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Home My WebLink About186-084PLUGGib~G & LOC_%TION CL~A~,NC~ REPORT State cf Alaska Review the well fi!e, a.~.-cmmme:: o=. plu.~:ji~q, well head C~n¢£usions: ~/5F7- O0 g STATE OF ALASKA ALASK/& OIL AND GAS CONSERVATION COrv~,,,~SSlON WELL COMPLETION OR RECOMPLETION REPORT AND LOG Plugged Back for Sidetrack 1. Status of Well Classification of Service Well [] Oil [] Gas [] Suspended [] Abandoned [] Service 2. Name of Operator 7. Permit Number BP Exploration (Alaska) Inc. 186-084 301-019 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-21587-00 4. Location of well at surface 9. Unit or Lease Name 1440' SNL, 347' WEE, SEC. 33, Tll N, R13E, UM ",~ .ii..::~'~'~,~i;~.~..¢~,~ Prudhoe Bay Unit At top of productive interval 1903' SNL, 1087' WEL, SEC. 05, T10N, R13E, UM At total depth,.~ ~?,~~ 10. Well Number Y-20 2731' SNL, 1950' WEL, SEC. 05, T10N, R13E, UM 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation an~~: ' 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool KBE = 89.03' ADL 028289 12. Date Spudded 04/28/1986 113' Date T'D' Reached 114' Date C°mp" Susp" °r Aband'05/25/1986 ~27/2001 115' water depth' if °fish°re N/A MSL 116' N°' °f C°mpleti°ns Zero 17. Total Depth (MD+TVD) ~ 18. Plug Back Depth (MD+~D) ~19. Directional Sudsy ~ 20. Depth where SSSV setl 21. Thickness of Permafrost 13866 9012 FTI 13866 9012 FTI B Yes ~ NoI N/A MaI 1900' (Approx.) 22. Type Electric or Other Logs Run Teleco MWD Gamma 23. CASING, LINER AND CEMENTING RECORD CASING SE~ING DEPTH HOLE SIZE WT. PER FT. GRADE TOP BOSOM S~ZE CEMENTING RECORD AMOUNT PULLED 20" Insulated Conductor Sudace 110' 8 cu yds Concrete 13-3/8" 72¢ L-80 40' 3095' 17-1/2" 4389 cuff Permafrost 9-5/8" 47¢ L-80 38' 12646' 12-1/4" 920 cu~ Class 'G' 4-1/2" 13.6¢ AFL4S 12430' 13866' 8-1/2" Uncemented Slo~ed Liner 24. Pedorations open to Production (MD+TVD of Top and 25. TUBING RECORD Bottom and inte~al, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) None 4-1/2", 12.6¢, L-80 11686' - 12430' 12430' MD ~D MD ~D 26. ACID, F~CTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11593' Set EZSV ~?~/~.f' -~ ~;; 4 U,J ~ 11570' Top of Whipstock 114574' Set CIBP &~.~qh0r¢,~r¢ 11449' Top of Whipstock 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas li~, etc.) Not on Production N/A Date of Test Hours Tested PRODUCTION FOR O~L-B8L GAS-MCF WATER-BBL CHOKE SIZE ~ GAS-OIL RATIO TEgT PERIOD I Flow Tubing Casing Pressure CALCU~TED O~L-BBL GAS-MCF WATER-BBL O~L GRAWTY-API (CORR) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosi~, fractures, apparent dips and presence of oil, gas or water. Submit core chips. ~ . Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Markers 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids recovered Marker Name Depth Depth and gravity, GOR, and time of each phase. Sag River 12210' 8893' Shublik A 12320' 8922' Sadlerochit / Zone 4 12670' 8985' 31. List of Attachments: Summary of Daily Drilling Reports 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed TerrieHubble ,,~,,~~ ~ Title TechnicalAssistant Date Y-20 186-084 301-019 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No./Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 10-407 Rev. 07-01-80 Original Well: Y-20 Field: Prudhoe Bay Field APl: 50-029-21587-00 Perm it: 186-084 Sidetrack Well: Y-20A Field: Prudhoe Bay Field APl: 50-029-21587-00 Permit: 201-025 PRE-RIG WORK FOR SIDETRACKING OPERATION 01/21/01 MITIA failed. CMIT, T x IA to 2500 psi passed. 01/23/01 Cleared paraffin w/3.71" gauge ring at 2263' sim. Tagged obstruction at 11660' sim with gauge ring. 01/26/01 MIT - Tubing passed. Tubing is fluid packed, IA FL at 150'. Pressured tubing to 3000 psi. In first 15 minutes tubing lost 40 psi. In second 15 minutes tubing lost another 40 psi for a total of 80 psi. Monitored another 15 minutes, lost 30 psi. Fill up volume after 50 minutes. Test was 20 gallons. Leak rate = 0.4 gpm. Bled tubing back to 1240 psi. Final WHP = 1240 / 750 / 20. 01/29/01 MIT- Tubing passed. Tubing FL was at surface. IA FL at 125'. Pressured tubing to 3000 psi. Tubing MIT lost 20 psi in the first 15 minutes, 20 psi in the second 15 minutes, 5 psi in the third 15 minutes and 5 psi in the forth 15 minutes. For a total of 40 psi in 30 minutes and 50 psi in 60 minutes. IA pressure remained constant during MITT. Fill up volume was 18 gallons and total leak time was 73 minutes. 02/16/01 Punched holes in tubing from 11613' to 11617' and cut tubing at 11637'. Left well shut in. 02/19/01 MIRU. RIH to 4000'. Circulate hot water down coil taking returns up backside to system. Establish circulation, 2 bpm at 2300 psig down IA, taking returns up production tubing. POH, RD. Drift tubing to 11600' sim w/3.65" Cent and SB. No problems. Rig up Triplex. Pressure up on tubing to 1780 psi. IA rose to 1320 psi. RDMO. ~: .' :: ~' : ~ : -i::~BP~ExpLORATION Page 2 of 10 Legal Well Name: Y-20 Common Well Name: Y-20A Spud Date: 2/20/2001 Event Name: REENTER & COMPLETE Start: 2/20/2001 End: 3/30/2001 Contractor Name: NABORS Rig Release: 3/30/2001 Group: RIG Rig Name: NABORS 7ES Rig Number: N7ES ~Date:.-~;;;:~ ~.From:;To~ ;~HoUm ~ Task: O~e: :.Phase-~ ~::: :~ :. : .... Description of Operations 2/20/2001 00:00 - 01:00 1.00 MOB PRE PJSM w/Peak. Secure ~llar. 01:00 - 05:30 4.50 MOB PRE Move rig off P-20B. Remove snow from side of road. Moved rig to mile 2 of P pad road. Rear wheel off road. 05:30 - 09:00 3.50 MOB PRE Assessed incident potential. Foxed plan, no pipelines or power lines in area. Stabilized rig with D-8 ~ts. Backed rig into ~nter of road. 09:00 - 10:00 1.00 MOB PRE PJSM. Moved rig to pipeline road. 10:00 - 11:00 1.00 MOB ~PRE Incident review. Nabors reviewof howwheel steered off road. Stressed no margin for error on pipeline road, CC-2 areas. 11:00 - 18:00 7.00 MOB PRE Continued rig move to Spine Road, CC-2 road, and on to Y pad. 18:00 - 00:00 6.00 MOB PRE ~U on Y pad and raise derrick while wait on wellhouse removal and pad prep. Moved p~s, ~mp and shop from P pad to Y pad. ~U top ddve, rig floor, ~le chute. ~21/2001 00:00 - 06:00 6.00 RIGU PRE Set ma~s over well. PJSM. Spot sub base over well. Spot mud pits, shop and ~mp. Set cu~ings tank. Rig a~pted 0600 hfs 212112001. 06:00 - 08:30 2.50 RIGU PRE Be~ cu~ings tank. Secure ~llar doors. Hook up pits. Take on seawater. 08:30 - 09:00 0.50 RIGU PRE Held pre-spud safe~ and environmental meeting. 09:00 - 10:30 1.50 RIGU PRE Installed seconda~ annular valve on tree. ~U lines to circulate. 10:30- 11:30 1.00 RIGU PRE ~U lubri~tor and pulled BPV. 11:30 - 12:30 1.00 RIGU PRE Finished ~U lines to circulate diesel to outside cu~ings tank. 12:30 - 20:30 8.00: RIGU PRE Circulate diesel freeze prote~ from well. Circulate B/U with seawater to ~its. 3 BPM, 450 psi. ~D Lines. 20:30 - 21:00 0.501 RIGU PRE Installed ~C and tested from below to 750 psi. 21:00 - 22:30 1.50 RIGU PRE N/D adapter flange and tree. Veri~ hanger threads, ok. Te~inate ~ntrol lines. 22:30 - 00:00 1.50 RIGU PRE N/U BOP's. N2N2001 00:00 - 01:30 1.50 RIGU PRE N/U BOP. 01:30 - 07:30 6.00 RIGU PRE Test BOP's. Tested pipe rams, blind rams, hydril, choke and kill line valves, floor safe~ valves, and choke manifold to 250~3500 psi. (Could not test lower pipe rams, XO in way). Fun~ion tested a~umulator. Witness of test waived by John Crisp, AOGCC. UD tools, cleared floor. 07:30 - 08:30 1.00 RIGU PRE ~U lubri~tor and pulled ~C. 08:30 - 10:00 1.50 PULL DEOOMP M/U landing jt and screw into hanger. BOLDS. Pulled hanger to rig floor, ~me free at 185K. PU ~ = 155K. 10:00 - 11:00 1.00 PULL DECOMP ~U tongs and HES spooling un~. 11:00 - 23:00 12.00 PULL DEGOMP UD landing jt and tubing hanger. Pull ~mpletion tubing, spooling balan~ and ~ntrol line. Re~vered 47 clamps and 2 SS bands. Cont'd ~D 4-1/2" tubing. Re~vered 286 its 4-1/2" BTR tubing + 26.58' cut jt. 23:00 - 00:00 1.00 PULL DECOMP UD tubing tongs and clean rig floor. 2/23/2001 00:00 - 01:00 1.00' PULL DEGOMP Clear rig floor. 01:00 - 02:00 1.00 BOPSUR DEOOMP Tested lower pipe rams to 250~3500 psi. 02:00 - 03:00 1.00 BOPSUR DECOMP Installed wear bushing. 03:00 - 06:00 3.00 PULL DECOMP M/U fishing B~ ~1. Oversho~ grappel for 4-1/2" tubing stub. 06:00 - 16:00 10.00 PULL DECOMP RIH picking up 4" drill pipe. 16:00 - 17:00 1.00 PULL DECOMP Got slow pump rates. P/U = 200K, SIC =150K, Rot = 175K, 7K ~bs tq. Swallowed and ~ught fish. 17:00 - 19:00 2.00 PULL DEOOMP Jarred on fish to increasing increments from 250K to 350K. No good, would not pull out of PBR. 19:00- 19:30 0.50 PULL DECOMP Pedo~ed blind backoff. Printed: 4/12/2001 10:29:13AM ii i i Operations iSummary RePort Legal Well Name: Y-20 Common Well Name: Y-20A Spud Date: 2/20/2001 Event Name: REENTER & COMPLETE Start: 2/20/2001 End: 3/30/2001 Contractor Name: NABORS Rig Release: 3/30/2001 Group: RIG Rig Name: NABORS 7ES Rig Number: N7ES ~i Date. ~.~'.' ' FrOm .To. ~°urs ·.Task: (~(:~dbe Phase~ !~ii '.:~i~: ~ Description of Operations 2/23/2001 19:30-20:30 1.00 PULL DECOMP CBU. 12 bpm, 1850 psi. 20:30- 00:00 3.50 PULL DECOMP POH. 2/24/2001 00:00 - 03:00 3.00i PULL DECOMP Finish POH. 03:00-03:30 0.50 PULL DECOMP L/D 13.1' cutjtfish. 03:30 - 06:00 2.50 PULL DECOMP P/U BHA #2, 60' washpipe to mill over GLM. 06:00 - 07:00 1.00 PULL DECOMP Cut and slip drilling line. 07:00 - 08:00 1.00 PULL DECOMP Service top drive. 08:00- 15:30 7.50 PULL DECOMP RIH to 11,577'. 15:30 - 19:30 4.00 PULL DECOMP Wash to 11,629', TOF DPM, and milled over GLM. 19:30 - 21:00 1.50 PULL DECOMP Washed to 11,671' while pumping hi-visc sweep. 12 BPM, 1850 psi. No metal returns. 21:00- 00:00 3.00 PULL DECOMP POH to 5125' at report time. 2/25/2001 00:00- 02:30 2.50 PULL DECOMP Finish POH. 02:30 - 03:30 1.00 PULL DECOMP L/D I jt of washpipe, ring from junk damage near connection. L/D milling shoe, medium wear. 03:30 - 04:30 1.00 PULL DECOMP P/U 3 jts washpipe and new milling shoe. 04:30- 10:30 6.00 PULL DECOMP RIH to 11,671'. 10:30 - 18:30 8.00 PULL DECOMP Washover tubing fl 11,671' to 11,686'. Rotary stalling, 15K ft-lb. Work pipe, attempt to make progress. No forward progress. P/U=205K 'S/O=145K Rot=185K 18:30 - 21:00 2.50 PULL DECOMP Pmp dry job and POH to 7788' 21:00 - 22:00 1.00 PULL DECOMP Service top drive, hook up to hi-line power. 22:00- 0.00 PULL DECOMP POH. 2/26/2001 00:00 - 01:00 1.00 PULL DECOMP POH. 01:00 - 02:00 1.00 PULL DECOMP L/D oil jars, 60' wash pipe, mill shoe. Shoe 100% worn. 02:00 - 04:30 2.50 PULL DECOMP P/U outside cutter fishing BHA. 04:30 - 08:30 4.00 PULL DECOMP RIH t/9979'. 08:30 - 09:30 1.00 PULL DECOMP Cut and Slip drilling line. Service top drive. 09:30 - 10:00 0.50 PULL DECOMP RIH to TOF @ 11,629'. 10:00 - 12:00 2.00 PULL ~DECOMP Wash over fish. P/U and locate collar on pup jt below GLM @11659'. Rotate to cut tbg. 12:00 - 17:00 5.00 PULL DECOMP POH to BHA. 17:00 - 19:00 2.00 PULL DECOMP L/D washpipe and BHA to fish. Hang off fish in jt washpipe and tbg cutter. 19:00 - 20:00 1.00 PULL DECOMP 'Closed blind rams and pressured 9-5~8" casing to 3000 psi, could not inject. Held 3000 psi on chart for casing test, 30 min. Bled off 100 psi. (ok) 20:00 - 22:30 2.50 PULL DECOMP L/D fish, washpipe, cutter. Recovered 27.47' GLM & pups, 21.8' of full jt below GLM pup. Partial cut by cutter on pup it. Full jt twisted off, partialy sliced during previous milling. 22:30 - 00:00 1.50' DHEQP DECOMP PJU Schlumberger and RIH w/8.5" gauge ring/junk basket. 2/27/2001 08:00 - 09:30 1.50 FISH LINE LNR1 PJSM, P/U fishing assy - 8 1/8" overshot w/3 5/8" grapple 09:30 - 13:30 4.00 FISH LINE LNR1 RIH to 11513', P/U wt 210 k, S/O wt 145 k 13:30 - 14:30 1.00 FISH LINE LNR1 Brk circ, wash down, tag, engage fish at 11574' dpm, p/u 15 k over, set dn 15 k on fish, P/U, sheared out of EZS¥ w/15 k over 14:30 - 15:30 1.00 FISH LINE LNR1 Drop dart, open pump out sub, slug pipe 15:30- 20:30 5.00 FISH LINE ;LNR1 POH to BHA 20:30 - 21:30 1.00 FISH LINE LNR1 L/D fish and fishing tools, 100 % recovery of fish 21:30 - 22:00 0.50 FISH LINE LNR1 Clear and clean rig floor 22:00 - 00;00 2.00 STWHIP LNR1 PJSM, P/U whipstock tools, M/U 9 5/8" Baker btm trip anchor whipstock on 8" starter mill, 8" lower mill, 8 1/2" upper mill, 1 jt of HWDP, bumber Printed: 4112/2001 10:29:13 AM ' : :'~ : : BP EXPLORATION Page4 of 10 ~ :i~:,~ ~: :~: ~:~ ':: ::!~ ~ operatiOns Summary Report Legal Well Name: Y-20 Common Well Name: Y-20A Spud Date: 2/20/2001 Event Name: REENTER & COMPLETE Start: 2/20/2001 End: 3/30/2001 Contractor Name: NABORS Rig Release: 3/30/2001 Group: RIG Rig Name: NABORS 7ES Rig Number: N7ES ::.- ::-Date- .;~:~:~Erom ~T0 :: :H?urs~¢Task''~ ~od~!i!Phase t t : ~t~ . Description of Operations N27/2001 22:00 - 00:00 2.00 S~HIP LNR1 sub, float, flex jt, hos 212812001 00:00 - 10:30 10.50 S~HIP LNR1 RIH w/9 5/8" baker btm trip ancher whipstock assy on 4" DP to 11545', est P/U ~ 220 k, SIC ~ 155 k, circ, orient to 65 R of high side, slacked off, tag EZSV at 11593' DPM, set whipstock w/20 k dn, good suda~ indi~tion of pins sheared, P/U, pull 5 k over to check anchor set, SIC 45 k dn to shear off whipstock, good suda~ indication of bolt sheared, Top of whipstock slide at 11570' 10:30 - 13:30 3.00 S~HIP LNR1 PJSM w/all involved personnel on mud displa~ment, displa~d seawater w/11.3 ppg LSND-HT mud at 10 bpm, 1650 -2600 psi, overdispla~d by 200 bbls, mud ~ in 11.3 ppg, mud ~ out 10.9 ppg 13:30 - 17:00 3.50 S~HIP LNR1 Circ and ~nd to raise mud ~ to 11.3 ppg in/out w/10 bpm at 2625 psi 17:00 - 00:00 7.00 S~HIP LNR1 Milling window f/11571' - 11585' w/10.5 bpm at 2850 psi, 120 ~m, 10 - 14 k of torque, p/u 215 k, sic 155 k, rot 175 k 31112001 00:00 - ~:30 4.50 S~HIP LNR1 Milling window f/11585' - 11599' w/10 bpm at 2600 psi, 4~ gpm, 120 ~m, 10 kwob, 10 - 14 k of torque, p/u 215 k, sic 155 k, rot 175 k 04:30 - 06:30 2.00 S~HIP LNR1 Circ hole clean w/hi-vis sweep at 10 bpm w/2650 psi while recipro~ting and rotating through window, recovered +/- 160 lbs of metal shavings in returns while milling &circ ~06:30 - 11:00 4.50 S~HIP LNR1 PJSM on tripping, monitor well, stable, slug pipe, POH to BHA 11:00 - 13:00 2.00 S~HIP LNR1 UD DC's and mill assy, 8 1/2" upper mill in gauge, all mills looked good 13:00 - 14:00 1.00~ S~HIP LNR1 Clear and clean rig floor 14:00 - 15:00 1.00 S~HIP LNR1 Pull wear bushing, flush out stack 15:00 - 18:00 3.00 BOPSUR LNR1 PJSM on testing BOPe's, ~U test equipment, Test Bop stack as follows, all rams, valves, annular and lines f/250 - 3500 psi as per state reg's, ~D test equipment, John Crisp w/AOGCC waived witnessing BOP test, choke manifold was tested f/250 -3500 psi while TOH 18:00 - 18:30 0.50 BOPSUF LNR1 Install wear bushing 18:30 - 21:30 3.00 DRILL LNR1 PJSM on handling and running BHA, P/U 1 1/4 degree mtr, 8 1/2" ~C1 bit, MWD-GR-RES-PWD, orient, upload and test MWD, RIH w/ 5" HWDP to 727' 21:30 - 22:00 0.50 DRILL LNR1 Shallow hole test MWD, OK 22:00 - 23:00 1.00 DRILL LNR1 Slip and cut 95' of Drill line 23:00 - 00:00 1.00 DRILL LNR1 Se~i~ Top Drive 3/2/2001 00:00 - ~:30 4.50 DRILL LNR1 RIH w/B~, 1 1/4 degree mtr, 8 1/2" MXC1 bit, MWD-GR-RES-PWD mtr, on 4" DP to 11372' ~:30 - 05:30 1.00 DRILL LNR1 Madd pass tie-in Icg w/mwd~r f/11372-11560' 05:30 - 10:30 5.00 DRILL LNR1 Orient mtr to 65 R of HS, a~empt to work through window at 11472', no go, many a~empts at various orientations, no suc~ss :10:30- 15:00 4.50, DRILL JUNK LNR1 POH to B~ 15:00 - 17:30 2.50 DRILL JUNK LNR1 POH w/B~, Download MWD, UD BHA, bit was cored out w/all inner row teeth groud smooth to cone 17:30 - 18:30 1.00 S~HIP JUNK LNR1 PJSM on handling BHA, P/U, 9 DC's, std back in derrick 18:30 - 20:30 2.00 S~HIP JUNK LNR1 Pedorming general rig maintenan~ while waiting on W/L to arrive on Io~tion 3/3/2001 01:30 - 05:00 3.50 S~HIP JUNK LNR1 PJSM, P/U whipstock tools, M/U 9 5~8" Baker btm trip anchor whipstock on 8" sta~er mill, 8" lower mill, 8 1/2" upper mill, 1 jt of HWDP, humber sub, float, flex jt, hos, rih w/dc's and hwdp, suda~ test mwd, ok 05:00 - 14:00 9.00 S~HIP JUNK LNR1 RIH w/9 5~8" baker btm trip ancher whipstock assy on 4" DP to 11420', est P/U ~ 206 k, SIC ~ 148 k, circ, orient to 58 R of HS, slacked off, tag ClBP at 11474' DPM, set whipstock w/18 k dh, good suda~ ~indi~tion of pins sheared, P/U, pull 5 k over to check anchor set, chewed orientation at 58 R of HS, SIC 38 k dn to shear off whipstock, good suda~ indi~tion of bolt sheared, Top of whipstock slide at Printed: 4/12/2001 10:29:13 AM :' . : BP EXpLoRATION Page 5 of 10 i :' ::Operati°ns'SUmmary Report · Legal Well Name: Y-20 Common Well Name: Y-20A Spud Date: 2/20/2001 Event Name: REENTER & COMPLETE Start: 2/20/2001 End: 3/30/2001 Contractor Name: NABORS Rig Release: 3/30/2001 Group: RIG Rig Name: NABORS 7ES Rig Number: N7ES :: Date's-: From -To iH~O~SI~ ~TaSk~ :~oUdbe i~phase! ~ : ~ : Description of Operations 31312001 05:00- 14:00 9.00 STWHIP JUNK LNR1 11449' 14:00 - 00:00 10.00 STWHIP! JUNK LNR1 Milling window f/11449' - 11465', drill formation f/11465'- 11479 (note: undergage hole at 8"fl 11470-11479)w/10.5 bpm at 2600 psi, 2-12 k web, 50 - 120 rpm, 445 gpm, 10 - 14,000 ftlbs of torque, p/u 206 k, s/o 148 k, rot 190 k 31412001 00:00 - 02:30 2.50 STWHIP JUNK LNR1 Giro hole clean w/hi-vis sweep at 10 bpm w/2650 psi while reciprocating and rotating through window w/pumps on & off, recovered +/- 185 lbs of metal shavings in returns while milling & circ 02:30 - 08:30 6.00 STWHIP JUNK LNR1 PJSM on tripping, Monitor well, stable, POH to BHA 08:30 - 11:00 2.50 S'I'WHIP JUNK LNR1 POH w/HWDP, L/D DC's, MWD, Mill Assy 11:00 - 11:30 0.50 STWHIP JUNK LNR1 Clear and clean rig floor 11:30 - 12:00 0.50 STWHIP JUNK LNR1 Pull wear bushing 12:00 - 13:00 1.00 STWHIP JUNK LNR1 Flush out wellhead and bop stack 13:00 - 14:00 1.00 STWHIP JUNK LNR1 Run wear bushing 14:00 - 16:30 2.50 DRILL JUNK LNR1 P/U, M/u BHA - 1 1/4 degree motor, MWD-GR-RES-PWD, orient, upload, RIH w/Bt-lA to 820', surface test MWD, OK. 16:30 - 17:30 1.00 DRILL JUNK LNR1 Cut and slip drill line 17:30- 18:00 0.50 DRILL JUNK LNR1 Service top drive and crown 18:00 - 23:00 5.00 DRILL JUNK LNR1 RIH to 11372', orient bit to 80 R of HS, slacked off to 11470', washed to 11485', no problems going through window f/11449 - 11465' 23:00 - 23:30 0.50 DRILL LNR1 Drld and survey w/1 1/4 motor, MWD-GR-RES-PWD f/11479 - 11485, AST .25 hfs 23:30 - 00:00 0.50 DRILL LNR1 Giro at 11485', 9 3/4 bpm 2450 psi, 408 gpm 31512001 00:00 - 00:30 0.50 DRILL LNR1 Circ w/11.3 ppg in/out 00:30 - 01:30 1.00 DRILL LNR1 Perform FIT to 12.4 ppg emw at 11465' md/8482' tvd, pumped 1.6 bbls at 1/4 bpm to 485 psi w/11.3 ppg mw, s/d pumps pressure stabilized at 404 psi in 10 mins, Bled off, rec'd 1.5 bbls 01:30 - 16:00 14.50 DRILL LNR1 Drld and survey w/1 1/4 motor, MWD-GR-RES-PWD f/11485 - 11934', art 7.3 hrs, ast 4.2 hfs 16:00 - 18:30 2.50 DRILL GIRO LNR1 Pop off leaking on # 1 pump, S/D pump, POH w/1 std, Circ at 11840 - 11741 w/pump # 2 at 105 spm, 1325 psi, 257 gpm, 30 rpm and 6-7000 ftlbs-torq while changing out pop off valve and seat on # 1 pump 18:30 - 00:00 5.50 DRILL LNR1 Ddd and survey w/1 1/4 motor, MWD-GR-RES-PWD f/11934'- 12142', art 4.5 hfs, ast 0 hfs 3/6/2001 00:00 - 01:30 1.50 DRILL LNR1 Drill & survey w/1 1/4 Deg mtr, MWD-GR-RES-PWD, f/12,142' to 12,216' (8 1/2" TD). art = 3/4 Hr asr = 0 Hrs. 01:30 - 03:00 1.50 DRILL LNR1 Circulate hole clean, monitor well - static 03:00 - 04:30 1.50 DRILL LNR1 POH to 11,372'. No hole problems. Monitor well - static. RIH to 12,216' w/no hole problems. 04:30 - 07:00 2.50 DRILL LNR1 Circulate hole clean. Sweep hole w/Hi vis sweep. Spot Hi-vis liner pill. Monitor well - static. 07:00 - 14:30 7.50 DRILL LNR1 POH to 11,372' & monitor well - static. Drop steel rabbit & con't POH & L/D BHA # 4. 14:30 - 15:30 1.00 CASE LNR1 Clear floor & PJU 7" Csg equipment. 115:30 - 18:30 3.00 CASE LNR1 PJSM. RIH w/22 its 7", 26//, L-80, BTC Csg w/Float shoe, float collar, latch collar, & 4 cent to 943'. Giro liner vlume. 18:30 - 00:00 5.50 CASE LNR1 Con't RIH w/DP (filling every 10 stands) to 11349'. 3/712001 00:00 - 01:00 1.00 CASE LNR1 M/U cmt hd, circ at 11349', p/u wt 185 k, s/o wt 140 k 01:00 - 05:00 4.00 CASE LNR1 !RIH f/11349 - 12121', tight spot w/30 k set dn wt, attempt to wash dn, ~)acked off, p/u to 12061', brk circ at 3 bpm 470 psi, wash dn to 12143', 3acked off, work pipe, establish Giro, wash dn to 12216' 05:00 - 13:00 8.00 CASE LNR1 Break Giro, reciprocating pipe, p/u wt 200 k, s/o wt 140 k, stage pumps up in 1/2 bbl increments to 6 bpm at 1230 psi, packed off to 1900 psi, Printed: 4/12/2001 10:29:13AM BAt;a, T./llOli~l;~3 IT./ I--&T,/i--I Subject: Re: Changes to Y-20A Permit ~201~25 ~ Date: Tue, 27 Feb 2001 11:33:40 -080~----'~ From: Tom Maunder <tom_maunder@admin.state,ak.us> To: "Sherritt, Allen" <SherriJA@BP.com> CC: "Bunch, Anthony S" <bunchas@BP.com>, "Stone, Dan M" <StoneDM@BP.com> Allen, Thanks for the head up regarding the changing situation on Y-20 and Y-20A. We have discussed the progress or lack thereof of the intended pre-rig abandonment and the subsequent intent to accomplish the task during decompletion. The operational path has continued to the current situation where as you note, the condition of the remainder of the original completion is such that additional progress is unlikely. Your proposed changes to the plans are acceptable. As you note, the abandonment of the lower portion of the Y-20 wellbore will be accomplished with a combination of the bridge plug, liner cement and liner top packer. Good luck with your operations. Call with any questions. Tom Maunder "Sherritt, Allen" wrote: As per our conversation, the following is an outline of the required changes to the Y-20 P&A and Y-20A forward Program, (Sundry #301-01g, Permit #201-025.) The decompletion of the existing 4 1/2" tubing, to the proposed depth of 12,300' MD, was unsuccessful. The decision has been made to cease decompletion operations and sidetrack above the original kick-off point. The current tubing stump is at 11,657' MD, leaving collapsed tubing @ 11,727' MD and a fish across the production packer @ 12430' MD. An attempt to inject into Y-20 was unsuccessful, however the integrity of the g 5/8" casing was confirmed, as the g 5/6" casing held 3000 psi for 30 minutes. The P&A "bullhead" cement job can not be accomplished without the ability to inject into the original well bore. Therefore an EZSV/bridge plug, 7" 150' liner lap cement and 9 578" x 7" liner top packer will be used to fulfill the Y-20 P&A requirements. A bridge plug has been set @ 11,640' MD, putting the new KOP @ 11,600' MD. Forward plan is to set a whipstock, kick-off drilling out into the Kingak JD formation, holding angle @ -55 degs. The 6 1/2" hole will TD in a siltstone just above the Sag River Formation, @ -12,220' MD / 8817' TVDss, (-620' of 8 ~/2" to be drilled.). There are no proposed faults in this interval and lost circulation is not expected. An FIT to 12, 5 ppg will be performed after drilling 20' of new formation, (307 bbi kick tolerance.) A 7" 26# L-60 drilling liner will be run from 12,220' MD tied back into the 9 5/8" casing to 11,450' MD, (150' liner lap.) The liner will be cemented in place with ~41 bbis of 15. 8 ppg class G cement. This will provide I of 2 2/27/01 11:33 AM H.e: t,iRarlges tO Y-ZU/~, I-'ermK ~ZUYU>'O sufficient excess to ensure cement across the liner top packer, @ 11,450' MD. Drilling out the 7" shoe, the new directional plan will tie into the original Y-20A plan at Target point #1. The BHL, targets and trajectory are unchanged from this point forward. There is only a minor change to the cement volumes required on the 4 1/2" liner, (< 10 bbls.) As we discussed, with the Potential of lost circulation in the 6 1/8" hole and the probability of having to perform a down squeeze "top job" on the 4 1/2" liner lap to achieve the P&A, the 7" cement job will provide a more reliable solution for the P&A of Y-20. Hopefully I have covered everything, if you have any questions, comments or concerns, give me a shout. As soon as t have completed the "new" proposed completion drawing, I will fax you a copy. Thanks, Allen Sherritt BP Alaska Drilling and Wells * (907) 564-5204 (Direct) * (907) 240~8070 (Mobile) * sherrija@bp.com * (907) 564-4040 (Fax) * MB 6-3/681B Tom Maunder <tom maunder@admin.state.ak, us> Petroleum Engineer Alaska Oil and Gas Conservation Commission 2 of 2 2/27/01 11:33 AM BII, II ~1 lBIIIIlil~ 1 III1:1 lB JAN o. 2001 Alaska Oil & Gas Cons. Comrnissio/~ Anchorage BP Exploration / ARCO Alaska Inc. To: From: Subject: Reference: Tom Maunder - AOGCC Date: January 15, 2001 Allen Sherritt 7ES Operations Drilling Engineer Y-20 Application for Sundry Permit - P&A for Sidetrack Operations APl #50-029-21587-00 Sundry approval is requested for the proposed DS Y-20 perforation P&A. Y-20 is a horizontal producing well that was completed in May of '86. In 1987, while attempting to obtain pressure static data, 2 amerada pressure gauges and 3 cutter bars where left in the tubing at 12,359' (production packer at 12430'.) All subsequent fishing attempts were unsuccessful. Additionally, the tubing is collapsed below the sliding sleeve at 11,723'. It is believed this occurred during a mud acid/N2 treatment in 1992. The job was cut short due to excessive inner annulus pressures. A camera was run in '97 to assess the tubing obstruction, and confirmed that the first joint below the sliding sleeve was collapsed. The area is small enough to hang 1-11/16" tools. The well has been shut-in since December of 1996. The purposed sidetrack will replace the current well bore with an extended horizontal well bore approximately 6021 feet from the original well, to recover the remaining Y-20 and surrounding area reserves. The Y-20A sidetrack is currently scheduled for Nabors 7ES beginning around February 10, 2001. The pre-rig work for this sidetrack is planned to begin as soon as the attached Application for Sundry is approved. Below is an outline of the proposed P&A and sidetrack operations. Pre-Riq Work: 1. O Perform injection test to confirm injection rates for up coming rig P&A. T x IA are in communication due to collapsed tubing at 11,740' MD. Note: The results of this test will determine required rig P&A operations for Sundry application. Please schedule this test at your earliest convenience. Wait for Approved Sundry prior to completing the remainder of pre-rig work. . . RU slickline and drift tubing for upcoming tubing cut. RU E-line. Chemical cut the 4½" L-80 tubing at +/-11,718' MD (as per the 5/29/86 Tubing Summary, this is -5' down into the 10' pup joint of 4-1/2" tubing immediately above the Otis Sliding Sleeve). On 5130197, a video log was run to assess the tubing obstruction at -11,723' MD. The video showed an egged shaped collar in the 10' pup joint immediately above the Otis Sliding sleeve and the 10' pup joint immediately below the sleeve was collapsed. Displace the well to clean seawater by circulating down tubing through the tubing cut. Continue to circulate until clean seawater returns to surface. Freeze protect top 2200' MD with diesel. The well should not be left with methanol as a freeze protect fluid, diesel only. Note: The integrity of the 9 5/8" annulus cannot be confirmed due to open perforations and the collapsed tubing. The 9 5/8" will be tested with the rig. STATE OF ALASKA ALASK~ .L AND GAS CONSERVATION COMI APPLICATION FOR SUNDRY APPROVAL 310N 1. Type of Request: [] Abandon . [] Suspend [] Plugging [] Time Extension [] Perforate [] Alter Casing [] Repair Well [] Pull Tubing [] Variance [] Other [] Change Approved Program [] Operation Shutdown [] Re-Enter Suspended Well [] Stimulate Plug Back for Sidetrack Name of Operator BP Exploration (Alaska) Inc. 5. Type of well: [] Development [] Exploratory [] Stratigraphic [] Service Address P.O. Box 196612, Anchorage, Alaska 99519-6612 Location of well at surface .,//' ,,/' 1440' SNL, 347' WEL, SEC. 33, T11N, R13E, UM At top of productive interval 1903' SNL, 1087' WEL, SEC. 05, T10N, R13E, UM At effective depth 2547' SNL, 1950' WEL, SEC. 05, T10N, R13E, UM At total depth 2547' SNL, 1950' WEL, SEC. 05, T10N, R13E, UM 6. Datum Elevation (DF or KB) KBE = 89.03' 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number Y-20 9. Permit Numb, e,r 186-084 10. APl Number 50- 029-21587-00 v" 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool 12. Present well condition summary .,// Total depth: measured 13866 feet /' true vertical 9012 feet Effective depth: measured 13866 feet true vertical 9012 feet Casing Length Size Structural Conductor 110' 20" Surface 3095' 13-3/8" Intermediate Production 12656 9-5/8" Liner 1436' 4-1/2" Plugs (measured) Junk (measured) Obstruction in tubing at 11740' (Approx.) (02/97) Camco Fish at 12359' (06/87) Cemented MD TVD 8 cu yds Concrete 110' 110' 4389 cu ft Permafrost 3095' 2697' 920 cu ft Class 'G' 12656' 8983' Uncemented Slotted Liner 12430' - 13866' 8946' - 9012' Perforation depth: measured Slotted Interval: 12659'- 13822' true vertical Slotted Interval: 8983' - 9011' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 to 12430' Packers and SSSV (type and measured depth) 9-5/8" packer at 12430'; Otis SSSV LN at 2149' JAN J 9 2001 Alaska Off & Gas Cons. C°mrnission Anchorage 13. Attachments [] Description Summary of Proposal 4. Estimated date for commencing operation January 29, 2001 16. If proposal was verbally approved Name of approver Date Approved Contact Engineer Name/Number: Allen Sherritt, 564-5204 [] Detailed Operations Program [] BOP Sketch Status of well classifications as: [] Oil [] Gas [] Suspended Service Prepared By Name/Numbec Terrie Hubble, 564-4628 17. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed DanStone ~------~.,,.....~.,, ,~ Title Senior Drilling Engineer Date I?t-'tI ~ Conditions of Approval: NotifYPlugCOmmission,SOintegrity _~"'/ representatiVeBoP Test may/N,~,'witneSs '~Location'--~c~earance¥ °~'' ~''' ~ ~' ¼~,.k-i ApprovaII No. Mechanical Integrity Test Approved by order of the Commission ~,.~L.,Cx.~. Subsequent form required 10- 1..[~.) ~ Commissioner Date Form 10-403 Rev. 06/15/88 Submit In Triplicate 5. O Test the 9-5/8" mandrel packoff and tubing hanger seals to 5000 psi for 30 minutes. 6. O Bleed tubing and annuli pressures to zero. Set a BPV in the tubing hanger and test from below to 1000 psi. Secure well. Remove the well house and flowlines. If necessary, level the pad. Please provide total well preparation cost on the handover form. Ric~ Operations: 1. 2. 3. 4. 5. 6. 10. 2. 14. 15. 16. 17. 18. RECEt c'E' MIRU Nabors 7ES. ,./,'qN ]. q~ 2001 CirculateNipple down°Ut tree.freezeNipplePr°tecti°nup andandtestdisplaCeBoPE.Well to seawater. Set TWC. Alaska Oil & Gas Cons. Commissio¢~ Anchorage Pull and lay down 4-1/2" tubing from E-line chemical cut at -11,718' MD. RIH with 40' of washpipe with overshot and outside cutter. Washover tubing and perform outside cut below collapsed tubing at -11,727'. POOH. RIH 4" DP and overshot to tubing stump. RU E-line and perform cut at -12,300' MD, (do not tag fish at 12,359' MD). POOH. MU 9-5/8" window milling assembly and RIH to ~12,250', (-50' below window point.) POOH. * Notify the field AOGCO representative with intent to plug and abandon * RIH and set 9-5/8" EZSV to position top of whipstock at _+12,200' MD. PU out of EZSV and test 9 5/8" casing to 3000 psi for 30 min. ,/, Sting into EZSV with running tool, establish injection below packer and displace 33 bbls cement (includes 5 bbls for squeeze into formation.) POOH and lay down running tools. RIH with 9-5/8" Baker bottom-trip anchor whipstock assembly. Orient whipstock as desired and set on bridge plug. Mill and dress window in 9-5/8" casing at -12220' MD. POOH. RIH with,,6-1/8" drilling assembly (MWD/GR/Res)to whipstock. Perform FIT to 9.5 ppg. Kic,k, off and dril! the 6-1/8 production section as per directional plan in Zone 4, to an estimated TD of +18,210 MD (9062 TVD). , .... Run and cement a 4-1/2 12.6# production liner, fully cemented into the 9-5/8 casing liner lap, -12,070 MD. Displace well to clean seawater. POOH. Test the 4-1/2" x 9-5/8" casing from the 4-1/2" landing collar to surface to 3000 psi for 30 minutes.. RIH with 2-1/2" perf guns conveyed on 2-3/8" X 4-1/2" DP. Perforate _+1500' of selected interval w/___600 psi overbalance to the reservoir. Monitor well and POOH LD DP. Run 4-1/2", 12.6# L-80 completion tying into the 4-1/2" liner top. Set packer and test the tubing to 3500 psi and annulus to 3000 psi for 30 minutes. Nipple down the BOPE. Nipple up and test the tree to 5000 psi. Freeze protect the well to -2200' and secure the well. Rig down and move off. Post-Rig Work: 1. MIRU slickline. Pull the ball and rod / RHC plug from 'X' nipple below the new production packer. Install gas lift valves. Estimated Pre-Rig Start: 01/29/01 Estimated Spud Date: 02/10/01 Allen Sherritt Alaska Drilling and Wells Operations Drilling Engineer 564-5204 TREE: 4" CIW WELLHEAD: GRAY ACTUATOR: AXELSON SMALL CMT'd 13-3/8", 72#/ft, I L-80, BTRS I 3095 IKOP 1: 400' I ANGLE:43° to 54° I I 4-1/2", 12.6~/ft, L-80, IPC AB MOD BUTT TUBING TUBING ID: 3.958" CAPACITY: 0.0152 BBL/FT WARNING ! Obstructed Tubing 11,740' WARNING ~ 6/26/87 CAMCO FISH IN HOLE @ 12359 WLM -SEE TELEX FOR DESCRIPTION Y-20 KB. ELEV = 89.03' BF. ELEV = 51.13' SSSV LANDING NIPPLE I Z149' (OTIS)(3.813" ID) I GAS LIFT MANDRELS (OTIS LBD W/RA LATCH) N' MD(BKbl) 1VL)ss 8 3523 2901 7 6443 4926 6 8370 6286 5 9498 7094 4 10157 7585 3 10891 8049 2 11549 8436 1 11656 8502 SLIDING SLEEVE 4-1/2" OTIS (3.813" MIN. ID) I11723' 11777' 11817' 12418' 12430' 4-1/2" "X" NIPPLE (OTIS) (3.813" ID) 4-1/2" "X" NIPPLE (OTIS)(3.813" ID) Tubing Seal Assy 9-5/8" PACKER (TIW) 9-5/8", 47#/ft, L-80, BTRS J 12646' & NSCC MAXIMUM HOLE DEV: 88° at 13,800' DEVAT 8800 TVD 72 ° DEV AT 13866' TD IS 88° Solid 4 1/2" - 13.5#L-80 AB Mod. BTR Liner TIW Packoff Bushing 4-1/2" , 13.6#/ft, NB FL 4S, SLOTTED LINER SLOTTED LINER DEPTHS TOP: 12659' BOTOM: 13823' HORIZONTAL SLOTTED LINER DATE 5/31/86 11/25/89 2/21/97 12/21/98 REV. BY ).ROMBER6 v~MM SRB SRB COMMENTS COMPLETION PUT ON MACINTOSH Tubing Obstruction / Old Fish PC Revision PRUDHOEBAYUNIT WELL: Y-20(5-10-13) APl NO: 50-029-21587 SEC 33; TN 11; RGE 13 BP Exploration (Alaska) RECEIVED JAN Alaska Oil & Gas Cons. Commission Anchorage TREE: 4" CIW - 5M WELLHEAD: Gray - 5M Y-=0A Proposed Co,npletion GL Elevation = 30.2' Nabors 7ES RKB = 59.5' 4-1/2" 'X' Landing Nipple with 3.813" seal bore. [ 2200' 13 318", 72 #/ft, L-80 BTRS [ 3095' J 13 3/8" x 9 5/8", Cement and Arctic Pack. 4-1/2" x 1-1/2" Camco 'MMG' Gas Lift Mandrels with handling pups installed above and below. GAS LIFT MANDRELS . IVD Size 1 ' 1-1/2" 2 ' 1-1/2" 3 ' 1-1/2" 4 (or ljt above 1-1/2" packer) Valve Type _ RP Shear DV DV DV 4-1/2" 12.6# L-80, IBT Mod Tubing RECEIVED JAN 1 9 7_001 Alaska Oit & Gas Cons. commission Anchorage 9 5/8" x 4 1/2" Baker'S' Production Packer" @ -11900' MD 4-1/2" 'X' Landing Nipple with 3.813" seal bore. 4-1/2" 'X' Landing Nipple with 3.813" seal bore. 4-1/2" WireLine Entry Guide spaced-out into liner top. 4-1/2" Liner ZXP top packer and Flexlock hanger. Window Milled from Whipstock Top of Window at +/- 12200' MD EZSV set at +/-12220' MD TOC at +/-12220' MD TOF at +/-12359' MD LinerTopat [ 12430' 9-5/8", 47 #/ft, L80, BTRS ~ & NSCC Slotted Liner at +/-12659' MD to 13,823'MD 4-1/2" 12.6 #/ft, L-80, I 13,866' I 4-1/2" 12.6 #Iff, L-80, IBT-Mod I +/-18221' I : ':~ ~ ;i ~:' :~H°riz°ntal Sidetrack int° Z°ne 4 Sands 11 PRUDHOE BAY UNIT WELL: Y-20A APl #: 50-029-21587-01 Date 1/8/01 Revised by JAS Comments Proposed completion MICROFILMED 9/1 ~/00 DO NOT PLACE ANY NEW MATERIAL IS PAGE STATE OF ALASKA AI.J ..... ,A OIL AND GAS CONSERVATION COMMISS,,..,,-,I REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate X Plugging Perforate Pull tubing __ Alter casing __ Repair well 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. 0. Box 196612, Anchorage, Alaska 99519-6612 5. Type of Well: Development X Exploratory Stratigraphic __ Service 4. Location of well at surface 1440'SNL, 347' WEL, SEC. 33, T11N, R13E, UM At top of productive interval 1900'SNL, 1075' WEL, SEC. 05, TION, R13E, UM At effective depth 78'SNL, 4148'WEL, SEC. 04, TION, R13E, UM At total depth 2727' SNL, 1936' WEL, SEC. 05, T1ON, R 13E, UM Other~ 6. Datum elevation (DF or KB) % KBE=89.03 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Y-20(33-05-10-13) 9. Permit number/approval number 86-84 / 10. APl number 50- 029-21587 11. Field/Pool Prudhoe Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: measured Length .- 13866 feet 9011 feet 13866 feet 9011 feet Plugs (measured) Junk (measured) Size Cemented See Attachment I Slotted linear Intervala: 12659 to 13822 true vertical subsea Tubing (size, grade, and measured depth) 4 1/2" 12.6 @ 12430'MD Packers and SSSV (type and measured depth) Packer@ 12430'MD, SSSV@2164 13. Stimulation or cement squeeze summary See Attachment II Measured depth True vertical depth BKB RECEIVED 00T - 7 Alaska 0il & 6as 0ohs. 6omr~issiO~. 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 670 2258 643 1330 / 1100 .' ~' 3040 440 2030 Tubing Pressure 241 229 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas m Suspended Service 17. I hereby certify th~ the fore,going is true and correct to the best of my knowledge. O~ ,n, }- i ,",)'~ ~'U~,~.-~ Title Senior Technical Assistantl Signed ,/M/v~_(J,~,, (" ' Form 10-40,~ Rev 06/15/88 T Date //'~//~;//,~,~ SUBMIT IN DUFCLI6ATE ~ WELL Y-20(33-05-10-13) ATTACHMENT I CASING Structural -- Conductor 110' Surface 2956' Intermediate 5356' 3261' Production Liner 1436' LENGTH SIZE 20" 13 3/8" 9 5/8" 9 5/8" __ 4 1/2" CEMENT MD TVD 4389 c.f. Permafrost 920 cfi. Class "G" w/1% CFR+.08% HR7 Slotted Uncemented 148' 148' 3095' 2697' 5395' 4311' 9395'-12656' 7110'-8983' 12430'-13866' 8946'-9013' fjh 7/01/93 RECE[VF.D OC'.'F---'/ 1993 Alaska Oil & Gas Oons. C;ommissio~' Anchorage 7/18&19/92 WELL Y-20(33-05-10-13) STIMULATION OPERATION ATTACHMENT II Performed a MUD ACID/FOAM DIVERTER Treatment using the following fluids: FLUIDS PUMPED: 12500 GAL, 11.1% HCL, 75PPM FE .4% ACI-274, .4%NE-41,24# FERROTROL 210 1 2500 GAL, 11.4% HCL, 68 PPM FE .4% AC1-274, .4%NE-41,24# FERROTROL 21 0 1 2500 GAL, 6.02% HCL/1.6% HF, 8.95 PPM FE, .4% AC1-274,.6% NE-41, .2% IVlS-1 O, 24# FERROTROL-21 0, 10# F-300 1 2500 GAL, 5.82% HCL/1.6% HF, 8.96 PPM FE, .4% AC1-274,.6% NE-41, .2% MS-1 0, 24# FERROTROL-210, 10# F-300 25000 GAL 2% NH4CL, NE-41 7500 GAL GEL WATER W/20 # GEL, 60 GAL FAW-1 6 1 92 BBL SEAWATER FLUSH 850,000 SCF N2 fjh 7/01/93 R EC E IV OCT-~-f ~993 Aiaska 0il & Gas Cons, Anchorage Standard Alaska Production Company 000 Eosl Ben,on Boule,,. PO Bo~ 196612 Anchorage Alaska 99519-6612 1907} 564-511 I TO: DALLAS ARCO CHEVRON EXXON TEXACO MOBIL PHILLIPS STATE OF ALASKA INDEXED STANDARD ALASKA PRODUC-~ION Date: 09/21/87 TI: 78183 REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning It to this office: ~'B-27 Flowing/Gradient 09/07/87 ~ B-27 " " 09/13/87 "B-28 Static Gradient 09/06/87 ---B-29 Flowing Gradient 09/10/87 "-J-2i Static Gradient 09/12/87 '"J-23 " " 09/10/87 ~ K-1 " " 08/21/87 '"' Y-20 " " 09/03/87 '"Y.20 " " 09/06/87 ~Y-21 " " 09/08/87 ~ Kuparuk State 22-11-12 Static Gradient Camco I1 Camco Camco Camco Camco C amc o Camco Camco Camco 08/26/87 Camco Rece i ved Date ' A~sk~ Oi! & ~s O0ns. Gommisslor~ Anchorag~ Victoria Aldridge INFORMATION CONTROL Well Records LR2-1 Standard Alaska Production Compan) 900 Eas! B~nson Boulevard P.O. Box 19661:2 Anchoroge, Aloska 99519-66 (907) .564-51 ! ! 1 ARCO CHEVRON EXXON INDEXED STANDARD ALASKA PRODUCTION TEXACO Date: 0 6 / 30 / 87 TO: MOBIL Tt: 78013 PHILLIPS STATE OF ALASKA GEOSCIENCES REFERENCE: SAPC CASED HOLE FINAL LOGS The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning It to this office: F-14 M-6 U-4 Q-1 Y- 20 Temp 0 6 / 15 / 87 # 1 SURF- 2000 Camco 5" Flowmeter Water Hold Up 06/10/87 #1 10950-11550 Camco 5" Injection Profile 06/1 2/87 #1 11 290-11719 Camco 5" Prod. Prof. Flowmeter Temp. 06/13/87 #1 9250-9600 Camco GR 06/09/87 #1 11500-1 2300 Camco 5" 1! Received a Oi &A6n~ShoOr~;. Commission Celina Plack I NFORMAT I ON CONTROL Date Wel I Records LR2-1 A unit at lhe original Slonda,d C~I Company Founded in Cleveland. C~io. ,n 1870 $~andard Alaska P~oduc~ion Cornpm 900 Fost B~n~on Boulevord PO. Box 196612 Anchoroge, AIosko 99519-6612 1907) .564-51 ! I INDEXED DALLAS ARCO CHEVRON EXXON STJ%N DJ%I~D ALASKA PRODUCTION D.te: 06/24/87 TEXACO ZO: TI: 77994 MOBIL , PHILLIPS STATE OF ALASKA REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA The following material Is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office: F-31 Static Gradient 06/16/87 Camco R-19 Static Gradient 05/15/87 Camco Y-20 Flowing Gradient 06/07/87 Camco Y- 20 BHPD 06/07/87 Camco Received Dote u,,.! oI ~h~ o..tl.,,.,I .%,~J,,¢l[,,,I ~_~1 C ~ AJaska 0il & (3as Cons. Commission Anchora~ Celina Plack I NFORMAT I ON CONTROL We I I Records LR2- f Slondard AIo,l~a Production Company. ~ Eosl J~nson Ancho~oge. Alosko ~bl9-661~ ~907) 564-51 I I INDEXED DALLAS ARCO ST/~N D~RD CHEVRON AL ASI/~'X PRODUCTION EXXON Date: 06/15/88 TEXACO 78958 TO: TI: MOBIL PHILLIPS STATE OF ALASKA ARCHIVES REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA . The following material Is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office: Y-20 Pressure Build-Up 05/23/88 Camco JUN 2 0 ]988 Alaska 0il & Gas Cons. Commission Anchorage Recelved Date A un,t ol ~he o,,9,or~,l ~'.,,d~,d C),l Co.np¢,,,y fOv,,ct~'¢! ,~ (-I¢.eln,,,I ('%~,n ,,, Jennifer Dietz I NFORMAT I ON CONTROl_ Well Records LR2-1 Standard Alosl~a Produc lion Company 900 Eos! Benson Boulevard P.O Box 196612 Anchorage. Alaska 99519-6612 (907) 564-5 I I I INDEXED DALLAS ARCO ST~ND~RD CHEVRON ALASKA PI~ODUCTION EXXON Date: 06/08/88 TEXACO 78928 TO: It: MOBIL PHILLIPS STATE OF ALASKA ARCHIVES REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA The following material Is belng submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning It to thls office: Y-20 Y-24 Pulse Test 05/23/88 Camco Pulse Test 05/23/06/01/88 Camco Rece i v~ jUN .... ~. ~..~ 6nmmission Al,2Ska u. ~ ~ Anchorage A un,! o! ,he o"ginol .~tondo,al O~1 Co,-II;~n1, Founded ,n Cle,elond. C~io ,n 1870 Jennifer Dietz ~NFORMAY ~ ON CON/ROI Wel I Records LR2- I .S~o ndo,cl AID r,l~ o P~odu¢lion Componv 900 I~o~t P 0 ~x 196612 A~(horog¢. Alaska ~519-6612 INDEXED DA~I~S ARCO ST/t.N D/~RD CNZv~ON ALASKA PRODUCTION 06/08/88 E ~XiXON Date: TEXACO 78928 TO: TI: MOBIL PHILLIPS STATE OF ALASKA ARCHIVES REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returnlng It to this office: Y-20 Y-24 Pulse Test 05/23/88 Camco Pulse Test 05/23/06/01/88 Camco Rece I v( Jennifer Dietz INFORMAl ION CONiROL Wel I Records LR2-1 Slandard Alaska Produc'lion Compan 900 Ease Ben$on Boule,.,,~ P.O. Boa 196612 Anchorage. Alaska 99519-66 lq07) 564.511 I INDEXED DALLAS ARCO CHEVRON EXXON TEXACO Date: 11/05/86 lO: MOBIL- TI: 77490 PHILLIPS STATE OF ALASKA GEOSC IENCES STANDARD ALASKA PRODUCTION REFERENCE: SAPC CASED HOLE FINAL LOGS The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this offlce: - D-11 Caliper 10/27/86 #1 29-9510 Camco 5" G-19 CET 06/27/86 #1 10330-11550 Sch 5" M-4 Perf. Record 05/25/86 #1 9370-11660 Sch 5" M-17 Perf. Record 06/01/86 #1 11000-11749 Sch 5" N-7 Packer Depth 05/21/86 #1 9400-10450 Sch 5" R-12 Perf. Record 06/03/86 #1 10400-10968 Sch 5" R-23 Perf. Depth Record 05/06/86 #1 11490-11900 Sch 5" U-12 Perf. Record 05/30/86 #1 10800-11100 Sch 5" X-5 CET/GR 05/10/86 #1 9468-10700 Sch 5" Y-20 GCT 06/21/86 #1 Surf-12107 Sch 5" Y-23 GCT 06/23/86 #1 -8-11566 Sch 5" Rece i ved Date Iround~ · ,--~o 0il & Gas Cons, C0mmiss ~'~"~'"' Anchorage ,ondord Chi [o,nponl d. ~,o. ,n IB70 Vict~ Aldridge I NFORHAT I ON CONTROL Wel I Records LR2-1 September 29, 1986. Telecopy No. (907) 276-7542 ADMINISTRATIVE APPROVAL NO. 213.1 Re.~. Standard Alaska Production Company request to waive productivity pro£iles, Prudhoe Bay Unit wells JX-2, B-30, Y-20, G-29, G-27, Y-21. Mr. T. N. Tyler Manager Reservoir Operations Standard Alaska Production Company P. O. Box 196612 Anchorage, AK 99519-6612 Dear Mr. Tyler: By letter dated' September 24, 1986, Standard Alaska Production Company has requested waivers of productivity profiles required by Conservation Order 165, as amended by Conservation Order No. 213, in wells JX-2, B-30, Y-20, G-29, G-27 and Y-21. The Alaska Oil and Gas Conservation Commission has reviewed the need for productivity profiles in these wells. The Commission has determined that these data are not necessary for proper monitoring of the Prudhoe Oil Pool performance. Therefore, by administrative approval authorized by Conservation Order 213, Rule 2, the Commission waives productivity profile requirements in Prudhoe Bay Unit wells JX-2, B-30, Y-20, G-29, G-27 and Y-21. Sincerely, ~ Lonnie C. Smith Commissioner jo/3 .AA213 PO Box 196612 A~cho~,oge. Alo~o ~.519-~1~ (907) .'~4-5 ! I I INDEXED DALI. S ,A~CO CHEVRON EXXON STANDARD ALASKA PRODUCTION Dote: 07/29/86 TEXACO TO: TI: 77227 MOBIL pHZLLZps --GEOSCIENCES REFERENCE: SAPC FINAL DATA - PRESSURE SURVEY DATA The roi Io~Ing materiel is being submitted herewith. Please ockno~ledDe receipt by signing a copy of thls lei-let end returning It to this office: ---A-22 ?A-30 ~A-30 C-1 lJ G_i~- _ G-16 ?, H-6 --- H-6 H-24~ -- H-25 ? M-4. --N-9 -R-1 --S-2 - S-2 --S-10 -- S-13' -S-15 ~-X-25 J-2_0 Rece ! ved DaCe Static 07/01/86 GO BH Pressure data 06/19/86 GO PBU 06/18/86 GO Static 06/20/86 Camco Static 07/03/86 GO Static 07/05/86 Camco Static 06/21/86 Camco Static 06/24/86 Camco Static 07/01/86 Camco Static 07/01/86 Camco Static 06/07/86 Camco Static 06/16/86 Camco Static ~ 06/20/86 Camco Static 07/0g/86 Camco Static 07/06/86 Camco Static 07/03/86 Camco Static 07/07/86 Camco BHPD & PBU 07/05/86 GO BHPD & PBU 06/23/86 GO BHPD & Flow test & PBU 06/15/86 GO Victoria Aldridge LR2-1 I NFORMAT I ON COf~TROL Wel I Records LR2-1 Standard Ale Pro<Juction C .y 900 East Ben$o,. -oulevord P_O. Box 196612 Anchorage. Alaska 99519-6612 (907) 564-5 I I 1 INDEXED TO: DALLAS ARCO CHEVRON EXXON TEXACO MARATHON MOBIL PHILLIPS GEOSCIENCES REFERENCE: SAPC FINAL DATA ~"i'AN DARD ALASKA PRODUCTION Date: 06/13/86 T~: 77113 The followlng material Is being submi~red herewlth. Please acknowledge recelpt by slgnlng a copy of thls letter and retuAnlng It to this offlce: Y-20 TELECOMWD Gamma 8700-8990 5" 05/24/86 Y-20 TELECOMWD Gamma 11850-13865 2" 05/24/86 Y-20 TELECOM~D Gamma 11850-13866 5" 05/24/86 Rece I ved Date Victoria Aldridge LR2-1 I NFORHAT I ON CONTROL Wel I Records IR2-1 900 Eo~ Ik,~,o~ ~c d Ar, cho~oge. A~osko 1907) 56~-51 i ! INDEXED DAJ~LAS ARCO CHEVRON EPCXON TEXACO lo: MAP, ATHON MOBIL PHILLIPS = STATE OF GEOSCIENCES REFERENCE: b~I'ANDARD ALASKA PRODUCTION Date: 06/10/86 TI: 77105 TELECO MAGNETIC DIRECTIONAL SURVEY(S) The following m~terlai Is being submitted herewith. Please acknowledge receipt by signing a copy of this letter end returning It to this office: H-21 H-22 Y-20 Y-20 Y-20 Teleco Survey Job #496 Teleco Survey Job #500 Teleco Survey Job #495 MWD & Single Shot GCT Job # 71557 05/12/86 To AOGCC 06/13/86 05/28/86 To AOGCC 07/02/86 05/28/86 05/27/86 06/08/86 Aiaska Oil & Gas Cons. Commission Anchorage Rece I ved Victoria Aldridge LR2-i ~NFCRHAI ~ ON C(~IROL We~ ~ Records tR2-~ STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION CG,v, MISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL l~ GAS [] SUSPENDED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number Standard Alaska Production Company 86-84 3. Address 8. AP~ Number P. O. Box 196612 Anchorage, Alaska 99519-6612 50-029-21587 4. Location of well at surface 9. Unit or Lease Name '~-~-'~'--'~-~- Prudhoe Bay Unit 1440' SNL, 347' WEL, Sec. 33, TllN, R13E, UM At Top Producing Interval I'!VE'"~IFIED 10. Well Number 1900' SNL, 1075' WEL, Sec. 5, T10N, R13E, UM iSurf.~ Y-20 (33-5-10-13) PBU At Total Depth~-- L.~_~/~'H'-.'-"'~ 11.F ield and Pool Prudhoe Bay Field 2727' SNL, 1936' WEL, Sec. 5, T10N, R13E, UM 5. Elevation in feet (indicate KB, DF, etc.) I 6. Lease Designation and Serial No. Prudhoe Bay Oil Pool 89.03' KBE I ADL 28289 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+ l-VD) 19. Directional Survey I 20. Depth where SSSV set 21. Thickness of Permafrost 13866'MD 9011'TVD 13866'MD 9011'TVD YESJ~ NO[]I 2164feetMD 1990' 22. Type Electric or Other Logs Run Teleco MWD Gamma 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" Conductor Surface I10' 8 cu. yds concrete 13-3/8" 72# L-80 Surface 3095' 17½" 4389 cu. ' .ft. Permaf]:ost cement 9-5/8" 47~ L-80NSCC Surface 5395' 12%" 9-5/8" 47~ L-80 Butl 9395' 12656' 12%" 920 cu. 'fL-. Class G~r/i%CFR +.08% HR7 4%" 13.6# iABFL-4S 12430' 13866' 8~'' Slotted, uncemented 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) 4~" 12 6# 12430 ' MD 12430 'MD Slotted Liner: ' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. Interval: i2659' to 13822' DEPTH INTERVAL (MD) AMOUNT& KIND OF MATERIAL USED 52 slots per foot 13-3/8" x 9-5/8' Annulus; D.ownsqueeze annulus with 300 sx. Permafrost slot size is 1/8" X 2" C.p_mp_n'l-_ fn]]~w~d by 27. PRODUCTION TEST ,, -- Date First Production I Method of Operation (Flowing, gas lift, etc.) I Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS-OILRATIO TEST PERIOD II~ FIowTubing Casing Pressure CALCULATED~ OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE ~' . 28. CUR E DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. R£C£1V£D J U k 0 9 1986 N~horag~ Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE 29. " 30. · GEOLOGIC MARKERs FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Sag 12210' 8890 ' . Shublik A 12320' 8921' Zone 4 12670' 8984' (Top Ivishak/ Sa(lerochit) 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Division 3/~~/ ~ Drilling ~(O Signed ' ~-~ .~/~_.~¢~ Title Engineer Date 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- lng 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 Sohio Daily Drilling Report -- PBU April 29, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 Current Opera ti on: 0600 Depth: 1545' Day: 1 24-Hour Ftg: 1437.' Water Used: 1500 Trip for bit. Directional Drilling 17-1/2" hole at 1545'. MUD TYPE-Spud WT'8.9 VIS'205 PV'20 YP:48 FL'20 SOLIDS'5 TEMP'54°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 1 633 4.7 533.1 Ig 133 . 1 3 993 15.3 541.7W 987 .11 5 1353 27.5 541.7 1333 .82 S4' W2 3.7 S52 W39 3.1 S140 Wll9 2.0 0576H: Sohio Daily Drilling Report -- PBU April 30, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 · 0600 Depth' 2726' Day' 2 24-Hour Ftg' 1181' Water Used' 2800 Current Opera ti on- POH. RIH and Dyna-drill surface hole to 2286' MD. PON change bit. RIH and Dynadrill to 2726'. POH. MUD TYPE-Spud WT'8.9 VIS'186 PV'20 YP-56 FL'12.6 SOLIDS'6 TEMP'48°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES 5 1359 22j5 S41JTW 1333 182 140 ll9 7 1729 29j4 S45j2W 1666 343 256 232 9 2107 38jl S42j8W 1980 552 407 376 ll 2485 42~8 S44j2W 2268 796 585 544 12 2656 45~ 4 S43~ 5W 2390 915 671 626 DLS 2.0 2.0 2.3 1.3 1.3 0576H' Sohio Daily Drilling Report -- PBU May l, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 3112' Day: 3 24-Hour Ftg: 386' Water Used: 800 Current Operation: N/U BOPE. RIH$ Drill to 3112'. Short trip. CBU. POH. Rig up and run 13-3/8" casing to 3095' Mix and pump 4641 sacks Permafrost cement' Land casing. ~/U BOP's. MUD TYPE-Spud WT:8~9 VIS:145 PV:20 YP:52 FL:12.4 SOLIDS:5.5 TEMP:°F ! SURVEY MD ANGLE DIRECTION TVD SECTION COORD! NATES DLS 13 2861 4658 S4559W 2533 1063 778 737 14 3051 4654 S46:6W 2663 1200 872 830 1.1 0.3 0576H: Rig- AUDI #2 Well- Y-20 (33-05-10-13) Sohio Daily Drilling Report -- PBU May 2, 1986 at 0600 hours AFE # 120472 0600 Depth' 3320' Day: 4 24-Hour Ftg' 216' Water Used' 1600 Current Operation- RIH. N/U and test BOPE. P~ck up 12-1/4" BHA and RIH. Test casing to 3000 psi. Dr~ll out cement, float equipment and lO' new hole. Perform F.I.T. to 12.4 ppg EMW. POH change BHA. MUD TYPE- WT-8.8 VIS:31 PV'5 YP:5 FL'21 SOLIDS:6 TEMP' N/A°F ?. SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES 15 3281 47.7 S42.8W 2820 1368 991 949 0576H' DLS 1.3 Sohio Daily Drilling Report -- PBU May 3, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 5746' Day: 5 24-Hour Ftg: 2418' Water Used: 800 Current Operation: Drilling. Drill to'4776'. Trip for bit and BHA. Drilling at 5746'. MUD TYPE-LSND WT:9.4 VIS:35 PV:5 YP:9 FL:22 SOLIDS:8.5 TEMP:68°F SURVEY MD ANGLE DIRECTION TVD SECTIO~ COORDINATES DLS 16 3676 47.1 S42.8W 3087 1658 17 4149 46.1 S44.9W 3412 2000 18 4619 44.1 S45W 3744 2333 19 5182 43.1 S46.6W 41 51 2721 20 5655 47.5 S51 . 2W 4484 3057 1205 1146 O. 6 1453 1384 O. 4 1687 1621 0.4 1955 1901 O. 2 2175 2155 1.1 0576H: Sohio Daily Drilling Report -- PBU May 4, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 133-05-10-13) AFE # 120472 0600 Depth: 6282' Day: 6 24-Hour Ftg: 536' Water Used: 600 Current Operation: RIH. Drill to 5764' Trip for BHA. Dyna:~drill to 5896' Trip for BHA. Ream Dyn~drill run. Drill to 6282'. Trip fo~ bit and BHA. MUD TYPE-DISP WT:9.4 VIS:34 PV:7 YP:6 FL:12.2 SOLIDS:8 TEMP:72°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 21 5894 47.3 S42.8W 4646 3233 2295 2284 2.7 22 6222 49.7 S43.1W 4863 3477 2475 2451 0.7 0576H: Sohio Daily Drilling Report -- PBU ~.lay 5, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 7208' Day: 7 24-Hour Ftg: 926' Water Used: 600 Current Operation: POH for BHA. RIH and drill to 6694'. Trip for BHA. Drill to 7208'. POH for bit. MUD TYPE-DISP WT:9.5 VIS:43 PV:IO YP:IO FL:8.4 SOLIDS:8.2 TEMP:72°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 23 6448 49 S45.6W 5011 3648 2597 2571 24 6665 47.4 S47.7W 5155 3810 2708 2689 25 6984 46.2 S48W 5374 4042 2864 2861 0.9 1.0 0.3 0576H: Sohio Daily Drilling Report -- PBU May 6, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 133-05-10-13) AFE # 120472 0600 Depth: 8450' Day: 8 24-Hour Ft§: 1842' Water Used: 800 Current Operation: Drill ing. Drill to 7987. Trip for bit and BHA. Drilling at 8450'. MUD TYPE-DISP WT:9.5 VIS:40 PV:12 YP:12 FL:6.0 SOLIDS:9 TEMP:69°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 26 7357 44.5 S45.6,~ 5636 4388 27 7640 44.4 S45.9W 5838 4506 28 7922 43.2 S46.2W 6041 4701 29 8207 43.8 S46.6W 6248 4897 3046 3055 O. 6 3184 31 97 O. 1 3320 3337 0.4 3455 3479 O. 1 0576H: Rig: AUDI #2 Well: Y-20 {33-05-10-13) Sohio Daily Drilling Report -- PBU May 7, 1986 at 0600 hours AFE # 120472 0600 Depth: 9735' Day: 9 24-Hour Ftg: 1285' Water Used: 1400 Current Operation' Drilling. Drill to 8830'. Trip for bit. Drilling at 9735'. MUD TYPE-DISP WT:9.5 VIS:43 PV:12 YP:14 FL:6 SOLIDS:9 TEMP:76°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDI)~ATES 30 8586 44.4 S48.7W 6520 5160 3630 3676 31 9059 44.3 S51.2W 6859 549l 3846 3926 32 9343 44 S50.5W 7062 5689 3772 4079 0576H: DLS j3 j4 j2 Sohio Daily Drilling Report -- PBU May 8, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 133-05-10-13) AFE # 120472 0600 Depth: 10130' Day: 10 24-Hour Ftg: 395' Water Used: 1300 Current Operation: RIH w/ Bit #18. Trip for BHA. Dynadrilled from 9860 to 10,130'. Trip for BHA. MUD TYPE-DISP WT:9.6 VIS:42 PV:IO YP:13 FL:5.2 SOLIDS:9 TEMP:88°F I SURVEY MD' ANGLE DIRECTION TVD SECTION COORDINATES DLS 33 9711 42.1 S51.9W 34 9981 41 S52.2W 7331 7533 5940 6118 4129 4239 4275 .6 4416 .4 0576H: Sohio Daily Drilling Report -- PBU May 9, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 {33-05-10-13) AFE # 120472 0600 Depth: 10950' Day: ll 24-Hour Ftg: 820' Water Used: 1200 Current Operation: Drilling ~ 10950 Bit #19 Ream Dynadrill run. Drill to 10475'~ Trip for BHA. Drilling at 10950'. MUD TYPE-DISP WT:gj8 VIS:43 PV:IO YP:ll FL:5.4 SOLIDS:9.5 TEMP:80°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES 35 10187 43 S49.4W 7686 6256 4326 4523 36 10272 45.4 S50.8W 7747 6315 4364 4569 37 10368 48.7 S50.8W 7812 6385 4409 4623 38 lO510 52.9 S52.9W 7902 6495 4477 4704 DLS 1.3 3.0 3.4 3.1 0576H: Sohio Daily Drilling Report -- PBU May 10, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth' 11,459' Day- 12 24-Hour Ftg' 509' Water Used' llO0 Current Operation: Drilling with Bit //20 Drill to 11,209" Trip for BHA. Test BOPE. Drilling at 11,459'. MUD TYPE-Dispersed WT:9.8 VIS:43 PV'll YP'8 FL'5.2 SOLIDS'12 TEMP-82°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 40 11102 54.1 S54. OW 8251 6971 4760 5095 41 11295 53.7 S56.5W 8365 7126 4849 5223 0576H' .1 1.0 Sohio Daily Drillin9 Report -- PBU ~.~ay l l, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 11,647' Day: 13 24-Hour Ftg: 188' Water Used: llO0 Current Operation: Dynadrilling. Drill to 11580'. Trip for BHA. Dynadrilled to 11647'. MUD TYPE-Dispersed WT:9.9 VIS:42 PV:ll YP:IO FL:5.2 SOLIDS:Il TEMP:78°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 42 11512 53 S57.5W 8494 7298 4944 5369 .5 0576H: Sohio Daily ~rilling Report -- PBU May 12, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12,109' Day: 14 24-Hour Ftg: 462' Water Used' 800 Current Operation: Drilling. Dynadrilled to 11775' Trip for bit and BHA. Ream 11258 to 11647'. Drilling at i2109'. MUD TYPE-Dispersed WT'IO. 1 VIS-45 PV:13 YP-11 FL'4.8 SOLIDS'I 2 TEMP:92°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 43 11113 48.5 S50.8W 8622 1452 5035 5495 3.4 44 11867 53.4 S48W 87l 9 7572 5l ] 3 5586 3.5 45 11960 58.2 S49W 8771 7648 5163 5643 5.0 46 12056 63.2 S49.4W 8818 7732 5218 5707 0576H: Sohio Daily Drilling Report -- PBU May 13, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12294' Day: 15 24-Hour Ftg: 185' Water Used: 800 Current Operation: RIH. Reaming to BTM. Drill to 12294'. Circulate high vis sweep. Trip for BHA. Reaming from 11883 to bottom. MUD TYPE-Dispersed WT:IO.2 VIS:49 PV'I 7 YP:IO FL:4 SOLIDS'I 2 TEMP'88°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDI)~TES · DLS 46 12056 63.2 S49.4W 47 12151 68.4 S49.4W 48 12244 73.4 S49.4W 8818 7732 5218 5707 5.2 8857 7819 5274 5773 5.4 8886 7907 533l 5939 5.4 0576H: Sohio Daily Drilling Report -- PBU May 14, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12417' Day: 16 24-Hou r Ftg: 123' Water Used: 600 Current Operation: R.I.H. Ream from 11883 to 12294. Drill to 12412'. Short trip. Drill to 12417'. Trip for bit and BHA. MUD TYPE-Dispersed WT:10 VIS :47 PV:15 YP:12 FL:3.8 SOLIDS :13 TEMP: 96°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES 49 12332 76.8 S49.7W 8909 7992 5386 5904 DLS 3.4 0576H: Sohio Daily Drilling Report -- PBU May 15, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12534' Day: 17 24-Hour Ftg: ll7' Water Used: 400 Current Operation: R.I.H. w/fishinE) tools. Drilled to 12534. Lost 400 psi pump pressure. POH. Found wash out and twist off in HWDP. Left 949' fish in hole. RIH with fishing tools. MUD TYPE-Dispersed WT:IO. 1 VIS:54 PV:21 YP:17 FL:3.8 SOLIDS:13 TEMP:N/A°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 50 12368 77.6 S49.1W 8916 801 7 5403 5923 5.0 51 12427 79.4 S49.8W 8928 8085 5447 5975 2.8 52 12490 80.7 S49.1W 8939 8148 6487 6022 2.3 0576H: Sohio Daily Drilling Report -- PBU ~-4ay 16, 1986 at 0600 hours Rig' AUDI #2 Well- Y-20 (33-05-10-13) AFE # 120472 0600 Depth' 12550' Day' 18 24-Hour Ftg' 36' Water Used: 4.00 Current Operation- Drilling RIH with fishing string and recovered fish. RIH with new BHA and reamed from 11600' to 12.~34'. Drilling at 12550'. MUD TYPE-Dispersed ~T:lO.2 VIS:49 PV-20 YP-16 FL'3.8 SOLIDS'13.5 TEMP:88°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H- Sohio Daily [lrill~ng Report -- PI~U Hay 17, 1986 at 0600 hours Rig' AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12656' Day: 19 24-Hour Ftg: 107' Water Used: 1200 Current Operation: P.O.H. for Casing. Drilled to 12-1/4" TD at 12656'. Short trip. CBU. POH. MUD TYPE-Dispersed WT:IO VIS:47 PV:18 YP:12 FL:4 SOLIDS:13 TEMP:IOO°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 53 12585 80.8 S48.4~ 8954 8240 5549 6092 0.7 54 12620 80.7 S48.7W 8960 8275 5572 6118 0.9 0576H: Sohio Daily Drilling Report -- PBU ~lay 18, 1986 at 0600 'hours Rig: AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12656' Day: 20 24-Hour Ftg: O' Water Used: 500 Current Operation: Pick up HWDP. Ran 9-5/8" casing to 12646 and cemented with 872 cu. ft. Class G. Installed and tested packoff. Test BOPE. PU 8-1/2'° BHA. MUD TYPE-Dispersed WT:IO VIS:52 PV:19 YP:13 FL:4 SOLIDS:13 TEMP:88°F SURVEY MD A~GLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily Drilling Report -- PBU May 19, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 12656' Day: 21 24-Hour Ftg: ' Water Used: 800 Current Operation: Displace with oil base mud. RIH to FC. Test casing to 3000 psi. Unable to rotate. Clean pits. Take on oil base mud. Displacing hole with oil base mud. MUD TYPE-Oil base WT:9 VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily Drilling Report -- PBU May 20, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth' 12981' Day' 22 24-Hour Ftg' 325' Water Used' 400 Current Operation' Change B.H.A. Displace hole with oil base mud. Drill FC, cement and FS. Drill to 12981'. POH for bit and BHA. MUD TYPE-Drill faze WT:9 VIS-112 PV:30 YP-41 FL-2 SOLIDS:13 TEMP'°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES 55 12676 81.6 S47.7W 8969 8330 5609 6160 56 12772 84.6 S47.3W 8980 8426 5673 6230 57 12865 87.6 S47.7W 8987 8518 5736 6298 58 12923 89.6 S47.3W 8988 8576 5775 6341 59 12960 90.8 S48W 8988 8613 5800 6368 DLS 2.4 3.1 3.2 3.5 3.7 0576H' Sohio Daily Drilling Report -- PBU May 21, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 133-05-10-13) AFE # 120472 0600 Depth: 13394' Day: 23 24-Hour Ftg: 413' Water Used: 400 Current Operation- Drillin§. RIH wi th new BHA. Drilling at 13394'. MUD TYPE-Drill faze WT-9.0 VIS'lO7 PV-33 YP'47 FL-2 SOLIDS:13 TEMP:98°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDI NATES 59 12960 90.8 S48W 8988 8613 5800 6368 60 13035 9]. l S47.7W 8987 8688 5850 6424 61 13133 91.2 S47.7W 8985 8786 5916 6496 62 13223 91.3 S47W 8982 8876 5977 6566 63 13318 90.4 S47W 8981 8971 6042 6632 DLS 3.7 .6 .1 .8 .9 0576H- Sohio Daily Prilling Report -- PBU ~lay 22, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13,419' Day: 24 24-Hour Ftg: 25' Water Used: 500 Current Operation: Work stuck pipe. Drilled to 13419'. Trip for bit and BHA. Condition mud at casing shoe. Ream from 13299' to 13352'. Stuck pipe at 13352'. Working pipe. MUD TYPE-Drill faze WT:9.0 VIS:ll2 PV:31 YP:44 FL:4 SOLIDS:13 TEMP:86°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 64 13382 90.6 S47W 8987 9032 6083 6677 .3 0576H: Sokio Daily Drilling Report -- PBU May 23, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13497' Day: 25 24-Hour Ftg: 78' Water Used: 300 Current Operation: Drilling. Spot pipe lax pill. Work pipe free and POH to shoe. Condition mud. Ream and wash to 13419'. Drilling at 13497'. MUD TYPE-Drill faze TEMP:103°F WT:9.2 VIS:108 PV:22 YP:52 FL:3.4 SOLIDS :13.5 SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 65 13449 89.1 S46W 8987 9099 6129 6726 2.7 0576H: SoHio Daily Drilling Report -- PBU May 24, 1986 at 0600 hoLlrs Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13,623' Day: 26 24-Hour Ftg: 126' Water Used: 200 Current Operation: Drilling with bit #29. Drilled to 13497'. POH to shoe. Condition mud to 9.3 ppg. Trip for bit and BHA. Ream 13320' to 13497'. Drillin9 at 13623'. MUD TYPE-Drill faze WT:7.5 VIS:141 PV:28 YP:54 FL:5.2 SOLIDS:14 TEMP:79°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 66 13481 88.1 S45W 8988 9131 6151 6748 4 67 13551 87.8 S45.6W 8991 9201 6201 6798 .9 0576H: So~io Daily Drilling Report -- PBU t-lay 25, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13,866' Day: 27 24-Hour Ftg: 243' Water Used: 400 Current Operation: RIH C.O. run. Drill to 13866'. Back ream tight hole from 13487 to 12646. Trip for bit and BHA. MUD TYPE-Drill faze WT'9.7 VIS'l'21 PV:30 YP-54 FL'3.2 SOLIDS'14 TEMP-98°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 68 13647 87.9 S44.2W 8994 9297 6269 6866 1.4 69 13740 88.2 S43.5W 8997 9389 6336 6930 .8 70 13829 88.3 S43.5W 9000 9478 6401 6991 0 0576H: Rig: AUDI #2 Well: Y-20 /33-05-10-13) Sohio Daily Drilling Report -- PBIJ May 26, 1986 at 0600 hours AFE # 120472 0600 Depth: 13,866' Day: 28 24-Hour Ftg: O' Water Used: 300 Current Operation: POH f/liner. Circulate and condition mud to 9.8 ppg. RIH and ream 12916 to 13702' CBU. Spot Lo-vis pill. POH to shoe. CBU. RIH and ream 1~172to 13456'. CBU. Spot Lo-vis pill. POH for liner. MUD TYPE-Drill faze WT:9.8 VIS:124 PV:25 YP:56 FL:3.4 SOLIDS:14 TEMP:84°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily Drilling Report -- PBU May 27, 1986 at 0600 hours Rig: AUDI #2 Well' Y-20 (33-05-10-13) AF£ # 120472 0600 Depth: 13,866' Day: 29 24-Hour Ftg: ' Water Used: 100 Current Operation: Lay down HWDP. POH. Ran 4-1/2" slotted liner from 13822' to 12659' and hung from packer at 12430'. Tested packer to 3000 psi. Displaced slotted liner to diesel. POH. MUD TYPE-Drill faze WT:9.8 VIS:134 PV:28 YP:56 FL:3.4 SOLIDS:14 TEMP:80°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDI NATES DLS 0576H: Sohio Daily Prilling Peport -- PBU Hay 28, 1986 at 0600 ~ours Rig: AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13,866' Day: 30 24-Hour Ftg: ' Water Used: 400 Current Operation: Circ. salt water. RIH with dummy seal assembly and wash over SBR seal nipple. Displace hole with 9.1 ppg Na Cl. Inject oil base mud. MUD TYPE-9.1 WT:9.1 VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily Drillin.q Report -- PBU May 29, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 C33-05-10-13) AFE # 120472 0600 Depth: 13,866' Day: 31 24-Hour Ftg: ' Water Used: 300 Current Operation: Install adapter flange. Circulate Na Cl. POH. Ran 4-1/2" tubing. NU tree and adapter flange. MUD TYPE-Na C1 WT:9.1 VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily F)rillin.q Report -- PBU May 30, 1986 at 0600 hours Rig' AUDI #2 Well' Y-20 (33-05-10-13) AFE # 120472 0600 Depth' 13,866' Day: 32 24-Hour Ftg' ' Water Used' 100 Current Operation- Wire lining. NU tree and test to 5000 psi. RU wi reline and attempt to set plug in X nipple. Lost prong. Running XX plug to set in X nipple. MUD TYPE-None WT' VIS' PV- YP' FL' SOLIDS: TEMP'°F SURVEY MD ANGLE DIRECTION TVD SECTION COORDINATES DLS 0576H: Sohio Daily Drilling Report -- PBU May 31, 1986 at 0600 hours Rig: AUDI #2 Well: Y-20 (33-05-10-13) AFE # 120472 0600 Depth: 13,866' Day: 33 24-Hour Ftg: O' Water Used: 200 Current Operation- Pump A/P - Rig released 0600. Set XX plug. Opened sliding sleeve. Displaced tubing to diesel. Closed sleeve. Pulled plug. Installed SSSV. Downsqueezed annulus with 300 sks Permafrost C followed by 125 bbls Arctic pack. Released rig at 0600 hrs. 5/31/86. MUD TYPE- WT: VIS: PV: YP: FL: SOLIDS: TEMP:°F SURVEY MD ANGLE DIRECTION TVD- SECTION COORDINATES DLS 0576H: SUB-SURFACE DIRECTIONAL SURVEY ~'~ UIDANCE ~'~ONTINUOUS ~-~'] OOL Company Well Name Field/Location STANDARD ALASKA PRODUCTION COMPANY Y-20(1440'SNL.347'WEL.SEC.33,TllN,R13E) pR[]DROR RAY. NQRTR RT,gDR. ALASKA Job Reference No. 71557 Lo~3ed By: HAUGAARD Date , 6/8/86 Computed By; KRUWELL GOT DIRECTIONAL SURVEY CUSTOMER LISTING STANDARD ALASKA PRODUCTION CO. Y-Z0 (33-5-10-13) PRUDm~E BAY NORTH SLOPE,ALASKA SURVEY DATE: 08-JUN-B6 ENGINEER: L. HAUGAARO METHODS OF CSMPUTATISN TOOL LOCATION: TANGENTIAL- &VERAGED DEVIATION AND AZIMUTH INTERPOL&TI~N: LINEA~ VERTICAL SECTION: HORIZ. DIST. PROJECTED ONTO A TARGET AZIMUTH OF SOUTH 48 DEG 0 MIN WEST DATA FROM SURF.6CE TC 1ILO7' 4C~UIRED WiTH TANGENTIAL METHOD FROM SCHLUMBERGER GCT TOOL. DATA FROM 12107' TS gRILLERS TO 13366' &C~UIREO WITH RADIUS OF CURVATURE METHOD FROM TELECO MEASURED WHIL~ ORILLING SURVEY. MWD DATA TIED TO GCT DATA AT DEPTH 12066'. COMPUTATION DATE: 30-JUN-86 PAGE STANDARD ALASKA PRODUCTION CO.. Y-20 (33-5-10-13) PRUDHOE BAY NORTH SLOPE,ALASKA INTERPOLATED VALUES FOR EVEN 100 FEET OF TRUE MEASURED VERTICAL DEPTH DEPTH SUB-SEA VERTICAL DEPTH COURSE VERTICAL DOGLEG DEVIATION AZIMUTH SECTION SEVERITY DEG MIN DEG MIN FEET OEO/lO0, 0.00 0.00 -89.03 100.00 100.00 10.97 200.00 200.00 110.97 300.00 300.00 210.97 400.00 400.00 310.97 500.00 499.99 410.96 600.00 599.89 510.86 700.00 699.57 610.54 800.00 798.67 709.64 900.00 896.95 807.92 0 1 3 5 9 12 0 0 N 0 0 E 0.00 0.00 0 18 S 29 54 E 0.10 0.23 0 4 S 80 28 E 0.02 0.38 0 19 S 19 29 W 0.26 0.82 15 S 27 58 W 0.50 1.04 20 S 13 29 W 1.49 0.93 31 S 22 47 W 5.09 2.12 56 S 29 38 W 12.53 2.29 7 S 37 3 W 25.39 3.97 7 S 38 40 W 43.58 2.61 1000.00 994.15 1100.00 1090.24 1200.00 1185.39 1300.00 1279.35 1400.00 1371.95 1500.00 1463.19 1600.00 1553.10 1700.00 1641.67 1800.00 1728.48 1900.00 1813,20 905.13 1001.21 1096.36 1190.32 1282.92 1374.16 1464.07 1552.64 1639.45 1724.17 14 54 S 39 16 N 66,69 2.68 17 2 S 40 42 W 94.08 2.26 18 53 S 41 26 W 124.66 1.89 21 2 S 40 39 W 158,61 2.2'9 23 14 S 40 4 W 196.01 2,08 24 57 S 42 11 W 236.60 2.13 26 52 S 43 34 W 280,20 1.77 28 31 S 43 43 W 326.50 2.07 30 53 S 43 5 ~ 375,97 2.43 33 14 S 41 47 W 428.82 2.49 2000.00 1895.67 2100.00 1975.67 2200.00 2053.72 2300.00 2130.06 2400.00 2205.43 2500.00 2279.45 2600.00 2351.54 2700.00 2421.93 2800.00 2491.50 2900.00 2561.23 1806.54 1886.64 1964.69 2041.05 2116.40 2190.42 2262.51 2332.90 2402.77 2472.20 35 3'9 S 40 30 W 484.94 2.97 37 42 S 40 20 W 544.41 1.40 39 36 S ~1 5 W 606.39 1.75 40 41 S 40 33 W 670.50 1.54 41 29 S 39 51 N 735.59 1.06 43 9 S 41 23 W 802.26 2.01 44 34 S 41 33 W 871.13 1.73 45 3~ S 42 9 W 941.72 1.85 45 4.2 S 43 25 W 1012.99 0.46 46 10 S 43 36 W 1094.75 0.53 3000.00 2630.63 3100.00 2700.49 3200.00 2770.39 3300.00 2838.99 3400.00 2'306.75 3500,00 2974.42 3600.00 3042.34 3700.00 3110.09 3800.00 3177.79 3900.00 3246.14 2541.60 2611.46 2681.36 2749.96 2817.72 2885.39 2953.31 3021.06 3088.76 3157.11 45 50 S 43 50 W 1156.53 0.33 45 22 S 43 17 W 1227.89 0,65 46 4 S 42 39 ~ 12'39.11 1,26 47 12 S 42 14 W 1371,52 0.85 47 22 S 42 9 W 1444.69 0.27 47 18 S 42 24 W 1517.94 0.81 47 18 S 42 35 ~ 1591.01 0,40 47 21 S 42 24 W 1664.22 0.50 47 ,PO S 42 33 W 1737,47 0.76 46 33 S 43 lei W 1810.18 0,77 DATE OF SURVEY: 08-JUN-86 KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARD MEASURED DEPTH RECTANGULAR NORTH/SOUTH FEET COORDINATES HORIZ. EAST/WEST DIST. FEET FEET 0.00 N 0.00 E O. 0.40 S 0.23 E O. 0.56 S 0.48 E O. 0.74 S 0.31 E O. 1.20 S 0.41 E 1. 2.30 S 0.06 E 2. 6.07 S 1.38 W 6. 13.24 S 4.94 W 14. 24.12 S 12.45 W 27. 38.60 S 23.89 W 45. 56.83 S 77.99 S 101.13 S 126.89 S 155.71 S 186.62 S 218.57 S 252.12 S 283.12 S 327.29 S 38.57 W 68. 56.38 W 96. 76.69 W 126. 99.18 W 161. 123.55 W 198. 150.34 W 239. 180.25 W 283. 212.33 W 329'. 246.49 W 379. 282.34 W 432. 369.93 415.67 463.05 511.69 562.06 613.14 664.96 718.03 770.32 822.53 89.03 FT DEPARTURE AZIMUTH OEG MIN O0 N 0 0 E 46 S 29 48 E 74 S 40 30 E 80 S 22 48 E 26 $ 18 49~ 30 S 1 36 '~ 23 S 12 47 .w 13 S 20 28 W 14 S 27 18 W' 39 S 31 45 W 68 S 34 10 W 24 S 35 51 W 92 S 37 10 W 05 S 38 0 W 77 S 38 25 W 65 S 38 51 W 31 S 39 30 W 62 S 40 6 W 17 S 40 32 W 24 S 40 46 W 874.53 S 768.83 W 1164.44 S 41 19 W 926.25 S 818.29 W 1235.93 S 41 27 W 978.65 S 866,95 W 1307.42 S 41 32 W 1032.38 S 916.01 W 1380.17 S 41 34 W 1086.87 S 965.41 W 1453.72 S 41 36 W 1141.40 S 1014.88 W 1527.34 S 41 38 W 1195.42 S 1064,56 W 1600.72 S 41 41 W 1249.67 S 1114.23 W 1674.27 S 41 43 W 1304.01 S 1163.86 W 1747.85 S 41 44 W 1357.41 S 1213,62 W 1820.83 S 41 47 W S 319.47 W 488.78 S 40 48 W S 358.30 W 548.78 S 40 45 W S 399.04 W 611.27 S 40 45 W S 441.52 W 675.85 S 40 47 W S 483.76 W 741.57 S 40 43 ~ S 527.48 W 808.81 S 40 42 S 573.49 W 878.10 S 40 46 ~. S 620.69 W 949.12 S 40 50 W S 669.52 W 1020.61 S 40 59 W S 719.06 W 1092.52 S 41 9 W COMPUTATION DATE: 30-JUN-86 PAGE 2 STANDARD ALASKA PRODUCTION CO. DATE OF SURVEY: 08-JUN-86 Y-Z0 (33-5-10-13) PRUDMOE SAY NORTH SLOPE,ALASKA KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARO INTERPCLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH 89.03 FT DEPTH DEPTH DEPTH DEG MIN 4000.00 3314.98 3225.95 46 27 4100.00 3383.98 3294.95 46 10 4200.00 3453.03 3364.00 46 21 4300.00 3522.22 3433.19 45 49 4400.00 3592.72 3503.69 44 59 4500.00 3663.50 3574.47 44 52 4600.00 3734.68 3645.65 44 18 4700.00 3806.50 3717.47 43 57 4800.00 3878.63 3789.60 43 40 4900,00 3951.05 3862.02 43 36 5000.00 4023.35 3934.32 43 32 5100.00 4095.96 4006.93 43 14 5200.00 4168.86 4079.83 43 14 5300.00 4241.69 4152.66 43 19 5400.00 4314.02 4224.99 44 1 5500.00 4385.55 4296.52 44 41 5600.00 4455.75 4366.72 46 27 5700.00 4523.43 4434.40 4~ 0 5800.00 4590.53 4501.50 47 19 5900.00 4658.52 4569.49 47 25 6000.00 4725.73 4636.70 48 12 6100.00 4791.98 4702.95 48 45 6200.00 4857.46 4768.43 49 26 6300.00 4922.18 4833.15 4~ 25 6400.00 4987.31 4898.28 49 15 6500.00 5053.14 4964.11 48 20 6600.00 5120.10 5031.08 47 42 6700.00 5187.73 5098.70 47 2 6800.00 5256.15 5167.12 46 39 6900.00 5324.96 5235.93 46 24 7000.00 5394.17 5305.14 45 59 7100.00 5464.07 5375.04 45 6 7200.00 5534.82 5445.79 45 2 7300.00 5605.55 5516.52 44 49 7400.00 5676.63 5587.60 44 40 7500.00 5747.82 565~.79 44 35 7600.00 5819.20 5730.17 44 23 7700.00 5890.78 5851.75 44 4 7800.00 5962.84 5573.81 43 45 7900.00 6035.30 5946.27 43 22 DEG MIN FEET DEG/iO0 FEET FEET S 43 22 W 1882.48 S 43 15 W 1954.62 S 43 13 W 2026.70 S 43 26 W 2098.65 S 44 3 ~ 2169.38 S 43 48 W 2239.84 5 ,44 12 W 2309.90 S 44 36 W 2379.35 S 44 30 W 2448.50 S 44 24 W 2517.32 S 44 41 W 2585.28 S 45 10 ,W 2654.93 S 45 58 W ,2723.32 S 46 36 W 2791.82 S 47 6 N 2860.86 S 47 36 W 2930.74 S 48 56 W 3001.95 S 49 58 W 3075.52 S 46 51 W 3149.64 S 41 39 W 3222.73 S 41 8 W 3296.27 S 41 8 W 3370.63 S 41 15 W 3445.68 S 42 0 W 3521.40 S 43 40 W 3596.98 S 44 31 N 3672.09 S 45 21 W 3746.25 S 45 ~3 W 3819.84 S 45 35 W 3892.71 S 45 23 W 3965.21 S 45 30 W 4037.32 S 45 32 W 4108.75 S 45 26 W 4179.35 S 45 20 W 4249.97 S 45 17 W 4320.24 S 45 17 W 4390.39 S 45 19 W 4460.3~ S 45 20 W 4530.09 S 45 20 W 4599.36 S 45 23 ~ 4668.21 0.43 0.40 0.50 2.05 0.52 0.50 0.77 0.25 0.51 0.55 0.95 0.88 0.71 0.71 0.88 0.96 2,89 0,27 5,52 1.83 1.24 0.85 0.77 1.30 0.83 1.17 0.27 0.49 0.34 0.62 0.38 0.71 0.76 0.76 0.65 0.50 0.29 0.33 0.33 0.51 FEET OEG MIN 1410.13 S 1263.44 W 1893.34 S 41 51 W 1462.78 S 1313.10 W 1965.70 S 41 54 W 1515.49 S 1362.65 W 2038.02 S 4t 57 W 1568.11 S 1412,08 W 2110,20 $ 42 0 W 1619.20 S 1461.26 W 2181.07 S 42 3 " 1670,12 S 1510,23 W 2251,68 S 42 7 ,.. 1720.71 S 1558.95 W 2321.88 S 42 10 1'770.32 S 1607.73 W 2391.41 S 42 14 ~ 1819,63 S 1656,38 W 2460,62 S 42' 18 W 1868.83 S 1704.69 W 2529.52 S 42 22 W 1'918,07 S 1753,15 W 2598,56 S 42 25 W 1966.85 S 1801.61 W 266T,26 S 42 29 W 2014.70 S 1850,55 W 2735.60 S 42 34 W 2062.04 S 1900.09 W 2803.99 S 42 39 W 2109.24 S 1950,50 W 2872,86 S 42 45 W 2156.54 S 2001.94 W 2942.52 S 42 52 W' 2204.14 S 2054.90 W 3013.44 S 42 59 W 2251.75 S 2111.04 W 3086.56 S 43 9 W 2300.16 S 2167.18 W 3160.28 S 43 17 W 2353.05 S 2217.92 W 3233,58 S 43 18 W 2408.76 S 2266.72 W 3307.59 S 43 15 W 2465.20 S 2315.95 W 3382.43 S 43 12 W 2522.08 S 2365.73 W 3457.97 S 43 10 W 2579.25 S 2416.14 W 3534.16 S 43 T W 2634.81 S 2467.82 W 3610.04 S 43 7 W 2688.86 S 2520.22 W 3685.31 S 43 8 ~ 2741.40 S 2572.71 W 3759.53 S 43 10 ~ 2792.97 S 2625.31 W 3833.13 S 43 13 W 2843.93 S 2677.47 W 3906.00 S 43 16 W 2894.81 S 2729.22 W 3978.51 S 43 18 W 2945.44 S 2780.66 W 4050.64 S 43 21 W 2995.53 S 2831.69 W 4122.09 S 43 23 W 3045.05 S 2882.09 W 4192.71 S 43 25 W 3094.68 S 2932.44 W 4263.36 S 43 27 W 3144,15 S 2982.45 W 4333.67 S 43 29 W 3193.56 S 3032.36 W 4403.87 S 43 31 W 3242.80 S 3082.15 W 4473.86 S 43 32 W 3291.88 S 3131.82 W 4543.65 S 43 34 W 3340.62 S 3181.14 W 4612.96 S 43 35 W 3389.04 S 3230.18 W 4681.85 S 43 37 W TRUE SUB-SEA COURSE VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ, DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST, AZIMUTH STANDARD ALASKA PRODUCTION CO. Y-20 (33-5-10-13) PRUDHOE BAY NORTH SLOPE,ALASKA COMPUTATION DATE: 30-JUN-86 PAGE DATE DF SURVEY: 08-JUN-86 KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARD TRUE MEASUREO VERTICAL VERTICAL DEVIATION AZIMUTH D;PTH OEPTH DEPTH DEG MIN DEG MZN 89.03 FT 9000.00 6825.36 6736.33 44 23 9100.00 6897.04 6808.02 44 3 9200.00 6968.79 6879.76 44 14 9300.00 7040.37 6951.34 44 25 9400.00 7111.95 7022.92 44' 6 9500.00 7183.99 7094.96 43 35 9600.00 7257.03 7168.00 43 1 9700.00 7330.45 7241.42 42 18 9800.00 7404.93 7315.90 41 32 9900.00 7480.44 7391.41 40 29 10000.00 7556.17 7467.14 41 2 10100.00 7631.4'9 7542.45 41 29 10200.00 7705.42 7616.39 43 19 10300.00 7776.70 7687.67 45 ~8 10400.00 7844.20 7755.17 q9 2,5 10500.00 7906.79 7817.76 52 38 10600.00 7966.88 7877.35 53 20 10700.00 8026.14 7937.11 55 55 10800.00 8084.91 7995.83 54 6 10900.00 8143.52 8054.49 53 59 11000.00 8201.99 8112.95 54 34 11100.00 8260.03 8171.00 54 28 11200.00 8318.40 8229.37 54 9 11300.00 8377.05 8288.02 53 52 11400.00 8436.54 8347.51 53 23 11500.00 8495.92 8406.89 53 39 11600.00 8555.57 8466.54 51 50 11700.00 8620.10 8531.07 48 53 11800.00 8686.34 8597.31 49 19 11900.00 8748.17 3559.14 54 21 SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. FEET DEG/IO0 S 45 16 W 4736.66 S 45 21 W 4805.53 S 45 35 W 4874.70 S 45 53 W 4'944.10 S 46 16 W 5014,04 S 46 45 W 5084.44 S 47 16 W 515~.50 S 47 56 W 5224.19 S 48 42 W 5293.74 S 48 47 W 5363.24 S ~8 45 W 5433.17 S 48 43 W 5502.89 S 48 41 W 5572.54 S 49 0 W 5542.38 S 49 29 W 5712.19 S 49 58 W 5781.51 S 50 39 W 5849.76 S 51 13 W 5917.56 S 51 26 W 5984.17 S 51 24 W 6049.60 S 50 54 W 6114.80 S 48 30 W 6180.55 S 49 2 N 6247.87 S 49 25 W 6317.98 S 5C, 5 W 6391.71 S 50 48 W 6469.59 $ 51 9 W 6549.43 $ 51 32 W 6629.33 S 51 51 W 6710.56 S 51 55 W 6791.42 S 52 9 W 6872.33 S 52 49 W 6953.51 S 53 42 w 7034.37 S 5~ 16 W 7114.91 S 54 49 W 7194.77 S 55 16 W 7274.61 S c5 40 W 7354.20 S 51 45 W 7430.07 S 46 44 W 7504.95 S 46 ~1W 7583.47 MOT H 0.66 0.52 0.30 1.09 1.02 0.73 0.89 0.58 0.72 0.38 0.20 0.5! 0.29 0.50 0.72 2.73 0.35 1.24 0.95 0.73 1.34 1.63 2.63 2.96 3.99 1.64 0.67 0.42 0.17 1.I1 0.36 0.86 0.98 0.62 0.9~ 0.25 6.50 5.26 3.97 4.79 FEET FEET FEET DEG MIN 3437.21 S 3278.93 W ~+750.34 S 43 38 W 3485.70 S 3327.94 W 4819.26 S 43 40 W 3534.28 S 3377.28 W 4888,47 S 43 41 W 3582.73 S 342'7.04 W 4957.88 S 43 43 W 3631.27 S 3477.45 W 5027.80 S 43 45 " 3679.74 $ 3528.54 W 5098.15 $ 43 47 3727.51 S 3579.79 W 5168.10 S' 43 50 3774.54 S 3631.22 W 5237.65 S 43 53 3820.79 S 3683.17 W 5306,99 S 43 56 W 3866.59 $ 3735.46 W 5376.26 S 44 0 W 3912.67 S 3788.07 W 5445.96 S 44 4 W 3958.64 S 3840.49 W 5515.45 S 44 7 W 4004.61 S 3892.84 W 5584.89 S 44 11 4050.58 S 3945.41 W 5654.51 S 44 14 W 4096.17 S 3998.30 W 5724.07 S 44 18 W 4141.06 S 4051.17 W 5793,13 S 44 22 W 4184.63 S 4103.77 W 5861.07 S 44 26 W 4227,40 S 4156.50 W 5928.52 S 44 30 W 4269.09 S 4208.59 W 5994.78 S 44 35 W 4309,88 S 4259.91 W 6059,86 S 44 39 W 4350.73 S 4310.86 W 6124.74 S 44 44 W 4393.39 S 4360.92 W 6190.28 S 44 47 W 4437.85 S 4411.49 W 6257.45 $ 44 49 4483.63 S 4464.61 W 6327.37 $ 44 52 W 4531.30 S 4520.89 W 6400.87 S 44 56 4580.85 S 4581.08 W 6478.46 S 45 0 " 4631.16 S 4643.20 W 6557,97 S 45 4 4681.45 S 4706.12 W 6638.04 S 45 9 4731.55 S 4769.64 W 6718.41 S 45 13 W 4781.57 S 4833.41 W 6798.92 S 45 18 W 4831.47 S 4897.35 W 6879.47 S 45 23 W 4881.08 S 4961.93 W 6960.29 S 45 28 W 4929.68 S 5026.98 W 7040.76 S 45 33 W 4977.21 S 5092.56 W 7120.87 S 45 39 W 5023.83 S 5158.04 W 7200.29 S 45 45 5069.90 S 5224.00 W 7279.70 S 45 51 W 5115.47 S 5290.06 W 7358.86 S 45 57 W 5159.81 S 5352.23 W 7434.38 S 46 2 W 5209.32 S 5408.42 W 7509.19 S 46 4 5263.29 S 5465.48 W 7587.73 S 46 4 W 8000.00 6108.12 6019.09 43 25 8100.00 6180.55 6091.32 43 44 8200.00 6252.70 6163.67 43 58 8300.00 6324.65 6233.62 44 7 8400.00 6396.08 6307.05 44 39 8500.00 6467.08 6378.05 44 37 8600.00 6538.44 6449.41 44 18 8700.00 6610.15 6521.12 4~ 9 8800.00 6682.00 6592.97 43 50 8900.00 6753.89 6664.~6 44 18 INTERPOLAT'=D VALUES F3R EVEN 100 FEET OF MEASURED DEPTH SUB-SEA COURSE VERTIC~.L DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE COMPUTATZON DATE: 30-JUN-86 PAGE 4 STANDARD ALASKA PRODUCTION CO. DATE OF SURVEY: 08-JUN-86 Y-20 (33-5-10-13) PRUDHOE BAY NORTH SLOPE~ALASKA KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARD 89.03 FT INTERPOLATED VALUES FSR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZZMUTH 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 12000.00 8802.96 8713.93 59 20 12100.00 8850.03 6761.00 64 53 12107.00 8853.01 8763.98 65 25 S 47 4 W '7667.05 S 47 35 W 7755.24 S 47 34 W 7761.58 5.~5 6.01 0.00 5320.43 S 5526.50 W 7671.32 S 46 5 W 5380.15 S 5591.40 W 7759.49 S 46 6 W 5384.42 S 5596.08 W 7765.83 S 46 6 W 12200.00 8886.70 8797.67 TO 30 12300.00 8916.20 8827.17 75 12 12400.00 8939.20 8850.17 78 24 12500.00 8957.40 8868.37 80 42 12600.00 8973.50 8884.47 80 48 12700.00 8988.30 8899.27 82 t4 12800.00 8998.80 8909.77 85 30 12900.00 9004.10 ~915.07 88 48 13000.00 9003.90 8914.87 91 O0 13100.00 9002.00 8912.97 91 12 13200.00 8999.90 8910.87 91 1,2 13300.00 8998.20 8909.17 90 36 13400.00 8997.50 8908.47 90 12 13500.00 8999.00 8909.97 58 O0 13600.00 9002.70 8913.67 87 54 13700.00 9006.30 8917.27 85 06 13800.00 9009.50 8920.47 88 12 13866.00 9011.50 8922.47 88 1Z S 49 30 W S 49 30 W S 49 24 W S 49 06 W S 48 24 W S 47 36 w S 47 24 W S 47 30 W S 47 06 W S 46 48 w S 47 O0 W S 47' O0 W S 46 42 W S 45 12 W S 44 54 W S 43 48 W S 43 30 W S 43 30 ~ 5440.20 S 5661.00 W 7851.20 5502.10 S 5733.60 W 7946.50 5565.40 S 5807.50 W 8043.70 5629.30 S 5882.20 W 8141.80 5694.40 S 5956.40 W 8240.40 5760.40 S 6030.10 W 8339.30 6301.30 S 6610.40 W 9132.50 6402.40 S 6711.70 W 9275.70 6398.10 S 6707.40 W 9269.50 6362.50 S 6671.90 W 9219.30 6321.70 S 6631.00 W 9161.50 6288.20 S 6597.10 W 9113.80 6235.80 S 6542.50 W 9038.20 6305.40 S 6614.50 W 9138.30 6375.90 S 6685.20 W 9238.20 6447.40 S 6755.10 W 9338.10 6519.70 S 6824.10 W 9437.90 6567.50 S 6869.40 W 9503.90 COMPUTATION OATE: 30-JUN-86 PAGE 5 STANDARD ALASKA PRODUCTION CO. DATE OF SURVEY: 08-JUN-86 Y-Z0 (33-5-10-13) PRUDHOE 8AY NORTH SLOPE,ALASKA KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARD INTERPOLATED VALUES FOR EVeN 1000 FEET OF MEASURED DEPT TRUE ,SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION 4ZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG MIN 0.00 0.00 -89.03 0 0 1000.00 994.16 905.13 14 54 2000.00 1895.67 1806.64 35 39 3000.00 2630.6,3 2541.60 45 50 4000.00 3314.98 3225.95 46 27 5000.00 4023.35 3934.32 43 32 6000.00 4725.73 4635.70 48 12 7000.00 5394.17 5305.14 45 59 8000.00 6108.12 6019.09 43 25 9000.00 6825.36 6736.33 44 23 89.03 FT 10000.00 7556.17 7467.14 41 2 11000.00 8201.99 8112.96 54 34 12000.00 8802.96 8713.93 59 20 12107,00 8853.01 8763.98' 65 25 VERTICAL DOGLEG RECTANGULAR COOROINATES HORIZ. DEPARTURE SECTZDN SEVERITY NORTH/SDUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET OEG MIN N 0 O E 0.00 S 39 16 W 66.69 S 40 30 W 484.94 S ~3 50 N 1156.53 S 43 22 ~ 1882.48 S 44 41 W 2586.28 S 41 8 W 3296.27 S 45 30 W 4037.32 S 45 16 W 4736.66 S 48 45 W 5433.17 S 50 54 W 6114.80 S 52 9 W 5872.33 S 47 4 W 7667.05 S 47 34 W 7761.58 0.00 2.68 2.97 0.33 0.43 0.95 1.24 0.38 0.66 0.20 0.00 N 0.00 E 0.00 N 0 0 E 56.83 S 38.57 W 68.68 S 34 10 W 369.93 S 319.47 W 488.78 S 40 48 W 874.53 S 768.83 W 1164.44 S 41 19 W 1410.13 S 1263.44 W 1893.34 $ 41 51 " 1918.07 S 1753.15 W 2598.56 $ 42 25 2408.76 S 2266.72 W 3307.59 S 43 15 . 2945.44 S 2780.66 W 4050.64 S 43 Zl W 3437.21 S 3278.93 W 4750.34 S 43 38 ~ 3912.67 S 3788.07 W 5445.96 S 44 4 W 1.34 0.36 5.45 0.00 4350.73 S 4310.86 W 6124.74 S 44 44 W 4831.47 S 4897.35 W 6879.47 S 45 23 W 5320.43 S 5526.50 W 7671.32 S 46 5 W 5384.42 S 5596.08 W 7765.83 S 46 6 W 13000.00 9003.90 8914.87 91 O0 13866.00 9011.50 8922.47 88 12 S 47 06 W S 43 3O W 6398.10 S 6707.40 W 9269.50 6567.50 S 6869.40 W 9503.90 COMPUTATION D&TE: 30-JUN-86 STANDARD ALASKA PRODUCTION CO. Y-Z0 (33-5-10-13) PRUDMOE 5A.Y NORTH SLOPE,ALASKA INTORPOLATED VALUES FOR EVEN 100 FEE TRUE SUB-SEA MEASURED VERTICAL VERTICAL DEPTH DEPTH DEPTH 0.00 0.00 -89.03 89.03 89.03 0.00 189.03 189.03 100.00 289.03 289.03 200.00 389.03 389.03 300.00 489.04 489.03 400.00 589.11 589.03 500.00 689.41 689.03 600.00 790.24 789.03 700.00 891.91 889.03 800.00 994.70 989.03 900.00 1098.73 1089.03 1000.00 1203.85 1189.03 1100.00 1310.37 1289.03 1200.00 1418.62 1389.03 1300.00 1528.56 1489.03 1400.00 1640.39 1589.03 1500.00 1754.27 1689.03 1600.00 1871.21 1789.03 1700.00 1991.84 1889.03 1800.00 2116.91 1989.03 2246.07 2089.03 2378.14 2189.03 2513.14 2289.03 2653.01 23~9.03 2796.02 2489.03 2940.13 2589.03 3083.69 2689.03 3226.95 2789.03 3373.84 2889.03 3521.54 2989.03 3668.91 3089.03 3816.61 3189.03 3962.35 3289.03 4107.29 3389.03 4252.10 3489.03 4394.78 3589.03 4535.99 3689.03 4675.73 3789.03 4814.37 3889.03 COURSE VEOTICAL DOG DEVIATION AZIMUTH SECTION SEV DEG MIN DEG MIN FEET DEG 0 0 N 0 0 E O.O0 0 17 S 23 54 E 0.08 0 5 S 87 0 E 0.03 0 14 S 33 49 W 0.21 0 9 S 4 36 W 0.46 1 13 S 12 57 W 1.29 3 19 S 22 8 W 4.50 5 42 S 29 14 W 11.51 8 45 S 36 32 ~ 23.90 11 54 S 38 41 W 41.91 14 46 S 39 11 W 55.35 17 1 S 40 41 W 93.72 18 58 S 41 24 W 125.90 21 15 $ 40 32 W 162.31 23 37 S 40 13 W 203.32 25 32 S 42 51 W 248.71 27 31 S 43 43 W 298.61 29 53 S 43 29 W 352.90 32 35 S 42 12 W 413.26 35 26 S 40 34 W 4B0.24 1900.00 2000.00 2100.00 2200.00 2300.00 2400.00 2500.00 2700.00 2800.00 38 0 S 40 25 W 554.67 40 12 S 41 16 W 635.78 41 18 S 39 48 N 721.30 43 23 S 41 33 W 511.20 45 18 S ~1 36 W 908.37 45 47 S 43 25 W 1010.15 46 6 S 43 42 W 1113.60 45 30 S 43 229 W 1216.32 46 25 S 42 29 W 1318.49 47 21 $ 42 I1 W 1425.54 2900.00 3000.00 3100.00 3200.00 3300.00 3400.00 3500.00 3600.00 3700.00 3800.00 47 13 S 42 34 W 1533.69 47 22 S 42 26 W 1641.45 47 12 S 42 40 W 1749.64 46 26 S 43 21 W 1855.29 46 11 S 43 15 W 1959.86 46 15 S 43 9 N 2964.23 44 59 S 44 3 W 2165.70 ~ 42 S 43 49 W 2265.13 44 1 S 44 35 W 2362.53 43 38 S 44 30 W 2438.39 PAGE 6 DATE OF SURVEY: 08-JUN-86 KELLY BUSHING ELEVATION: ENGINEER: L. HAUGAARD T 'DF SUB-SEA DEPTH LEG RECTANGULAR ERITY NORTH/SOUTH /IOQ FEET 0.00 0.00 N 0.42 0.34 S 0.07 0.55 S 1.01 0.69 S 1.39 1.16 S 1.18 2.05 S 1.69 5.47 S 2.36 12.30 S 3 · 88 22.90 S 1.90 37.28 S 2.74 55.78 S 2.15 77.71 S 1.83 102.06 S 2.47 129.72 S 22.08 161.37 S 2.42 195.58 S 1.53 231.92 S 2.24 271.29 S 2.17 315.67 S 2..71 366.33 S 2.21 423.57 S 1.09 485.30 S 0.70 550.95 S 1.51 619.87 S 1.03 693.01 S 0.42 768.24 S 0.27 843.45 S 1.55 917.82 S 1.49 992.97 S 0.16 1072.61 S 0.99 1153.07 0.71 1232.77 1.50 1313.00 0.~7 1390.31 0.54 1466.61 0.58 1542.93 0.46 1616.55 0.66 1688.43 0.46 1758.32 0.31 1826.69 COORDINATES HO EAST/WEST DIS FEET FEE 0.00 E O. 0.20 E O. 0.46 E O. 0.33 E O. 0.43 E 1. 0.12 E 2. 1.13 W 5. 4.42 W 13. 11.54 W 25. 22.83 W 43. 37.72 W 67. 56.14 W 95. 77.52 W 128. 101.61 W 164. 128.30 W 206. 158.58 W 251. 193.00 W 301. 230.61 W 356. 271.87 W 416. 316.39 W 484. 365.00 W 559. 418.56 ~ 640. 474.52 W 727. 533.45 W 817. 598.34 W 915. 667.56 W 1017. 739.05 W 1121. 810.31 W 1224. 880.13 W 1326. 952.47 W 1434. 89.03 FT S 1025.56 W 1543. S 1098.80 W 1651. S 1172.13 W 1760. S 1244.69 W 1866. S 1316.70 W 1970. S 1388.43 W 2075. S 1458.69 W 2177. S 1527.77 W 2277. S 1595.90 W 2374. S 1663.33 W 2470. RIZ. DEPARTURE T. AZIMUTH T DEG MIN O0 N 0 0 E 40 S 30 14 E 73 S 39 39 E 76 S 25 55 E 24 S 20 5 ' 06 S 3 19 59 S 11 40 , 07 $ 19 45 W 65 S 26 44 W 71 S 31 29 W 33 S 34 3 W 87 S 35 50 W 16 S 37 13 W 77 S 38 4 W 16 S 38 29 W 79 S 39 2 W 72 S 39 45 W 06 S 40 21 W 61 S 40 44 W 04 S 40 48 W 14 S 40 45 W 86 S 40 46 W 13 S 40 44 W 81 S 40 42 W' 57 S 40 48 W 76 S 40 59 ' 43 S 41 13, 34 S 41 26 W 88 S 41 33 W 47 S 41 36 W 16 S 41 39 W 39 S 41 42 W 08 S 41 45 W 07 S 41 50 W 95 S 41 55 W 66 S 41 58 W 39 S 42 3 W 03 S 42 8 W 57 S 42 13 W 52 S 42 19 W C~PUTATiON ~TE: 30-JUN-S6 PAGE 7 STANOARD ALASKA PRODUCTION CO, DATE OF SURVEY: 08-JUN-86 Y-20 (33-5-10-13) KELLY BUSHING ELEVATION: PRUDHOE BAY NORTH SLOPE~ALASKA ENGINEER: L, HAUGAARD INTERPCL~TED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE VERTIC&L DOGLEG RECTANGULAR COORDINATES HORIZ, DEPARTURE ME~SUREO VERTICAL VERTICAL OEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH D.EPTH DEPTH DEPTH DEG MIN 4952.58 3989.03 3900.00 43 46 5090.48 4089.03 4000.00 43 17 5227.68 4189.03 4100.00 43 15 5365.32 4289.03 4200.00' 43 49 5504.89 4389.03 4300.00 44 44 5648.77 4489.03 4400.00 47 25 5797.78 4589.03 4500.00 47 21 5945.24 4689.03 4600.00 47 45 6095.53 4789.03 4700.00 48 44 6248.76 4889.03 4800.00 49 48 6402.63 4989.03 4900.00 49 14 6553.75 5089.03 5000.00 47 54 6701.91 5189.03 5100.00 47 1 6847.90 5289.03 5200.00 46 33 6992.60 5389.03 5300.00 46 0 7135.30 5489.03 5400.00 44 57 7276.74 5589.03 5500.00 44 47 7417.44 5689.03 5600.00 44 39 7557.81 5789.03 5700.00 44 23 7697.56 5889.03 5800.00 44 5 89.03 FT OEG MIN FEET DEG/IO0 FEET FEET FEET DEG MIN S 4~ 33 W 2553,62 S 45 4 W 2648,41 S 46 10 W 2742.27 S 46 56 W 2836,82 S 47 36 W 2934.18 S 49 47 W 3037.58 S 47 1 W 3148.01 S 41 10 W 3255.91 S 41 8 W 3367.29 S 41 17 W 3482.58 0.46 0.88 0.44 0.54 0.90 1.96 5.56 0.49 0.80 0.59 0.77 0.72 0.43 0.88 0.37 0.36 0.44 0.44 0.74 0.38 1894,76 S 1730,18 W 2565,86 S 42 24 W 1962,24 S 1796,98 W 2660,74 S 42 28 W 2027.84 S 1864.21 W 2754.53-S 42 35 W 2092.85 S 1932.91 W 2848.89 S 42 43 W 2158.86 S 2004.48 W 2945.95 S 42 52 2227.33 S 2081.97 W 3048.87 ,S 43 2299.05 S 2165.99 W 3158.66 $ 43 17 2378.16 S 2239.96 W 3266.97 S 43 17 W 2462.67 S 2313.74 W 3379.07 S 43 12 W 2550.02 S 2390.23 W 3495.11 S 43 8 W 2636.25 S 2469.20 W 3612.03 S 43 7 W 2717.25 S 2548.40 W 3725.29 S 43 9 W 2793.94 S 2626.31 W 3834.52 S 43 13 W 2368.34 S 2702.33 W 3940.81 S 43 17 W 2941.71 S 2776.86 W 4045.32 S 43 20 W 3013.01 S 2849.51 W 4147.04 S 43 24 W 3083.18 S 2920.78 W 4247.00 S 43 ~7 W 3152.78 S 2991,17 W 4345,93 5 43 29 W 3222.06 S 3061.19 W 4444.39 S 43 32 W 3290.68 S 3130.61 W 4541,95 S 43 34 W S 43 41 W 3598,97 S 45 0 .W 3712,03 S 45 44 W 3821.24 S 45 30 w 3927,52 S 45 30 W 4032,00 S 45 31 W 4133,69 S 45 23 W 4233.61 S 45 17 W 4332.49 S 45 20 W 4430.89 S 45 21 W 4528.40 7836.23 5989.03 5900.00 43 36 7973.74 6089.03 6000.00 43 15 8111.74 6189.03 6100.00 43 46 8250.52 6289.03 6200.00 43 59 8390.10 6389.03 6300.00 44 35 8530.81 6489.03 6400.00 44 30 8670.55 6589.03 6500.00 44 11 8809.73 6689.03 660C.00 43 51 8949.15 6789.03 6700.00 44 22 9088.86 6~89.03 0800.00 4~ 2 9228.26 6989.03 6900.00 44 15 9368.02 7089.03 7000.00 44 13 9506.99 7189.03 7100.00 43 28 9643.76 7289.03 7200.00 42 49 9778.73 73~9.03 7300.00 41 41 9911.28 7489.03 7400.00 40 29 10043.57 7589.03 7500.00 41 3 10177.5~ 7689.03 7600.00 42 4~ 10317.74 7789.03 7700.03 46 21 10470.88 7889.03 7800.00 51 58 S 45 21 W 4624.37 S 45 19 W 4718.65 S 45 22 ~ 4913.64 S 45 46 W 4909.79 S 46 13 W 5007.11 S 46 56 W 5106.06 S 47 40 W 5203.67 S 43 43 W 5300.47 S 48 48 W 5397.59 S 45 42 W' 5495.15 S 48 45 W 5592.26 S 49 20 W 5689.90 S 50 2 W 5786.35 S 50 54 W 5879.56 S 51 22 W 5970.07 S 51 19 W 6056.90 S 49 41 W 6143.39 $ 48 54 W 6232.58 S 4) g~ W 6330.74 S 50 ~2 W 6446.54 0.63 0.52 0.37 0.78 0.92 0.40 0.70 0.76 0.27 0.38 0,28 0,47 3,25 1,07 0,56 0.69 2.22 2,18 3,23 3,11 3358.21 S 3198.96 W 4637.98 S 43 36 W 3424.53 S 3266.11 W 4732.32 S 43 38 W 3491.41 S 3333.71 W 4827.38 S 43 40 W 3558.82 S 3402.39 W 4923.56 S 43 42 W 3626.48 S 3472.43 W 5020.87 S 43 45 W 3694.52 S 3544.32 W 5119.73 S 43 48 3760.77 S 3616.02 W 5217.18 S 43 52 3825.23 S 3688.23 W 5313.70 S 43 57 ~ 3889.21 S 3761.32 W 5410.50 S 44 2 W 3953.53 S 3834.68 W 5507.74 S 44 7 W 4017.62 S 3907.65 W 5604.55 S 44 12 W 4081.67 S 3981.36 W 5701.87 S 44 17 W 4144.17 S 4054.87 W 5797.94 S 44 22 W 4Z03.49 S 4126.88 W 5890.71 S 44 28 W 4260.27 S 4197.55 W 5980.75 S 44 34 W 4314.44 S 4265.62 W 6067.12 S 44 40 W 4368.96 S 4332.92 W 6153.21 S 44 45 W 4427.81 S 4399.95 W 6242.20 S 44 49 W 4491.92 S 4474.30 W 6340.09 S 44 53 W 4566.24 S 4563.22 W 6455.50 S 44 58 W STANOfiRD ALASKA PRODUCTION CO. Y-Z0 (33-5-10-13) PRUDHOE BAY NORTH SLOPE,ALASKA COMPUTATION DATE: 30-JUN-86 PAGE DATE OF SURVEY: 08-JUN-86 KELLY BUSHING ELEVATION: ENGINEER: L. HAU:GAARD INTERPOLATED V~LUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURS5 MEASURED VERTICAL VERTICAL DEVIATION AZimUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN 89.03 FT 10637.17 7989.03 7900.00 53 33 10807.03 8089.03 3000.00 54 7 10977.63 8189.03 4100.00 54 28 11149.80 8289.03 8200.00 54 16 11320.29 8389.03 8300.00 53 46 11488.36 8489.03 8400.00 53 38 11652.48 8589.03 8500.00 49 27 11804,12 8689.03 8600.00 49 28 11973.23 8789.03 8700.00 57 53 12107.00 8853.01 8763.98 65 25 VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET OEG/iO0 FEET FEET FEET OEG MIN 0.80 0.08 1.15 0.73 0.58 0.33 3.78 4.14 5.27 0.00 4649.85 S 4666.48 W 6587.65 S 45 6 W 4735.07 S 4774.12 W 6724.07 S' 45 14 W 4820.27 S 4882.96 W 6861.37 S 45 22 W 4905.43 S 4994.27 W 7000.43 S 45 30 W 4986.76 S 5105.86 W 7137.06 S 45 40 5064.56 S 5216.29 W 7270.45 S 45 50 5138.35 S 5323.38 W 7398.72 S 46 0 ~ 5211.46 S 5410.68 W 7512.31 S 46 4 W 5304.86 S 5509.78 W 7648.48 S 46 5 W 5384.42 S 5596.08 W 7765.83 S 46 6 W S 51 19 W 6579.23 S 51 51 W 6716.24 S 52 4 W 6954.14 S 53 13 W 6993.84 S 54 21 W 7131.19 $ 55 15 W 7265.31 S 54 44 W 7394.27 S 46 40 W 7508.07 S 46 59 ~ 76~4.21 S 47 3~ W 7761.58 12207.00 8889.03 8800.00 70 54 12706.00 8989.03 8900.00 82 30 13866.00 9011.50 8922.41 88 1Z S 49 30 W S 47 36 W S 43 30 W 5444.50 S 5666.00 W 7857.80 5764.40 S 6034.40 W 8345.20 6567.50 S 6869.40 W 9503.90 SCHLUMBERGER O l' RECT '[ ONAL SURVEY COMPANY STANDARD ALASKA PROD. CO. WELL Y-20 FIELD PRUDHOE BAY COUNTRY USA RUN 1 DATE LOOOED 08 - JUN - 86 REFERENCE O000?ISS? WELL: Y-20 ~ ~3-5-10-13) (1440' SNL: ~ ' WEL, SEC. 33, TllN, R13E) HORIZONTAL PROJECTION NORTH ~00 ~EF ~0~71Sb-7 SCPJ. E = 1 / Z0130 I N/FT 4000 ! ! ! ! i i ! { i i i i i i i i :. i i i : : : :' ~ , .... --, ..... ., ~ , , , , ; ; : - ......... : ; , i~4--,-,-4-4-; , ,- . _: .L4~i! i~:.'i: i!I! !!il iiii iii! ii~ ! i i I I I i i i ! ! i i i i I ~ _-" i _-" ! ~ ~ i . i I ] i ! : [ ~-:" [ ] ! -'":' : : [ [ ! [-:-L[ : [ ! [ [ i i J, '4--k4-4-] [ ':.L"-L4- -4- :-L '-LJLJ-4-44,-L-ill ~4_L4_._4_& .[_4_ ~Lii I ii i iiii i iiii iii i i i~i: iTI-T iiii i!ii iii! iii iiH-- i i i i i i i i ' : ........ : : iii! iii! !Ii [ ~ i i i [ i iii] 'lll!]iiii i:|.:' !ii: iiii Jill iiii i~il llli i;.'i~ ii i i I[ il i .~i i iii [ iii: iii:: : : : :a : : ~: : : : .......... ~ .......... : .... : : : ...... ~ . , , ...... __ -.":: ..... 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'+'-?': .... : ....~ ~"~'-:":~ ~ ..... ~ ....... "i 1 ZOO0 Z'ZS. PROJECTION ON VERTICAL PLANE 228. - 48. SCALEO IN VERTICAL OEP]'HS HORIZ SCALE = 1/2000 IN/FT Teleco Oilfield S 6116 Nielson Wa, Anchorage, AK 99502 (907) 562-2646 May 28, 1986 3s of Alaska Inc. JOB # 495 TAK STANDARD ALASKA PRODUCTION CO. WELL: Y-20 PRUDHOE BAY AUD #2 Please find attached a copy of the computer calculated MWD directional surveys for the above mentioned well. We at Teleco appreciate this opportunity to provide service 'to Standard Alaska Production Company. Teleco is committed to providing the highest quality of service and we would welcome any comments or questions concerning these surveys or any of our other services. Sincerely, Pat Havard Field Service Supervisor PH/el Enclosures A ~I!~? COMPANY Date 05/28/86 TELECO OILFIELD SERVICES JOB 495 SURVEY CALCULATIONS Page Company: Well: Location: Rig: STANDARD ALASKA PRODU Y-20 PRUDHOE BAY AUD # 2 TELECO Job # 495 TAK Grid Correction: Magnetic Declination: Total Correction: Proposed Direction: 0.00 degrees 31.50 degrees 31.50 degrees 228.10 degrees RADIUS OF CURVATURE CALCULATION MEAS DIRECTION TRUE VERTICAL COORDINATES CLOSURE DOG LEG DEPTH INCL AZIMUTH BEARING VERT DEPTH SECTION N/S E/W DIST ANGLE SEVERITY feet deg deg deg/min feet feet feet feet feet deg deg/100' **************************************************************************************************** TIE-IN 500.00 0.0 228.1 S-48 06 W 500.00 0.00 0.00N 0.00E 0.00 N 90.000E 0.000 TELECO MWD 993.00 15.3 221.7 S 41 42 W 987.16 63.60 52.85S 38.03W 65.11 S 35.738W 3.151 1154.00 18.5 223.1 S 43 06 W 1141.19 110.16 87.40S 69.58W 111.72 S 38.524W 2.003 1359.00 22.5 221.7 S 41 42 W 1333.17 181.58 140.41S 117.98W 183.40 S 40.040W 1.966 814.00 9.7 218.5 S 38 30 W 812.48 25.25 23.23S 13.08W 26.66 S 29.397W 3.182 633.00 4.2 203.1 S 23 06 W 632.88 4.41 4.48S 1.91W 4.87 S 23.100W 3.158 TELECO Job # 495 TAK 05/28/86 Page 2 MEAS DIRECTION TRUE VERTICAL COORDINATES CLOSURE DOG LEG DEPTH INCL AZIMUTH BEARING VERT DEPTH SECTION N/S E/W DIST ANGLE SEVERITY feet deg deg deg/min feet feet feet feet feet deg deg/100' **************************************************************************************************** 1540.00 25.7 224.9 S 44 54 W 1498.37 255.21 194.18S 168.65W 257.20 S 40.976W 1.909 1729.00 29.4 225.2 S 45 12 W 1665.91 342.49 255.93S 230.51W 344.43 S 42.009W 1.959 1918.00 33.7 223.5 S 43 30 W 1826.94 441.14 326.62S 299.62W 443.24 S 42.531W 2.323 2107.00 38.1 222.8 S 42 48 W 1980.00 551.53 407.46S 375.40W 554.03 S 42.655W 2.338 2297.00 40.5 222.8 S 42 48 W 2127.02 671.42 495.78S 457.23W 674.44 S 42.684W 1.263 2485.00 42.8 224.2 S 44 12 W 2267.48 795.95 586.39S 543.24W 799.35 S 42.812W 1.318 2656.00 45.4 223.5 S 43 30 W 2390.27 914.62 672.20S 625.67W 918.33 S 42.947W 1.547 2862.00 46.8 225.9 S 45 54 W 2533.11 1062.77 777.70S 730.07W 1066.69 S 43.191W 1.080 3051.00 46.4 226.6 S 46 36 W 2662.97 1200.02 872.66S 829.27W 1203.83 S 43.540W 0.342 3281.00 47.7 222.8 S 42 48 W 2819.68 1368.04 992.29S 947.66W 1372.12 S 43.682W 1.335 3676.00 47.1 222.8 S 42 48 W 3087.04 1657.74 1205.70S 1145.40W 1663.02 S 43.531W 0.152 4149.00 46.1 224.9 S 44 54 W 3412.03 2000.45 1453.50S 1383.49W 2006.67 S 43.586W 0.384 4619.00 44.1 225.9 S 45 54 W 3743.78 2332.97 1687.25S 1620.52W 2339.42 S 43.844W 0.451 5182.00 43.1 226.6 S 46 36 W 4151.48 2721.01 1955.72S 1900.98W 2727.37 S 44.187W 0.197 5655.00 47.5 231.2 S 51 12 W 4484.10 3057.02 2176.62S 2154.20W 3062.40 S 44.703W 1.158 5894.00 47.3 222.8 S 42 48 W 4645.88 3232.75 2296.49S 2282.75W 3238.03 S 44.828W 2.587 6222.00 49.7 223.1 S 43 06 W 4863.20 3477.41 2476.30S 2450.12W 3483.56 S 44.696W 0.735 TELECO Job # 495 TAK 05/28/86 Page 3 MEAS DIRECTION TRUE VERTICAL COORDINATES CLOSURE DOG LEG DEPTH INCL AZIMUTH BEARING VERT DEPTH SECTION N/S E/W DIST ANGLE SEVERITY feet deg deg deg/min feet feet feet feet feet deg deg/100' 6448.00 49.0 225.6 S 45 36 W 5010.42 3648.49 2598.90S 2569.98W 3655.00 S 44.679W 0.895 6665.00 47.4 227.7 S 47 42 W 5155.06 3810.19 2709.93S 2687.60W 3816.67 S 44.763W 1.032 6984.00 46.2 228.0 S 48 00 W 5373.42 4042.72 2865.98S 2859.99W 4048.88 S 44.940W 0.382 7357.00 44.5 225.6 S 45 36 W 5635.55 4307.98 3047.60S 3053.41W 4314.07 S 45.055W 0.646 7640.00 44.4 225.9 S 45 54 W 5837.57 4505.99 3185.89S 3195.36W 4512.24 S 45.085W 0.083 7922.00 43.2 226.2 S 46 12 W 6041.10 4701.05 3321.35S 3335.89W 4707.39 S 45.125W 0.432 8207.00 43.8 226.6 S 46 36 W 6247.83 4897.14 3456.64S 3477.95W 4903.52 S 45.176W 0.232 8586.00 44.4 228.7 S 48 42 W 6520.00 5160.86 3634.30S 3672.86W 5167.02 S 45.302W 0.417 9059.00 44.3 231.2 S 51 12 W 6858.25 5491.29 3847.03S 3925.93W 5496.60 S 45.582W 0.370 9343.00 44.0 230.5 S 50 30 W 7062.03 5688.88 3971.92S 4079.34W 5693.61 S 45.764W 0.202 9721.00 42.1 231.9 S 51 54 W 7338.24 5946.52 4133.60S 4280.42W 5950.52 S 46.000W 0.563 9991.00 41.0 232.2 S 52 12 W 7540.30 6125.18 4243.73S 4421.64W 6128.64 S 46.176W 0.414 10197.00 43.0 229.4 S 49 24 W 7693.38 6262.85 4330.84S 4528.44W 6266.02 S 46.278W 1.330 10282.00 45.4 230.8 S 50 48 W 7754.31 6322.07 4368.84S 4573.90W 6325.14 S 46.314W 3.048 10378.00 48.7 230.8 S 50 48 W 7819.71 6392.18 4413.20S 4628.30W 6395.12 S 46.363W 3.438 10520.00 52.9 232.9 S 52 54 W 7909.44 6501.95 4481.15S 4714.82W 6504.63 S 46.456W 3.170 10734.00 54.1 233.6 S 53 36 W 8036.73 6673.28 4584.07S 4852.65W 6675.48 S 46.630W 0.619 TELECO Job # 495 TAK 05/28/86 Page 4 MEAS DIRECTION TRUE VERTICAL COORDINATES CLOSURE DOG LEG DEPTH INCL AZIMUTH BEARING VERT DEPTH SECTION N/S E/W DIST ANGLE SEVERITY feet deg deg deg/min feet feet feet feet feet deg deg/100' **************************************************************************************************** 11112.00 54.1 234.0 S 54 00 W 8258.32 6978.01 4764.94S 5099.78W 6979.43 S 46.944W 0.086 11305.00 53.7 236.5 S 56 30 W 8372.02 7132.73 4853.82S 5227.90W 7133.76 S 47.125W 1.068 11522.00 53.0 237.5 S 57 30 W 8501.55 7304.73 4948.64S 5373.91W 7305.34 S 47.359W 0.491 11723.00 48.5 230.8 S 50 48 W 8628.69 7459.39 5039.73S 5499.97W 7459.80 S 47.500W 3.415 11877.00 53.4 228.0 S 48 00 W 8725.68 7578.91 5117.53S 5590.74W 7579.28 S 47.530W 3.481 11970.00 58.2 229.4 S 49 24 W 8777.94 7655.80 5168.28S 5648.51W 7656.16 S 47.542W 5.309 12066.00 63.2 229.4 S 49 24 W 8824.91 7739.46 5222.73S 5712.05W 7739.80 S 47.562W 5.208 12161.00 68.4 229.4 S 49 24 W 8863.84 7826.04 5279.09S 5777.82W 7826.36 S 47.583W 5.474 12254.00 73.4 229.7 S 49 42 W 8894.26 7913.87 5336.08S 5844.68W 7914.17 S 47.605W 5.385 12342.00 76.8 229.4 S 49 24 W 8916.88 7998.88 5391.25S 5909.38W 7999.15 S 47.625W 3.878 12368.00 77.6 229.1 S 49 06 W 8922.64 8024.22 5407.80S 12437.00 79.4 229.8 S 49 48 W 8936.40 8091.82 5451.76S 5928.59W 8024.49 5979.96W 8092.07 S 47.630W 3.278 S 47.646W 2.792 12772.00 84.6 227.3 S 47 18 W 8986.79 8422.89 5671.46S 6227.64W 8423.12 S 47.676W 3.152 12676.00 81.6 227.7 S 47 42 W 8975.26 8327.60 5607.08S 6157.38W 8327.83 S 47.678W 2.905 12630.00 80.7 228.7 S 48 42 W 8968.18 8282.15 5576.79S 6123.50W 8282.38 S 47.675W 0.897 12595.00 80.8 228.4 S 48 24 W 8962.56 8247.61 5553.92S 6097.61W 8247.84 S 47.672W 0.736 12500.00 80.7 229.1 S 49 06 W 8947.28 8153.85 5492.09S 6027.11W 8154.09 S 47.659W 2.335 TELECO Job # 495 TAK 05/28/86 Page 5 MEAS DIRECTION TRUE VERTICAL COORDINATES CLOSURE DOG LEG DEPTH INCL AZIMUTH BEARING VERT DEPTH SECTION N/S E/W DIST ANGLE SEVERITY feet deg deg deg/min feet feet feet feet feet deg deg/100' 12865.00 87.6 227.7 S 47 42 W 8993.12 8515.66 5734.14S 12923.00 89.6 227.3 S 47 18 W 8994.54 8573.64 5773.31S 6296.04W 8515.90 6338.79W 8573.88 S 47.674W 3.254 S 47.673W 3.517 12960.00 90.8 228.0 S 48 00 W 8994.41 8610.64 5798.23S 6366.13W 8610.87 S 47.673W 3.755 6421.11W 8685.86 6492.36W 8783.83 13035.00 91.1 226.3 S 46 18 W 8993.16 8685.61 5849.23S 13133.00 91.2 227.0 S 47 00 W 8991.20 8783.56 5916.49S S 47.668W 2.301 S 47.657W 0.722 13223.00 91.3 227.0 S 47 00 W 8989.23 8873.44 5977.79S 6558.11W 8873.72 S 47.651W 0.116 6627.54W 8968.61 13318.00 90.4 227.0 S 47 00 W 8987.82 8968.33 6042.50S 13382~00 90.6 227.0 S 47 00 W 8987.26 9032.26 6086.10S 6674.31W 9032.55 S 47.644W 0.948 S 47.639W 0.315 13829.00 88.2 223.5 S 43 30 W 9000.31 9478.18 6403.33S 6988.76W 9478.69 S 47.503W 0.000 13740.00 88.2 223.5 S 43 30 W 8997.48 9389.53 6338.81S 6927.56W 9389.98 S 47.541W 0.818 13647.00 87.9 224.2 S 44 12 W 8994.32 9296.84 6271.79S 6863.17W 9297.22 S 47.578W 1.461 13551.00 87.8 225.6 S 45 36 W 8990.72 9201.06 6203.84S 6795.45W 9201.40 S 47.606W 0.958 13481.00 88.1 225.0 S 45 00 W 8988.22 9131.19 6154.63S 6745.73W 9131.50 S 47.624W 4.420 13449.00 89.1 226.0 S 46 00 W 8987.44 9099.23 6132.21S 6722.91W 9099.54 S 47.631W 2.699 TEuECO Oi i ~i~l d PLAN VIEW g600 8000 6400 4800 9200 1800 I WEST 0 600 9200 4800 8000 9600 1 1200 128O0 TbLECO Oi 1 ¢i el d Services VERT I CAL PROSECT I ON 2000 4000 ~ §000 8000 10000 12000 14000 16000 18000 0 2000 4000 6000 8000 1000O 12000 VERTICAL SECTION (~t) E-; R E A T L A f'-! 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W '17'}_0, t8 '3 'Lg4-4,82 W ,~ c, ~':.' q 9 ':' ',:~ 'L '7;' '[ 3 ...i ] W ,_ .; ,,. ,.. ~.; i;':~43,F:8 S i78i.,48 W 1910,30 S 184-9, 04- W 197:3,60 S i920,4-:3 W 204.2,95 S t991,08 W 2115,63 t~ 2061,6F/, W 2191,62 S 2!32, :L1] W '..-'._ ';'_ 44 , ID 2 13 2 '2 .., ') I_, 8 ID W 232'2, [~0 :-'., '2307,'7~5 W ...24 l] ,.-q, E, 2 S 2384-, i'] ~'; 74-89, !7 S 246'2.7'2 W ... ...... . , ._, '...':-,4-13,67 W 2652,75 '.3 26'24.6E, W 2726,62 '.:5 2706,6t W 2798,C, 6 ::; 2785. 50 W 2869, 1':-) :.,~ 2864, 25 W 2938, i7 S ...29:,.',9, S'LW 31]07,57 S 3012, 33 31376, 85 1-] 3083,89 W 314-5,66 S 3153,82 W 3'2!3, 19 S 3224-. 15 W :} 2 i':: I]_, 16 ':.,. 2., ')~_ g_ '",-. ',q, 4 W INTERPOLATED FOR ]. OO FEET 0 F qltB :'EA 0 E P T bi A '.-], P T H 7974 ,$ 'k I. 2 8808 89.48, 9088 7{ '2 ') 9:366 9503 9640 ',q 77 c 99 !]9 1. 084-3 'k 0 ~ 77 10472 10806 i 0976 1_ 'l 3 '16 11454 1. !644 I. 1802 'L 1972 12.,_'"' 07 1271)5 VERT El P T H 6079 6 ! 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'.,:.~. , 9.. 7 W 3 .':'i. 7 fi,, 73 c.., :'~ 4- 99 , -~......v., W 37;; 43, ',..:.~ 3 S 3 S 6 9. :-:: t]bi 3(,!2_, 3:} '3 3~.:,38, I.!~ W ,:- .lO, ,:.:. :.-..i t. 2 c 2. (--'~ 2 (], 3 '2 :._:, :.:;8,S0, :3~ W :; 94. 'J_ ,. 7 t3 i,..l ..',L l] '.L 7, 'l. 6 409i.,8'L W .4-235, 13 \,l 4-309, 'L3 tX 4378. ;::2 W 46 '1. S. 1! ~'3 t-'.. Z. TSt, i_C, ti: 4 iii 5 ':'). , 4, 8 ~-':)33,4S :!. 'q-S 99,63 ~ !_ 22,6 ('l '.-'52:3.%, 63 ',,./ ~'.347, 2i3 W qc,'~c 7"7 5; OATA [ iq t- E P... P 0 L A T E D F 0 R E V E N FEET OF MEASURED DEPTH M E A S, L3. EP TH 'L 00 0 i_ 2 0 0 0 '!. :3 0 0 f3 ]-Rtj '",/E R. T f3 E P T tq -'i- , .... -"!- 0 i9 '-$7!7 .7 !5 ¥'7 :_~ E A ,OEPTH 9 !. 5 549 2 3 0 394-~3 4-63 8 5306 67:37 7' 4 E 8 ! 1 .,% 0"-7 ,,~o 'K) ,,' ~L 8, 9 1 c R E L A-I" i'VE F: R, 0 M 3 E, !3, 1 1 c~ zl."7 ,:t. '7 '!. 3 C G ~ ,..,':' 6 I '~ _ , ',:J 2-, _,.:. :7 ri 3 3 3 c:,., '7' ,, '.,:~. :?, 4 2 4'F,,, 9 I] .'7 ! 1 ,, 9 6 ".-: i.,?,.¢ ~ 58:5 '.'"'-; 8 2 4,4i :5 ¢: 0 C', R 0 I N A T E S WELL-HEAD :39., 2.6 W :'.: 3 2 ,, !39 '!. 3 t373, '? ',:."; :3 3 '¥ 4 ~ 6 i. ",,,i 3 8 S $, 7 '7 W 56 6 8, :2 tD ",,.,,' F, 396, '!.'7 W ~ark~r Iden~lfic~ion Mil A{ KOP 5OO B) ~13 i38~_q Form to 'be inserted in each "Active" well folder to check for timely compliance with our regulations. OPERATOR, WELL NA~E AND NUMBER Reports and Materials to be received by: Date Required Date Received Remarks Completion Report Well History Samples -- Mud Log Core Chips Core Description Registered Survey Plat Inclination Survey D~recr~onal Survey Drill Stem Test Reports Production Test Reports , , Log Run Digitized Data / Standard AlasJ~a · Production Corn 900 Eos! Benson ord P 0 Box 196612 An(borage. Alaska 99519-6612 (907) 564-5111 INDEXED DALLAS ARCO CHEVRON EXXON TO: TEXACO MARATHON MOBIL PHILLIPS STATE OF ALASKA GEOSCIENCES REFERENCE: STANDARD AL ASKA, PRODUC 1' ION Date: 06/24/86 Ti: 77143 SAPC OPEN HOLE FINAL LOGS The following material is being submitted herewith. Please acknowledge receipt by slgnlng a copy of this letter and returning It to this office: DAL/UNIT/STATE: Y-20 Y-21 Exlog-Formation Evaluation log Exlog-Formation Evaluation log 05/12-25/86 12170'-13866' 04/14-19/86 10900'-]1630 STATE ONLY: . DI~J~TI 0NAL 'SURVEYS Magnetic Single"Sho~"'~D%.~ec,~onal~urv.~y D~te: Gyroscopic D-i'~ect~'n~]~"Su.r~ey//~ /.-'" D~te: .x' Job//' Job# ' Victoria Aldridge LR2-1 INFORMATION CONTROL Wel I Records LR2-1 Standard Alasl~a .... . Production Cam 900 East Benson ard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 564-51 I 1 INDEXED TO: REFERENCE: DALLAS ARCO CHEVRON EXXON TEXACO MARATHON MOBIL PHILLIPS OF ALASKA GEOSCIENCES SA]PC FINAL DATA STANDARD ALASKA PRODUCTION Date: 06/13/86 TI: 77113 The following material Is being submitted herewlth. Please acknowledge recelpt by slgnlng a copy of thls letter and returning It to this office: Y-20 TELECO MWI) Gamma 8700-8990 5" 05/24/86 Y-20 TELECO MWD Gamma 11850-13865 2" 05/24/86 Y-20 TELECO MWD Gamma 11850-13866 5" 05/24/86 Rece I ved Date A u,,,t ol the ongmol St~:~nlJ¢~rzl C~l Co,npony Foundect ,,, Clevel¢,,,(I 0~,o ,r, IH/I) Victoria Aldridge LR2-1 INFORMATJ0N CONTROL Well Records hR2-1 MEMORA' 'DUM TO: THRU: FROM: Sta"- of Alaska ALASKA O~_. Al-iD GAS CONSERVATION COI~. .JSION C. V. C~~~'ton Chairmar~J ~_. Lonnie C. Smith~ Commissioner Harold R. Hawkins Petroleum Inspector DATE' May 8, 1986 FILE NO.: D. HPfH. 23 TELEPHONE NO.: SUBJECT: BOP Test SAPC Y-20 Permit 86-84 Prudhoe Oil Pool Thursday, May I, 1986: I left DS ,I1 where I was staying to go to standard Alask~ production Company s Y-20 (33-5-10-13) to witness a BOP test. There was one failure, the IBOP on the top drive. (See ~-=ield report.) i filled out an AOGCC report which is attached. In summary, I witnessed the BOP test on SAPC's Y-20 that Audi Rig 2 crew performed. %~en the IBOP upper Kelly was replaced and tested, the tests were satisfactorily performed. ~02-001 A ( Rev 10-84) 5/84 Inspector STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMMISSION B.O.P.E. Inspection Report Well Operat°r~Y~D/~/~Z) _~/,, .z~//"/~ ./:7/~Z~Z?/2~(7~OZ'" /,"~:)' Representative ~.~ Well k/ ~0' . ~ ~-~/0~"/~) Pe~it ~ ~--~ Location: Sec 'f.J T//~ R//~ 6:M / asing Set Drillin~ Contractor ~ 6//2~ Ri # ~ Representative ~~'~ / Location, General ~ ~ Well Sig~/( ACC~LATOR SYST~ General Housekeeping. Oil Rig Reserve Pit Mud Systems Trip Tank' Pit Gauge Flow Monitor Visual Audio .. :/: Gaf Detectors BOPE Stack Annular Preventer .- ,. Pipe Rams . Blind Rams .i - Choke Line Valves Test Pressure Y-~F.'2 o ~o 0 -'.. H.C.R. Valve Kill Line Valves Test Results: Failures Full Charge Pressure _~.~?0'0 psig .i Pressure After Closure ./~0 psis Pump incr. clos. pres. 200 psig. --'" ~in~Osee. ~ - !, Full Charge Pressure Attained: ~ min~O sec. Controls: Master ~ff Test Pressur~ ,~000 Test Pressure. Test Pressure Test Pressure, Test Pressure Remote O.~ Blinds switch cover~M~,.. Kelly and Floor Safety Valves Upper Kelly Lower KellM Ball Type Inside BOP Choke Manifold No. Valves / / No. flanges ~ ~ Adjustable Chokes ~-~/.~ ~drauically .operated choke ~/.~- ~'~ Test Time ~ hrs. :. Repair or Replacement of failed equipment to be made within ~ days and Inspector/ Commission office notifie~.ffo?~t~jt/~ Remarks: ~ . . Phz7 ?A/x. fD._, Distribution orig. - AO&GCC cc - Operator cc - Supervisor Inspector _ April 25, 1986 ~ . A1 ~r. R. S lan District Drilling Engineer Standard Alaska Production Company P.O. Box 196612 knchorage, Alaska 99519-6612 Telecopy: (907) 276-7542 Re: Prudhoe Bay Unit Y-20 Standard Alaska Production Company Permit No. 86-84 Sur. Loc. t440'81'U.=, 347'~;~L, Sec. 33, T!IN, R13E, ~-. Btmho!e Loc. 2830'S!~L, 2500'WEL, Sec. 5, T!0N, R13E, l~{. Dear Mr. Allan: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not indemnify you from the probable need to obtain additional permits required by law from other governmental agencies prior to commencing operations at the well site. To aid us in scheduling field work, please notify this office 24 hours Prior to commencing installati~n of the blowout prevention equipment so that a representative of the Commission may be present to witness testing of the equipment before the surface casing shoe is drilled. ~ere a diverter system is required., please also notify this office 24 hours prior to commencing e~uipment installation so that the Commission may witness testing b~fo~e drilling below the shoe of the conductor pipe. '~. V. CbZ~tterton Chairman of Alaska Oil and Gas Conservation Conzmission BY ORDER OF THE CO!~MISSION dif Enclosure cc: Department of Fish & Game, Habitat Section w/o enc!. Department of Environmental Conservation w/o enc!. Mr. Doug L. Lowery STATE OF ALASKA ALASt. ,...,_ AND GAS CONSERVATIOI, PERMIT TO DRILL 20 AAC 25.005 ,, , · la. Type of work Drill I~: Redrill Iq,I lb. Type of well. Exploratory C Stratigraphic Test [] Developr~ent Oil Re-Entry ~ Deepen'~1 Service [] Developement Gas [] Single Zone ~ Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool Standard Alaska Production Company 80' KBE feet Prudhoe Bay Field 3. Address 6. Property Designation Prudhoe Oil Pool P.O. Box 196612, Anchorage, AK 99519-6612 ADL 28289 4. Location of well at surface 7. Unit or property Name 11. Type Bond(see 20 AAC 25.025) 1440' SNL 347' WEL Sec. 33 TllN R13E UM Prudhoe Bay Unit At top of productive interval 8. Well nu ,mber Number 1896' SNL 1459' WEL Sec. 5 T10N R13E UM Y-20 (33-5-10-13)PBU K00683449-G-14 At total depth 9. Approximate spud date Amount 2830' SNL 2500' WEL Sec. 5 T10N R13E UM April 28, 1986 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth(MD and TVD) property line 2500 feet Hurl St. #1, 2500 feet 2501 AC 14278'MD 8930'TVD~t 16. To be completed for deviated wells 46.11¢ 17. Anticipated pressure (see 20 AAC 25.035 (e)(2)) Kickoff depth 500 feet Maximum hole angle 0 Maximum surface 3300 psig At total depth 0'VD)8600 TV]~ss psig 18. Casing program KOP #2 90° 11083' Settincj Depth size Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 26" 20" Conductor 80' ~urface - 110' 110' 8 cu. yds concrete 17~" 13-3/8" 72# L-80 Butt 3077' ~urface - 3107' 2680' 4316 cu. ft. Permafros 12¼" 9-5/8" 47# L-80 Butt~/ : 1273~' ~urfac¢. - 12813' 8971' 860 cu. ft. Class G NSCC 8~" 4%" 12.6# .N-80 .FL4S ]~64' 12614' 8938'14278' 9010' Slotted, uncemented 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor Surface Intermediate Production Liner Perforation depth: measured true vertical 20. Attachments Filing fee ~ Property plat ~: BOP Sketch ~ DiverterSketch ~ Drilling program ~ Drilling fluid program~ Timevs depth plot [] Refraction analysis ,~ Seabed report _~ 20 AAC 25.050 requirements 21. I hereby certify that the foregoing is true and correct to the best of my knowledge ~ Signed ~'-~. C..~. (~.~..~_ Title b,,l~., ¢,,,.~ ~,q.,~.L,,,ar.. 6.~(.... Date Commission Use Only APl number I Appr~v~/CzaCe/ I See cover letter Permit Number ,.~)~.;~;~.- 50-- ~;~-¢" ~/.¢-~~ 86 for other requirements Conditions of approval Samples required I~, Yes ~7...No Mud Icg required ~ Yes ~ No Hydrogen sulfide measures ,r-q Yes ~ No Directional survey required ~Yes ,~. No Required working~C~.~P~~M; ~ 10M; ~ 15M oY~ Other: - by order of Approved by ~ '/ 'k~ ~/~//~'. ~;4 Commissioner the commission Ddt . Form 10-401 Rev. 12-1-85 Su/~ ~ triplicate PROPOSED DRILLING AND COMPLETION PROGRA.P.I Y-20 (33-5-10-1 3) Install and cement 80' of 20" conductor to surface. Drilling fluid pro- gram will consist of an 8.-5-9.5 ppg spud mud in the 17-1/2" hole, a 9~0-9~7 ppg water-based mud in the 12-1/4" hole, and a 9.1 ppg oil-based mud in the 8-1/2" hole. Drill 17-1/2" hole to KOP #1 at 500'. Kick off and build angle to 46~1°~ Hold angle and drill to 3107' MD (2680' TVD). Cement 13-3/8" 72# L-80 Buttress casing to surface. Install blowout prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annul ar preventer. Maximum possible bottomhole pressure is 4390 psi at 8800' TVDss based on original reservoir pres- sure. Maximum possible surface pressure is 3300 psi based on a gas col- umn to surface from 8600' TVDss and an oil column to 8800' TVDss. Directionally drill 12-1/4" hole to the 9-5/8" casing point 10' TVD above the Sadlerochit. Hole angle at this point should be 82°. Run 9-5/8" 47# L-80 Buttress/NSCC casing to within 5' of 12-1/4" TD and cement in two stages: First stage using Class G cement around the 9-5/8" shoe. The second stage to be downsqueezed in the 13-3/8" x 9-5/8" annulus followed by nonfreezing fluid. Change over to oil-based mud. Directiona!ly drill 8-1/2" hole to start of horizontal section at 9010' TVD BKB~ Drill 1000' horizontal section. Run drillpipe assisted open hole logs~ Run 4-1/2" slotted liner, and hang from packer/SBR inside 9-5/8" casing, Displace mud with NaC1. Run 4-1/2" internal plastic coated tubing with GLM's and a sliding sleeve and land on polished riser. A subsurface safety valve with dual control lines will be placed 50' below base of permafrost. Install and test Xmas tree~ Displace tubing to diesel through sliding sleeve. Tubing: 4-1/2" 12.6# L-80 A/B Mod. Butt. IPC w/7 GLM's DA¥~/O532D 20" Conductor pRoPOSEDi-DOW~MOLE DIAGRAM, WELL Y-20 C33-5-10-13) PROPOSED DEPTH BKB 110' Ball V~lve 2140' 13-3/8" Casing Shoe 17-1/2" Open Hole · 3107' . 3127' 4-1/2'" 12.6f~ L-80 A/B Mod. Butt. Tbg. 4~lZ2"x9-5/8" Washdown Liner Hanger_ 126~4' with Packer, 'SBR, and X-Profile 9-5/8" Casing Shoe 12-1/4" Hole 4-1/2" Liner Shoe 8-1/2" Open Hole 12813' 12818' 14278' 14278' TACK I;5 5/8" TRIPLE RAM tRATION I STACK 5000 PSI WP DRILLING ANNULAR PREVENTER PIPE RAMS BLIND RAMS CHECK 2" KILL UNE HAND GATE GATE DRILLING SPOOL 4" CHOKE LINE HAND GATE HYDR. ASST. GATE PI PE RAMS I I i000 2000 3000 4000 5000 6000 7000 8000 9O00 I0000 11000 12000 13000 14000 -1000 VERTICAL SECTION SOHIO PETROLEUM COMPANY Y-20 500 FT KOP SECTION AT S 48.10 W COMPUTED BY RADIUS OF CURVATURE SCALE : 1 inch = 2000 feet DRA~,~N : 3-12-86 ' : Warker Identification ~ T~ D£?RT A) KW 500 500 0 .) .AS£ P£RwAIrROST ZIeZ ,OZO 577 c) ^ -- ~)u~u s,z, ,o,o ZTOS ~I K~Z ,,os~ sZo, 7001 ~uZ.o ,.~ ,.. /,oo ,, ,) SAC ,Z~, R~ SHUBLIK 12~4~ 8850 8171 A~!JA~ ~1 ($,il de J) $~L£ROCHIT IZ874 8~81 8585 K) T~T 1~78 J00~ B~88 L) TO 14Z28 ~00~ 9~88 ¢'~ AVLKA~ 0 I000 2000 3000 4000 5000 6000 7000 8000 9000 I0000 I I000 Deporture t04 02 05 Y-22 (Proposed) 600 ---~ OZ 32 o'-- --~ 05 04 OI Y-20 (Proposed) 21 I0 ZO 30 40 .[ I0 2/) 22 30 40 ~ (Actual) I (Actual) ~071' . ~ Y-2 (Actual) Y-6 (Actual}, I L 3 83' J NI- ' ' -I ~Actua I ~ I ~ I (Actual) tRc~uo~ ~e~ , Y-19 I I LAT. = 7~°~6'05.61'' (Proposed) ~ I LONG-= 148°49' 21'96" Y-Ii Red~ill (Actual) (Actual)_ _ 2492' ,, ._~ ~ ~ 17' __ 2780' ~ (Actual) 4 Y-21 (Proposed) PORTION OF TIIN, RISE, UM SCALE I'=l/Z MILE CERTIFICATE OF SURVEYOR / 3170' al(Actual) ! T. II N. T. ION. 'o , 2226' :-I Y-8 ~ (Actual) I I hereby certify that lam properly registered to practice land surveying in the State of Alaska and that this plat represents a location survey of the wellpad shown and the wells thereon. This survey was mode by me or under my supervision-- and all dimensions and other details are correct. Bottom hole locations are furnished by others. · Date Surveyor NOTE: All bottom holes are 8800' sub sea. PAD DETAIL SCALE 1"=:500' ($4-~-I1-1~) · Y' / (~$-~97'-I1-15) · Y-~ (/4-ex-//-/3) · r-3 (43-Za-//-/3) ~ r. 4 (~3-~8-//-/~) ~ ~-~ OI - (~- $4-//- I$) SUMP - 05-/0- (I/- 05 - I0- 13 ) (4.~ - zg- / /- (~i - $$- I/-I$) (2/- 4-/0- (33 - $$-//-/3) eY-8 ieY-9 -La y_/o -.l~-t -~ ·tr.t/ O2 0 Add Proposed BHL Y-Z2 2/24/860~-, Add Proposed BHL y-Icj ~ Y-21 2/20/86~; Revise BHL Y-7,8,9,10~12,8, I~J from Proposed toActual 10/20/81 Add Proposed BHL Y-I$ 7/14/el Add Proposed BHL Y- I0 4 / ~/81 Revise BHLY- 5,4,1~ II from Proposed to Actual 4/ ~/el PdR I Add Proposed BHL Y - ~ ;5 / ZS/el DI.fO Add Proposed BHL Y-8 5 /2 /BI PdR Revised Proposed BHL Y-7 2/2 /81 PJR Add Proposed BHLY-7 I/Z8/81 PJR Add Proposed BHL Y-12 10/9/80 PdR Add Proposed BHL Y- II 9/26/80 PJR All Bottom Hole~ ore 8800' sub sea. Revised BHL Y- 1,2,5 ~6 from Proposed toActuol. 6/25/80LAB NOTE~ Plat dated Aug. ~4:),1979 changed to Oct. 2,1979. BHL 1~5 & 6 changed. C.J.R. I i I AS- STAKED PAD "Y" Located in NE I/4 8~ NW I/4 PROTRACTED SE.C: :5~ & 54~T. IIN.~R.13E.~U.M.rAK. Surveyed for 'SOHIO PETROLEUM CO. Surveyed by F.M. LINDSEY ASSOC. LAND ~ HYDROGRAPHIC SURVEYORS 2502 West Northern Lights Boulevard Box 4-081 Anchorage Alaska II Im Uarkcr ]dcnlifical'ion I~D TVD DEPRT A) K0P 500 500 0 §) BASE P£R~,L~.FROST ZI6Z 2020 577 C) END BUILD 2344 2151 703 D) UCNU 5~26 4oao 2708 E) BASE UPPER CR 7615 5805 4502 F) LeU 10248 7630 6)99 ~) KOP 2 11083 8Z09 7001 H) SAC RIVER 12383 8871 8107 I) SHUBLIK 124¢9 8890 8171 J) SADLEROCHIT 12874 8981 8585 K) TARGET i)278 9009 8988 l) TO 14278 9009 5988 HORIZONTAL VIEW SOHIO PETROLEUM COMPANY Y-20 500 FT KOP CLOSURE: 9988 ft S 48.1 W DECLINATION: 0 de9 E SCALE : 1 inch = 1400 feet DRAWN : 3-12-86 700 700 1400 2100 2800 3500 4200 4900 5600 6300 7000 7700 8400 9100 7700 7000 6300 5600 4900 4200 3500 2800 2100 1400 700 0 700 --- Closest Approach Analgsis ..... , . .[2.a ..t,...e...', ...... Z .-. :..A_ ?..B .c_8._6. Sem~ch R~dius= 3800 COURSE LINE : Location = W-E S.-N TVD(SBS) ( T o p 6f~4470, 00 ~%4~8.~?? ..OB ............. ~.O.Q.,...q.{~ ............................................... Bottom 638334. 36 ~943096. 9~ 9458, 1~ T ............................. ~ ................ .............. ':T:'='F'-'ZT ............ ~"" ................................................. .................................................................. ~ o t ~: A i i .d~ p.t.h.~._ i ~..~.~..~:~ ~.~.~l o ~...~:~i.~. ~.%:~:% '.i~:~.l...:. .......... ...;..L_.,.....~..._J ......... : ...... :,:,:..,~-._:: .......... ;~;~ ........ ~ .................. :,:.:-=~-:~:~:- .......... : :' . . .......... ~ ~_~ S.~._6P.~.!_~.A~ h ~ _~.e.~.~.~/,.,,..I~.~._t:~.~,~..~.i.~.~ ................................ . ................................................................. " WELL IDENT /PROPOSEDX : /NEARByX CLOSEST :: :'/PROPOSED~ /NEARBYX VER TVD DEPART ' 'TVD DEPART DI~ANCE TVD DEPART TVD DEPART D I~ TANC~ 3311i3 3224. 6 1810. 5 3185. 1 11. 1 1667. 1 -,' .~ ~...' AO=.9-,,.O0,,, O0 ~U~L 1 9~e. 1 ~3e~. ~ ~36. 4 O. 0,~ zS]~? ~ ........................................ ::7~' . .- A0~9--~00~701 ~' ' {~ ' ' " .HU~L _ ~ ~,..~.: ....... ..... ~.e~..? ........... ?.~6.; ..................... P..,.P_.:; ............. z.~¢.,~. ~ A029-200670(} STATEI 4755 0 3409. ~ 4747. 0 O. 0 5~55. 1 A()29-~039400 , ...................... . ' ' Y-; 98, 6 O. 0 I00. 0 O. ~ 1134; 4 Aozg-2039500 , Y-2 ~8..6 ....... O..0 t.~ ,. ~ ~...~_:., ........ 10.8~..~ A0~9-2041 i00 Y-5 99. 4 O. 0 100. 0 O. 4 914. 9 Y-4 99. I O. 0 100. 0 O. 5 805. 3 A0~9-Z0431 O0 ?: ( ..~,. .... 0.. 0 .... 0... 0 ......... 0 .,.. 1 ............. g~,.. q ............ ~_~,. 3 ................................................................................................................................................ · Y-6 A0119-2043600 ^o?~-7o513oo · y,il ...... A0~9-~051301 Y-I IRD ^o~9- ~o.~ 1706 Y-i 2 MPTR43 ~282. I A029--2056000 Y-7 500· 0 Y-8 500. 0 A029-2057900 Y-9 393. 0 A0~-2058700 Y-IO O. 0 A,D:~9-2063~ O0 Y-13 1332. 0 .. Y-18 O. 0 AOgg-g09~O00 Y-17 493, 4 Y- 16 ~00. 0 ~0~-~0~4000 500. 0 O. 0 501. 7 4. 6 693. 3 ..... 6-. '6 ....... 67 6 ............. g.'~ 67'~ ............. 500..0.. O.O .... .5_0.7.. Z .................4.=.5. ......... ~_0."3 4406. 5 3047. 4 9396. i 3077. I 4'78~. ~ i082. 4 75. 5 108~3. 7 ~. 7 ~6. 4 I~S3. 2 i3:S C, ~t:',97. '; 81. I 4 7077. 0 5~,33. 7 ' 1530..4 o. o 5o9..;~ ............. ~....~ 7 O. 0 ~,07. 7 O. 7 "6;6 ~o0'.' 6 ...... ~-'? O. 0 .5. 7 ...... 0..0 ............ l~.!,. ? 1337. I 4. 3 ~;~,~. i o. 0 3. Z ........... 0;6 ........... i~..c s ............. The ~ll..~.hi~h ~omes ¢l~se. st..to...~be....p~.op.o..sed_~ell.....i.~z ................ A029-2051~01 Y-llRD Closest approach distance = 30.~ ~eet ~iCK OF~ ~o~, this run ~= 500.0 F~t ' ..... Closest Apr..'romc' Analqs,,~ ................. Da.re.. %rA[%~,--:86_ T~F:e.,:..,..13 C2: .................................... ~ ................ r.:y-~7;7~ ...... ~ .................................................. Sea. ch Radius=.'3800 7 DE~RE'F LEAD LINE ....... Eo.r....p p..o.~..~ s e d....,,,~l.h'. _Y_-_~0_~_[~41.-__5 ~ lO _-. 13 ] ......................................... Location = W-E S--N TVD ~ SP,,c; ) _Top ................ b.z~ 4.~.7 O~...O0 ......... 0.9..~ B.DQ~..Q.O .................... r. SQ...00 ................................ Bottom 63907b. 84 594~391 26 9458. 12 ...... Note; .....1~11_ d e p~.~.h.s._ i,o.:..ffee**t..:..I~.el ~ ~_.~ eil.u._. B u.s h in~___(.B ~B) ........................................................ ...................................................................................................... C.i~ s.~.~.:t,.. &p.~.r.~a nil ................... NELL IDENT /PROPOSED\ /NEARBY\ CI..OSEST TVD DEPART TVD DEPART D1 ',:., TANCE A029-2001000 331113 30[-23. 4 1609 3 ~994. 4 7 6 ~75 9 HURL i 9538. i 838~. 9 9536. 4 O, 0 Z'~9. 5 A0~-~006700 STATE1 5~40. 3 3914 3 5~!3~. 3 O. 0 Y-1 ~B. 6 O 0 100. O O. ~ AO~9-'~039500 Y-2 .......... ~8.,.6 .............. O, 0 ..... 1.O0, 0 ........................ 0..~ ......... ~0a~-2041-i-~0" ' Y-~ ~9. 4 O. 0 ~00 0 0 4 ¢14. 9 Y-4 99. 1 ............................................................. 0.0 100. 0 6'.'-~ ................ 3~i '3 ....... A027--~0431 O0 - Y-~ .......................... ~.._~ ............. 0 _0 ............. 9,. ~ .......... O. 9 .......... ':~4. ,~ ..... ;~0a9-"~043~00 Y-'5 500. 0 0 0 501. 7 4. ~ ;~73. 3 ~oa~zaOoijoP ................ Y-ii o. o ~.'~ ................................ s.~ 8';> .............~'~'"~' ........ .2!.76.6 14~ O 6604. i ...... 22Q,~.,_.Q ..............3_0..2.~...Z ......... A0~9-~051301 Y.,!.!.R~ .............. 50~_0 0...0 ...... 507..2 .............. ~.}_ .......... ~_~.,_~ .........3569.0 A029-2051700 Y-I. 2 I060.4 ~0. i 1066,6 '-;.5 a~T~4~ 7~60.~ ~,6~ I 4~oa. 4 ~'.'i ~.;0~'.-i .... A0ag-a0~6OOO Y-? 50~.0 O. 0 .~07,.~ ....... Y-~ 500 0 0. 0 507. 7 0 ? 364. 4 AOag-2057700 Y-9 '' a~7o o.o 460.6 i'."~ .......z~2. e A0ag-a058700 ¥-1o o. o o. o 5. Y-iS O. 0 O, 0 3. '6 t. 0 'i._~8' A0~9-209~000 Y-17 493. 4 O. 0 500, 0 3 0 ! '~_~.. ............. ~ .... ~ . A02~-~0~3200 Y-16 500,0 C.O 516 ( ~- ._$I~D~'12' [DRANO13]Y20'=~OSAP SUMMARY ~ ............... .The, we. Il '~hich come~' ~los~ to ~h'e:p:r'OP~'~:~'d '~elI .......................................... ..................... ................................... ~,. Closest approach distance =, ,. 30, RIC~ OFF ~o~ this ~un = 500. z~D ' $~$r-~f ~-~ ~x~77,~'s '~_-'.'7 . 2qO /8~ 8&L P4~ID I:~PS To ,'dUD - czC~ ro ,m~m 1 - Brandt Dual Tandem Shale Shaker 1 - Demco 6-12" Cone Shale Desander 1- Demco 416H w/16 cones & (1) Demco 48H w/16 cones (Desilter) 1 - Drilco Atmospheric Mud Degasser f ~0 ost. 1 - 200 gpm Operating Capacity Centrifuge 15 - Brandt MA5 Mud Mix Agitators 1 - 150 bbl. Trip Tank 1 - Recording drilling fluid pit level indicator with both visual and audio warning devices at driller' s console - TANI k: Z 7O 1 - Drilling fluid flow s_ensor with readout at dril]~%~.',s console CHECK LIST FOR NEW WELL PERMITS ITEM _APJ~ROVE DATE (1) Fee ~/~'~ //~%1'~ 1. Is (2 thru 8) (8) (3) Admin 9~~~.t 17-~:-~ (10 and 1 (14 thru 22) (23 thru 28) (6) OTHER (29 thru 31) . Geology: HWK ._~ WVA Engigeering: LCS ~ BEW/" rev: 04/03/86 6.011 e 10. I1. 12. 13 Company Lease & Well No. NO 2. Is 3. Is 4. Is 5. Is 6. Is well to be deviated and is wellbore plat included ................ ~ 7. Is operator the only affected party ...................... 8. Can permit be approved before ten-day wait ............... . Does operator have a bond in force ................................... Is a conservation order needed ...................................... Is administrative approval needed ................................... Is the lease number appropriate ..................................... Does the well have a unique name and number 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. YES the permit fee attached ~ eeeeeeeeeeeeeeeeeeeeeee.eeeeeeeeeeeeeee... ~ell to be located in a defined pool ............................. ~-~ well located proPer distance from property line ...... ~'· well located proper distance from other wells ........ sufficient undedicated acreage available in this pool Is conductor string provided ........................................ Will surface casing protect fresh water zones ....................... Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement cover all known productive horizons ................ ~ ..... Will all casing give adequate safety in collapse, tension and burst.. Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed ............................ For 29. 30. 31. Is a diverter system required ....................................... Is the drilling fluid programsschematic and list of equipment adequate Are necessary diagrams and descriptions of ~--~-n~ BOPE attached. Does BOPE have sufficient pressure rating - Test to ~O~ psig .. Does the choke manifold comply w/AFI RP-53 (Feb.78) .................. Is the presence of H2S gas probable ................................. 32. exploratory and Stratigraphic wells: Are data presented on potential overpressure zones? ................. Are seismic analysis data presented on shallow gas zones ............ If an offshore loc., are survey results of seabed conditions presented Additional requirements .............................................. INITIAL GEO. UNIT ON/OFF POOL CLASS STATUS AREA NO. SHORE