEP, CBU. POH, LD BHA, MTR, MWD. RU & RUN ONE SUITE OF LOG. PU BHA, RIH TO 11940. WASH & REAM TO TD @ 11977. DRILL TO 12013. PUMP PILL. POH & LD DP. RIH W/7-5/8" CSG MW:10.1 VIS: 39 WORKED TIGHT HOLE, RAN BACK TO BTTM, CIRC & COND MUD. PUMP PILL. POH, CHG RAMS, INSTL BOWEL PROTECTOR. RU CSG TOOLS. RIH W/7-5/8" CSG. RIH W/4-1/2" CR TBG MW: 8.5 Seawater RIH WITH 7-5/8" CSG. MU CIRC HEAD & CIRC. RU CMT HEAD & PRESS TEST LINES. PUMP MUD, CMT, TAIL SLURRY. DIPLC W/SW. RD & PULL LND JT & CLEAR FLOOR. INSTL PACKOFF & TEST. RU & RIH. CHG RAMS, RU & RIH WITH 4-1/2" 13 CR TBG. CIRC W/CLEAN SEAWATER MW: 8.5 Seawater RIH W/4-1/2" CR TBG. RU SSSV & TEST CONTROL LINES. RIH. RU TBG HGR & LAND SAME. SET BPV & INSTL 5" RAMS. ND BOPS & FLOW LINE. NU TREE. SET TEST PLUG & TEST TREE. RU TO DISPL W/SEAWATER. TURNKEY MOVE TO DS16-30 MW: 8.5 Seawater REV CIRC W/SEAWATER. SET PKR & TEST. TEST TBG ANNULUS. SET BPV. CLEAN PITS, PREP FOR RIG MOVE. RIG RELEASED 8-13-92 @ 1500 HRS. SIGNATURE: (drilling superintendent) DATE: RECEIVED OCT "- 6 ]992 Oil & Gas Cons. uumrnission Anchorage MICROFILMED PRUDHOE BAY DRILLING DS 16-31 RECEIVED OCT -- 6 1992 Oil & Gas Cons. rJommissiol~ GREAT LAND DIRECTIONAL DRILLING, INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY PRUDHOE BAY DRILING COMPANY DS 16-31 WELL NAME PRUDHOE BAY LOCATION AL792D34 MWD 08/13/92 JOB NUMBER DON LEJEUNE TYPE SURVEY DIRECTIONAL SUPERVISOR NAME TITLE 00.0 FT SIGNATURE 11900.0 FT DEPTH INTERVAL FROM TO 07/27/92 08/10/92 DATE SURVEY TAKEN FROM TO THIS IS A RECORD OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. ........ 1 ....... 1 1 1 } ..... 1 1 1 ........ 1 ....... 1 .......... ~l GREAT LAND DIRECTIONAL DRILLING, Client · · · · · · Field ..... : Well · Section at: Engineer..: PRUDHOE BAY DRILLING PRUDHOE BAY DS 16-31 N,73.27,E DON LEJEUNE INC. S MEAS INCLN C DEPTH ANGLE 3 415 0.40 3 500 1.60 3 593 4.80 3 685 8.50 3 777 11.80 VERTICAL-DEPTHS BKB SUB-SEA SECTION DISTNCE 415.0 384.9 -1.4 500.0 469.9 -0.6 592.8 562.7 4.5 684.2 654.1 15.1 774.7 744.6 31.3 3 869 14.60 864.3 834.2 3 962 17.80 953.6 923.5 3 1054 20.50 1040.5 1010.4 3 1146 21.50 1126.4 1096.3 3 1239 23.70 1212.3 1182.2 3 1328 24.40 1293.5 1263.4 3 1423 27.20 1379.1 1349.0 3 1517 27.70 1462.5 1432.4 3 1603 28.70 1538.3 1508.2 3 1706 30.40 1627.9 1597.8 3 1801 33.80 1708.3 1678.2 3 1927 36.20 1811.5 1781.4 3 2022 35.40 1888.6 1858.5 3 2115 35.30 1964.4 1934.3 3 2211 39.00 2040.9 2010.8 3 2305 40.50 2113.2 2083.1 ^Survey Codes: 3/MWD (GLDD (c) 92 DS1631 B1.30 11:20 AM 2) RECORD OF SURVEY DIRECTION BEARING 08/13/92 Computation...: MINIMUM CURVATURE Survey Date...: 08/10/92 KB Elevation..: 30.10 ft Reference ..... : AL792D34/AFE#4J0173 Magnetic Dcln.: 30.16 E RELATIVE-COORDINATES FROM-WELL-HEAD S 83.40 W 0.2 S 1.4 W S 87.80 E 0.2 S 0.5 W N 80.90 E 0.3 N 4.6 E N 74.90 E 2.7 N 15.0 E N 76.70 E 6.6 N 30.7 E 52.3 N 73.50 E 12.1 N 51.0 E 78.2 N 73.20 E 19.5 N 75.8 E 108.4 N 75.60 E 27.6 N 104.9 E 141.3 N 79.10 E 34.8 N 137.0 E 176.9 N 74.20 E 43.1 N 171.8 E N 73.50 E 53.2 N 206.6 E N 72.10 E 65.5 N 246.1 E N 73.90 E 78.1 N 287.5 E N 74.90 E 89.0 N 326.7 E N 73.90 E 102.7 N 375.6 E 213.2 254.5 297.8 338.5 389.3 439.7 N 73.20 E 117.0 N 424.0 E 512.0 N 73.20 E 137.9 N 493.2 E 567.6 N 74.20 E 153.5 N 546.5 E 621.4 N 74.20 E 168.2 N 598.3 E 679.3 N 74.60 E 183.7 N 654.1 E 739.4 N 76.30 E 198.8 N 712.3 E CLOSURE DL DISTNCE BEARING /100 1.4 S 83.40 W 0.10 0.6 S 65.81 W 2.35 4.6 N 86.02 E 3.49 15.2 N 79.77 E 4.09 31.4 N 77.80 E 3.60 52.4 N 76.65 E 3.14 78.3 N 75.55 E 3.44 108.5 N 75.25 E 3.06 141.4 N 75.75 E 1.74 177.1 N 75.91 E 3.11 213.4 N 75.56 E 0.85 254.7 N 75.11 E 3.02 298.0 N 74.80 E 1.03 338.6 N 74.75 E 1.29 389.4 N 74.71 E 1.72 439.8 N 74.57 E 3.60 512.1 N 74.38 E 1.90 567.7 N 74.31 E 1.04 621.5 N 74.30 E 0.11 679.4 N 74.31 E 3.86 739.5 N 74.40 E 1.97 ...... 1 ........ 1 ....... 1 ...... 1 ......... l ........ 1 } 1 I I I ! ! ' I I 1 1 1 'l DS 16-31 i S MEAS INCLN C DEPTH ANGLE 3 2398 39.90 3 2491 40.30 3 2584 39.30 3 2675 40.10 3 2770 40.80 VERTICAL-DEPTHS BKB SUB-SEA SECTION DISTNCE 2184.2 2154.1 799.3 2255.4 2225.3 859.2 2326.8 2296.7 918.7 2396.8 2366.7 976.8 2469.1 2439.0 1038.4 3 2863 42.50 2538.6 2508.5 3 2956 44.50 2606.1 2576.0 3 3049 45.00 2672.1 2642.0 3 3143 44.70 2738.8 2708.7 3 3238 44.80 2806.3 2776.2 3 3332 44.70 2873.0 2842.9 3 3426 44.90 2939.7 2909.6 3 3518 44.80 3004.9 2974.8 3 3610 44.40 3070.4 3040.3 3 3704 43.60 3138.1 3108.0 3 3797 43.30 3205.6 3175.5 3 3892 43.20 3274.8 3244.7 3 3985 43.20 3342.6 3312.5 3 4128 43.70 3446.4 3416.3 3 4239 44.50 3526.1 3496.0 3 4332 43.90 3592.8 3562.7 3 4427 43.50 3661.4 3631.3 3 4520 43.20 3729.1 3699.0 3 4614 43.00 3797.7 3767.6 3 4709 42.90 3867.2 3837.1 RECORD OF SURVEY 3 4801 42.40 3934.9 3904.8 3 4895 42.30 4004.4 3974.3 3 4990 43.00 4074.3 4044.2 3 5083 42.90 4142.3 4112.2 3 5177 42.50 4211.4 4181.3 1100.2 1164.2 1229.6 1295.9 1362.7 1428.9 1495.1 1559.9 1624.5 1689.7 1753.7 1818.7 1882.4 1980.7 2057.9 2122.6 2188.1 2251.9 2316.1 2380.8 2443.0 2506.3 2570.7 2634.0 2697.8 DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD N 75.30 E 213.5 N 770.5 E N 74.90 E 228.9 N 828.4 E N 75.30 E 244.3 N 885.9 E N 75.60 E 258.9 N 942.2 E N 75.30 E 274.3 N 1001.8 E N 72.80 E N 71.80 E N 70.70 E N 71.40 E N 71.40 E 291.3 N 1061.2 E 310.8 N 1122.2 E 331.9 N 1184.2 E 353.4 N 1246.9 E 374.7 N 1310.3 E N 72.10 E 395.5 N 1373.1 E N 71.70 E 416.0 N 1436.1 E N 71.10 E 436.7 N 1497.6 E N 71.40 E 457.5 N 1558.8 E N 71.80 E 478.1 N 1620.7 E N 71.80 E 498.1 N 1681.5 E N 71.60 E 518.5 N 1743.3 E N 71.40 E 538.7 N 1803.7 E N 71.80 E 569.8 N 1897.0 E N 70.00 E 595.0 N 1970.0 E Page 2 08/13/92 CLOSURE DISTNCE BEARING DL /1oo 799.5 N 74.51 E 0.95 859.4 N 74.55 E 0.51 919.0 N 74.59 E 1.11 977.1 N 74.64 E 0.90 1038.7 N 74.69 E 0.76 1100.5 N 74.65 E 1164.5 N 74.52 E 1229.8 N 74.34 E 1296.0 N 74.18 E 1362.8 N 74.04 E 1428.9 N 73.93 E 1495.1 N 73.84 E 1560.0 N 73.74 E 1624.5 N 73.64 E 1689.8 N 73.56 E 2.56 2.27 0.99 0.61 0.11 0.53 0.37 0.47 0.49 0.90 1753.7 N 73.50 E 0.32 1818.8 N 73.44 E 0.18 1882.4 N 73.37 E 0.15 1980.7 N 73.28 E 0.40 2057.9 N 73.19 E 1.34 N 70.40 E 617.0 N 2031.0 E 2122.6 N 73.10 E N 70.40 E 639.0 N 2092.8 E 2188.2 N 73.02 E N 70.70 E 660.3 N 2153.0 E 2252.0 N 72.95 E N 70.70 E 681.5 N 2213.6 E 2316.1 N 72.89 E N 71.10 E 702.7 N 2274.8 E 2380.8 N 72.83 E 2443.1 N 72.79 E 2506.4 N 72.76 E 2570.8 N 72.74 E 2634.2 N 72.74 E 2697.9 N 72.74 E N 71.10 E 722.9 N 2333.7 E N 71.80 E 743.0 N 2393.8 E N 72.50 E 762.7 N 2455.0 E N 72.80 E 781.6 N 2515.5 E N 72.80 E 800.5 N 2576.4 E 0.71 0.42 0.39 0.21 0.31 0.54 0.51 0.89 0.24 0.43 ^Survey Codes: 3/MWD ...... 1 1 ....... 1 .....i .... 1 ......... 1 ...... 1 ........... } ...... 1 ......... 1 1 1 .......... 1 ...... 1 ........ 1 1 ...... l 1 DS 16-31 S MEAS INCLN C DEPTH ANGLE 3 5271 42.10 3 5366 43.00 3 5460 43.40 3 5555 44.70 3 5648 44.40 VERTICAL-DEPTHS BKB SUB-SEA 4280.9 4250.8 4350.9 4320.8 4419.4 4389.3 4487.7 4457.6 4554.0 4523.9 3 5742 44.20 3 5836 43.90 3 5930 43.90 3 6025 42.90 3 6118 42.80 RECORD OF SURVEY 3 6212 42.10 3 6306 41.10 3 6400 43.20 3 6494 44.60 3 6588 43.80 SECTION DISTNCE 2761.1 2825.3 2889.6 2955.6 3020.8 3 6683 43.20 3 6778 44.40 3 6874 43.90 3 6969 43.10 3 7065 42.10 DIRECTION BEARING N 73.90 E N 74.60 E N 74.60 E N 75.60 E N 76.70 E 3 7158 44.20 3 7251 44.30 3 7346 45.00 3 7439 44.20 3 7532 45.40 4621.3 4591.2 3086.3 N 77.40 E 4688.8 4658.7 3151.5 N 76.70 E 4756.6 4726.5 3216.6 N 76.00 E 4825.6 4795.5 3281.8 N 76.70 E 4893.8 4863.7 3344.9 N 76.30 E 3 7625 45.60 3 7722 44.50 3 7819 47.20 3 7912 47.50 3 8004 47.50 RELATIVE-COORDINATES FROM-WELL-HEAD 818.6 N 2637.0 E 836.1 N 2698.9 E 853.1 N 2760.9 E 870.1 N 2824.7 E 885.7 N 2888.1 E 900.5 N 2952.0 E 915.1 N 3015.7 E 930.5 N 3079.1 E 945.9 N 3142.5 E 960.7 N 3204.0 E 4963.1 4933.0 3408.3 N 75.30 E 976.2 N 3265.5 E 5033.4 5003.3 3470.6 N 77.00 E 991.2 N 3326.1 E 5103.1 5073.0 3533.5 N 78.80 E 1004.4 N 3387.8 E 5170.8 5140.7 3598.4 N 78.80 E 1017.0 N 3451.7 E 5238.2 5208.1 3663.6 N 78.10 E 1030.1 N 3515.9 E 5307.1 5277.0 3728.8 5375.7 5345.6 3794.3 5444.6 5414.5 3860.9 5513.5 5483.4 3926.1 5584.2 5554.1 3990.8 N 78.80 E 1043.2 N 3580.0 E N 77.40 E 1056.8 N 3644.3 E N 77.70 E 1071.2 N 3709.6 E N 78.80 E 1084.5 N 3773.6 E N 79.10 E 1097.0 N 3837.4 E N 77.70 E 1109.8 N 3899.7 E N 76.70 E 1124.2 N 3963.0 E N 77.00 E 1139.4 N 4028.0 E N 77.00 E 1154.1 N 4091.6 E N 75.30 E 1169.7 N 4155.2 E N 75.30 E 1186.6 N 4219.4 E N 77.40 E 1202.8 N 4286.1 E N 72.50 E 1220.9 N 4353.2 E N 72.50 E 1241.5 N 4418.5 E N 71.40 E 1262.5 N 4483.0 E 5652 . 0 5621.9 4054.1 5718.6 5688.5 4118.8 5786.2 5756.1 4185.5 5852.4 5822.3 4250.6 5918.4 5888.3 4316.1 5983.6 5953.5 4382.4 6052.1 6022.0 4450.9 6119.7 6089.6 4520.4 6182.7 6152.6 4588.8 6244.9 6214.8 4656.6 ^Survey Codes: 3/MWD Page 3 08/13/92 CLOSURE DL DISTNCE BEARING /100 2761.2 N 72.75 E 0.90 2825.4 N 72.79 E 1.07 2889.7 N 72.83 E 0.43 2955.7 N 72.88 E 1.55 3020.8 N 72.95 E 0.89 3086.3 N 73.04 E 0.56 3151.5 N 73.12 E 0.61 3216.6 N 73.19 E 0.52 3281.8 N 73.25 E 1.17 3344.9 N 73.31 E 0.31 3408.3 N 73.36 E 1.03 3470.6 N 73.41 E 1.60 3533.5 N 73.49 E 2.58 3598.4 N 73.58 E 1.49 3663.7 N 73.67 E 1.00 3728.9 N 73.75 E 0.81 3794.4 N 73.83 E 1.62 3861.2 N 73.89 E 0.56 3926.4 N 73.97 E 1.16 3991.1 N 74.05 E 1.06 4054.5 N 74.11 E 2.48 4119.3 N 74.16 E 0.76 4186.0 N 74.21 E 0.77 4251.3 N 74.25 E 0.86 4316.7 N 74.28 E 1.82 4383.1 N 74.29 E 0.22 4451.7 N 74.32 E 1.91 4521.2 N 74.33 E 4.57 4589.6 N 74.31 E 0.32 4657.3 N 74.27 E 0.88 ....... 11 1 ....... l ......... l ...... ! ......... 1 ] .......... l ....... I ! I 1 ........... } ........ i ........ 1 ....... 1 ....... 1 ........ / DS 16-31 Page 4 08/13/92 MEAS INCLN DEPTH ANGLE 8099 47.10 8192 46.70 8286 46.40 8380 46.30 8473 46.40 RECORD OF SURVEY 6309.3 6279.2 4726.4 N 72.40 E 1284.2 N 4549.3 E 4727.1 N 74.24 E 0.88 6372 . 9 6342 . 8 4794 . 3 N 71.80 E 1305 . 1 N 4613 . 9 E 4795 . 0 N 74 . 21 E 0 . 64 6437.5 6407.4 4862.5 N 71.10 E 1326.8 N 4678.6 E 4863.1 N 74.17 E 0.63 6502.4 6472.3 4930.5 N 70.40 E 1349.2 N 4742.8 E 4931.0 N 74.12 E 0.55 6566.6 6536.5 4997.7 N 70.00 E 1372.0 N 4806.2 E 4998.2 N 74.07 E 0.33 3 8566 46.00 3 8661 45.00 3 8756 44.20 3 8848 43.40 3 8942 43.10 6630.9 6600.8 5064.7 N 70.40 E 1394.7 N 4869.3 E 5065.1 N 74.02 E 0.53 6697.5 6667.4 5132.4 N 72.50 E 1416.3 N 4933.5 E 5132.8 N 73.98 E 1.90 6765.2 6735.1 5199.1 N 74.20 E 1435.4 N 4997.4 E 5199.5 N 73.97 E 1.51 6831.6 6801.5 5262.8 N 72.80 E 1453.5 N 5058.5 E 5263.2 N 73.97 E 1.37 6900.1 6870.0 5327.2 N 73.90 E 1471.9 N 5120.2 E 5327.6 N 73.96 E 0.86 3 9037 43.20 3 9132 43.50 3 9227 43.70 3 9322 43.40 3 9413 43.90 6969.4 6939.3 5392.2 N 72.80 E 1490.6 N 5182.4 E 5392.5 N 73.95 E 0.80 7038.4 7008.3 5457.4 N 73.90 E 1509.2 N 5244.9 E 5457.8 N 73.95 E 0.86 7107.2 7077.1 5522.9 N 73.50 E 1527.6 N 5307.8 E 5523.3 N 73.94 E 0.36 7176.1 7146.0 5588.3 N 73.90 E 1546.0 N 5370.6 E 5588.7 N 73.94 E 0.43 7241.9 7211.8 5651.1 N 72.50 E 1564.2 N 5430.8 E 5651.5 N 73.93 E 1.20 3 9509 43.50 3 9604 42.90 3 9698 42.20 3 9793 41.80 3 9888 41.60 7311.3 7281.2 5717.5 N 72.50 E 1584.1 N 5494.0 E 5717.8 N 73.92 E 0.42 7380.6 7350.5 5782.5 N 71.80 E 1604.0 N 5555.9 E 5782.8 N 73.90 E 0.81 7449.8 7419.7 5846.0 N 70.00 E 1624.8 N 5616.0 E 5846.3 N 73.86 E 1.49 7520.4 7490.3 5909.4 N 69.30 E 1646.9 N 5675.6 E 5909.7 N 73.82 E 0.65 7591.4 7561.3 5972.5 N 69.00 E 1669.4 N 5734.6 E 5972.7 N 73.77 E 0.30 3 9982 41.20 3 10075 41.50 3 10169 41.70 3 10265 42.40 3 10358 42.10 7661.9 7631.8 6034.4 N 67.90 E 1692.2 N 5792.4 E 6034.6 N 73.71 E 0.88 7731.7 7701.6 6095.6 N 68.20 E 1715.2 N 5849.4 E 6095.7 N 73.66 E 0.39 7802.0 7771.9 6157.8 N 69.00 E 1738.0 N 5907.5 E 6157.9 N 73.61 E 0.60 7873.3 7843.2 6221.9 N 68.60 E 1761.2 N 5967.5 E 6222.0 N 73.56 E 0.78 7942.1 7912.0 6284.2 N 67.90 E 1784.4 N 6025.6 E 6284.2 N 73.50 E 0.60 3 10453 41.60 3 10548 41.50 3 10642 41.40 3 10736 41.00 3 10831 40.50 8012.9 7982.8 6347.2 N 67.20 E 1808.6 N 6084.1 E 6347.3 N 73.44 E 0.72 8084.0 8053.9 6409.9 N 67.90 E 1832.7 N 6142.4 E 6410.0 N 73.39 E 0.50 8154.4 8124.3 6471.9 N 68.20 E 1855.9 N 6200.1 E 6471.9 N 73.34 E 0.24 8225.2 8195.1 6533.5 N 67.50 E 1879.3 N 6257.4 E 6533.5 N 73.28 E 0.65 8297.1 8267.0 6595.1 N 65.80 E 1903.8 N 6314.4 E 6595.1 N 73.22 E 1.28 ^Survey Codes: 3/MWD VERTICAL-DEPTHS SECTION DIRECTION RELATIVE-COORDINATES CLOSURE DL BKB SUB-SEA DISTNCE BEARING FROM-WELL-HEAD DISTNCE BEARING /100 / 1 1 ........ 1 ....... l ......... 1 ....... I ........ 1 ....1 ! 1 ....... 1 ....... } ....... } ....... 1 ........... l 1 ....... 1 .......... 1 DS 16-31 Page 5 08/13/92 S MEAS INCLN C DEPTH ANGLE 3 10926 39.90 3 11021 39.40 3 11117 38.60 3 11209 37.50 3 11299 36.00 3 11393 35.20 3 11486 35.70 3 11577 35.20 3 11669 34.30 3 11764 34.00 3 11858 33.70 3 11900 33.70 ^Survey Codes: VERTICAL-DEPTHS BKB SUB-SEA RECORD OF SURVEY SECTION DISTNCE DIRECTION RELATIVE-COORDINATES CLOSURE DL BEARING FROM-WELL-HEAD DISTNCE BEARING /100 3/MWD 9120.6 9090.5 7197.3 N 61.60 E 2182.7 N 6859.3 E 7198.2 N 72.35 E 0.89 9155.6 9125.5 7220.2 N 63.00 E 2193.5 N 6880.0 E 7221.2 N 72.32 E 1.85 8738.4 8708.3 6938.1 N 60.90 E 2055.9 N 6626.8 E 6938.4 N 72.76 E 1.21 8814.2 8784.1 6991.0 N 62.60 E 2081.4 N 6674.3 E 6991.4 N 72.68 E 1.19 8888.3 8858.2 7042.8 N 62.00 E 2106.0 N 6721.1 E 7043.3 N 72.60 E 0.67 8963.9 8933.8 7094.1 N 60.90 E 2131.0 N 6767.1 E 7094.7 N 72.52 E 1.19 9042.5 9012.4 7146.2 N 60.20 E 2157.2 N 6813.6 E 7146.9 N 72.43 E 0.52 8369.7 8339.6 6655.9 N 65.80 E 1929.0 N 6370.3 E 6656.0 N 73.15 E 0.63 8442.8 8412.7 6716.0 N 65.40 E 1954.0 N 6425.5 E 6716.1 N 73.09 E 0.59 8517.5 8487.4 6775.7 N 63.70 E 1980.0 N 6480.1 E 6775.8 N 73.01 E 1.39 8589.9 8559.8 6831.6 N 63.30 E 2005.3 N 6530.8 E 6831.7 N 72.93 E 1.23 8662.0 8631.9 6884.6 N 62.30 E 2029.9 N 6578.7 E 6884.7 N 72.85 E 1.79 ...... 1 ....... l ....... 1 } ........ 1 ......... 1 ........ ] ! ..... 1 ....... 1 .......... 1 1 ......... l ...... 1 ....... l ........ l 1 } .......... DS 16-31 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL Page 6 08/13/92 SUBSEA MEAS INCLN TVD DEPTH DEPTH ANGLE BKB MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 400 430 0.61 430 0 0 S 52.98 W 0.22 S 1.56 W 500 530 2.64 530 0 0 N 88.54 E 0.24 S 0.57 E 600 630 6.31 630 0 0 N 78.46 E 0.98 N 8.16 E 700 732 10.17 730 1 1 N 75.81 E 4.60 N 22.26 E 800 834 13.53 830 4 2 N 74.73 E 9.72 N 42.73 E 900 937 16.95 930 7 4 N 73.28 E 17.41 N 68.77 E 1000 1043 20.17 1030 13 6 N 75.31 E 26.65 N 101.15 E 1100 1150 21.59 1130 20 7 N 78.89 E 35.08 N 138.48 E 1200 1258 23.85 1230 28 9 N 74.05 E 45.27 N 179.33 E 1300 1368 25.59 1330 38 10 N 72.91 E 58.14 N 222.93 E 1400 1480 27.51 1430 50 12 N 73.20 E 73.33 N 271.30 E 1500 1594 28.59 1530 64 13 N 74.79 E 87.88 N 322.37 E 1600 1709 30.49 1630 78 15 N 73.88 E 103.08 N 376.86 E 1700 1827 34.30 1730 97 19 N 73.20 E 121.27 N 438.08 E 1800 1950 36.01 1830 120 23 N 73.44 E 141.79 N 506.15 E 1900 2073 35.35 1930 143 23 N 74.20 E 161.53 N 574.87 E 2000 2197 38.46 2030 167 24 N 74.54 E 181.42 N 645.73 E 2100 2327 40.36 2130 197 30 N 76.06 E 202.26 N 726.26 E 2200 2458 40.16 2230 228 31 N 75.04 E 223.40 N 807.72 E 2300 2588 39.34 2330 258 30 N 75.31 E 244.93 N 888.49 E 2400 2719 40.42 2430 288 30 N 75.46 E 265.89 N 969.43 E 2500 2851 42.29 2530 321 33 N 73.11 E 289.06 N 1053.79 E 2600 2990 44.68 2630 360 38 N 71.40 E 318.29 N 1144.67 E 2700 3131 44.74 2730 401 41 N 71.31 E 350.64 N 1238.76 E 2800 3272 44.76 2830 442 41 N 71.65 E 382.23 N 1332.74 E 2900 3412 44.87 2930 482 41 N 71.76 E 413.03 N 1427.01 E 3000 3553 44.65 3030 523 41 N 71.22 E 444.77 N 1521.18 E 3100 3693 43.69 3130 563 40 N 71.75 E 475.73 N 1613.51 E 3200 3831 43.26 3230 601 38 N 71.73 E 505.31 N 1703.42 E 3300 3968 43.20 3330 638 37 N 71.44 E 534.99 N 1792.56 E 1 1 I 1 ........ 1 ...... 1 ! ' 'l I 1 ! } I ....] 1 ..... 1 ...... 1 .... 1 .....1 DS 16-31 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL Page 7 08/13/92 SUBSEA MEAS INCLN TVD DEPTH DEPTH ANGLE BKB MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 3400 4106 43.62 3430 675 38 N 71.74 E 564.90 N 3500 4245 44.46 3530 715 39 N 70.02 E 596.38 N 3600 4384 43.68 3630 754 39 N 70.40 E 629.01 N 3700 4521 43.20 3730 791 38 N 70.70 E 660.60 N 3800 4658 42.95 3830 828 37 N 70.89 E 691.43 N 3900 4794 42.44 3930 864 36 N 71.10 E 721.45 N 4000 4930 42.56 4030 900 35 N 72.06 E 750.31 N 4100 5066 42.92 4130 936 36 N 72.75 E 778.28 N 4200 5202 42.39 4230 972 36 N 73.10 E 805.51 N 4300 5338 42.73 4330 1008 35 N 74.39 E 830.89 N 4400 5475 43.60 4430 1045 37 N 74.75 E 855.82 N 4500 5615 44.51 4530 1084 40 N 76.30 E 880.27 N 4600 5754 44.16 4630 1124 40 N 77.31 E 902.33 N 4700 5893 43.90 4730 1163 39 N 76.27 E 924.38 N 4800 6031 42.89 4830 1201 38 N 76.67 E 946.85 N 4900 6167 42.43 4930 1237 36 N 75.77 E 968.72 N 5000 6302 41.15 5030 1271 34 N 76.92 E 990.50 N 5100 6437 43.75 5130 1307 36 N 78.80 E 1009.33 N 5200 6577 43.90 5230 1347 40 N 78.18 E 1028.53 N 5300 6715 43.60 5330 1384 38 N 78.33 E 1047.54 N 5400 6854 44.00 5430 1424 39 N 77.64 E 1068.23 N 5500 6992 42.86 5530 1462 38 N 78.87 E 1087.53 N 5600 7128 43.51 5630 1498 36 N 78.16 E 1105.39 N 5700 7267 44.42 5730 1537 39 N 76.75 E 1126.75 N 5800 7408 44.47 5830 1578 41 N 77.00 E 1149.14 N 5900 7549 45.44 5930 1619 41 N 75.30 E 1172.75 N 6000 7691 44.85 6030 1661 42 N 76.73 E 1197.91 N 6100 7834 47.25 6130 1704 43 N 72.50 E 1224.29 N 6200 7982 47.50 6230 1752 48 N 71.66 E 1257.39 N 6300 8130 46.97 6330 1799 47 N 72.20 E 1290.98 N 1882.22 E 1973.65 E 2064.67 E 2153.89 E 2242.10 E 2329.58 E 2416.12 E 2504.67 E 2592.76 E 2680.23 E 2770.65 E 2865.27 E 2960.41 E 3054.35 E 3146.58 E 3236.44 E 3323.27 E 3412.87 E 3508.27 E 3601.26 E 3695.96 E 3788.80 E 3879.11 E 3973.89 E 4070.35 E 4166.69 E 4264.86 E 4363.94 E 4467.66 E 4570.59 E 1 1 1 ...... 1 1 ...... 1 .....1 .......... l 1 1 .... 1 ......... 1 ...... 1 ......... 1 ....... 1 ...... ] ...... l -I ...... DS 16-31 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL Page 8 08/13/92 SUBSEA DEPTH 6400 6500 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500 7600 7700 7800 7900 8000 8100 8200 8300 8400 8500 8600 8700 8800 8900 9000 9100 MEAS INCLN TVD MD-TVD VERT DIRECTION DEPTH ANGLE BKB DIFF CRRT BEARING 8275 46.43 6430 1845 46 N 71.18 E 8420 46.34 6530 1890 45 N 70.23 E 8565 46.01 6630 1935 45 N 70.39 E 8707 44.61 6730 1977 42 N 73.32 E 8846 43.42 6830 2016 39 N 72.83 E 8983 43.14 6930 2053 37 N 73.42 E 9121 43.46 7030 2090 37 N 73.77 E 9259 43.60 7130 2128 38 N 73.63 E 9397 43.81 7230 2166 38 N 72.75 E 9535 43.34 7330 2205 38 N 72.31 E 9671 42.40 7430 2241 36 N 70.51 E 9806 41.77 7530 2276 35 N 69.26 E 9940 41.38 7630 2310 34 N 68.40 E 10073 41.49 7730 2343 33 N 68.19 E 10207 41.98 7830 2377 34 N 68.84 E 10342 42.15 7930 2412 35 N 68.02 E 10476 41.58 8030 2446 34 N 67.37 E 10610 41.43 8130 2479 34 N 68.10 E 10743 40.97 8230 2512 33 N 67.38 E 10874 40.23 8330 2544 32 N 65.80 E 11004 39.49 8430 2574 30 N 65.47 E 11133 38.41 8530 2603 29 N 63.63 E 11259 36.66 8630 2629 26 N 62.74 E 11383 35.29 8730 2653 23 N 61.05 E 11506 35.59 8830 2675 23 N 62.47 E 11628 34.70 8930 2698 22 N 61.39 E 11749 34.05 9030 2719 21 N 60.31 E 11869 33.70 9130 2739 20 N 61.98 E RELATIVE COORDINATES FROM WELL HEAD 1324.25 N 4671.28 E 1358.97 N 4770.18 E 1394.43 N 4868.49 E 1425.79 N 4964.46 E 1453.07 N 5057.16 E 1479.86 N 5147.21 E 1507.04 N 5237.33 E 1533.80 N 5328.72 E 1560.76 N 5419.90 E 1589.46 N 5510.93 E 1618.76 N 5599.06 E 1649.98 N 5683.64 E 1681.86 N 5766.54 E 1714.69 N 5848.12 E 1747.03 N 5931.02 E 1780.33 N 6015.49 E 1814.51 N 6098.24 E 1847.94 N 6180.16 E 1880.92 N 6261.40 E 1915.33 N 6339.93 E 1949.67 N 6415.97 E 1984.44 N 6489.07 E 2019.06 N 6557.88 E 2053.04 N 6621.68 E 2086.68 N 6684.46 E 2119.80 N 6746.78 E 2153.06 N 6806.28 E 2185.69 N 6864.90 E DS 16-31 Page 9 08/13/92 DATA INTERPOLATED FOR 1000 FT MEASURED DEPTH INTERVAL MEAS INCLN VERT-DEPTHS SECT DIRECTION REL-COORDINATES CLOSURE DL/ DEPTH ANGLE BKB SUB-S DIST BEARING FROM-WELLHEAD DIST BEARING 100 1000 18.92 990 960 90 N 74.19 E 2000 35.59 1871 1841 555 N 73.97 E 3000 44.74 2637 2607 1195 N 71.28 E 4000 43.25 3353 3323 1893 N 71.44 E 5000 42.99 4082 4051 2578 N 72.53 E 23 N 150 N 321 N 542 N 765 N 87 E 90 N 75.31 E 3.0 534 E 555 N 74.32 E 1.0 1152 E 1195 N 74.44 E 1.0 1813 E 1893 N 73.36 E 0.4 2462 E 2578 N 72.74 E 0.0 6000 43.16 4807 4777 3265 N 76.52 E 942 N 7000 42.78 5536 5506 3947 N 78.90 E 1089 N 8000 47.50 6242 6212 4654 N 71.45 E 1262 N 9000 43.16 6942 6912 5367 N 73.23 E 1483 N 10000 41.26 7675 7645 6046 N 67.96 E 1697 N 3126 E 3265 N 73.23 E 1.2 3794 E 3947 N 73.99 E 1.1 4480 E 4654 N 74.27 E 0.9 5158 E 5367 N 73.96 E 0.8 5803 E 6046 N 73.70 E 0.4 11000 39.51 8427 8397 6703 N 65.49 E 1948 N 6413 E 6703 N 73.10 E 0.6 PRUDHOE BAY DRIL NG Marker Iden[[flca[ion MD BKB SECTN INCLN A} KB 0 0 0 O.O0 BI TD 11900 9i56 7220 33.78 DS 16-31 VERTICAL SECTION VIEW Section at: N 73.27 E TVD Scale.: t inch = t200 feet Dep Scale.: t inch : 1200 feet Drawn ..... : 08/13/92 4200 4800 5400 6000 6600 7200 7800 Section .~parture DS .6-3'1 PLAN VIEN CLOSURE ..... : 728t f~ at N 72.32 E DECLINATION.: 30. t6 E SCALE ....... : f inch = t200 feet DRANN ....... : 08/:[3/92 £Peat Land DJf'ect.fona2 Df'.iJ2.fng 600 0 600 1800 ~600 8400 8000 3600 4200 4800 5400 8000 6600 7200 7800 OR~GINA~, SUB - S URFA CE DIRECTIONAL SURVEY UIDANCE ~ ONTINUOUS r~ OOL I ICI OFI/NED Company ARCO ALASKA, INC. J Well Name D.S. 16-31 (1800' SNL, 1282' EWL, SEC 24, TION, R15E) i Field/Location PRUDHOE BAY, NORTH SLOPE, ALASKA Job Reference No. 92510 Lo~lqed BV: PORTER RECEIVED OCT ~OiJ & Gas Cons. C;om~issio~ ~n~horago Date 18-AUG-92 Computed By: KRUb'ELL · SCHLUMB~GF_R * GCT DIRECTIONAL SURVEY CUSTOMER LISTING FOR ARCO ALASKA, INC. D .S. 15-31 PRUDHOE BaY NORI'lq SLOPE, ALASKA SL~VEY DATE: 18-AUG-1992 ENGINEER' K. PORTER METHODS OF COMPUTATION TOOL LOCATION: TANGENTIAL- Averaged deviation and azimuth INTERPOLATION: LINEAR VERTICAL SECTION: HORIZ. DIST. PROJECTED ONTO A TARGET AZIMUTH OF NORTH 73 DEG 18 MIN EAST COMPUTATION DATE' 23-AUG-92 PAGE I ARCO ALASKA, INC. D .S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY' 18-AUG-1992 KELLY BUSHING ELEVATION' 68.00 FT ENGINEER' K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0 O0 100 O0 200 O0 300 O0 400 O0 500 O0 600 O0 700 O0 800 O0 900 O0 0 O0 100 O0 200 O0 300 O0 400 O0 499 99 599 85 699 12 797 49 894 60 -68.00 32 O0 132 O0 232 O0 332 O0 431 99 531 85 631 12 729 826 0 0 N 0 0 E 0 0 N 0 0 E 0 9 S 38 15 E 0 12 N 89 35 W 0 12 S 13 9 W 1 11 S 88 56 E 5 I N78 51E 8 21 N 76 37 E 49 12 0 N 74 48 E 60 15 35 N 72 29 E 0 O0 0 O0 -0 og -0 33 -0 61 -0 38 4 63 16 48 34 35 58 13 0 O0 0 O0 0 51 0 04 0 O0 3 O5 5 66 2 73 2 63 2 38 O00N 0 O0 N 041 S 0 515 0 73 S 1 13 S 029 S 227 N 6 76 N 13 56 N O00E 0 O0 E 003 E 0 19W 042W O06W 4 92 E 16 53 E 33 83 E 56 62 E 0 1 4 16 34 58 000 N 0 OE 0 O0 N 0 0 E 041 S 4 22 E 0 54 S 2O 32 W 84 S 29 38 W 14 S 2 48 W 93 S 86 36 E 68 N 82 11 E 50 N 78 42 E 22 N 76 32 E 1000 OO 1100 1200 1300 1400 1500 1600 1700 1800 1900 990 36 O0 1084 O0 1177 O0 1269 O0 1360 O0 1449 O0 1537 O0 1624 O0 1709 O0 1792 922 36 18 16 60 1016 66 1109 59 1201 14 1292 25 1381 59 1469 49 1556 49 1641 30 1724 N 75 8 E 60 20 31 N 77 42 E 66 22 18 N 77 16 E 59 24 7 N 75 9 E 14 26 14 N 74 20 E 25 27 28 N 74 25 E 59 28 42 N 74 51E 49 30 27 N 74 29 E 49 33 4 N 74 6 E 30 34 54 N 73 58 E 86 90 120 30 156 76 196 05 238 46 283 83 33O 67 380 12 432 78 488 82 4 21 2 18 1 71 2 10 2 50 0 59 2 81 2 10 2 22 0 85 21 71 N 29 37 46 57 70 82 95 109 125 84 22 E 44 N 116 19 N 152 63 N 190 84 N 231 09 N 275 48 N 320 53 N 368 82 N 418 25 N 472 86 97 N 75 33 E 76 E 120 50 E 156 69 E 196 61E 238 30 E 284 48 E 33O 20 E 380 89 E 433 77 E 489 41 N 75 51E 97 N 76 18 E 31 N 76 16 E 72 N 75 59 E 08 N 75 43 E 93 N 75 34 E 39 N 75 27 E 04 N 75 19 E O8 N 75 10 E 2000 O0 1874 18 1806.18 35 11 2100 2200 2300 2400 2500 2600 2700 2800 2900 O0 1955 O0 2035 O0 2112 O0 2189 O0 2265 O0 2342 O0 2419 O0 2495 O0 2569 71 1887.71 35 36 72 1967 72 38 28 79 2044 79 40 15 14 2121 14 40 9 44 2197 44 40 15 32 2274 32 39 24 23 2351 23 40 5 11 2427 11 41 23 06 2501 06 43 18 N 73 56 E N 74 16 E N 75 0 E N 75 56 E N 75 48 E N 75 27 E N 75 37 E N 75 18 E N 73 46 E 1049 N 72 22 E 1117 546 23 604 13 664 07 727 74 792 25 856 84 920 74 984 6O 71 O1 0 62 0 94 3 53 0 56 0 57 0 67 0 63 0 80 2 48 2 08 141 12 N 527 95 E 546 48 N 75 2 E 157 172 188 204 220 236 252 269 289 O1N 583 91N 641 88 N 703 53 N 765 63 N 828 62 N 890 61N 952 79 N 1014 46 N 1079 63 E 604 43 E 664 12 E 728 77 E 792 37 E 857 30 E 921 17 E 985 99 E 1050 35 E 1117 38 N 74 57 E 33 N 74 55 E O5 N 74 58 E 61 N 75 3 E 25 N 75 5 E 20 N 75 7 E 11 N 75 9 E 24 N 75 7 E 49 N 74 59 E 3000 O0 2640 77 2572 77 44 58 3100 3200 3300 3400 3500 3600 3700 3800 O0 2711 O0 2782 O0 2852 O0 2923 O0 2994 O0 3065 O0 3137 O0 3209 3900.00 3282 39 2643 15 2714 98 2784 81 2855 54 2926 45 2997 17 3069 58 3141 11 3214 39 45 0 15 44 56 98 44 53 81 44 57 54 45 2 45 44 35 17 43 50 58 43 33 11 43 24 N 71 23 E 1186 68 N 71 3 E 1257 N 7O 55 E 1328 N 70 46 E 1398 N 70 38 E 1469 N 7O 39 E 1539 N 70 39 E 1610 N 70 59 E 1679 N 71 26 E 1748 N 71 16 E 1817 43 O3 56 O8 70 13 75 67 48 0 77 0 23 0 23 0 22 0 4O 0 29 0 97 0 55 0 43 0 28 311.16 N 1145 58 E 1187 09 N 74 48 E 333.98 N 1212 356.99 N 1279 380.17 N 1346 403.48 N 1412 426.94 N 1479 450.33 N 1545 473.24 N 1611 495.39 N 1677 517.39 N 1742 61 E 1257 76 N 74 36 E 41 E 1328 28 N 74 25 E 09 E 1398 75 N 74 14 E 72 E 1469 21 N 74 4 E 41 E 1539 78 N 73 54 E 92 E 1610 18 N 73 46 E 74 E 1679 78 N 73 38 E 05 E 1748.69 N 73 33 E 29 E 1817.49 N 73 28 E COMPUTATION DATE' 23-AUG-g2 PAGE 2 ARCO ALASKA, TNC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY' 18-AUG-1992 KELLY BUSHING ELEVATION' 68.00 FT ENGINEER' K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZI~ErrH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 4000.00 3354 77 3286.77 43 26 4100.00 3427 4200.00 3499 4300.00 3571 4400.00 3643 4500.00 3715 4600.00 3788 4700.00 3861 4800.00 3935 4900.00 4009 21 3359.21 43 43 33 3431.33 43 58 14 3503 14 44 11 17 3575 17 43 40 74 3647 74 43 17 75 3720 75 42 57 97 3793 97 42 56 27 3867 27 42 39 04 3941 04 42 27 N 71 16 E 1886.14 N 71 9 E 1955.04 N 70 40 E 2024.25 N 70 0 E 2093 74 N 70 1E 2162 99 N 70 14 E 2231 69 N 70 16 E 2299 93 N 70 29 E 2367 95 N 70 47 E 2435 90 N 71 11E 2503 35 0 20 0 29 0 87 0 20 0 36 0 21 0 05 0 15 0 48 0 54 539.47 N 1807 35 E 1886 14 N 73 23 E 561 66 N 1872 584 607 631 654 677 700 723 745 24 N 1938 72 N 2003 47 N 2068 83 N 2133 94 N 2197 83 N 2261 42 N 2326 42 N 2389 62 E 1955 11E 2024 61E 2O93 79 E 2163 50 E 2231 82 E 2300 96 E 2368 12 E 2436 95 E 2503 O4 N 73 18 E 25 N 73 13 E 75 N 73 8 E 02 N 73 2 E 73 N 72 56 E O0 N 72 51E 04 N 72 47 E O2 N 72 43 E 50 N 72 41E SO00 O0 4082.55 4014.55 42 52 5100 5200 5300 5400 5500 5600 5700 5800 5900 O0 4155.81 4087.81 42 50 O0 4229.38 4161.38 42 24 O0 4303.16 4235.16 42 48 O0 4376.30 4308.30 43 6 O0 4448.86 4380.86 43 53 O0 4520.43 4452.43 44 36 O0 4591.66 4523.66 44 25 O0 4663.27 4595.27 44 4 O0 4735.27 4667.27 43 56 N 72 8 E 2571 12 N 72 21E 2639 N 72 58 E 2706 N 73 42 E 2774 N 74 23 E 2842 N 75 4 E 2911 N 76 I E 2981 N 76 22 E 3051 N 76 22 E 3120 N 76 12 E 3190 18 91 41 59 38 16 26 95 26 O. 40 0.51 I. 38 1.11 O. 53 I .39 0.47 0.56 O. 84 O. 17 766 74 N 2454.30 E 2571.28 N 72 39 E 787 807 827 845 864 881 898 914.51N 2984 931.01N 3051 47 N 2519.14 E 2639.35 N 72 38 E 75 N 2583.77 E 2707.09 N 72 38 E 06 N 2648.45 E 2774.58 N 72 39 E 76 N 2714 03 E 2842.75 N 72 41 E 02 N 2780 37 E 2911.52 N 72 44 E 40 N 2848 01E 2981.27 N 72 48 E 13 N 2916 17 E 3051.34 N 72 53 E 02 E 3121.01 N 72 58 E 43 E 3190.30 N 73 2 E 6000.00 4807 32 4739 32 43 41 6100 O0 4880 6200 6300 6400 6500 6600 6700 6800 6900 O0 4953 O0 5028 O0 5102 O0 5175 O0 5246 O0 5319 O0 5391 O0 5462 20 4812 81 4885 57 4960 85 5034 19 5107 72 5178 22 5251 03 5323 77 5394 20 43 0 81 42 5 57 41 24 85 42 52 19 44 22 72 43 55 22 43 38 03 44 27 77 43 48 N 76 14 E 3259 51 N 76 21E 3327 N 76 45 E 3395 N 77 10 E 3461 N 77 5O E 3528 N 78 2 E 3597 N 78 3 E 3666 N 78 18 E 3735 N 77 2O E 38O4 N 77 45 E 3874 89 48 76 52 33 98 59 97 45 0 92 0 29 I 04 0 64 2 07 1 16 i 34 1 24 0 21 1 36 947.54 N 3118 77 E 3259 53 N 73 6 E 963.76 N 3185 979 58 N 3251 994 55 N 3315 1009 O7 N 3381 1023 42 N 3448 1037 97 N 3517 1051 97 N 3584 1066 67 N 3652 1081 29 E 3327 11E 3395 82 E 3461 16 E 3528 69 E 3597 O5 E 3667 48 E 3735 50 E 3805 79 N 3720.51 E 3874 90 N 73 10 E 48 N 73 14 E 76 N 73 18 E 52 N 73 23 E 34 N 73 28 E 01 N 73 33 E 66 N 73 39 E 07 N 73 43 E 59 N 73 47 E 7000.00 5535.51 5467.51 42 55 7100.00 5608.90 5,.540.90 42 53 7200.00 5681.27 5613.27 44 19 7300.00 5752.49 5684.49 44 57 7400.00 5823.17 5755 17 44 51 7500.00 5894.03 5826 03 45 16 7600.00 5963.94 5895 94 45 56 7700.00 6033.77 5965 77 45 26 7800.00 6103.66 6035 66 46 25 7900.00 6171.58 6103 58 47 36 N 78 15 E 3942.84 N 78 19 E 4010.50 N 77 57 E 4079.26 N 76 57 E 4149.27 N 76 11E 4219.89 N 75 31E 4290.39 N 74 20 E 4361.86 N 74 32 E 4433.42 N 73 52 E 4504.93 N 72 39 E 4578.33 0 52 1 26 1 03 1 18 0 93 1 02 0 83 0 54 2 94 0 54 1096 02 N 3787 64 E 3943 03 N 73 52 E 1109 75 N 3854 1123 94 N 3921 1139 19 N 3990 1155 60 N 4059 1172 88 N 4127 1191.48 N 4196 1210.71N 4265 1230.00 N 4334 16 E 4010 69 E 4079 21E 4149 O2 E 4220 43 E 4290 48 E 4362 41E 4433 28 E 4505 1251.27 N 4404.53 E 4578 74 N 73 56 E 57 N 74 0 E 64 N 74 4 E 31 N 74 7 E 84 N 74 8 E 34 N 74 9 E 91 N 74 9 E 43 N 74 9 E 82 N 74 8 E COMPUTATION DATE' 23-AUG-92 PAGE 3 ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY' 18-AUG-1992 KELLY BUSHING ELEVATION' 68.00 FT ENGINEER' K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/1OO FEET FEET FEET DEG 8000.00 6239 03 6171 03 47 28 8100.00 6306 8200 O0 6374 8300 O0 6443 8400 O0 6512 8500 O0 6581 8600 O0 6650 8700 O0 6720 8800 O0 6791 8900 O0 6864 69 6238 77 6306 46 6375 35 6444 27 6513 39 6582 37 6652 77 6723 15 6796 69 47 15 77 46 50 46 46 29 35 46 28 27 46 25 39 45 57 37 44 58 77 43 54 15 43 25 N 72 7 E 4652 14 N 71 40 E 4725 N 71 20 E 4798 N 70 37 E 4871 N 70 16 E 4943 N 69 52 E 5016 N 70 26 E 5088 N 71 54 E 5159 N 73 24 E 5229 N 73 17 E 5298 75 96 58 97 32 46 84 84 85 0 52 0 39 0 81 0 43 0 O9 0 49 0 97 I 58 0 74 0 31 1273.59 N 4474 90 E 4652 60 N 74 7 E 1296.53 N 4544 1319.74 N 4614 1343.45 N 4683 1367.73 N 4751 1392.45 N 4819 1417.12 N 4887 1440.25 N 4954 1461.02 N 5021 1480.83 N 5087 87 E 4726 34 E 4799 04 E 4871 33 E 4944 45 E 5016 37 E 5088 95 E 5160 81E 5230 91E 5299 19 N 74 5 E 36 N 74 2 E 93 N 74 0 E 28 N 73 56 E 58 N 73 53 E 68 N 73 50 E 03 N 73 48 E 02 N 73 47 E 03 N 73 46 E 9000 O0 6937.01 6869 01 43 10 9100 9200 9300 9400 9500 9600 9700 9800 9900 O0 7009.76 6941 O0 7082.14 7014 O0 7154.28 7086 O0 7226.25 7158 O0 7298.35 7230 O0 7371.06 7303 O0 7444.57 7376 O0 7518.75 7450 O0 7593.39 7525 76 43 28 14 43 44 28 43 57 25 43 58 35 43 42 06 42 58 57 42 22 75 41 53 39 41 35 N 74 18 E 5367 34 N 74 17 E 5435 N 73 50 E 5504 N 73 24 E 5574 N 72 38 E 5643 N 71 44 E 5712 N 70 55 E 5781 N 70 4 E 5849 N 69 19 E 5916 N 68 33 E 5982 93 93 18 60 88 49 2O 13 49 0 97 0 48 0 27 0 42 0 61 0 63 0 81 1 O1 0 57 0 78 1500 09 N 5153 64 E 5367 52 N 73 46 E 1518 1537 1556 1577 1598 1620 1643 1666 1690 50 N 5219 46 N 5286 97 N 5352 25 N 5418 46 N 5484 44 N 5549 O7 N 5613 37 N 5676 25 N 5738 73 E 5436 07 E 5505 52 E 5574 92 E 5643 89 E 5713 92 E 5781 83 E 5849 71E 5916 83 E 5982 12 N 73 47 E 12 N 73 47 E 37 N 73 47 E 79 N 73 46 E 06 N 73 45 E 65 N 73 43 E 34 N 73 41E 23 N 73 38 E 56 N 73 35 E 10000.00 7668 34 7600 34 41 19 10100.00 7743 10200.00 7817 10300.00 7891 10400 O0 7965 10500 O0 8040 10600 O0 8115 10700 O0 8190 10800 O0 8265 10900 O0 8341 43 7675 43 41 4O 85 7749 85 42 2 77 7823 77 42 24 93 7897 93 41 54 62 7972 62 41 24 46 8047.46 41 46 39 8122.39 41 20 75 8197.75 40 47 69 8273.69 40 18 N 67 48 E 6048 42 N 68 17 E 6114 N 68 44 E 6180 N 68 53 E 6247 N 67 55 E 6314 N 66 42 E 6380 N 67 24 E 6446 N 66 59 E 6512 N 66 12 E 6577 N 65 25 E 6642 16 73 89 74 86 78 64 gl 42 0 gl 1 59 1 22 1 03 0 95 1 O4 0 91 0 49 0 56 I O6 1714 93 N 5800 25 E 6048 46 N 73 32 E 1739 1764 1788 1813 1838 1864 1890 1916 1942 78 N 5861 19 N 5923 33 N 5986 O1N 6O48 63 N 6110 60 N 6171 19 N 6232 29 N 6292 96 N 6352 44 E 6114 62 E 6180 49 E 6247 87 E 6314 23 E 6380 25 E 6446 34 E 6512 66 E 6577 01E 6642 19 N 73 28 E 74 N 73 25 E 90 N 73 22 E 74 N 73 19 E 86 N 73 15 E 79 N 73 11E 67 N 73 8 E 97 N 73 4 E 52 N 73 0 E 11000 O0 8418.18 8350 18 39 53 11100 11200 11300 11400 11500 11600 11700 11800 O0 8495.39 8427 O0 8573.64 8505 O0 8653.08 8585 O0 8733.77 8665 O0 8814.92 8746 O0 8896.30 8828 O0 8978.49 8910 O0 9061.53 8993 11900.00 9144.71 9076 39 39 0 64 37 55 08 36 51 77 35 40 92 35 51 30 35 12 49 34 10 53 33 49 71 33 40 N 65 14 E 6706 21 N 64 30 E 6769 N 63 22 E 6830 N 62 5 E 689O N 61 9 E 6948 N 62 44 E 7005 N 62 11E 7062 N 61 30 E 7118 N 6O 47 E 7172 N 60 39 E 7226 08 51 22 04 34 44 25 71 84 1 11 0 95 1 39 1 77 0 71 0 94 0 83 0 97 1 19 0 O0 1969 89 N 6410 52 E 6706.36 N 72 55 E 1996 2024 2052 2080 2107 2134 2161 2188 2215 88 N 6468 20 N 6524 03 N 6577 19 N 6629 58 N 6681 39 N 6733 25 N 6783 23 N 6832 42 N 6880 06 E 6769.29 N 72 51 E O0 E 6830.81 N 72 46 E 99 E 6890.63 N 72 40 E 91 E 6948.59 N 72 35 E 51E 7006.03 N 72 30 E 08 E 7063.29 N 72 25 E 30 E 7119.28 N 72 20 E 06 E 7173.94 N 72 14 E 42 E 7228.29 N 72 9 E COMPUTATION DATE: 23-AUG-92 PAGE 4 ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 18-AUG-1992 KELLY BUSHING ELEVATION: 68.00 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASL~ED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN FEET DEG/1OO FEET FEET FEET DEG 12000.00 9227.95 9159.95 33 40 N 60 39 E 7280.92 12013.00 9238.77 9170.77 33 40 N 60 39 E 7287.95 0.00 2242.59 N 6928.72 E 7282.61 N 72 4 E 0.00 2246.12 N 6935.00 E 7289.67 N 72 3 E COMPUTATION DATE: 23-AUG-92 PAGE 5 ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 18-AUG-1992 KELLY BUSHING ELEVATION: 68,00 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 1OO0 FEET OF MEASURED DEPTH TEUE SUB-SEA COURSE MEASUEED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG' RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOLA'H EAST/WEST DIST. AZIMUTH FEET DEG/IOO FEET FEET FEET DEG MIN 0 O0 1000 2000 3000 4000 5000 6O00 7000 8000 9000 0 O0 O0 990 O0 1874 O0 2640 O0 3354 O0 4082 O0 4807 O0 5535 O0 6239 O0 6937 -68 O0 36 922 18 1806 77 2572 77 3286 55 4014 32 4739 51 5467 03 6171 O1 6869 0 0 36 18 16 18 35 11 77 44 58 77 43 26 55 42 52 32 43 41 51 42 55 03 47 28 01 43 10 N 0 0 E N 75 8 E 86 N 73 56 E 546 N 71 23 E 1186 N 71 16 E 1886 N 72 8 E 2571 N 76 14 E 3259 N 78 15 E 3942 N 72 7 E 4652 N 74 18 E 5367 0 O0 90 23 68 14 12 51 84 14 34 0 O0 4 21 0 62 0 77 0 20 0 40 0 92 0 52 0 52 0 97 0 O0 N 21 141 311 539 766 947 1096 1273 1500 0 O0 E 71N 84 12 N 527 16 N 1145 47 N 1807 74 N 2454 54 N 3118 02 N 3787 59 N 4474 09 N 5153 0.00 N 0 0 E 22 E 86.97 N 75 33 E 95 E 546.48 N 75 2 E 58 E 1187 09 N 74 48 E 35 E 1886 14 N 73 23 E 30 E 2571 28 N 72 39 E 77 E 3259 53 N 73 6 E 64 E 3943 03 N 73 52 E 90 E 4652 60 N 74 7 E 64 E 5367 52 N 73 46 E 10000.00 7668.34 7600.34- 41 19 11000.00 8418.18 8350.18 39 53 12000.00 9227.95 9159.95 33 40 12013.00 9238.77 9170.77 33 40 N 67 48 E 6048.42 N 65 14 E 6706.21 N 60 39 E 7280.92 N 60 39 E 7287.95 0.91 1.11 O. O0 O. O0 1714.93 N 5800.25 E 6048,46 N 73 32 E 1969.89 N 6410.52 E 6706.36 N 72 55 E 2242.59 N 6928.72 E 7282.61 N 72 4 E 2246.12 N 6935.00 E 7289.67 N 72 3 E COMPUTATION DATE' 23-AUG-92 PAGE 6 ARCO ALASKA, INC. D.S. 16-31 PRUDHOE 8AY NORTH SLOPE, ALASKA DATE OF SURVEY' 18-AUG-1992 KELLY BUSHING ELEVATION' 68.00 ET ENGINEER' K. PORTER INTERP0~TED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED YERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0 O0 68 O0 168 O0 268 O0 368 O0 468 O0 568 06 668 57 769 89 872 44 0 O0 68 O0 168 O0 268 O0 368 O0 468 O0 568 O0 668 O0 768 O0 868 O0 -68 O0 0 O0 100 O0 200 O0 3OO 400 50O 600 700 8OO 0 0 N 0 0 E 0 0 N 0 0 E 0 14 S 43 27 E 0 12 S 79 3 W O0 0 13 S 20 7 W O0 0 25 S 34 10 E O0 3 32 N 79 41 E O0 7 28 N 77 14 E O0 11 9 N 75 5 E O0 14 42 N 72 43 E 0 O0 0 O0 -0 14 -0 22 -0 55 -0 73 2 29 12 16 28 30 50 94 0 O0 0 O0 O. 06 0 1S 0 15 2 74 3 92 2 79 3 74 4 04 o00n 0 O0 n 0 32S 0 50S 0 62S I 04S 0 73S 129 N SIgN 11 40 N 0 O0 E 000 E 0 05W 0 08 W 0 39 W 045W 2 61 E 12 31 E 27 99 E 49 76 E 0 O0 N 0 0 E 0 0 0 0 2 12 28 51 O0 N 0 0 E 33 S 8 22 W 51 S 8 53 W 73 S 31 55 W 13 S 23 29 W 71 S 74 24 E 38 N 84 2 E 47 N 79 30 E 05 N 77 5 E 976 1082 1189 1298 1408 1521 1634 1750 1870 1992 968 O0 30 1068 57 1168 25 1268 76 1368 15 1468 81 1568 80 1668 43 1768 45 1868 900.00 17 23 O0 1000.00 20 10 O0 1100.00 22 9 O0 1200.00 24 5 O0 1300.00 26 28 O0 1400,00 27 37 O0 1500.00 29 27 O0 1600.00 31 SO O0 1700.00 34 33 O0 1800.00 35 9 N 74 11E N 77 21E N 77 27 E N 75 10 E N 74 18 E N 74 31E N 74 48 E N 74 14 E N 73 59 E N 73 56 E 79 71 114 15 152 84 195 33 242 33 293 61 347 60 406 34 471 97 541 89 3 71 2 O5 I 71 2 13 2 11 0 77 I 60 2 81 I 46 0 55 19 81 N 28 36 46 58 72 86 102 120 139 77 28 E 11 n 110 34 n 148 44 N 190 88 N 235 71N 284 92 N 336 60 N 393 59 N 456 92 N 523 79 78 N 75 37 E 75 E 114 67 E 153 O0 E 195 34 E 242 72 E 293 83 E 347 46 E 406 57 E 472 77 E 542 26 N 75 45 E 04 N 76 16 E 59 N 76 16 E 59 N 75 57 E 86 N 75 40 E 86 N 75 32 E 61 N 75 23 E 23 N 75 12 E 14 N 75 3 E 2115 13 1968 O0 1900 O0 35 47 2241 2372 2503 2633 2764 2898 3038 3180 3321 54 2068 33 2168 35 2268 28 2368 04 2468 54 2568 56 2668 01 2768 20 2868 O0 2000 O0 2100 O0 2200 O0 2300 O0 2400 O0 2500 O0 2600 O0 2700 O0 2800 N 74 20 E O0 39 38 N 75 25 E 690 O0 40 11 N 75 58 E 774 O0 40 13 N 75 27 E 859 O0 39 36 N 75 36 E 941 O0 40 45 N 74 37 E 1026 O0 43 16 N 72 23 E 1116 O0 45 8 N 71 15 E 1213 O0 44 56 N 70 57 E 1313 O0 44 54 N 70 45 E 1413 612 95 20 42 O0 89 08 O1 96 92 52 1 90 1 85 0 45 0 64 0 75 2 01 2 12 0 43 0 26 0 14 159.40 N 592 12 E 613 20 N 74 56 E 179 60 N 666 2OO 221 241 263 289 319 352 385 18 N 748 17 N 83O 88 N 910 33 N 992 16 N 1078 91N 1171 37 N 1266 10 N 1360 71E 69O 46 E 774 47 E 859 80 E 942 26 E 1026 40 E 1116 43 E 1214 06 E 1314 22 E 1413 48 n 74 55 E 77 N 75 2 E 42 N 75 5 E 37 N 75 8 E 61 N 75 8 E 5O N 74 59 E 33 N 74 44 E 19 N 74 27 E 69 N 74 12 E 3462 47 2968 O0 2900 O0 44 59 3603 3742 3880 4018 4156 4295 4434 4571 58 3068 65 3168 57 3268 22 3368 51 3468 62 3568 29 3668 O0 3000 O0 44 34 O0 3100 O0 43 35 O0 3200 O0 43 26 O0 3300 O0 43 28 O0 3400 O0 43 52 O0 3500 O0 44 11 O0 3600.00 43 33 64 3768.00 3700.00 43 0 4708.23 3868.00 3800.00 42 57 N 70 37 E 1513 18 N 70 40 E 1612 N 71 16 E 1709 N 71 18 E 1804 N 71 16 E 1898 N 70 59 E 1994 N 70 I E 2090 N 70 7 E 2186 N 7O 15 E 2280 N 70 30 E 2373 64 19 13 66 11 69 60 62 55 0 11 I 07 0 81 0 34 0 38 0 38 0 24 0 46 0 31 0 13 418 14 N 1454 37 E 1513 28 N 73 58 E 451 482 513 5:,43 574 606 639 671 702 17 N 1548 77 N 1639 11N 1729 50 N 1819 34 N 1909 68 N 2000 53 N 2091 40 N 2179 70 N 2267 29 E 1612 62 E 1709 64 E 1804 21E 1898 61E 1994 74 E 209O 02 E 2186 62 E 2280 24 E 2373 69 N 73 45 E 22 N 73 36 E 14 N 73 29 E 66 N 73 22 E 11 N 73 16 E 70 N 73 8 E 64 N 73 0 E 68 N 72 53 E 64 N 72 47 E ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA COMPUTATION DATE: 23-AUG-92 PAGE 7 DATE OF SURVEY: 1B-AUG-1992 KELLY BUSHING ELEVATION: 68.00 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPAR'rURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG 4844.41 3968.00 3900 O0 42 26 4980 15 4068.00 4000 O0 42 50 5116 5252 5388 5526 5666 5806 5945 6083 62 4168,00 4100 O0 42 46 26 4268.00 4200 O0 42 23 64 4368.00 4300 O0 43 3 62 4468,00 4400 O0 44 8 84 4568.00 4500 O0 44 35 58 4668.00 4600.00 44 1 47 4768.00 4700.00 43 58 32 4868.00 4800.00 42 59 N 70 58 E 2465 89 N 72 0 E 2557 N 72 23 E 2650 N 73 25 E 2742 N 74 22 E 2834 N 75 23 E 2929 N 76 16 E 3028 N 76 21E 3125 N 76 12 E 3221 N 76 19 E 3316 62 47 10 83 87 O5 53 79 53 0 45 0 64 0 57 0 77 0 32 I 2O 0 53 0 92 0 21 0 45 733 25 N 2354.48 E 2466.02 N 72 42 E 762 790 817 843 868 892 915 938 961.08 N 3174 58 N 2441.46 E 2557.79 N 72 39 E 89 N 2529 90 E 2650.64 N 72 38 E 91 N 2617 47 E 2742.28 N 72 39 E 67 N 2706 55 E 2834.99 N 72 41 E 73 N 2798 26 E 2930.01 N 72 45 E 63 N 2893 59 E 3028.14 N 72 51 E 59 N 2988 47 E 3125.58 N 72 58 E 54 N 3082 08 E 3221.81 N 73 4 E 24 E 3316.54 N 73 9 E 6219.08 4968 O0 4900 O0 41 53 6352.76 5068 6489.97 5168 6629.45 5268 6767.78 5368 6907.24 5468 7044.30 5568 7181.47 5668 7321.95 5768 O0 5000 O0 5100 O0 5200 O0 5300 O0 5400 O0 5500 O0 5600 O0 5700 7463.15 5868.00 5800 O0 41 58 O0 44 14 O0 43 32 O0 44 18 O0 43 43 O0 42 44 O0 44 7 O0 45 4 O0 44 52 N 76 51 E 3408.21 N 77 27 E 3496.72 N 78 2 E 3590.36 N 78 15 E 3687 26 N 77 33 E 3782 50 N 77 49 E 3879 44 N 78 22 E 3972 83 N 78 I E 4066 37 N 76 49 E 4164 76 N 75 44 E 4264 33 I 15 I 62 I 25 I 49 I O7 I 39 0 49 I 37 0 77 1 18 982.49 N 3263 53 E 3408 21 N 73 15 E 1002 26 N 3350 1021 1042 1061 1082 1102 1121 1142 1166 97 N 3441 15 N 3536 78 N 3630 85 N 3725 12 N 3817 24 N 39O9 72 N 4005 41N 4102 O1E 3496 85 E 3590 97 E 3687 51E 3782 4O E 3879 12 E 3973 04 E 4066 33 E 4165 17 E 4264 73 N 73 21E 37 N 73 28 E 3O N 73 35 E 59 N 73 42 E 58 N 73 48 E 05 N 73 54 E 67 N 74 0 E 15 N 74 5 E 77 N 74 8 E 7605 84 5968 O0 5900.00 45 56 7748 7894 8042 8190 8335 8480 8625 8766 8905 76 6068 70 6168 86 6268 09 6368 63 6468 75 6568 32 6668 93 6768 31 6868 O0 6000.00 45 29 O0 6100.00 47 35 O0 6200.00 47 30 O0 6300.00 46 54 O0 6400.00 46 27 O0 6500.00 46 29 O0 6600.00 45 55 O0 6700.00 44 9 O0 6800.00 43 23 N 74 19 E 4366 06 N 74 27 E 4468 N 72 41E 4574 N 71 52 E 4683 N 71 23 E 4791 N 70 27 E 4897 N 69 55 E 5002 N 70 38 E 5106 N 73 12 E 5206 N 73 17 E 5302 15 41 72 73 38 39 63 86 49 0 82 I 05 0 63 0 76 0 78 0 34 0 35 0 66 1 17 0 22 1192.61 N 4200 52 E 4366 54 N 74 9 E 1219.99 N 4298 1250.11 N 4400 1283.37 N 4504 1317.43 N 4607 1352.05 N 4707 1387.65 N 4806 1423.18 N 4904 1454.42 N 4999 1481.88 N 5091 89 E 4468 79 E 4574 94 E 4684 48 E 4792 40 E 4897 35 E 5002 52 E 5106 79 E 5207 40 E 5302 65 N 74 9 E 90 N 74 9 E 18 N 74 6 E 13 N 74 3 E 72 N 73 58 E 66 N 73 54 E 84 N 73 49 E 04 N 73 47 E 67 N 73 46 E 9042.53 6968 O0 6900 O0 43 19 9180.43 7068 9319 06 7168 9457 96 7268 9595 81 7368 9731 66 7468 9866 03 7568 9999 54 7668 10132 96 7768 10267 79 7868 O0 7000 O0 43 42 O0 7100 O0 43 58 O0 7200 O0 43 51 O0 7300 O0 43 0 O0 7400 O0 42 11 O0 7500 O0 41 41 O0 7600 O0 41 19 O0 7700.00 41 55 O0 7800.00 42 28 N 74 33 E 5396.46 N 73 54 E 5491.40 N 73 16 E 5587.41 N 72 4 E 5683.81 N 70 57 E 5778 63 N 69 47 E 5870 47 N 68 52 E 5959 99 N 67 48 E 6048 12 N 68 35 E 6136 06 N 69 9 E 6226 22 0 45 0 28 0 50 0 84 0 81 0 68 0 59 0 92 0 62 0 28 1507.90 N 5181.70 E 5396 65 N 73 46 E 1533 71 N 5273.08 E 5491 60 N 73 47 E 1560 77 N 5365.19 E 5587 60 N 73 47 E 1589 43 N 5457.24 E 5683 99 N 73 46 E 1619 51 N 5547.22 E 5778 79 N 73 43 E 1650 38 N 5633.84 E 5870 59 N 73 40 E 1682 06 N 5717.80 E 5960 08 N 73 36 E 1714 82 N 5799.97 E 6048.16 N 73 32 E 1747.85 N S881.88 E 6136.08 N 73 27 E 1780.54 N 5966.20 E 6226.23 N 73 23 E COMPUTATION DATE: 23-AUG-92 PAGE 8 ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 18-AUG-1992 KELLY BUSHING ELEVATION: 68.00 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 10402.79 7968 O0 7900.00 41 53 10536.50 8068 10670.19 8168 10802,97 8268 10934.45 8368 11064.68 8468 11192.84 8568 11318.61 8668 11442.11 8768 11565.32 8868 O0 8000.00 41 26 O0 8100.00 41 19 O0 8200.00 40 47 O0 8300.00 40 7 O0 8400.00 39 22 O0 8500.00 38 0 O0 8600.00 36 36 O0 8700.00 35 42 O0 8800.00 35 25 N 67 53 E 6316,59 N 66 42 E 6404.84 N 67 10 E 6493.07 N 66 11 E 6579.84 N 65 14 E 6664.44 N 64 47 E 6747.02 N 63 27 E 6826.16 N 61 51 E 6901.13 N 61 50 E 6972.03 N 62 30 E 7042.76 0 92 I O6 0 61 0 56 0 2O I 46 I 42 I 5O 2 73 0 90 1813.72 N 6050 59 E 6316 59 N 73 19 E 1848.18 N 6132 40 E 6404 1882.52 N 6214 20 E 6493 1917 07 N 6294 43 E 6579 1952 23 N 6372 21 E 6664 1987 32 N 6447 90 E 6747 2022 23 N 6520 05 E 6826 2057 26 N 6587.81 E 6901 2091 94 N 6651.43 E 6972 2125 08 N 6715.33 E 7043 85 N 73 14 E O9 N 73 9 E 89 N 73 4 E 56 N 72 58 E 21 N 72 52 E 45 N 72 46 E 56 N 72 39 E 64 N 72 32 E 55 N 72 26 E 11687.31 8968.00 8900.00 34 17 11807.79 9068.00 9000.00 33 51 11927.98 9168.00 9100.00 33 40 12013.00 9238.77 9170.77 33 40 N 61 36 E 7111,26 N 60 43 E 7176.95 N 60 39 E 7241.97 N 60 39 E 7287.95 O. 98 0.59 O. O0 O. O0 2157.85 N 6777.02 E 7112.27 N 72 20 E 2190.35 N 6835.85 E 7178.19 N 72 14 E 2223.02 N 6893.93 E 7243.49 N 72 8 E 2246.12 N 6935.00 E 7289.67 N 72 3 E ARCO ALASKA, INC. D .S. 16-31 PRUDHOE BaY NORTH SLOPE, ALASKA MARKER LAST READING (}CT DRILLERS TD COMPUTATION DATE: 23-AUG-g2 PAGE 9 DATE OF SURVEY: 18-AUG-1992 KELLY BUSHING ELEVATION: 68.00 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR CHOSEN HORIZONS SURFACE LOCATION = 1800' SNL & 1282' EWL, SEC24 TION R15E MEASURED DEPTH TVD RECTANGULAR COORDINATES BELOW KB FROM KB SUB-SEA NORTH/SOUTH EAST/WEST 11830.20 9086.62 9018.62 2196.46 N 6846.71 E 12013.00 9238.77 9170.77 2246.12 N 6935.00 E ARCO ALASKA, INC. D.S. 16-31 PRUDHOE BAY NORTH SLOPE, ALASKA MARKER LAST READING GCT DRILLERS TD COMPUTATION DATE: 23-AUG-g2 PAGE 10 DATE OF SURVEY: 18-AUG-1992 KELLY BUSHING ELEVATION: 68.00 FT ENGINEER: K. PORTER ************ STRATIGRAPHIC SUMMARY SURFACE LOCATION = 1800' SNL & 1282' EWL, SEC24 TION RISE MEASURED DEPTH TVD RECTANGULAR COORDINATES BELOW KB FROM KB SUB-SEA NORTH/SOUTH EAST/WEST 11830.20 9086.62 9018.62 2196.46 N 6846.71E 12013.00 9238.77 9170.77 2246.12 N 6935.00 E FINAL WELL LOCATION AT TD: TRUE SUB-SEA MEASURED VERTICAL VERTICAL DEPTH DEPTH DEPTH 12013.00 9238.77 9170.77 HORIZONTAL DEPARTURE DISTANCE AZIMUTH FEET DEG MIN 7289.67 N 72 3 E DIRECTIONAL SURVEY C~NTI~IY · I~UN AJ=ICO ALAS~, INC. PRUDHOE BAY D.8. 18-31 UAA ONE 11 - AUI - II FElT ~ELL': ' D.S. 16-3] (1800' SNL, 1282' EWL, SEC 24, TION, R15E) HORIZONTAL PROJECTION WELL: D.ff. 16-31 (1800' SNL, 1282' EWL, SEC 24, TION, R15E) VERTICAL PROdECTION · -4-+.~---!--I.-..:?-~. ++.++. ,.++++ 44-PP 4-~-¢-':..-..-4--+¢4- ~-:.-----i ..... i---~'.." ....... i...i.-i-i ..... ~..~4...~.....~.~-.~..~-..::'.-~...i...i. -4...i..4.~..!.-:.:.'..;-:...i.-:....~...~-~.. · .! ': . 4.~ .L .L ... :'. . ' : .: . ':.,: : _L ':-~ :' . 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": : ':"': ": ": ': ": ' ' ': ' : "":' : : ' :'~:"': : .... : ;"': ": .... ;'":"'" ..... ; .... :"';" ..4...i...'.k..'2-.~4-+4.~:4:} .'-{..'4..~4.. ~h4..4.-4.-¢,-| 4 .-+.+--!...~...,-.."-J.-.-~." q-..5-+-+-4... ++++.:- 4.¢.'.:-!.-~..H,~-+ :--k..l+..-H.-+-.'.-k,..-."..4.-.".-.-! ......... {--~-q .... ~-+.-H-i ...... k-!..-~--'~ ...... i-k-..:-+'.-..'-+-.'H...~4-.'+'i-+ +e-.k+-. ............... ,1 .................... '- ' ...... ' ' ' ' ' .... ' ' ' ' : : ; : ;]Ir: ~' : : : , : - · . -. ? : : , : : : ; ' : : : : : : : : i : : : : : : : : : : : . i ' : t : : : : : I . ' : : * : r I · : : : .-4-.+.~--*-.,.i..-- ~ ~. : ~{:: *; +.,...+-4.- ..+-+: ,..f-~-- .-+.-.r.+.~..~ .-+---.4.--}--.--;4 y t..~ . ! L ~ ~ .L [ :. ~ 4.-[-...~..~4.+.~.4.4-4.~...~.+-4-. +..'&-.~..+-~..-.'...~-,..+.+.4-, ..... H.-~-'+.+.'I.-.~'--H.'½.-'~ ....... H-.;'-"~"+"t'"}"~"4"4"',"r'~-~'4 ..... ,.-4--.'.----:.. .... · '' ' ' ' 1' ' i ................. ' ' ' ' ~ ' ~ ' ' :' ' : : ' ' : ' ' ~ : : : : /: ~ :~ : ~: : ~ : : : : : : : : ~ : : : ~ I i i : : ~ ~ i i i : : · ~ ! ! !' ~ i i ] ! : !' ' ~ : : ! : ~ ~ : : : : .- .','.4.-+-~.-. -~.-4-J4-~. · i-=::::~ ~.-+.+.+-~ ~.-~,~,-- ..{-+~..i.-~ -.+...+...+-? ri--~..:--~ "T'~'-.."~ -;-'.."-:-~' ".?*"..~'?- '~'T"~"?" ,'~.'-~-'.,' ..... ??"T':-- 'T'T'~.'' ~F'Y'-i"T" :: : : :~ t~ ~ ~ ; : m:{ ii .'.m ~ ii :1 i : i. ~: ~/ i . i ~ . . · ~ ......... ~ ............. : 6324/6116 Nielson Way · Anchorage, AK 99518 Phone: (907) 563-3269/Fax: (907) 563-5865 Phone: (907) 562-2646/Fax: (907) 561-1358 EASTMAN TELECO MWD SURVEY WELL #16-31 PRUDHOE BAY EASTMAN TELECO JOB # 1117 Eastman Teleco appreciates the opportunity to provide our services. Please find attached a copy of the directional surveys in each of the following formats: · MWD Survey · Composite 100' MD Interpolated · Composite 100' TVD Interpolated MIC OI:ILHED Date ([/[ ~,~ .... OCT - 6 t992 ,0JJ & Gas Cons. (;orm~ission ~nchorage ARCO ALASKA, Inc. D.S. 16 31 slot #31 Prudhoe Bay North Slope, Alaska SURVEY LISTING Your ref : PMSS <0-11900'> Our ref : svy3382 Other ref : Date printed : il-Aug-92 Date created : il-Aug-92 Last revised : Il-Aug-92 Field is centred on n70 16 17.459,w148 34 30.29 Structure is centred on 0.000,0.000,999.00000,N MWD SURVEY LISTING ARCO ALASKA, Inc. SURVEY LISTING Page 1 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O 0 R D I N A T E S Deg/100Ft Sect 0.00 0.00 0.00 0.00 0.00 N 0.00 E 0.00 0.00 415.00 0.40 263.40 415.00 0.17 S 1.44 W 0.10 -1.43 500.00 1.60 92.20 499.99 0.25 S 0.55 W 2.35 -0.59 593.00 4.80 80.90 592.83 0.32 N 4.59 E 3.49 4.51 685.00 8.50 74.90 684.20 2.70 N 14.96 E 4.09 15.14 777.00 11.80 76.70 774.74 6.64 N 30.68 E 3.60 31.34 869.00 14.60 73.50 864.31 12.10 N 50.96 E 3.14 52.33 962.00 17.80 73.20 953.60 19.53 N 75.81 E 3.44 78.27 1054.00 20.50 75.60 1040.50 27.61 N 104.88 E 3.06 108.44 1146.00 21.50 79.10 1126.40 34.80 N 137.05 E 1.74 141.35 1239.00 23.70 74.20 1212.26 43.12 N 171.77 E 3.11 177.03 1328.00 24.40 73.50 1293.53 53.21 N 206.61 E 0.85 213.30 1423.00 27.20 72.10 1379.05 65.46 N 246.09 E 3.02 254.63 1517.00 27.70 73.90 1462.47 78.12 N 287.53 E 1.03 297.94 1608.00 28.70 74.90 1542.67 89.68 N 328.95 E 1.22 340.94 1706.00 30.40 73.90 1627.92 102.68 N 375.49 E 1.81 389.27 1801.00 33.80 73.20 1708.38 116.99 N 423.90 E 3.60 439.74 1927.00 36.20 73.20 1811.59 137.88 N 493.08 E 1.90 511.99 2022.00 35.40 74.20 1888.64 153.48 N 546.41 E 1.04 567.56 2115.00 35.30 74.20 1964.50 168.13 N 598.19 E 0.11 621.36 2211.00 39.00 74.60 2041.00 183.71 N 654.02 E 3.86 679.33 2305.00 40.50 76.30 2113.27 198.79 N 712.19 E 1.97 739.42 2398.00 39.90 75.30 2184.30 213.51 N 770.39 E 0.95 799.42 2491.00 40.30 74.90 2255.44 228.92 N 828.28 E 0.51 859.32 2584.00 39.30 75.30 2326.89 244.23 N 885.80 E 1.11 918.84 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 2 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 2675.00 40.10 75.60 2396.91 258.83 N 942.07 E 0.90 976.96 2770.00 40.80 75.30 2469.20 274.31 N 1001.72 E 0.76 1038.58 2863.00 42.50 72.80 2538.69 291.32 N 1061.13 E 2.56 1100.38 2956.00 44.50 71.80 2606.15 310.79 N 1122.11 E 2.27 1164.35 3049.00 45.00 70.70 2672.20 331.84 N 1184.10 E 0.99 1229.72 3143.00 44.70 71.40 2738.84 353.36 N 1246.80 E 0.61 1295.91 3238.00 44.80 71.40 2806.31 374.70 N 1310.19 E 0.10 1362.70 3332.00 44.70 72.10 2873.06 395.42 N 1373.04 E 0.53 1428.81 3426.00 44.90 71.70 2939.76 416.00 N 1436.00 E 0.37 1494.99 3518.00 44.80 71.10 3004.99 436.69 N 1497.49 E 0.47 1559.78 3610.00 44.40 71.40 3070.50 457.46 N 1558.66 E 0.49 1624.29 3704.00 43.60 71.80 3138.11 478.07 N 1620.62 E 0.90 1689.51 3797.00 43.30 71.80 3205.63 498.05 N 1681.38 E 0.32 1753.41 3892.00 43.20 71.10 3274.82 518.76 N 1743.09 E 0.52 1818.42 3985.00 43.20 71.40 3342.62 539.22 N 1803.37 E 0.22 1881.99 4128.00 43.70 71.80 3446.43 570.26 N 1896.69 E 0.40 1980.22 4239.00 44.50 70.00 3526.15 595.54 N 1969.67 E 1.34 2057.32 4332.00 43.90 70.40 3592.82 617.50 N 2030.68 E 0.71 2121.98 4427.00 43.50 70.40 3661.50 639.52 N 2092.51 E 0.42 2187.46 4520.00 43.20 70.70 3729.13 660.78 N 2152.70 E 0.39 2251.16 4614.00 43.00 70.70 3797.76 682.01 N 2213.32 E 0.21 2315.26 4709.00 42.90 71.10 3867.30 703.19 N 2274.49 E 0.30 2379.88 4801.00 42.40 71.10 . 3934.96 723.38 N 2333.46 E 0.54 2442.11 4895.00 42.30 71.80 4004.44 743.52 N 2393.49 E 0.51 2505.35 4990.00 43.00 72.50 4074.31 763.25 N 2454.76 E 0.89 2569.67 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 3 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 5083.00 42.90 72.80 4142.38 782.15 N 2515.24 E 0.24 2633.00 5177.00 42.50 72.80 4211.46 801.00 N 2576.13 E 0.42 2696.73 5271.00 42.10 73.90 4280.99 819.13 N 2636.74 E 0.90 2759.98 5366.00 43.00 74.60 4350.97 836.56 N 2698.57 E 1.07 2824.22 5460.00 43.40 74.60 4419.50 853.65 N 2760.61 E 0.42 2888.57 5555.00 44.70 75.60 4487.78 870.62 N 2824.44 E 1.55 2954.61 5648.00 44.40 76.70 4554.05 886.24 N 2887.78 E 0.89 3019.82 5742.00 44.20 77.40 4621.33 900.96 N 2951.76 E 0.56 3085.40 5836.00 43.90 76.70 4688.89 915.60 N 3015.46 E 0.61 3150.68 5930.00 43.90 76.00 4756.62 930.98 N 3078.79 E 0.52 3215.82 6025.00 42.90 76.70 4825.64 946.39 N 3142.22 E 1.17 3281.05 6118.00 42.80 76.30 4893.83 961.16 N 3203.72 E 0.31 3344.25 6212.00 42.10 75.30 4963.19 976.72 N 3265.23 E 1.03 3407.67 6306.00 41.10 77.00 5033.48 991.66 N 3325.81 E 1.60 3470.04 6400.00 43.20 78.80 5103.17 1004.86 N 3387.49 E 2.58 3532.99 6494.00 44.60 78.80 5170.90 1017.52 N 3451.42 E 1.49 3597.97 6588.00 43.80 78.10 5238.29 1030.64 N 3515.63 E 1.00 3663.34 6683.00 43.20 78.80 5307.20 1043.74 N 3579.70 E 0.81 3728.56 6778.00 44.40 77.40 5375.77 1057.30 N 3644.03 E 1.62 3794.17 6874.00 43.90 77.70 5444.65 1071.72 N 3709.33 E 0.56 3860.93 6969.00 43.10 78.80 5513.56 1085.04 N 3773.35 E 1.16 3926.17 7065.00 42.10 79.10 5584.22 1097.50 N 3837.12 E 1.06 3990.94 7158.00 44.20 77.70 ~ 5652.07 1110.30 N 3899.42 E 2.48 4054.38 7251.00 44.30 76.70 5718.69 1124.68 N 3962.70 E 0.76 4119.19 7346.00 45.00 77.00 5786.27 1139.86 N 4027.71 E 0.77 4185.88 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 4 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 7439.00 44.20 77.00 5852.49 1154.55 N 4091.34 E 0.86 4251.11 7532.00 45.40 75.30 5918.48 1170.25 N 4154.95 E 1.82 4316.61 7625.00 45.60 75.30 5983.67 1187.08 N 4219.11 E 0.22 4382.93 7722.00 44.50 77.40 6052.20 1203.29 N 4285.81 E 1.91 4451.53 7819.00 47.20 72.50 6119.78 1221.42 N 4352.96 E 4.57 4521.08 7912.00 47.50 72.50 6182.79 1241.99 N 4418.20 E 0.32 4589.44 8004.00 47.50 71.40 6244.94 1263.00 N 4482.69 E 0.88 4657.21 8099.00 47.10 72.40 6309.37 1284.69 N 4549.05 E 0.88 4726.96 8192.00 46.70 71.80 6372.91 1305.56 N 4613.66 E 0.64 4794.82 8286.00 46.40 71.10 6437.56 1327.27 N 4678.36 E 0.63 4862.97 8380.00 46.30 70.40 6502.44 1349.70 N 4742.57 E 0.55 4930.85 8473.00 46.40 70.00 6566.64 1372.49 N 4805.88 E 0.33 4997.97 8566.00 46.00 70.40 6631.01 1395.23 N 4869.04 E 0.53 5064.92 8661.00 45.00 72.50 6697.60 1416.79 N 4933.27 E 1.90 5132.58 8756.00 44.20 74.20 6765.24 1435.91 N 4997.17 E 1.51 5199.27 8848.00 43.40 72.80 6831.64 1453.99 N 5058.22 E 1.36 5262.94 8942.00 43.10 73.90 6900.11 1472.44 N 5119.92 E 0.86 5327.33 9037.00 43.20 72.80 6969.42 1491.06 N 5182.17 E 0.80 5392.29 9132.00 43.50 73.90 7038.50 1509.74 N 5244.65 E 0.86 5457.49 9227.00 43.70 73.50 7107.30 1528.13 N 5307.53 E 0.36 5523.00 9322.00 43.40 73.90 7176.15 1546.50 N 5370.35 E 0.43 5588.45 9413.00 43.90 72.50 7242.00 1564.66 N 5430.48 E 1.20 5651.25 9509.00 43.50 72.50 7311.40 1584.60 N 5493.73 E 0.42 5717.54 9604.00 42.90 71.80 7380.66 1604.53 N 5555.63 E 0.81 5782.52 9698.00 42.20 70.00 7449.91 1625.33 N 5615.70 E 1.49 5845.97 Ail data is in feet unless otherwise stated COordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 5 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 9793.00 41.80 69.30 7520.50 1647.43 N 5675.30 E 0.65 5909.32 9888.00 41.60 69.00 7591.44 1669.92 N 5734.36 E 0.30 5972.26 9982.00 41.20 67.90 7661.95 1692.75 N 5792.17 E 0.88 6034.10 10075.00 41.50 68.20 7731.76 1715.72 N 5849.16 E 0.39 6095.17 10169.00 41.70 69.00 7802.06 1738.49 N 5907.26 E 0.60 6157.26 10265.00 42.40 68.60 7873.34 1761.74 N 5967.21 E 0.78 6221.26 10358.00 42.10 67.90 7942.18 1784.91 N 6025.29 E 0.60 6283.44 10453.00 41.60 67.20 8012.95 1809.11 N 6083.87 E 0.72 6346.38 10548.00 41.50 67.90 8084.04 1833.18 N 6142.10 E 0.50 6408.95 10642.00 41.40 68.20 8154.50 1856.44 N 6199.82 E 0.24 6470.80 10736.00 41.00 67.50 8225.23 1879.78 N 6257.16 E 0.65 6532.32 10831.00 40.50 65.80 8297.20 1904.35 N 6314.09 E 1.28 6593.77 10926.00 39.90 65.80 8369.76 1929.49 N 6370.02 E 0.63 6654.41 11021.00 39.40 65.40 8442.90 1954.53 N 6425.23 E 0.59 6714.32 11117.00 38.60 63.70 8517.51 1980.48 N 6479.78 E 1.39 6773.86 11209.00 37.50 63.30 8589.96 2005.78 N 6530.52 E 1.22 6829.55 11299.00 36.00 62.30 8662.07 2030.38 N 6578.42 E 1.79 6882.31 11393.00 35.20 60.90 8738.50 2056.40 N 6626.55 E 1.21 6935.68 11486.00 35.70 62.60 8814.26 2081.93 N 6674.07 E 1.19 6988.32 11577.00 35.20 62.00 8888.39 2106.46 N 6720.80 E 0.67 7039.94 11669.00 34.30 60.90 8963.98 2131.52 N 6766.86 E 1.19 7091.06 11764.00 34.00 60.20 9042.60 2157.73 N 6813.30 E 0.52 7142.85 11858.00 33.70 61.60 9120.67 2183.20 N 6859.05 E 0.89 7193.78 11900.00 33.70 63.00 9155.61 2194.03 N 6879.68 E 1.85 7216.56 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. COMPOSITE 100' MD INTERPOLATED ARCO ALASKA, Inc. SURVEY LISTING Page 1 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. Depth Degrees Degrees Depth R E C T A N G U L A R Dogleg Vert C O O R D I N A T E S Deg/100Ft Sect 0.00 0.00 0.00 0.00 0.00 N 0.00 E 0.00 0.00 100.00 0.10 263.40 100.00 0.01 S 0.08 W 0.10 -0.08 200.00 0.19 263.40 200.00 0.04 S 0.33 W 0.10 -0.33 300.00 0.29 263.40 300.00 0.09 S 0.75 W 0.10 -0.75 400.00 0.38 263.40 400.00 0.15 S 1.34 W 0.10 -1.33 500.00 1.60 92.20 499.99 0.25 S 0.55 W 2.35 -0.59 600.00 5.08 80.14 599.80 0.42 N 5.19 E 4.09 5.11 700.00 9.04 75.28 699.02 3.29 N 17.17 E 3.60 17.42 800.00 12.50 75.77 797.23 7.79 N 35.38 E 3.14 36.17 900.00 15.67 73.39 894.23 14.40 N 58.72 E 3.44 60.43 1000.00 18.91 74.27 989.67 22.88 N 87.30 E 3.06 90.24 1100.00 20.99 77.39 1083.52 31.41 N 120.73 E 1.74 124.72 1200.00 22.76 76.14 1176.42 39.17 N 156.91 E 3.11 161.66 1300.00 24.18 73.72 1268.01 49.96 N 195.56 E 0.85 201.78 1400.00 26.52 72.41 1358.54 62.29 N 236.20 E 3.02 244.24 1500.00 27.61 73.58 1447.41 75.91 N 279.96 E 1.03 290.05 1600.00 28.61 74.81 1535.65 88.67 N 325.24 E 1.22 337.11 1700.00 30.30 73.96 1622.74 101.84 N 372.58 E 1.81 386.24 1800.00 33.76 73.21 1707.55 116.83 N 423.36 E 3.60 439.18 1900.00 35.68 73.20 1789.73 133.30 N 477.91 E 1.90 496.15 2000.00 35.58 73.96 1870.73 149.97 N 534.13 E 1.04 554.78 2100.00 35.32 74.20 1952.25 165.77 N 589.84 E 0.11 612.70 2200.00 38.58 74.56 2032.42 181.88 N 647.38 E 3.86 672.44 2300.00 40.42 76.21 2109.47 198.02 N 709.04 E 1.97 736.18 2400.00 39.91 75.29 2185.84 213.84 N 771.63 E 0.51 800.71 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 2 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : Il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 2500.00 40.20 74.94 2262.31 230.43 N 833.89 E 1.11 865.14 2600.00 39.44 75.35 2339.26 246.80 N 895.62 E 0.90 928.99 2700.00 40.28 75.52 2416.00 262.85 N 957.69 E 0.76 993.09 2800.00 41.34 74.48 2491.82 279.45 N 1020.75 E 2.56 1058.29 2900.00 43.29 72.39 2565.80 298.85 N 1085.16 E 2.27 1125.55 3000.00 44.74 71.28 2637.47 320.57 N 1151.42 E 0.99 1195.22 3100.00 44.84 71.08 2708.31 343.62 N 1218.13 E 0.61 1265.67 3200.00 44.76 71.40 2779.33 366.16 N 1284.82 E 0.10 1335.97 3300.00 44.73 71.86 2850.33 388.46 N 1351.63 E 0.53 1406.31 3400.00 44.84 71.81 2921.34 410.26 N 1418.58 E 0.37 1476.66 3500.00 44.82 71.22 2992.22 432.60 N 1485.49 E 0.47 1547.12 3600.00 44.44 71.37 3063.35 455.22 N 1552.03 E 0.49 1617.30 3700.00 43.63 71.78 3135.22 477.21 N 1618.00 E 0.90 1686.75 3800.00 43.30 71.78 3207.81 498.69 N 1683.33 E 0.52 1755.46 3900.00 43.20 71.12 3280.66 520.53 N 1748.27 E 0.22 1823.88 4000.00 43.25 71.44 3353.55 542.49 N 1813.11 E 0.40 1892.25 4100.00 43.60 71.72 3426.17 564.21 N 1878.33 E 0.40 1960.91 4200.00 44.22 70.63 3498.26 586.36 N 1944.00 E 1.34 2030.12 4300.00 44.11 70.26 3569.80 610.02 N 2009.74 E 0.71 2099.81 4400.00 43.61 70.40 3641.93 633.28 N 2074.98 E 0.42 2168.90 4500.00 43.26 70.64 3714.56 656.24 N 2139.78 E 0.39 2237.49 4600.00 43.03 70.70 3787.53 678.85 N 2204.31 E 0.21 2305.73 4700.00 42.91 71.06 3860.71 701.20 N 2268.69 E 0.30 2373.76 4800.00 42.40 71.10 3934.23 723.16 N 2332.82 E 0.54 2441.43 4900.00 42.34 71.84 4008.13 744.58 N 2396.69 E 0.89 2508.71 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. D.S. 16,31 Pxudhoe Bay,North Slope, Alaska Measured Inclin. Azimuth True Vert. Depth Degrees Degrees Depth SURVEY LISTING Page 3 Your ref : PMSS <0-11900'> Last revised : il-Aug-92 R E C T A N G U L A R Dogleg Vert C O O R D I N A T E S Deg/100Ft Sect 5000.00 42.99 72.53 4081.62 765.30 N 2461.26 E 0.24 2576.48 5100.00 42.83 72.80 4154.84 785.57 N 2526.29 E 0.42 2644.57 5200.00 42.40 73.07 4228.43 805.55 N 2590.98 ~E 0.90 2712.25 5300.00 42.37 74.12 4302.46 824.50 N 2655.48 E 1.07 2779.48 5400.00 43.14 74.60 4375.81 842.73 N 2720.96 E 0.42 2847.44 5500.00 43.95 75.03 4448.43 860.88 N 2787.27 E 1.55 2916.19 5600.00 44.55 76.13 4519.80 878.34 N 2855.09 E 0.89 2986.21 5700.00 44.29 77.09 4591.24 894.49 N 2923.18 E 0.56 3056.13 5800.00 44.01 76.97 4662.97 909.91 N 2991.12 E 0.61 3125.71 5900.00 43.90 76.22 4735.00 925.99 N 3058.60 E 0.52 3195.02 6000.00 43.16 76.51 4807.37 942.44 N 3125.62 E 1.17 3264.00 6100.00 42.82 76.38 4880.62 958.27 N 3191.84 E 0.31 3332.02 6200.00 42.19 75.43 4954.29 974.68 N 3257.44 E 1.03 3399.62 6300.00 41.16 76.89 5028.96 990.77 N 3321.97 E 1.60 3466.10 6400.00 43.20 78.80 5103.17 1004.86 N 3387.49 E 2.58 3532.99 6500.00 44.55 78.76 5175.17 1018.34 N 3455.56 E 1.00 3602.17 6600.00 43.72 78.19 5246.96 1032.35 N 3523.75 E 0.81 3671.62 6700.00 43.41 78.54 5319.57 1046.03 N 3591.13 E 1.62 3740.19 6800.00 44.28 77.47 5391.50 1060.65 N 3659.04 E 0.56 3809.52 6900.00 43.68 78.00 5463.42 1075.51 N 3726.92 E 1.16 3878.89 7000.00 42.78 78.90 5536.26 1089.12 N 3794.07 E 1.06 3947.22 7100.00 42.89 78.56 5610.03 1102.08 N 3860.32 E 2.48 4014.51 7200.00 44.24 77.25 5682.17 1116.65 N 3928.01 E 0.76 4083.62 7300.00 44.66 76.86 5753.65 1132.53 N 3996.12 E 0.77 4153.49 7400.00 44.54 77.00 5824.61 1148.42 N 4064.76 E 0.86 4223.87 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 4 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 7500.00 44.98 75.88 5895.93 1164.60 N 4132.96 E 1.82 4293.91 7600.00 45.55 75.30 5966.17 1182.55 N 4201.84 E 0.22 4365.08 7700.00 44.75 76.92 6036.54 1199.86 N 4270.75 E 1.91 4436.09 7800.00 46.65 73.42 6106.80 1217.35 N 4339.69 E 4.57 4507.20 7900.00 47.46 72.50 6174.68 1239.33 N 4409.76 E 0.32 4580.60 8000.00 47.50 71.45 6242.24 1262.06 N 4479.89 E 0.88 4654.27 8100.00 47.10 72.39 6310.05 1284.92 N 4549.74 E 0.64 4727.70 8200.00 46.67 71.74 6378.40 1307.38 N 4619.19 E 0.63 4800.63 8300.00 46.38 71.00 6447.22 1330.56 N 4687.95 E 0.55 4873.09 8400.00 46.32 70.31 6516.26 1354.56 N 4756.19 E 0.33 4945.28 8500.00 46.28 70.12 6585.28 1379.15 N 4824.25 E 0.53 5017.45 8600.00 45.64 71.14 6654.70 1403.26 N 4892.06 E 1.90 5089.25 8700.00 44.67 73.19 6725.25 1424.90 N 4959.54 E 1.51 5160.07 8800.00 43.82 73.54 6796.89 1444.40 N 5026.53 E 1.36 5229.84 8900.00 43.23 73.41 6869.48 1464.36 N 5092.35 E 0.86 5298.60 9000.00 43.16 73.23 6942.44 1483.66 N 5157.96 E 0.80 5366.98 9100.00 43.40 73.53 7015.27 1503.57 N 5223.52 E 0.86 5435.49 9200.00 43.64 73.61 7087.77 1522.85 N 5289.65 E 0.36 5504.36 9300.00 43.47 73.81 7160.18 1542.30 N 5355.82 E 0.43 5573.33 9400.00 43.83 72.70 7232.63 1561.96 N 5421.88 E 1.20 5642.25 9500.00 43.54 72.50 7304.88 1582.74 N 5487.82 E 0.42 5711.35 9600.00 42.92 71.83 7377.73 1603.68 N 5553.05 E 0.81 5779.80 9700.00 42.19 69.98 7451.39 1625.78 N 5616.96 E 0.65 5847.31 9800.00 41.78 69.28 7525.72 1649.08 N 5679.66 E 0.30 5913.97 9900.00 41.55 68.86 7600.41 1672.78 N 5741.78 E 0.88 5980.19 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 5 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 10000.00 41.26 67.96 7675.48 1697.21 N 5803.16 E 0.39 6045.89 10100.00 41.55 68.41 7750.48 1721.84 N 5864.56 E 0.60 6111.65 10200.00 41.92 68.87 7825.16 1745.92 N 5926.55 E 0.78 6177.84 10300.00 42.29 68.34 7899.21 1770.40 N 5989.14 E 0.60 6244.72 10400.00 41.88 67.59 7973.40 1795.55 N 6051.29 E 0.72 6311.35 10500.00 41.55 67.54 8048.11 1821.11 N 6112.66 E 0.50 6377.34 10600.00 41.44 68.06 8123.00 1846.09 N 6174.03 E 0.24 6443.17 10700.00 41.15 67.77 8198.09 1870.78 N 6235.29 E 0.65 6508.82 10800.00 40.66 66.36 8273.65 1896.18 N 6295.66 E 1.28 6573.81 10900.00 40.06 65.80 8349.83 1922.64 N 6354.78 E 0.63 6637.89 11000.00 39.51 65.49 8426.69 1948.98 N 6413.09 E 0.59 6701.14 11100.00 38.74 64.00 8504.24 1975.80 N 6470.24 E 1.39 6763.41 11200.00 37.61 63.34 8582.82 2003.32 N 6525.62 E 1.22 6824.16 11300.00 35.99 62.28 8662.88 2030.66 N 6578.94 E 1.21 6882.88 11400.00 35.24 61.03 8744.22 2058.36 N 6630.08 E 1.19 6939.61 11500.00 35.62 62.51 8825.64 2085.69 N 6681.31 E 0.67 6996.31 11600.00 34.97 61.73 8907.21 2112.69 N 6732.46 E 1.19 7052.85 11700.00 34.20 60.67 8989.61 2140.03 N 6782.09 E 0.52 7108.02 11800.00 33.88 60.73 9072.47 2167.64 N 6830.79 E 0.89 7162.37 11900.00 33.70 63.00 9155.61 2194.03 N 6879.68 E 1.85 7216.56 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. COMPOSITE 100' TVD INTERPOLATED ARCO ALASKA, Inc. D.S. 16,31 Prudhoe Bay,North Slope, Alaska SURVEY LISTING Page 1 Your ref : PMSS <0-11900'> Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. Depth Degrees Degrees Depth R E C T A N G U L A R Dogleg Vert C O O R D I N A T E S Deg/100Ft Sect 0.00 0.00 0.00 0.00 0.00 N 0.00 E 0.00 0.00 100.00 0.10 263.40 100.00 0.01 S 0.08 W 0.10 -0.08 200.00 0.19 263.40 200.00 0.04 S 0.33 W 0.10 -0.33 300.00 0.29 263.40 300.00 0.09 S 0.75 W 0.10 -0.75 400.00 0.38 263.40 400.00 0.15 S 1.34 W 0.10 -1.33 500.01 1.60 92.20 500.00 0.25 S 0.55 W 3.49 -0.59 600.20 5.09 80.12 600.00 0.42 N 5.20 E 4.09 5.12 700.99 9.07 75.30 700.00 3.33 N 17.32 E 3.60 17.58 802.84 12.58 75.66 800.00 7.94 N 35.98 E 3.14 36.79 905.99 15.87 73.37 900.00 14.87 N 60.28 E 3.44 62.06 1010.93 19.23 74.56 1000.00 23.84 N 90.74 E 3.06 93.81 1117.66 21.18 78.06 1100.00 32.76 N 126.94 E 1.74 131.07 1225.63 23.37 74.85 1200.00 41.69 N 166.63 E 3.11 171.70 1335.11 24.61 73.38 1300.00 54.05 N 209.44 E 3.02 216.25 1446.56 27.32 72.56 1400.00 68.73 N 256.38 E 1.03 265.41 1559.48 28.16 74.37 1500.00 83.56 N 306.67 E 1.22 317.84 1673.72 29.84 74.22 1600.00 98.23 N 359.92 E 1.81 373.07 1790.93 33.44 73.27 1700.00 115.38 N 418.56 E 3.60 434.17 1912.66 35.93 73.20 1800.00 135.44 N 485.00 E 1.90 503.55 2035.93 35.38 74.20 1900.00 155.67 N 554.18 E 0.11 575.63 2158.97 36.99 74.39 2000.00 175.15 N 623.15 E 3.86 647.30 2287.58 40.22 75.99 2100.00 196.09 N 701.24 E 1.97 728.14 2418.47 39.99 75.21 2200.00 216.86 N 783.10 E 0.51 812.57 2549.16 39.67 75.15 2300.00 238.58 N 864.38 E 1.11 896.69 2679.04 40.13 75.59 2400.00 259.48 N 944.59 E 0.76 979.57 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. D.S. 16,31 Prudhoe Bay,North Slope, Alaska SURVEY LISTING Page 2 Your ref : PMSS <0-11900'> Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 2810.92 41.54 74.18 2500.00 281.40 N 1027.71 E 2.56 1065.52 2947.39 44.31 71.89 2600.00 308.91 N 1116.39 E 2.27 1158.33 3088.28 44.87 70.99 2700.00 340.94 N 1210.31 E 0.61 1257.41 3229.11 44.79 71.40 2800.00 372.70 N 1304.26 E 0.10 1356.45 3369.92 44.78 71.94 2900.00 403.66 N 1398.43 E 0.37 1455.48 3510.97 44.81 71.14 3000.00 435.09 N 1492.80 E 0.47 1554.84 3651.17 44.05 71.57 3100.00 466.58 N 1585.89 E 0.90 1652.97 3789.26 43.32 71.80 3200.00 496.39 N 1676.34 E 0.32 1748.10 3926.54 43.20 71.21 3300.00 526.39 N 1765.46 E 0.22 1842.02 4063.89 43.48 71.62 3400.00 556.39 N 1854.72 E 0.40 1936.06 4202.42 44.23 70.59 3500.00 586.92 N 1945.60 E 1.34 2031.81 4341.96 43.86 70.40 3600.00 619.82 N 2037.18 E 0.42 2128.87 4480.00 43.33 70.57 3700.00 651.69 N 2126.84 E 0.39 2223.81 4617.06 43.00 70.71 3800.00 682.70 N 2215.29 E 0.30 2317.34 4753.55 42.66 71.10 3900.00 712.99 N 2303.11 E 0.54 2410.09 4889.00 42.31 71.76 4000.00 742.26 N 2389.66 E 0.51 2501.32 5025.12 42.96 72.61 4100.00 770.43 N 2477.60 E 0.24 2593.60 5161.44 42.57 72.80 4200.00 797.89 N 2566.09 E 0.42 2686.22 5296.67 42.34 74.09 4300.00 823.88 N 2653.32 E 1.07 2777.23 5433.19 43.28 74.60 4400.00 848.76 N 2742.87 E 0.42 2870.17 5572.19 44.64 75.80 4500.00 873.61 N 2836.15 E 0.89 2966.69 5712.24 44.26 77.18 4600.00 896.39 N 2931.51 E 0.56 3064.66 5851.42 43.90 76.58 . 4700.00 918.07 N 3025.86 E 0.52 3161.36 5989.89 43.27 76.44 4800.00 940.82 N 3118.89 E 1.17 3257.08 6126.41 42.74 76.21 4900.00 962.51 N 3209.27 E 1.03 3349.96 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. SURVEY LISTING Page 3 D.S. 16,31 Your ref : PMSS <0-11900'> Prudhoe Bay,North Slope, Alaska Last revised : il-Aug-92 Measured Inclin. Azimuth True Vert. R E C T A N G U L A R Dogleg Vert Depth Degrees Degrees Depth C O O R D I N A T E S Deg/100Ft Sect 6261.41 41.57 76.18 5000.00 984.83 N 3297.17 E 1.60 3440.62 6395.65 43.10 78.72 5100.00 1004.28 N 3384.57 E 2.58 3530.03 6534.75 44.25 78.50 5200.00 1023.14 N 3479.39 E 1.00 3626.42 6673.12 43.26 78.73 5300.00 1042.42 N 3573.06 E 0.81 3721.81 6811.86 44.22 77.50 5400.00 1062.44 N 3667.12 E 0.56 3817.79 6950.40 43.26 78.58 5500.00 1082.54 N 3760.87 E 1.16 3913.48 7086.34 42.58 78.77 5600.00 1100.26 N 3851.23 E 2.48 4005.26 7224.89 44.27 76.98 5700.00 1120.53 N 3944.95 E 0.76 4100.98 7365.38 44.83 77.00 5800.00 1142.94 N 4041.05 E 0.86 4199.56 7505.76 45.06 75.77 5900.00 1165.60 N 4136.91 E 1.82 4297.98 7648.29 45.33 75.80 6000.00 1191.22 N 4235.19 E 1.91 4399.53 7790.11 46.37 73.91 6100.00 1215.33 N 4332.81 E 4.57 4500.03 7937.48 47.50 72.20 6200.00 1247.68 N 4436.10 E 0.88 4608.22 8085.23 47.16 72.25 6300.00 1281.63 N 4539.43 E 0.88 4716.88 8231.45 46.57 71.51 6400.00 1314.59 N 4640.89 E 0.63 4823.46 8376.46 46.30 70.43 6500.00 1348.84 N 4740.16 E 0.55 4928.30 8521.29 46.19 70.21 6600.00 1384.37 N 4838.71 E 0.53 5032.78 8664.40 44.97 72.56 6700.00 1417.51 N 4935.56 E 1.51 5134.98 8804.31 43.78 73.47 6800.00 1445.25 N 5029.40 E 1.36 5232.82 8941.85 43.10 73.90 6900.00 1472.41 N 5119.82 E 0.86 5327.23 9078.99 43.33 73.29 7000.00 1499.45 N 5209.70 E 0.86 5421.07 9216.90 43.68 73.54 7100.00 1526.15 N 5300.84 E 0.36 5516.03 9354.87 43.58 73.39 7200.00 1552.87 N 5392.06 E 1.20 5611.07 9493.27 43.56 72.50 7300.00 1581.34 N 5483.40 E 0.42 5706.71 9630.36 42.70 71.30 7400.00 1610.20 N 5572.63 E 1.49 5800.42 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO ALASKA, Inc. D.S. 16,31 Prudhoe Bay,North Slope, Alaska Measured Inclin. Azimuth True Vert. R E C Depth Degrees Degrees Depth C O O SURVEY LISTING Page 4 Your ref : PMSS <0-11900'> Last revised : il-Aug-92 T A N G U L A R Dogleg Vert R D I N A T E S Deg/100Ft Sect 9765.47 41.92 69.50 7500.00 1640.97 N 5658.10 E 0.65 5891.02 9899.45 41.55 68.87 7600.00 1672.65 N 5741.44 E 0.88 5979.83 10032.64 41.36 68.06 7700.00 1705.28 N 5823.14 E 0.39 6067.30 10166.25 41.69 68.98 7800.00 1737.83 N 5905.56 E 0.60 6155.44 10301.07 42.28 68.33 7900.00 1770.66 N 5989.81 E 0.60 6245.43 10435.68 41.69 67.33 8000.00 1804.66 N 6073.25 E 0.72 6334.95 10569.30 41.48 67.97 8100.00 1838.48 N 6155.18 E 0.24 6422.97 10702.54 41.14 67.75 8200.00 1871.41 N 6236.83 E 0.65 6510.48 10834.68 40.48 65.80 8300.00 1905.33 N 6316.28 E 0.63 6596.14 10965.36 39.69 65.64 8400.00 1939.85 N 6392.99 E 0.59 6679.32 11094.56 38.78 64.10 8500.00 1974.31 N 6467.18 E 1.39 6760.06 11221.64 37.29 63.16 8600.00 2009.24 N 6537.38 E 1.79 6837.08 11345.77 35.60 61.61 8700.00 2043.25 N 6602.56 E 1.21 6909.03 11468.45 35.60 62.28 8800.00 2077.19 N 6665.00 E 1.19 6978.31 11591.19 35.06 61.83 8900.00 2110.30 N 6728.00 E 1.19 7047.92 11712.56 34.16 60.58 9000.00 2143.49 N 6788.24 E 0.52 7114.88 11833.14 33.78 61.23 9100.00 2176.59 N 6846.92 E 0.89 7180.32 Ail data is in feet unless otherwise stated Coordinates are from slot #31 and TVDs are from wellhead. Vertical section is from wellhead on azimuth 74.33 degrees. Calculation uses the minimum curvature method. ARCO Alaska, Inc. P.O.Box 100360 Anchorage, Alaska 99510 DATE: 10-2-92 REFERENCE: ARCO CASED HOLE FINALS 12-14ST 6"1-92 14-3 6"26"92 Please sign and retum,~t~/~C°PY as receipt °f data- RECEIVED ~'~~~ ~v,.,,.~i~ ~R EC E IV E D ~ / SOAT~.Y. 1~29a~ce OCT 0,5 199a APPTransRf~f21~-~~--6~ -- AI~ Oil & Gas Cons. Commissi.o.n # CENTRAL l~Ll~horage # CHEVRON # EXTENSION EXPLORATION # EXXON # MOBIL # pm~.T.rps PB WEI~ FILES # BPX # STATE OF ALASKA The ~ ~ ~ b l-lB. The correct API# far 1-213 is 50-029-21007-01. The correct wen name is The carmct API# is 50-029-20456"04. The correct API# for 7-4A is ~20292-01. The correct API# far 14-1 is 504Y29-20317-00. The correct API# far 14-5A is 5/)-029-20327-01. The correct AFl # for 16.31 is 504)2~22280~0. ARCO ~.lns_Jr~, Inc. P.O.Boz 100360 Anchorage, Alaska 99510 DATE: 10-2-92 REFERENCE: ARCO CASED HOLE FINALS ~ 8-21-92 ~ ~xo 8-30-92 .~ ! 9-7-92 PITS ~. 9-4-92 InJ Profile ~~~'~-~1 8-24-92 Collar/Baker IBP 9-1-92 Prof Profile 9-1-92 Prod Profile 8-24-92 Perf Breakdown ~'7,f' ,31-93 ~-ak Detect ~13k~ Prod Profile Prod Proffie Prod Profile Prod Profile GR/Collm' Run 1, Run 1, fy' Run 1, fy' Run 1, fy' Run 1, fY' Run 1, fY' Rim LfY' Run L5" Run 1, fy' Run 1, fy' RLm 1, fy' Run 1,5" Run Run 1, Run 1, Run 1, 5" Rim 1, fy' Rim 1, fy' Run L ~' Rim L ~Y' Please sign and return th~ attac~a~l copy as receipt of data. SonyaWanace OCT 0 5 1992 APPROVED_ ATO-1529 Alaska Oil & Gas Cons. ~0m_~li~# 9221~'~ ' # CENTRAL FII,E8 # CHEVRON D&M # EXTENSION EXPLORATION # EXXON # MOBIL # ~LIPS PB WEIJ, FII,ES R&D # BPX # STATE OF ALASKA C, nmco Ca_ taco Cnrnco C,s_mco Camco C~rnco ~co ~mco Cm~ ~mco ~m~ ~co ~co ~co ~co ~mco ~co ~mco * This is not a field print for 1-11. ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 SEPTEMBER 24, 1992 MARION SLOAN BP EXPLORATION ALASKA INC. P O BOX 196612 ANCHORAGE, ALASKA 99518-6612 RE: 92-0053 PRUDHOE BAY UNIT N-24 COMPLETION REPORT ' 92-0066 PRUDHOE BAY UNIT DS16-29A COMPLETION REPORT 92-0056 PRUDHOE BAY UNIT DS16-29 P&A PAPER WORK 92-0075 PRUDHOE BAY UNIT DS16-31 COMPLETION REPORT 92-0067 PRUDHOE BAY UNIT DS7-4A COMPLETION REPORT 78-0012 PRUDHOE BAY UNIT DS7-4 P&A PAPER WORK 92-0060 PRUDHOE BAY UNIT DS15-18 COMPLETION REPORT 91-0054 PRUDHOE BAY UNIT. DS4-34 P&A PAPER WORK DEAR MARION SLOAN, OUR FILES INDICATE THAT ARCO ALASKA AND BP EXPLORATION ALASKA INC. IS THE OPERATOR OF THE REFERENCED WELLS. THESE WELLS HAVE REPORTED PRODUCTION TO US AND WE HAVE NOT RECEIVED THE APPROPRIATE COMPLETION REPORTS (407 FORMS) TO DATE. AUGUST MONTHLY PRODUCTION PREPORTS INDICATE THAT THESE WELLS ARE OIL PRODUCER FOR THE YEAR 1992. WE HAVE NO PAPER WORK SHOWING THE COMPLETIONS FOR THE WELLS OR PLUGGING AND ABANDONMENT OF THE ORIGINAL WELL. I AM FORWARDING THIS LETTER AS A RECORD FOR YOU AND ME, NOT AS A FAILURE TO COMPLY. THANKS FOR YOUR QUICK RESPONSE ON· THESE REPORTS. SINCERELY, STEVE MC MAINS ARCO ,A~k~,, Inc. P.O.Box 100360 Anchorage, Alaska 99510 DATE: 8-18-92 REFERENCE: ARCO OPEN HOLE FINALS 8-5-92 SSTVD Color Run 1, 1"&2~' 8-5-92 DLL/MSFL/GR Color Run 1, ~'&5~' 8-5-92 BHCS/GR Color Run 1, 2'&,~' 8-5-92 CNL/GR Color Run 1, 8-6-92 SSTVD Run 1, 1"&2" 8-6-92 DLL/GR Run 1, :~'&5" 8-6-92 BHCA/GR Run 1, 8-6-92 CNL/GR Run 1, 2"&~' 8-9-92 SSTVD Run 1, 1"&2" 8-9-92 PISFL Run 1, 2"&,~' 8-9-92 BHCS Run 1, 2"&5" Please sign and return the attached copy as receipt of data. RECEIVED By___ - Sonya Wallace APPROVED ATO- 1529 Trans# 9218~-? Sch Sch Sch Sch Atlas Atlas Atlas Atlas Sch Sch Sch # CENTRAL FILES # CHEVRON #D&M # EXTENSION EXPLORATION # EXXON MARATHON # MOBIL # PHILLIPS # PB WELL FILES R&D # BPX # STATE OF ALASKA # TEXACO RECEIVED SEP 03 1992 Naska Oil & Gas Cons. Commission Anchorage AOGCC GEOLOgiCAL k4ATE~.iALS iNYENTORY LiST COMPLETION DATE ~ ~~ / ~ CO~ CONTACT . check off or list data as it is received,*list received date for 407, if not drillina histo~' well tests cored intervals core anaivsis ditch intervals uired list as NR core descri ital data i I nV'~ -l~nl:: i ' ikl-rl:n'~'~/e ili i ~.v~ , , r-~_ I RUN SCALE NO. [to thc ncarest foot) , i ii I -- ,,,, ,, i iii i ....... , , ii ii i i 8) , , i~l ' "' ''l~l ~l ..................................... I I I I I ..... II I I Ii I -- ~ I I 161 ! i .11,11 ,1 ii L~ , iii i i i 11~ i ii iiiii ~lml ii iii i i ,11 i i,1 18~ ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 July 21, 1992 Michael Zanghi Drilling Engineer Supervisor ARCO Alaska, Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit DS 16-31 ARCO Alaska, Inc. Permit No: 92-75 Sur. Loc. 1800'SNL, 1282'EWL, Sec. 24, T10N, R15E, UM Btmhole Loc. 346'NSL, 1938'WEL, Sec. 18, T10N, R16E, UM Dear Mr. Zanghi: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does nOt exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25.035. Sufficient notice (approximately 24 hours) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission may witness the test.· Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. Chairman BY ORDER OF THE COMMISSION dlf/Enclosures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25.005 la. Type of work Drill [] Redrilll-'lllb. Type of well. ExploratoryF'] Stratigraphic Test r-I Development Oil[ii Re-Entry [] Deepenr']I 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 ,, 68feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchora~Te. Alaska 99519-6612 ADL 28346 4. Location of well at surf-ace 7. Unit or property Name 11. Type Bond(r~e 2o A^C 2s.02~) 1800' SNL, 1282' EWL, SEC. 24, TION, R15E Prudhoe Ba,v Unit At top of productive interval 8. Well number Number 262' NSL, 2219' WEL, SEC. 18, TION, R16E DS 16-31 U-630610 At total depth 9. Approximate spud date Amount 346' NSL, 1938' WEL, SEC. 18, TION, R16E 7/28/92 $200,000. O0 12. Distance to nearest 13. Distance to nearest well 4. Number of acres in property15. Proposed depth (MD and mVD) property line ADL 28332/3141 feet DS 16-27/60'@ Surface feet 2560 12737'MD/9219'TVl]eet 16. To be completed for deviated wells 17. Anticipated pressure (see 2o Mc 2s.o3s Kickoff depth soofeet Maximum hole angle 44.4 o Maximum surface 3330pslg At total depth (TVD) 6~lO0'/4390pslg 18. Casing program Specifications Setting Depth s~ze Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" "20" Cond. H-40 Weld 80' Surface 111' 80' 450 cufl Poleset 13-1/2" 10-3/4" 45.5# J-55 B TC 4099' Surface 4099' 3500' 2692 cufl AS 111/400 cufl "G" 9-7/8" 7-5/8x7" 129.7/26#LaO/~$C1~ 12737' Surface 12737' 9219' 418 cufl Class "G" 19o To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cementl~d Measured depth True Vertical depth StructUral~r~ Conductor Surface Intermediate JUL 7 Production Alaska Oil & Gas C0~s. Commission .Liner Perforation depth: measured Anchorage true vertical 20. Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] Drilling program IT1 Drilling fluid program [] Time vs depth pict [] Refraction analysis [] Seabed report[] 20 AAC 25.050 requirements[] 21.1 hereby certify ~at t_he fpregoing is true and correct to the best of my knowledge Signed/~/'{~ ~.' Title Dr#ling Engineer Supervisor Date Commission Use Only Permit' Number IAPI number IApproval date ISee cover letter ~'.2 --/~.~ 150- o~ - ~-;~-z~<!~O J ~'.~_~ / - 9~_, Ifor other requirements Conditions of approval Samples required [] Yes ~No Mud Icg req~ir, ed []'~es~'No Hydrogen sulfide measures [] Yes ~_ No Directional survey requ~rea ~ Yes [] -No Required working pressure for BOPE 1-12M; 1"I3M; ~,5M; I-il0M; I-I15'M; Other: by order of Original Signed By Commissioner zne commission Date'7/~J Approved by i'3~viH W ir, h,.,,.,,,-.,., . .. Form 10-401 Rev. 12-1-85 Submit in triplicate Well Plan Summary WELLNAME: SURFACE LOCATION TARGET LOCATION TD LOCATION ESTIMATED START DATE' ESTIMATED DAYS TO COMPLETE: CONTRACTOR: MAX ANGLE: KOP: BUILD RATE: SECTION COURSE: ITEM 20" Conductor 10-3/4" shoe Base West Sak Formation 7-5/8" x 7" shoe Top sag river sandstone Current GCC HOT Oil Water Contact Top of Sadlerochit Target Total depth DS 16.31 1800' FNL 1282 FWL S24 T10N R15E 262' FSL 2219' FEL S18 T10N R16E 346' FSL 1938'FEL S18 T10N R16E 28JULY92 20 days (16 drilling & 4 to complete) NABORS ALASKA DRILLING RIG #18E 44.4° 500' MD/TVD 2.5°/100' N73.27E TVD (BKB) MD (BKB) MUD WT (PPG) 80' 111' 8.5 3500' 4099' 8.5 9219' +30' 12737 9.5 - 10.0 ABSENT ABSENT 9068' +15' 12518 9.5 - 10.0 9110' +10' 12587 9.5 - 10.0 8978' +30' 12369 9.5 - 10.0 8978' +30' 12369 9.5 - 10.0 9219' +30' 12737 9.5 - 10.0 ,LOGGING pROGRAM' OPEN HOLE: 9-7/8" HOLE:DIL/CNL/GR/SP/SDT, OPTIONAL: LDT/GR/RFT CASED HOLE RECEIVED A GCT gyro will be run after rig release. J u L 1 7 1992 A ,N,,,NULAR INJECTION Alaska 0il & Gas Cons. Commission ~nchorage Waste fluids associated with the drilling process will be injected down the DS 16- 23 10-3/4" x 7-5/8" annulus and/or injected at the central CC-2 injection facility. Call ARCO WIRELINE for testing nearby wells and to check for open annulus. FREEZE PROTECTION The 4-1/2" tubing along with the 4-1/2" annulus will be freeze protected by evacuating the fluids via gas lifting thru the GLM at 3000' TVD. Dry crude needs to be injected down the 10-3/4" x 7-5/8" annulus for freeze protection. PBU DS 16-31 OPERATIONS ,,,,SUMMARY , , , , . . . . , 10. MIRU drilling rig. N/U diverter and function test same. Drill 13-1/2" hole to 4203 MD/3500' TVD. Run and cement surface 10-3/4" casing. Nipple up BOPE and function test same to 5000 psi. PU 9-7/8" BHA and RIH. Test casing to 2800 psi for 30 minutes. Drill 10' of new hole and perform leak off test. Drill 9-7/8" intermediate hole to TD at 12737' MD/9200' TVD. Run open hole logs as programmed. RIH to condition wellbore prior to running 7-5/8" x 7" tapered casing string. RU and run 7-5/8" x 7" tapered casing string and cement as per well plan. Bump cementing top plug w/8.6 ppg filtered sea water. RIH with 7-5/8" gauge ring and junk basket - make additional 7" gauge ring and junk basket run to ensure clearance for 4-1/2" 13 CR-80 completion. Run 4-1/2", 13CR-80, tubing w/GLM's and packer assembly with SSSV. Test tubing and casing to 3000 psi. Freeze protect with diesel. NU tree and test to 5000 psi. Release drilling rig. o Anticipated BHP: ° Maximum Anticipated Surface Pressure: o Planned Completion Fluid: 3600 psi @ 8800' TVD SS 2800 psi 8.6 ppg filtered sea water Note: a, Excess non-hazardous fluids developed from the well operations will be pumped down the 7-5/8" x 10-3/4" annulus. The annulus will be left with a non-freezing fluid during any extended period. The annulus will be displaced with dry crude after. b. Minimum distances of wells within 200 ft of the proposed well are: o DS 16-27: 60' at surface o DS 16-22: 60' at surface c. The drilling fluid program and surface system will conform to the regulations set forth in 20AAC25.003. d. Maximum surface pressure is based on BHP and a full column of gas to TD (0.10 psi/ft). e. Based on previous logs on DS #16, no potential productive zones are anticipated above 3500' TVD. f. No potential hazardous levels of H2S are anticipated in this well. DS 16-31 MUD PROGRAM The mud program for this well shall follow the new Mud Policy. The following are mud parameters identified for the surface and intermediate hole sections in DS 16-31. MUD SPECIFICATIONS- SURFACE HOLE Surface: Casing point: Mud Weight: ppg 8.5 - 9.5 8.5 - 9.0 Funnel Viscosity sec/qt -,,300 <100 YP lbs/100ft2 40 - 60 20 - 40 10 sec Gel lbs/100ft2 30 - 60 15 - 20 10 min Gel lbs/100ft2 60 - 80 20 - 30 pH - 9- 10 9- 10 APl Fluid loss mi/30 min 15-25 15-25 Hardness mg/I < 200 <200 ,MUD SPECIFICATIONS-INTERMEDIATE/PRODUCTION HOLE Surface casing shoe to Top 'K' shale (~6000 - 7000')' Mud Weight ppg 9.5 - 10.0 Yield Point lbs/100ft2 10 - 15 10 sec Gel lbs/100ft2 5 - 10 10 min Gel lbs/100ft2 10 - 20 APl Fluid Loss mi/30 min <15 pH ,-- 9.5 - 10.0 Hardness mg/I < 200 Top 'K' shale to Section TD. Mud Weight ppg 9.5 - 10.5 Yield Point lbs/100ft2 10 - 20 10 sec Gel lbs/100ft2 5 - 10 10 min Gel lbs/100ft2 15 - 25 APl Fluid loss mi/30 min 6.0 - 8.0 pH -- 9.5 - 10.0 Hardness mg/Itr < 200 For more detailed information refer to the Prudhoe Bay Drilling Mud Policy that resides in DRILLING VOLUME #1 (file server) under the MUD POLICY folder. RECEIVED July 15, 1992 13:35 J U L 1 7 1992 Alaska Oil & Gas 0OHS. Oommissi¢~ Anchorage DS 1 6-31 Cement Calculations 1,0,3/4" CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: 4203' 2 X Annular volume 3092 (cuft) 2692 (cuft) 1388 Sx Arcticset III @ 1.94 Cu ft/Sk 400 (cuft) 350 Sx class G cement @ 1.16 Cu ft/Sk Top job if no returns to surface: 250 sxs AS II @ 0.936 cf/sx 7-5/8" CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: 12075' 1000' above top of Sag River w/30% excess 467 (cu ft) 276 (cuft) 238 Sx @ 1.16 Cu ft/Sk 142 (cuft) 165 Sx @ 1.16 Cu ft/Sk Longstring- Casing CASING SIZE BURST COLLAPSE TENSION (PSI) (PSI) (LBF) 7-5/8" 6890 4790 683000 7" 7240 5410 641 7-5/8" x 7" Crossover point (150' md above top of Sag River Formation) ' 11,568' md/8825' tvd. July 15, 1992 13:35 GR~ LAND DIRECTIONAL DRILLING, INC. Corporate Office 1111 East 80th Avenue Anchorage, AK 99518 (907) 349-4511 Fax 349-2487 DIRECTIONAL WELL PLAN for PRUDHOE BAY DRILLING wall ......... ~ DS 16-31 Field ........ : PRUDHOE BAY DRILL SITE 16 Computation..: MINIMUM CURVATURE Prepared ..... z 07/13/92 Section at...: N,73.27,E KB elevation.: 68.00 LEGA~ DESCRIPTION Surface ...... t 1800 FNL 1282 FWL S24 T10N R15E UM Target ....... : 262 FSL 2219 FEL S18 T10N R16E UM BHL .......... % 327 FSL 2000 FEL S18 T10N R16E UM X ASP ZONE 4 Y 720069,12 5929152.17 726864,76 5931416,29 727081.31 5931488.54 PROPOSED WELL PROFILE STATION IDENTIFICATION KB KOP BUILD 2.'50/100 MEAS INCLN DEPTH ANGLE 0 0.00 5O0 0.00 600 2.50 700 5.00 800 7.50 ', 900 10.00 1000 12,50 1100 15,00 1200 17,50 1300 20.00 VERT-DEPTHS SECT DIRECTION REL-COORDINATES DL/ BKB SUB-S DIST BEARING FROM-WELLHEAD 100 0 -68 0 N 0.00 E 0 N 0 E 0.0 500 432 0 N 73.27 E 0 N 0 E 0.0 600 532 2 N 73,27 E I N 2 E 2.5 700 632 9 N 73,27 E 3 N 8 E 2,5 799 731 20 N 73,27 E 6 N 19 E 2,5 898 830 35 N 73,27 E 10 N 33 E 2.5 996 928 54 N 73.27 E 16 N 52 E 2,5 1093 1025 78 N 73.27 E 22 N 75 E 2.5 1189 1121 106 N 73.27 E 31 N 102 E 2.5 1284 12i6 138 N 73,27 E 40 N 132 E 2.5 END OF 2.50 BUILD 1400 22,50 1500 25.00 1600 27,50 1700' 30.00 1800 32.50 1900 35.00 2000 37.50 2100 40.00 2200 42.50 2237 43.44 137T 1309 174 N 73.27 E 50 N 167 E 2.5 1469 1401 215 N 73,27 E 62 N 206 E 2,5 1558 1490 259 N 73,27 E 75 N 248 E 2.5 1646 1578. 307 N 73.27 E 88 N 294 E 2,5 1731 1663 359 N 73.27 E 103 N 344 E 2.5 1815 1747 414 N 73.27 E 119 N 397 E 2.5 1895 1827 474 N 73.27 E 136 N 454 E 2.5 1973 1905 536 N 73,27 E 154 N 513 E 2.5 2048 1980 602 N 73.27 E 173 N 577 E 2.5 2076 2008 628 N 73,27 E 181 N 601 E 2.5 TOP SADLEROCHIT HOT OWC TD 11743 43.44 11743 43,44 11867 43.44 11925 43.44 12075 43.44 8978 8910 8978 8910 9068 9000 9110 9042 9219 9151 7163 N 73,27 E 2062 N 6860 E 0,0 7163 N 73,27 E 2062 N 6860 E 0.0 7248 N 73.27 E 2087 N 6942 E 0.0 7288 N 73,27 E 2098 N 6980 E 0.0 7391 N 73.27 E 2128 N 7079 E 0.0 RECEIVED (GLDD ¢¢)9Z D$16."51 BI.34 7:39 AN 1) J U L.. 1 7 1992 Aiask~ 0il & Gas Cons. Anchorage Ilia II I i [ inn iill iii IilII Iii Ill · Iii I Ilill[ I ............... ~ I~-,~f~c~t.t~ · BI(B ~Eb"TN INCLN o o o 0S 10-31 (P2) " VERTICAL SECTION VIEW D Ti) :~2025 ~t~ 7~1 49,44 S~¢f.~on ~t-. N 73. 27 £ TVD $~01~,, :1 )nch- 1200 i~liB- 0-- ) .~.l( ....... ~...._ ............ Dep $co]~.-- :1 ln~h - 1ZDD feet .... ~..~ .! i ......... Dr~wn ..... -- 07/13/92 I t I_.1 -'1 LI 1 ..... -]"Il f i ........... .... L_L.J It ' ......... .. ._ _/..L..t. I k '", ' _"i 2 ..... ........ " 'I,F I 1 ll~..,~. I I I I ~.' ................ 111t ~ ...................... ' ........................... 1111 \ .................................. .............. ___L1 I 1: t:: ~ N; .......... ~4~ ]-] [~ S,. _ ' .................... I' 19'i ...... %. .... ' .............. I'TII '~_ ................. _ ........ ].i .. I l'l-l' ' "~ ......... I I I! [ ,'~, - ,..t.' ~o]o'-J-~ I ~ [ I .... '~ ...... ' .............. __ '2_ i'_ ...................... IIII " '~,......... - ..... I I II ............ '~, ......... ' .................... ! I I I ': i--" ....... ,,. ' ............... ............. tltl '~L ...... BI~O-- I I t [ ___L_~ j ........... .,. _L,I_I.._! .......... ', ........... . /lli % ................................ I I"1'1 .............................. N .............................................. Itll .[, . , . ' ..... -~H''~ ............. ~x ............................... I ] I'I ..... "~ .... It 'l'-I ._ "~ Illl t ....... : · ..................... ._ I I il .I.J NN ........... ....... l_.l..l. 1 ' ..... ~ t.I _ %, ' ................................................. l'l' t I · ..................................................... I1[1 .... ' ....... i ..................... .= 80{~ Jill ......... _ .......... .~ I ............... ._ Jill. ' _ ..L.L LJ ................... '~ ........................... IllJ ....................... % .................................................... 13l]O:] ..... T ! I t ............... N,' ~ I '} '1'1 ....... . .............. \ I1-]! .... ~. Itll ........ .X, .................. II I! ......... ~. ......... "1" T~J~- ( 111 '~. t '[')l ........................ ." ,,,,. ]1]1 .................... L. L i .t i ......... "I,-.-1 N;: ..... : .......... ]-'i'"'.-: .... .... I lit ,,J ................ . ~V. _.11tl ......... %,._ I~11 ..................... .N_ ..... l'Lil'l 9400 Itlt ....... '~ .... IIII \ . ....... I._L.I.. I .................... il(~-- ~~'i':- ~"~ , ........ ,-_. .: ....... ..'i .. ~Cl ~ I '~ ~.. I O 61~ IZO0 II~LI 2400 9(X:X) ~00 4200 ~Bl:)O 54~ BffO0 lBO0 7200 78DO Sect~ on Oepartur. ....... IIIiiii ii ii I I i i ii i IiN i iiilallhla DS 16-31 (P2) PLAN V~EW CLOSURE ..... , 738I ¢t et N 73. 27 E DECLINATIO[, 30. 28 E SCALE ......., 1 tnch= 1000 feet DRAWN ......., 07/[3/02 ..... .... pRUBHOETM BAY ...... DR I'LL ING- i ILJ I I i _ i. m im FROM:GREAT LAND DIR.DRILLING TO: 90? 564 5193 JUL 14, 1992 9:31AM P OJ Greatland Dir~otional Drilling, ino. collision Avoidance Analysis Planned Well: DS1631P 07/14/92 Closest'Approach Existing sep depth Well mln ft TVD £t MD ft DS1630P 240 501 501 DS1625D 180 0 0 D$1626D 240 0 0 DS1627D 60 0 0 DSi628P 774 0 0 DSi629D 729 0 0 DS1629AD 729 0 0 DS1601G 566 325 325 DS1602G 456 275 2?5 DS1603G 335 641 641 DS1604G 250 0 0 DS1605G 183 0 0 DS1606G 185 125 125 DS1607G 822 0 0 DS1608G 761 519 519 DS1609G 720 500 500 DS1609AG 723 0 0 DS1610G 699 475 475 DS1611G 696 0 0 DS1612G 708 519 519 DS1613G 748 225 225 DS1614G 801 0 0 DS1615G 867 0 0 DS1616G 943 520 520 DS1617G 514 1212 1224 DS1618G 451 1237 1250 DS1619G 413 1044 1050 DS1620G 354 972 976 DS1621G 288 948 951 DS1622G 60 238 238 DS1623G 178 781 781 DS1624G 120 0 0 Pad: DS16 Field: 09:11:12 100ft Warning band Start End 0 1091 0 1834 started: 09:11:12 ended: 09=16:11 NSLOPE 25ft Serious band Start End ~mmmmmWN mmmNm~ SU~-,.:"ACE" LE DIVERTEF! SYSTEM .::.:'." Two lines venting 90 deg. apart in directions that ensure sale down wind venting, and ex- tending to a point at least 100' from any potential'""' source ot ignilion. I0" Full Opening Valves '35' or as required Dresser Sleeve 10' Diverter Uno 1. Ali pipe connections 150¢ ANSI Flanges or welded connections and secured to prevent movemenL 2. Manual 10" full opening valves mechanically canned, ed to ensure that one valve is fail-sale open at all limes. 3. Ail tums are 90 deg. and targeted. 10' Full opening ball valve w/Hydraulic Actuator Cellar 20" Diverter Spool w/10' Side Outlet MEM BOP STACK CONFIGURATION ATTACHMENT II 13 5/8", 5000 PSi WP TR! PLE RAM :STACK WORKO VER RISER ANNULAR PREVENTER 2" KILL LINE MANUAL HYDRAULIC GATE GATE I ! PI PE RAMS I I PI PE RAMS ! DRILLING SPOOL 4" CHOKE LINE HYDRAULIC MANUAL GATE GATE BLIND RAMS i TA ~,J ( TO I WATER. TRIP 75' .~kN D .,," , VdLUHE TAMK I,~0 80L- M~O cLF. A~J~R V'N2uU~ TYI~ - Choke Manifold - Poor Boy Degasser · - Brandt Vacuum.-Type Degasser - Brandt Dual Tandem Shale Shaker - Pioneer Mud Cleaners - Pioneer MKI Centrifuge DISTRIELJTION OlrC / ,; / .." /' '1"o PIT 1 - Recording drilling fluid= pit 'level indicator with both visual and audio warning devices at driller's console 1 - Trip Tank (75 BBL.) 1 - Drilling fluid flow sensor with readout at driller's console 11 - 5 Hp Agitators (i) Fee (2) L._~__~ [ 2 thru ;";" CHECK LIST FOR NEW WELL PERMITS [9 thru 1~] ..', '"S) '7--~ I - ~'-~--- [10 & 133 [ 14 thru C4) Casg '[23 thru C5) BOPE . 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Company /~ (_(~ .... YES 1. Is permit fee attached ............................................... 2. Is well to be located in a defined pool .............................. 3. Is well located proper distance from property 1 ine ................... 4. Is well located proper distance from other wells ..................... 5. Is sufficient undedicated acreage available in this pool ............. 6. Is well to be deviated & is wellbore plat included ................... 7. Is operator the only affected party .................................. 8. Can permit be approved before 15-day wait ............................ . Does operator have a bond in force ................................... Is a conservation order needed ....................................... Is actministrative approval needed .................................... Is 1 ease nuTber appropriate .................... · ...................... ~_ Does we l 1 have a unique name & number ................................ Is conductor string provided ......................................... Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water .................. Is enough cement used to c i rculate on conductor & surface ............ Will cement tie in surface & intermediate or production strings ...... .. Will cement cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension, and burst. Is well to be kicked off from an existing wellbore ................... Is old wellbore abandonment procedure included on 10-403 ............. Is adequate wellbore separation proposed ............................. Is a diverter system required ........................................ Is drilling fluid program schematic & list of equipment adequate ..... .. ~-~' Are necessary diagrams $ descriptions of diverter $ BOPE attached .... Does BOPE have sufficient pressure rating -- test to So~o psig ..... Does choke manifold comply w/API RP-53 (May 84) ...................... Is presence of H2S gas probable ...................................... Lease & Well NO REMARKS [ 29 t, hr:d (7) Contact [32] (8) Addl 29. 30. 31. 32. 33. FOR EXPLORATORY & STRATIGRAPHIC WELLS' Are data presented on potential overpressure zones ................... Are seismic analysis data presented on shallow gas zones ............. If offshore loc, are survey results of seabed conditions presented... Name and phone ncmber of contact to supply weekly progress data ...... Additional requirements ............................................. ,A 0 --I m Z ,! geo]ogy' eng i nee r i ng' DWJ _-~ MTM LCS RPC.,~.,~C.. BEW ~ 't- ~ I rev 04/92 jo/6.011 INITIAL GEOL uNIT ON/OFF POOL CLASS STATUS AREA ~ SHORE ~oI.:o Z)~.~: 1-o, '/ ~> 7 ~s //6U~ ° ~ Additional remarks' Well HistorY File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history' file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. RECEIVED NOV 2 b 1992 Alaska Oil & Gas Cons. Commission Anchorage bis Tape Yer.~iicatior~ Listina Scblu~uberger .AlasK~ f'.'omputit:o Cehter 92110/ 6 F b ! C DATE : 9~/!0/ 6 O~IC!N : FLIC PRE;V IO[.i S TAPE; GPE'PhTOR: I.,OG~!NG DATA O[ E~:ATO~ '~ITbgS8: $ E; C T I 0 ~,i: TOw~SH I P: FSI,: FY;f,: UKRRIC~ FI_,C,f~R: ?~' r, 924¢9 222 6 7 . 00 3? .Or.' PAGE.., Sc~.l,t~';~eraer ~,l. ask~ Co~,,put.~q Cent;er !.5" RUP.?~ER FI?4 STAt(DOFFS US['.D TO CEf,.~TRAblE~7 TOOLST~!NG PAGE: V~TR8IO~~.~ : .... ' °ri~lO~ HAX ~;C SIZE : lO24 CUR I D e r:' t h 0.5 t.) 0 0 shjfter~ and cli.[:,ped curves; !!.9!0.o !I*-240.0 11431.0 ~. :l, 43 i .0 al! rUnS meraed; DO cased F[I!.;F, CURvF Frei' SHIFTS: _, - . ~77.5 ! 1 a7f; . 1865.5 1 !. 8~,5.5 lg40.o I 1,?!.6.~ 775.0 ! J 777.5 773 5 77i:0 '! !773. ] 7F. 8.5 ~ 1758.5 1~7a.5 ] .I 7 73 . 0 hole data, .... ) Tane, VerIf~cet~or~ List~nq 7-OCT-!g92 05;54 PAGE !742,5 ~1724 5 ! 679.0 !166g.5 t166a'0 I166a.5 1!651,0 1.637,5 11636,5 16~4, .... 1!613.5 13.613.5 1 5q5 5 1579,5 11579.5 ~ 57~,0 ~!572,5 ! 571 , 5 ~1517.5 ~!518.5 !508,0 11509.5 1503.5 11504.0 !~94.0 !~496.0 11495.5 14~5.5 146!.5 ~457.0 1444.0 .! !C,O.O 99.5 c;E!) .nATA 5~;i.II~C.E !.I. 742,5 11681,,5 11668,,5 i 1651.0 1,16,4_,0.0 11625,,0 !1613.0 1. 1. 590. C~ t 1572,0 1!542.5 11523°O 11.485o5 't. t457.5 10t).5 J. i723.0 11677°5 1,!.595,5 ti5~7o0 ~1574,.0 11572.5 !t464,0 ! 1 2 II i~, ii ii I, ~l ,~, ll~ i, 1 14 3 5. {) N~FRGE BASE 11874.0 11435.0 T~i'-,' i:r"~;CLE p./,,,qc TF: ('~,S'[.'''~t: "' ' r'Pl ?~ . _ , -.... ~> .~ .... , ,_, . ~ ~ ~ .......... PK..t/'l~i":(."'r [)[1: T(.) (.;t~, SKI,, TIT; CR (CAtr. Ry'[?;d; '~.I,.L. 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I 1 4 68 0000000000 5994.3 ! 00 0 (., 0 00 () 1 i 1 4 68 0000000000 599,i3q O0 0()o O0 0 ! 1 l. 4 68 0000000000 ~99.1~a O0 o00 ,0o (? ~ J, ! 4 6B 0000000000 599~38 oo OOC) nO {~ 1 i 1 4 68 0000000000 b 9 q 4 :~ n (} 0 000 (', 0 (.~ i 1 1. 4 68 0000000000 59943~ O~ 000 (.)0 0 I ! 1 '-$ 68 0000000000 5994..:~ ~: O0 000 O0 0 i 1 I 4 6a 0000000000 5994~ oO O00 Oc, 0 i ! i 4 68 0000000000 ** [,ATA 4,543 -999,250 -999,250 LIS Tape Veri..ticatlon Sc~].~m~eroer,~ i\],.asKo. . ¢.o~:p,ltinc~' ~ · Center.. .... D~:PT. i J 400. 000 T~7~,~$. ~CS t, 235.o00 TBaD.BCS ,I hD. [)TK -999. 250 ![~' DEPT. t 0gO0. 000 DT. BCS TEi~,iS. BCS 5770.000 T~fqD. BC5 !'[.~I~, DTK -999. 250 Il,?!, DTE ~,'.'~WES. DTE -999. 250 DKPff. 99c) 0.0()0 D"?. BC8 '.TE:~'~ ~<CS ~,270 ,'~H0 T~"D,..~: ,BOb I I.,P. OTE -909. 256 ll,~. MTE~ . D'!': [::; -999 . 250 aCS 4915.00(,~ 'rE[::o. ECS [?rE -999. 250 .rb~,~ . D'rE .~ ~ ., 7 - [] C. T-1:95) 2 0 5: 54 72. ,375 6. 676 7.898 !.84.750 -999,250 -999.250 -q99.250 GR,,.3Co 98.188 iC'71,000 I~)PH, OTE -999. 250 9~9. 250 8P' 9TE -999. 250 8 ~6.5,90 I 0 P ~. O'r E -999 o 250 SP, DT.ff; 155 875 -999:250 -999.250 -999.25o GR, (~CS ! 09. 000 !. ! ~ 8,000 I f) P }4. O :r E - 999.250 -999. 250 SD. i):':r~ -999. 250 -~9g.250 GR.BC8 114 000 .,..Oo4 5: . ": . (.~ {.) UI [}P:4. i)'FE 999 250 -999. 250 SP, DTE -999. 250 -999. 250 GR, SCS ! 20. 375 lo73.o00 1DPH DTE 999 250 -999. 250 SP['{)T~: :999:250 -99q 2 GP 8C8 63 71.9 .. 50 9!6.5U0 !DPH.DTE -999:250 -999.250 8P.DT~: -99g.250 -999. 250 998.000 !i>PH.DTE -999.250 -999.25o SP. DTK -999. 250 -999.250 GP.~C8 40.688 (~'.~2,5(.)0 .Ii.~P**,DTki; -999.250 -999.2b() SP.DT~,: -99~.250 CAb !. I,..: P H D'r E 8FL. DTE CALl.SCS I~,PH.DTE S~b. DTE CAhl.BC8 IMPH.DTE SFL.DTE CAL1.BCS I~PH.D'TE 8FL.DTE CAI,, I . BCS :I ~P[t DTE CALI.BCS IMPH.DTE SFI,.DTE CALI,BCS IMPH.DTE SFL.DTE CALl BC8 IMPH:DTE SFL.DTE CAbI.BCS !MPH.DIE 8FL.DTE CAL1.BCS INiOH.DTE SFt.,.DTE PAGE: 5,583 7,152 8.414 -999.250 -999.250 -999.250 -999.~50 -999. 50 -999.250 ' 9 g 9' o 250 -99~ 250 .,,99:250 -999.250 -999.250 -999.250 -999. 250 - 99 250 -999 250 -999:250 -999.250 -999.250 999.250 - gg:=so -99 250 -999.250 -999.250 -999.250 -999.250 -999.250 -999.250 -999.250 Schlu~'~berc,~er~ .Alaska Cor~put,,ing C..e~ter~. DEPT. 8! 00. 000 PT.BC8 ! L b. D T E - 999.250 I b ;.q. I) T 7800. (: 0 (; D T. t3: £ 8 BCS 1990.000 TEB!P.BC8 D'P[j -999.250 T [,., ~"4. DTE; PTa -999. 250 DEPT, 7500. 000 PT. T~.7~?!8, BC S 3975.0,00 TE~<:D.BCS ! '"' I)TF: -999,25o i)~pT. 7200,000 DT.BC$ ~'E[iS,BC8 4125'000 ILD,I)T~ -999,250 IL~,DTE ~TE~.DTE -999.25U [')EpT. 6900,000 DT. BC$ 7E?,!S.BCS 3990.000 TEND.SCS !bP.l)'''~.' -qq~ 2qn :[biv~.DTP; b.tTErq. DTE -999,250 .... ' , . , ..... ~: ;: .. TLr). P~' ~' .,.E -qq9 25o ., _ . ., ~ .. . .~ .... ~..,m[¢~ DTE -9q9,250 7-.OCT-1 992 05:%.4 86.813 -999.250 -999.250 ~62.000 IDP~,DTE 999,250 '999,250 SP.I.)TF2 2999,250 ' G:: BCS 61 ..... 53!, .,-.. 8.500 IDP!.i. DTE -999~250 -999. 250 8P, DT~: -999,250 -999. 250 (;~, BC8 66,688. 1{123. 500 IDPH: DTE -999. 250 - 95:/' 9 , 250 8 P . I:) T E - 999 , 250 -999.250 GR.BCS 74.938 945.000 ID'PH.DTE -999'250 -999.250 8P.f)'rg -999.250 -999,250 GP,BC$ 95.313 !067.000 Ir:)p~ i:.)TE -999 250 -~9~ 250 "~" ' ' 063 250 2 5 0 -u~o 2%n G~.B a 31.828 .... · ,- . Ce~ . 9u[~ oUO ![)P::i DTE -999 250 · e -. , . ~ ~ - -a99.250 8P.f)TE -999.250 -999.250 GR.~CS 3o.563 g:s9.SbO !DPi{.PTE -999.250 -o9o. P50 So.i',T~ -999.250 CAL 1. , BC8 IMPM. DTE SF'L.D1E CALI.BCS SFL.DTE CAb 1 BC ! ~ PH , DTE SFL.DTE CAL 1. SCS I~iPH ,DIE, CAL1.BCS IMPH.DTE 8F"L.DT CAB 1 ECS I M PH. DTE SMD. DTE CAL1.BCS I~PM.DTE SFL.DTE Cgbl, ..C8 I ~PH. DTE SFL.DTE CAL1.BCS I~PH.DTE SFI.,.DTE CAI, t.BCS IMPH.DTE 8FL.DTE C ~I.:1 .BCS I~FH .DTE OP _J. ........ PAGE: 999,2~50 ,7'999 '~ 50 -999,250 -999 250 -999,250 ~999,250 99'9,2150 '999,250 999,250 999 50 '999,250 '999.250 '999,250 '999.250 .-999 ' 250 999,250 -999,250 -999,250 -999,250 -999.250 -999 250 -999:250 -99q 250 -999:250 -999.250 -999.250 -999.250 -999,250 -999,250 2999,250 999,250 !sis T.-'ttt~e 'verification Listiar/ Scblumberqer Alask8 Computi. nq Center 7-OCT-1999 05:54 PAGE: -999.250 DPa~. 4~00o000 D!r.BCS ILD,DTE -999.250 Iba. OTE ~TE~.DTE -999.250 DEPT. 4200.000 DT.5C5 TE~S.BCS 2860.000 IbP.DT~ -999.250 ~?E~.DTE -999.250 -999.250 S!:'.OTE -999.250 -999.250 GR,aCG 61.406 I057.000 iOPd. D"FE -999..250 -97~.. 25o .... SP.DTE -999. 25n 250 G~'.~. ~{CS ? 41. 938 I('-~6. 000 IDPH.DTE 250 SP, D'rE -999. 250 CAbI.BC$ I~PH,DTE SFL.DTE CAbI,BC$ I~PH.DTE SFb.DTE CAbI,BCS I~PH.DTE SFL.DTE CAL1.BCS !MPM,DTE SFL,DTE Cgbl.BC$ SFL,DTE .'999, °o -999'250 -999,250 29992 5o 999,250 -999,250 -999,250 -999,250 -999.250 -999;250 -999 o 25O -999.250 -999.250 -999.250 **** ~ '1,, !,~ k7 TN A I f,E:.P:. **** FI!..,~: r'~A,~qE : EDIT VE~lO~q ~ 00!A07 9aTE FlLff TYPE L~S* F!I,E : S~'RV ICI< : FL, T' C VF~g].O',' : 90!arq7 [,aTF : 921!0f 6 $ch.lUm~erc.]er alaska (..':omput~o Ce~ter 7-nCT-19g2 05:54 Curves and 1oo reader data for' each run and.tool st:ring im separate flies; Tool String ~1 fo $aalerochit. run ~resented {i. rst [PrJcary c:!er~th control, string t]sed to de~th shift the'$adler interval) fol. lo,~ed by files for other ma~ r:aSs strings per run. VF:N[>OR TOOI~ C[3D~]: .. ...... . .... ... ..... I 1940 ~, .. ........... ,.~ , ,, .; .. ...... ~ ,,, ,., .,~ ........... . . T'~' mi) DRI:LLE~ (F'T): ,., OGGE .... (FT), TOP I,OC ~,~}:.,~VA:L, (FT): BOTTO~':: LOG I~'~'p~' FT Y,(:)~i;I~JG SP[,:Er:, CFP?'{~): Tf!f'>! STRT!~:G C"FfIP TO .BE~TTO~'<) bPTD r~ 'r K 13 ,r ~] ~J432o0 TOo!.! . TCC-B ~ 39 SGC-$A 6 I DR'S-(: 4969 NSC-E 79:] SI:C-!I ~ 278 SI:S-gA 200~ D!C-EC 271 DIS-HD 276 TC~-A 9 107 SL~;-D'I 2053 L S N ? 4:C. 90 6,0n Schlu2~',bera-~r ~laska Comput!r:~ Celt, er '7-r)CT-.1992 :l. · g 4 0 76 . 0 '~ ~:~') 76.0 ~ ,970 76.0 ~4~TRIX: SAaDSTO~E ~?ATR!X DF~PS!TY: 2.65 TOOL STflNDOF~' (I~): REi;~,~AgKS: 1,5" PUF~,-BEF; FIN s[rhN'DOFFS 'USED TO CE~'TRAf,,!ZE TOObSTRING LPT RI~,~ AS CAbiPE[~ C.~L!PER IS (:~N LO~t; S'I'l')~ OF ~0[~ FOR ~4f]ST r)F ~A~N' PASS, C.AL!P~TR READS COPR~[jC'.f'LY THC, UGU O~:~J REPEAT SECTIOM AS PPOPEN TUOD []P!EJ~,~T,t~,~'ION %~AS 6CH!EVE[) 0~] THIS PASS. APPPOXIMATELY 27' P A G E: LIS $chlu~;~berc~er ^,lask~ C.'opputinC~ Center 7-[3CT-19o2 ~5:54 !'! C U 8 5 q o 4 3 ~ 0 t,~. P 1' 599438 On . .=~ .... ~ '::.. e ' WHO OH N'~ 5904,3~ 00 ' ,!:' ,,<99438 DT~; ~,~ };' H 0 599438 DTE OF',a~,~ 599438 O0 59~4.3f~ O0 nTF ~ ~¢ B ('~59943P 9'r~: ~,,' ~ 59 q 4 3 ~ 0 PTI' C,~Pl 59oa.3~ or) r'T:F !. E 599a 3~ 09 T',', F L ~ ~ 9 q 43 g o o TYPE !0 [~ao43~ T~; !,~5i~C 598.00,0 TT2,BHC 4,i t · n(: O. 5P. a. gC -70, ]75 C~, FHC z! ~(~ nan ~"'r'k;-' ~[-~C 1fl3.73~ .~,Rb~S. SC 413.25() iD}.'~4, i)TU 2.418 CI~zP. DTE 42! .no0 ~!,b. hq'E 2. !75 C!L~'.DTE 2(~.0(,0 TD{0V, U'rE 3.n00 !~,~QF. DTF 52.0r44 I ! P'~. [;:'~E I59.25o I:!Xt~.DTE -'7o. 375 G~:e, [)TE 28.0!6 TENS,DTE 0.7 t 3 H T [.: ~';'. f.) ~ ~. 3 O P. 5 () t) 4!6.250 28,016 0.783 165.750 !68.000 2.000 2!.844 21~0.000 LIS ~aPe veriflcatiof L, istin~ Sch!umber(~er Alaska Coml?utin~j CeDter C n L l, ~ !~ f 4,54 .] T E !q S, i:<~ H C l ~pr~. 9T~'; 6,03:! CI!9,DTh ILia'. roTE 5.q49 !FRE.DT~ !T~t).PTr 3,43,750 I!XD.DTF FT[fu. DTK 163.73g $ W p V; C E FILE TYPE 7-0CT-1992 05:54 ~, 4,38 44 t, 000 5465, 413.250 421.000 20.00 o 5 ? o 94 0,7b~ q5,~75 TT!,B~C 405. 500 SP.BFC 5900,000 !"! TK i'4, B HC 149,625 ~.f)PH. DTE ~ 5t, 250 I!,D. DTE 20.00 0 1 [)f~ F ' ,9 T E 16,219 l !: R ~. 9 T E 6.461 ~R,grE 0 , 8 !. 2 ;4 :I.' ~'; q , !':)T E 490.750 8P, lINC 6070. 000 278, 26~.750 ILD.DTE 20.000 '!DQF. DTE -1 .901 O. 954 }tTE~..~, DTE 598.000 -70.]75 ~. 63. 738 2.418 2.375 3. 158. 250 ~8.016 602.500 657.500 6.46 I, !.61.825 6.676 0 O0 1.37 125 ! 72:375 988.500 706.000 -1.90! 156.200 3.596 3.71,7 0. 237. 375 .!46.625 ]..095,009 T~2.BNC C!~P.DTE CIL~.DTE I~OF.DTE iI×~.DTE TENS.DTE TT2,BHC GR.B~C MRES.BBC CI~P.DTE CILM.DTE I~OF.DTE IIX~.DTE TENS.DTE PAGE: 416,250 28,016 0,783 i65.:750 ,, ,:OOOooo 21.844 5465.000 465,000 172-375 0,812 139,750 14~:.250 .000 9.758 5900.000 490.750 146.625 0.854 250,875 253.250 0.000 13.633 6070.000 11 bls Sch!u~,+~eroer Alaska Co~.,putfna Center ~urves a~('.} 1..o~ header data for eac~ rt.)~ and too!. stri. n() In separate files; Tool 8tri~ ~1, fo Sadlerochit rur~ presented f~lrst (prlmary depth control string used to depth $'h!ft the"Sadler interval) f.o!!owed by files ~or other maiP, ~>ass stri~gs uer run, . ................ ...... .... F:EA PER ~ATA T!~,~E CIP. CULAT!Oi'~ ENDED: ~ ! ~F: LOGGER ~l~ PPI!.,,L~R (FT): ~r> LOGGE~(FT) TOP [,~OG I~'~TERVAL F"OTTO~ LOG I~'~T~RVAL (FT): STOP 4].64,5 09-AUG-92 CF 32.6 930 :1636 I 1.977.0 11950.0 4!64.5 ~. 194o. 0 2400.0 O9-AUG-92 09 - A U G - 92 A~4- A A 870 SGC-SA ~ 1 DPS-C 4969 h:8C- F 793 SI, C-UA SI.,S-'r A ~001 Dtc-EC 27 i P!S-}iO 276 TC~:-I, 9 107 g! y-l',a 2053 41~6,n !., 5 k D 0,0(': bis ?m~e ye. ri,ficatioc~ bisti,n~ $ch].umberaer A!ask~ Cor~put. i~a Cer,.t:er .940 76.0 .970 76.0 2.65 1,5" .P,.):9:.~EF: FI~: ST.ANDOFFS USED TO CENTaALIZ~: TOO!...~STPlMG LDT RIJ{~: h5 CgI.~!PE~ f)b, LY, GF CNLY I..:C(;GE[? ')"O 8I~RFA. CE (:;~SI?~ # !¸3 t~IS ~'aee Ver!ficat.,i,,,or~ L.i, stir~ Sc~lu~;~bermer ~laska Compt!tJ. n9 Cer~ter 7-r}CT-J gq2 O~''5¢i; TYPE - CHA:t(~ ** P V ! (17.E ~ P ]ri A ...... A , g P t F 59943[~ 00 000 00 0 3 59o43~ OO OOC O0 O 3 599 ,t 3 ~ 00 00 0 00 0 3 599438 O0 000 O0 0 3 S99438 oo O00 O0 0 3 500 GR,CSG 1~:3,500 087 }!T~':N. CSG 225,125 000 ¢,R. CSG !nS 750 000 GR.CSG ] ~37 BT~:~,~. CSG 996.5()0 000 (;R CS(; 98,1.!~8 6~8 NTEb~CS(; 1078.000 OeO d~:.CSd 155.875 875 HT'~)LI. CSG 965.000 000 CP CSG ~(;9. 000 GR. CSG 114. 000 46? ~E~::. CSG lO~;1 .500 nO0 f;ri, CSg 120. 375 CC0 f;rc. CSG 63.7!9 119 n~:,~ CS~ 927.5C0 Of~0 GP.CSG ¢ 9,OEO 925 N'rF:',]. CSG ~ 025. 000 ~I9 HTF~!:CSG ~t 4.5(>0 PAGE: 14 ~ I 4 68 0000000000 1 I 4 6~ 0000000000 1 t 4 68 0o00000000 1 1. 4 68 00PO000000 oooooooooo I 2 °222°°°°00 TES!$.CSG 2255.000 ~RES.CSG · ENS,CS6 6240.000 ~RES,CSG 9'E~S.CSG 5830,000 aRES.CS6 TE~S,CSG 5880.000 ~RES.CSG TENS.CSG 5600.000 MRES.CSG TEf..!S,CSG 5830.000 MRES,CSG TEbS,CSG 5255.000 ~RES.CSG TFES.CSG %~50.000 ~RES.CSG · ENS.CSG 482C.O00 ~RE$.CSG T~:f,i5.CSC 4955.000 TF~¢5.CSG 454%.000 TF~S.CSC 4~bO.O00 0.839 0,856 0.871 0,900 0,938 0,953 0.981 1,002 1.018 1.040 1.061 1,098 ~ch!.u~eroer Al. as.ko Co~',put:.i~q Ce~t:er D~PT. 7500,000 !;,FPT. 7200. 000 D F: P ~'. 6900.000 DMPT', 660,9 DFPT. 630C. 000 ~T[!;~.. CSG I 12. 663 000 963 D ~' P m 48 00 C,' 0 ('! DF. urn. 41. 64. 6.68B TE~'~8. CSG 2. $ 0 0 4. ~a38 T~S. CSG 5.000 5.313 7"E~',t $, CSG 3.0 u 0 3.0~3 4,500 3.000 O, 500 5.906 T~JK'S. CSG 9,000 4.~44 ~. 500 9.6~8 TE~:~$, CSG 7.500 0.OO0 T~ MS.CSG 7.000 1.125 T}:~'~S, CSG 2.500 !. 406 7Fr'~8. CSG 4. ('.)00 7.2bi 4!90.000 4130.000 41 05.000 4135.000 4~50. 000 3040. 000 3465. 000 3495. 3265. (')00 3l 80. 000 2:q. ao. ooo 2845.000 2890.0o0 2795.000 ~RES.CSG ~{RES.CSG ~RES.CSG ~RES.CSG ~RES.CSG t~RES,CSG SRES.CSG ~RES.CSG ~RES.CSG ~ES.CSG ~ES.CSU ~Es.CSG ~ES.CSG PAGE: 15 !,113 1,124 1,i42 1,153 1,'180 1,2t7 1,240 1.260 1.287 1.]05 1,318 !,334 1,345 1,372 1,376 16 8FRV! CF; : FLIC VSRSI(3~q : 0()1~,.07 t 92/10/ RFC SlZ~7 : 1024 TYPE : LO F!bF ~JA~/E: : 59!? .004 ~3FRVI. CE .'.. FLIC F 1 b~;~ TYPE !.,a 8T F!I,E : Curves an~ lea header data for each. ;~ess, t:ool, strl. no, arid run in seDarat.;:;' 'e files. F! !..,E nbc '" riTE 12025 . , . , .. -, ~: , _ . .. 11442,0 09-AFG-9? 93o 1636 11977.0 !.1950o0 4-16~,5 ~1940,0 09-,~UG-92 Sch]u~her~per ~lask. a Comr~ut.i~o Cent. er 7-0CT-!992 05154 17 LDTD L DTO *% ~C '~4uD TYPE: ~,~UD VISCOSITY ~UD P~'~: Rgo!,>TI ITY MUD AT ~'~[ASf~TD Ul~D FILTRATE AT ~'UD CAKE AT TOOL TYPIC] (FP!T~.~E~SL DFS-C 4960 8L, C-UA 278 8L8- ~:A ...2.001 DIC-~;C 27! DIS-~D 276 TC~-~ B 107 9,875 9,90 ~0,00 9,00 168,0 1.940 76.0 ~,880 76.0 t.97('} 76.0 2,6.5.' ~rr~ 27' Scblt]¢,ber<~er AlaSk'{~ Comput..!na Center 7'-0CT.~!~92 05:54 2 66 3 73 4 66 5 66 6 73 7 65 ~ 6~ 9 65 12 13 66 0 !5 66 68 !6 66 0 66 1 If) ORDER PEP~' ~ T 590,138 TT~ [~R (JS qgg43~3 ~'~2 ~[q~ US 599438 T~3 ~ US 5u94~ TT4 nq~ US 59943S SP r~ ,,~V 5~q43R C~I-r ~H~ [f'~ 'rE ~:S R~-~R b~ C!:I~P ~:,TP '-.:~FP 5o0438 ClVm DTR '.":,'qa 59043~ Cl!.,p' D'ru ~;-Ip 5gg43~ ............. EPR PROCESS P[~ C ~' ~"1 ~ ...... [,Aoo P.: {] f~ .... .,R S.~.'~ D Ei,E~' CODE CHEX) c~ 00 0 4 1 ! 4 68 000O0O0000 0 O0 o e ! 1 4 68 0000000000 0 ()0 0 4 1 I 4 68 0000000000 0 On n 4 ! ! 4 6~ 0000000000 0 00 0 4 ! I 4 68 0000000000 () o,; 0 4 1 ! 4 68 0000000000 ,) O~ 0 q 1 I 4 68 0000000000 0 n,~ () 4 1 ! 4 6~ Of) n~ .... ., . 0 .0 .... 00O0 {'~ ()0 0 4 ! 1 ~ 68 0000000000 0 t.~O r, 4 1 1 4 68 O00000000O ('~ oO o a I I 4 68 fi000000000 n O0 0 4 ! 1 4 68 OC00000000 o o0 r', 4 I 1 4 68 0000o0000o o or; o 4. 1 ! 4 6~ 0000000000 (' O0 0 4 I 1 4 68 0000000000 0 O0 e ~ ! 1 4 68 0000000000 r~ 00 0 4 ! ! 4 68 00O0000000 ,? ()e C 4 ! ! 4 68 0000000090 (~ (:9 c 4 ! 1 4 68 0000000000 C OO o 4 1 1 4 69 OOO000000o (' 0o n 4 l 1. 4 68 0000000000 o 0c ¢ 4 ! 1 4 68 00000000O0 o o0 o 4 ! ! 4 68 ~0O0000000 c) 00 0 4, 1. ! 4 68 0 o 00000000 0 0{'~ r~ ~ !. I 4 6~ OO00000000 (.? 07 o 4 1 I 4 68 o00n000000 ,~!~ Tame veri~E.!.c~tion. [,istino ;chlUmt, erc~er Alas<ia Com~utlnq Center 7-0CT-!.992 05:54 I9 SFT..~TI !'31~ []~'.~e> 599 GP DTR G~:PI 599 ~T~ DTR DEGF 599 ....... .... .. ..... ..... 0 0 1 I .... ~ 000000000 438 00 O00 00 0 4 I ! 4 62 43~ 00 00O O0 0 4 i t 4 6e 0000000000 a38 O0 000 O0 0 4 I 3 4 68 0000000000 4]8 oo oon oo o 4 I I 4 68 oooooo0o00 41g O0 O0(? 0@ O ~ I 1 4 68 0000000000 4~ 00 000 00 0 4 I I 4 68 0000000000 438 00 000 O0 0 4 ! t 4 68 O00OO00000 4~ 00 000 00 0 4 ! i 4 6~ 0000000000 D~PT, 12025,500 TT3.BHR 613,500 HT~N.BMR -!44,750 !~P~.!)T~ 6,555 !L~'.DTR 6.461 !!RD,DT~ SFLU.gT~ 7,4~6 aTE~,DTR 16!,600 295.250 7.426 DT. [~.'HR 0,000 TTI. ~IR 599,500 TT2,BHB TT,,,%.~,~[' 43P 750 ~ ,~" - . ..... , ......... ., .. oP ~...,~R 54 875 GR BHR T E ~,~ ~, B H [:~ 22 U 0,000 .:~ E.~, ..~ ....... , ............. CIDP r~T[:'; 354 000 IDPiq,gT~ 2 822 CI~P ....... l .... :' .. "'..; .... IF'RE: V)T~ 20.000 I. DOw ~'?~ 3 000 ,gTW -54,875 ~. D'FR 30,531 TE~:S,DTR [}T,BHR 90,06~ TT!,G~R 599,500 TTP,BHR TT4,[~R~ 438.750 SP,BI~R -54,938 GR,BHR · ENS.~}~ 5760,000 ~Tg'~,B~a 161.600 hRES,~R CIDP,f~T~ 354.000 I['~.DTR 2,824. CI~P,DT~ C!b9,DTR 355.750 IL9,DTP 2,811 CIb~,DT~ IF~,9~R 20.000 IPQF'.DTR 3.000 I~OF,DTR !I×D,DTR 4P.656 I!R~,DT~ 145,~75 II~U,DTg SP,gTP -54.939 GP,OTP 30,53~ TFNS,DT~ hRES,D?P 0.797 HTE~,DT~ 977.000 9T.BHk 95,625 TT!.B~ 659.000 TT2,PgW TT4.~P~ 466.750 C!DP.I~T~? ~56.125 !DP~.~.IDTP 6.~02 CI~F,DT~ C!!.:[>.[~TR 15R.125 I!,L,D'F~ 6.316 (?!LV.DT~ lP~.nT}~ 20.00(i !DOF.~')Ta n. Ooo I~OF.DT~ tlXi.',,DT~ 13.609 I!~.DTP 140.000 ITX~.DTR So. OT~ 2~.7al C~,OTR 18!.125 TE~;S.DT~ ~.~$,PT~ 0,S26 ~T~i~!.DTR l!43.000 4!4,000 30,531 0,797 1.52,500 154,6~5 2,000 !7,734 2200,000 414.000 30,531 0,797 !52 500 154: 5 2.000 17,734 5760,000 464,250 181,125 0,826 142,875 148,375 0,000 7,234 6100.000 480.250 !.99.375 0,850 339.000 345.250 0,000 14,352 Verification ~TEu, 9T .P. !57,2~.2 {~!R i~S, DTR 992 05: 54 199.375 1153.000 PAGEJ 6200. 000 0 SERVICE : FL~,C D.aT~ : q2!lOl 6 FIL~; TYP~: : !,0 **** T&PW TRAILER D,~TE : 021!0i 6 C~,~;~T : 3RC[:~ h!,~aSa~, !NC.,PRUDi~(~E ~aY,!6-31,,5002922280