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Home My WebLink About178-0797. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU 07-12 Tbg Swap Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 178-079 50-029-20337-00-00 11887 Conductor Surface Intermediate Production 9283 80 2626 11859 11846 20" 13-3/8" 9-5/8" 9260 38 - 118 36 - 2662 34 - 11887 38 - 118 36 - 2662 34 - 9286 none 520 2670 4760 none 1530 4930 6870 11206 - 11454 # 5-1/2" 17# x 4-1/2" 12.6# , 3-1/2" L-80 30 - 10311 8919 - 9049 Structural 4-1/2" HES TNT Perm , 10184 , 8388 No SSSV 10184 , 11168 8388 , 8900 Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 PRUDHOE BAY / PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028309 30 - 8465 47 119 5117 0 2131 1869 0 0 267 258 324-405 13b. Pools active after work:PRUDHOE OIL 4-1/2" Baker DB , 11168 , 8900 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 11:22 am, Sep 12, 2024 Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2024.09.12 11:16:04 - 08'00' Bo York (1248) RBDMS JSB 091924 DSR-9/13/24WCB 10-7-2024 ACTIVITYDATE SUMMARY 5/18/2024 T/I/O=SI/1150/0 PPPOT T (pass) & PPPOT IC (pass) Check psi. on IC pack off, ~70 psi, bled off almost immediately, shut in 10 min., 0 psi, test 500 psi/5 min., 0 psi lost, test 3500 psi., lost ~150 psi first 15 min., lost 0 psi second 15 min., bleed off, check psi on lower IC M-M seal, 0+ psi, test 500 psi/5 min., 0 psi loss, 3200 psi/ 30 min., lost 100 psi first 15 min., lost 0 psi second 15 min., bleed off, Alemite fitting check ball not holding on tubing hanger void, couldn't get initial psi, but was able to let it bleed through Alemite cap, function upper lock down screws one at a time, 4" out, 3-1/4" in, retorque to ~ 850 ft/lbs, test void 500 psi/5 min, 0 psi loss, test 5000 psi, lost 100 psi first 15 min., lost 0 psi second 15 min., bleed off, RDMO. 7/17/2024 ***WELL S/I ON ARRIVAL*** (rwo capital) WELL CONTROL DRILL- (fire safety & inspect extinguishers) RAN 3.79" CENT & 2.50" SAMPLE BAILER TO 4-1/2" x 3-1/2" XO AT 11,176' MD (bailer empty) SET 4-1/2" SLIP STOP CATCHER AT 9338' SLM. ***CONTINUED ON 7/18/24 WSR 7/18/2024 ***CONTINUED FROM 7/17/24 WSR*** (RWO capital) PULLED TG-OGLV FROM ST# 5 (9,088' md) PULLED TG-LGLV FROM ST# 3 (6,717' md) & ST# 1 (2,783' md) SET TG-DGLV IN STA #1 @ 2,783' MD SET TG-DGLV IN STA #3 @ 6,717' MD TB R/U CIRCULATE 65BBLS TBG TO IA 1BPM (open bleed on IA) SET TG-DGLV IN STA #5 @ 9,088' MD PULLED ER TEST TOOL FROM ER PACKER @ 11,201' SLM PULLED ER PACKER FROM 11,202' SLM ***CONTINUED ON 7/19/24 WSR*** 7/18/2024 T/I/O = 1000/950/0 (Assist Slickline) TFS Unit 1 Pumped a total of 65 BBLS Crude while assisting Slickling Fluid packed the Tubing and IA. Slickline in control of well upon departure FWHP= 500/260/0 7/19/2024 ***CONTINUED FROM 7/18/24 WSR*** (Rwo capital) RAN 4 1/2" BLB & 4 1/2" WIREGRAB TO XO @ 11,176' MD RAN 3 1/2" BLB & 3 1/2" WIREGRAB TO 11,500' SLM (Recovered both springs & partial rubber) DRIFT w/ 10'x2" BAILER TO 11,500' SLM RAN HES 24 ARM CALIPER FROM ~11,400' MD TO SURFACE (Good data, large metal pieces stuck to caliper) RAN 2.30" & 2.60" MAGNETS TO ~11,300' SLM (Recovered dozens of metal pieces) ***CONTINUED ON 7/20/24 WSR*** 7/20/2024 ***CONTINUED FROM 7/19/24 WSR*** (Rwo capital) RAN 2.60" MAGNET TO 11,300' SLM (Recovered dozens of pieces of metal) RAN 3.70" CENT. TAG TOP OF XO AT 11,199' SLM / 11,176' MD (flag) SET 3-1/2" EVO-TRIEVE @ 11,231' SLM / 11,208 MD PERFORMED CMIT TxIA TO 3,000psi (passed) SET 3-1/2" RIG JUNK CATCHER(wellpicfolder) ON EVO-TRIEVE AT 11,222' SLM (115" Top ~11,195'MD) ***WELL LEFT S/I ON DEPARTURE, PAD-OP NOTIFIED OF STATUS*** Daily Report of Well Operations PBU 07-12 Daily Report of Well Operations PBU 07-12 7/20/2024 T/I/O=460/466/0 TFS Unit 1 Assist Slickline (MIT-TxIA) Pumped 24.4 BBLS of DSL to Reach a MAP of 3250 psi on the TBG and IA for CMIT TxIA ***PASSED*** SP=3138/3157 1st 15 min the TxIA lost 71/71 psi. 2nd 15 min TxIA lost 35/35 psi. for a total loss of 106/106psi in a 30 minute test. Bled back 15 BBLS of DSL to Reach SP. FWHP=545/550/0 Slickline in control of Well upon departure. 7/26/2024 *** WELL SI ON ARRIVAL*** (TUBING CUT) MIRU AKEL PT TO 250 LOW AND 2500PSI HIGH RIH. HEAD 6X2 (1-7/16" FN)/WELLTECH MECHANICAL CUTTER. WEIGHT 230# OAL: 24' LOG CORRELATED TO TUBING TALLY DATED 06-JULY-1988 CCL TO BLADES: 18.3' CCL STOP DEPTH: 11091.7' CUT DEPTH: 11110' WELLTECH DEPTH: 4.80" PRE CUT T/I/O=900/400/0, POST CUT T/I/O=650/600/0 RDMO AKEL ***JOB COMPLETE*** 7/27/2024 T/I/O =441/410/0 Temp = S/I (TFS Unit 1 Perform Circ-out) Pumped 16 BBLS of Crude to verify well would recieve more than 3.5 BPM under 2500psi. Established 4.5 BPM at 631/368/0 psi. Unable to aquire fluids before midnight Job postponed per WSL. FWHP= 238/211/0 7/28/2024 T/I/O = 200/215/40 (RWO CAPITAL) **CIRC OUT** Pump 53 bbls of "Deep Clean" fluid down TBG. Pump 1084 bbls 1% KCL down TBG take returns out of IA to 07-30 FL. Pump 169 bbl diesel FP and allow 1 hour for U Tube. DSO notified of well status upon completion. Start pump report for well 07-30 FL FP. Valve positions = SV,WV,SSV = Closed MV = Open IA,OA = OTG Hardline/Choke skid = Closed FWHPs = 245/250/50 7/29/2024 T/I/O = 10/VAC/50. Temp = SI. Bleed WHPs to 0 psi (pre rig). No AL. Flowline disconected. T FL near surface. Bled TP to BT to 0 psi in 1 min (gas). OA FL near surface. Bled OAP to BT to 0 psi in < 5 min. OAP pressure slowly increasing. Hold open bleed on OA for 20 min. Monitor for 30 min. OAP increased 10 psi. Bled Balance Line pressure from 500 psi to 0 psi in 5 min (gas) Pressure increased 20 psi. Bled control line from 800 psi to 0 psi in 5 min (gas). Control line pressure unchanged. Final WHPs = 0/VAC/10 SW, WV, SSV = C. MV = O. IA, OA = OTG. 13:30 8/4/2024 T/I/O = 0/V/0 Remove SMR control line termination & install blanks. Sting Control line void 0+. Rig up test equipment & test at 5000 psi for 10 min, good test. Bleed pressure & remove SMR control line termination flanges, plug tubing hanger control line ports & install blind flanges. Change out old test fittings to new. Test control line void at 5000 psi for 10 min good test. Bleed pressure secure well RDMO. 8/7/2024 T/I/O = Vac/Vac/Vac. Set 5" K BPV and Test Dart. RD production tree and THA, RU 13" BOP w/ shooting Flange. Torqued to API specs. Set VR plug in Companion IA, RD Companion IA, Installed Blind w/ allemite fitting. RDMO. 8/7/2024 T/I/O=0/V/0. OA install, installed 3 1/8'' FMC companion OA (TAG#2) AND PT TO 3500 PSI. PASS PULL 3¿ grey VR Plug , PT OA blind to 2500 psi. PASS REMOVED 3 1/8'' WORKING OA SET 3'' GREY VR PLUG PT OA BLIND TO 3500 PSI ..PASS ***Job Complete*** See log. MIRU AKEL PT TO 250 LOW AND 2500PSI HIGH RIH. HEAD 6X2 (1-7/16" FN)/WELLTECH MECHANICAL CUTTER. WEIGHT 230# OAL: 24' LOG CORRELATED TO TUBING TALLY DATED 06-JULY-1988 CCL TO BLADES: 18.3' CCL STOP DEPTH: 11091.7' CUT DEPTH: 11110' Daily Report of Well Operations PBU 07-12 8/7/2024 Pump Kroil into hanger body seal test void to make the metal seal easier to release upon pulling of the hanger. Check tubing hanger void for psi., nipple down THA & tree, clean void & ring groove, make up 5.875" MCA lift sub to tubing hanger lift threads 17-3/4 RH, back it out & lay it down, insert test dart in top of K-plug for BOP test, record measurements from top of flange to top of hanger neck (1-7/8"), top of BPV (5-3/4"), & top of test dart (13-3/4"). function hanger lock down screws one at a time to 3-7/8" clear bowl, re-torque to 550 ft/lbs, put 5k psi on tubing hanger body seal test void, RDMO 8/9/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. 07-28B: Disconnect flow line. RD bird bath. RD and lift off riser spools and flow spool. Disconnect pipe sheds and move. Lay down stairs. Disconnect and move MP#2. Bleed down Koomey system, disconnect hoses. Pull rack pins and install stabilizers. Break down flow line and Koomey lines. Move catwalk and Koomey coffin. Lay over mast. Remove boomers and chains to mudboat. Raise all jacks and move to side of location. Move and spot in Co-Man and Doghouse trailers on 07-12. Spot in crane. Lift GBR Tongs and spools off floor. Lift floor from cellar. Lift cellar and chain down for travel. Remove pits cribbing and ready for travel. Stage GBR equipment for 07-12. On 07-12. Adjust mudboat, lift and place cellar. Level cellar. Spot in pits and install cribbing. Lift Rig floor onto cellar. Lift flow spool and spacer spools onto floor. Spot in tool trailer, cuttings box, upright and tiger tank. Change fittings on 13-5/8" BOP. Spot in ASR-1. Install electrical and coms. Level Rig and lift mast. Remove rack stabilizers and install rack pins. RU stairs. PU and install tong rack. Ru tongs and slips. Spot in and connect catwalk. Spot in pipe sheds. Fill pit#4 with 35BBLS fresh water for BOP testing. Route and install Koomey lines. RU jumper hoses. Install HCR hoses. RU 6" flow line and pop-off line. ***CONT WSR ON 09/10/2024*** 8/10/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. Continue RU: ASR-1, MP#2, install electric and control lines. Service manifold valves and install spools on BOPs. RU hoses to tiger tank, upright to pits. Replace hydraulic line in Koomey room. Function test BOPE, pipe and blind rams reversed. Change fittings. OPS check BOPE - Good. RU sheave for pulling control lines. RU 4-1/2" test mandrel. Rig accepted @ 06:00 8/10/2024. Test New BOPE to 250/5,000 psi. F/ 5/5min. Witness waived by AOGCC. ND flow and riser spools. Install 7" Otis x 11" Flange. PU T-Bar, pull test dart and K-plug BPV. RD lubricator and Otis flange. Function test MP#2. Reverse circulate out DSL w/ 75 BBLS 1% KCl 5bpm @ 400psi taking returns to Tiger Tank. FWD circulate out DSL from IA w/ 216 BBLS 1% KCl 5bpm @ 300psi taking returns to Tiger Tank. Blow down lines, PU landing joint w/ TIW, Kelly hose, and MU XO for RH Acme. MU to hanger. BOLDS. ***CONT WSR ON 08/11/2024*** 8/11/2024 Make up 5.875" MCA landing joint to hanger lift threads, check IA for psi, 0 psi, back out lock down screws, pull hanger to rig floor, cut & cap (2) 1/4" control lines, lay down hanger & landing joint, RDMO 8/11/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. Pull and unseat hanger at 118k, pull to 145k. Cycle pipe from 80k to 145k 16x and come free. Travel weight 135k. Pull hanger to floor and disconnect control lines. BO hanger and lay down. POOH w/ 4-1/2",12.6#,L, IBT-M completion F/ TBG cut at ~11,108' - T/ 2,069'. MISSING 4 SS BANDS. Swap handling equipment to 3-1/2". ***CONT WSR ON 08/12/2024*** Make up 5.875" MCA landing joint to hanger lift threads Pull and unseat hanger at 118k, pull to 145k. Cycle pipe from 80k to 145k 16x andgy come free. Travel weight 135k. Pull hanger to floor and disconnect control lines. BOgg hanger and lay down. POOH w/ 4-1/2",12.6#,L, IBT-M completion F/ TBG cut atgy ~11,108' - T/ 2,069'. MISSING 4 SS BANDS Daily Report of Well Operations PBU 07-12 8/12/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. MU YJOS 9-5/8" Storm Packer to string. MU 10' 3-1/2" Pup and 40' Joint. Set Packer at 55' COE - 40' below ULDS. Line up to pump down TBG. Pressure up below Storm Packer to 1000psi. Lock in. Test Storm PKR to 3,500psi from above - good. Release Storm PKR. FWD circulate 32 BBLS 1% KCl down TBG taking returns up IA to Tiger tank. LD Storm Packer. Continue POOH w/ 4-1/2",12.6#,L, IBT-M completion F/ 2,100' - T/ 313' ***CONT WSR ON 08/13/2024*** 8/12/2024 ***ASR RIG ASSIST*** STAND BY FOR RIG. ***CONTINUED ON 8-13-24*** 8/13/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. Continue POOH w/ 4-1/2",12.6#,L, IBT-M completion F/ 313'. OOH w/ 3.75' Cut Joint. Drift Scoop Guide w/ cut - good. Final clamps recovered - 27 of 30 or, 3 missing. Multiple Slickline runs w/ 8.48" Junk Basket to TBG cut at 11,124' SLM - recovered 2 SS Bands and chunks of rubber. RIH w/ 8.20" scoop guide/overshot. Set on to TBG cut at 11,124' SLM. RIH w/ 3.80" JB to 3-1/2" XO at 11,194' SLM - recovered 4" piece of control line. RD Slickline. RU and RIH w/ 4-1/2",12.6#,13Cr-80, VamTop R3 Completion T/ 1,204'. ***CONT WSR ON 08/14/2024*** 8/13/2024 ***CONTINUED FROM 8-12-24*** (ASR rig assist) MADE 3 RUNS W/ 6" JUNK BASKET w/ 8.48" RING TO TBG STUB @ 11,124' SLM. Recovered 3 large pieces of pkg rubber, and 2 missing bands). SET SCOOP GUIDE (oal = 75", max od = 8.2", min id = 3.95", drifted w/ 3.80") @ 11,124' SLM. RAN 4-1/2" JUNK BASKET w/ 3.80" RING TO XO @ 11,194' SLM (recovered small piece of metal & small piece of rubber). ***JOB COMPLETE*** 8/14/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. Continue RIH w/ 4-1/2",12.6#,13Cr-80, Vam-Top R3 Completion F/ 1,204' T/ 10,270' P/U WT = 113K S/O WT = 81K Well returning correct displacement P/U & M/U landing joint to hanger. Adjust BOP stack to center. Land on correct RKB. RILDS. Remove landing joint. End of tubing = 10,311'. Reverse in 580 bbls of 8.4ppg KCL CI brine. Shut down monitor Well static. Drop ball & Rod. Pressure up tubing to 3,300 psi to set PKR. MIT-T & MIT-IA. All passing tests. Bleed tubing to shear out RKP- shear. Good shear. Line up to reverse in FP diesel w/ LRS. PT lines to 3000 psi. *** Cont. WSR on 8-15-24 *** 8/14/2024 Make up hanger to string of tubing, run in hole, land on RKB 13-26', verify landed looking through IA valve, run in lock down screws per FMC procedure, torque to 500 ft/lbs, stand by for rig to pump, set 4" CIW TWC. 8/15/2024 RWO Scope: Pull 4-1/2" L-80 Completion, Run New 4-1/2" 13Cr-80 Completion. Rig released from PBU 07-12 at 06:00 on 8-15-2024 8/15/2024 BOP is off, clean void, ring groove, hanger neck ID, install new SBMS, install new BX- 160, land THA, stand by for well support to torque, test hanger void to 500 psi/5 min., 0 psi loss, test 5000 psi/30 min., lost 200 psi first 15 min., lost 0 psi second half, bleed off test psi, test SBMS 500 psi/5 min. prior to WS tree test due to being needed on another job, 0 psi loss, bleed off, RDMO 8/15/2024 Installed 4"H TWC for ND of BOP Continue POOH w/ 4-1/2",12.6#,L, IBT-M completion F/ 313'. OOH w/ 3.75' Cut Joint. Drift Scoop Guide w/ cut - good. Final clamps recovered - 27 of 30 or, 3 missing. Continue RIH w/ 4-1/2",12.6#,13Cr-80, Vam-Top R3 Completion F/ 1,204' T/ 10,270' Shut down monitor Well static. Drop ball & Rod. Pressure up tubing to 3,300 psi to set PKR. MIT-T & MIT-IA. All passing tests. Daily Report of Well Operations PBU 07-12 8/16/2024 T/I/O = TWC/0/0. Post ASR. ND 13" BOPs, Installed new 13" THA and 4" CIW production tree. Torqued flanges to spec. PT'd to 300/5000psi. Passed. Pulled 4" "H" TWC. Final WHPs = 0/0/0. ***Job Complete*** 8/16/2024 ***WELL S/I ON ARRIVAL*** PULL BALL & ROD @ 10,259' MD PULL RK-DGLV FROM STA.# 3 @ 6,611' MD PULL RK-SHEAR VALVE FROM STA.# 4 @ 3,716' MD SET RK-DOME (16/64" ports, 1500 TRO) IN STA. # 4 @ 3,716' MD RIH W/ RK-S/O (20/64" PORTS) ***CONTINUE 8/17/24*** 8/17/2024 ***CONTINUE FROM 8/16/24*** ATTEMPT TO SET RK-OGLV IN ST#3 @ 6,611' MD, DROPPED VALVE FISH VALVE FROM RCH @ 10,259' MD SET RK-OGLV IN ST#3 @ 6,611' MD PULLED RHC FROM X-NIPPLE @ 10,259' MD PULL JUNK CATCHER @ 11,200' SLM EQUALIZE EVO @ 11,211' SLM ***CONTIUE 8/18/24*** 8/18/2024 ***CONTINUE FROM 8/17/24*** RAN 3.68" CENT. 2- X 1-7/8" STEM, 3.70" CENT. 2-3/8" GR(bumping evo until scoop guide) S/D @ 11,176' MD RAN 2.70" BARBELL w/ 2.60" BELL GUIDE & 2-3/8" GR, PULLED EVO FROM 11,280' SLM ***WELL S/I ON DEPARTURE*** PULL BALL & ROD @ 10,259' MD@ PULL RK-DGLV FROM STA.# 3 @ 6,611' MD@ PULL RK-SHEAR VALVE FROM STA.# 4 @ 3,716' MD@ SET RK-DOME (16/64" ports, 1500 TRO) IN STA. # 4 @ 3,716' MD 7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in this pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU 07-12 Tbg Swap Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 178-079 50-029-20337-00-00 ADL 0028309 11887 Conductor Surface Intermediate Production 9283 80 2626 11859 11846 20" 13-3/8" 9-5/8" 9260 38 - 118 36 - 2662 34 - 11887 2447 38 - 118 36 - 2662 34 - 9286 none 520 2670 4760 none 1530 4930 6870 11206 - 11454 5-1/2" 17# x 4-1/2" 12.6# , 3 L-80 32 - 111798919 - 9049 Structural 5-1/2"Baker SAB , 3-1/2" Baker HB/DB No SSSV 11168 , 11324 8900 , 8981 Date: Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 PRUDHOE BAY 7/22/2024 Current Pools: PRUDHOE OIL Proposed Pools: PRUDHOE OIL Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov Digitally signed by Bo York (1248) DN: cn=Bo York (1248) Date: 2024.07.15 12:10:56 - 08'00' Bo York (1248) 324-405 By Grace Christianson at 2:16 pm, Jul 15, 2024 24472447 BOPE test to 3000 psi. Annular to 2500 psi. DSR-7/15/24 10-404 SFD 7/16/2024MGR24JUL24*&: Jessie L. Chmielowski Digitally signed by Jessie L. Chmielowski Date: 2024.07.25 08:46:20 -08'00'07/25/24 RBDMS JSB 073024 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU 07-12 Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 178-079 50-029-20337-00-00 11887 Conductor Surface Intermediate Production 9283 80 2626 11859 11188 20" 13-3/8" 9-5/8" 8910 38 - 118 36 - 2662 34 - 11887 38 - 118 36 - 2662 34 - 9286 none 520 2670 4760 11188 1530 4930 6870 10812 - 11454 5-1/2" 17# x 4-1/2" 12.6# , 3-1/2" # L-80 30 - 10312 8720 - 9049 Structural 4-1/2" HES TNT Perm , 10184 , 8388 No SSSV 10184 , 11168 8388 , 8900 Bo York Operations Manager Jerry Lau Jerry.Lau@hilcorp.com (907) 564-5280 PRUDHOE BAY / PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028309 30 - 8465 76 865 3484 51447 2070 3 2019 2001 270 1004 N/A 13b. Pools active after work:PRUDHOE OIL 4-1/2" Baker DB , 11168 , 8900 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations Digitally signed by David Bjork (3888) DN: cn=David Bjork (3888) Date: 2024.11.12 12:33:01 - 09'00' David Bjork (3888) DSR-11/21/24 WCB WCB 2-7-2025 RBDMS JSB 111824 ACTIVITYDATE SUMMARY 10/20/2024 *** WELL SHUT IN ON ARRIVAL*** (PLUG SET / ADPERF) MIRU AKEL PT 300 LOW AND 3000PSI HIGH. LOG CORRELATED TO GR ON HALLIBURTON MEMORY COIL FLAG LAG DATED 19JULY24 SET NS CIBP MID ELEMENT AT 11188'. MID FIRST BLAST JOINT IN 3.5" TUBING. CCL-ME=14.2', CCL STOP=11173.8'. SIT DOWN AFTER SET. PERFORATE 10812-10822 WITH 3.125" 6SPF 60PHASE HSC W/ BASIX XDP CHARGES CCL-TS=7.3', CCL STOP=1084.7'. CONFIRMED SHOTS FIRED. RDMO AKEL PERFORM MAN DOWN DRILL WITH WSL *** WELL SHUT IN ON DEPARTURE, JOB COMPLETE*** Daily Report of Well Operations PBU 07-12 PERFORATE 10812-10822 SET NS CIBP MID ELEMENT AT 11188'. RWO Procedure 07-12 PTD: 178-079 Well Name: 07-12 API Number: 500292033700 Current Status: Not Op, Secured with TTP Rig: ASR #1 Estimated Start Date: 07/28/2024 Reg.Approval Req’std? 10-403, 404 Date Reg. Approval Rec’vd: Regulatory Contact: Carrie Janowski Permit to Drill Number: 178-079 First Call Engineer: Jerry Lau 907-564-5280 907-360-6233 Second Call Engineer: Dave Bjork 907-564-4672 907-440-0331 Current Bottom Hole Pressure: 3300 psi @ 8800’ TVD 7.3 PPGE I Average of surrounding wells Max. Anticipated Surface Pressure: 2447psi (Based on 0.1 psi/ft. gas gradient) Last SI WHP: 1510 psi Min ID: 2.72” ID CMT Donut @ 11232’ Max Angle: 61 Deg @ 10600’ MD Brief Well Summary: Well 07-12 was drilled in 1979 and began production in 1981 at 6000 BOPD and has accumulated over 21 MM BBLS since. This GDWFI slant well behaved more like a gravity drainage well until 1999 when injection support from 14-01A began to suppress gas rate and increase water cut. Decades of profile modification plays have attempted to chase the oil column within the original liner. Current production is high water cut with very little gas or oil. The production packer was set at the base of Z3, which hindered the prospect of thru tubing Z4B rich gas access. TxIA communication through a leaky PBR above the production packer was identified in 2015. A series of patches have temporarily repaired the TxIA. The well has been shut in since the PBR patch last failed in 2022. The patch was not rerun because production was near marginal and didn’t support the economics for a repair. The plan forward is to perform a tubing swap to recomplete uphole to allow access to Z4B rich gas and set the wellbore up as a donor for a future GDWFI CTD ST. Notes Regarding Wellbore Condition: x PPPOT-T passed to 5000 psi on 5/18/24. x PPPOT-IC passed to 3500 psi on 5/18/24. x CMIT-TxIA passed to 2630 psi on 12/10/22. We plan to retest prior to RWO. x TBG leak at PBR @ 11154’ MD. x Well currently has 3-1/2” ER PKR with CAT Standing Valve in TBG tail. We plan to replace with EVO-trieve TTP w/ Junk Basket prior to RWO. x Plastic coating TBG. x No SSSV Objective: Pull the existing 4-1/2” L80 tubing out of the well and replace with 4-1/2” 13Cr tubing. Production packer and TBG tail will be set above Top Sag to allow access to Z4B Rich gas. Achieve a passing MIT-IA & MIT-T. Pre RWO DHD – Cycle LDS PPPOT-T to 5000 psi (DONE 05/18/24) PPPOT-IC to 3500 psi (DONE 05/18/24) RWO Procedure 07-12 PTD: 178-079 SL - Pull 3-1/2” ER CAT test tool and 3-1/2” ER PKR Run Caliper to 11400’. Just need data to TBG tail. rush data to Jerry.Lau@hilcorp.com Load TxIA, Set 3-1/2” EVO-Trieve w/ junk basket @ ~11,205’, CMIT-TxIA to 3000 psi Set DGLVs in all stations. All subsequent work pending sundry approval EL – Cut tubing using welltech mech cutter @ ~11,108’ MD (2’ below top of 1st full joint above PKR). Contingent TBG punch @ ~11,063’ MD in case we cannot establish circulation through the cut Circ out well to 8.5ppg 1% KCl w/ diesel FP on T & IA DHD – Bleed WHP’s to 0 Valve Shop – Set and test TWC. Gray 5-1/8” BPV profile. Nipple Down Tree and tubing head adapter. Inspect lift threads. Per TBG Tally, Top of HGR Connection is 5-7/8” MOD RH ACME NU 13-5/8” BOPE Stack configured top down, Annular, 2-7/8” x 5” VBRs, Blinds and flow cross. RWO 1. NU BOP house and spot mud boat. MIRU ASR #1 Rig. 2. Test BOPE to 250psi Low/3,000psi High, annular to 250psi Low/2,500psi High (hold each ram/valve and test for 5-min). Record accumulator pre-charge pressures and chart tests. A. Perform Test per ASR #1 BOP test procedure. B. Notify AOGCC 24 hrs in advance of BOP test. C. Confirm test pressures per the Sundry Conditions of approval. D. Test the 2-7/8” x 5” VBR’s with 4-1/2” test joint. Test the Annular preventer with 4-1/2” test joint. We will not proactively test with a workstring test joint. If needed, we will test accordingly. E. Submit to AOGCC completed 10-424 form within 5 days of BOPE test. 3. Pull TWC. 4. RU Control line spooler. There are dual control lines to the safety valve landing nipple. It was reported to have 30 stainless steel bands. 5. MU landing joint or spear, BOLDS and pull hanger to the floor. PU weights are expected to be ~125K. The lift threads are expected to be 5-7/8” MOD RH ACME. Circulate bottoms up. 6. Pull 4-1/2” tubing. The tubing will not be salvaged. While rigging down control line spooler circulate at max rate. Note if any bands or line are missing. a. Pull tubing until minimum storm packer hanging weight remains b. Set storm packer and test to 3500 psi c. ND BOP stack d. Add TC Adapter to TBG Spool e. NU BOP stack, test breaks to 3500 psi f. Pull storm packer g. Continue pulling and laying down tubing 7. RU slickline. Run Scoop/Reentry guide onto TBG stub. RD Slickline. 8. Run 4 ½” 13Cr tubing completion as detailed on the proposed schematic. 9. Land tubing hanger and reverse in corrosion inhibited 1% KCl (or seawater) into the IA. 10. Drop ball and rod and set packer with 3,500-psi pump pressure. If any risk of pressure below TWC, then lubricate. - mgr RWO Procedure 07-12 PTD: 178-079 11. Perform MIT-T to 3,000 psi and MIT-IA to 3,000 psi for 30 charted minutes. 12. Shear valve in upper GLM. 13. Set TWC 14. Rig down ASR #1 Post RWO - Valve Shop 1. ND BOPE 2. NU tree and tubing head adapter. 3. Test both tree and tubing hanger void to 500psi low/5,000psi high. 4. Pull TWC and freeze protect to ~2,000ft with diesel. Post RWO – Slickline 1. Pull Ball and rod and RHC profile 2. Pull Junk basket and EVO-Trieve from ~11,205’ MD. 3. Set GLV’s per GL Engineer. 4. RDMO Attachments: 1. Current Wellbore Schematic 2. Proposed Wellbore Schematic 3. BOP Drawing 4. Current TBG Tally 5. Sundry Revision Change Form. RWO Procedure 07-12 PTD: 178-079 Current Wellbore Schematic RWO Procedure 07-12 PTD: 178-079 Proposed Wellbore Schematic RWO Procedure 07-12 PTD: 178-079 RWO BOP Stack RWO Procedure 07-12 PTD: 178-079 Current TBG Tally RWO Procedure 07-12 PTD: 178-079 RWO Procedure 07-12 PTD: 178-079 Changes to Approved Sundry Procedure Date: Subject: Sundry #: Any modifications to an approved sundry will be documented and approved below. Changes to an approved sundry will be communicated to the AOGCC by the “first call” engineer. AOGCC written approval of the change is required before implementing the change. 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Development Exploratory Service 5 Permit to Drill Number:178-079 6.50-029-20337-00-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 11887 11186 8909 11075 , 11330 8852 , 8984 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 38 - 118 38 - 118 1530 520 Surface 2626 13-3/8" 36 - 2662 36 - 2662 4930 2670 Production 11853 9-5/8" 34 - 11887 34 - 9283 6870 4760 Tubing 11129 5-1/2" x 4-1/2" 32 - 11176 32 - 8904 7740 / 8430 6280 / 7500 Perforation Depth: Measured depth: 11295 - 11454 feet True vertical depth:8966 -9049 feet Tubing (size, grade, measured and true vertical depth)3-1/2" 9.2# L-80 11176 - 11347 8904 - 8993 10216 8407Packers and SSSV (type, measured and true vertical depth) 5-1/2"Baker SAB 12. Stimulation or cement squeeze summary: Intervals treated (measured): Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 2100742360 11190 0 3381 275 235 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Ryan Thompson Ryan.Thompson@hilcorp.com Authorized Name:Bo York Authorized Title: Authorized Signature with Date:Contact Phone:(907) 564 - 5280 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured9283 Sundry Number or N/A if C.O. Exempt: 3-1/2" Baker HB/DB 11075 / 11330 8852 / 8984 Junk Packer Printed and Electronic Fracture Stimulation Data 5 Operations shutdown Change Approved Program Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well5 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 028309 PBU 07-12 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations none none By Samantha Carlisle at 9:49 am, Oct 20, 2020 Digitally signed by Bo York DN: cn=Bo York, c=US, o=HIlcorp Alaska LLC, ou=Alaska North Slope, email=byork@hilcorp.com Date: 2020.10.19 11:02:27 -08'00' Bo York DSR-10/20/2020 SFD 10/20/2020RBDMS 11/13/2020 MGR22OCT2020 ACTIVITYDATE SUMMARY 1/21/2020 ***WELL S/I ON ARRIVAL***(cut patch) RAN 3.70" CENT & 3.5" LIB, SD AT 3' SLM. RAN SBLR AND RECOVERED 1 CUP OF ICE. PUMPED 2 BBLS TOTAL OF METH AND BRUSHED DOWN TO 2500' SLM WITH 3.80" G-RING AND 4 1/2" BL-BRUSH. ***CONT ON 1-22-20 WSR*** 1/22/2020 ***CONT FROM 1-21-20 WSR***(cut patch) RAN 3.50" LIB TO WFD PATCH @ 11,136' MD.(impression of fishneck) RAN SBHPS PER PROGRAM.(good data) MADE 2 ATTEMPTS TO PLANT NORTHERN SOLUTIONS RS ANCHOR W/ SPACER PIPE IN PATCH.(unable to sting in) RAN 3.70" BARBELL & 3.50" LIB TO WFD PATCH @ 11,136' MD.(impression of possible damaged fishneck) DRIFTED THROUGH PATCH W/ 5' x 1.69" DRIFT TO 11,235' SLM.(no issues) ***CONT ON 1-23-20 WSR*** 1/23/2020 ***CONT FROM 1-22-20 WSR***(cut patch) RAN RCH CALIPER ACROSS PATCH @ 11,136' -11,186' MD.(good data) BRUSHED TOP OF PATCH WITH 3.80" G-RING & 3-1/2" BL-BRUSH. MADE 2 ATTEMPTS TO PLANT NORTHERN SOLUTIONS RS ANCHOR W/ SPACER PIPE IN PATCH. PLANT NORTHERN SOLUTIONS RS ANCHOR W/ SPACER PIPE IN PATCH @ 11,136' MD. RAN RCH CALIPER ACROSS PATCH (DTR BOX STOPPED WORKING) ***CONT ON 1-24-20 WSR*** 1/24/2020 ***CONT FROM 1-23-20 WSR***(cut patch) RAN RCH CALIPER ACROSS PATCH AT 11,136' MD. APPEARS SPACER IS SET. TOP OF ANCHOR ASSY.@ 11,123 ***WELL LEFT S/I ON DEPARTURE, DSO NOTIFIED OF STATUS*** 9/6/2020 ...Well shut in on arrival... (HES eline - Cut Patch) DRIFT WITH 2.125" CCL TO 11,155'. CUT WFT 4-1/2" ER PACKER MANDREL WITH BAKER MPC AT 11,137'. ***Job Complete. Well shut in on departure*** 9/8/2020 T/I/O = 1330/1510/80. Temp = SI. IA FL (OE request). ALP = 1630 psi, SI @ CV. IA FL @ 4752' (sta # 2 DMY). SV, WV, SSV = C. MV = O. IA, OA = OTG. 21:30 9/12/2020 ***WELL S/I ON ARRIVAL*** PULL RS ANCHOR ASSEMBLY @ 11,124' SLM PULLED UPPER PORTION OF PACKER @ 11,142' SLM ***CONT TO 9/13/20 WSR*** 9/13/2020 ***CONT. FROM 9/12/20 WSR*** PULL AND RESET SPEAR IN PATCH @ 11,142' SLM ***CONT. TO 9/14/20 WSR*** 9/14/2020 ***CONT. FROM 9/13/20 WSR*** (patch tubing/liner) ATTEMPTS TO FISH PATCH @ 11,142' SLM ***CONT. TO 9/15/20 WSR*** 9/15/2020 ***CONT. FROM 9/14/20 WSR*** (patch tubing/liner) ATTEMPT TO FISH PATCH @ 11,142' SLM ***CONT. TO 9/16/20 WSR*** Daily Report of Well Operations PBU 07-12 Daily Report of Well Operations PBU 07-12 9/16/2020 ***CONT. FROM 9/15/20 WSR***(patch tubing/liner) PULLED 4.5" ER PACKER @ 11,142' SLM RAN 3.5" WIRE GRAB & RECOVERED HALF OF AN ELEMENT @ 11,159' SLM ***CONT. TO 9/17/20 WSR*** 9/17/2020 ***CONT. FROM 9/16/20 WSR***(patch tubing/liner) ATTEMPTS MADE TO RECOVER ER PACKER ELEMENT ***CONT. TO 9/18/20 WSR*** 9/18/2020 ***CONT. FROM 9/17/20 WSR***(patch tubing/liner) PULLED ALL SPACER PIPE FOR PATCH @ 11,152' SLM ***CONT. TO 9/19/20 WSR*** 9/19/2020 T/I/O = 1200/1500/60. Temp = SI. IA & T FL (SL req). ALP = 1650 psi, AL SI @ casing valve. T FL @ 3050'. IA FL @ 4752' (sta #2, DMY). Slick line in control of well upon departure. 08:00 9/19/2020 ***CONT. FROM 9/18/20 WSR*** (patch tubing/liner) RECOVERED ELEMENT SPRING AND PIECES OF ELEMENT FROM ER PACKER ***CONT. TO 9/19/20 WSR*** 9/20/2020 ***CONT. FROM 9/19/20 WSR*** (patch tubing/liner) RECOVERED SMALL PIECE OF ELEMENT IN 3.5" ER PACKER SET WHIDDON C-SUB @ 11,176' MD PULL STA #3 RK-DGLV @ 6717' MD ***CONT. TO 9/21/20 WSR*** 9/21/2020 T/I/O= 1060/1450/60. Assist Slickline, CMIT TxIA PASSED to 1996 psi (PATCH TUBING / LINER) Pumped 430 bbls of crude into the IA. Pumped 260 bbls of crude into the TBG.S/L set last DMV. Pumped 260 bbls of crude into the TBG.S/L set plug. CMIT TxIA PASSED. T/IA lost 1/0 psi during the 1st 15 minutes and 0/2 psi during the 2nd 15 minutes. Pumped 11.23 bbls of 80* F crude to achieve test pressure. Bled back 9.8 bbls to final T/I/O= 260/260/80. 9/21/2020 ***CONT. FROM 9/20/20 WSR*** (patch tubing/liner) SET RK-DGLV IN STA #3 @ 6,717' MD SET 3.5" ER PACKER TEST TOOL @ 11,190' SLM ***CONT. TO 9/22/20 WSR*** 9/22/2020 ***CONT. FROM 9/21/20 WSR*** (patch tubing/liner) PULL PACKER TEST TOOL @ 11,190' SLM ***CONT. TO 9/23/20 WSR*** 9/22/2020 T/I/O= 230/250/50. LRS Unit 72 Assist Slickline (PATCH TUBING / LINER). CMIT- TxIA at 1825 psi PASSED at 1903 psi (2010 psi max applied pressure) T/IA lost 55/26 psi during the 1st 15 minutes. T/IA lost 20/15 psi during the second 15 minutes. T/IA lost 75/41 psi during the 30 minute test. Pumped 9.2 bblsof 53* F crude to achieve test pressure. Bled back 9 bbls to Final T/I/O= 525/525/70. 9/23/2020 T/I/O = 80/80/70. Temp = SI. T & IA FL (patch). T & IA FLs @ near surface (~40'). SV, WV, SSV = C. MV = O. IA, OA = OTG. 03:30 9/23/2020 T/I/O= 575/580/70. LRS Unit 72 Assist Slickline (PATCH TUBING / LINER) Pressure test second element of the patch to 1825 psi. PASSED at 1886 psi (2010 psi max applied pressure). T/IA lost 20/24 psi during the 1st 15 minutes. T/IA lost 14/17 psi during the 2nd 15 minutes. Pumped 7.08 bbls to achieve test pressure. Bled back 9 bbls to Final T/I/O= 200/197/71. Daily Report of Well Operations PBU 07-12 9/23/2020 ***CONT. FROM 9/22/20 WSR*** (patch tubing/liner) SET BAKER DEPLOYMENT SLEEVE / SPACER PIPE IN LOWER WFT ER PACKER @ 11,192' SLM. SET DEP SLV TEST PLUG @ 11,151' SLM. LRS PERFORMED PASSING CMIT TO VERIFY ER PKR & SPACER PIPE SEALS ARE HOLDING. PULLED TEST PLUG. ***CONTINUE JOB ON 9/24/20 WSR*** 9/24/2020 ***CONT. FROM 9/23/20 WSR*** (patch tubing/liner) HES 759 WEATHER STANDBY ***CONT. TO 9/25/20 WSR*** 9/25/2020 ***CONT. FROM 9/24/20 WSR*** (Job Scope- c/o TBG patch/test and if passes c/o GLV's. SET PATCH, UPPER 45 KB STRADDLE PACKER @ 11,164' SLM with 2.313" XX Plug inside. Preformed MIT-IA, (PASS) SEE LOG Lay down for night. ***CONT. TO 9/26/20 WSR***a 9/26/2020 ***CONT. FROM 9/25/20 WSR***(patch tubing/liner) SET WHIDDON C-SUB @ 11,123' SLM PULL DGLV FROM STA # 5 @ 9,088' MD PULL DGLV FROM STA # 3 @ 6717' MD PULL DGLV FROM STA # 1 @ 2783' MD SET STA # 1 TG-LGLV @ 2783' MD ***CONT. TO 9/27/20 WSR*** 9/27/2020 ***CONT. FROM 9/26/20 WSR***(patch tubing/liner) SET STA# 3 TG-LGLV @ 6,717' MD SET STA# 5 TG-OGLV @ 9,088' MD PULL WHIDDON C-SUB @ 11,123' SLM PULL XX PLUG FROM PATCH @ 11,155' SLM ***WELL S/I ON DEPARTURE, DSO NOTIFIED*** STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COM ON REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed Abandon ❑ Plug Perforations ❑ Fracture Stimulate 0 Pull Tubing 0 Operations shutdown 0 Suspend 0 Perforate 0 Other Stimulate 0 Alter Casing 0 Change Approved Program ❑ Plug for Redrill ❑ Perforate New Pool 0 Repair Well Q Re-enter Susp Well 0 Other:Set Patch"hi b►yi y Q 2. Operator Name: BP Exploration(Alaska),Inc 4. Well Class Before Work 5. Permit to Drill Number: 178-079 J/ 3. Address: P.O.Box 196612 Anchorage, Development Q Exploratory El AK 99519-6612 Stratigraphic 0 Service ❑ 6. API Number: 50-029-20337-00-00 7. Property Designation(Lease Number): ADL 0028309 8. Well Name and Number: PBU 07-12 9. Logs(List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY,PRUDHOE OIL 11.Present Well Condition Summary: R " Total Depth: measured 11887 feet Plugs measured feet true vertical 9283 feet Junkfeet N�- i I 2[Y3 j measured Effective Depth: measured 11186 feet Packer measured See Attachment feet true vertical 8909 feet Packer true vertical See Attachment feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20"94#H-40 38-118 38-118 1530 520 Surface 2626 13-3/8"72#N-80 36-2662 36-2662 4930 2670 Intermediate Production 11859 9-5/8"47#N-80 34-11893 34-9286 6870 4760 Liner Perforation Depth: Measured depth: See Attachment feet True vertical depth: See Attachment feet mN� 1 .AN 20 6 Tubing(size,grade,measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV(type,measured and See Attachment See Attachment See Attachment true vertical depth) 12.Stimulation or cement squeeze summary: Intervals treated(measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 260 1789 641 1700 223 Subsequent to operation: 0 0 1 1240 225 14.Attachments:(required per 20 AAC 25.070.25.071,&25.283) 15.Well Class after work: Daily Report of Well Operations Q Exploratory ❑ Development Q Service 0 Stratigraphic 0 Copies of Logs and Surveys Run 0 16.Well Status after work: Oil Q Gas 0 WDSPL ❑ Printed and Electronic Fracture Stimulation Data 0 GSTOR ❑ WINJ 0 WAG ❑ GINJ ❑ SUSP ❑ SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O.Exempt: N/A Contact Catron,Garry R(Wipro) Email Garry.Catron@bp.com Printed Name Catron,Garry R(Wipro) Title PDC Principal Engineer Signature 4- / Phone +1 907 564 4424 Date 11/17/15 Form 10-404 Revised 5/2015 -1/-71.- /2-/- `i$ RBDMSSINnv 18 2015 At 1 /L/`f --- Submit Original Only • • • Packers and SSV's Attachment PBU 07-12 SW Name Type MD TVD Depscription 07-12 TBG PACKER 11074.83 8851.83 3-1/2" BOT HB Hydraulic Packer 07-12 TBG PACKER 11330.27 8984.11 3-1/2" Baker DB Packer • u) N f6 m CO N N N V N M Lf) L1) f— M M N- M Ln 4 CO N N- M OO C1) r CO V C) Ln co O M r (fl M 00 M Ln 00 00 O CO O 4 4 Lfl O to O7 LL Lf) O) m N LO CO CO CO N- N- N- C) O .-- N N NO ' a a) O) 6) O) C) O C1) O) O) O O O O O O O O p CO M OO OO M OO M OO OO O) CA ) O O O) ) F Q O M CV N N N V N M N Lf) M M I- M co 6 CD Lf) N- M CO 6) r O) Ln Ln CO O r O O. O V O Ln 00 OO O6 M 4 r U) O Lf) O ui a a) r M O O O O N- ti CD CA O r N N N W a O 0 O) O O O) O CA C)) CA O O O O O O O p co CO co CO co oO CO CO CO CO O) CA CD O O) O) 0 2 w a O O Z w w p o H I- 5 a 5 " ° 0 CO 00 ‹ Y Y g t r Ln O r Ln LLU CO O o 0 000 CO CO N- V - - J U U W W W a N N- CA O O O r LO N- C7) 0 0 Ln J J J d d V1 Z Gr O N N N M MM M CO CO CO CO V V < < < w U J O • p - - - - - - rrrrr r . . . . . U_ U_ U_ J W W . . . . . . . . . Z ZO J J J ° J r = iO O a H a 2 U U U W Z 0 Z C.) C4 X22 0Q)) u~) ¢icJnuQi p Q N a OE°- s o CO LO Ln o r LO Ln C) 0 0 0 000 CO CO N a 0 M 00 O) O O O r LO CO Cfl O O r V 4 O Ana) N N N N CO CO CO CO CO CO CO co 4 V . . . . . r r r . . . . . . . . . 03 a N L N O 2 CC wJ _ O- a J 2 O u) (0 cn cn a) a V O 0 c 2 0 0 0 LL LL. LL. LL_ U N CCLL. W CtW' L- 73HHHn- d0QHOWd WW WW Wd a 0 a) m a I- O M 00 O O O O C+') C'�) O O O o 0 0 0 O o 00 M O O r r r 0 0 0 0 0 0 0 0 0 0 0 0 0 O o 0 0 0 0 0 0 0 0 0 0 W Z • O) O O N O LI O �- r N N N N N N N N N N N N N N N ZO � 1 < 11 W A -6 N 0) M N N N N N N N N N O w O JJ „jaw r r r r r r r O O O O Z a J 0 JJ W W a W O. 1� Ln LO Ln Lc) Ln m Lc) LO Lf) Ln tf) _J Q' a O m O p z W J -1 3 Q 0 W W < < a V) LL LL :/) LL. u) a d' C) E N N N N N N N N N N N N N N N N N i i LL a V) 0 00U.10- CD C) CD C) CD CD CD CD CD CD CD C)_CD CD CD CD OWa0000000000000000 0 < < m m a a u) u) a cc • • a O O o 0 N N- CO CO 0 co O r N L() O- L N V CO r- 4/% 00000 - No0000 0 i CO CO N- M • L() 0) 00 N V' m V CO I– co W N CO (0 O O) CO CO CO 0) O) O O N CO O) 6) N O) CO CO CO H 0 CO CO O d- N CO 0) CO CO Cr) CO CO Nr CO 00 CO 00 41 C M cY (O COCD CO CO Ln CO LY N - V - II I I II CO a • N �- (0 Q ooOVNaoL° CO CO Cr) CO d- r r • CO 0" C) oo 00- 00 CO CO NN N N- N O) • fn O - N U O U.' 00 N N ' M r O co X co O) M ON () M (7) O N ' J Z CD O O N• U U a D < D 0 0 0 = O O i O Z Z Z O Z O CO CO CO H UCA0- HHH0- 111=E= FMC • 1 likETY)V&LLi-E\D= GRAY NOTES: 1 ACTUATOR= BAKER C 07-12 OKB.E EV= 64' BF.ELEV= ),./ KOP- 3700' \ ) 42' _I--15-1/2"X 4-1/2"XO,ID=3.958" Max Angle= 61 @ 10600 5-1/2"TBG,17#,L-80, H 42' 2204' —4-1/2"CA MCO BA L-0 SSSV NP,D=3.813" Datum MD= 11099' .0232 bpf,D=4.892" 10 Datum ND- 8800'SS GAS UFT MANDRELS ST NO ND DEV TY PE VLV LATCH PORT DATE 1 2783 2783 0 CA DOME TG 16 10/19/15 13-3/8"CSG,72#,N-80,D=12.347" — 2706' 2 4752 4668 35 CA DMI' TG 0 08/27/08 3 6717 5973 51 MC DOME TG 16 10/19/15 4 8132 6907 45 MC DMY TG 0 07/06/88 Minimum ID = 1.75" @ 11136' -11186' 5 9088 7610 42 MC SO TG 24 10/19/15 6 9828 8144 45 MC DMY TG 0 07/06/88 4-112"X3-1/2" WFD PATCH 7 10654 8642 60 MC DMY TG 0 07/06/88 8 10932 8780 60 MC DM' TG 0 06/10/15 4-1/2'X 3-1/2-WFD PATCH,D=1.75" — 11136'-11186' 9 11043 8836 60 MC DMY TGE 0 07/06/88 3 TRIP PATCH-TOP SECTION SHEAR RLS S.O.=4800#'S-LOVVER SECTION11154' 4-1/2'MR PBR ASSY,3.958" SI-EAR RLS RS.=9250#'S(10/18/15) 4-1/2"TBG-PC,12.6#,L-80,.0152 bpf,13=3.958" -{ 11154' �� / 11168' -19-5/8"X 4-1/2"BOT I-U PKR,D=3.958" / 11176' —I4-1/2"X 3-112"X0,ID=2.992" PERFORATION SUMMARY C ( 11176' -11275' —3-1/2"BLAST JOMTS(99'LONG) REF LOG:BHCS ON 04/13/79 ANGLE AT TOP PERF:59'@ 11295' I Note:Refer to Production DB for historical perf data SIZE SFf INTERVAL Opn/Sgz SHOT SQZ11232' HCMT DONUT,1)=2.72' 3-1/8" 4 11206-11224 S 05/23/87 AA, 4 4 ! 1�1 11 � 41 31/8" 4 11236 11271 S 05/23/87 111/• o t, RRODUCTIONMAN1RELS 3-1/8" 4 11285-11316 S 05/23/87 +1/1� 1.1111• ST MD ND DEV TYPE VLV LATCH FORT DATE 2" 6 11295-11305 0 07/12/09 07/12/09 11+11'4 11.11 10 11275 8955 59 CA 3i0171' NA 0 2/8/2000 2-1/8' 6 11300-11305 0 06/08/10 06/08/10 1+10 64+ 2-1/2" 6 11305- 11315 0 05/19/03 05/19/03 11111'a 3-1/8' 4 11349-11370 S 05/23/87 11111 V V VE 2" 4 11350-11370 0 05/12/00 05/12/00 1�+�4 3-1/8" 4 11389-11408 0 06/21/87 06/21/87 M: 0 ' 11324' —I9-5/8"X 3-1/2'BOT DB PKR,D=4.750' 2" 4 11390-11447 0 05/12/00 05/12/00 vt1, ►1*1V 2-5/8" 1 11416-11426 0 09/15/88 09/15/88 11111• 1111111 11111; ►/0.0 3 3-1/8" 4 11416- 11454 0 0621/87 06/21/87 111 it t t 1 11343' —3-1/2"OTIS XN NP,D=2.75" 2-5/8" 4 11426-11454 0 09/15/88 09/15/88 1/11$. 1111111 1.1•/• .(►1.141 11111 i �•1.1:� 11346' --I3-1/2"BOT SHEAROUT SUB,2.992" I.3-1/2'TBG-PC,9.3#,L-80,.0087 bpf,D=2.992' H 11347' .ii1i 4.4k 11347' -13-112"TBG TAL,D=2.992" I11346' HELM°TT LOGGED 09/15/88 I FBTD H 11846' •1441+.**** 111111111111111111111 9-5/8"CSG,47#,N-80,D=8.681' H 11887' i1.1.1.1�1A1A1A1.1A1.1 DATE REV BY CONRANTS DATE REV BY CON/ANTS PRUDHOE BAY UNIT 04/23/79 ORIGINAL COMPLETION 11/10/15 JLS/JMD GLV GO(10/19/15) VVBL: 07-12 07106/88 LAST WORKOV ER FERMI No:'1760790 07/26/09 KJB/PJC PERFORATIONS(07/12/09) AR No: 50-029-20337-00 06/13/10 MV/SV REFFRF(06/07/10) SEC 33,T11 N,R14E,746'FNL 8 265'FEL 06/30/15 MGS/JMI) GLV C/O 8 SET VVRP(6/9-10/15) 11/10/15 TBD/AD SET PATCH/PLLLED VVRP II BP Exploration(Alaska) k -o 76% \g5. 011 • • x,•41 WELL LOGsECEIVED TRANSMITTAL AUG 2 Q ZiKi DATA LOGGED PROACTIVE DIAigNosTic SERVICES, INC. 2{/201,5 K BENDER To: AOGCC Makana Bender 333 W. 7th Ave Suite 100 Anchorage, Alaska 99501 ' ANNED EP 0 3 2015. (907) 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and /or Tubing Inspection(Caliper/ MTT) The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of: BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Analisa Steger LR2— 1 900 Benson Blvd. Anchorage, AK 99508 gancpdcObp.com and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1) LeakPointTM Survey 20-Jul-15 07-12 BL/ CD 50-029-20337-00 2) Leak Detection - STP 21-Jul-15 Y-21A BL/CD 50-029-21574-01 MAtga4uk.,./ 7)Signed : � Date : Print Name: PROACTIVE DIAGNOSTIC SERVICES, INC., 130 W.INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (907)245-8951 FAX: (907)245-8952 E-MAIL: PDSANCHORAGEOMEMORYLOG.COM WEBSITE:WWW.MEMORYLOG.COM D\Achives\A4asterTemplateFiles\Templates\Distribution\TransmittalSheets\BP_Transmit.docx STATE OF ALASKA ALAS~IL AND GAS CONSERVATION COMMIS REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ^ Repair Well ^ Plug Perforations ^ Stimulate ^ Other ^ Performed: Alter Casing ^ Pull Tubing^ Perforate New Pool ^ Waiver^ Time Extension ^ Change Approved Program ^ Operat. Shutdown ^ Perforate Q Re-enter Suspended Well ^ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: .Permit to Drill Number: Name:. Development Q Exploratory ^ 178-0790 3. Address: P.O. Box 196612 Stratigraphic^ Service ^ .API Number: Anchorage, AK 99519-6612 50-029-20337-00-00 8. Property Designation (Lease Number) : ~ 9. Well Name and Number: ADLO-028309 ~ PBU 07-12 10. Field/Pool(s): PRUDH OE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 11887 feet Plugs (measured) 11459' TAG TD feet true vertical 9283.03 feet Junk (measured) None feet Effective Depth measured 11459 feet Packer (measured) 11168 11324 true vertical 9052 feet (true vertical) 8900 8981 Casing Length Size MD TVD Burst Collapse Structural Conductor 108 20" 94# H-40 SURFACE - 142 SURFACE - 142 1530 520 Surtace 2672 13-3/8" 72# N-80 SURFACE - 2706 SURFACE - 2706 5380 2670 Intermediate Production 11853 9-5/8" 47# N-80 SURFACE - 11887 SURFACE - 9047 6870 4760 Liner Liner Pertoration depth: Measured depth: SEE ATTACHED - _ _ _ _ True Vertical depth: _ _ _ _ _ Tubing: (size, grade, measured and true vertical depth) 5-1/2" 17# L-80 SURFACE - 42 SURFACE - 42 4-1/2" 12.6# L-80 42 - 11154 42 - 8892 3-1/2" 9.3# L-80 11176 - 11347 8904 - 8993 Packers and SSSV (type, measured and true vertical depth) 9-5/8"X4-1/2" BOT HB PKR 11168 8900 9-5/8"X4-1/2" BOT DB PKR 11324 8981 12. Stimulation or cement squeeze summary: Intervals treated (measured): ~~~p Treatment descriptions including volumes used and final pressure: ~185~(8 ~1~ ~ ~~ CAS, fy~rp(nISSIOfi 13. Representative Daily Average Production or Injection Da Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: SI Subsequent to operation: 520 1795 558 219 14. Attachments: .Well Class after work: Copies of Logs and Surveys Run Exploratory^ Development Q Service ^ Daily Report of Well Operations X .Well Status after work: Oil ~ Gas WDSPL GSTOR ^ WAG ^ GINJ ^ WINJ ^ SPLUG ^ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: NA Contact Gary Preble Printed Name Gary Preb Title Data Management Engineer Signature Phone 564-4944 Date 6/25/2010 Form 1 ~ RBDMS JUN 2..810 ~- ?- 7-~a , ~/~~G 07-12 178-079 PERF ATTACHMENT u • Sw Name Operation Date Perf Operation Code Meas Depth To Meas De th Base Tvd De th Top Tvd Depth Base 07-12 8/14/79 PER 11,206. 11,224. 8,919.3 8,928.66 07-12 8/14/79 PER 11,236. 11,271. 8,934.92 8,953.22 07-12 8/14/79 PER 11,285. 11,316. 8,960.52 8,976.65 07-12 10/24/80 APF 11,349. 11,370. 8,993.92 9,004.97 07-12 10/24/80 APF 11,389. 11,408. 9,015. 9,025.07 07-12 6/26/84 APF 11,416. 11,446. 9,029.3 9,045.13 07-12 5/22/87 SQZ 11,206. 11,446. 8,919.3 9,045.13 07-12 6/21/87 APF 11,446. 11,454. 9,045.13 9,049.34 07-12 6/21/87 RPF 11,349. 11,370. 8,993.92 9,004.97 07-12 6/21/87 RPF 11,389. 11,408. 9,015. 9,025.07 07-12 6/21/87 RPF 11,416. 11,446. 9,029.3 9,045.13 07-12 8/8/87 SQZ 11,206. 11,446. 8,919.3 9,045.13 07-12 9/1/87 RPF 11,389. 11,408. 9,015. 9,025.07 07-12 9/1/87 RPF 11,416. 11,454. 9,029.3 9,049.34 07-12 9/1/87 RPF 11,349. 11,370. 8,993.92 9,004.97 07-12 7/2/88 SQZ 11,349. 11,454. 8,993.92 9,049.34 07-12 7/4/88 RPF 11,301. 11,316. 8,968.84 8,976.65 07-12 7/6/88 STC 11,301. 11,316. 8,968.84 8,976.65 07-12 7/6/88 STC 11,206. 11,224. 8,919.3 8,928.66 07-12 7/6/88 STC 11,236. 11,271. 8,934.92 8,953.22 07-12 7/6/88 STC 11,285. 11,301. 8,960.52 8,968.84 07-12 9/15/88 RPF 11,446. 11,454. 9,045.13 9,049.34 07-12 9/15/88 RPF 11,416. 11,446. 9,029.3 9,045.13 07-12 9/15/88 RPF 11,389. 11,400. 9,015. 9,020.83 07-12 9/15/88 RPF 11,400. 11,408. 9,020.83 9,025.07 07-12 5/12/00 PER 11,390. 11,447. 9,015.53 9,045.65 07-12 5/12/00 PER 11,350. 11,370. 8,994.45 9,004.97 07-12 5/19/03 RPF 11,305. 11,315. 8,970.92 8,976.13 07-12 7/12/09 APF 11,295. 11,305. 8,965.72 8,970.92 07-12 6R/10 APF 11,300. 11,305. 8,968.32 8,970.92 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG P ULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE e. - i 07-12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE SUMMARY 6/7/2010 `**WELL SHUT-IN ON ARRIVAL"** (ELINE-REPERF) (WLV STEM TEST WITNESSED BY K. BRACKETT BEFORE JOB START. INITIAL T/I/O = 2100/1500/0 PERFORATE INTERVAL 11300 - 11305 FT. 2-1/8" ENERJET III HMX. CONFIRMED ALL SHOTS FIRED AT SURFACE. FINAL T/I/O = 1950/1500/0. ***JOB COMPLETE*'"* FLUIDS PUMPED BBLS 2 diesel 2 Total TREE = F WELLHFAa = GRAY 'ACTUATOR = BAKER C KB. ELEV = 64' BF. ELEV = KOP = 3740' Max Angle = 61° @ 10600' Datum MD = Datum TV D = 11099' 8840' SS 5-1/2" TBG, 17#, L-80, .0232 bpf, ID = 4.892" 13-3/8" CSG, 72#, N-80, ID = 12.347" Minimum ID = 2.72 at7 11232' CMT DONUT ~ 4-112" TBG-IPC, 12.6#, L-80, .0152 bpf, ID = 3.958" ~ PERFORATION SUMMARY REF LOG: BRCS ON 04/13/79 ANGLE AT TOP PERF: 59° @ 11295' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-1/8" 4 11206 - 11224 S 05/23/87 3-1/8" 4 11236 - 11271 S 05/23/87 3-1/8" 4 11285 - 11316 S 05/23/$7 2" 6 11295 - 11305 O 07/12/09 2-1i8" 6 11300 - 11305 O 06/08/1 2-1/2" 6 11305 - 11315 O 05/19/03 3-1/8" 4 11349 - 11370 S 05!23/87 2" 4 11350 - 11370 O 05/12/00 3-1/8" 4 11389- 11408 O 06/21/87 2" 4 11390 - 11447 O 05/12!00 2-518" 1 11416 - 11426 O 09/15/88 3-1 /8" 4 11416 - 11454 O 06/21 /87 2-5/8" 4 11426 - 11454 O 09/15/88 ~ 3-1/2" TBG-IPC, 9.3#, L-80, .0087 bpf, ID = 2.992" ~ 9-5/8" CSG, 47#, N-80, ID = 8.681" S TES: JEWELRY@ 11176' IS LEAKINCx - ~ ~ STRAD Gi.M LEFT OPEN. 42' 5-112" X 4-1/2" XO, ID = 3.958" 2204' 4-112" CAMCO BAL-O SSSV NIP, ID = 3.813" GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 2783 2783 0 CAMCO DOME TG 16 08/27!08 2 4752 4668 35 CAMCO DMY TG 0 08!27108 3 6717 5973 51 MC DOME TG 16 08/27/08 4 8132 6907 45 MC DMY TG 0 07/06/88 5 9088 7610 42 MC SO TG 20 08/27/08 6 9828 8144 45 MC DMY TG 0 07/06/88 7 10654 8642 60 MC DMY TG 0 07/06/88 8 10932 8780 60 MC DMY TG 0 07/06/88 9 11043 8836 60 MC DMY TGE 0 07/06/88 4-1/2" BKRPBRASSY, 3.958" 9-5/8" X 4-1/2" BOT HB PKR, ID = 3.958" 11176' -{4-1/2" X 3-112" XO, ID = 2.992" 11176' -11275' 3-1/2" BLAST JOINTS (99' 11232' I-j CMT DONUT, ID = 2.72" PRODUCTION MANDRELS MD TVD DEV TYPE VLV LATCI 11275 8955T 59 CA DMY TGE ~ 9-518" X 3-1 /2" BOT DB PKR, ID = 4.750" ~ 11343' -~3-1/2" OTIS XN NIP, ID = 2.75" 11346' 3-1/2" BOT SHEAROUT SUB, 2.992" 11347' 3-1/2" TBG TAIL, ID = 2.992" 11346' ELMD TT LOGGED 09/15l88~ TE DATE REV BY COMMENTS DATE REV BY COMMENTS 04/23179 ORIGINAL COMPLETION 07/26/09 KJB/PJC PERFORATIONS (07/12/09) 07/06/88 LAST WORKOVER 06/13110 MV/SV REPERF (06!07/10) 05!19/03 BJM/TLH ADD PERF &CMT STRADDLE 09/11(03 CMO/TLP PERFANGLECORRECTION 08/22/08 JRA/SV GLV C/O (08/08&11!08) 09/01/08 JLJ/PJC GLV GO (08/27/0$) PRUDHOE BAY UNff WELL: 07-12 PERMfT No:1780790 API No: 50-029-20337-00 SEC 33, T11 N, R14E, 4458.33' FEL & 4718.15' FNL BP Exploration (Alaska) STATE OF ALASKA ALAS~IL AND GAS CONSERVATION COMMIS ON REPORT OF SUNDRY WELL OPERATIONS ~l~~~IVEG~~~9 ,1UL ~ ~ ~~09 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate~ ~r aS d~l~. 01'T3i1'liss Performed: Alter Casing ~ Pull Tubing~ Perforate New Pool ~ Waiver~ Time Extension~ ~~~~~~~~•~~~ Change Approved Program ~ Operat. Shutdown ~ ~ Perforate Q- Re-enter Suspended Well ~ 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number: Name: De~lopment ~ ` Exploratory ~ T~&o~so - 3. Address: P.O. Box 196612 Stl"dtlgP'c]phlC ~ Service ~~ 6. API Number: Anchorage, AK 99519-6612 50-029-20337-00-00- 7. KB Elevation (ft): 9. Well Name and Number: 64 KB PBU 07-12 - 8. Property Designation: 10. Field/Pool(s): ADLO-028309 _ PRUDHOE BAY Field/ PRUDHOE O!L Poo! 11. Present Well Condition Summary: Total Depth measured 11887 ~ feet Plugs (measured) TAGGED TD 11459' 4/21/2003 true vertical 9283.03 feet Junk (measured) None Effective Depth measured 11459 feet true vertical 9052 feet Casing Length Size MD ND Burst Collapse Conductor 108 20" 94# H-40 Surface - 142 Surface - 142 1530 520 Surface 2672 13-3/8" 72# N-80 Surface - 2706 SurFace - 2706 5380 2670 Production 11853 9-5/8"47# N-80 Surface - 11887 Surface - 9047 6870 4760 ~:, ~~ 20J~ ~" ''~~~~~ ~U~ ` . lc~ ~:J'3 Perforation depth: Measured depth: SEE ATTACHED - _ _ _ _ True Vertical depth: _ _ _ _ _ Tubing: (size, grade, and measured depth) 5-1/2" 17# L-80 SURFACE - 42' 4-1 /2" 12.6# L-80 42' - 11154' 3-1 /2" 9.3# L-80 11176' - 11347' Packers and SSSV (type and measured depth) 9-5/8"X4-1/2" BOT HB PKR 11168' 9-5/8"X3-1/2" BOT DB PKR 11342' 0 0 0 0 12. Stimulation or cement squeeze summary: Intervais treated (measured): Treatment descriptions including volumes used and final pressure: ~ 3• Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: SI Subsequent to operation: SI 14. Attachments: 15. Well Class after proposed work: Copies of Logs and Surveys Run Exploratory I~ De~elopment ~' - Service 1~ Daily Report of Well Operations X 16. Well Status after proposed work: Oil ~- Gas ~ WAG I~ GINJ ~ WINJ ~ WDSPL l~ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Gary Preble Printed Name Ga Preble Title Data Management Engineer t ; ,, Signature - ~~'~, ~,.......-~-~~~"" Phone 564-4944 Date 7/13/2009 i~h v ,a,i~. ~. f 2009 '~tr~~`,~- ~6~ ~ 07-12 178-079 PERF ATTACHMENT ~ ~ Sw Name O eration Date Perf O eration Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd De th Base 07-12 8/14/79 PER 11,206. 11,224. 8,919.3 8,928.66 07-12 8/14/79 PER 11,236. 11,271. 8,934.92 8,953.22 07-12 8/14/79 PER 11,285. 11,316. 8,960.52 8,976.65 07-12 10/24/80 APF 11,349. 11,370. 8,993.92 9,004.97 07-12 10/24/80 APF 11,389. 11,408. 9,015. 9,025.07 07-12 6/26/84 APF 11,416. 11,446. 9,029.3 9,045.13 07-12 5/22/87 SQZ 11,206. 11,446. 8,919.3 9,045.13 07-12 6/21/87 APF 11,446. 11,454. 9,045.13 9,049.34 07-12 6/21/87 RPF 11,349. 11,370. 8,993.92 9,004.97 07-12 6/21/87 RPF 11,389. 11,408. 9,015. 9,025.07 07-12 6/21/87 RPF 11,416. 11,446. 9,029.3 9,045.13 07-12 8/8/87 SQZ 11,206. 11,446. 8,919.3 9,045.13 07-12 9/1/87 RPF 11,389. 11,408. 9,015. 9,025.07 07-12 9/1/87 RPF 11,416. 11,454. 9,029.3 9,049.34 07-12 9/1/87 RPF 11,349. 11,370. 8,993.92 9,004.97 07-12 7/2/88 SQZ 11,349. 11,454. 8,993.92 9,049.34 07-12 7/4/88 RPF 11,301. 11,316. 8,968.84 8,976.65 07-12 7/6/88 STC 11,301. 11,316. 8,968.84 8,976.65 07-12 7/6/88 STC 11,206. 11,224. 8,919.3 8,928.66 07-12 7/6/88 STC 11,236. 11,271. 8,934.92 8,953.22 07-12 7/6/88 STC 11,285. 11,301. 8,960.52 8,968.84 07-12 9/15/88 RPF 11,446. 11,454. 9,045.13 9,049.34 07-12 9/15/88 RPF 11,416. 11,446. 9,029.3 9,045.13 07-12 9/15/88 RPF 11,389. 11,400. 9,015. 9,020.83 07-12 9/15/88 RPF 11,400. 11,408. 9,020.83 9,025.07 07-12 5/12/00 PER 11,350. 11,370. 8,994.45 9,004.97 07-12 5/12/00 PER 11,390. 11,447. 9,045.53 9,045.65 07-12 5/19/03 RPF 11,305. 11,315. 8,970.92 8,976.13 07-12 7/12/09 APF 11,295. 11,305. 8,965.72 8,970.92 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG P ULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE ~ ~ . ~ ' t ~ ~ O / ~lil DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY FLUIDS PUMPED BBLS 1 DIESEL 1 METH 2 Total STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: AbanonE] Suspend["1 Operation ShutdownE] Perforate[] VarianceE] Annuar DisposalE] After CasinQ['-] Repair Well[-'] PluQ Perforations[~ Stimulater-1 Time ExtensionD Other[-1 Change Approved ProgramE] Pull TubingE] Perforate New PoolE] Re-enter Suspended wellE] ADD PERFS 2. Operator 4. Current Well Class: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc. Developement [] Exploratoryr-1 178-079 3. Address: P.O. Box 196612 6. APl Number Anchorage, Ak 99519-6612 Stratigraphic E~ service [-~ 50-029-20337-00-00 7. KB Elevation (ft): 9. Well Name and Number: RKB 64.00 07-12 8. Property Designation: 10. Field/Pool(s): 028309 Prudhoe Bay Field / Prudhoe Bay Oil Pool 11. Present Well Condition Summary: Total Depth measured 11887 feet true vertical 9283 feet Plugs (measured) Tagged TD @ 11459' (04/21/2003). Effective Depth measured 11459 feet Junk (measured) true vertical 9052 feet Casing Length Size MD TVD Burst Collapse Conductor 108' 20" 142' 142' 40K 520 Surface 2672' 13-3/8" 2706' 2706' 80K 2670 Production 11853' 9-5/8" 11887' 9047' 80K 4760 Perforation depth: Measured depth: Open Perfs 11305'-11315', 11350'-11370', 11389'-11454'. Sqzd Perfs 11206'-11224', 11236'-11271 ', 11285'-11316',11349'-11370'. True vertical depth: Open Perfs 8971 '-8976', 8995'-9005', 9015'-9049'. Sqzd Perfs 8919'-8929', 8935'-8953', 8960'-8977', 8994'-9005'. Tubing: ( size, grade, and measured depth) 5-1/2" 17# L-80 TBG-PC @ 9452'. 5-1/2" x 4-1/2" XO @ 42'. 4-1/2" 12.6# L-80 TBG-IPC @ 11176'. 4-1/2"x3-1/2" XO @ 11176'. 3-1/2" 9.3# L-80 TBG-PC @ 11347'. Packers & SSSV (type & measured depth) 9-5/8" x4-1/2" BOT HB PKR @ 11168'. 9-5/8" x3-1/2" BOT DB PKR @ 11324'. 4-1/2" CAMCO BAL-O SSSV Nipple @ 2203'. 12. Stimulation or cement squeeze summary: Intervals treated (measured): JUN 1 6 2_003 Treatment descriptions including volumes used and final pressure: 13 Representative Daily Averaqe Production or Iniect~l~a OiI-Bbl Gas-Mcr Water-Bbl Casing Pressure' '"'~'" 'qt~J'6ing Pressure Prior to well operation: 401 7670 313 267 Subsequent to operation: 401 7568 313 260 14. Attachments: 15. Well Class after proposed work: ExploratoryE] Development~ serviceE] Copies of Logs and Surveys run __ 16. Well Status after proposed work: Oil~] GasE] WAGD-1 GINJF'1 WlNJE-~ WDSPLE] Daily Report of Well Operations _X 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. ISundry Number or N/A if C.C. Exempt: Contact DeWayne R. Schnorr Printed Name DeWayne R. Schnor,r . Title Techical Assistant Signature /.,,¢~~..~....~~-'" Phone 907/564-5174 Date May 22,2003 Form 10-404 Revised 2/2003 n D i kl l $(,;ANNED 'JUL 07-12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS 04/21/2003 PERFORATING: DRIFT/TAG 05/19/2003 PERFORATING: PERFORATING EVENT SUMMARY 04/21/03 DRIFT AND TAG W/2.5 DUMMY GUN ( 12' ), TEL, AND SAMPLE BAILER. LOCATED T.T. @ 11355' SLM -9 = 11346' ELM. TAGGED TD @ 11459' SLM -9 = 05/19/O3 PERFORATED INTERVAL 11305'-11315' USING 2.5" POWERSPIRAL ENERJET GUN, 5 SPF, 45 DEG PHASING, RANDOM ORIENTATION, HMX, APl FLUIDS PUMPED BBLS 3 PRESSURE TEST LUBRICATOR WITH DIESEL (2 TESTS). 3 TOTAL ADD PERFS 05/19/2OO3 THE FOLLOWING INTERVAL WAS PERFORATED WITH 2.5" HMX, POWERSPIRAL ENERJET GUN, 5 SPF, 45 DEGREE PHASING, RANDOM ORIENTATION. 11305'- 11315' Page 1 TREE = GRAY GEN 2 WELLHEAD = GRAY SAFETY NOTES: JEVVB. RY @ 11176' IS ................. 07 12LEA Kr4G. S'TRADDLE GLM L EFT OPEN. ACTUATOR = AXELSON BF. ELEV = KoP= 3700' ,,J, ,I II , 42' H 5'l/2"X4'l/2"XOI Max Angle = 61 @ 10600' 5-1/2" TBG, 17#, L-80, ~--~ 42' ~"'/ II I H Datum lVi3TM ............ -1";I-0-~; 0.00624 bpf, ID = 4.892" I 2203' 4-1/2" CAMCO BAL-O SSSV NIP, ID = 3.813" DatumTVD = 8800' SS IT°P°F4'I/2'' ~G H 42' y GAS UFT MANDRB_S ST IVE) TVD DEV TYPE VLV LATCH PORT DATE 1 2783 2783 0 CAMCO TG 113-3/8"CSG, 72#,N-80,~D=12.347"H 2706' ' · 2 4751 4667 35 CAMCO TG I 3 6717 5973 51 MC TG 4 8132 6907 45 MC TG IMinimumlD =".""'"''"""' 5 9087 7610 43 MC TG . 6 9827 81~ 45 Mc TG ICMTDONUTL 7 10~3 864261 MC TG 8 10931878O60 MC TG 9 110~388~ 60 MC TGE I PRODUCTION MANDRELS HI 4-112"'lBG-IPC, 12.6#, k-80, O.O152 bpf, lD= 3.958" J L 110111275189551 59 I CA Id I X ~ 11168' I-J 9-5/8"X4'I/2"BOTI-BPKRI I I H 4'1/2"x3'1/2"x°l ITOPOF3-1/2"TBG-,FC. 9.3#1--~ 11323' [__H I 11176' H 3-1/2" BLAST JONTS (147' LONG) I PERFORA TIO N SUM M~ RY REF LOG: BHGS ON 04/13/7@ ANGLE AT TOP PERF: 59° @ 11305' Note: Refer to Production DB for historical perf data SIZE SPF NTERVA L Opn/SqzI DATE 3-1/8" 4 11206- 11224 S 05/23/87 ; 3`1/8" 4 11236 - 11271 S 05/23/87 3-1/8" 4 11285- 11316 S 05/23/87 2-1/2" 6 11305-11315 O 05/19/03 3-1/8" 4 11349-11370 S 05/23/87 2" 4 11350-11370 0 05/12/00 II 11324' Id 9'SI8"X 3-112' BOT DB R<Ft' ID=4'750" I 3`1/8" 4 11389-11408 O 06/21187 2" 4 11390- 11447 O 05/12/00 2-5/8" 1 11416 - 11426 O 09/15/88 3`1/8" 4 11416-11454 0 06/21187~ ~ i 11343' Id 3-112"OTISXNNP'ID=2'75" I ' 113~' I-I 3-1/2" BOT sm~Rour sub 2-5/8" 4 11426- 11454 O 09/15/88 ,~00 I (,~"~v'vv i 11347'H TUBING TAIL I I 3'1/2" TBG'PC' 9'~' L'80' '00914 bPf' ID = 2'992" Id 11347' IJ [] I 11346' I~ ELMD TT LOGGED09/15/88 I I 9-5/8"CSG, 47#,N-80, D=8.681" I-~ 11087' ORIGII~L COMPLETION WELL: 07-12 07/06/88! LAST I/VORKOYER Pl~hil' No: 1780790 02/09/01' SIS-kG REVISION ARNo: 50-029-20337-00 09/12/01 RN/'r~ CORRECTIONS SEC 33, IIIN, R14E 4458.33 PEk 4718.15 FNL 05/19/03 BJM/'I'kH AD~ PERF& CMTS'IRADDLE BP ~xploration {Alas ka) PERFORA TIO N SUM MA RY REF LOG: BHCS ON 04/13/79 ANGLE AT TOP PERF: 59° @ 11305' Note: Refer to Production DB for historical perf data SIZE SPF NTERVA L Opn/Sqz DATE 3-1/8" 4 11206- 11224 S 05/23/87 3`1/8" 4 11236 - 11271 S 05/23/87 3-1/8" 4 11285- 11316 S 05/23/87 2-1/2" 6 11305- 11315 O 05/19/03 3-1/8" 4 11349- 11370 S 05/23/87 2" 4 11350 - 11370 O 05/12/00 3`1/8" 4 11389- 11408 O 06/21/87 2" 4 11390- 11447 O 05/12/00 2-5/8" 1 11416 - 11426 O 09/15/88 3`1/8" 4 11416 - 11454 O 06/21/87 2-5/8" 4 11426- 11454 O 09/15/88 DATE REV BY COMMI~ITS DATE REV BY COMMENTS 04/23/79 ORIGINAL COMPLETION 07/06/88 ! LAST WORKOVER 02/09/01 SIS-LG REV ISION 09/12/01 RN/TP CORRECTIONS 05/19/03 BJM/TLH ADD PERF& CMTSTRADDLE STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Op~iations performed: Operation shutdown_ Stimulate_ Plugging _ Perforate _X Pull tubing _ Alter casing _ Repair well _ Other _ 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB feet) Phillips Alaska, Inc. Development__X RKB 64 feet 3. Address Exploratory__ 7. Unit or Property name P. O. Box 100360 Stratigraphic__ Anchorage, AK 99510-0360 service__ Prudhoe Bay Unit 4. Location of well at surface 8. Well number 743' FNL, 264' FEL, Sec. 33, T11 N, R14E, UM (asp's 675925, 5950173) 07-12 At top of productive interval 9. Permit number / approval number 3878' FNL, 3733' FEL, Sec.33, T11 N, R14E, UM (asp's 672537, 5946962) 178-079/399-258 At effective depth 10. APl number 50-029-20337 At total depth 11. Field / Pool 4718' FNL, 4458' FEL, Sec. 33, T11N, R14E, UM (asp's 671834, 5946102) Prudhoe Bay Oil Pool 12. Present well condition summary Total depth: measured 11887 feet Plugs (measured) PBTD tagged (5/12/2000) @ 11449' MD. true vertical 9283 feet Effective depth: truemeasuredvertical 11449 feet9047 feet Junk(measured) Casing Length Size Cemented Measured Depth True vertical Depth Conductor 108' 20" 271 Sx AS 108' 108' Surface 2642' 13-3/8" soo Sx AS 2706' 2706' Production 11823' 9-5/8" 16oo Sx C~ass G & 3O0 Sx AS 1 1887' 9283' Perforation depth: measured 11350' - 11370'; 11389' - 11454'. true vertical 8994' - 9005'; 9015' - 9049'. ,~,. ..... ,~ Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 lPG '1'bg @ 11148' MD; 3-1/2",30.5# Blast Joints @ 11323' MD; 3-1/2", 9.3#,L-80 IPC Tbg @ 11347' MD. Packers & SSSV (type & measured depth) 9-5/8"X4-1/2" BOT HB PACKER @ 11168' MD; 9-5/8" X 3-1/2" BOT DB PACKER @ 11324' MD. 4-1/2" CAMCO BAL-O SSSV @ 2203' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Injection Data OiI-Bbl Gas-Md Water-Bbl Casing Pressure Tubing Pressure Prior to well operation (Shut in) Subsequent to operation 475 2391 276 253 15. Attachments 16. Status of well classification as: Copies of Logs and Surveys run __ Daily Report of Well Operations __X Oil ~X Gas ~ Suspended __ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed .... ~1~"~ ~ Title PAl Wellwork Design & Optimization Supervisor Date Erin Oba ~ ' ' ' Prepared by Paul Rauf 263-4990 Form 10-404 Rev 06/15/88 · SUBMIT IN DUPLICATE~~ 07-12 DESCRIPTION OF WORK COMPLETED PERFORATING OPERATIONS Date Event Summary 5/12/2000: MIRU ELU. PT'd equip to 3000 psi. RIH w/perf gun & tagged PBTD @ 11449' MD. Shot 77' of perforations as follows: Add Perforated: 11350'- 11370' MD (Zone 2B) 11408' - 11416' MD (Zone 2B) 11426' - 11446' MD (Zone 2B) Reference Log: BHCS 4/13/1979. Reperforated: 11390'- 11408' MD (Zone 2B) 11416'- 11426' MD (Zone 2B) 11446' - 11447' MD (Zone 2B) Used 2" HSD carriers & all shots @ 4 SPF, balanced press, random orientation, & 60°/120° phasing. POOH w/guns. ASF. RD ELU. Returned well to production & obtained a valid well test. Page 1 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown _ Stimulate _ Plugging _ Perforate _ Pull tubing_ Alter casing_ Repair well_ Other _X (straddle sqz) 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB feet) ARCO Alaska, Inc. Development__X RKB 64 feet 3. Address Exploratory__ 7. Unit or Property name P. O. Box 100360 Stratigraphic__ Anchorage, AK 99510-0360 Service__ Prudhoe Bay Unit 4. Location of well at surface 8. Well number 743' FNL, 264' FEL, Sec. 33, T11 N, R14E, UM (asp's 675925, 5950173) 07-12 At top of productive interval 9. Permit number / approval number 3878' FNL, 3733' FEL, SEC. 33, T11 N, R14E, UM (asp's 672537, 5946962) 178-079-0 / 399-258 At effective depth 10. APl number 50-029-20337 At total depth 11. Field / Pool 4718' FNL, 4458' FEL, Sec. 33, T11 N, R14E, UM (asp's 671834, 5946102) Prudhoe Bay Oil Pool 12. Present well condition summar Total depth: measured 11887 feet Plugs (measured) PBTD tagged @ 13486' MD (3/23/2000' true vertical 9283 feet Effective depth: measured 11600 feet Junk (measured) true vertical 9126 feet Casing Length Size Cemented Measured Depth True vertical Depth Conductor 20" 20" 271 Sx AS 108' 108' Surface 13-3/8" 13-3/8" 500 Sx AS 2706' 2706' Production 9-5/8" 9-5/8" 16oo Sx Class G & 300 Sx AS 11887' 9283' ORI61NAL RECEIVED Perforation depth: measured 11389'- 11408'; 11416'- 11426'; 11446'- 11454'. APR 12 ; 000 true vertical 9015'- 9025'; 9029' - 9035'; 9045' -9049'. J~a~l;~ 0il & Gas Cons. C0mmis~ Tubing (size, grade, & measured depth) 4-1/2", 12.6#, L-80 IPC Tbg @ 11148' MD; 3-1/2",30.5# Blast Joints @ 11323' MD; 3-1/2", 9.3#,L-80 IPC Tbg @ 11347' MD. Packers and SSSV (type & measured depth) 9-5/6" X 4-1/2" BOTHB PACKER @ 11169' MD; 9-5/8" X 3-1/2" BOTDB PACKER @ 11325' MD. 4-1/2" CAMCO BAL-O SSSV @ 2204' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Dailv Average Production or Injection Data OiI-Bbl Gas-Mci Water-Bbl Casing Pressure Tubing Pressure Prior to well operation 968 26862 253 948 Subsequent to operation 284 1498 688 254 15. Attachments 16. Status of well classification as: Copies of Logs and Surveys run m Daily Report of Well Operations .__X Oil __X Gas __ Suspended __ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ~~ ~q . ~ Title Arco Engineering Supervisor Date /-7/ -- Erin Oba Prepared by Paul Rauf 263-4990 Form 10-404 Rev 06/15/88 · SUBMIT IN DUPLICATE'~-~ 07-12 DESCRIPTION OF WORK COMPLETED CEMENT STRADDLE SQUEEZE Date Event Summary 2/0712000: 2/18/2000: 2/29/2000: 3/01/2000: 3/03/2000: 3/21/2000: 3/22/2000: 3/23/2000: 3/27/2000: 3/28/2000: RIH & tagged PBTD @ 11442' MD. MITIA to 3000 psi - passed. A CTU Cement Straddle Squeeze for GSO @ the 4-1/2" X 3-1/2" cross-over @ 11176' MD was performed as follows: MIRU CTU. PT'd equip to 4000 psi. RIH w/nozzle & tagged PBTD @ 11687' CTM. Fluid packed well w/1% KCL Water. Pumped a gelled sand slurry consisting of 17000 lbs of 20/40 mesh River Sand to place an isolation plug across the open perforation intervals f/: 11389'- 11408' MD (Zone 2) 11416' - 11426' MD (Zone 2) 11446' - 11454' MD (Zone 2) Reference Log: BHCS 4/13/1979. Tagged TOS @ 11338'. Performed injectivity test: 0.5 bpm @ 1500 psi. Plan to skip Gel portion of job. Squeeze target is the cross-over @ 11176' & the perforations behind the straddle located f/11301' - 11316'. Pumped 22 bbls of 15.6 ppg Latex Acid Resistive Cement. Placed 4 bbls of Cement behind pipe @ a max squeeze press of 2300 psi DP. Held for I hour. Contaminated cement w/ Biozan & jetted contaminated Cement f/the wellbore to 11150'. Achieved 1:1 rtns. Left a 190' Cement plug. POOH w/CT. FP well. Left 500 psi on well. RD. WOC. RIH & tagged TOC @ 11181' MD. MIRU CTU. PT'd equip. RIH & milled Cement to f/11232' to 11350' MD. POOH. RIH w~ CT & attempted to do FCO but tagged hard cement @ 11347'. POOH. RIH & milled cement to 11383'. POOH. RIH & FCO'd to 11400' MD. POOH. FP'd well. MITIA to 3000 psi - passed. RIH w~ CT & performed a FCO to 11600' MD w/Biozan sweep. Re-installed GLV's. Well BOL @ 1039 hrs. Returned well 07-12 to production & obtained a valid well test. Future options for this well are currently being evaluated. RECEIVED APR 1 2 2000 Alaska Oil & Gas Coas, Comrniss STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of r;quest: Abandon_ Suspend_ Operational shutdown _ Re-enter suspended well _ Alter casing _ Repair well _ Plugging _ Time extension _ Stimulate _ Change approved program _ Pull tubing _ Variance _ Perforate _ Other _X 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB feet) ARCO Alaska, Inc. Development__X RKB 64 feet 3. Address Exploratory __ 7. Unit or Property name P. O. Box 100360 Stratigraphic_ Anchorage, AK 99510-0360 Service_ Prudhoe Bay Unit 4. Location of well at surface ,/' ,/' ,~ 8. Well number 743' FNL, 264' FEL, Sec. 33, T11 N, R14E, UM 07-12 At top of productive interval 9. Permit number / ap/proval number 1403' FSL, 1548' FWL, SEC. 33, T11N, R14E, UM 178-079-0 At effective depth 10. APl number 50-029-20337 At total depth 11. Field / Pool 4718' FNL, 4458' FEL, Sec. 33, T11N, R14E, UM Prudhoe Bay Oil Pool 12. Present well condition summary Total depth: measured 11887 feet Plugs (measured) PBTD tagged @ 11449' MD (9/01/1999) true vertical 9283 feet Effective depth: truemeasuredvertical 11449 feet9047 feet Junk(measured) oRIGiNAL Casing Length Size Cemented Measured Depth True vertical Depth Conductor 108' 20" 271 Sx AS 108' 108' Surface 2642' 13-3/8" 500 Sx AS 2706' 2706' Production 11823' 9-5/8" 16o0 Sx C~ass G & 300 Sx AS 1 1887' 9283' RECEiFED Perforation depth: measured 11301'-11316'; 11389'-11408'; 11416'-11426'; 11446'-11454'. true vertical 8969'-8977'; 9015'-9025'; 9029'-9035'; 9045'-9049'. Tubing (size, grade, and measured depth 4-1/2", 12.6#, L-80 IPC Tbg @ 11148' MD; 3-1/2",30.5# Blast Joints @ 11323' MD; 3-1/2", 9.3#,L-80 IPC Tbg @ 11347' MD. Packers & SSSV (type & measured depth) 9-5/8"X4-1/2" BOTHBPACKER @ 11169'MD; 9-5/8"X3-1/2" BOTDB PACKER @ 11325'MD. 4-1/2" CAMCO BAL-O SSSV @ 2204' MD. 13. Attachments Description summary of proposal __X Detailed operations program __ BOP sketch __X 14. Estimated date for commencing operation 15. Status of well classification as: January 3, 2000 16. If proposal was verbally approved Oil __X Gas __ Suspended __ Name of approver Date approved Service 17. I hereby certity that the foregoing is true and correct to the best o! my knowledge. Questions? Call Mike Nlznlk @ 263-4561. Signed ~~~.z~.._ ~,.~ Title: AAI PBRD WF/EOR Supervisor Date Gordon Pospisil Prepared b)/ Paul Rauf 263-4990 FOR COMMISSION USE ONLY Conditions of approval: Notify Commission so representative may witness I Approval no_.. Plug integrity __ BOP Test~_ Location clearance --I Mechanical Integrity Test __ Subsequent form required 10- ~¥'~ ~ .::~R'GINAL SIGNED'BY /~,~ ..~.., ~'~ Approved by order of the Commission Dnh~r~ ~J t~.hH~f~,n~nn ,,~ommissioner Date Form 10-403 Rev 06/15/88 · SUBMIT IN TRIPLICATE 07-12 Cement Straddle Squeeze A straddle was run in this well over the upper Zone 2 perforations to control gas production. The upper packer in the straddle has started leaking and we propose cementing off the straddle interval to stop the leak. RU Slickline and drift/tag. Pull production valve from mandrel in station #10 at 11,275' MD to pump cement through. Perform an injectivity test to ensure flow is possible through the mandrel and into the formation. 2. 'RU CTU. Place sand plug over perforations and in tubing up to -11,310' MD. . RU cementers. Pump 25 bbls of 15.8 ppg Class G Latex Acid Resistant Cement into the straddle section and then lay-in cement in the tubing to 11,168'. This will balance the cement level in the tubing and IA. 4. Wait on cement 3 days. o RU CTU. Mill out cement to sand interface & pressure test inner annulus to 3000 psi. FCO to TD. 6. Place well on production. RECEIVED ,r,cc 2 ~ i999 ARCO ~ Calculations Chart Sheet number Subject 0 7--' t.~ ?r-opo~=,,/ (,4/'e/l,&o~ ,.~hcm w~'c L of / File I By ~ Date ~ ~[ 7~ ? ~ ..... : ...... ' ~ ~~~'-I~o~y ' .... ; ' ~~~ ' '~ Fe~~,~s: 16 ~g~- /~ . ' ...... .. ,.. . - . . : :: : , [ :C 2'1 ~999 · . ~o~ - . .3: " ' ' ' ' ~ .- , t , , ~ ~ ' 1 R.q-RRR 1 ARCO ALASKA, INC. xo Tubing-IPC Casing WSSSV Casing Gas Lift Mandrel/Dummy Valve I Gas Lift Mandrel/Dummy Valve 2 Gas Lift Mandrel/Dummy Valve 3 Gas Lift Mandrel/Dummy Valve 4 Gas Lift Mandrel/Dummy Valve 5 Gas Lift Mandrel/Dummy Valve 6 Gas Lift Mandrel/Dummy Valve 7 Gas Lift Mandrel/Dummy Valve 8 Gas Lift Mandrel/Dummy Valve 9 PBR PKR xo BL/JT Blast Joints STR ." Perf -...-" Production Mandrel/Dummy Valve 10 Tubing-IPC PKR SQZ NOGO SQZ SOSUB TTL APl: 500292033700 SSSV Type: Annular Fluid: Diesel/8.3 SW Reference Log: BHCS Last Tag: Last Tag Date: Well Type: PROD Prudhoe Bay Orig Compltn: 4/23/79 Last W/O: 7~6~88 Ref Log Date: 4/13/79 RKB: 64 ft TD: 11887 ftKB Max Hole 61 deg @ 10600 Angle: Angle @ TS: 61 deg @ 10622 07-12 Angle @ TD: 57 deg @ 11887 Rev Reason: Pull TT Plug by ImO Last Update: 12/10/99 Depth Comment 2334 FO @ 2334' 244g FO @ 2449' Genera! Notes:: Date Note 11/11/99 Jewelry @ 11,176' found leaking 11343 Min ID = 2.750" (3-1/2" Otis XN Nipple) FRAC 05/21/89 BALL SEALER TREATMENT 02/18/89 TTL ELM @ 11346: ELM Tubing Tail (Logged 09/15/88) Daterun: 1979-04-23 Othe~ (PlUgS~ equiPi, etc~) -JEWELRY Depth TVD Type Description 42 42 XO Crossover 5-1/2" x 4-1/2" 2203 2203 WSSSV 4-1/2" Camco BAL-O SSSV Nipple 11154 8892 PBR 4-1/2" Baker PBR Assembly 11168 8900 PKR 9-5/8" x 4-1/2" BOT HB Packer 11176 8904 BL/JT 3-1/2" Blast Joints (147') 11176 8904 XO Crossover 4-1/2" x 3-1/2" 11324 8981 PKR 9-5/8" x 3-1/2" BOT DB Packer 11343 8991 NOGO 3-1/2" Otis XN Nipple. 11346 8993 SOSUB 3-1/2" BOT Shearout Sub 11347 8993 TTL 3-1/2" Tubing Tail CaS!~g strings-Al! Size Weight Grade Top Btm Feet Description 13.375 72.00 N-80 0 2706 2706 Casing 9.625 47.00 N-80 0 11887 11887 Casing TUbihg: St~S-Atl : Size Weight Grade Top Btm Feet Description 4.500 12.60 L-80 0 11148 11148 Tubing-lPG 3.500 30.50 11176 11323 147 Blast Joints 3.500 9.30 L-80 11323 11347 24 Tubing-lPG Gas Eift MandrelS/Valves : Stn MD TVD Man Man VMfr VType VOD Latch Port TRO Mfr Type 1 2783 2783 TE CAMCO RD 1,5 TG 0.000 2 4751 4667 TE MC VR-D 1.5 TG 0.000 3 6717 5973 TE MC VR-D 1.5 TG 0.000 4 8132 6907 TE MC VR-D 1.5 TG 0.000 5 9087 7610 TE MC VR-D 1.5 TG 0.000 6 9827 8143 TE MC VR-D 1.5 TG 0.000 7 10653 8642 TE MC VR-D 1.5 TG 0,000 8 10931 8780 TE MC VR-D 1.5 TG 0.000 9 11043 8836 TE MC VR-KED 1.5 TGE 0.000 Prod uCti~nMahdrels/Valves Stn MD TVD Man Man VMfr Mfr Type 10 11275 8955 CA CA Perforations:::::: Date Run 0 11/7/99 0 5115/89 0 7/6/88 0 7~6~88 0 7~6/88 0 7/6/88 0 7/6/88 0 7/6/88 0 7/6/88 ID 0.000 3.813 0.000 0.000 0.000 0.000 0.000 2.750 0.000 0.000 Vlv Commenl Interval 3'VD Zone 11206 - 11224 8919 - 8929 ZONE 2 11236 - 11271 8935 - 8953 ZONE 2 11285 - 11316 8961 - 8977 ZONE 2 11301 - 11316 8969 - 8977 ZONE 2 11349 - 11370 8994 - 9005 ZONE 2 11349 - 11370_ 8994 - 9005 ZONE 2 11349 - 11370 8994 - 9006 ZONE 2 11389 - 11408 9015 - 9025 ZONE 2 11389 - 11408 9015 - 9025 ZONE 2 11389- 11408 9015 - 9025 ZONE 2 11389 - 11400 9015 - 9021 ZONE 2 11400 - 11408 9021 - 9025 ZONE 2 11416- 11446 9029- 9045 ZONE 2 11416 - 11446 9029- 9045 ZONE 2 11416 - 11454 9029 - 9049 ZONE 2 11416 - 11446 9029- 9045 ZONE 2 11446 - 11454 9045- 9049 ZONE 2 11446 - 11454 9045 - 9049 ZONE 2 st!mutat!~h~ & Treatments: Interval Date Type 11206-11446 5/22/87 SQZ 11206 - 11446 8/8/87 SQZ 11206- 11224. 7/6/88 STR 11236 - 11271 7/6/88 STR 11285- 11301 7/6/88 STR VType VOD Latch Port TRO Date Vlv Run Commenl RKED 1.5 RKP 0.000 0 12/4/97 Status Feet~PF Date Type Comment C 18 4 8/14/79 IPERF~ C 35 4 8/14/79 C 31 4 8/14/79 IPERF '~ O 15 4 7/4/88 RPERF-x C 21 410/24/80 APERF C 21 4 6/21/87 RPERF O 21 4 9/1/87 RPERF C 19 010/24/80 APERF 19 4 6/21/87 RPERF O 19 4 9/1/87 RPERF O 11 1 9/15/88 RPERF O 8 4 9/15/88' RPERF C 30 4 6/26/84 APERF 30 4 6/21/87 RPERF O 38 4 9/1/87 RPERF O 30 I 9/15/88 RPERF C 8 4 6/21/87 APERF O 8 4 RPERF Co.ment EIVED GSO Sqz ... ReSqz for GSO ..',.', 2 't 'i999 6 5 4 3 2 COILED TUBINg UNIT BOP EOU! PMENT RECEIVED 1. 5000 PSI 7" WELLHEAD CONNECTOR FLAI~OE 2. 5000 PSi4 1/16" PiPE RAMS 3. 5000 PSI4 1/6" HYDRAULIC SLIPS 4. 5000 PSI4 1/6" SHEAR RAMS ~. ~ PSI4 1/6" BLIND RAMS &. 5000 PSI4 1/1~" STUFFING BOX HIREL]NE BOP EOU]PMEN1 1. 5000 PSI ?" WELLHEAD CONNECIOR IrLANG£ 2. 5000 PSI WlRELIN[ RAblS (VARIABLE SIZE) ~3. 5OD0 PSI 4 1/6" L UBRICAIOR 4. 5000 PS~ 4 ~/6" fLOW 1UB£ PACK-Orr JUN O 1 1998 BPXA PDC ARCO ALASKA INC. DRILLSITE 7, WELL NO. 7-12 PRUDHOE BAY, E.O.A., ALASKA Gyro Continuous Multishot Survey Inside 4,5" TUBING Survey date' 1'7-MAY, 1998 Job number' AK0598GCE466 RECEIVED gyroId CONTENTS JOB NUMBER · AK0598GCE466 1. DISCUSSION , SURVEY CERTIFICATION SHEET 2. SURVEY DETAILS 3. INRUN SURVEY LISTING 4. QUALITY CONTROL 5. EQUIPMENT AND CHRONOLOGICAL REPORT 1. DISCUSSION , SURVEY CERTIFICATION SHEET DISCUSSION JOB NUMBER' AK0598GCE466 Tool 772 was run in WELL# 7-12 on SCHLUMBERGER 7/32" wireline inside 4.5" TUBING. The survey was completed without any problems. SURVEY CERTIFICATION SHEET JOB NUMBER' AK0598GCE466 The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knowledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Checked by :- JACK E. MAY OPERATIONS MANAGER 2. SURVEY DETAILS SURVEY DETAILS JOB NUMBER: AK0598GCE466 CLIENT: ARCO ALASKA INC. RIG: SCHLUMBERGER LOCATION: DRILLSITE 7 WELL: 7-12 LATITUDE: 70.28 N LONGITUDE: 148.4 W SURVEY DATE: SURVEY TYPE : 17 -MAY, 1998 GYRO CONTINUOUS MULTISHOT DEPTH REFERENCE: ROTARY TABLE ELEVATION 64.0' MAX. SURVEY DEPTH: 11300' SURVEY TIED ONTO: NA SURVEY INTERVAL: 0-11300' APl NUMBER: 050-029-20337 TARGET DIRECTION: 0.0 GRID CORRECTION: N/A CALCULATION METHOD: MINIMUM CURVATURE SURVEYOR: TOM STODDARD 3. INRUN SURVEY LISTING A Gyroda t a D i r e c t i ona I Survey for ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, ALASKA Job Number: AK0598GCE466 Run Date: 17-May-98 08:25:36 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.280000 deg. N Sub-sea Correction from Vertical Reference: 64 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyro da t a D i r e c t i ona I Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, Job Number: AK0598GCE466 PRUDHOE BAY FIELD, ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet _.f.~ deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 0.0 0.00 0.00 100.0 .44 208.94 200.0 .42 184.57 300.0 .52 187.15 400.0 .44 183.23 0.00 0.0 -64.0 0.0 0.0 0.0 .44 100.0 36.0 -.3 .4 208.9 .18 200.0 136.0 -1.0 1.1 201.1 .10 300.0 236.0 -1.9 1.9 194.6 .09 400.0 336.0 -2.7 2.8 191.8 0.0 N 0.0 E .3 S .2 W 1.0 S .4 W 1.9 S .5 W 2.7 S .6 W 500.0 .56 189.64 600.0 .26 195.82 700.0 .09 269.00 800.0 .20 217.54 900.0 .05 62.36 .13 .30 .25 .16 .25 500.0 436.0 -3.6 3.6 190.6 600.0 536.0 -4.3 4.3 190.8 700.0 636.0 -4.5 4.6 191.9 800.0 736.0 -4.6 4.8 193.7 900.0 836.0 -4.7 4.9 194.1 3.6 S .7 W 4.3 S .8 W 4.5 S .9 W 4.6 S 1.1 W 4.7 S 1.2 W 1000.0 .23 16.85 1100.0 .24 307.74 1200.0 .25 319.88 1300.0 .25 163.79 1400.0 .23 114,91 .19 .27 .05 .49 .20 1000.0 936.0 -4.5 4.7 193.6 1100.0 1036.0 -4.2 4.4 196.0 1200.0 1136.0 -3.9 4.2 201.1 1300.0 1236.0 -4.0 4.3 201.9 1400.0 1336.0 -4.3 4.5 197.6 4.5 S 1.1 W 4.2 S 1.2 W 3.9 S 1.5 W 4.0 S 1.6 W 4.3 S 1.4 W 1500.0 .11 211.56 1600.0 .17 98.58 1700.0 .39 144.05 1800.0 .23 119.18 1900.0 .15 81.63 .26 .24 .30 .21 .15 1500.0 1436.0 -4.4 4.6 195.4 1600.0 1536.0 -4.5 4.7 193.9 1700.0 1636.0 -4.8 4.9 189.0 1800.0 1736.0 -5.2 5.2 184.3 1900.0 1836~0 -5.3 5.3 180.9 4.4 S 1.2 W 4.5 S 1.1 W 4.8 S .8 W 5.2 S .4 W 5.3 S .1 W 2ooo.o .i8 60.41 2100.0 .34 61.98 2200.0 .39 54.19 2300.0 .79 80.57 2400.0 .67 90.80 07 16 O7 48 18 2000'.0 1936.0 -5.2 5.2 178.0 2100.0 2036.0 -5.0 5.0 173.4 2200.0 2136.0 -4.6 4.8 166.5 2300.0 2236.0 -4.3 4.8 154.5 '2400.0 2336.0 -4.2 5.4 141.7 5.2 S .2 E 5.0 S .6 E 4.6 S 1.1 E 4.3 S 2.1 E 4.2 S 3.3 E A G y r o d a t a D i ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, ALASKA Job Number: AK0598GCE466 r e c t i ona 1 Survey Page MEASURED I N C L AZIMUTH DEPTH feet deg. deg. 2500.0 .86 85.05 2600.0 .86 106.46 2700.0 .53 80.79 2800.0 .49 118.41 2900.0 .51 89.33 3000.0 .53 93.10 3100.0 .57 132.22 3200.0 1.02 151.73 3300.0 2.86 171.12 3400.0 4.66 176.53 3500.0. 6.83 181.66 3600.0 8.32 189.13 3700.0 9.72 201.98 3800.'0 11.68 213.03 3900.0 14.24 213.50 3950.0 15.28 213.84 4000.0 15.65 216.89 4050.0 16.40 218.12 4100.0 17.56 219.70 4150.0 18.68 220.19 4200.0 19.97 220.41 4250.0 21.36 220.46 4300.0 22.63 220.36 4350.0 23.79 220.58 4400.0 25.23 220.39 DOGLEG VERTICAL SUBSEA SEVERITY DEPTH DEPTH deg./ feet feet 100 ft. .20 2499.9 2435.9 .32 2599.9 2535.9 .45 2699.9 2635.9 .33 2799.9 2735.9 .25 2899.9 2835.9 .04 2999.9 2935.9 .37 3099.9 3035.9 .52 3199.9 3135.9 1.93' 3299.8 3235.8 1.83 3399.6 3335.6 2.22 3499.1 3435.1 1.78 3598.2 3534.2 2.45 3697.0 3633.0 2.83 3795.3 3731.3 2.56 3892.7 3828.7 2.10 3941.1 3877.1 1.78 3989.3 3925.3 1.66 4037.3 3973.3 2.49 4085.1 4021.1 2.25 4132.7 4068.7 2.59 4179.8 4115.8 2.78 4226.6 4162.6 2.55 4273.0 4209.0 2.31 4318.9 4254.9 2.88 4364.4 4300.4 VERTICAL CLOSURE SECTION DIST. AZIMUTH feet feet deg. -4.2 6.3 131.7 -4.3 7.5 125.1 -4.5 8.6 121.4 -4.6 9.3 119.4 -4.8 10.2 118.1 -4.8 11.0 116.0 -5.2 11.9 115.8 -6.3 13.1 118.7 -9.5 15.5 127.8 -16.0 20.6 141.2 -26.0 29.1 153.5 -39.1 40.8 163.4 -54.1 54.6 172.3 -70.4 70.4 181.1 -89.2 90.2 188.7 -99.8 101.9 191.7 -110.6 114.2 194.4 -121.6 127.0 196.8 -133.0 140.7 199.1 -144.9 155.3 201.1 -157.5 171.0 202.9 -170.9 187.9 204.6 -185.2 206.0 206.0 -200.2 225.1 207.2 -215.9 245.4 208.4 HORIZONTAL COORDINATES feet 4.2 S 4.7 E 4.3 S 6.1 E 4.5 S 7.3 E 4.6 S 8.1 E 4.8 S 9.0 E 4.8 S 9.9 E 5.2 S 10.7 E 6.3 S 11.5 E 9.5 S 12.3 E 16.0 S 12.9 E 26.0 S 13.0 E 39.1 S 11.7 E 54.1 S 7.4 E 70.4 S 1.3 W 89.2 S 13.6 W 99.8 S 20.7 W 110.6 S 28.4 W 121.6 S 36.8 W 133.0 S 46.0 W 144.9 S 56.0 W 157.5 S 66.7 W 170.9 S 78.1 W 185.2 S 90.3 W 200.2 S 103.1 W 215.9 S 116.5 W Directional Survey A Gyrodata ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, Job Number: AK0598GCE466 PRUDHOE BAY FIELD, ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet .? deg. deg. deg./ ~ 100 ft. VERTICAL SUBSEA VERTICAL DEPTH DEPTH SECTION feet feet feet CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 4450.0 26.71 220.53 2.98 4500.0 28.12 220.73 2.81 4550.0 29.58 220.89 2.94 4600.0 31.06 221.55 3.02 4650.0 32.35 221.52 2.59 4409.4 4453.8 4497.6 4540.7 4583.3 4345.4 -232.6 4389.8 -250.1 4433.6 -268.3 4476.7 -287.3 4519.3 -307.0 266.8 209.3 289.4 210.2 313.2 211.0 338.0 211.8 364.0 212.5 232.6 S 130.7 W 250.1 S 145.7 W 268.3 S 161.5 W 287.3 S 178.1 W 307.0 S 195.5 W 4700.0 33.94 221.15 3.21 4750.0 35.35 220.74 2.84 4800.0 36.72 220.97 2.75 4850.0 38.00 221.48 2.65 4900.0 39.27 221.94 2.59 4625.1 4666.3 4706.7 4746.4 4785.5 4561.1 -327.5 4602.3 -349.0 4642 · 7 -371 . 2 4682.4 -394.0 4721 · 5 -417 · 3 391.0 213.1 419.2 213.6 448.4 214.1 478.5 214.6 509.5 215.0 327.5 S 213.6 W 349.0 S 232.2 W 371.2 S 251.5 W 394.0 S 271.5 W 417.3 S 292.2 W 4950.0 40.70 222.46 5000.0 42.05 222.79 5050.0 43.15 223.22 5100.0 44.28 223.26 5150.0 45.66 223.36 5200.0 47.20 223.33 5250.0 48.36 223.39 5300.0 48.53 223.32 5350.0 48.78 223.08 5400.0 49.06 222'.81 2.95 2.73 2 .28 2..26 2 .77 3.08 2 .32 .36 .62 .69 4823.8 4861.3 4898.1 4934.3 4969.6 5004.1 5037.7 5070.8 5103.9 5136.7 4759.8 -441.1 4797.3 -465.5 4834.1 -490.2 4870.3 -515.4 4905.6 -541.1 4940.1 -567.4 4973.7 -594.4 5006.8 -621.6 5039.9 -648.9 5072.7 -676.5 541.4 215.4 574.2 215.8 607.8 216.2 642.1 216.6 677.2 217.0 713.2 217.3 750.0 217.6 787.3 217.9 824.7 218.1 862.2 218.3 441.1 S 313.8 W 465.5 S 336.2 W 490.2 S 359.3 W 515.4 S 383.0 W 541.1 S 407.2 W 567.4 S 432.1 W 594.4 S 457.5 W 621.6 S 483.2 W 648.9 S .508.9 W 676.5 S 534.5 W 5450.0 49.43 223..0 5500.0 49.84 223.0 5550.0 49.86 223.7 5600.0 49.99 223.6 5650.0 49.95 223.8 4 7 8 1 2 .82 .81 .09 .38 .33 5169.4 5201.8 5234.0 5266.2 5298.3 5105.4 -704.3 5137.8 -732.1 5170.0 -759.8 5202.2 -787.5 5234.3 -815.2 900.0 218.5 938.0 218.7 976.0 218.9 1014.2 219.1 1052.3 219.2 704.3 S 560.3 W 732.1 S 586.3 W 759.8 S 612.6 W 787.5 S 639.1 W · 815.2 S 665.5 W A G y r o d a t a Di re c t i onal Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466 ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet ..r deg. deg. deg./ ~ 100 ft. VERTICAL SUBSEA VERTICAL DEPTH DEPTH SECTION feet feet feet CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 5700.0 50.01 223.99 .30 5750.0 49.97 223.89 .17 5800.0 49.73 223.89 .50 5850.0 50.11 223.91 .76 5900.0 50.74 224.20 1.34 5950.0 51.31 224.32 1.15 6000.0 51.05 224.77 .86 6050.0 50.94 224.18 .95 6100.0 50.90 224.56 .60 6150.0 51.17 224.39 .60 5330.5 5362.6 5394.9 5427.1 5458.9 5490.4 5521.7 5553.2 -5584.7 5616.2 5266.5 -842.8 5298.6 -870.3 5330.9 -897.9 5363.1 -925.5 5394.9 -953.1 5426.4 -981.0 5457 . 7 -1008 . 7 5489.2 -1036.5 5520.7 -1064.2 5552 . 2 -1092.0 1090.5 219.4 1128.7 219.5 1166.8 219.7 1205.0 219.8 1243.4 220.0 1282.2 220.1 1321.0 220.2 1359.7 220.3 1398.5 220.4 1437.2 220.6 842.8 S 692.1 W 870.3 S 718.6 W 897.9 S 745.1 W 925.5 S 771.7 W 953.1 S 798.5 W 981.0 S 825.6 W 1008.7 S 852.9 W 1036.5 S 880.1 W 1064.2 S 907.3 W 1092.0 S 934.5 W 6200.0 51.07 224.47 6250.0 50.93 223.91 6300.0 50.94 224.51 6350.0 51.20 224.65 6400.0 51.20 224.61 6450.0 50.99 224.32 6500.0 51.14 224.20 6550.0 51.09 224.27 6600.0 50.35 224.24 6650.0 51.02 224.21 .22 .91 .94 .57 .05 .62 .34 .15 1.48 1.34 5647 5679 5710 5741 5773 .5 .0 .5 .9 .3 5804.7 5836.1 5867.5 5899.1 5930.8 5583.5 -1119.7 5615.0 -1147.6 5646.5 -1175.4 5677.9 -1203.1 5709.3 -1230.9 5740.7 -1258.6 5772.1 -1286.5 5803.5 -1314.4 5835.1 -1342.1 5866.8 -1369.8 1476.1 220.7 1514.9 220.8 1553.6 220.8 1592.4 220.9 1631.3 221.0 1670.2 221.1 1709.0 221.2 1747.9 221.2 1786.5 221.3 1825.2 221.4 1119.7 S 961.8 W 1147.6 S 988.8 W 1175.4 S 1015.9 W 1203.1 S 1043.2 W 1230.9 S 1070.6 W 1258.6 S 1097.9 W 1286.5 S 1125.0 W 1314.4 S 1152.1 W 1342.1 S 1179.2 W 1369.8 S 1206.1 W 6700.0 51.13 224.21 6750.0 51.41 224.41 6800.0 50.77 224.18 6850.0 50.89 224.53 6900.0 51.03 224.63 22 65 34 6O 33 5962.2 5993.5 6024.9 6056.5 6088.0 5898.2 -1397.7 5929.5 -1425.6 5960.9 -1453.5 5992.5 -1481.2 6024.0 -1508.8 1864.0 221.4 1903..0 221.5 1941.8 221.5 1980.5 221.6 2019.3 221.7 1397.7 S 1233.3 W 1425.6 S 1260.5 W 1453.5 S 1287.7 W 1481.2 S 1314.8 W · 1508.8 S 1342.0 W ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, Job Number: AK0598GCE466 A G y r o d a t PRUDHOE BAY FIELD, a D i r e c t i ALASKA o n a 1 Survey Page MEASURED I N C L AZIMUTH DEPTH feet .? deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL SEVERITY DEPTH DEPTH SECTION deg./ feet feet feet 100 ft. CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 6950.0 50.97 224.30 7000.0 50.77 224.35 7050.0 50.77 224.24 7100.0 50.43 224.70 7150.0 50.24 224.00 .53 6119.5 .40 6151.0 · 17 6182.6 · 99 6214.4 .14 6246.3 6055.5 -1536.6 6087.0 -1564.3 6118.6 -1592.0 6150.4 -1619.6 6182.3 -1647.1 2058.1 221.7 2096.9 221.8 2135.6 221.8 2174.2 221.8 2212.6 221.9 1536.6 S 1369.3 W 1564.3 S 1396.4 W 1592.0 S 1423.4 W 1619.6 S 1450.5 W 1647.1 S 1477.4 W 7200.0 50. 14 224. 14 7250 . 0 49 . 88 223 . 80 7300.0 49.64 223 . 88 7350 . 0 49 . 48 223 . 17 7400.0 49.06 224.20 7450.0 48.64 223.00 7500.0 48.42 223.49 7551.0 48.42 223.15 7601.0 47.92 222.76 7650.0 47.91 222.90 7701.0 47.48 223.01 7751.0 47.48 222.32 7800.0 47.02 222.82 7850.0 46.53 222.38 7900.0 46.21 222.37 .30 6278.3 .7'4 6310.4 .48 6342.7 1.13 6375.2 1.77 6407.8 1.99 6440.7 .85 6473.8 .50 6507.6 1.17 6541.0 .21 6573.8 .86 6608.2 1.03 6642.0 1.21 6675.2 1.17 6709.5 .65 6744.0 6214.3 -1674.7 6246.4 -1702.3 6278.7 -1729.8 6311.2 -1757.4 6343.8 -1784.8 6376.7 -1812.1 6409.8 -1839.4 6443.6 -1867.1 6477.0 -1894.4 6509.8 -1921.1 6544.2 -1948.7 6578.0 -1975.8 6611.2 -2002.3 6645.5 -2029.1 6680.0 -2055.8 2251.0 221.9 2289.3 222.0 2327.4 222.0 2365.5 222.0 2403.3 222.0 2441.0 222.1 2478.4 222.1 2516.6 222.1 2553.8 222.1 2590.2 222.1 2627.9 222.1 2664.8 222.1 2700.7 222.2 2737.2 222.2 2773.4 222.2 1674.7 S 1504.1 W 1702.3 S 1530.7 W 1729.8 S 1557.1 W 1757.4 S 1583.3 W 1784.8 S 1609.5 W 1812.1 S 1635.5 W 1839.4 S 1661.1 W 1867.1 S 1687.3 W 1894.4 S 1712.7 W 1921.1 S 1737.4 W 1948.7 S 1763.1 W 1975.8 S 1788.1 W 2002.3 S 1812.4 W 2029.1 S 1837.1 W 2055.8 S 1861.5 W 7950.0 45.85 221.41 8001.0 45.33 222.35 8050.0 45.21 221.97 8100.0 45.04 221.99 8151.0 45.03 221.61 .56 6778.7 .67 6814.4 .60 6848.8 ~33 6884.1 .52 6920.2 6714.7 -2082.6 2809.3 222.2 6750.4 -2109.7 2845.8 222.2 6784.8 -2135.5 2880.6 222.2 6820.1 -2161.9 2916.0 222.2 6856.2 -2188.8 2952.1 222.1 2082.6 S 1885.5 W 2109.7 S 1909.8 W 2135.5 S 1933.2 W 2161.9 S 1956.9 W 2188.8 S 1981.0' W A Gyrodata Di r e c t ional Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466 ALASKA Page MEASURED I N C L AZIMUTH DEPTH feet _.Z~ deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL SEVERITY DEPTH DEPTH SECTION deg./ feet feet feet 100 ft. CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 8200.0 44.16 221.76 8251.0 44.27 221.40 8301.0 43.91 220.89 8350.0 43.70 221.91 8400.0 43.23 220.30 1.80 6955.0 .54 6991.6 1.00 7027.5 1.49 7062.9 2.40 7099.2 6891 6927 6963 6998 7035 .0 .6 .5 .9 .2 -2214.5 -2241.1 -2267.3 -2292.7 -2318.6 2986.5 222.1 3022.1 222.1 3056.9 222.1 3090.8 222.1 3125.2 222.1 2214.5 S 2003.8 W 2241.1 S 2027.4 W 2267.3 S 2050.3 W 2292.7 S 2072.8 W 2318.6 S 2095.4 W 8450.0 42.91 221.53 8500.0 42.59 220.91 8550.0 42.54 221.25 8601.0 42.58 220.91 8651.0 41.43 222.29 1.79 7135.7 1.06 7172.4 .48 7209.2 .46 7246.8 2.94 7284.0 7071 7108 7145 7182 7220 .7 .4 .2 .8 .0 -2344.4 -2370.0 -2395.5 -2421.5 -2446.5 3159.3 222.1 3193.2 222.1 3227.1 222.1 3261.5 222.1 3295.0 222.1 2344.4 S 2117.7 W 2370.0 S 2140.1 W 2395.5 S 2162.3 W 2421.5 S 2185.0 W 2446.5 S 2207.2 W 8701.0 41.56 221.88 8750.0 41.54 222.02 8800.0 41.06 222.93 8851.0 41.04 223.22 8901.0 41.67 222.35 8950.0 41.98 223.05 9000.0 42.18 222.72 9050.0 42.03 223.43 9100.0 42.56 223.20 9150.0 42.31 223.64 .61 7321.4 .20 7358.1 1.54 7395.6 .38 7434.1 1.72 7471.6 1.14 7508.1 .60 7545.3 1.00 7582.4 1.11 7619.3 .78 7656.2 7257 7294 7331 7370 7407 7444 7481 7518 7555 7592 .4 .1 .6 .1 .6 .1 .3 .4 .3 .2 -2471.1 -2495.2 -2519.6 -2544.1 -2568.3 -2592.3 -2616.9 -2641.4 -2665.8 -2690.3 3328.1 222.1 3360.6 222.1 3393.6 222.1 3427.1 222.1 3460.1 222.1 3492.8 222.1 3526.3 222.1 3559.8 222.1 3593.5 222.1 3627.2 222.1 2471.1 S 2229.4 W 2495.2 S 2251.1 W 2519.6 S 2273.4 W 2544.1 S 2296.3 W 2568.3 S 2318.7 W 2592.3 S 2340.9 W 2616.9 S 2363.7 W 2641.4 S 2386.6 W 2665.8 S 2409.7 W 2690.3 S 2432.8 W 9200.0 42.90 224.40 9251.0 43.25 224.41 9300.0 43.10 224.37 9351.0 43.43 225.06 9401.0 43.79 225.65 1.56 7693.0 .70 7730.3 .32 7766.0 1.12 7803.2 1.10 7839.4 7629.0 7666.3 7702.0 7739.2 7775.4 -2714.7 -2739.6 -2763.5 -2788.4 -2812.6 3661.0 222.1 3695.8 222.2 3729.3 222.2 3764.3 222.2 3798.7 222.2 2714.7 S 2456.4 W 2739.6 S 2480.7 W 2763.5 S 2504.2 W 2788.4 S 2528.8 W · 2812.6 S 2553.3 W A Gyrodata Directi o n a 1 Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466 ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet .zJ deg. deg. deg./ ~ 100 ft. VERTICAL SUBSEA VERTICAL DEPTH DEPTH SECTION feet feet feet CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 9450.0 44.25 225.37 1.02 9500.0 44.04 227.01 2.32 9550.0 44.39 227.05 .70 9600.0 44.41 228.01 1.35 9651.0 44.81 228.24 .85 7874.6 7910.5 7946.3 7982.0 8018.3 7810.6 -2836.5 7846.5 -2860.6 7882.3 -2884.3 7918.0 -2907.9 7954.3 -2931.9 3832.7 222.3 3867.4 222.3 3902.2 222.3 3937.0 222.4 3972.7 222.4 2836.5 S 2577.6 W 2860.6 S 2602.7 W 2884.3 S 2628.3 W 2907.9 S 2654.1 W 2931.9 S 2680.7 W 9700.0 44.33 229.91 2.58 9751.0 44.76 230.10 .89 9801.0 45.01 230.38 .63 9850.0 45.11 231.67 1.88 9900.0 45.39 232.00 .72 8053.2 8089.6 8125.0 8159.6 8194.8 7989.2 -2954.4 4006.8 222.5 8025.6 -2977.4 4042.3 222.6 8061.0 -2999.9 4077.3 222.6 8095.6 -3021.8 4111.6 222.7 8130.8 -3043.7 4146.7 222.8 2954.4 S 2706.7 W 2977.4 S 2734.1 W 2999.9 S 2761.3 W 3021.8 S 2788.2 W 3043.7 S 2816.1 W 9950.0 45.42 232.89 1.27 10001.0 45.66 233.90 1.50 10051.0 46.80 234.45 2.41 10100.0 48.51 234.91 3.55 10150.0 49.87 236.04 3.22 10201.0 51.64 236.39 3.51 10250.0 52.97 236.80 2.79 10300.0 54.39 237.01 2.86 10351.0 55.63 237.12 2.44 10401.0 56.65 237.94 2.45 822'9.9 8265.7 8300.3 8333.3 8365.9 8398.2 8428.2 8457.8 8487.0 8514.9 8165.9 -3065.4 4181.8 222.9 8201.7 -3087.1 4217.5 222.9 8236.3 -3108.2 4253.0 223.0 8269.3 -3129.2 4288.4 223.1 8301.9 -3150.6 4325.4 223.2 8334.2 -3172.6 4363.9 223.4 8364.2 -3193.9 4401.7 223.5 8393.8 -3215.9 4440.8 223.6 8423.0 -3238.6 4481.5 223.7 8450.9 -3260.9 4521.8 223.9 3065.4 S 2844.4 W 3087.1 S 2873.6 W 3108.2 S 2902.9 W 3129.2 S 2932.4 W 3150.6 S 2963.6 W 3172.6 S 2996.4 W 3193.9 S 3028.8 W 3215.9 S 3062.5 W 3238.6 S 3097.6 W 3260.9 S 3132.6 W 10450.0 58.33 237.54 3.51 10501.0 59.75 237.13 2.86 10551.0 60.89 237.29 2.30 10600.0 61.29 236.09 2.28 10650.0 60.45 237.49 2.97 8541.2 8567.5 8592.2 8615.9 8640.2 8477.2 -3283.0 4561.9 224.0 8503.5 -3306.6 4604.5 224.1 8528.2 -3330.1 4646.8 224.2 8551.9 -3353.7 4688.7 224.3 8576.2 -3377.6 4731.4 224.4 3283.0 S 3167.6 W 3306.6 S 3204.4 W 3330.1 S 3240.9 W 3353.7 S 3276.7 W · 3377.6 S 3313.3 W A G y r o d a t a Direc tional Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466 ALASKA Page MEASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet ..z- deg. deg. deg./ 100 ft. VERTICAL SUBSEA VERTICAL CLOSURE DEPTH DEPTH SECTION DIST. AZIMUTH feet feet feet feet deg. HORIZONTAL COORDINATES feet 10700.0 60.55 236.98 .91 10750.0 60.63 235.89 1.91 10800.0 60.24 237.42 2.77 10850.0 59.66 236.46 2.02 10900.0 60.02 236.27 .80 8664.9 8600.9 -3401.1 4773.8 224.6 8689.4 8625.4 -3425.2 4816.4 224.7 8714.1 8650.1 -3449.1 4859.0 224.8 8739.1 8675.1 -3472.7 4901.3 224.9 8764.2 8700.2 -3496.7 4943.7 225.0 3401.1 S 3349.9 W 3425.2 S 3386.2 W 3449.1 S 3422.5 W 3472.7 S 3458.8 W 3496.7 S 3494.8 W 10950.0 60.00 237.42 1.99 11001.0 59.93 235.93 2.53 11051.0 59.82 236.62 1.22 11100.0 59.71 236.78 .35 11150.0 58.55 235.82 2.84 8789.2 8725.2 -3520.3 4986.1 225.1 8814.8 8750.8 -3544.6 5029.3 225.2 8839.9 8775.9 -3568.6 5071.8 225.3 8864.5 8800.5 -3591.9 5113.3 225.4 8890.2 8826.2 -3615.7 5155.4 225.5 3520.3 S 3531.0 W 3544.6 S 3567.9 W 3568.6 S 3603.9 W 3591.9 S 3639.3 W 3615.7 S 3675.0 W 11201.0 58.74 236.25 11250.0 58.44 236.33 11300.0 58.67 236.27 .8O .63 .47 8916 . 7 8852 . 7 -3640 . 0 5198 . 2 225 . 6 8942 . 3 8878 . 3 -3663 . 2 5239 . 3 225 . 6 8968 . 3 8904 . 3 -3686 . 9 5281 . 3 225 . 7 3640.0 S 3711.1 W 3663.2 S 3745.9 W 3686.9 S 3781.4 W Final Station Closure: Distance~: 5281.26 ft Az: 225.72 deg. A Gyroda t a D i re c t i ona i Survey for ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, ALASKA Job Number: AK0598GCE466SS Run Date: 17-May-98 08:25:36 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.280000 deg. N Sub-sea Correction from Vertical Reference: 64 ft. AzimUth Correction: Gyro: Bearings are Relative to True North Vertical Section Calculated from Well Head Location CloSUre CalcUlated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A G y r o d a t ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466SS a D i re c t i ona i ALASKA S u r v e yi Page SUBSEA I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet _z' deg. deg. deg./ 100 ft. VERTICAL VERTICAL CLOSURE DEPTH SECTION DIST. AZIMUTH feet feet feet deg. HORIZONTAL COORDINATES feet -64.0 0.00 0.00 0.00 0.0 .28 133.72 .28 100.0 .43 193.34 .27 200.0 .49 186.22 .13 300.0 .47 184.64 .09 0.0 64.0 164.0 264.0 364.0 0.0 -1.6 -2.4 0.0 0.0 .4 133.7 1.1 203.9 1.9 197.0 2.8 192.8 0.0 N 0.0 E .2 S .1 W .8 S .3 W 1.6 S .5 W 2.4 S .5 W 400.0 .52 187.33 .11 500.0 .37 193.60 .24 600.0 .15 242.67 .27 700.0 .16 236.06 .19 800.0 .11 118.20 .22 464.0 564.0 664.0 764.0 864.0 -3 -4 -4 -4 -4 .2 .0 .4 .6 .7 3.6 191.0 4.3 190.7 4.6 191.5 4.8 193.1 4.9 194.0 3.2 S .6 W 4.0 S .8 W 4.4 S .9 W 4.6 S 1.1 W 4.7 S 1.2 W 900.0 .16. 33.23 .21 1000.0 .24 203.08 .24 1100.0 .25 315.51 .13 1200.0 .25 219.95 ~33 1300.0 .24 132.50 .30 1400.0 .15 176.79 .24 1500.0 .15 139.23 .25 1600.0 .32 127.69 .28 1700.0 .29 128.13 .24 1800.0 .18 95.14 .17 964.0 1064.0 1164.0 1264.0 1364.0 1464.0 1564.0 1664.0 1764.0 1864.0 -4 -4 -4 --3~ -4 -4 -4 -4 -5 -5 .6 .3 .0 .9 .1 .4 .5 .7 .1 .3 4.7 193 .8 4.4 195.1 4.2 199.3 4.3 201.6 4.5 199.2 4.6 196.2 4.7 194.5 4.9 190.8 5.2 186.0 5.3 182.1 4.6 S 1.1 W 4.3 S 1.2 W 4.0 S 1.4 W 3.9 S 1.6 W 4.1 S 1.4 W 4.4 S 1.3 W 4.5 S 1.2 W 4.7 S .9 W 5.1 S .5 W 5.3 S .2 W 1900.0 .17 68.04 .09 2000.0 .28 61.41 .13 2100.0 .37 56.99 .10 2200.0 .65 71.08 .33 2300.0 .72 87.12 .28 1964.0 2064 . 0 2164 · 0 2264 · 0 2364.0 -5 -5 -4 -4 -4 .2 .0 .8 .4 .3 5.2 179.0 5.0 175.0 4.8 169.0 4.8 158.8 5.4 146.3 5.2 S .1 E 5.0 S .4 E 4.8 S .9 E 4.4 S 1.7 E 4.3 S 2.9 E A Gyro da t a D i r e c t i ona I Survey ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466SS ALASKA Page SUBSEA I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet _z deg. deg. deg./ - 100 ft. VERTICAL VERTICAL CLOSURE DEPTH SECTION DIST. AZIMUTH feet feet feet deg. HORIZONTAL COORDINATES feet 2400.0 .79 87.12 2500.0 .86 98.77 2600.0 .65 90.02 2700.0 .51 104.90 2800.0 .50 99.78 .19 .28 .40 .37 .28 2464.0 2564.0 2664.0 2764.0 2864.0 -4 -4 -4 -4 -4 .2 .3 .4 .5 .7 6.3 135.3 . 7.5 127.5 8.6 122.7 9.3 120.1 10.2 118.6 4.2 S 4.2 E 4.3 S 5.6 E 4.4 S 6.9 E 4.5 S 7.8 E 4.7 S 8.7 E 2900.0 .52 91.75 3000.0 .55 118.17 3100.0 .86 144.72 3200.0 2.20 164.17 3300.0 4.02 174.60 .12 .25 .47 1.42 1.87 2964.0 3064.0 3164.0 3264.0 3364.0 -4 -5 -5 -8 -13 .8 .0 .9 .4 .7 11.0 116.7 11.9 115.8 13.1 117.6 15.5 124.5 20.6 136.4 4.8 S 9.5 E 5.0 S 10.4 E 5.9 S 11.2 E 8.4 S 12.0 E 13.7 S 12.7 E 3400.0 6.06 179.85 3500.0 7.80 186.55 3600.0 9.26 197.69 3700.0 11.06 209.52 3800.0 13.48 213.36 3900.0 15.46 215.29 4000.0 17.05 219.00 4100.0 19.54 220.33 4200.0 22.39 220.38 4300.0 25.21 220.40 . 1. 2. 2. 2. . 2. 2. 2. 2. O9 94 23 71 64 95 12 48 59 87 3464.0 3564.0 3664.0 3764.0 3864.0 3964.0 4064.0 4164.0 4264.0 4364.0 -22 -34 -49 -65 -83 -104 -127 -153 -182 -215 .5 .6 .1 .2 .6 .9 .9 .2 .4 .8 29.1 149.1 40.8 160.0 54.6 169.3 70.4 178.3 90.2 186.4 114.2 193.0 140.7 198.1 171.0 202.3 206.0 205.7 245.4 208.3 22.5 S 13.0 E 34.6 S 12.1 E 49.1 S 8.8 E 65.2 S 3.2 W 83.6 S 10.0 W 104.9 S 24.4 W 127.9 S 41.9 W 153.2 S 63.1 W 182.4 S .87.9 W 215.8 S 116.4 W 4400.0 28.46 220.77 4500.0 31.76 221.53 4600.0 35.27 220.77 4700.0 38.57 221.69 4800.0 42.13 222.83 2.84 2.78 2.86 2.62 2.70 4464.0 4564.0 4664.0 4764.0 4864.0 -254.3 -298.1 -347.8 -404.5 -467.3 313.2 210.4 364.0 212.2 419.2 213.6 509.5 214.8 607.8 215.9 254.3 S 149.4 W 298.1 S 187.7 W 347.8 S 231.2 W 404.5 S 280.8 W 467.3 S 337.9 W A Gy r o d a t a D i r e c t ional Survey i ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, Job Number: AK0598GCE466SS ALASKA Page SUBSEA I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet _z deg. deg. deg./ 100 ft. VERTICAL VERTICAL CLOSURE DEPTH SECTION DIST. AZIMUTH feet feet feet deg. HORIZONTAL COORDINATES feet 4900.0 45.44 223.34 2.69 5000.0 48.50 223.33 .77 5100.0 49.37 223.00 .80 5200.0 49.98 223.62 .42 5300.0 49.96 223.89 .19 4964 5064 5164 5264 5364 .0 .0 .0 .0 .0 -537.0 -615.9 -699.7 -785.6 -871.5 677.2 216.9 787.3 217.8 900.0 218.5 1014.2 219.0 1166.8 219.6 537.0 S 403.3 W 615.9 S 477.9 W 699.7 S 556.1 W 785.6 S 637.3 W 871.5 S 719.8 W 5400.0 50.83 224.22 1.31 5500.0 50.93 224.31 .83 5600.0 51.00 224.17 .58 5700.0 51.20 224.62 .20 5800.0 51.10 224.27 .17 5464 5564 5664 5764 5864 .0 .0 .0 .0 .0 -957.6 -1046.0 -1134.3 -1222.7 -1311.3 1282.2 220.0 1398.5 220.4 1514.9 220.7 1631.3 221.0 1747.9 221.2 957.6 S 802.8 W 1046.0 S 889.4 W 1134.3 S 975.9 W 1222.7 S 1062.5 W 1311.3 S 1149.1 W 5900.0 51.15 224.22 .25 6000.0 50.92 224.56 .53 6100.0 50.77 224.30 .30 6200.0 50.19 224.08 .67 6300.0 49.54 223.42 .90 5964 6064 6164 6264 6364 .0 .0 .0 .0 .0 -1399.3 -1487.8 -1575.7 -1662.4 -1747.9 1903.0 221.4 2019.3 221.6 2135.6 221.8 2251.0 221.9 2365.5 222.0 1399.3 S 1234.8 W 1487.8 S 1321.3 W 1575.7 S 1407.5 W 1662.4 S 1492.2 W 1747.9 S 1574.3 W 6400.0 48.49 223.35 1.19 6500.0 47.91 222.85 .50 6600.0 47.18 222.65 1.15 6700.0 46.00 221.82 1.17 6800.0 45.14 221.98 .48 6464 6564 6664 6764 6864 .0 .0 .0 .0 .0 -1831.3 -1913.1 -1993.3 -2071.3 -2146.9 2478.4 222.1 2590.2 222.1 2700.7 222.1 2809.3 222.2 2916.0 222.2 1831.3 S 1653.5 W 1913.1 S 1730.0 W 1993.3 S 1804.2 W 2071.3 S 1875.4 W 2146.9 S 1943.4 W 6900.0 44.18 221.67 1.49 7000.0 43.69 221.86 1.52 7100.0 42.67 221.05 1.22 7200.0 42.05 221.55 1.61 7300.0 41.47 222.16 .41 6964.0 7064.0 7164.0 7264.0 7364.0 -2221.0 -2293.5 -2364.1 -2433.0 -2499.1 3022.1 222.1 3125.2 222.1 3193.2 222.1 3295.0 222.1 3393.6 222.1 2221.0 S 2009.6 W 2293.5 S 2073.5 W 2364.1 S 2135.0 W 2433.0 S 2195.3 W 2499.1 S 2254.6 W A Gyro da t a Di re c t ARCO ALASKA INC. WELL: 7-12, 4.5" Location: DRILLSITE 7, PRUDHOE BAY FIELD, ALASKA Job Number: AK0598GCE466SS SUBSEA I N C L AZIMUTH DOGLEG VERTICAL VERTICAL DEPTH SEVERITY DEPTH SECTION feet .z~ deg. deg. deg./ feet feet ' 100 ft. 7400.0 41.54 222.52 1.45 7464.0 -2563.4 7500.0 42.11 223.08 .80 7564.0 -2629.2 7600.0 42.43 223.80 .95 7664.0 -2695.5 7700.0 43.11 224.38 .34 7764.0 -2762.2 7800.0 44.11 225.46 1.04 7864.0 -2829.3 7900.0 44.40 227.52 1.02 7964.0 -2896.0 8000.0 44.46 229.97 2.08 8064.0 -2961.2 8100.0 45.15 231.71 1.74 8164.0 -3024.5 8200.0 45.65 233.86 1.49 8264.0 -3086.1 8300.0 49.79 235-.97 3.24 8364.0 -3149.3 8400.0 54.65 237.03 2.77 8464.0 -3220.7 8500.0 59.56 237.19 2.94 8564.0 -3303.5 8600.0 60.55 237.00 .98 8664.0 -3400.3 8700.0 60.02 236.27 .81 8764.0 -3496.4 8800.0 59.71 236.77 .37 8864.0 -3591.4 8900.0 58.63 236.28 .50 8964.0 -3682.9 8904.3 58.67 236.27 .47 8968.3 -3686.9 i ona 1 Survey Page CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL COORDINATES feet 3460.1 222.1 3559.8 222.1 3661.0~ 222.1 3729.3 222.2 3832.7 222.3 3937.0 222.4 4042.3 222.5 4146.7 222.7 4217.5 222.9 4325.4 223.2 4481.5 223.6 4604.5 224.1 4773.8 224.6 4943.7 225.0 5113.3 225.4 5281.3 225.7 5281.3 225.7 2563 . 4 S 2629.2 S 2695.5 S 2762.2 S 2829.3 S 2896.0 S 2961.2 S 3024.5 S 3086.1 S 3149.3 S 3220.7 S 3303.5 S 3400.3 S 3496.4 S 3591.4 S 3682.9 S 3686.9 S 2314.2 W 2375.2 W 2437.8 W 2502.9 W 2570.3 W 2641.0 W 2714.8 W 2791.7 W 2872.2 W 2961.7 W 3070.0 W 3199.5 W 3348.6 W 3494.4 W 3638.5 W 3775.4 W 3781.4 W Final Station Closure: Distance: 5281.26 ft Az: 225.72 deg. 4. QUALITY CONTROL QUALITY CONTROL REPORT JOB NUMBER: AK0598GCE466 TOOL NUMBER: 772 MAXIMUM GYRO TEMPERATURE: MAXIMUM AMBIENT TEMPERATURE · 91.99 C 95.6 C MAXIMUM INCLINATION: 60.63 AVERAGE AZIMUTH: 225.72 WIRELINE REZERO VALUE: 0 REZERO ERROR/K: N/A CALIBRATION USED FOR FIELD SURVEY: 2020 CALIBRATION USED FOR FINAL SURVEY: 2020 PRE JOB MASS BALANCE OFFSET CHECK: .25 POST JOB MASS BALANCE OFFSET CHECK~: · USED O.O/N/A CONTINUOUS CONDITION OF SHOCK WATCHES .4O UPON ARRIVAL AT RIG: OFF UPON COMPLETION OF SURVEY: OFF UPON RETURN TO ATLAS OFF. BOTTOM LINE COMPARISlONS M.D. INC AZIMUTH TVD NORTHING EASTING FINAL SURVEY 11300 58.67 236.27 8968 -3686.9 -3781.4 1979 GYRO 11300 58.75 233.00 8927 N/A N/A FUNCTION TEST JOB NUMBER: AK0598GCE466 5 Survey stations were collected at the measured depth shown below. The tables show the repeatability of the gyro tool in both inclination and azimuth at one measured depth. INCLINATION M.D. ft 1 2 3 4 5 7500 48.42 48.42 48.42 48.42 48.42 AZIMUTH M.D. ft 1 2 3 4 5 7500 223.4 223.62 223.54 223.52 223.49 5. EQUIPMENT AND CHRONOLOGICAL REPORT EQUIPMENT REPORT JOB NUMBER' AK0598GCE466 DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 772 GYRO SECTION DATA SECTION POWER SECTION coMPUTER A0162 POWER SUPPLY C0111 PRINTER C0083 INTERFACE A0433 ' A0085 A0079 A0143 BACKUP TOOL No. 761 GYRO SECTION DATA SECTION POWER SECTION COMPUTER A0149 POWER SUPPLY C0089 PRINTER C0086 INTERFACE A0349 A0107 A0029 A0055 WIRELINE COMPANY' SCHLUMBERGER CABLE SIZE · 7/32" RUNNING GEAR 2.5" HOUSING W/CENTRALIZERS AND ECCENTRIC BAR TOTAL LENGTH OF TOOL · 27' MAXIMUM O.D.' 2.5 INCHES TOTAL WEIGHT OF i~OL · 250 POUNDS CHRONOLOGICAL REPORT JOB NUMBER: AK0598GCE466 SUNDAY, 5/17/98 15:00 16:00 16:15 18:45 21:15 21:45 22:00 TO LOCATION MU TOOL, RU SCHLUMBERGER PICK UP GYRO, RIH SURVEY TO 11300'. SURVEY OUT. LD TOOL. BD TOOL. TO ATLAS. MONDAY, 5/18/98 07:00 CHECK TOOLS, PROCESS SURVEY. 16:00 TO ANCHORAGE. ARCO ALASKA, INC. P.O. BOX ~Oe360 ANCHORAGE, ALASKA DATE: 8-~t-89 REFERENCE: ARCO CASED HOLE FINALS ?-4 7-29-89 F'RODUCTION F'ROFILE RUN ~, 5' ?-~2 ?-28-89 F'RODUCTION PROFILE RUN 7-23 7-30-89 F'RODUCTION PROFILE RUN ~, 5' 9-8 '?-26-89 INJECTION PROFILE RUN ~2-3 8-4-89 F'ERF' RECORD RUN ~2-7A 8-4-89 PERF RECORD RUN ~4-36 7-2~-89 INJECTION PROFILE RUN ~, 5' ~5-4~ ?-J~-89 PRODUCTION PROFILE RUN ~, 5' ~7-8 7-2?-89 INJECTION F'ROFILE RUN ~, 5' PLEASE SIGN AND RETURN THE ATTACHED COPY AS RECEIPT OF DATA. CAMCO CAMCO CAMCO CAMCO ~'CH CAMCO CAMCO CAMCO DISTRIBUTION CENTRAL FILE£ ~ PHILLIF'$ CHEVRON PB WELL FILES D&M R&D EXTENSION EXPLORATION ~ BPX EXXON ~ ~ STATE OF ALASKA MARATHON ~ TEXACO MOBIL ARCO Alaska, Inc. Prudhoe Ba~, _,~gineering Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 263 4248 Donald F. Scheve Operations Engineering Manager 0RI iNAL July 6, 1989 C. V. "Chat" Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Re: DS 7-12 Approval No. 9-249 Dear Mr. Chatterton: Attached is the Report of Sundry Well Operations detailing work performed on the above-referenced well. Very truly yours, D. F. Scheve DFS/DRR/jp Attachment CC.' T. B. Gray, BP J. Gruber, ATO-1478 PI(DS 7-12) Wl-3 ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany AR3B- 6132-C STATE OF ALASKA ALASK/"-' ~L AND GAS CONSERVATION Cr-"MISSION REPORT oF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate X Plugging Perforate . Pull tubing Alter casing Repair well Other 2. Name of Operator ARCQ Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, AK 99510-0360 4. Location of well at surface 746' FNL, 265' FEL, Sec. 33, T11N, R14E, UM At top of productive interval 1403' FSL, 1548' FWL, Sec. 33, T11N, R14E, UM At effective depth 658' FSL, 663' FWL, Sec. 33, T11N, R14E, UM At total depth 777' FSL, 665' FWL, Sec. 33, T11 N, R14E, UM 5. Type of Well Development Exploratory Stratigraphic Service 6. Datum of elevation(DF or KB) 64 RKB 7. Unit or Property Prudhoe Bay Unit 8. Well number 7-12 9. Permit number/approval number 78-79/9-249 10. APl number 50 - 029-20337 11. Field/Pool Prudhoe Bay Oil Pool feet 12. Present well condition summary Total depth: measured true vertical 11887 feet Plugs(measured) 9242 feet Effective depth: measured 11846 feet true vertical 9219 feet Junk(measured) Casing Length Size Cemented Measured depth True vertical depth Conductor 108' 20" 271 sx Arcticset 108' 108' Sudace 2642' 13-3/8" 5000 sx Arcticset 2706' 2706' Production 11823' 9-5/8" 1600 sx CIG & 300 sx Arcticset 11887' 9242' Perforation depth: measured 11301-11316'; 11389-11400'; 11400-11408'; 11416-11426'; 11446-11454' true vertical 8928-8936'; 8974-8980'; 8980-8984'; 8988-8993'; 9004-9008' Tubing (size, grade, and measured depth) 4-1/2", L-80, 12.6:~, IPC @ 11148' MD; 3-1/2", L-80, 9.3#, IPC @ 11347' MD Packers and SSSV (type and measured depth) BeT HB pkr @ 11168' MD; BeT DB pkr @ 11324' MD; Bal-0 SSSV @ 2203' MD 13. Stimulation or cement squeeze summary Intervals treated(measured) See attached Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data OiI-Bbl Gas-Md Water-Bbl Casing Pressure 0 0 0 2377 1452 0 Tubing Pressure 0 257 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil~ Gas __ Suspended __ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ,~~/~ Title Operations Engineering Manager Form 10-404 Rev 06/15/88 096 D. R. Reimers. 2RE-R205 Date /~'J~7 SUBMIT IN DUPLICATE 7-12 ZONE 2 (TANGO) FRACTURE TREATMENT DESCRIPTION OF CONDUCTED WORK Arco Alaska Inc. conducted a sand propped hydraulic fracture treatment on well 7-12. The fracture treatment consisted of pumping a 500 Bbl. pad followed with 19,600 lbs. of 20-40 Carbolite proppant. An outline of conducted work is included as follows: May 20, 1989 1.) Rigged up Halliburton pump equipment and sand transport. Gelled fracture fluid on location. Installed tree saver. Pressure tested surface lines to 7000 psi. Maintained 3000 psi on 4 1/2" by 9 5/8" annulus during fracture treatment. 2.) Pumped initial fracture treatment as follows: 600 Bbls. 50 lb water gel with delayed crosslinker. 50 Bbls. sand slurry with 1500 lbs. 20-40 Carbolite proppant. 380 Bbls. gelled water flush During the initial fracture treatment the blender failed to ramp the sand. The treatment was switched to manual mode but was immediately shut down as there was not enough fluid to pump the remainder of the job. The 1500 lbs of sand that was pumped was flushed through the perforations before restarting the job. ...May 21, 1989 3.) Loaded and gelled additional water to pump the fracture treatment again. The job was pumped as follows' 500 Bbls. 50 lb, gelled water with 60 lbs/1000 gal oil soluble resin (fluid loss additive) 147 Bbls. 50 lb. gelled water with 19,600 lbs 20-40 Carbolite proppant ramped from 2 to 6 ppg. 161 Bbls. gelled water flush The second treatment successfully placed 17,200 lbs of proppant through the perforations before the treatment was shut down. ARCO Alaska, Inc. Prudhoe Bay Engineering Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 263 4248 Donald F. Scheve Operations Engineering Manager April 3, 1989 C. V. "Chat" Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Re: DS 7-12 Permit No. 78-79 Dear Mr. Chatterton: Attached is the Application for Sundry Approval detailing work to be performed on the above-referenced well. Very truly yours, D. F. Scheve DFS/DRR/jp Attachment cc: BP Exploration, Inc. 3. Gruber, AT0-1478 Pi(DS 7-12)W1-3 WELLS3/128 ARCO A~aska, }nc. is a Subsidiary o! AflanHcRich!ie~dCompa.¥ AR3B .-6132-C ---- STATE OF ALASKA .... AL ,U~, OIL AND GAS CONSERVATION COMM,. .,ON APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon __ Suspend __ Alter casing __ Repair well Change approved program __ Operation shutciown Re-enter suspended well __ ,~ Plugging __ --Time extension ~ Stimulate ~ Pull tubing .__ Variance __ Perforate ~ Other 2. Name of Operator AP. CO a~oo~o 3. Addres-~ ........ P.O. Box 100~60~ Anchoraget AE 99510 4. Location of well at surface 7A~t6o'p FNL, 265' FEL Sec. 33 Tl lN R14E, UM of pro~luctive interval ' ' ' 1403' FSL, 1548' FWL, Sec. 33, TllN, RlbE, UM At effective depth 658' FSL, 663' FWL, Sec. 33, TllN, R14E, UM At total depth 777' FSL, 665' FWL, Sec. 33, TllN, R14E, UM 5. Type of Well: Development Exploratory Stratigraphic Service 6. Datum elevation (DF or KB) 64' RKB 7. Unit or Property name Prudhoe Bay Unit 8. Well number DS 7-12 9. Permit number 78-79 10. APl number 50-- 029-20337 11. Field/Pool Prudhoe Bay Oil Pool feet 12. Present well condition summary Total depth: measured true vertical 11887 feet Plugs(measured) 9242 feet Effective depth: measured 11846 feet Junk(measured) true vertical 9219 feet Casing Length Size Cemented Conductor 80' 20" 271 sx Arctic Set Surface 2642' 13-3/8" 5000 sx Arctic Set Production 11823' 9-5/8" 1600 sx Class G & 300 sx Arctic Set Measured depth ~uevedicaldepth 108' 108' 2706' 2706' 11887' 9242' Perforationdepth: 11301-11316'; measured 11389-11408'; 11416-11426'; 11446-11454' true vertical 9.3f/, IPC @ 8928-8936'; 8974-8974'; 8988-8993'; 9004-9008' Tubing (size, grade, and measured depth) 4~" L-80 12 6~/ IPC @ 11148' MD; 3~" L-80 2 ~ ~ · ~ 2 ~ ~ Packers and SSSV (type and measured depth) HB pkr @ 11168' MD, DB pkr @ 11324' MD; Bal-0 13. Attachments Description summary of proposal 11347 ~ MD SSSV @ 2203' MD Detailed operations program __ BOP sketch 14. Estimated date for commencing operation April 1989 16. If proposal was verbally approved Name of approver Date approved 15. Status of well classification as: Oil ~ Gas __ Suspended __ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. FOR COMMISSION USE ONLY Date Conditions of approval: Notify Commission so representative may witness Plug integrity ~ BOP Test __ Location clearance __ Mechanical IntegrityTest __ Subsequent form required 10- 4t ~z~ ~e6 OOP~ ORIGINAL SIGNED BY ~_.~ff.~_~'-~~?2 ~ ~ 0 v Approved by order of the Commissioner LONNIE C, SMITH Commissioner Form 10-403 Rev 06115/88 WELLS3/128 D. R. Reimers, 265-6105 I Approva, No. ¢_. SUBMIT IN TRIPLICATE Drill Site 7-12 Ivishak Formation Hydraulic Fracture Treatment PRELIMINARY PROCEDURE , , . o . Pressure test 4 1/2" x 9 5/8" annulus. Rig up fracturing service company. Pump propped fracture treatment at 20 BPM using a cross linked water system with approximately 21,000 lbs of 20-40 proppant following pump schedule as outlined below: B. C. D. E. F. G 600 Bbl cross linked water pad 25 Bbl 2 PPG in cross linked water 25 Bbl 3 PPG in cross linked water 25 Bbl 4 PPG in cross linked water 25 Bbl 5 PPG in cross linked water 25 Bbl 6 PPG in cross linked water 165 Bbl cross linked water flush If necessary rig up CTU and cleanout to PBTD. Open well to flow gradually increasing the drawdown to allow proper fracture healing. ,5 4 3 2 COILED TUBING UNIT BOP EOM ! PI, IE NT 1. 5000 PSI 7" WELLHEAD CONNECTOR FLANGE 2. 5,000 PSI 4 1/16" PIPE RAMS 3. 5000 PSI 4 1/6" HYDRAULIC SLIPS 4. 5000 PSI 4 1/6" SHEAR RAMS 5. 5000 PSI 4 1/6" BLIND RAMS 6. 5000 PSI 4 1/16" STUFFING BOX 3 H]REL]NE BOP EOU]PHENT _ I IIIII IIi II 1. 5000 PSI 7" WELLHEAD CONN£CIOR FLANGE 2. 5000 PSI WIRELINE RAMS (VARIABLE SIZE) 3. 5000 PSI 4 1/6" LUBRICA*I*OR 4. 5000 PSI 4 1/6" FLOW TUBE PACK-OFF ARCO ALASKA, F'.O~ BOX ANCHORAGE, ALASKA DATE:. 9-23-88 REFERENCE: ~.-.:.3 8-28-88 %'3-t t 8-27-88 ~ 4-4 8-4 '~-88 , -4 9- t 6-88 ;--5 9- i 8-88 _~t-~ 9-t 7-88 tt t2 9-t7-88 ~ 4 I ~' 9-4-88 ~t 4-t3 8-3t-88 ~ 5-14 8-8-88 5--25 9-t 6-88 ~t ~-.7 8-6-88 ARCO CASED HOLE FINAL COLLAR/PERF SPINNER/TEMP COI_LAR/PERF COLLAR/F'ERF VERT I LOG ,~ :.~ ,~ ~ ........ ~ .,,~.~,~ .~ .... ... COLLAR/PERF COI_LAR/F'ERF COLLAR/F'ERF COLLAR/F'EF<I= COLLAR/PERF COt_LAR/F'ERF COLLAR/PERF COLLAR/PERF CBT CET COLLAR/F'ERF:' F'LEA£E ;~'IGN AND I-~E'rURN THE ATTACHED COF'Y AS RECEIPT OF RECEIVED BY HAVE A NICE DAY! ~ALLY HOFFECKER AT0-t529 TRAN$ ~88582 ~ APF'ROVED_._ .............~ DISTRIBUTION RUN t, 5 · RUN 'i, 5' RUN~' 'i&2, RtJN I, 5' R U N,!; i ,:!,, 2 , RUN ~, 5' RUN t , 5' RUN 3, 5' R U N 2 ~" RUN ~ , ~' RLJN 1 , 5" RUN ~, 5" RUN ~ , 5" RIJN ~, 5' DATA, GEAR GEAR OTIS GEAR F' r" ??l .... ,.= l'i: ATLAS' ATLAS AT L A ~' A'TL. A3' ATI_A$ ATLAS Gl=Al;: GEAR GEAR ~'CH $CH GEAR CENTRAL FILE~ CHEVRON D&M EXTENSION EXF'LORA'FION EXXON MARATHON MOBIL PHILLIPS PB WELL F'ILIES R & D SAPC STATE OF ALA.~'KA TEXACO 1. Status of Well Classification of Service Well OIL [~ GAS [] SUSPENDED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number ARCO Alaska, Inc. 78-79 3. Address 8. APl Number P. O. Box 100360, Anchorage, AK 99510 50- 029-20337 4. Location of well at surface 9. Unit or Lease Name 746' FNL, 265' FEL, Sec.33, T11N, R14E, UM Prudhoe Ba), Unit At Top Producing Interval 10. Well Number 1403' FSL, 1548' FWL, Sec.33, TllN, R14E, UM 7-12 At Total Depth 11. Field and Pool 777' FSL, 665' FWL, Sec.33, TllN, R14E, UM Prudhoe Bay Field 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. Prudhoe Bay 0i 1 Pool RKB 64' ADL 28309 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. I 15. Water Depth, if offshore 116. No. of Completions 03/28/79 04/12/79 04/23/79*I N/A feet MSLI 1 .. 17. Total Depth (MD+TVD) 18.Plug Back Depth (MD+l-VD) 19. Directional Survey 20. Depth where SSSV set I 21. Thickness of Permafrost 11887'MD/9242'TVD l1846'MD/9219'TVD YES [~ NO [] 2204 feet MDI 1900' (Approx) 22. Type Electric or Other Logs Run DIL/SP, BHCS/GR, GR/CNL/CCI.~ Spectralog, Gyro 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" 94.0# H-40 Surf 108' ;~0" 271 sx AS e. mf. 13-3/8" 72.0# N-80 Surf 2706' 17-1/2" 5000 sx AS cmt 9-5/8" 47.0# N-80/S00-95 Surf 11887' 12-1/4" 1600 sx Class G & :300 s~ AS cmt 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, sizeand number) Perforated w/4 spf, 90° phasing SIZE DEPTH SET (MD) PACKER SET (MD) ... 11301 ' -11316 'MD/8928 ' -8936 'TVD 4-1/2" 11:347 ' 11169 ' & 11 .~74 ' Perforated w/4 spf, 120° phasing 11389' -11408 'MD/8974 ' -8984 'TVD 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11416'-11454'MD/8988'-9008'TVD DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Perfs f/ii349;-ii~O~ J9 DDis acta & 27. PRODUCTION TEST ... Date First Production I Method of Operation (Flowing, gas lift, etc.) 8/13/79I F1 owl ng Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS'OILRATIO 8/18/79 9.8 TEST PERIOD I~ 6536 4559 0 :~I 697 Flow Tubing Casing Pressure cALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press~66 24-HOUR RATE ~ 16006 11165 0 27° APl 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. None '~ ' ' " * NOTE: Perforated well 8/14/79. CTU squeeze performed 5/22/87. Perforated and reperforated well 6/21/87 & 9/1/87. Workover, acidize and squeeze performed 7/7/88. ~Dani) WC5/023 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WI::LL COMPLETION OR RECOMPLETION REPORT AND LOG Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE Submit in duplicate 29. i ; .... , , 3O. 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. Top Sad] erochi t 10623 ' 8593 ' N/A Base Sadl erochit 11763' 9173' 31. LIST OF ATTACHMENTS None 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed (~ [/~~ ~/~t~/, , Title Associate Engi ricer Date ~' ~4 ~ INSTRUCTIONS General' This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation' Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". Form 10-407 STATE OF ALASKA ALASr,,A OIL AND GAS CONSERVATION COMh,,,$SION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown [] Stimulate [] Plugging ~ Perforate ..~ Pull tubing Alter Casing ~J Other ~ WORKOVER 2. Name of Operator 5. Datum elevation (DF or KB) ARCO Alaska, Inc. RKB 64' Feet 3. Address 6. Unit or Property name P.O. Box 100360, Anchorage, AK 99510-0360 Prudhoe Bay Unit 7. Well number 7-12 4. Location of well at surface 746' FNL, 265' FEL, Sec.33, T11N, R14E, UM At top of productive interval 1403' FSL, 1548' FWL, Sec.33, TllN, R14E, UM At effective depth 658' FSL, 663' FWL, Sec.33, TllN, R14E, UM At total depth 777' FSL, 665' FWL, 5ec.33, T11N, R14E, UM 8. Approval number 8-378 9. APl number 50--029-20337 10. Pool Prudhoe Bay Oil Pool 11. Present well condition summary Total depth: measured true vertical Effective depth: 11887'MD 9242'TVD Casing Conductor Surface Production measured 11846'MD true vertical 9219'TVD Length Size 80' 20" 2706' 13-3/8" 11887' 9-5/8" feet Plugs (measured) None feet feet Junk (measured) Perf Gun ~ 11819' feet (Length = 27') Cemented Measured depth 271 sx Arctic Set 108'MD 5000 sx Arctic Set 2706'MD 1600 sx Class G & 11887'MD 300 sx Arctic Set ~ue Vertical depth 108'TVD 2706'TVD 9242'TVD Perforation depth: measured true vertical 8928'-8936' 11301 '-11316', 11389'-11408', 11416'-11454' , 8974'-8984', 8988'-9008' Tubing (size, grade and measured depth) 4-1/2", L-80, tbg w/tail @ 11347' Packers and SSSV (type and measured depth) HB pkr ~ 11169', DB pkr @ 11324', Bal-O SSSV ~ 2204' v £: 12. Stimulation or cement squeeze summary Intervals treated (measured) Perfs f/11349'-11370' Treatment description including volumes used and final pressure 19 bbls ~i~ & 1~4 sx Cla.~s G 13. N/A '~ia$l(,a Oil & Representative Daily Average Production or In(ection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation Subsequent to operation (workover Well History) 14. Attachments Daily Report of Well Operations ~ Copies of Logs and Surveys Run ~ 15. I hereby certify that the foregoing is true and correct to the best of my knowledge ,~"~ /43 ,- ~ ~ Form 10-404 Rev. 12-1-85 Title Associate Engineer Date ?-2.2-'~ Submit in Duplicate (Bani) SW03/020 ARCO Oil and Gas Company Well History - Initial Report - Daily Instructions: Prepare and submit the "Initial Report" on lhe first Wednesday after a well is spudded or workover operations are started. Daily work prior to spudding should be summarized on the form giving inclusive dates only. District ARCO Alaska, Inc. Field PRUDHOE BAY FIELD Auth. or W.O. no, AS2297 ICounty. parish or borough NORTH SLOPE BOROUGH Lease or Unit ADL: 28309 Tit~e WORKOVER IState AK DS 7-12 API: 50-029-20337 Operator ARCO IWell no. I ARCO w i. iHour 0500 I 22.0000 I Prior status if a W,O, HRS Spudded or W.O. begun ACCEPT Date and depth as of 8:00 a.m. 06/25/88 ( TD:11887 PB:11846 SUPV:RO 06/26/88 ( TD:11887 PB:11846 SUPV:RO 06/27/88 ( TD:11887 PB:11846 SUPV:RO 06/28/88 ( TD:11887 PB:11846 SUPV:RO 06/29/88 ( TD:11887 PB:11846 SUPV:RO 06/30/88 ( TD:11887 PB:11846 SUPV:MD IDate 06/24/88 Complete record for each day reported WESTWARD RIG 1 CIRC OUT CRUDE & GAS MW: 8.3 SEAWATER ACCEPTED RIG @ 0500 HRS, 6/24/88· RU TO KILL WELL. PULL BPV. BULLHEAD 235 BBL OF 8.3 PPG SEAWATER DOWN TBG. DISP W/ 8.3 PPG SEAWATER. MONITOR WELL. SET BPV. ND TREE. ATTEMPT TO REPAIR THREADS ON HCR. NU BOPE. TEST SAME TO 5000 PSI. PULL TEST DART AND BPV. WELL KICK. SHUT IN WELL. CIRC OUT CRUDE AND GAS. DAILY:S38,744 CUM:$38,744 ETD:S38,744 EFC:$798,000 TIH W/ 3-1/2" DP MW: 8.3 SEAWATER CIRC OUT GAS AND CRUDE. OBSERVE WELL. MU TRISTATE SPEAR AND SPEAR HCR. LD HCR AND SPEAR. LD TBG. RU FLOOR AND LOAD PIPE SHED. INSTALL PIPE RAMS AND TEST PLUG. TEST BOPE TO 5000 PSI. HYDRIL TO 2500 PSI. MU TRI-STATE 8-1/8" OVERSHOT AND TIH. DAILY:S33,857 CUM:$72,601 ETD:S72,601 EFC:$798,000 POOH MW: 8.3 SEAWATER TIH W/ OVERSHOT AND 5-1/8" GRAPPLE. PU KELLY AND TAG FISH AT 10165'. LATCH UP AND ROTATE OUT OF K-ANCHOR. POOH. SLIP DRILLING LINE. POOH. LD OVERSHOT AND MU DOUBLE BOWL OVERSHOT. TIH. PU KELLY AND LATCH ONTO FISH. ROTATE OUT OF K-ANCHOR. POOH. DAILY:S33,829 CUM:$106,430 ETD:S106,430 EFC:$798,000 POOH W/PACKER MW: 8.3 SEAWATER POOH WITH FISH AND LD SAME. MU PRT & TIH. CIRCULATE GAS OUT. POOH WITH PACKER AND TAILPIPE ASSY. LD SAME. CUT AND SLIP DRILL LINE. DAILY:S45,999 CUM:$152,429 ETD:S152,429 EFC:$798,000 POOH W/GR/JB MW: 8.3 SEAWATER FINISHED LAYING DOWN TRI-STATE TOOLS AND TAILPIPE ASSY. RIH W/ 8-1/2" GR/JB. UNABLE TO GET PAST 8710'. POOH; HIT OBSTRUCTION @ 8350'. WORKED TO 8710' WLM. NO RECOVERY IN JB. TIH WITH BIT AND SCRAPER TO 11830' POOH. RECOVER 2 BLADE SECTIONS OF CENTRALIZER. RU DRESSER AND RIH WITH 8-1/2" JB/GR. TAG UP @ 10600'. RIH TO 11225'. POO~ RECOVERED SOME PIECES OF METAL OFF PKR. RIH WITH JB/G~ ~ 11255'. POOH· DAILY:S27,783 CUM:$180,212 ETD:S180,212 EFC:$798,000 CBU @ 11429' MW: 8.3 SEAWATER POOH WITH GR/JB RIH WITH MILL AND SCRAPER. CIRCULATE; MILL PLUGGED. POOH. CLEANED OUT MILL. RIH. WASHED AND REAMED TO 11429'. CIRC. BOTTOMS UP. DAILY:S33,866 CUM:$214,078 ETD:S214,078 EFC:$798,000 The above is correct F r form preparation e~ distribution, see Procedures Manu.~__Section 10, Drilling, Pages 86 and 87. '7-20 ASSOCIATE ENGINEER ARCO Oil and Gas Company Daily Well History--Interim Instructions: This form is used during drilling or workover operations. If testing, coring, or perforating, show formalion name in describing work performed. Number all drill stem tests sequentially. Attach description of all cores. Work performed by Producing Section will be reported on "lnlerlm" sheets until final completion. Report official or representative test on "Final" form. 1) Submit "Interim" sheets when filled out but not less frequently than every 30 days, or (2) on Wednesday of the week in which oil string is set. Submit weekly for workovers and following setting of oil strin§ until completion. ICounty or Parish IState District I NORTH SLOPE BOROUGH ARCO Alaska, Inc. AK IILease or Unit IWell no. Field I DS 7-12 PRUDHOE BAY FIELD I Complete record for each day while drilling or workover in progress WESTWARD RIG 1 Date and deptl3 as of 8:00 a.m. 07/01/88 ( TD:11887 PB:11846 SUPV:MD 07/02/88 ( TD:11887 PB:11846 SUPV:MD 07/03/88 ( ~) TD:11887 PB:11846 SUPV:MD 07/04/88 ( 1~ ) TD:11887 PB:11846 SUPV:MD 07/05/88 ( 1] TD:11887 PB:11846 SUPV:MD 07/06/88 ( 12 TD:11887 PB:11846 SUPV:MD TESTING CASING MW: 8.3 SEAWATER CBU. PUMPED HEC SWEEP. POOH. CUT AND SLIP DRILL LINE. POOH WITH 8-1/2" MILL. RU DRESSER ATLAS. RIH WITH 8.50" GR & JB TO 11415'. POOH. RIH WITH BAKER K-1CMT BRIDGE PLUG & SET @ 11380' ELM. POOH. RD DRESSER. TIH WITH FO CLOSING FINGERS AND RTTS. CHECK FO COLLARS; TESTED CASING TO 2500 PSI F/ 2528' POOH. LD CLOSING FINERS. TIH WITH RTTS TO 11150' TESTED 9-5/8" CASING TO 2500 PSI. DAILY:S65,978 CUM:$280,056 ETD:S280,056 EFC:$798,000 RIH MW: 8.3 SEAWATER POOH W/ RTTS. RIH W/ 2-7/8" STINGER. SPOT 19 BBLS ACID. DISP INTO FORMATION: SPOT CMT PLUG W/184 SX (38 BBLS) CLASS G. SQZ CMT AWAY. HOLD PRESS. POOH. LD 2-7/8". PU 8-1/2" BIT AND RIH. DAILY:S62,031 CUM:$342,087 ETD:S342,087 EFC:$798,000 CIRCULATE HOLE CLEAN MW: 8.3 SEAWATER SERVICED RIG. TIH WITH 8-1/2" BIT. BREAK CIRCULATION. WOC. TIH. TAGGED CMT @ 10916'. DRILLED HARD CMT TO 11398' (DPM). TAGGED CMT RETAINER. PUMPED HEC PILL TO CLEAN HOLE. DAILY:S28,809 CUM:$370,896 ETD:S370,896 EFC:$798,000 TOH MW: 8.3 SEAWATER CIRCULATE HEC SWEEP TO CLEAN HOLE. TESTED SQUEEZE TO 1000 PSI - OK. DRILLED BRIDGE PLUG. MILLED JUNK. CLEANED OUT TO 11816' MIXED HEC PILL TO CLEAN HOLE. DISPLACED HOLE WITH CLEAN SEAWATER. POOH WITH 8-1/2" BIT. DAILY:S28,152 CUM:$399,048 ETD:S399,048 EFC:$798,000 POOH MW: 8.3 SEAWATER SERVICED RIG. TIH. CUT AND SLIP DRILLING LINE. TIH TO 11399' WITH MILL & SCRAPER. POOH. RU WESTERN ATLAS. RIH. PERFORATED 11301'-11316' WITH 4 SPF, 90 DEGREE PHASING. RIH WITH 8.50" JB/GR; ON 4TH ATTEMPT WAS ABLE TO GET DOWN WITH 8.35" GR. RIH WITH 9-5/8" PACKER AND SET @ 11324'. POOH. DAILY:S32,658 CUM:$431,706 ETD:S431,706 EFC:$798,000 RIH W/ COMPL ASSY MW: 8.3 SEAWATER POOH W/ WL. TIH W/ 3-1/2" DP. DISP HOLE W/ SEAWATER AND C-193. POOH. LDDP. CHANGE RAMS. PU COMPL ASSY. RIH W/ 4-1/2" TBG. DAILY:S68,040 CUM:$499,746 ETD:S499,746 EFC:$798,000 The above is correct For form preparation/gfnd distribution see Procedures Marl~!~l Section 10, Drilling, Pages 86 and 87 IDate ITitle ASSOCIATE ENGINEER ARCO Oil and Gas Company Daily Well History-Final Report Instruclions: Prepare and submit the "Final Report" on the first Wednesday after allowable has been assigned or well is Plugged, Abandoned, or Sold. "Final Report" should be submitted also when operations are suspended for an indefinite or appreciable length of time. On workovers when an official test is not required upon completion, report completion and representative test data in blocks provided. The "Final Report" form may be used for reporting the entire operation if space is available. t Accounting cost center code District State ARCO Alaska, Inc. /AK / Field ICounty or Parish NORTH SLOPE BOROUGH Lease or Unit AD'L: 28309 Title WORKOVER PRUDHOE BAY FIELD Auth. or W.O. no. AS2297 Operator ARCO Spudded or W.O. begun ACCEPT Date and depth as of 8:00 a,m. DS 7-12 JWell no.__ Old TD Released rig Classifications (oil, gas, etc.) 07/07/88 ( 1 TD:11887 PB:11846 SUPV:RO 07/08/88 ( 1 TD:11887 PB:11846 SUPV:RO API: 50-029-20337 J A.R.Co. W.l.22. 0000 --~°tal number of wells (active or inactive) on thisj Host center prior to plugging and ~bandonment of this well 06/24/88 ! 0500 HRS Complete record for each day reported WESTWARD RIG 1 DISPLACE DIESEL MW: 8.3 SEAWATER FINISHED RIH WITH 4-1/2" COMPLETION ASSEMBLY (CAMCO BAL-O SSSV @ 2204', BOT 'HB' PKR @ 11169', BOT 'DB' PKR @ 11324', TAIL @ 11347'). LAND TUBING HANGER. RILDS. PRESSURED UP ON TUBING AND SET PACKER. SOS SHEARED WITH 2900 PSI (WAS PINNED FOR 3800 PSI). BACKED OUT LANDING JT & LD SAME. SET B?V. ND BOPE. NU TREE AND TESTED TO 5000 PSI. TESTED PACKOFF TO 5000 PSI. DISPLACED WITH DIESEL TREATED WITH C-120 TO 2780'. DAILY:S183,031 CUM:$682,777 ETD:S682,777 EFC:$798,000 RIG RELEASED MW: 8.3 SEAWATER DISP WELL W/ DIESEL TREATED W/ C-120 TO 2780'. INSTALL BPV. RIG RELEASED AT 0800 HRS, 7/7/88. DAILY:S2,270 CUM:$685,047 ETD:S685,047 EFC:$798,000 INew TD J Pi] Depth Date JKind of rig Type completion (single, dual, etc.) Producing method Official reservoir name(s) Potential test data The above is correct , .. Well no. Date Reservoir Producing Interval Oil or gas Test time Production Oil on test Gas per day ..... Pump size, SPM X length Choke size T'.P. ~ lC.P, Water % GOR Gravity Allowable Effective date corrected _. Signature J Date For form prepara~n and distribution, see Procedures ~tnual, Section 10, Drilling, Pages 86 and 87. ASSOCIATE ENGINEER FROM S~A~ OF AL~$EA B,O,P.E, ln~peat:Lon Etpor~. _.-.- ~.p~...,~.~v._.~__,.:_(.')/, .:~,.~ ~ ....... ~ ._ ......... -~. - aL' .'' CeeLn~ ~.~ ! ......... ... ~_~f3 Preneu~e After ClolUfe /..,: .(._z__ PwiI ......... ___ ~.., d~ ~.f~,~.c~'.~,.:. ''~ "', ':"_.Z_. p-s,_.. '~ ,,, _ ..... ............... ................ h,,,~, m. W~_a.~.....Sb~ .......... . ...... .. V: lua~ Audio · ..... q.' ........... It i.,- · - . .......... iiiii 'Ill . . I #m I .__ ARCO ALASKA: .TNt'.'... P ~ 0 ~ BOX t (-)¢:)7,6~ ANCHORA.[~E, ALASKA 995~0 DATE: 7-7-88 Fi,'. E I::' E R F.:i N C E:A R C 0 C A S' F.'.-. D H CI L E F° '[ N A I... .~ 'l ~,.o_ ' '?' .... 4 _.,.,° ...:° C .f.} I ................. { . A F;.i / P [!:~ {:;,', I:° fl I:i' A "l" iii fTI N! Fi.' I J f'.,}. '1 ':::," ,' ,:. 4 '7 .... 4 - 8 8 C 0 I... I... A R ./F' 17< F,'. F- 0 ...... R A T I 0 N F;: t.I N 5 , ~';'," F:'I...EA,?F /";'.!:[;N AN[) RF."T'URN '1"HIE AT-f'ACHE~D COF'Y A,S' F;,'I:!:.F.'.'E!i'I~I::"i" (iF:' DATA,. R E C E ! ',,,' F.!7 !') B Y ........................................................ T IR A N ,".-". -$':,..q 84 ':54 Z"") A 1::' P I';'. E.I VIE ;f) .......................... .~ ............................................ T.) ]' ,."i: '1' I:;,' i[ B ~ .I 'T° 17 Ci ?'~ Oil 8, Gas Cons. Commission F;: F:' F' F' F;.' I::' N r: F' ·f.', F.;: f': f'~ £': ~.~ .':7. r.:' F., H fi I F' I:' T fJ ¢~ ! !:;: 1:: ,"'.' !::' T ~,! F' T':, R Y ........................ .......... ~ ...... ~ I~"' '] ...... ~'~ ......... '"" ' ' ' ~ '~ ~ \ '" ~ .-.,..,,,.:. ,.,, ,,,,.,.~.-. ~,~,,,. /1 r~.~, :,~ ~ ~;cr'~ ) T ~;: ¢, ~..:. :":: :~ ?, R ::5. '~; :? ~"" / - Ai~sk~ Oil & Gas. Cons. Commission '",':"t',"i '.:f' .~' T-R', T FI i I,T T, fi,iq STATE OF ALASKA '-~ ALASi.. , OIL AND GAS CONSERVATION COMI~,...,SION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon [] Suspend ~ Operation Shutdown [] Re-enter suspended well ~ AIt.e.j' casing ~T Time extension ~ Change approved program ..~ Plugging [] Stimulate ~ Pull tubing ~Amend order ~ Pe~rt~oor~te/~. Other 2. Name of Operator ARCO Alaska, Inc. 3. Address P. 0. Box 100:360, Anchorage, AK 99510-0:360 4. Location of well at surface 746' FNL, 265' FEL, Sec. At top of productive interval 1403' FSL, 1548' FWL, Sec. :33, T11N, R14E, UM 33, T11N, R14E, UM 5. Datum elevation (DF or KB) RKB 64 ' 6. Unit or Property name Prudhoe Bay Unit 7. Well number 7-12 8. Permit number 78-79 At effective depth 9. APl number 658' FSL, 663' FWL, Sec. 3:3, T11N, R14E, UM 50-- 029-20:337 At total depth 10. Pool 777' FSL, 665' FWL, Sec. :3:3',T11N, R14E, UM Prudhoe Bay Oil Pool feet 11. Present well condition summary Total depth: measured true vertical 11 887 'MD feet Plugs (measured) None 9242 ' TVD feet Effective depth: measured 11 84 6'MD true vertical 921 9 ' TVD Casing Length Size Conductor 80' 20" Surface 2706' 13-3/8" Production 11887' 9-5/8" feet Junk(measured) Perf Gun ~ 11819' feet (Length = 27') Cemented Measured depth 271 sx Arctic Set 108'MD 5000 sx Arctic Set 2706'MD 1600 sx Class G 11887'MD Rue Verticaldepth 108'TVD 2706'TVD 9242'TVD Perforation depth: measured true vertical 11:349'-11370', 11389'-11408', 11416'-11454' 8953'-8964', 8974'-8984', 8988'-9008' Tubing (size, grade and measured depth) 5½" tubing w/tail ~ 10345' Packers and SSSV (type and measured depth) ' Baker SAB packer @ 10215', Camco Bal-O SSSV @ 2220' 12.Attachments Description summary of proposal.,~ Detailed operations program [] BOP sketch/~,. 13. Estimated date for commencing operation June 15, 1988 14. If proposal was verbally approved Name of approver O~O1~1~,~~'"~mm"~"';"""~"~'~`"'~ 'Date approved 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed Hof,f~ Title Associate Engineer ( JG-SA3/1 O0 ) Commission Use Only Conditions of approval Notify commission so representative may witness [] Plug integrity [] BOP Test [] Location clearance Approved Copy /~'/~. ,.Hh~ Approved by Commissioner Form 10-403 Rev 12-1-85 IAppr°valN°' .~); -~ 7 ~ the commission Date S~bmi't' in triplicate 4 APPLICATION FOR SUNDRY APPROVALS PBU DS 7-12 PROCEDURE SUMMARY OBJECTIVE: Retrieve the leaking 5-1/2" tubing and packer assembly. Squeeze the perforations from 11206'-11370'. Clean out and reperforate the interval from 11301'-11316'. Install a 3-1/2" straddle packer completion with GLMs. The completion will isolate perforations from 11206' to l1316'MD. 1) MIRU WW1. RIH and cut tubing. Circulate seawater to kill well. 2) Set BPV. ND, NU, test, pull BPV. 3) Spear 5-1/2" tubing below tubing hanger. Pull and LD 5-1/2" tubing. 4) Retrieve PBR and K-anchor. 5) Mill out and retrieve SAB packer. 6) Set retainer at ±11380'. 7) Cement squeeze all perforations above the retainer. 8) Test casing to 2500 psi. Clean out cement and fill to ±11600'. 9) RIH with a casing scraper to ±11380'. 10) RU wireline. Reperforate from 11301'-11316'. 11) Run 3-1/2" x 9-5/8" permanent packer assembly. Set packer on workstring below 11316' and leave tailpipe above 11349'MD. Run Gamma Ray log to put packer on depth. 12) Run 3-1/2" tubing string with hydraulic set retrievable packer. Run steel blast joints and a GLM between packers. Set upper packer above l1206'MD. 13) Test tubing to 3000 psi, annulus to 2500 psi. 14) Set BPV. ND BOPE. NU tree and test. 15) Release rig. Anticipated bottomhole pressure: 3685 psi @ 8800'TVD (8.05 ppg EMW) Workover fluid: 8.5 ppg seawater LWK/40b 5/5/~ ANNULAR PREVENTER 6 BLIND RAHS 4 TUBIN$ HEAD 1. 13-3/8" CASING HEAD 2. 9-5/8" CASING HEAD 3. 5000 PSI TUBING HEAD 4. 13-5/8" - 5000 PSI BLIND RAMS 5. 13-5/8" - 5000 PSI PIPE RAMS 6. 13-5/8" - 5000 PSI ANNULAR ACCUMULATOR CAPACITY TEST 1 . CHECK AND FILL ACCUMULATOR RESERVOIR TO PROPER LEVEL WITH HYDRAULIC FLUID. 2. ASSURE THAT ACCUMULATOR PRESSURE IS ~;000 PSI WITH 1500 PSI DOWNSTREAM OF THE REGULATOR. ;~, OBSERVE TIME, THEN CLOSE ALL UNITS SIMULTANEOUSLY AND RECORD THE TIME AND PRESSURE REMAINING AFTER ALL UNITS ARE CLOSED WITH CHARGING PUMP OFF. 4. RECORD ON THE IADC REPORT. THE ACCEPTABLE LOWER LIMIT IS 45 SECONDS CLOSING TIME AND 1200 PSI REMAINING PRESSURE. BOP STACK TEST 1. FILL BOP STACK AND MANIFOLD WITH ARCTIC DIESEL. 2. CHECK THAT ALL HOLD-DOWN SCREWS ARE FULLY RETRACTED. PREDETERMINE DEPTH THAT TEST PLUG WILL SEAT AND SEAT IN WELLHEAD. RUN IN LOCK-DOWN SCREWS IN HEAD. CLOSE ANNULAR PREVENTER AND CHOKES AND BYPASS VALVES ON THE MANIFOLD. TEST ALL COMPONENTS TO 250 PSI AND HOLD FOR 10 MINUTES. 5. INCREASE PRESSURE TO 2500 PSI AND HOLD FOR 10 MINUTES. BLEED TO ZERO PSI. 6. OPEN ANNULAR PREVENTER AND CLOSE TOP SET OF PIPE RAILS. 7. INCREASE PRESSURE TO 5;000 PSI AND HOLD FOR 10 MINUTES, O. CLOSE VALVES DIRECTLY UPSTREAM OF CHOKES, BLEED DOWNSTREAM PRESSURE TO ZERO PSi TO TEST VALVES. TEST REMAINING UNTESTED MANIFOLD VALVES, IF ANY, WITH 5000 PSI UPSTREAM OF VALVE AND WITH ZERO PSI DOWNSTREAM. BLEED SYSTEM TO ZERO PSI. 9, OPEN PIPE RAMS. BACKOFF RUNNING dT AND PULL OUT OF HOLE. CLOSE BLIND RAMS AND TEST TO 5000 PSI FOR 10 MINUTES. BLEED TO ZERO PSI. 10. OPEN BLIND RAHS AND RECOVER TEST PLUG. MAKE SURE HANIFOLD AND LINES ARE FULL OF ARCTIC DIESEL AND ALL VALVES ARE SET IN THE DRILLING POSITION. 11. TEST STANDPIPE VALVES TO 5000 PSI. 12. TEST KELLY COCKS AND INSIDE BOP TO 5000 PSI WITH KOOMEY PUMP. 13. RECORD TEST INFORMATION ON BLOWOUT PREVENTER TEST FORM. SIGN AND SEND TO DRILLING SUPERVISOR, l zl. PERFORM COMPLETE BOPE TEST ONCE A WEEK AND FUNCTIONALLY OPERATE BOPE DAILY. dE) NOVEI"IBER 21, 1986 ARCO Alaska, Inc. Prudhoe Bay ~ngineering Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 263 4248 Donald F. Scheve Operations Engineering Manager March 25, 1988 C. Vo "Chat" Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Re: DS 7-12 Approval No. 435 Dear Mr. Chatterton: Attached is the Report of Sundry Well Operations detailing work per- formed on the above-referenced well. Very truly yours, D. F. Scheve DFS/JMH/jp Attachment cc: Standard Alaska Production Company J. Gruber, AT0-1478 Pi(DS 7-12)W1-3 ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompa.y AR3B G132--C STATE OF ALASKA - ALASt,., OIL AND GAS CONSERVATION COMK ,SION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown C Stimulate © Plugging ~ Perforate ~ Pull tubing Alter Casing ~ Other .~ . Name of Operator ARCO Alaska~ ]:nc, Address P. O. Box 100360, Anchorage, AK 99510 Location of well at surface 746' S & 265' W of NE cr, Sec. 33, TllN, R14E, UM At top of productive interval 1403' N & 1548' E of SW cr, Sec. 33, TllN, R14E, ~ At effective depth At total depth 777' Iq & 665' E of SW ct, Sec. 33, TllN, R14E, UM 5. Datum elevation(DF or KB) 64' RKB 6. UnitorPropertyname Prudhoe Bay Unit 7. Well number 7-12 Feet 8. Approval number .43~ 9. APl number 50-- 029-20337 10. Pool Prudhoe Bay 011 Pool 11. Present well condition summary Total depth: measured 11887 feet true vertical 9242 feet Effective depth: measured 11846 feet true vertical 9219 feet Casing Length Size Conductor 108' 20" Intermediate 2706 ' 13-3/8" Production 11887 ' 9-5/8" Plugs (measured) Junk (measured) Cemented Measured depth True Vertical depth 271 sx AS 108' 108' 5000 sx AS 2706' 2706' 1600 sx Class G 11887' 9241' Perforation depth: measured 11349-11370', 11389-11408', 11416-11454' true vertical 8953.1-8964.1', 8974.1-8984', 8988.2-9008.1' Tubing (size, grade and measured depth) 5½ @ 10345' MD Packers and SSSV (type and measured depth) Camco Bal-0 SSSV @ 2226' MD; Baker SAB packer @ 10215' MD 12. Stimulation or cement squeeze summary Intervals treated (measured) Attached Treatment description including volumes used and final pressure 13. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 1700 12750 0 -- 1300 417 0 ~bing Pressure 1700 psJ. g 1900 psig 14. Attachments Daily Report of Well Operations [] Copies of Logs and Surveys Run L-i~ 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Form 10-404 Rev. 12-1-85WELLS2/l13 J. M, Heusser, 263-4266 Submit in Duplicate~ Drill Site 7 - 12 Coiled Tubing Unit Cement Squeeze Gas Shut Off 5/22 - 23/87 Rig up coiled tubing unit. Pump 37 bbl xylene pre flush. Pump 47 bbls of cement. Obtained 1300 psi squeeze pressure and held for 1 hour. Contaminated cement. Jetted out contaminated cement. Shut in well. 6/21/87 Perforate. Reference Log · (BHCS 4/13/79) 11349 - 11370 4 spf 11389 - 11408 4 spf 11416 - 11454 4 spf Well would not flow. 6/22/87 Nitrogen lift well to flow. Cement squeeze broke down after 1 week. 8/8/87 Rig up coiled tubing unit. Acid wash perforations with the following volumes plus additives: 43 bbls Xylene 38 bbls 12% HCI 41 bbls 6% HC1:1.5% HF 38 bbls 12% HCI 8/9/87 Pump 60 bbls of cement through coiled tubing. Obtained 1800 psi squeeze pressure and held for1 hour. Contaminated cement. Shut in well overnight. 8/1 O/87 9/1/87 Jetted out contaminated cement. Shut in well. (~,12,/Perforate. Reference Log(BHCS 4/1~79) 11349 -11370 4 spf 11389- 11408 4 spf 11416 -11454 4 spf Attempt to flow well. 9/4/8 7 Nitrogen lift well to flow. I=' .. 0., BO,v, i ~.,(::,S6~,-~ ~ ANCHL]RA~E, ~ I...A.., k' A .... G ARCO CAXED H~I.F FINAl.. PLEASE ,?TqN AND I.?ETItFi'~...,:F~4Ki~,'~D l,":nPY r:~.=.nr=.TPT R' CEIVEO F'!.'.'-. b G Y ~ENNE'TT A 'T 0 - 'l. 5 '"" ,=. o .- ,-':h ,c' r:,, c,,: Ft.. V I.=.: I) T) '[ .'? 'T r.;., T T:~ 1 t T T F,, N FI F DATA .. ['t. A H f': FI f'. A H f": F! F: A H f". Fl RAHP. I'i [". ,'~ H F: I"1 F.'AMEFI F'. A H F'. n r': A H F.: f'i f':AH[':F~ P. A M P. I'] ARCO ALA,~KA, .T. NC P., 0~, BOX ANCHORAGE., ALA~K A 99~i DATE' 1-.~-88 REFERENCE: ARCO CASED HOLE F'~NAI,., t :5 .... '2i i 2-27-87 t 6--'7 t .... --'.,:. 8--'87 ,~'F' INNER' TEMPERATURE .S~F' t:NNF. F,'. TI:.HF E.R. ATI..IRE PUMP-IN TEMPERA'FI.IRE RUN ~. 5" R'.I.IN t, '5 · Ri.IN t, !5" F'I.[:-.A,.~E ,~I.F,N AND RETURN THE ATTACHED COPY A,S' F.'ECET. F'T r!F DATA,. RECEIVED BY HAVE A NICE DAY! PEGGY BENNETT A'TO--t~29 .\' C H 2CH .? C H " CENTRAl... F:I:I 1:'7.,~.' ~' CHEVRON -,-'"'EXTEN,~:I:I..-IN EXPI...ORATION ~-,- EXXON MARATHON ~,~ MOB. I I... F'H I I...I. IF'$ F'B WELt.. FII...ES' R ,..*,. P ,.S' A F' C YTATE OF AI...A,.~KA TEXACO 9 9 5 ~ () · ,.-.. ? D A "f I:!; ~ (:)"" ''~ c ...., .... R E F:' E R I!:'N C: E ' A R C C) C a .'.-;' e d Hol. e I::'inal AT I.a.s' At' las' A t I. a .'..;' At' las' AS I.a.s' ATlas' A T I a s' F:' [. e a s' e ~:; J (:j 'ri a 'nd 'r' e 't u.'c n '1' h e a t: -t a c: h ecl c o I:) y a .s' I" e c: e J p ~ o 'f cl a t; a ,. ~:~'~.:~,(::~,, v~.~:~ ..;.',,, ............................................................ :'"~ ' NOV - ~ 1987 ~ I--lAVE A NICE DAY! ( / " ~ ~aska Oil & Gas Cons. Commission R e c c, r' d .~x F:' r o c e.s' .~; o r' Anchorage ATC)-~ 529 .DIS'TF;;IBUT ! ARCO ALaska, loc, F-"~O~ Box i00:360 A)~chor age, ALaska 995i CI Rul~ t, 5' ~c'~ h PLea.se .sig)~ and retu)")l the attached copy a.s receip'~ of dat,'.~, Received By HAVE A NICE DAY! Ro~anne Peek ATO-t 529 TRAN$ ~87342 Approvecl ka Oi~ & Gas Cons. Anchorage DISTRIBUTION ~.~' Ch e¥?o~"~ ~.'"' E×'ten~ion Exi~Loration Mara'~hon · ,~ Mob i L F'hi LLJp:F F'B Well Fi Le~' R & I) · ~,, $oh Jo ,~ $tale of ALaska STATE OF ALASKA ALASK.. OIL AND GAS CONSERVATION COMrv,....SION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon [] Suspend [] Operation Shutdown [] Re-enter suspended well [~;J Alter casing [17] Time extension E3 Change approved program [] Plugging [] Stimulate ~i~ Pull tubing [] Amend order FJ Perforate I~l Other 2. Name of Operator ARCO Alaska, Tnc. 3. Address P. O. Box 100360~ Anchorage, Alaska 99510 4. Location of well at surface 746'S & 265'W of NE Cr. Sec. 33, TllN, R14E, UM At top of productive interval 1403'N & 1548'E of SW Cr. Sec. 33, TllN, R14E, UM At effective depth At total depth 777'N & 665'E of SW Cr. Sec. 33~ TllN~ R14E~ UM 11. Present well condition summary Total depth: measured 11887 ' feet Plugs (measured) true vertical 9242 ' feet Effective depth: measured 11846 feet Junk (measured) true vertical 9219 feet 5. Datum elevation (DF or KB) 64' RKB 6. Unit or Property name Prudhoe Bay Unit 7. Well number 7-!2 8. Permit number 78-79 9. APl number 50-- 029-20337 10. Pool Prudhoe Bay Oil. Pool Casing Length Structural Conductor 108 Surface I n term ed i ate 2706 Production 11887 Liner Perforation depth: measured 11206-11224', 11236-11271' true vertical 8893-9003 ' Tubing (size, grade and measured depth) 5½ @ 10345' MD Size Cemented Measured depth True Vertical depth 20 271Sx AS 108 108 13-3/8 5000 Sx AS 2706 2706 9-5/8 1600 Sx Class G 11887 9241 , 11285'-11316' Packers and SSSV (type and m%asured depth) Camco Bal-O SS? @ 2226 MD, Baker SAB packer @ 10215' MD Alaska 0il & Gas Cons. r'm,,,-,-~,-,-;~,,.; An01,0, ~,: ,e 12.At tach merits Description summary of proposal [] Detailed operations program [7] BOP sketch 13. Estimated date for commencing operation 14. If proposal was verbally approved Name of approver Date approved 15. I hereby,certify that the foregoing is true and correct to the best of my knowledge Signed 4~~~~ Title ~ ~ ~'/~,, Commission Use Only Date Conditions of approval Approved by Form 10-403 Rev 12-1-85 Notify commission so representative may witness [] Plug integrity [] BOP Test [] Location clearance Commissioner [Approval No. by order of the commission Date Submit in triplicate EDP/06 T. Farnsworth, ATO 1515E, x6843 WELL 7-12 COILED TUBING UNIT CEMENT SQUEEZE WORKOVER PROCEDURE le me 0 0 e e Ye RIH with CTU and wash perforations with half strength mud acid. Clean fill and fluid pack wellbore. Pump cement and squeeze the following intervals: 11206'-11224' 11236'-11271' 11285'-11316' 11349'-11370' 11389'-11408' 11416'-11446' (Ref: BHCS 4/13/79) Contaminate cement with a borax-bentonite mix. WOC 12 hours and reverse out contaminated cement. Perforate as follows: 11349'-11370' 11389'-11408' 11416'-11454' (Ref: BHCS 4/13/79) Test well. EDP/06 ~,~.~., ~ 0 1 1986 Alaska O~t & Gas Cons. go~:~'~-~!~;:,3?;~r~ AnchoraOe iI I ! 5 4 2 , I,, 1. 5000 PSI 7" WELLHEAD CONNECTOR FLANGE 2. 5000 PSI ~- 1/16" PIPE RAMS 5. 5000 PSI 4 1/6" HYDRAULIC SLIPS 4. 5000 PSI 4 1/6" SHEAR RAMS 5. 5000 PSI 4 1/6" BLIND RAMS 6. 5000 PSI 4 1/16" STUFFING BOX I ~,las,k.a Oil [ Gas cons. Co,: ........... CO!LED TUBINO UNIT BOP EQUIPMENT 3 ii , , II 1. 5000 PSI 7" WELLHEAD CONNECTOR FLANGE 2. 5000 PSI WlRELINE RAMS (VARIABLE SIZE) 5. 5000 PSI 4 1/6" LUBRICATOR 4. 5000 PSI 4 1/6" FLOW TUBE PACK-OFF W I REL I NE BOP EOU I PMENT ......... 1'~o.' ~ v c; ~006 E .1 ARCO Alaska, In¢ Prudhoe Bay Engineering Post Office Box 360 Anchorage, Alaska 99510 Telephone 907 263 4248 Donald F. Scheve Regional Operations Engineer April 12, 1984 Mr. C. V. "Chat" Chatterton Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Dear Mr. Chatterton: Re: DS 7-3 Permit No. 78-11 DS 7-12 Permit No. 78-79 Enclosed are "Intention" Sundry Notices detailing work to be done on the above-mentioned wells. Very truly yours, D. F. Scheve DFS/WT/la Attachments cc: SOHIO Alaska Petroleum Co. File Pi(DS 7-3,12)W1-3 ARCO Alaska, Inc. Is a Subsidiary of AtlantlcRIchfleldCompany STATE OF ALASKA ALASK '-")IL AND GAS CONSERVATION C~VIMISSION SUNDRY NOTICES AND REPORT ON WELLS DRILLING wELL[] COMPLETED WE L~:~ OTHER [] 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Anchorage, Alaska 99510 4. Location of Well 746'S & 265'W of NE cr Sec. 33, TllN, R14E, UM (Surface) 1403'N & 1548'E of SW cr Sec. 33, TllN, R14E, UM (Top Prod) 777'N & 665'E of SW cr Sec. 33, TllN, R14E, UM (TD) 7. Permit No. 78-79 8. APl Number 50- 029-20337 9. Unit or Lease Name Prudhoe Bay Unit 10. Well Number 7-12 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. 64' RKB ADL 28309 12. Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data 11. Field and Pool Prudhoe Bay Field Prudhoe Bay Oil Pool NOTICE OF INTENTION TO: (Submit in Triplicate) Perforate XJ~] Alter Casing [] Perforations Stimulate [] Abandon [] Stimulation Repair Well [] Change Plans [] Repairs Made Pull Tubing [] Other [] Pulling Tubing (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) SUBSEQUENT REPORT OF: (Submit in Duplicate) [] Altering Casing [] Abandonment [] Other 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). ARCO Alaska, Inc. proposes to add perforations on DS 7-12 for selected intervals within the Sadlerochit Sand from the Prudhoe Bay Unit. All wireline work will be done through a 5000 psi WP BOP/Lubricator, tested to 1.2 times the maximum expected surface pressure. The SSSV will be installed at the conclusion of the perforating and clean-up operation. Proposed Perforation Intervals: Ref: BHCS/GR 4/13/79 11416-11446' MD 14. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ,~~~~ Title Regional Engineer The space below for Commission use Conditions of Approval, if any: SIGN[II Approved Cc~o~ ~turned/ By Order of COMMISSIONER the Commission Approved by. Form 10-403 Rev. 7-1-80 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate ARCO Alaska, Inc. ..,' '~ POst Office Bo~--360 ~' Aihchorage. AI~/. ~ 99510 Telephone 907~ 277 5637 April 28, 1982 Reference: ARCO ~GNETIC TAPES & LISTINGS D.S.14-29 2/28/82 D.S.6-97'''/ 3/18/81 · D.S.2-19~'~ 3/24/82 ,~D;;:.iS~;7~12~'~l/ll/81 D.S i3-20 '"~2/i7/82 D.S.15-3~/2/82 D.S 1-17 2/26/82 D.S.i-10 D.S 14-28J 3/28/82 D.S.7-14 ~/'1/82 D S 12-1 .~2/23/82 D.S.7-11 3/31/82 Tape# ECC 1232 Open Hole Tape# ECC 884 DDNLL Tape# ECC 1255 CN Tape# ECC 878 DDNLL Tape# ECC 1225 CN Tape#· ECC 1266 CN Tape# ECC 876 DDNLL Tape# ECC 733 DDNLL Tape# ECC 1262 CN Tape# ECC 1265 CN Tape# ECC 1231 CN Tape# ECC 1264 CN Please sign and return the attached copy as receipt of data. Mary F. Kellis North Engineering Transmittal # 131 DISTRIBUTtON NORTH GEOLOGY R&D DRILLING MARATHON CHEVRON ARCO Alaska. Inc. IS a $~[.:~:J.ary ~.,f A'lanl~cR,chl~elclCompan¥ MOBIL GETTY D&M GEOLOGY · ' _ ,-' '....~.' · t~ ,~,~..~ AJss:ka Oil & Gas Cons. North Alaska DislricI Post O~-'e Box 360 Anchol~ ), Alaska 99510 Telephor~e 907 277 5637 Jerry A. Rochon District Operations Engineer March 10, 1981 Reference: ARCO Magnetic Tapes & Listings D.S.16-16 2/18/81 Tape # CN 9500-11080 Dresser Atlas 2/18/81 Tape # DDNLL 10420-11596 Dresser Atlas 'P~lease.sign and return the attached copy as receipt of data. Mary F. Kellis North Eng~ ne~.rip, g Transmittal #117 DISTRIBUTION NORTH GEOLOGY EXXON R & D MOBIL DRILLING GETTY ENG. MANAGER PHILLIPS D & M SOHIO GEOLOGY MARATHON STATE OF ALASKA CHEVRON ARCO O*1 and Gas, Company is a Division OI AtlanlicRichlietdCompar~y ~i'-l~.,~U k/ii dllU ~,,-,~d~ k,~UIIIJ. Jf, Jlly North Alaska OisJrict Post Offic( ,x 360 Anchorage, ,~laska 99510 Telephone 907 277 5637 Jerry A. Rochon District Operations Engineer Feb 6, 1981 Reference: ARCO CASED HOLE FINALS D.S.3-10 2/10/80 D.S.3-10 2/10/80 D.S.3-13 1/11/81 D.S.6-1 1/14/81 D.S.6-9 1/14/81 D.S.6-9 1/16/81 D.S.6-13 1/16/81 D.S.6-14 1/4/81 D.S.6-15 1/10/81 !~ D.S.7-12 '7 1/11/8! D.S.9-18 1/19/81 D.S.13-3 1/15/81 D.S.14-7 1/12/81 D.S.16-16 1/-2/81 D.S.16-16 1/21/81 D.S.16-16 1/13/81 Spectralog CNL/Gamma Ray Collar Log DDNLL Spinner Log DDNLL Sp~nner Log Spinner Log Spinner DDNLL DDNLL DDNLL DDNLL Collar Log/Gyro Corr. CNL/Gamma Ray ACB/VDL altease sign and return the tached copy as receipt of data. DIS?RIBUTION Mary Kellis NOrth Engineering NORTH GEOLOGY R&D DRILLING ENG. MANAGER D&M GEOLOGY Transmittal #53 STATE OF ALASKA Run 2 Run 2 Pass/J2 Run 1 Run 1 Run 1 Run 1 Run 1 Run 1 Run 1 Run 1 Run 1 Run 1 EXXON MOBIL GETTY PHILLIPS SOHIO MARATHON CHEVRON 11 5" 5" 5" 5" 5" 5" 5" 5" 5" 5" 5" 2" & 5" 5" (on same log) "~ '/' "/ . .... ~.,/'..',/~ I/, ?. / '. /. ~, ,.; '' , ..~Y.' .'_...~ RECEIVED FEB 1 0 1981 Alaska Oil & Gas Cons. Commission Anchorage ARCO Oil and (Gas Company is a D~vlslon of AllanticRIchlIeldCompan¥ Feb 6, 1981 ARCO Oil and Gas Company North Alask ~strict Post Office ~,x 360 Anchorage, Alaska 99510 Telephone 907 277 5637 Jerry A. Rochon District Operations Engineer Reference: ARCO PRESSURE DATA if'"~]-S.7-12 ~> 10/25/80 Pressure Survey ~.___ D.S.7-11 11-30/31-80 Pressure Survey D.S.14-3 12-05/06-80" " D.S.6-4 9/19/80 " " D.S.6-10 12/14/80 " " 'CO~,!Fr 2: 'i ease sign and return the attached copy as receipt of data. Mary Kellis North Engineering Transmittal #54 DISTRIBUTION NORTH GEOLOGy R&D DRILLING ENG. MANAGER D&M GEOLOGY STATE OF ALASKA EXXON MOBIL GETTY PHILLIPS SOHIO MARATHON CHEVRON ARCO Oil and Gas Company is a Division of AtlanticRichfieldCompany AI:ICO Oil' and GaS Company North Alarf' Oistric~ Post Office _ox 360 Anchorage, Alaska 99510 Telephone 907 277 5637 Jerry A. Rochon District Operations Engineer December ll, 1980 Reference' ARCO Cased Hole Finals D.S. 14-9 11/3/80 D.S. 14-9 11/4/80 D.S. 17-5 1]/3/80 D.S. 7-5 9/28/80 D.S. 7-4 8/25/80 ~,,,~,D~;7-12 ~t 10/26/80 4-Arm caliper Run 1 CBL Run 1 CBL Run 1 CNL Run 2 Spinner Spinner , , ,. eas~ cign and re~,~rn ~h~ ~-+~'h,~d rnn,~ as receipt of data 11 5'1 5~ 5I' 5" Mary F. Kellis North Engineering Transmittal #891 DISTRIBUTION NORTH GEOLOGY EXXON R & D MOBIL DRILLING GETTY ENG. MANAGER PHILLIPS D & M SOHIO GEOLOGY MARATHON STATE OF ALASKA CHEVRON ARCO O~tand Gas Company is a Division O! AtlanticRichlieldCompany November 13, 1980 North Alaska District Post Offic,"-"ox 360 Anchorage. ,laska 99510 Telephone 907 277 5637 Jerry A. Rochon .District Operations Engineer Reference: ARCO Cased Hole Finals D.S. 7-5 9/4/80 Spinner 5" D.S. 3-6 8/17/80 Lifetime log Run 1' 5" D.S. 3-10 9/26/80 Neutron log Run 3 5" ,'~ r,;I ¢.. c,_ o 72 3 GEOl- / STAT TEC STAT TEC . _ ..__~..__-.----~ cc~NFER: FILF: ,, , _-:--. ~~e~$e sign and return the attached copy as receipt of data. Mary Ke!lis i{oz"b h. Engineering Transmittal #804 DISTRIBUTION NORTH GEOLOGY EXXON R&D MOBIL DRILLING GETTY ENG. MANAGER PHILLIPS D&M SOHIO GEOLOGY MARATHON STATE OF ALASKA CHEVRON ,.'7 - .. -/:'.l,'i:' .2~L~-''~ ~chmage ARCO O~1 and Ga~ Compan~ is a Division of AllanlicRichlieldCompany ARCO Oil and G~'"~Cornpany Pos[ Office Bo.'< 350 Anchorace. Alaska go510 Te!eonone ~;07 277:5G$7 September 3, 1980 Reference: D.S. 1-!1 D.S. 1-17 D.S. 2-10 D.S. 6-13 D.S. 6-14 D.S. 6-14 D ~ ,7-11 ,.:D,.S, 7-12 '7:: ]P.S. 9-14 ~~Please sign of data. ARCO Cased Hole Logs 7/3/80 CNL Run 2 5" 7/3/80 " Run 2 5" 7/2/80 " Run 1 5" 6/7/80 " Run 1 5" 6/25/80 CNL Eun"'l 6/25/80 CCL/Oyro Run 1 2 & 5" 6/30/80 CNL Run 3 5" 8/2/80 Caliper Run 1 5" 6/30/80 CNL Run 3 5" 8/6/80 Diff Temp Run ! 5" same log) and return the attached copy as receipt K. J. Sahlstrom North Engineering TRAi~SMITTAL #580 DISTRIBLWION North Geology R 6 D Mobil Drilling Getty Eng. Manager Phillips D [, M Sohio 6eolo~7 Marathon State of ~aska Otev~on ARCO Oil and G,!~ Company Al~sk~ f :c: Te~.oncne 2;07 277 5:3S7 September 3, 1950 Reference' Cased Nole Loss D.$. t-li 7/3/80 C:'.:L Run 2 5" D.S. 1-17 7/3/80 " ~:~un ~ ~' 9" D.S. 2-10 7/2/50 " Run 1 5" D.S. o-13 6/7/80 Run i 5" D.S o-~ 6/25/80 CNL D.S. 6-14 6/25/80 ecL/Gyro Run 1 2 & 5" (same loS , i 6/30/80 CNL Run 3 5" 8/2/80 Caliper Run i 5" D.S. 7-14 6/30/80 CNL R~ 3 5" D.S. 9-14 8/6/$0 Diff Temp Run 1 5" ~ /encase sisn az~d-'~ of data. North Engineering TRANSMITTALrr' 5u0-° North Geology F~xxon R fl D blobJ 1 PrillinR e~uu Enq ~k~aqer PhLllips D 5~ ~I Sohio 6eot o~w },Iara~hon State of ~aska Che~,Ton ARCO Oil and Gas Company Al~sk~ ~ .... t Posl Off:,c ...ox 330 May 29, 1980 Reference: ARCO Pressure Surveys .S ...... 6-4 5/18/80 Pressure Buildup · ~]'"7:~3 4/12-13/80 " " .S. 7-14 4/11-12/~0 Pressure Buildup ease sign and return the attached copy as receipt of data. ~. J. Sahlstrom North Engineering TRANSMITTAL #343 DISTRIBLq'ION North Geology E~xon R & D Mobil Drilling Getty Eng. Manager Phillips D & M Sohio Geology Marathon State o£ Alaska Cl~e~on ARCO C,~I ar'd 03S Comp,4ny ;s t D~$~on of ¢,IianI,cF4;ch~eic!Co~;tp~n¥ ARCO Oil and Gas P~--mpany Al~sk~ i,.~, ,; ri,. ;':::,.st O!f~c? B~ ;~ '7,:'.'.plic. r,- '~ .; ' ? ;'T :;.~:~',' March 28, 1980 Reference' ARCO Cased Hole Logs D.S. 1-11 7/4/78 Spinner Run 1 5" D.S. 1-12 7/11/78 Continuous Flow ~un 2 5" D.S. 2-11 7/1/78 " " ~un ] 5" D.S. 2-12 6/21/78 " " Run ] 5" D.S. 4-9 10/4/78 Continuous Flow Run ] 5" ' p~9~.. 10/3/78 Differential Temp Run ] 5" ~~1/29/80 Spinner: S" ~'i~Please sign'and return the attached copy as receipt of data. K. J. Sahlstrom North Engineering TtLiNSMITTAL # 239 DISTRIBLVION North Geology R&D Drilling Eng. ~nager D&~'~ Geology State of Alaska F~xxon Mobil Getty Phillips Sohio Marathon f]~evron Anchoro'~ A!ask,'.~ 995t0 Te~epho~,_ !~072775G37 September 17, 1979 Reference: Fmc!osed is Pressure Build-up Data for the follow.ing ARCO we 11 s: ~.S._~il 8/12/79 .Dresser Atlas D.S, 7-i3 8/10/79 " " D.S. 7-14 8/7/79 " D.S. 14-7 8/14/79 " y .' 4,88/lZ/79 ,, . ,, , Please sign and return the attached copy as receipt of data. Very truly yours, K. J. Sahlstrom North Fmgineering TRANS}.IITTAL # 344 I) ] STRI BUI"I ON North Ceolo,:,v I)r:i ]. 1 :inq Eng. khnager R & I) Geology State o[ Alaska Mob i .1. Getty Sohio ~.I~tratl/on Ph' ~ ~.~_ 1Lt~s Cbc\: Fort ARCO Oil and Ga~-Company Alaska Re, Post Office ~ox 360 Anchorage, AlaSka 99510 Telephone 907 277 563.7 September ll, 1979 Mr. Hoyle Hamilton State of Alaska Department of Natural Resources Division of Oil and Gas 3001 Porcupine Drive Anchorage, AK 99501 Subject: DS 7,1]~ Permi~ No. 78-78 /~. ....... ~"'~Zi'~-'~])Permit No '78-79 ""~'~-[IS~~,~ permit No 78-80 DS 7-14, Permit No. 78-81 DS 13-4, Permit. No. 78-63 DS 14-7, Permit No.. 78-66 Dear Sir: Enclosed please find a Completion Report along with the Per- forating History for each of the above-mentioned wells. Very truly yours, P. A. VanDusen District Drilling Engineer PAV:jh Enclosures ARCO Oil and Gas Company is a Division o! AtlanticRichfieldCompany Form SUBMIT IN DUPL. ,rE* STATE OF ALASKA (see other in- structions on reverse side) OIL AND GAS CONSERVATION COMMITTEE WELL COMPLETION OR RECOMPLETION REPORT AND LOG* WELLt I DRYF--~ Other b. TYPE OF COMPLETION: WELLI-~ OVER L~ EN I--] RESER. BACKI I E~ Other rcr.~2 ~ 2. NAME OF OPERATOR ARCO 0il and Gas Company 3. ADDRESS OF OPERATOR P. O. Box 360, Anchorage, AK 99510 4. LOCATION OF WELL (Report location clearly and in accordance with any State requirements)* At surface 746'S & 265'W of NE cr Sec 33, TllN, R14E, UM At top prod. interval reported below 1403'N & 1548"E of SW cr Sec 33, TllN, R14E, UM At total depth 777'N & 665'E of SCl cr Sec 33, TllN, R14E, UM 5. APl NUMERICAL CODE 50-029-20337 6. LEASE DESIGNATION AND SERIAL NO. ADL 28309 7. IF INDIAN, ALLOTTEE OR TRIBE NAME 8. UNIT, FARM OR LEASE NAME Prudhoe Bay Unit 9. WELL NO. DS 7-12 (23-33-11-14) ),.FIELD ANI~POOL ~)R W~ILPCAT uanoe ~av 'rle~a Prudhoe Oil Pool 11 . SEC., T., R., M., (BOTTOM HOLE OBJECTIVE) Sec 33, TllN, R14E, UM 2. PERMIT NO. 78-79 13. DATE SPUDDED J14. DATE T.D. REACHED J15. DATE COMP, SUSP, OR ABAND.3/28/79,J 4/12/79 4/23/79 J16. ELEVATIONS (DF,RKB, RT, GR, ETC)* J17. ELEV. CASINGHEAD 64' RKB TVD J19. PLUG BACK MD & TVDJ20. IF MULTIPLE COMPL., I CABLE TOOLS ~' TOTAL DEPTH' MD & ' TV DJ1 I 'All ,887'MD 9242 ~E,"g~6'MD 9219'TVD~H.~fl~gY* 21. ROTARY TOOLS INTERVALS DRILLED BY 22. PRODUCING INTERVAL(S), OF THIS COMPLETION -- TOP, BOSOM, NAME (MD & TVD)* 23. WAS DIRECTIONAL Top Sadler0chit 10,623'MD 8593'TVD SURVEYMADE Base Sadlerochit 11,763'MD 91,73'TVD Yes 4. TYPE ELECTRIC AND OTHER LOGS RUN DIL/SP, BHCS/GR, GR/CNL/CCL 25.. CASING SIZE WEIGHT. LB/FT. J GRADE J Zu" J94# Welded J H-40 j 13-3/8" 172# Butt I N-80 I 9-5/8" J47# Butt IN-B0& I I I soo-95J CEMENTING RECORD SX Arcticset cmt sx Arctic~Pt cmt s× Class G rmf CASING RECORD (Report all strings set in well) 108' 30" 271 ' 27. SCREEN (MD) SIZE 5-1/2I' 26. LINER RECORD TUBING RECORD AMOUNT PULLED SIZE TOP (MD) BOTTOM (MD) SACKS CEMENT* 28. PERFORATIONS OPEN TO PRODUCTION (Interval, size and number) /11,296'-11,21~.~]. Ell 2~_~.~36'-111,261" ~ !i!1,28~5'-11,296' ~ll,261'- l ~ w/4 shots per foot / ~0 ":!' DEPTH SET (MD) 10,345' PACKER SET (MD) 10,215' 30. D A T~d:'J~R ST P'RODUC~ION ~ 8/1 3/79~) 29. ACID, SHOT, FRACT ,It~ E~.~E-~I~EJ~T SQUEEZE, ETC. ., ,~ ~ ~,-' ¥ ~ ,: ,,.. DEPTH INTERVAL (MD) I AMOUNTAND'K!'ND~OF-M~ERIALUSED PRODUCTION IPRODUCTION METHOD (Flowing, gas lift, pumping--size and type of pump) F1 ow1 ng JWELL STATUS (Producing or j shut.,n) Producing DATE OF TEST. 8/18/79 FLOW TUBING PRESS. 866 HOURS TESTED 9.8 CASING PRESSURE 6536 CALCULATED OIL--BBL. GAS--MCF. 24-HOUR RATE I ~ 16,006 11,165 31. DISPOSITION OF GAS (Sold, used for fuel, vented, etc.) Reinjected GAS--MCF. WATER--BBL. J GAS-Gl L RATIO I 4s 9 J 0 j WATER-BBL. J OIL GRAVITY-APl (CORR.) J 0 J 27 I TEST WITNESSED BY 32. LIST OF ATTACHMENTS Perforati ng Hi story 33., hereby certify ~oregoi;7~. ~tla~?c)~ifo~m~i~o. il coynplete and correct as determined from all available records. /-. ~.-7.~'~za~c~l.~,~ District Drilling Engineer SIGNED _ · - . TITLE *(See instructions and Spaces for Additional Data on Reverse Side) 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: 16' 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. Items 20, and 22: If this well is completed for separate production from more than one interval zone (multiple com- pletion), so state in item 20, and in item 22 show the producing interval, or intervals, top(s), bottom(s) and name(s) (if any) for only the interval reported in item 30. Submit a separate report (page) on this form, adequately identified, for each additional interval to be separately produced, showing the additional data pertinent to such interval. Item 26' "Sacks Cement"' Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 28: Submit a separate completion report on this form for each interval to be separately produced. (See instruction for items 20 and 22 above). 34. SUMMARY OF FORMATION TESTS INCLUDING INTERVAL TESTED, PRESSURE DATA AND RECOVERIES OF OIL, GAS, 35. GEOLOGIC MARKERS WATER AND MUD NAME MEAS.'"DEPTH TRU"E v~RT. DEPT .... None Top Sadlerochit 10,623' 8593' Base Sadlerochit 11,763' 9173' 36. CORE DATA, ATTACH BRIEF DESCRIPTIONS OF LITHOLOGY, POROSITY, FRACTURES, APPARENT DIPS"' AND DETECTED SHOWS OF OIL, GAS OR WATER. _ ......... None DS 7-12 Perforating Hi story API 50-029-20337, ADL 28309, Permit No. 78-79 Rigged up perforatinq equipment 8/10/79. Tstd lub to 5000 psi. Ran Spectra log. Tstd BOP @ 5000 psi. Perforated intervals 11,296'-11,316', 11,285'-11,296', 11,261'- 11,271' , 11,236'-11,261'. Perforated depth referenced to CNL log dated 4/22/79. Flowed well. Ran Amerada press bomb from 11,178' w/gradient stops. Ran SSSV. Installed & tstd tree cap @ 5000 psi. Released well to Prod Dept @ 1800 hrs 8/14/79. Posl Of[ice Box 360 Ancho?-~e, Alaska §9510 Teleph~ z 907 277.,,..~or~°"'~ August 27, 1979 Reference' F~closed are Cased Hole Logs for ARCO wells' D.S. 14-8 8/12/79 Fluid Density S" D.S. 3-!,) 8/11/79 Compensated Neutron 5" D.S. 13--4 8/12/79 Spectralog 5" D.S. 14-7 8/11/79 Spectralog 5" D, Sj~:i~_~.~ 8/14/79 Compensated Neutron 5" ' 8/10/79 Spectralog 5" Please sign ~d retu~ the attached copy as receip~ of data. Very truly yours, R. A. Bellinger North Engineering TP~ANSHITTAL # 295 D I STR I ]'~[JT I ON ~Yor th Geology Dr i 11 ing Eng. Manager fico].ogy State of Alaska EXXOIt Mobil Getty Sohio ~laratt~on Ph l 11 ips Chevron North Alaska District: Post O[fice.-~-'"~x 380 Anchorage. ,aska 99510 Telephone 907 277 uo37 August 16, 1979 Reference' Enclosed are Open-Hole Logs of the following ARCO wells' D.S. 7-12 4/13/79 DIL Run 1,2 2'~&~ 5" D.S. 7-12 4/13/79 BHCS Run 1,2 2"& 5" Please sign~t~F~return the attached copy as receipt of data. ~/ Very truly yours, R. A. Bel!inger North Engineering TRANSMITI'AL # 271 DISTRIBUTION North Geology Dri 11 ing Eng. Manager R~D State of Alaska Kxxon Mobil Getty Sohio ~hrathon' ~]illips Chevron Anch 'e, Ala-:ka 93o'10 Telephone 907 277 533? July 13, 1979 Reference' Enclosed are final py~ints for the following ARCO cased-hole well~;.,/.,:~., ::. ' ..... D.S, 1--13~J,_..~ZIZ4~i Spacing Thermal Neutron 'DecaZ T~e .... 1/23/.?.~": ~D~S. 7,1~:~L ~ ~~-. ~-.~ 4/22/79 ..... 5 r(~'~T~'i~07''* ~sing Co~_.~LOg ~~,~') 2/1/79 5" D.S. 14-5 ~coustic Cement Bond Log ~L 2/20/79 5" D,S. 14-2 ~erforation Collar Log 3/9/79 5" D.S. 1-.18 ~ Tie In Log For ~wer Baker Packer 5/2/78 5" Run D.S. 3-8 ~luid Density - 2/12/79 5" Run 1 D,S-~5~8 ..... ~pi~er Flo~eter ...... ~ - ........... 1-19/21-79. _S'!_. .......... 2/10/79 5" z3-2 . PZease s&gn and ~etufn the attached copy as receipt of data. VeQ- truly yours, R. A. Bellinger TRANSMITTAL # 215 DISTRIB[fi'ION North Geology Drilling Eng. Manager R & D Geology State of Alaska I) & M Mobi] Get ty Sohio Marathon Phil].ips Chevron North Alaska District Post Off. i"--'~'~ox 360 Anchora__ Alaska 99510 Telephone 907' 277'5637 June 7, 1979 Reference' Enclosed are Magentic Tapes for the following wells' D. S-.~.~ ~-13_:~ ~ #55265 4-21-79 ~'.S. #7-i2~;'~ #55256 4-11-79 ..... 3::S ..... -#]3Lgi~-:i.::.:~::;::;? #55104. 5-09-79 P.S. fl14-7 #55301 4-23-79 D.S. ~.7-12 ~55373 4-2Z-79 Please sign and .r~urn the attached transmittal as receipt of data. Very truly Yours, · R. A. Hamlin North Operations Engineering Transmittal #179 DISTRIBUTION North Geology Drilling Eng. Manager R 6 D Geology State of Alaska Mobil Getty Sohio Marathon ~illips Chevron Alaska Alaska Oil and Gas Conservation Commission Hoyle lt. Hamilton Chairman of the Commission~/f Lonnie C. Smith Commissioner Harold R. Hawkins Petroleum Inspector May 21, 1979 To Witness BOP Test ARCO DS 7-14 Sec 27, TllN, R14E, UM Permit No. 78-81 M~ ~,~3 1979 - i left NGI-14 where I witnessed a BOP test to DS 7-14. Nippling up was in progress on blowout equipment that I was to witness the tests on. The ARCO supervisor was Tony Zieto, the Rowan pusher on Rig 34 was Charley Engerson. The nippting up was finished at 9:00 PM and the BOP tests started at 10:00 PM and finished at 2:00 AM on the 19th, except for two failures that were repaired and tested at 3:00 PM on the 19th. The annular preventer was tested first to 3000 psig. The upper pipe rams, the check valve on kill line, and the outside choke (HCR) valve, were tested to 5000 psig. With the upper pipe rams still closed the outside ki].l valve and inside choke valve were tested to 5000 psig. With the upper pipe rams still closed the inside kill valve three valves away from stack in cellar and six valves on manifold and super choke were each tested to 5000 psig. The super choke and one valve in the cellar failed and were repaired and tested to 5000 psig. The manual choke operated freely. Ma~, 1979 - With the test stem still in the test plug I witnessed a performance test of accumulator. The master gauge read 3000 psig, the manifold gauge read 1500 psig and the annular preventer gauge read 1200 psig. With all power shut off the accumulator, the annular preventer, the upper and lower pipe rams, were closed and the HCR valve was opened at one time utilizing the master controls. The pressure on the master gauge dropped to 1250 psig and stabilized. ~e pumps were turned back on and the pressure rose to 1450 psig in forty-five seconds. Thus indicating the precharge in accumulator was ok and the pump operating satisfactory and there were no leaks in the control lines or BOP seals. The nitrogen backup had 2100, 2150, 1950, 2150 psig each. The test stem was pulled and the blind rams were tested to 5000 psig. The upper and lower Kelly was tested to 5000 psi ok. There was a ball valve and dart type drill stem safety valve on floor, both were ok. The location was clean and free of debris. The mud pit was open but well bermed. There was a well sign up with all data ok. Witness BOP test ARCO DS 7-14 2 May 21, 1979 In Summary: I witnessed the tests of BOP's and componants on DS 7-14 for ARCO. When tests were finished, all BOP's and control equipment tested satisfactory. Drlg. Permit No. Operator_~ .A,}~ L--~ Satisfactory T~,pe Inspection Yes No Item ( ) Location,General (A) () (x) () ~I () () () () () () () () () () () () () () 1. Well Sign 2. General Housekeeping 3. Reserve Pit-F~Nk)open( /filled 4. Rig ( ) Safety. Valve Tests 5. Surface,No. Wells 6. Subsurface-No. Wells ( ) Well Test Data 7. Well Nos. , , , 8. Hrs. obser , , , 9. BS&W , , , 10. Gr. Bbls. , , , ( ) Final Abandonment A1 "~a Oil and Gas Conservation Comm', ae Field Inspection Report Wel 1/Platfm Sec.~7T~?/¥ Represented by__Name & Number_~_/~ ~_ SatisFactory Type Inspection Yes No Item ~ BOPE Tests (~) ( ) 15./~ Casing set (~) ( ) 16. ~ f/ui~-~)wtr. ()mud ~)oil (a)() 17. Master Hvd. . Control ~..,qvs . -~.~psi Q. . .. (~) ( ) 18 N~ btls.~Fo.~, (A) ( ) 19] R~mote Controls (x) () (~) () (~) () (~) () (~) () () (~) () 20. Drilling spool- ~g"outlets 21. Kill Line-(~) Ch-6ck valve 22. Choke Flowline g~') HCR valve 23 Choke Manifold lq~. valvs~[_flas,2~, 24 Chokes-(X)Remote~()Pos.()()Adj] - 25 Test Plug-(~)Wellhd( )cs.o( )none 26. A. nnular Preventer,~d~siu 27. Blind RamsjF~ psig ( ) ( ) 11. P&A Marker (2~) ( ) 28. Pipe Rams ~-m~g__psig ( ) ( ) 12. Water well-( )capped( )plugged (~) ( ) 29. Kelly & Kelly-cockj~z~:,~ psig ( ) ( ) 13. Clean-up (X) ( ) 30. Lower Kelly valvej-~,opsig ( ) ( ) 14. Pad leveled ~ (~) ( ) ~31. Safety Floor valves-~BV (~Dart Total inspection observation time ~ ~days Total number leaks and/or equip, failures ~ Remarks~A/~v~ /:/X~:D ~~ ~ ~A~~~2 1~3~_6~~7~ o~ cc:'~m~ ///~(i~ Notify in .~'ys oVwhen ready., . Inspected by~U//~' DateC~7~ . North Alaska District Post Of[ice "-"~-.360 - Anchorage,,. .ka 99510 Telephone 907 277.5637 Reference: Enclosed is the following Directional Survey: · DS 7-12 GTroscopic ..-4/20/79 Please'sign an dreturn the copy as~~'~ of data. Sincerely, / V.G. Reimers North Engineering TRANS~KT~AL #164 DISTRIBUYION North Geology Drilling -Eng. Manager R~D Geology State of Alaska.J ~xxon- Mobil Getty Sohio ~rathon- Phillips Chevron --~ Post O~fica ~,~'T~3SO Anchoraue, ~ .ska S9510 Telephone 5~,¢' 277 5637 Reference' Enclosed are the following Directional Surveys' DS 13-4 Singleshot ~/23/79 -DS 7-9 Singleshot 4/3/79 DS 7-10 Singleshot 4/3/79 DS 7-11 Singleshot 4/3/79 DS 14-7 Singleshot 4/25/79 ~~ Singleshot 4/23/79 ~ Singleshot 4/23/79 Please sign and r2t~n~.the copy as receipt of data. ' Sincerely; ~ V.G. Reimers North Engineering TRANSbIITFAL #1.63 DISTRIBUTION North Geology~.,~' Drilling Eng. Manager R & D Geology State of Alaska'~- D & bi ~xxon-."~ Mobil Getty Sohio ~rathon ~dllips Chevron Post Othce Sox 3~0 · Anchorage? hska 99510 Telephon~ ,.,'2775G37 Reference' Enclosed is the following Directional Survey' DS 7-12 Gyroscopic -4/20/79 Please'sign and return the copy.as'receipt of data.~ Sincerely, V.G. Reimers North Engineering . TRANSMITI'AL #164 DISTRIBUTION North Geology'-j Drilling . Eng. Manager-~ R & D Geology State of Alaska.? Mobil. Getty. Sohio " ~rathon ~illips Chevron - {' ,, .Anchor~rjo, A~_14auka 93SI0 Tol~':phon8 277 5037 Reference' Enclosed are t'he following Directional Surveys' DS 13-4' Singleshot . ~/23/79 DS 7-9 Singleshot 4/3/79 DS 7-10 Singleshot 4/3/79 DS 7-11 Singleshot 4/3/79 · ,~ DS 14-7 Singleshot 4/25/79 ~¢ N #2 Singleshot 4/23/79 ~~ Singleshot 4/23/79 Please' sign and return the copy as receipt of data. Sincerely', V G. Reimers North -Engineering TRANSMITTAL #163 DISTRIBUTION North Geology Drilling Frog. Manager R&D Geology State of Alaska D&M ~,XXOD t '""~ Mobil Getty Sohio -" Marathon Phillips Chevron ARCO Oil and Gas ( ,pany Alaska Region' Post Office Bo:< 360 Anchorage, Alaska 99510 Telephone 907 277 5637 May ll, 1979 Mr. Hoyle H. Hamilton State of Alaska Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Subject' DS 7-12, Permit No. 78-79 Dear Sir- Enclosed please find a Completion Report along with the Drilling History and Gyroscopic Survey for the above-mentioned well. Very truly yours, P. k. VanDusen District Drilling Engineer PAV' cs Attachments ARCO Oil and Gas Company is a Division of At anticRichfieldCompany Form SUBMIT IN D, E* STATE OF ALASKA (~ Other lil- structions on reverse side OIL AND GAS CONSERVATION CO/~MITTEE m i WELl cOMPLETION OR RECOMPLETION REPORT AND LOG* la. TYPE OF WELL: OIL,,.ELL ~] GASwELL ~-] DRY [--] Other b. TYPE OF COMPLETION: NEW [-~ WORK [-~1 DEEP-[] PLUG ~--~ DIFF. ~-~ WELL OI'ER EN BACK RESVR. Other 2. NAME OF OPERATOR Atlantic Richfield Company 3. ADDRESS OF OPERATOR' P.O. Box 360 Anchorage, Alaska 99510 LOCATION OF WELL (Report location clearly and in accordanoe with any State requirements)* At surface 746'S & 265'W of NE cc Sec 33, TllN, RI4E, UM At top prod, tnterval repotted below 1403'N & 1548'E of SW cr Sec 33, TllN, R14E, UM At total depth 777'N & 665'E of SW cc Sec 33, TllN, R14E, UM 5. AP1 NUNI.F.,_I~CAL CODE 50-029-20337 6. LEASE DESC[GNATION AND SERIAL NO. ADL 28309 ~. IF INDI.~dXI, ALLO~ITEE OR TRIBE NA/VIE '8. UNIT,FA/IlVi OR LEASE NAME Prudhoe Bay Unit DSE !7-1Z)( 23-33-11 -14 ) 10. F,~ I.~ ~/~) PO~)L, OI~.WIL~C~T ; ~ruonoe ~av I Prudhoe Oil Pool 11. SEC., T,, R., ~., (BO~O~ O~B~IV~) Sec 33, TllN, R14E, UM 12. P~IT NO. 78-79 gL~VATIONS (DF, RKB, I{T, GR, ~3rC)* 17. ELEV. CASINGHEAD / 3/28/7 9 4/1 2/79 4/23/79 & TVDr. IF 1Vt'ULT]I:~LE CO1ViPL., - I~0TARY LS 18. TOTAL DEPTH, NLD & TVD 9. PLUG, BA,CK MD ~ 21..." INTERVALS DRILLED BY ~OW M2klNIY* CABI,E TOOI,I'i ll,887'MD 9242'TVD [ll,846'MD 9219'TVD[ Sinqle P2,. Pi%O.DUCING IiN'TE/qVAL(S), OF THIS COMPLETIOaN'--TOP, BOTTOM, NA/VIE (MD AND TV'D)' ,23. WAS DIRECTIONAL ~ SURVEY MADE Top Sadlerochit 10,623'MD 8593'TVD Base Sadlerochit 11,763'MD 9173'TVD ~ Yes 24. TYPE ELECTRIC AND OTHER LOGS RUN DIL/SP, BHCS/GR, GR/CNL/CCL ! - - CASING RECORD (Report all strings set in well) CASING SIZE 20" 13-3/8" _ 9-5/8" 94~ Wel dedl H-40 ': 72# Butt [ N-80 47# ButtI N-80~ ~00-95 DEPTH SET (1VLD) ] 08' 27.06' 11887' 26. LINER RECORD : 1 28. PERFORATIONS OPF_aXl 2'0 PRODUC~PION (Interval, size and number) N/A ' i i ,'~). PRODUCTION DATE FIRST PRODUCTION HOLE SIZE ] CFAM. LNTING RECORD 30" 1271'sx Arcticset cmt 17-1/2" [5000 SX Arcticset cmt 12-1/4" 11600 sx Class G cmt 27. TUBING N/A DATE OF FLOW, TUBING 31. DISPOSITION OF A.MOUNT PULLED l 1 5-1/2" 10~345' ', 10~215' 29. ACID. SiiOT, ~i%~cyCrRE. CEaNIE. NT SQUE~ZF,, ETC. D]~-~TI-i [NT]ERVAL (MD) / AMOUNt 2~ND KiND OF M~k'I'E~IAL USED 1 ~/A PI~oDUcTION MEII{O'D (Flowh~g, gas lifL pumping--size and type of pump~ [VCELL STATUS (Producing or · ~o~s TES~ ']~oxr SiZE ]PROD'N FOR OI~BEL. CAS~G PR~SU~ ICAL~~ OI~BBL. 'g~s (~o~, ~eeg lot luel, venteg, etc.)' J GAS-OIL IL~.TIO WA~BBL. JOIL GRAVITY-AP1 (CORR.) 1 ITEST WITNESSED BY 32. LIST OF ATTACHMENTS Drilling History, Gyroscopic Survey 33. I hereby certify that,S%ed Information is complete and correct as determined from all-available records sm~ ~.J~. ~,?~.~. District Drilling Engineer ~a,~__5211/79 i i *(See Instructions and S~ces lot AdditiOnal Data on Reverse Side) 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: 16: Indicate which elevation is used as reference (where not otherwise shown) for depth measure- ments given ~n cther spaces on this form and in any Items 20, and 22:: If this well is completed for separate production fror'~ more thar~ one ~nterval zone (multiple comF)letior~) so state ~n ~ten~ :)[) ,'~nc'] ~I~ ~to.,~ ~'~2 s~c~,..~, th~: !~rc_]~(',;,'l Jntcrv~l. or ~l~te~v~'~ls, top(s), bottom(s) and name (.s) (if any) for only the ~nter~..: ret,erred ~ ~ter~ 30 Sub)c.-~,t a sep3rate report (page)' on this form, adequately identified, Jar each add~t~or~l ~r~.te~val to be separately prod~ceq, show- ing the additional data pertinent to such interval. Item26: "Sacks Cement": Attached supplemental records for this well shoulJ show the details of any mul- tiple stage cementing and the location of the cementing tool. Item 28: Submit a separate completion report on this form for each interval to be separately produced. (See instruction for items 20 and 22 above). ,, 34. SUMMAP, Y C)F' FX)~tMATI~)N TE.STS IN('I.,I.!I)IN(; IN'I'I-:!/VAL TF_S'rED I,~tE~SUl~ DaTA ~cov~:~l~F~ ()r oIL GAS 35 G~GIC WAT~ AND MUD None NAME MEAS. Top Sadleroch~t 10,623' 8,593' Base Sadleroch~t 11,763' 9,~73' . , , , , , ' ..... 7 ........... ~, ,~,,, .... : ................. ..... ~,' .............. ' . IL ""'7 .... ~"':" .... ~" ' ' '~ ": ' ...... 'l .... ¥' ' ' ......... ' ..... I'l"ilq , ,1~' i J V ...... None ~ [ , ~ .... , ,=~....,. , , ,, DS 7-12 DRILLING HISTORY API 50-029-20337, ADL 28309, Permit No. 78-79 Spudded well @ 1400 hrs 3/28/79. Drld 17-1/2" hole to 2__7__3.~'. Ran 13-3/8" csg w/shoe @ 2706'. Cmtd w/5000 sx Arcticset II cmt. Installed & tstd pkoff. Drld shoe & tstd formation to 12.4 ppg equiv MW. Drld 12-1/4" hole to .~!,806'. Ran DIL/SP log. Drld to ~8_7'. Ran DIL/SP, BHCS/GR logs. Could not get FDC log to bottom. Ran 9-5/8" csg w/shoe @ 11,8~7'. Cmtd w/1600 sx Class G cmt. Tstd FO's. Dwnsqz thru lower FO w/300 sx cmt. Tstd sqz job, would hold only 400 psi. Dwnsqz w/250 sx cmt thru lower FO. Tstd OK. Did Arctic Pack job thru upper FO. Tstd OK. Displ mud w/wtr & wtr w/CaC12. Ran 5-1/2" tbg compl assy w/shear sub @ 10,345', pkr @ 10,215', and SSSV @ 2226'. NU & tstd tree. Pulled dummy SSSV. Ran GR/CNL/CCL & gyro. Started long term tbg tst. Released rig @ 0600 hrs 4/23/79. Whipstock l A PETROLANE COMPLY REPORT of SUB-SURFACE DIREC TION,4 L SURVEY ATLANTIC RICH ~ELD CA PAN~ COMPANY D_.q. 7-12 WELL NAME PR, %~HOE BAY,. ALASKA LOCATION JOB NUMBER A479 G 0244 TYPE OF SURVEY g YROSCOPIC DATE 4-20-79 SURVEY BY Kevin Durling OFFICE ALASKA COMPLETION REPORT I MAY 79 ATLANTIC RICHFIELD CO DS 7-12 GYROSCOPIC SURVEY ~./~' ~ - K B ELEV 64 FT RADIUS'OF'CURVATURE HETHOD-OF CONPUTATIONS ~ DECLINATION 31 DEG, EAST COHPUTED FOR EASTMAN BY F M LINDSEY AND ASSOCIATES ................................................................. RECORD OF SURVEY ALL CALCULATIONS PERFORHED BY I B M'ELECTRONIC COMPUTER ............ TRUE MEAS'~ ..... DRIFT-VERTICAL ............ SUB .......DRIFT ............... TOTAL-COORDINATES DEPTH ANGLE DEPTH ..................... D-H ........................................ DEG~ C L O S U R'E S STANCE ANGLE D M DOG LEG SEVERITY ........ SECT' ~-' DEGtIOOFT ...... DIST-,, ....................... 0 ..... 0 0 .... 0,00 ........ ;6-~-;~00' N'O,OOE ....... 0,00 5 ..... 0.00 ~ ' 0.00 S 0 '0 0 W 3100 O O' 3100'00 3036,00 N O.OOE ...... O.00 S 0.00 W O.00 $ 0 0 0 W .... 3160 ..... O-30 3159.99 ..... 3095,99'-$15.00E ............... 0.02 N ..... 0.17 E O.18 N 82 ]0 O E 3200 O- O-' 3199.99 "3135'99 N O.OOE ....... 0'03 N 0.29 E 0.30 N 82 30 0 E .... 3300 .... 2 15 3299-'97 .... 3235'97 S'3.OOE ............. 0-*07 N 1.56 E 1.56 N 87 21 12 E 3~00 ~ 15 3399.80 3335.80 S I,OOW 5,59 S 1,66 E 5.83 S 16 35 31E 0.000 ....................... O~-O~- O.000 ..................... O';'0O-' O.83~ ................. 1,250 -0'2~-'" 2 ' 266 ........................ 2.000 ......... 2,~7 ..... .... 3500 ..... 7--0- 3~99"31 .... 3~35'3! SlO"OOW ........... 15'3~'"$ ....... 0,72 3600 8'45 3598.36 353~".36 313.00~ ............ 28.76 S '2.00 .... 3700--'9'--~5 3697.O6 - 3633,06 S32.0OW ..... 43.54 S 8.12 3800 12 0 3795,26 3731.26 337,00W 59,08 S 18,80 3900 1~ '15 3892,6~ ...... 3828'6~'-535,00W ..... 77.~5 S 32'15 ~000 1~ 0 3989,17 3925,17 $37.00W 98,56 $ ~7,~8 410018 O- 4084,80 .... 4020',80 S44.00W 120,78 S 66,~6 ~200 20 15 ~179.27 ~115,27 S~5'OOW '-'1~.1~ S 89.~2 -4300 .... 23 0 ~4272,23-- ~208.23-' S~4.00W 170'~3 S 115.25 4400 26 0 4363,21 ' ~299,2! S43,00~ 200,50 S 14],7~ --'4500"29 0-- 4451.90 4387,90-'345.00~ ..... 233.7I S" 175,86 ~600 32 0 6538,06 4~7~.06 S~7.00W 268,96 S ~700-'3~ 30 "~621.68 ~557,68 S~7,00~ 306.35 S ~800 37 15 ~702.70 ' ~638.70 S~5,00W 347,06 S '~900 .... 39 30 ~781.09 4717.09 $49.00W 389.38 S '5000 ~2 15 ~856,70 ~792,70 $49,00W ~32.3! S 5100'45 - 0 ~929,08 -'~865~08 S48,00W --478.03 S 5200 ~.8 0 4997.91 ~933,91 SGg,00W 526.08 S 5300 50 0 5063,51 ~999.51 SSO,OOW 575,10 S 212,36 W 252.q6 W 29~,61 W 340.00 W 389,38 W 441,05 W ~95.37 W 552.76 W 15.35 S 2' ~+3 8 E ....... 2.753 .......................... 28.83 $ 3 58 57 14 ~4,29 S 10 3~+ 11 W 62,01 $ 17 39 21 W 83.86 5 22 32 37 W 109.~0 S 25 ~.3 29 W 137.86 S 28 {+9 23 W 169.63 S 31 ~8 51 W 205,7~ $ ~ ~ 6 W 2~6~71 S ~5 ~8 ~7 W 292,~9 S ~6"'57 ~7 W 3~2.70 S 38 17 36 W 39&.98 S 39 29 29 W ~55,2~ S ~0 19 }B w 516,9~ S ~1 7 35 W 581,82 5 62 0 )] W 650,~1 5 42 ~1 46 W 722,61 S ~ 16 ~0 W 797,67 S ~3 51 55 W i.751 " .............. 20;63 1.139 ............. 35';03 2,260 5 :~';'3 ~ .... 2.253 ............... 1.757 101.02 2.253 16.~6' 2,75/+ 199 ~-3-- 3-006 ' 2~,0 ~75-" 3,037 .... 286;78- 3,052 337'~9 2.500 ........ 392-~ 30- 2.84~6 ' - 2.772 '-'~12;89-- 2,750 578,S2- 2-795 - 3,050 719;b4' 2,08~ 795,29'- ARCO i)$ 7-12 GYROSCOPIC SURVEY I MAY 79 RECORD OF SURVEY ALL CALCULATI'ONS PERFORHED BY I B ~4 ELECTRONIC C(JHPUTER ....... TRUE MEAS. DRIFT VERTICAL SUB DRIFT TOTAL COORDINATES DEPTH ANGLE DEPTH ....... SEA" DIREC D M DEG, 5400 49 45 5127,95 5063,95 SSO,OOW 624,25 S 611.33 '-5500'50 15 5192,23 5128~23 $~8.00W '674'50 S ........ 669.1~ 56'00 50 0 5256.34 5192'34 551,00W 724.34 $ 727.49 5700 50 15-5320.46 5256'46 .......551,00W '772,63 S 787.14 5800 50-30 5384,23 5320,23 546.00W 823.65 $ 844.80 -5900 51 0-5447.50- 5383'50 .... 548,00W 876,46'$ ..... 901,44 6000 51 15 5510.26 5446'26 .... 549,00W 928,05 5 959.74 6100'51 15 5572'86'-5508,'86 548,00W .... 979.73 5 .... 1018.15 6200-51 15 5635,45 5571,45 549,00W 1031.40 5 1076.56 6300 51" 15 5698.04 .... 5634,04 549.00W 1082,57 $ .... 1135,~2 6400 51 30 5760.46 5696.~6 $49,00W 1133.82 5 1194,38 -6500"51 45 ..... 5822'5~ 5758'54-' 545,00W .......1187;28 5- 1251.71 6600 51 0 588~.97 5820.97 545,00~ 1242,52 S 1306.95 .... 6700'51 30 5947.56 5883.56 546.00W 1297.18 5 1362,57 6800 51 30 6009.81 5945,81 546,00W 1351.55 5 1~18,87 -6900 51 15 ' 6072,23 -6008.23 546,00W -1405.82 5 1475,07 7000 51 0 6134.99 6070.99 546,00W 1459.90 S 1531.07 7100 49 0 6199'27 6135,27 -'$~6.00W -1513'11S '-1586.17 7200 50 0 - 6264.21 6200.21 S46,00W 1565.93 $ 1640.87 7300 50 '0 6328,49 6264,49 $48.00~ 16~8,17 $ 1696,89 ?400 50 - 0 6392,7? 6328,77 SSO.OOW 1668,42 S ~754,70 7500 49 45 6457,22 6393.22 S46.00~ 1719,58 S 1811,51 7600 48 15 6522,82 6458,82 $42.00W 1773,85 S 1863.93 -7700 48 0 6589.57 6525'57 545.00W 1827.86 5 1915,18 7800 47 15 6656,97 6592,97 546,00W 1879.64 S 1967.87 '7900 46 %5 6725.17 66~1,17 $45.00W 1930.90 S 2020,03 8000 a6 0 679%.16 6730.16 S%3,00W 1982.97 S 2070.31 8100 45 15 6864.10 6800.10 543,00W 2035.24 5 2119,06 8200 ~4 30 6934.96 5870,96 5~3,00W 2086,6~ 5 2167.18 C LO 5UR E 5 DISTANCE ANGLE D M 5 873,74 5 44 24 4 W 950,11S 44 46 i7 W 1026,60 5 45 7 28 W 1102.97 S 45-31 57 W 1179,~7 5 45 43 34 W 1257,29 $ 45 48 17 W 1335.06 5 45 57 ~2 W 1412.98 5 46 '6 6 W 1490,90 S 46 13 38 W DOG LEG 5EVERI TY SECTION ..... DE O / 100F T ........... D 1STA'~'E- 0,250 871-,72 1.284 9q8 1.778' ' 1025~ 0.250 1101~-~9 2.988 1178';69 .... 1o$07 ............ 1256';10-- 0.656 ............. 1~S3;'95 ..... 0.780 ..................... 111I';9~- 0,780 ....... 1~89;9S-- 1568,80 5 46 21 54 W 0,000 ............. I567;9I-- 1646,85 5 46 29 24 W 1725,22 5 46 30 47 W 1803,32 5 46 26 51W 1881.30 S ~6 24 ~0 W 1959,56 $ 46 23 ~1 W 2037,68 S 46 22 37 W 2115.53 S 46 21 4.7 W 2192.13 S 46 21 1 ~ 226e;17 S 46 20 19 H 2344.76 5 46 21 37 W 2~21.29 S 46 26 37 W 2497,71S 46 29 29 ~ 2573.09 S 46 25 6 W 26a7.~ S 46 20 10 w 2721.32 S ~6 18 49 ~ 279~,4q S 46 17 32 W 2866.77 S 46 14 4 ~ 293u.14 S 46 9 21 ~ 3008.59 5 46 4 54 W 0,250 1646,03-- 2,a80 ........... 172 G';"39- 0,750 ...... 1802;3B-- 0.791 ....... 0,000 1958~48-- 0.250 ....... 2036'-~ 54-' 0.250 2114~,33- 2.000 --- 219,'- 1,000 226t, -' 1,532 ...... 1,532 2420*02-- 2.685 2571'71 1,676 2645;90- 0,924 2719'-69 0,729 2792;73 1,278 286~;9i 0,750 ..... 2936';09-- 0,750 3006,3~ :. ARCO DS 7-12 GYROSCOPIC SURVEY 1 HAY 79 RECORD OF SURVEY .................... ALL CALCULATIONS PERFORMED BY I B M ELECTRONIC COMPUTER TRUE . HEAS.' DRIFT VERTICAL SUB DRIFT TOTAL COORDINATES DEPTH-'ANGLE ' DEPTH SEA ...... DIREC D H DEG. CLOSURES DISTANCE ANGLE D M S DOG LEG SEVERITY SECTION DEG/IOOFT ..... DI5'TAN('E' 8300 44--30 7006.29 6942.29 S44.00W 2137.69 S 2215.43 w 3078.61S ~6 I 23 W O.701 8400"-43 30 ....... 7078.22 ..... 7014,22 542.00W 2188,49 5 ..... 2262.80 w 3147,97 $ 45 57 23 w !.378 ......... 3145- 8500 42 45 7151.20 7087.20 543.00W 2238.88 S 2308.98 W 3216,21 $ 45 52 58 W 0,880 3213.~0 8600'-42 45 7224.6~ 7160~64 545.00W .......2287.7! S' 2356.1~ w 328~.05 $ 45 50 38 W 1,358 328i-';'0~ 8700 ~2 15' 7298,36 7234.36 5~3,00W 2336.31 5 2~03,06 ~ 3351,57 S 45 48 2~ · 1.033 8808-41 .....30 ....... 7372.82 ...... 7308,82 545,00W ........ 2384'"32'~S .... 2~9.43 W 3418,29 5 45'46 17 ~ .... 1,155 .............. 8900 42 0 7~47.43 7383,43 5~3.00~ 2~32,22 5 2~95,68 W 348~.8~ 5 45 4~ 1~ ~ 1.026 ................ ......................................... --'9000"42 .... 0 ...... 7521.? ' 74572-74 ....... $ 3'00W ..... 2 -8i.15 5 ...... 25'41.31 'w 3551.68 $ 45 10 w o.oo0 '-9100 42 15 7595.91 7531.91 543'00W'-2530;21S' 2587.06 9200' 43 30- 7669.19" 7605.19 '543.00W 2579.97-5 .... 2633.46 9300 43 15 7741.88 7677.88 $43.00W 2630.20 S 2680.30 9400--~ ..... 30 ..... 7813.97 7749;'97- 546.00W .... 2679,62 5 ' 2728.87 9500 44 30 7885.29 7821,29 $47.00~ 2727.87 S 2779.71 9600 ~4 k5 7956.~6 7892,46 S49.O0~ 2774.87 S 2831.91 9700 45 0- 8027.33 7963,33 S49.00W 2821.16 S 2885.16 '-9800-45 15 8097.88 ~033-,88 SSO.OOW 2867.18 S 2939.05 9900 45 45 8167.97 8103.97 S51.00~ 2912.55 S 2994.08 10000 46 30" 8237'28 8173'28 551.00W 2957.92 5 3050.10 10100 48 45- 8304.68 8240,68 553.00W 3003.39 5 3108.31 10200-52 45 8367.93 8303'93 557,00W 3047.79 5 3171,72 10300 55 0 8426.88 8362.88 555.00W 3092.96 S 3238.68 _ 10400' 57 45 8482.26 8418.26 556.00W 3140.11 5 3307,29 10500 60 30 8533.57 8469.57 554.00W 3189.34 5 3377.59 10600 61 30 8582.05 ~518.05 558.00W 3238.23 $ 3~50.08 10700 61 15 8629.95 8565,95 S57.00W 3285.40 5 352~.11 10800 61 0 8678.24 861~-2~ 557-00W 3333.09 5 3597.55 10900 61 0 8726.73 8662.73 555,00W 3381.99 5 3670,06 11000'61 0 8775.21 8711.21 553.00W 3433.~0 5 3740.81 11100 60 0 8824.45 8760'45 553,00W 3485-78 5 3810.32 3755.26 $ ,~5 32 25 W 0.250 3750,9! 3824.54 5 ~5 31 i8 W ' 1,933 ..... 3620;-~-- 3694.62 $ 45 32 21, W 3964.80 5, ~5 34 58 W 4035.2~ ,5 45 38 33 W 4105.9~ S ~5 42 32 W ~177.02 $ 45 47 26 W 4248,81 $ 45 52 /+4 W 4322.27 5 45 59 0 W 43~.73 5 46 8 29 ~ 447~,33 S 46 ~9 6 W 4560~54 5 46 29 7 w 4731,73 5 46 48 51 W w818.01 5 47 0 27 W ~904.27 5 47 11 6 w 4990,71 5 47 ~0 20 w 5077.59 S 47 27 12 w 5164.23 5 47 32 48 w 0,701 3890;12 1,022 ..... 396{)-;-":~6 - 0.250 4o30;9i .... 2,518 4316 .... 3,247 0.808 4816.~9 .......... 1,749 4990,02 1,7~9 .... 5077,04 ~,RCO DS ?-12 GYROSCOPIC SURVEY HAY RECORD OF SURVEY .................... ALL 'CALCUEATIONS PERFORHED BY I-B M ELECTRONIC COMPUTER . . ...................... TRUE YEAS, DRIFT VERTICAL SUB DRIFT TOTAL COORDINATES DEPTH'ANGLE DEPTH .......... SEA ........... DIREC O M ......... DEG, 11200 59 0 8875.20 '6811.20' 555,00W' 35]6*42 S 3880.02 W 11300 58 45 ....... 8926.89 ..... 8862;89 ......... $53.00W "3586"'7~ S .... 3949.28 W 11400 58 0 8979.33 8915.33'-$53-00W 3637.98 S 4017.28 11500-58 30 .... 9031'95 8967.95 11600 57 45 908~.76 .... 9020".76 ..... S56.00W 3738.46 S 4154.32 W 11700 57 0 9138.67 9074;67 ..... S56'00W ........ 3785~56 S ..... ~22~.1~ W 11800 56 30 9193.50 9129.50' SS~.OOW ~833.52 S 4292.64 W 11876'-'56'30 ..... 9235J44 9171~44- 554-*00W ....... 3870"77'-S ~343.91 W J I ~' ~.~- ~ :~ ~ ...... $~,~-~ BOTTOM HOLE CLOSURE 5818*29"FEET AT"S 48 17 47 W . _ C L O S U R E S DISTANCE 'ANGLE D M _ 5419.7~ $ 47 50 11W 5504.42 S 47 54 58 w 5588,78 S 48 O 57 W DOG LEG SEVERITY SECTION DEG/IOOFT ...... DISTANCE'- 0,750 0.500 .............. 550'4';~0 2.273 5588'?i 5672,20 5 48 8 3 W 0.750 5672';'-'18 .... 5755.23 S 48 1~ 1W 5818,29 $ k8 17 ~7 W 1.478 575'5;-23 ....... 0.000 ..... 581'8';29 ..... ~RCO DS 7-12 GYROSCOPIC SURVEY qEASURED DEPTH AND OTHER DATA FOR EVERY EVEN 100 FEET OF SUB SEA DEPTH, NAY 79 TRUE MEASURED VERTICAL -SUB MD-TVD VERT !CAL DEPTH DEPTH SEA DIFFERENCE CORRECTION TOTAL COORDINATES 164 264 464 664 764 164. 100 0 0 264- 200 0 0 364, 300 0 0 464, 400 0 0 564' ............ 500 ......... 0 0 664. 600 0 0 764, 700 0 0- 864, 800 0 0 ........ 964 ................ 964" .......... 900 ............ 0 ..................................... 0 ........ 1064 --~1064, 1000 0 "' 0 1164 1164- 1100 0 O 1264. 1200 0 0 1364. 1300 0 0 1464, 1400 0 0 1564. 1500 0 0 1664, 1600 0 0 1764, 1700 0 0 1264 1364 1464 1564 1664 1764 1864 1864. 1800 1964 1964, 1900 2064 2064, 2000 2164 2164. ...... 2100 2264 2264, 2200 2364 2364, 2300 2464 2464, 2400 2564 2564, 2500 2664 2664,- 2600 2764 2764, .... 2700 2864 2864, 2800 2964 2964, 2900 3064 3064, 3000 .. 3164 3164, 3100 3264 3264. 3200 3364 3364,''3300 3464 3464, 3400 3565 3564, 3500 0 0 0 0 0 0 0 0 0 0 0 0 _ 0 0 0 0 0 0 0 0 1 1 0,00 0.00 0.00 0,00 0.00 0o00 0,00 0,00 0,00 0,00 0,00 O.OOS O,OO 0.00 0,00 0,00 0,00 0,00 0.00 0,00 0,00 O,O0 0,00 0,00 0,00 0,00 0,00 0.00 0.00 0-00 0.00 0.41 3.15 11,~0 23,74 0,00 W 0.00 W 0.00 W 0,00 W 0,00 0,00 W 0.00 w 0-00 W -'0',00 0,00 0.00 0.00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 O,O0 0.19 0,86 1e66 1.27 0.90 ARCO DS 7-12 GYROSCOP!C SURVEY MAY 79 HEASURED DEPTH AND OTHER DATA FOR EVERY EVEN !00 FEET OF SUB SEA DEPTH, TRUE MEASURED VERTICAL SUB MD-TVD VERTICAL DEPTH DEPTH SEA DIFFERENCE CORRECTION TOTAL COORDINATES 3666 ' ]664" ........ 3600 2 .............. 1 ...... 38.57 3768 3764° ..... 3700 4 2 55,87 ........ 3870 3864, ......... 3800 6 ..... 2 71.58 ...... 3974 3964. --3900 ' 9 3 92.86 4078 ............................ 4064, .......4000 ............. 14 ........................................ 5 ....................115o§7 418~ 4164° ......... 4100 19 ...... 5 4291 ...... b26b" .......... 4200 ....... 27 8 4401 ....... 4364. ........ 4300 36 .... 9 4514 .... 4464° ..... 4400 ........49 46~1 456b°-' 4500 .... 66 ...... 17 47~2 ..................... 4664° ........ ~600 ............. 87 ...................... 21"' 4878 4764° .... ~700 113 ............. 26 '5010 ......... 4864. bSO0 145 5150 4964, 4900 186 5300 ........ 5064" ........ 5000 .... 236 5456 5164, 5100 '291 55 5612 ..... 5264° ...... 5200'-' 347 ............ 56 5768 ' 5~64. 5300 404 57 . 5926 5464. 5400 462 58 6086 5564, ' 5500 522 60 6245 ......... 5664. ....... 5600 581 .......... 59 6405 ..... 6566 6726 6887 7045 7199 7755 7510 7661 -'7810 7956 8100 82~1 8380 5764. 5700-- 641 60 5864. ..... 5800 702 .... 61- 5964. - -5900 - 762 606&* 6000" 823 616&. 6100 881 6264, 6200 935 6364, 6300 991 6464. 6400 1046 6564, -' 6500 1097 6664,' "6600 1146 6764, 6700 1192 6864, 6800 1236 6964, 6900 1277 "?064, 60 61 58 . 51 7000 1316 140,19 167.92 200.78 238.53 280,29 327, O0 380,16 4~6,74 501,88 575,10 652.10 730,08 806,77 889°96 972.35 1054.~3 1136,39 1223,80 1~11o32 1398.68 1555,40 1646.06 1724,89 1807,14 188q.74 1959,92 2035,17 2107.64 2178,27 5,44 15.01 27'98 43'24 61.88 85.48 112-82 144,0~ 180,70 224.~1 274°20 329.58 467.78 552.76 643,87 734.58 826,81 916,49 1009°94 1103.05 1197.3) 1288,23 1377.2~ 1467o68 1556.06 1640e~2 1728,~7 1816,98 1894.8~ 1973 · 14 2048,49 2118.99 2186,?1 2253°53 ARCO DS 7-12 GYROSCOPIC SURVEY I MAY 79 ~EASURED DEPTH AND OTHER DATA FOR EVERY EVEN 100 FEET OF' SUB SEA DEPTH. MEASURED DEPTH TRUE VERTICAL SUB MD-TVD VERTICAL DEPTH SEA DIFFERENCE CORRECTION TOTAL COORDINATES 8517 ........ 716~, -7100 1353 37 8653 7264. 7200 1389 8788 ................. 736¢. ............ 7300 142~ 8922 7~64. ' "7400 1~58 9057 756~, .......... 7500 .....1~92 9193 ..... 766~' ..........7600' 1528 .......... 9330 ........ 7761, ...... 7700 1566 ........................... 38 ' 9470 ' 786~' ..... 7800 1606 ....... 9610 ............. 7964, ........... 7900'- 1646 .... 10039 10193 10367 .........10562 10770 10976 9752 8064. 8000 '1687 ............. 989~ ........ 816q' ........ 8100 .... 1730 .... 826~* .... 8200- 1775 ........ 836~. ........ 8300 -~1829 846~. 8~00 1902 .............856~. .......8500 1998 866~, 8600 2106 _ . 8764, 8700 2212 11178 8864. 8800 2314 11371 ...... 896~. ........ 8900 .....2~07 11560 906~, 9000 2~96 11-746 ........... 916~' --9100' 2582 41 ~3 45 96 108 106 lOa _ 89 86 2247.30 S 231~.32 $ 2378.68 S 2~2.98 $ 2509.05 S 2576.37 S 2645,17 S 2713o~9 S 2779.49 S 2845.15 S 2909~85 S 2975,70 $ 312½,52 $ 3220o18 S 3318°79 $ 3~20°85 3525°62 S ~719.21S 3807.36 S 2316°88 W 2381°27 W 2~q3,81W 2505.72 W 2567,32 W 2630,11W 2694°~9 W 2764.37 w 2837.23 W 2990,75 W 3072.37 W 3[67°09 W ~284e32 W 3422 e06 W 3575 °54 W 3723.99 W 386q°7! W 3997°60 W 4255°91W ARCO DS ?-12 GYROSCOPIC SURVEY HAY 79 INTERPOLATED VALUES FOR EVEN 1OOO FEET OF MEASURED DEPTH, TRUE HEASURED VERTICAL SUB DEPTH DEPTH SEA TOTAL COORDINATES 1000 1000o 2000 2000, . . 3000 3000. 4000 3989. 5000 4856, 6000 5510. 7000 6134, .............. 8000 6794' 9000 7521, .................. 10000 ................ 8237, 8173; ........... 2957.92 S 11000 8775. 8711. 3~33,40 $ 936. 0,00 & 0.00 1936, 0.00 S 0.00 2936. O.OO $ O.00 3925. ................. 98,56 S - 47,48 4792. /,32.3;I. $ 389.38 5446. ..... 928"05- S .....959.74 6070. 1459,90 S 1531.07 6730. ....... 1982,97 S 2070,3,1, 7457, 2481.15 5 2541.31 3o5o' 1o 3740.81 4OO 8OO I~00 1600 2000 24OO ~00 3~00 3600 VERTICAL SECTION ATLANTIC RICHFIELD CO. GYROSCOPIC SURVEY RADIUS OF CURVATURE SCALE I'= I000' MAY I, 1979 DRILL SITE 7-12 ALL DEPTHS SHOWN ARE TVD. 4000 ~ 4400 k , i 4800 5~~00 ~6~00~ . ~ooo ='~',,oo~ ~ · 6800 ~ · .TzO0 ~ ' 7600 ~ . . 80~ ~ 8800 TVD=9235' ' ~ TMD=11876~ HORIZONTAL VIEW ATLANTIC RICHFIELD CO. GYROSCOPIC SURVEY RADIUS OF CURVATURE SCALE I"= I000' MAY I, 1979 · DRILL SITE 7-12 ALL DEPTHS SHOWN ARE TVD. 8800 TVD = 9235' TMD=11876 840O 76~ 7200 8400 8000 56OO 52OO JoB no ~P I -7~ DATE REPORT and PLAN of SUB'SURFACE SURVEY 7-12.. COMPLETION REPORT 23 APR 79 .ATLANTIC RICHFIELD CO DS 7-12 ..... MAG~ETIC.~S!NG..L_E SHOT. SYRVEY K .B ELEV 64 FT RADIUS ©F CURVATURE METHOD._.OF ,COMPUTATI_ONS D_ECLINAT!ON 31 DE.G], ~AST .COMPUTED FOR ADDCO BY F.M~ LLNDSEY AND.ASSO_C!ATE.S_ ALL.. CALCULAT IONS PERFOR?ED .BY ...... !. .... E.~EC_TRO!',,~.! C COhtPUT~R. ................................ __Q~?TH__.ANG_L_ ~ DEP.TH ............ .S_EA ....... D..I_R.E_C ~ I_ s_ TAN(: E .................. A_N_~.~ Dg~/iQQF_T_ ................. ~..l.~_I3L~ D M ._DEO,_ D M .. ~ .......... 2_.60P. ......... P ..... 0 ........ 2600,.0_0.. ...... 2!36~.0~ N__.O-".gPE .................... P._OO__b .............. ~,.0_.~ W ..... _O_.O0_ .... S_ ........ ~ ........ ~ . (:)W .............. 9.__0._0_0_ .............. O_._O_LC ..... ~.7..0.0. ..... ! ~. ~699~.99 2635,99 _.57790~E _0_,~7 iN_ 0~.59 _E ..... 0,75 .N.. ~..~0 Q E_ ].__,.~Q9. ........................... _-'_0_'._.7.5 31._~Q .......... O ~0 ....... :3~1~9:.95 ..... 3_0.95-"95 Slq...OQE ................ .3._~_3_ 5 .......... q._67. E ....... 5,~6 b _5'.2_ ~_3 2;I, ....... 3327 ..... 3._ 0 3326-"86 .... 3.~6._2....:~6 $14,_00~ ~-".4~._ ~. ....... ~.:90 E ~O.3Z+ S. ~_1. ;].5 E ....... 3.~3_ 7.. 3Q.. ~61~._.9_0__. ,:]. ~ 7_7 ._ 9.0.&._i-".PQ.!~ ......... _2~-"Q6 ~ ..........~_,;I,~.E_ ........... 29~:],. 5_ ..... :1,6_ !.~ ~ ......... ~ .7._9~__..1 ! .... }_~ ..... ~T89 _,, ~..3 .3_7~5, ~3_.._ _~O._OOW ............... 69_.,..1. ]. 5_ ............. _1., 7_]. W .... 67, ]. 4. 5 .... .],. 2,,7..~ _.W .............. 391.8. ].6 30 39].0._~0 38~5_.~0 . &:).7._O()W ......... 9_Q,].~. 5 '16,9~ W 91,72 .S ]-0_..~? .... .2. ..... ~.09__3 ]._7..!..5 ~Q78,70 ..... ~.Q~_~.,_70_ 5~9_.QOW ..... ],_27_._85 5 ............ 46;a]._ W . _1._36,0Z 5 _1_9_ ..... ..5.7.. .,!._~. W ............. ;L_.~_Z,5 ................ _1._!!~ _. 6593..~0. 0 z4535.85_ 6671,85 ._5.6],.._00w .28].,02 ,S' 176..9~- w 33].,03 5 ~]. 5~ i_0_ ..... _50_6.~ 4~.._0 ._../:f9!~._,46 4.8~_Q:~ _.Sq:./-f_.._OO'_W ........... ~8_~_,5__5__.~ .._ _3~4,1._9 ~ ._ _608,5_6. ~..3_6.(+~ '_z,~ __. 5159_45 .]..5 498].93_. 4917._93 S44.0. _0W ..... 534,63..~ _. ~09..65 W. 673,5.3_ S_ _37 27 37 W ...... ?--,._3~6 ............... ~_~, )9~ ..... _577_.8_.__.('t9_.45 5600,Q1 ..... 5_33~._0_]. ..... ~67-".00_W ........ _8..5._~_..39._.5 ..... ?35,.04 W _1127,0_6 S_ qO 62 '_2o ~ __ _63Q_8_._..5_0 0_ _574!.58.._ 5_677;58 S47-"0ow .... 11_3__0_...77.5_ 103!.~42 W !530.52 ,5 42 22 _9 W ....... _6_8.6_.5__ 5_0_ .... _0 .... 6_099,61 ..... 0Q3_~...__6~_ ..... ~47,_.0.0_W_ .....].%2;L_.7.7_,S... ...... _]._3_~,~8 W' !.956.12 $_~3 .2_~_~.~ 0.000 1945~ 71.00_5Q 0 6250,66.. 6186.6~ ..$47.00w !5_4~._sz.f. s ].z+75:14 W '_Z.1.~5,8]. ,S z+.3 z.+], 0 w ..... 8~55_._~ ..... 0 ...... 7].7~_.35 ....... 7_]._,10_..~_5_ ........ ,S_~3,_o__ow _.2_2.~z+~81_ 5._ 2]._75_:~ _vi . _3]._;~,95.. &..~q__ _6.... ~__~,~ .... 8_7:55_.~2_. 0 7393.75 7329,75 S~z.+,.O_.OW ..... 239_3;22 ..S_. 2~3_].6,2~ w 33.3. o,5_~ ~_.4..~ ..... ._3_ ,:f~.,,,,] 9385 43 30 785 99~7 ~5 0 825 11746 55 15 926 11887 55 15 936 6_.36 77_9_2,56 .548~OQW 2690,_21 _5 _~6~3,79 W 3757.,~6 ~ q4 17 8.91 8!9499]._ S55_.00W. _29.3.4.,_.18 5._ 2930,50 W . z+].46,95 $ ~g '5_7 50 8,10 9204__.!0 S59,00W . _3 7 .2_ 3 ,_ _9 ~ S 4!87:73 W 5604,01 S Z, 8_. 21 17 W 8.47 92_84_,Z~7 sso,Oow _. ~..7_a3_?~!. _s_ ~,gSv...Oz+ W _. 57_].7_..9.0 _& g_8. 3_~+ .9 W_ BOTT OM-' HOLE cLOSURE 571-/,90 FEET 'AT-'S-48-36 9"w ARCO MAGNETIC SINGLE SHOT SURVEY 2 3 APR -/9 !~!E.ASUR. 6. D DEPTH AND OTH_ER DATA FOR EVERY EV~.N.. _1_00 FEET.OF SUB SEA DEPTH, TRUE MEASURED VERTICAL SUB MD.-TVD '._ii.. ".D~?TH. .... :.__SEA D_I. FF. EF~E~CE_ C_O.R_.~_E~T_IO.~! 'i.To_TAL COORD ............. !64 . 164, ....... !00 0 264 264 .......... · 20Q .................... 0 ............................ 3..6_{+ 364, ............ ~ ._0..0 ..... _0 ..................... 5~_~ ............ 5~, ........._500 764 76~,_ ............. 7.00 ....... ............................... _.86~ ....................... 86~,_ .... BOO .... __0. .................. O ..................................... 0,00. & ................. 0,0~ ~ .............................. _. ................................ 964 ............ _96~ ,. .......... 90..0. ......... ....................... _!!~4 ........ ~!6~_- ......!!00 .... 0 ..................... : ........ 1_ 2._6. 6 .................... ~ 26 ~ ,_ ............... 1. ~ O_ O. ............... _0 ............... _13~4 .... 136~,_ ........ 1300 0 0 ...... 0,00 ,S _ 0,00 W ........ 1~564 ...... _156~,_ ......... _1._5_0_.0_ ........ 0 ......................................... 0 OtO0 S. ......... 0__,0_0 ~ ................................................... ~664 .............................................. _1664,_ ..... 1~_.00 ......... 0 ................... 1_76~ ................ ~764_, .......1_700 0..._ ............................... _0 ....................... 0;00 S ...... .0~0_0 ~ . ........................................................ ............................ 1864 :!.86~, :[8 0 0 O_ ........ !96~ . . ~966: ._ .~9o0 ......... 2!64 ......... 2!647 2100 Q .......................... 0 .......... O, ................ 8264 ............. 226~, .......220Q ...... 0 ....................... 0 ................ O. 2364 2364. 2300 0 .......... 0 O, .................... ............. 2454 ................ Z~6~, ........ 2~00 _ .. 0 ............................ ~ ................ O, ..... 2~64 2564,. 2500 0 2664 266~? ........ ~00 2764 2764. 2700 __ O .................... 0 ............. o, ......... ~964 . . 2964? 8900 0 ....... 3064 . 3064~ _ _3000 ._ 0 ......................... Q .......................2,56 3!64__. 3164. ~!00 0 ........ D 3,57 3364 3364? 3300 0 .......... 0 ...... 10,61 ............. 3465 ...... 346~? ..... 340Q ..........0 ........................ 0 .................. 18,97 3565 356~. 3500 1 . . 1 30,99 ........... 0.'0 O0 00. O0 O0 !5 .5 ....... 0,00 .W ...................................... ~ _ 0,00 W ........................................... $ ...... 0.00 ~ .......... $ ...O.QO W .............................. 5 ........ Q,~.~ W S 0,00 W ............................ N ...... 0~18 E .... N .......1,62 E _. S 2,95 E ........ S ._.3,91 E ........................... 5,23 S 6,~9 7,61 E A.;o, CO MAGNETIC SINGLE SHOT SURVEY 2 25 APR 79 ~"~A~UR[D DEPTH AND OTHE.R DAT~,FOR ~VERy .~V~H ~00 F~'E~T.OF su~ S~A DEPTH~ eAUu ~EPTH BEPT~ ........~_g~ .... ~ ! F.F_~B ~(~_. ............. gQRRECT 1QN T..OTAL C~O!:~D INA.TgS ~70 ............. 3864, ........... ~SQ0 ............... 6 .......................................... ................. 4290 ................ 4~.~ ............ ~.~OQ ............ ~F .......................................... 5276 506~. 5000 212 ~3 59~.7~ 669 557! ........... 526~, .... 5200 .... 307 ......................... 5.a77 5~6~. _ 5~00 . ~13 ......... 6157 5664, 5600 523 55 ................. ~3.43 ............ 5764, ..5700 _~79 6~98 5864. 5800 634 55 6~09 6064. 6000 745 55 6965 6154. 6100 801 56 7121 6264. 6200 857 55 7427 6464. 6400 9~3 ...... 52 1230.03 1392.5! 1474,0! .._ 1555,~7 !!~7~7 122~,27 1~12,11 1572,21 1655,09 . · . ..... 7577 .... 6564. ...... ~_500.. _ . 7725 6664. 6600 ~O61 ...... 4~ . . 1~69,9B 7872 6764. 6700 1108 47 1945.70 aO16 6864. 6800 ~!52 ............ 8!~ ........ 6~64. ....... 6900 ..~?~ .... 8301 706~. 7000 1237 .... ARCO MAGIX~ETIC SINGLE SHOT SURVEY 2 3 APR 79 ~'.!EASL_~R.E.D. DEPTH AND OTHER DATA FOR ~VER¥ .E.'V.E_[~I 1QO FE~T.G,F SUB YEA DEP]'H, ............. ~'~ B.A_ SU.R E_D VERTICAL .SUB.. M D-T v.D. VERTICAL ~E_._P.T._H DE_PTW .... _S._F.A_ D.!ffEE_.R.E__BC_E_' ........... gO_g. Rg.g_T!O__r! ................. TOTAL gO~RD !.N&T--.B& ....................... 8.~.7_9.. ........................... 72~4,_ ........... 7gOQ .......... :[_3. ii_ ~ .................... _3_8 ........................... 2'307_, gl. 871..5 ................ 736z+.: .......... 7_3.00 ...... 1~51 ~6_ .......... 23. 7;~., .8~ S .................... 8985 ............. 756/~, ....... 75.00 ....... 1421 .................. 3~ 2503.16 S 2~2.B,18 W ............................................................. )-- ....................... ~_~?.~ .................................... a....o ~...: ............. ~ 0._0_0_ ...... ! 6_?? ................................ .~. ~ ........................................ ~_ S ! ?, _0. ?_ ~o~ ~6~. ~00 ~a?o 7..~ ~l~, S ;~2~_.00 W .................. ~(_)~.2_.ii ............... 876~._ ......... ~70~. 20~7 ...................... 95_ ................ ~$~0~o2 s ...~5.2_.5~_~9 '~_ .......................................... ................... ~__~ _0_~ ~ ............... 886~_. ............. 88_00. __ _2 .],~.7_ ........................ ..9...0_. ............................ $,.0.~._ ~. ~ ......... _11~_,~ 896~+_. ..... 8900 223~+ ..............8.7 ..... ~7.96 $ ~798~2~ w ............................................. ................ ~.~ i~_ 2 ...................... 9.0~ ~ ....... 9.000 ..... 2~ .8__ ................... 8_.~ .................................. ~_5~, 0_~_ $ ........ ~929 ~ ~_~ 11562 9.1_64, ...... _9.1_0..0_. 239.8. .......................... B_O._ .................. )6z+5,6z+ ............... ~ 1_ 73a ................. 92_ 6.~ ,. ...... 9.2_00 .... Z ~'/_. ~ .......................... 7~ .................... 3720°5.5 S ARCO tdAGNETIC SINGLE SHOT SURVEY .................. TRUE MEASURED VERTICAL SUB 2 3 APR 79 ......................... B_EPItrt ................ DEPTtt .................... SEA ................... I.QIAL ....... 600.f~B INATES ................................................ · .......... 2..0.00 ~000 39~!, ........ ...... ..6.000 !5~_. ............ 70_00 .................... 9_0g_0 ..... 19000 S295.~ · ATLANTIC RICHFIELD CO. 400 ................. DRILL SITE 7-12 ................... MAGNETIC SINGLE SHOT " soo ............ RADIUS OF CURVATURE ................................................................................................................... SCALE !"'= I000" ~200 ................................... APRIL 26, 1979 1600 _ 2000 .... 2400 ................................. ..ALL_... DEPTHS SHOWN _ ' _.' ............. ARE TVD 2800 3200 ............. ................ $600 ...... ' .. . ..... ................................ 4000 .... - 5200 6800 _: ..... - 1'600 88OO ................... s2oo TVD :9348' ......... TMD=11887' HORIZONTAL VIEW ATLANTIC RICHFIELD CO. _-:.:.-'-_-'-:::'::DRILl.;: SITE 7'12 MAGNETIC SINGLE SHOT _. RADIUS' OF CURVATURE _ . .... SCAL;,E:_-~t.~ .=, i000~ APRIL 26, 1979 - . .................... . ... 5200 3400 ............ .... 7Eoo .................. ALL DEPTHS SHOWN I . _ ............... _ [:: :'.'[':~ ........... 7600~- ---[_ ..............-[" ~' -:"~'.'-_ ::'i ......... ~'-'[ ARE- TVD: .... _ 8400 8800 TVD=9348' ' -' '" ...... : TMD=11887' Ati&nticRichfieldCompany North American Producing Division North Aia 'Hstrict Post Offic,~ po× 360 Anchorage, Alaska 995'~0 Telephone 907 277 5637 April 4, 1979 Mr. Hoyle H. Hamilton State of Alaska Department of Natural Resources Division of Oil and Gas 3001 Porcupine Drive Anchorage, Alaska 99501 Subject: 'Permit No. 78-79 Permit No. 78-63 DS 14-7, Permit No. 78-66 Dear Si r' Enclosed please find a Monthly Report of Drilling Operations for the above-mentioned wells. Very truly yours, P. A. VanDusen District Drilling Engineer PAV: c s Enclosures Form;No. P-4 REV. 3- 1-70 SUBMIT IN DUPLICATE STA''l E O F ALASKA OIL AND GAS CONSERVATION COMMITTEE MONTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS OIL ~-~ GAS ~-~ WELL WELL OTHER 2. NAME OF OPERATOR Atlantic Richfield Company 3. ADDRESS OF OPERATOR P.O. Box 360 Anchorage, Alaska 9951 0 4. LOCATION OF WELL 746'5 & 265'W of NE cr Sec 33, TllN, R14E, UM 5. APl NUMERICAL CODE 50-029-20337 6. LEASE DESIGNATION AND SERIAL NO. ADL 28309 7. IF INDIAN'ALOTTEE OR TRIBE NAME 8. UNIT FARM OR LEASE NAME Prudhoe Bay Unit 9. WELL NO. DS 7-12 10. FIELD AND POOL, OR WILDCAT ~rudhoe Bay Field-Prudhoe Oil 11. SEC. T. R. M. (BOTTOM HOLE OBJECTIVE) Sec 33, TllN, R14E, UM 12. PERMIT NO. 78-79 Pool 13. REPORT TOTAL DEPTH AT END OF MONTH, CHANGES IN HOLE SIZE, CASING AND CEMENTING JOBS INCLUDING DEPTH SET AND VOLUMES USED~ PERFORATIONS, TESTS AND RESULTS FISHING JOBS JUNK IN HOLE AND SIDE-TRACKED HOLE AND ANY OTHER SIGNIFICANT CHANGES IN HOLE CONDITIONS. Report of Operations for the Month of March, 1979 Spudded well @ 1400.hrs 3/28/79. Drld 17-1/2" hole to 2730'. Ran t3-3/8" csg w/shoe @ 2706'. Cmtd w/5000 sX Arcticset cmt. As of March 31, installed & tstd pkoff. 14. I hereby~at th~~ct SIGNED~- ~ TITLE District Drilling Engr. DATE 4/4/79 NOTE-Report on this form is required for each calendar month, regardless of the status of operations, and must be filed in duplicate with the oil and gas conservation committee by the 15th of the succeeding month, unless otherwise directed. Alaska Oil and Gas Conservation Commission ,' Hoyle H. Hamilton 'ffff~' April 3, 1979 Chairman of the Commis~io~v~ Lonnie C. Smith Commissioner Ben LeNorman Petroleum Inspector BOPE Test on ARCO's DS 7-12 Sec 33, TllN, R14E Drilling Permit #78-79 Wednesday, M~.rch 28 I departed my home at 10:00 AM for a 10:30 AM showup and 11:30 Akl departure via Wien Flt #9 for Deadhorse arriving at 1:30 PM. Accom- panied by Bobby Foster, I proceeded to Veco and arranged for lodging and a rental vehicle. Meters were proved at Pump Station #1 later that evening. ___~.urpd~y, Mmrch_29 -I assisted in retesting seven SSSV's for SOHIO-BP, the subject of a separate report by Bobby Foster. ~ridaY,....March 30 - Annulas pressures checked and SSV's, SSSV's, and low pilots tested on nine wells at ARCO's Drill Site #4, the subject of a separate report. Saturday, March 31 - B.O.P.E. tests on DS 7-12 began at 2:00 AM with the shoe on"t~'e ~ 3/8,, a~ 2706'. Upper pipe rams, check valve in the kill line, and HCR valve in the choke line tested to 5000 PSIG. Outside wing valves on the choke and kill lines tested to 5000 PSIG and then the inside valve on. the kill line tested to 5000 PSIG. Thirteen valves and twenty-six flanges in the choke manifold tested to 5000 PSIG. The Swaco superchoke was actuated fully opened and fully closed and the manual adjustable choke was free moving. The annular preventer tested to 3000 PSIG and the lower pipe rams tested to 5000 PSIG. Accumulator pressure was 3000 PSIG. The pumps were turned off and the }ICR valve opened and both pipe ram preventers and the annular preventer closed simultaneously. Accumulator pressure dropped to 1200 PSIG and remained steady. The pumps were then turned on and accumulator pressure built 250 PSI in one mirmte, five seconds. ~2 backup bottles tested 2350, 2375, 2100, and 2350 PSIG. ~.~ile backing out of the test plug I tqured the location which was well organized, rig in good repair, reserve Pit well built, and the well sign in place. Blind rams then tested to 5000 PSIG. Kelly cock and lower Kelly valve tested to 5000 PSIG and both dart and ball type floor valves were in place before the draw-works. Tests were concluded at 3:45 AM and a field inspection report completed with a copy given to Shorty Allen, Drilling Foreman, a copy mailed to Bob Hines, and the original attached to this report. I then proceeded back to ARCO base for continuing SSV and SSSV tests on Drill Sites #3 and #4, the subject of a separate report. BO?E Test om ARCO's DS7-I2 2 April 3, 1979 ~?~d~M~ .~pril! -Standing by on DS 14-7 for upcoming B.O.P.E. tests, the subject of a separate report. ~!pndaY,~Apr~l__~- B.O.P.E. tests completed on ARCO's DS 14-7 at 11:15 A~. I departed Deadhorse via Wien Flt #i0 at 1:50 PM arriving in Anchorage at 3:30 PM and at my home at 4:00 PM. In sum~ry, I witnessed successful B.O.P.E. tests on ARCO's DS 7-12. A :a Oil and Gas Conservation Commi Field Inspection Report Drlg. Permit No.~~ ~,~'~V Well/P~m Secgj)~'T~R/~d~,_~_M Operator ~ ~. Represented by ~.~?_.~.~-~ Name & Number Satisfactory Type I n s~e~c'~F~Fo~nJ /~;~'~ ~~a t~~'~sfactory~'}~'~ Type/SU~~~'~ ~inspection Yes (~() (~)~. ( ) (~() (~() () () () () () () () () () () () () () () No Item (~ocation,General I. Well Sign 2. General Housekeeping ~. Reserve Pit-( )open( )filled 4. Rig ( ) Safety Valve Tests 5. Surface-No. Wells 6. Subsurface-No. Wells ( ) Well Test Data 7. Well Nos. , , , 8. Hrs. obser , , , 9. BS&W , , , 10. Gr. Bbls. ( ) Final Abandonment 11. P&A Marker Yes (~() (~() (~() (~)~ ( ) (~() ( ,~.~( ) ( () (~() (.~ ( ) (~)~ ( ) (~() (~() (~)~ ( ) (~() No Item (,~I~BOPE Tests 15.13-~,~/~C f 1 i n ~as set ui~J-( )wtr.----~ )mud (~oil 16. 17. Master Hyd. Control Sys.~oc~,psig 18. N2 btls.~~,~/~.~~ iq 19. Remote Controls 20. Drilling spool- ~ "outletS 21. Kill Line-(~Check valve 22. Choke Flowline (~HCR valve 23. Choke Manifold No. valvs/~flms~, 24 Chokes-(~mote( )Pos.(~dj] 25. Test Plug-(~ellhd( )csg( )none 26. Annular Preventer.~psiu 27. B1 ind Rams.~.~si~ 28. Pipe Rams~~ ( ) ( ) 12. Water well-( )capped( )plugged (~ ( ) 29. Kelly & Kelly-cock~-~-~psig ( ) ( ) 13. Clean-up (~)~ ( ) 30. Lower Kelly valve..~.~y~..)psi~ ( ) ( ) 14. Pad leveled _.~/ (~)~ ( ) 31 Safety Floor valves--L~- ~ ~d~Fart Total inspection observation time/~hrs/d~D~s Total number leaks and/or equip, failures ~ Remarks Inspected by Notify in days or when ready ALASKA OIL & OhS CONSERVATION CO~MISSIOt4 3001 Porcupine Drive Anchorage, Alaska 99501 February 5, 1979 Re: Prudhoe Bay Unit DS 7-12 Atlantic Richfield Company Permit No. 78-79 Mr. P. A. VanDusen District Drilling Engineer Atlantic Richfield Company P. O. Box 360 Anchorage, Alaska 99510 Dear Sir: Enclosed is the approved revised: application for permit to drill the above referenced well at a location in Section 33, To~ship liN, Range 14E, UPH. Well samples, core chips and a mud log are not required. A directional survey is required. If available, a tape containing the digitized log information on all logs shall be submitted for copying except experimental logs, veloc- ity surveys and dipmeter surveys. Many rivers in Alaska and their drainage systems have l~en classified as important for the spawning or migration of anadromous fish. Operations in these areas are subject to AS 16.50.870 and the regulatations promulgated thereunder (Title 5, Alaska Administrative Code). Prior to commenc- ing operations you may ~ contacted by the Habitat Coor- dinator's office Department of Fish and Game. Pollution of any waters of the State is prohibited by AS 46, Chapter 3, Article 7 and the regulations promulgated thereunder (Title 18, Alaska Administrative Code, Chapter 70) .and by the Federal Water Pollution Control Act, as amended. Prior to commencing operations vou. z may be con- tacted, by a representative of the Department of Environmental Conservation. Pursuant to AS 38.40, Local Hire Under State Leases, the Alaska Department of Labor is being notified of the issu- ance of this pe~it to drill. t~ro P. A. VanDusen Prudhoe Bay Unit DS 7-12 -2- February 5, 1979 TO aid us in scheduling field work, we would appreciate your notifying this office within 48 hours after the well is spudded. I~.Ye would also like to ~ notified so that a representative of the commission may be present to witness testing of blowout preventer equipment before surface casing shoe is drilled. In the event of suspension or abandonment, please give this office adequate advance notification so that we may have a witnes~ present. Very truly yours, ~oy!e H. Hamilton Alaska Oil & Ga~ Conservatien Commission Enclosure cc: Depa~tmen~ of Fish and Game, Habitat Section w/o enclo Department of Environmental Conservation w/o/encl. Department of Labor; Supervisor, Labor Law Compliance Division w/o encl. ¢;, ti~.nticRich¢ie~d Come, any Nor~i"i American Producing Division N,o~th Al~,.~ka ~°trict Post Office ;!~; 380 Anchorage, Alaska 99510 Telephone 907 277 5837 January 25, 1979 Mr. Hoyle Hamilton State of Alaska Department of Natural Resources Division of Oil and GaS 3001 Porcupine Drive Anchorage, Alaska 99501 Subject' DS 14-6, DS 7-11, DS 7-12, and DS 7-14 Dear Mr Hamilton' Enclosed find our revised Permit to Drill for the above mentioned wells. These permits replace those previously submitted. Very truly yours, P. A. VanDusen District Drilling Engineer PAV' cs Enclosure Form 10-401 ' REV. 1-1-71 SUBMIT IN TRi kTE (Other instructi,~..o on reverse side) STATE OF ALASKA OIL AND GAS CONSERVATION COMMITTEE PERMIT TO DRILL OR DEEPEN la. TYPE OF WORK b. TYPE OF WELL OIL~-I GAS V-q WELL IAI WELL I ] OTHER 2. NAME OF OPERATOR Atlantic Richfield Company 3. ADDRESS OF OPERATOR P.O. Box 360 Anchorage, Alaska 99510 DRILL [] DEEPEN r--] SINGLE ~ MULTIPLE ZONE I i ZONE 4. LOCATION OF WELL Atsurface746, S & 265'W of NE cr Sec. 33, T11 N, R14E, UM At proposed prod. zone1 320' N & 1320' E of SW cr Sec. 33, T11 N, R1 4E, UM 13. DISTANCE IN MILES AND DIRECTION FROM NEAREST TOWN OR POST OFFICE* 5 miles NW of Deadhorse, Alaska API 50-029-20337 6. LEASE DESIGNATION AND SERIAL NO. ADL 28309 7. IF INDIAN, ALLOTTEE OR TRIBE NAME 8. UNIT FARM OR LEASE NAME, Prudhoe Bay Unit 9. WELL NO. DS 7-12 (xx-33-11-14) 10. FIELD AND POOL, OR WILDCAT Prudhoe BaS Field-Prudhoe 0il Pool 11. SEC., T., R., M., (BOTTOM HOLE OBJECTIVE) Sec. 33, TllN, R14E, UM 12. 14. BOND INFORMATION: TYPE Statewi de Surety and/or No. Federa 1 15. DISTANCE FROM PROPOSED * LOCATION TO NEAREST PROPERTY OR LEASE LINE, FT. (Also to nearest drig, unit, ff any) 1320' 18. DISTANCE FROM PROPOSED LOCATION TO NEAREST WELL DRILLING, COMPLETED, OR APPLIED FOR, FT. 2640' 21. ELEVATIONS (Show whether DF, RT, CR, etc.) Pad Level - 30' RKB - 64' Insurance Co. #8011-38-40 Mnount $100,000 16. No. OF ACRES IN LEASE 2560 19. PROPOSED DEPTH ll ,323'MD 17. NO.ACRES ASSIGNED TO THIS WELL 160 20. ROTARY OR CABLE TOOLS Rotary 22. APPROX. DATE WORK WILL START March, 1979 23. PROPOSED CASING AND CEMENTING PROGRAM , . SIZE OF HOLE SIZE OF CASING WEIGHT PER FOOT GRADE SETTING DEPTH Quantity of cement 32" 20" 94 lb. H-40 80' 250 sx Permafrost II to surf 17-1/2" 13-3/8" 72 lb. MN-80 2700'MD Circ to surf (approx 5500 sx) 12-1/4" 9-5/8" 47 lb. 80&95 11,323'MD 2600' + cmt column on 1st st§ (approx 1500 sx)plus 300' + colu~ on 2nd stg (approx 300 sx) .......... ~ ~ ~.~ i ..~ ~, t-,~,t-, i ..~ iiln Atlantic Ri:hfield Company proposes to directionally drill this well to 11,3~3 MD, 9292 TVD to produce the Sadlerochit zone. Logs will be run across selected intervals. A 13-5/8" 5000 Psi RSRRA BOP stack will be used. It will be pressure tested each week and oper- ationally tested each trip. A string of 5-1/2" 17# N-80 tubing, packer, and necessary pro- visions for subsurface safety equipment will be run. The packer will be set above the Sadlerochit. A non-freezing liquid will be left in all uncemented annuli within the perma- frost interval. Selected intervals within the Sadlerochit interval will be perforated, and reported on subsequent report. A 5000 psi WP wireline lubricator, tested to working pressure, will be utilized with all wireline work. Well will be flowed to production facilities during perforating and testing. The downhole safety valve will be installed and tested upon conclu- s i on o f j o b. L~ ABOVE SPACE DESCRIBE PROPOSED PROGRAM: If proposal is to deepen give data on.present productive zone and proposed new productive zone. If proposal is to drill or deepen dffectionally, give pertinent data on subsurface locations and measured and true vertical depths. Give blowout preventer program. 24. I here~hat the Fore~$oing is T.,gue and Correct (This space for State office use) SAMPLES AND CORE CHIPS REQUIRED [] ',~S ~[j~. O DIRECTIONAL SURVEY REQUIRED [] NO CONDIgONS OF APPROVAL, IF ANY: MUD LOG [] YES ~ NO TITLE Dist. Drlg. Engr. OTHER REQUIREMENTS: A.P,I. NUMERICAL CODE ,3-0 "~ ~ 9 - z '~ 2 3 7 PERMIT NO. q8- 7 ~ APPROVAL DATE APPOVED BY ~~' ~ TITLE. C~airman ~' ' ~ ~' ' ~ *See Instruction On Reverse Side DATe 2/5/79 31, 1978 ~ B~_I I~it DS 7-12 (XX-27-11-14) Atlantic Richfield ~y Penmit ~. 78-79 P. Ao Van ~ Atlantic Richfield ~y P. O. ~ 360 Anchorage, Alaska 99510 ~ar Sir: ~!osed is ~ app-~ appltcaticm f~r ~t to drill the ~ referenced well at a location in Section 27, Towns~p liN, Range 14E, U.M. Well ~les, core c~ps, ~ a ~ log are not ~req!uLred. survey is requJ~ed. A directional ~ry rivers in Alaska ar~l their dra~ ~3~~ Dave been classified as ~t for tbs spawning or migration of anadrc~ous fish. .Operations in t~hese a~eas ~ ~ject to AS 16.50.870 ap~] the ~.z~ons prc~algatg~t ~r (Title 5, AlasP~ ~strative Code). Prior to ~ncing op~_rations ~ m~y be contacted by ~ Habitat Coordinator's office, De~t of Fish ~ Gains. ~llutic~ of any waters of ~ S.t~- te is prohibite~. ~I ~ 46, Chapter 03, Article 7 ~ ~ r ~egulatic~s ~gated thereur'~ler (Title 18, AlasP~ Administrative ~, ~ 70) and by the Federal Water Pollution Control ~, as ~. I~ior to ~cing cf~_rations .you r~y be contacted by a rep_ resentati-~ of ~ DeFer of Envi~tal ~ation. Pursuant to/kS 38.40, ~ Hire Uncl=_r State Leases, the A]~aska De~t of ~ is ~~ notified of the issuance of this permit to ctrill. .mo aid us in sck~ling., field ,t~rk, v~ v..~uld aIR~reciate your notifying this office, withJ3~ 48 hours a_~ter tjae well is spudded, i:,~e %~oul¢!. also lJl:e to. be notified so that a repre~ntative of ~ Division ~ay be present ~o v:~tness testing of blowout p~venter _~e~.~ '~nt ~fore ~drface casin~..~, sb.oe is drille~. P. A. VanDusen F~UDS 7-12 E -2- October 31~ 197~ In th~ e%~_nt of ~icn or abanckmx~ent please give this office adequate adva~ notificatic~ so that we may have a witness present. Very truly yours, ~k~jl~~''H. ~lt~n Alaska Oil ~ G~ Cc~servati~ ~tt~e Depa~~t of Fish and ~, Habitat Section w/o encl. Departmsnt of En~r~tal Cc~~~ w/o encl. Departmsnt of Labor, Supervisor, Labor Law Ccmpliance Divisi~l w/o ex~l. Aflan!icRichf?ldCompany ~- North Ameri¢-~- Producing Division Alaska Regi(~_ Post Office Box 360 Anchorage, Alaska 99510 Telephone 907 277 5637 October 13, 1978 Mr. Hoyl e Hamilton State of Alaska Department of Natural Resources Division of Oil and Gas 3001 Porcupine Drive Anchorage, AK 99501 Subject' DS 7-12 thru 7-14 Dear Mr. Hamilton: Enclosed herewith is our Application for Permit to Drill, the $100.00 fili.ng fee, and the'reqUired survey plat for the above- mentioned wells Very truly yours, P. A. VanDusen District Drilling Engineer PAV:jh Enclosures Form 10-401 REV. 1-1-71 STATE OF ALASKA OIL AND GAS CONSERVATION COMMITTEE PERMIT TO DRILL OR DEEPEN OTHER la. TYPE OF WORK DRILL [k-] b. TYPE OF WELL GAS DEEPEN [] 2. NAME OF OPERATOR Atlantic Richfield Company 3. ADDRESS OF OPERATOR P. O. Box 360,-Anchorage, Alaska 4. LOCATION OF WELL At surface 13. 14. SINGLE ZONE [--'] 99510 746'S & 265'W of NE cr Sec. 33, T11N, R14E, UM At proposed prod. zone 1320'S & 1320'E of NW cr Sec. 27, TllN, R14E, UM. DISTANCE IN MILES AND DIRECTION FROM NEAREST TOWN OR POST OFFICE" 5 mil es NW of Deadhorse, A1 aska. BOND INFORMATION: Statewide Federal Insurance TYPE Surety and/or No. Co. #8011-38-40 SUBMIT IN TRI}. ~TE (Other instructions on reverse side) MULTIPLE F-1 ZONE L__J API # 50-029-20337 6. LEASE DESIGNATION AND SERIAL NO. ADL 28309 7. IF INDIAN, ALLOITEE OR TRIBE NAME 8, UNIT FARM OR LEASE NAME Prudhoe Bay Unit '9. WELL NO, DS 7-12 (xx-27-11'-14) · 10. FII~J~D AND.pOOL, O~,WILDCAT Prudhoe Bay I-lC PrudhnP Oil Ponl 11. SEC., T., R., M., (BOTTOM HOLE OBJECTIVE) Sec. 27, T11N, R14E, UM 12. A~nount $100,000 15. 18. 21. DISTANCE FROM PROPOSED * LOCATION TO NEAREST PROPERTY OR LEASE LINE, FT. (Also to nearest drig, unit, ff any) DISTANCE FROM PROPOSED LOCATION TO NEAREST WELL DRILLING, COMPLETED, OR APPLIED FOR, FT. 1320' 2640' ELEVATIONS (Show whether DF, RT, CR, etc.) Pad Level - 30' RKB - 64' 16. No. OF ACRE IN LEASE 2560 19. PROPOSED DE~H ll,086'MD 17. NO.ACRES ASSIGNED TO THIS WELL 160 20. ROTARY OR CABLE TOOLS Rotary 22. APPROX. DATE WORK WILL START March 1979 23. PROPOSED CASLNG AND CEMENTING PROGRAM SIzE OF HOLE SIZE OF CASING WEIGHT PER FOOT GRADE [ SETTING DEPTIt Quantity of cement , 32" 20" 94 lb. H-4'O t 80" 250 sx Permafrost II to surf 17-1/2" 13-3/8" 72 lb. MN-80 t 2700'MD Circ to surf (approx 5500. sx) 12-1/4" 9-5/8" 47.1b. 80&95 i 11,086'MD 2600'+ cmt column.on 1st stg . .. " i (approx 1500 sx) plus 300'+.c.olU~ '' t on 2nd.st9 (appro_x~ 300 sx) . At]antic Richfield Company proposes to directiona]]y drill this we]] to ll,086'MD, 9084 IYD to produce the Sad]erochit zone. logs wi]] be run across selected intervals. A 13-5/8" 5000 psi RSRRA BOP stack wi]] be used. It wi]] be pressure tested each week and operationally tested each trip. A string of 5-1/2" 17# N-80 tubing, packer, and necessary provisions for subsurface safety equipment wi]] be run. The packer wi]] be 5et above the Sad]erochit. A non-freezing liquid wi]] be ]eft in ail uncemented annu]i within the permafrost interval. 5elected intervals within the Sad]erochit interval wi]] be perforated, and reported on subsequent report. A 5000 psi WP wire]ine lubricator, tested to working pressure, wi]] be utilized with ail wire]ine work. We]]'wi]] be flowed to production facilities during perforating and testing. The downho]e safety valve wi]] be installed and tested upon conclusion of 3ob. IN ABOVE SPACE DESCRIBE PROPOSED PROGRAM: If proposal is to deepen give data on present productive zone and proposed new productive zone. If proposal is to drill or deepen direcfionally, give pertinent data on subsurface locations and measured and true vertical depths. Give blowout preventer progxam. 24. ! hereby certjf~ that the Forgoing is True and Correct DATE /~//,~,/'ff~/ ~"i TITLE Dist. Drlg,, Engr. (This space for State office use) CONDITIONS OF APPROVAL, IF ANY: SAMPLES AND CORE CHIPS REQUIRED [ MUD LOG [] ws [] NO [ [] v~s [] NO DIRECTIONAL SURVEY REQUIRED [~ YES [] NO OTHER REQUIREMENTS: A_PA. NUMERICAL CODE ) ~/ 50-029-20337 ~'~~ber , APPROVAL DATE 31, 1978 PERMIT NO. 78-79 APPOVED BY~~~' ~_ _ ,. ,. TITLE Chairman *See Instruction On Reverse Side DATEOC°coD~r '31r ]q7R. SECTION PR OTRACTED 28 SECTION SECTION LINE 27 i- ! ~ !~\~ 240' :--~--- 0 I 0 ~\i I "' ~, 67'~ o ~.o SECTION 33 '~ ~-~-;;~-~">-~ SECTION NOTE : JANUARY ii, 1978 -- CORRECTEb PAD CONFIGURATION DRILL SITE No.7 T IIN,R 14E. U.M. 34 CERTIFICATE OF SURVEYOR I HEREBY CERTIFY THAT' AM PROPERLY REGIST~R£~, AND LICENSED TO PRACTICE LAND SURVEYIN(~ THE STATE OF ALASKA AND THAT THIS PLAT REPRESENTS A LOCATION SURVEY MADE BY ' ORUNDER MY SUPERVISION, AND ALL SIONSAND OTHER DETAILS ARE CORRECT. DATE SURVEYOR L ~, ' 0 F CO0£D//VA T£$ Fo~ WELL $ ~/ - ¢~/4 ,AS-DULL T WELL NO. / LAT 7o~ /5' :57 4Z/" Lo~. /48" ~4' 2.9.965" WELL NO. Z ~ LA7~ 70° 15' 58 5~0" LO/v/6 /48° 34' 30. 668" WELL /VO. 5 LAX 70~ /5' 5~ 737" L.O#6/48" 34' 3~. 4Z4" WELL No. 4 LAT. 70" ~,v~. /4~ ° 34' ~. WELL /Vo. 5 ~ LAT. 7o~ 16' OZ. 045" Lo/v'6. 148 o 34- 3Z. B 78 LAT~ 700 16' 03.20/" mN6. 148 ° 34 ' 33. 598" L NO. 7 ,, LATF 70 ° ff~' 0~. ~54 Lo/cO. 148 °34'34.327" WELL NO. /.AT 70°/6 Lo/cO 148 o34 LAT. 70 * 16 Lo,v~. /48°~4 W£LL NO. LAT 70 ° /b ~o~. /48 ° 54 8 05. flOG" 35. 048" 9 06.6 6~." 35. 799" /0 ' o7. 8lb" ' 36.52(," W£LL #0. /I /AT: 70 °/~,' 08 968" Lo,vG. 148 ° 34'37. 239" WEt L NO. 12 Z,z~-. 70° lb' /0. IZS" LON'O. /48' 34' 37. 957" WELL IVO. 13 LAT 70 ° lb' I1. Z]9" Lo~/6 148 ° 34' 38 699" WELL NO 14 LAT. 70 °/6' /2 434" zo,,/6. 148 ° 34' 39. 412" ZONE 4- 5 948 887. 99 676 22 9 · 68 949 005 23 ¢,76 2o2 03 Y 5 949 lzz 19 'X 6 76 174 oo 949 23B 97 676 14 6 44 Y 5 949 355, 70 X 676 118. 57 Y' 5 949 47Z 56 x 676 o9/ 08 y 5' 949 589 16 x 676 063 4-9 705 67 &T& 035 949 822 8Z 676 007 25 Y 5 949 939 . 3/ X 675 979 . 55 Y 5 950 055 . 8o X 675 95Z . 33 9fro 172 87 675- 924- 93 950 289 . 52 675 896 7/ 5" 950 40& 37 67:5 8.69 48 SURVEY DATE : JANUARY 5, 1978 ARCONo. AFE HVL No. ATLANTIC RICHFIELD CO. AS - DUI LT DRILL SITE No.7 WELLS .' I THRU 14 LOCATED IN PROTRACTED SECTION 33,TIIN , RI4 E,U.M. PREPARED BY HEWlTT V. LOUNSBURY I~ ASSOC. 723W. 6TH. AVE., ANCHORAGE, ALASKA DATE JAN 6, 1978 SCALE I''= 300' CHKD. BY G.D. TUI.~A I, QKL.~HOM~A TOVI~P PLAT Scale: Z inek--T mile Printed. in' U.S.A. TOWNS:HI P RANGE COUNTY STATE REMARKS: COMPANY CHECK LIST t-OR ~{E~ ~'~TJ, PEP~ITS C~npan.y Yes No 1. Is the pe~t fee attached ..................... ~, 2. Is well ~,,o be located in a defied ~1 .............. ~ ~ 3 Is a register~ s~ey plat attach~ ~Z~J e . . · . e . · e · · · . · · · · · · ~, I~ ~ll ~ ,~-~at~d p~o~ di~o~ ~ p~op~y line ......... 5. Is well ], x?ated proper distance from. other wells .......... 6. Is sufficient undedicated acreage available in this pool ...... ~/~ 7. Is well to be deviated ........ ."~ ~ 8. Is operator the only affected party ................ 9. Can permit be approved before ten-day wait ............. / O. Does operator have a bond in force ................. 1. Is a conservation order needed ................... 2. Is a¢%ninistrative approval needed ................. h I rem Approve Date -(1) Fee (~,~.~2~.. /-Z..¢ 7~' (2) Loc. (Z"~-- / (3) At, min. X' .3. Is conductor string provided .................... ,4. Is enough cement used to circulate on conductor and surface .... .5. Will cemen'h tie in surface and intermediate or production strings .6. Wi].l ce~: '- cover all known productive horizons .......... .7. Will sur~i :;e casing protect fresh water zones ........... .8. !.'qill all ~sing give adequate safety in collapse, tension & burst .9. Does BOPE have sufficient pressure rating - Test to ~O psig . ~ -(5) BOPE -(6) Plan Approval Recommended: Geo!egy: EngJmeering: ~/'-/~ JAL ,, . LCS ..'~: BE~^[ _ ~qqA ' RAD Revised 4/14/78 -~ , ,c C('r~panv CIRgCK LIST kIDR I@]q WE.I.~, N.,JRMII~ ~es ~o -- 1. Is the ~t ~e attached ..................... well to ~ l~at~ in a def~ ~1 2 Is 3. Is a register~ s~rey plat attach~ .... _ 4. Is well located pr~r dist~ fr~ Dro~y l~e ..... , . . · . ~75. Is well loCat~ pro~r dist~ce from. other wells 6. Is sufficient ~d~icat~ acreage avail~le in ~is 7. Is well to be deviat~ .... · ................... 8. Is o~rator ~e on17 affected ~rty ...... . · .. .... ~ . · · 9. C~ ~r~t ~ approved ~fore ten-day x,~it _ ~es o~rator have a ~nd in force .......... !0. ~:~i]. Is a .conse~ation order n~ded .~ .................. _ 12. Is a~inis~-ative approval n~d~ ................. ~ ~ - ........ 1.3. is conductor strin~ provided .................... ~.Wil! cement tie in surface, and intermediate or prOduction strings, . ~ ........................ Will c~n~nt cover all known productive horizons .......... ... _~_ ......................................... !~":17'. Will surface casing protect fresh water zones ........... ~ ..... 18. Will ali. casing give adequate safety in collapse, tension & burst . ..~ ~>'~ 19 Does BOPE have sufficient pressure ra~ing - Test to ~o o o psig . . 20. Has DMF/~ approved Pl~ of Operation ................ i,~dditional Requirements: Lease & Well No. /_~~, 1%em Approve Da -(]) Fee {'3) Admin. ~/,,.~Z. / Revised Well Histo.ry File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information-of this nature is accumulated at the end of the file under APPENDIX~ .. No Special'effort has been made to chronologically organize this category of information. Company Well LIBRARY TAPE CURVE SPECIFICATIONS FILE 1 Arco Oil & Gas ~ DS 7-12 Field Prudhoe Bay County~Stato North Slope, Alaska Date 2-15--81 Curve Name (Abbreviated) St;-~!d. ard Cu.*ye Name Logs Used MON1 Monitor Pass 1 DDNLL MON2 Monitor Pass 2 DDNLL ~40N3 Monitor Pass 3 MeN4 Monitor Pass 4 MeNS Monitor Pass 5 GR1 Gamma Ray Pass 1 GR2 GR3 GR4 GR5 G~amma R__~ P a__s_s__2 Gamma Ray Pass 3 Gamma Ra~ Pass 4 Gamma Ra~ Pass 5 DDNLL Scale 0-120 0-120 0-1.20 DDNLL 0 - 120 DDNLL 0 - .1. 2 0 DDNLL 0--1 O0 ........ t.P 0_: Z 0 ~ 0-_100 I1~ ............... 1 D 0_ _-__?.-._ P_0~ 0-100 DDNLL ~100-200 0-100 · J-)D~I.,J.,_ ............................. .1.0.0:_.?. 0.0_ 0-1_00 DRTLL DATA ARC6) OILI AND .qTTE 7-12,PRUF)HOE E~ERY 1 S A~:PLES ~042~.00 lI.G2 12.65 10420,50 lP.OG 11.91 10421.00 1~.21 12.21 10421.50 i2.06 12.06 10422.00 12,06 ii.%? ~0~2~.50 11,91 12.35 i042~.00 1B,09 12.35 1 042~.50 1~,35 I2.21 ._ ~0~2~.00 11,91 I2.79 ~042~.50 11,91 12.50 o_ ~0425.00 1~.35 12.35 ~042S.50 11.91 12.50 ~042A,00 1~,21 12.0~ 1042~,50 1~,21 11.~ ~0427,00 12,79 11.1~ ~0427,50 11,~2 ¥042~.00 12,50 11.~2 ~0~2~.50 13,09 11.9'1 ~042q,00 13,38 '~0~0.00 11,91 11.~2 10430,50 11,47 11.~7 ~0~]1,00 11,1~ 11.03 1043~.50 1~.7~ li.7~ ~043~.00 11.91 11.7~ 10~33.00 12,06 12.35 10~33.50 12.65 I1.gI ~043~.00 11,76 11.91 ~0~3~.50 11.91 12.65 1043~.00 11,91 11.91 10435.50 12.50 12.21 ¥04~.00 11.76 12.0A ~04~.50 12.06 11.47 ._ 10437.00 11.~7 12.35 ._ ~0437.50 11.9I 12.35 ¥043A.00 12.35 12.21 ~043A.s0 11.7~ ~043~.00 11.7~ 12.s0 1043~.50 11.18 12.35 10440.00 11.32 12.50 ~044~,50 12.21 12.0~ 10~41.00 11.18 ~04~1.50 12.21 11.18 .. 104~,00 11,91 12.35 10~4~.50 11.7~ 11.~ ~0~45.00 1~,21 11.91 ~44~.50 i1.76 I2.79 ~~.00 11.91 1~.21 -~ ~44~.50 17.21 11.~2 10~45.00 i2.21 11.~7 SAR BAY.N.SL:DmE.ALASKA. ~nN3 MO~ MON5 .~21_ GR2' GR3. GR:~ SR5 ' ~73 41 95~ ~6' 2~ 4~ 02 i3 24. 1~.0~ 1~.5~ ~'S.~S 35. ', . . . 12~79 1'2,50 13.97 37'.~ 36.83 42.9~: ~8~17'' 40.98 12~35 12.G.5 13.97 3~.~ 3~.88 41.957 ~6.59 43;05: 12.35 12.94 1~.~1 3~.02 35.49 44.39~ ~0.73 ~3.90 1.2.79 12.79 1~-.~1 31.71 39.27 40.1~ ~3.~1 ~5.12.' . - 12.7'9 12.79 13.38 32.32 59.27 38.78 ~.~.88 ~2.68 12'79. 12.79 13. 38 3~'.3~ 38.78 ~0".~9~ ~.22 ~3.0~ 12.94 12.79 13.35 32,66 36.71 39,63 39,76 42.~4 13.09 12.65 13.53 34.27 34.15 34.76 35~90 4.0.37' 13~2~ 1~.79 13.82 34.15 32.56 35'00 43.66 45.24 13.24 12.94 13.24 31.71 31.59 37.32 48°29 · 12.65 13.97 13.2~' 3.1.83 32.93 40.4'9': ~'4.88 4:3.05 11.76 13.09 13.82 33~90 38.05 ~0.00 44.27' 43,05 12~21 1~.06 13.~8 33.~1 35.85 41.~ ~.39 ~.63 12~21 1~.9~ 13,53 34.76 34.88 42-20 ~5.12 4~.15 13109 1~.G5 13.82 3~.49 35.85 38.54~ ~6.95 45.98 13~09 12,65 13 97 39 51 33 29 37,20 50.98 ~'05' 13~09 12.79 13:.97 38,~.! 36.22 38,29~ 50°49' 1.2.94 1~.65 13.09 38.29 37'80 41~957 51.83 45.61' 12~9~ 13.09 13.09 39.51 ~1.3~ 41.4~ ~6,59 46.83 12.35 12.35 14.26 4.1.10 43.54 4~.63 ~6.46 46.95 1.2.79 12.06 13,53 38.54 42.93 45~.2~ 46.22 ~6..59 13~53 12:.50 13.53' 37.80 4~.02 43,66, ~8.17 48.17 12:~50 12.65 13.82 3~'.17 38.5~ 43,29 ~6,59 47,95 12~65 11 91 13.09 38.6.6 38.05 42.32:" ~'9'.65 50.73 f .. 13r24 I ~.65 13.~8 3~.7R. 38.29 41.83 48.54: 46.~6 13.09 12.50 13.38 39.51 38.78 42,32 ~0o12 46.59 15~09 11.18 13.82 #~.93 38.41 ~0.00 ~1.22 12~65 11.9! 1~.12 37.56 ~0.12 41.34 42.56 43;17 13~24 12.35 13.82 36.46 35.73 41.95 43.90 42.20 12':~79 13.09 13.82 36.95 36.83 42.93 ~5.37' 12.35 13.09 13'.97' 36.95 34.88 41,95! ~1.95 4'7.8:0 12~79 13.09 13.09 37~93 39.27 ~0;12 41.10 42.G8 . . 12.79 12,~5 13,38 35.~9 $9.27 38,7B ~2.68 42,6'8 12.7'9 13.24 13.09 3~.10 38.78 ~0,~9' ~'1,95~; ~0.9'8 12i9~ 1~.35 13-.~# 3~.56 36.71 39.63' 38.54 13~0~ ~.35 l~.~ 3~?~ 3~'.15 ~.7~. 37.93 13.24 12.35 13.82 ~9.7& 32.56 35.00 39,39 36.22 13,24 12.35 13.38 30.37 31.59 37.32: 38.66 39.39 13209 1~.24 13.82 35,~9 32.93 42,93 ~0,61 38,66 13282 12.79 13.97 ~0.00 34.76 41.59 ~1.83 13.38 13.82 14.71 ~0.1~ 36.71 ~4.27 ~0.24 45.12 13'.09 1~.79 1~,26 39,39 ~8.17 43.5~ ~1,34 12.50 13,38 1~.38 B7,20 ~0.73 ~7,20 39,63 46,59 13.09 13.09 13.82 $8.~ .0.12 40.12 .2.93 13L53 ~.~3 13.~8 ~0.7~ ~1.59 42.9~ ~2.~8 13;38 1.4.26 14.71 41.83 41.10 ~1.59 40.37 41.59 13.o9 13.24 14.~i 41.10 35.~7 43.90 43.~ ~1.~3 445 44~ 4.47 450 , 451 ,. 455 456 457 460 460 ~.61 461 . . 46~ 469 463 464 46~ 466 46r., -- 467 46~a 46R °50 ,00 ..50 ,00 ,50 ,00 ,50 ,00 ..50 ,00 ,50 o00 ,50 o00 ,50 o00 .50 ,00 ,50 ,00 .50 .00 ,50 , O0 .50 o00 ,50 ,00 ,50 .00 °50 ,00 .50 .00 .50 .00 '50 ,00 ,50 .00 ,50 ,00 .50 ,00 .50 .00 ,50 .00 .50 ,00 .50 Mob1 12.65 12.~5 12.06 12.35 1~.79 · . 11.32 1~.35 le.65 11 1!.91 11.91 1~.21 11.47 11.76 11.91 11.03 11.18 11.91 12,50 1~.06 12.21 12.35 13.09 13.09 12.65 12.&5 12.65 1~.21 l~.O& 12.35 12.06 12.50 11.47 1~.91 11.47 ... 11.91 12.06 12.06 · 11.76 11.91 11.47 11.18 11.91 11.91 11.03 11.76 11.7~ 12.21 12.35 11.91 11.9~ 12.65: 11.91 12~21 · . 12'O&, :.. 12,35 , 12, ,21 12.7'9 12,50 12,35 12"0~ 12.21 12.0& I~.65 12:'06 12'50 · , 11.7~ 11.62 11.7~ 12,06 .. 12,79 13'09 12','79 11.62 11.91 l~.O& 1.1.7~ l~.O& 11.62 13.38 1~.35 11~7~ ll..1R 12.06 11.6~ II.IR ll.?G 11.18 12.0G I~.OG 11.6~ .13 53 13;2~ 13.2~ 12.21 1~.79 12 3s 13~3R 13.24 12,50 12~35 12.65 13:. 38 11.91 12 5o 12.50 12.79 12.35 18.35 13'.09 13.09 13.53 13~ 38 . 13.82 1~.50 · 12.94 13.09 13.97 13.24 13.53 · 12.79 : 12.79 12~21 13.'.3~ 13'09 . 15.09 15.38 ~ . # 18.35 , 1~.21 1.~..65 13.09 12.50 12.79 13.35 1~.79 13.53 13.24 1_3'.53 1~.65 12.79 1~.50 13.09 13.24 12.79 12.79 1~.79 12.65 1.~.6.5 12.50 13.09 12.94 13.53 13.53 13.53 13.2~ 12.06 12.65 13.09 12.06 1~.79 1~.35 1~.65 12.79 13.09 13.2~ ~3.53 12.50 ~9.50 11.76 12.21 13.3~ 12.94 13.24 ~.$8 13.09 14.26 13.53 13.38 13.38 13.97 14.56 14.26 14.12 14.71 13.68 14.26 14.41 14.12 1~.71 13,38 13,97 14.56 14.12 14.41 13.53 13.38 13.82 14.26 13.24 13.53 14.41 14.56 14.26 13.g7 14.~G 13.82 13.82 13.53 13.97 14.41 13.53 13.97 14.56 13.53 13.09 13.53 14.12 13.97 13.53 13.53 14.26 13.97 13.&8 4.1 38.41 38.05 36,83 36.22 38~17 37.68 %1.34 %.5'12 60.37 71.83 84.63 100.24 125~49 153;7'8 195~73 150,98 5'5.85 .%4.63 40.85 38.~9 52.07 56,10 56.34 49.51 37.07 34.7~ 33.7'8 28.29 30.49 28.29 31.95 31.71 31.71 3~.32 29.51 27,80 27.80 27.32 29.02 GR2 35.61 34.5! 34.76 55.98 37.8.0 39.63 ~0.85 38.17 40.00 ~0.37 ~3.78 ~3.78 51.10 57.80 60.85 76.46 89.27 116.10 136.95 156.95 188.66 193.29 155.85 120.73" 82.20 66.22 56.95 49.51 49.15 49,27 50.85 5~.39 55.00 55.24 42.44 ~3-. 17 31.83 32.93 31.10 28.66 ~9.27 31.95 33.17 33.54 32.93 29.63 26.83 29.39 30.98 30.37 30.37 GR3 43.29 43,29 44.15 43.90 46.~6 46.3~ 43.6& 45,00 44.63- 49°39 53.65~ 60.85~ 68.05! 76.95 98.29~ 123.66~ 149.15~ 191.71 185.85~ 157480~ 1~5.127 66.83: 56.95 46.83 44.15 ~7.20 53.1T 64.15~ 62.80 60.61 51,95' 41,95' 41.7t 42.20 ~1.3~ 41.71 40.73 40.12: 3#~15 35.98 31.71 32.52 33.5~: 34.39' 36.71' 45.12 ~3.29 42.32 ~.27 ~3.66 45.61 46-22 48.05 5#.51. 60.85 6B.17 75.2~ 89.76 107.~ 127'93 153.66 179.76 191.95 188'.66 167'.20 133.66 100.61 66.10 58.29 52.07 45.24: 4~.8B 51.46 57'.~4 64.15 6R.93 56.71 45.98 43.17 36.83 37.32 36..71 34.51 36.22 37'.93 37.80 37.93 36.46 38.90 38.17 37.68 36.59 37.20 43.05 44.63 ~3.~9 47.80 49.63 45'98 49.51 .45.61 4-~. 68 46.2'2 50.2~ 57', 5'6 61..1.0 68.78 96.83 122.68 1~6.22 187. ~'0 217.20 215.00 174.63 133.78 98.90 79.39 ~9.51 55.3T 50.98 ~5.~9 50.~5 55. St 63.78 62.07 55.12 ~3.17 ~3.29 ~.90 39.51 38.90 ~0.~1 ~0.75 ~2.20 ~O.T3 ~8.29 ~8.05 ~7.5~ 3~.95 3~.10 {o4711.oo . I 0471.50 .. '] 04.73.00 :(o4.7 ,5o J 0~7~. 50 j OgT~.O0 _.. j 0~75.50 J 0~7~. O0 j o~7~. 50 ,. j 0~77. O0 ~ 0977.50 j 0~7~. O0 j Og7~. 50 ~ 0979,00 J 0~80. O0 J 0~80.50 ~ 0B81. O0 J 0~89. O0 ~ 0~89,50 ~ O~B~. 50 ~ 0~85.00 I O~BA.O0 ~ O~BR. 50 1 0~87.00 ~ 0~87.50 ~ 0~8~.00 ~ 0~8~. O0 ~ 0~8~.50 ~ 0~90. O0 ~ 0~90.50 ... ~ 0~91. O0 ,.. 1 0~9~.00 ~ 049~. 50 ~ 0~9~.00 -. ~ 0~9~. 50 .., I o~9~.00 ~ 0~9~.00 ~ o~9~.50 ~ O~gA.O0 MON! 12.79 12.35 ., 12.65 11.91 11.91 1~.21 1 .o6 11.76: 12.35 12.79 12,35 12.79 12.35 12.35 11.62 12,21 12.21 12.06 12.06 11.91 ll.7& 12.21' 11.76 12.50 11.91 11.91 11.%7 ,, 12.21 1~.35 11.18 11.91 11.62 11.91 11'.47 10.44 9.85 10.~4 1~.15 10.15 10.7~ 11.18 ll.lB ll.7& 11.76 12.35 1~.06 1~.21 1~.65 11.47 3.2.35: 13.09: 12.35 12.06 12.35 12-79 - 13.09 12.21 11.91 . 11.3~ !~'0~ 12.35 12.06~ 12.50 12.5o 12.50 11.47 1~.35 1.1.7~ 12.'06 11.32': 12.o6 1~.35 12.35 12'.35' 11.91 12.0g 12.35 12.79 12.50 12.21 12.21 12.21 12.65 13.09 12.50 12.06 12.06 ll.g2 1 '5o 12.50 13ko9 13~.53' 1R~79 1R.79 1.2 65 11.62 . 12.50 ~2.79 12.21 !2.79 12~. 50 - 1~.09 13.09 , 13,38 12.65~ 12,5o 1R'79 1.2.35 11,91 11.91 11.91 1~.35 · 1.1,91 12 o6 12~21 ~ · 12.21 ,,. 11.91 121.21 12.21 12.06 11.18 12~21 13.09 · 12.9~ ? 11.91 12.35 13.38 1.3.09 12.65 1.2.50 12.94 12.94 12.50 12.94 12.79 12.94 1.2.35 12.79 12.~5 12.79 12.79 . !2.50 ~.79 1~.21 1,~.65 13.o9 13-2 ~3.68 · 12.55 1~.9~ 12.79 12.§0 12.35 , 11.76 11'03 .. 1!'7~ 12.35 12.79 12.35 12.06 11.91 13.09 12.94 12.21 12.35 12.35 12.50 12.21 12.79 MON5 12.79 14.41 13.97 13.24; 13.82 1,~.12 14.26 12.79 12.79 12'.35 1~.97 14.26 13.97 13.24 14.71 13-~?' 1~.97 13'o9 I2.79 13.24 .... 1~'09 13.24 12.?~ 12.s0 15.~2 · . 12.65 13.09 12.65 12.50 13.24 13.0~ 13.09 15.5~' 12.94 13.~8 . 28.0~ 29,39 27'.07 2s, l 2?.07 ~1.~2 35' 24 $5.?4 30.73 33,29 ~.5~ 3~.90 35? 73 ~.00 3~,7! ~o07' ~'0o61 ~8.. 05 . , 51 59 50.98 53.~1 5~.5~ · 57.07 52.68 53'29 50,85 , 58,05 59,27 · 5~.39 53,54 6R2'. 30.2~, 31.59 29.02 25.24 25.24 26.10' 29.27' 26-59 29.76 3O.98 27,80 29.02: 29.88 29.~8 32.07 35.12: 36.8 37.56 ~7.07 37.80 37,07 36.59 32.93 35,85 ~7,20 40.55: 45.61 49,15 46,22. 48.54 54,27' 55,98 56,71 54.02 55,2~' 51,10 54.76 57.93 60.49 57.~S 55.73 58.29 GR3: 39;27~ 38,05~ 35,73: ~.0,2~.~ 38,78. 3~.5~ 37'.20.~ 35.61~ ~0.00 ~0.61 43.0'5 39.51 '43.66i ~2'56~ 39'51; ~1.95 43,78~ ~7'80 50.85~ 50,85~ 53-29? 5~..02 56.83 56.46 54.51 59~39' 58.5~. 55.49 55.98: 57.3~ 60.85' 59.65' 59.27 36-71; 35.~9~ 35-24~ 34,.39 31-59~ 32.201 35',61? 37.68: 39'39' 38-17 38.66~ 45'12: 51.22~ 50.73' §5,49' 53.29': 53, 05~ 55.12 55.00 58.41 57.80 61.10 60.85 57;93 56.22 56.83 59.88 621.80 60.61 61.71 66,59 38.90 38' 05: 38' 37' 40' 37, 37'. 56 3 9. 613 46~. 22; ~3.05: ~ . 59 39.27' 39:, 1 22 ~3:' 05 ~' 93. 39' Z5 37.4 39:' 50.12: 5~:. 29 5~.15 57, 32 57, 5~.10 57.68 5~. 15 55.5~ ~0.24 $2.07 55.73 5~.15 s0997.00 10~97,50 mO~9~.O0 ~049q,00 ~'osoO.oo 10501,50 1050~.00 ~050).00 1050~.00 ; oson. ~o ~OBOA.O0 mO§O?.~O ~'0509.00 ~050~,50 IOBiO,O0 1 0511.00 ~0~1~.~0 ~0§1~.00 10513.50 ._ ~0518.00 ~0§17.00 m0517,50 10518.00 .- ~ON1 1~.50 11,47 11,76 11.62 11,62 1~0~ 11,62 11.91 11,18 11.18 11.62 12'21 1~.65 1~.50 1~.06 11.91 1~.35 1~.65 . . 11.76 12.21 11.91 15.09 1~.65 12.21 11.91 15.09 1~21 1~.06 12.06 · 12.0G 1~.21 12.55 12,2! 1~.35 12.35 1~.79 1~.79 1~,65 1~.35 12.65 11.18 11.91 12.35 12'35 12.06 12.21 11.1~ 12'50' 12.35' 12.06, 11·.6~·· 11.18 . ., 10.8~ !1.~7' 11.6~' . 12'.35~ 11.18~ · 11.~7~ 11.91' 11.62 !1~47 11.7~. 11.9! 11,62 12.06 11.1~ 11.32 11.91 12'.0~ 12.79 11.91 12.35 11,91 11.91 11.91 11.91 12.~5 12~' 21 .. 12 :, 0 G 12'. 2:1 12.79 1~. 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ALASXA, INC. D. S. 7-12 Field PRUDHOE BAY County, State N. SLOPE, ALASKA Date 1-1t-81 Curve Name (Abbrev.) Standard Curve Name Logs Used Scale GR4 GAMMA RAY PASS 4 DDNLL 0-100 , 100-200 MON4 MONITOR PASS 4 " 0-120 N. L4 SIGMa..PA~.S 4 " 60-0 014 ....... GATE ONE .P..A~.,S., 4 0-75 G24 GATE TWO PASS 4'" " 0-12.5 RAT4 RATIO P, ASS 4 ..... " _, 1 1-1 GR5 G.~ti .,R~,¥ PASS 5 ,,, " 0-100 , 100-200 MON5 MONITOR PASS 5 " 0-120 NL5 SIGM~ PASS 5 " 60-0 Gl5 GATE ONE PASS 5 " 0-75 G25 GATE TWO PASS 5 " 0-12.5 RAT5 RATIO PASS 5 " 11-1 NLL AVERAGE sIGMA " 60-0 DI FL r ARCO ALASKA INC. D,S. 7-12 PAGE DE?TH glGHA $IGHA $1GHA SIGHA S[.~A SIGHA SIGHA SIGMA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG, HIGH LOV HI-LO DIFF. 184'28. 21.67 21.~9 21.93 18421. 28.58 22.39 22.96 18422. 21.38 23,84 22.48 19423. 21.75 23.11 22.85 18424. 21.85 21.24 24.~6 18425. 19.51 21.68 22.82 18426, 18.24 28.24 22.93 18427, 23.51 21.46 21.35 I~428, 23,15 2'3,87 22,~8 18429, 23,7~ 23,91 21,13 18438, 22,93 23,51 22,19 18431, 22,63 22,93 22~63 18432, Z1,31 23,73 22,74 18433, 21,42 Z1,46 22,74 18434, 21,57 2~,69 21,75 18435, 21,75 22,19 21,27 18436, 23,22 22,34 22,96 19437, 24,58 23,48 22,45 18438, 24,58 21,49 23,48 18439. 21.6~ 21.13 24.14 1844ff, 21.28 21,82 21.31 18441. 23.55 21.98 22.85 1~442, 21,42 22,19 22,41 19443. 23,88 21,93 11.82 18444, 22,67 21,82 21.38 18445, 23,87 19.95 21.16 1~446. 22.3~ 22,1.2 28.98 18447. 22.23 22.15 21.28 18448, 28,69 28,17 21,46 18449. 22.19 19.66 22.82 18458. 21.64 19.99 21,93 18451, 22,84 2~,98 21,13 18452, 24,8~ 23,11 22,15 18453, 26,74 22,85 23,84 18454. 24,58 25,83 25,94 18455. 25.64 27.33 25.61 18456. 25.13 25.17 24.17 18457. 21,82 21,49 22.26 18458. 17,97 19.25 19.55 18459. 18.34 18.89 18.85 1846g. 17.97 19.99 19.81 19461. 21.82 2~.28 2~.47 1~462. 28.69 2~.58 Z1.31 18463. 21.85 19.66 12.89 18464. 28,35 19.51 22,41 IB465. 28.65 28.54 21.82 18466. 28.72 2~.58 22.56 18467. 19.18 21.64 22.52 18468. 19.18 2~.83 28.58 18469. 19.29 19.8~ 21.24 23,]2 19.99 21,67 23,92 19 99 3,93 2,35 23,78 19.77 21,77 13,78 19,77 3,93 2.8~ 21,68 19.95 Z1,68 13,84 19,95 3,~8 1,73 21.82 28,91 22.81 23.11 2~.91 2.28 1.18 22,71 21.57 21,88 24,~6 21.24 3,82 2,18 21,98 18.94 21,42 12,82 19,51 3,38 1.91 28,76 28,87 28,76 12,93 28,24 2,68 2,17 28,58 21.68 21,51 23,51 2~,58 2,94 2,88 21,~5 22.45 22,45 23,15 21,85 2,89 1,48 22,~4 2~,98 22,52 13,92 21,13 2,79 1,48 23,15 22.52 22,85 13,51 22,19 1,32 g,66 23,73 22,41 22,78 23,73 22,41 1,32 8,95 23,37 23.33 13,85 '13,73 21,31 2,41 1,74 23,~7 21.82 22,18 13,87 21,42 1,65 8,97 22,74 22.37 21,75 22,74 28,69 2,86 1.~6 23,4~ 23.55 22,41 23,55 21,27 2,28 1,14 21,79 23.77 22,78 23,77 21,79 1,98 8.99 23.59 21.32 23.16 24.58 21.82 2.68 1.34 23,15 22.93 23,15 24.58 21,49 3.81 1,65 21,82 21,~9 21,68 24,14 21,89 3,85 2.53 22,63 21,53 21,36 ZZ,63 Zl,12 1,62 1,27 22.15 22.45 22.58 13.55 21.98 1.65 1.85 22.34 23.33 22.34 23.33 21.42 1.91 g.99 23,87 22.45 22,45 13,87 21.82 1.25 8,62 22,37 22.37 22,18 22,67 21,38 1.29 ~,72 22,48 22.37 21,82 23,~7 19,95 3,12 .1,87 21,23 21.79 22,81 12,38 2~,98 1,32 1,83 21.46 21.82 21.81 22.23 21.28 1.83 8.61 21,64 29.47 2~,91 21,64 28.17 1,47 8,73 21,19 21.46 21,82 22,82 19,66 3,16 2.17 22,84 22.41 21,84 22,41 19.99 2,42 1,85 21,23 21.49 21,59 12,23 28,98 1,25 8.64 2Z,gl 23.59 13,11 24,8~ 22.81 2,79 1,69 25,98 24.72 24,8~ 26,74 12,85 3,89 1,95 27,96 28.93 26.38 28,83 24,58 3,45 1~73 25,79 27.44 26,49 27,44 25.61 1.84 8,95 25,17 23.84 24,67 25.17 23,84 1.31 8.83 21,28 2~.39 ZI,49 22,26 29,39 1,87 1,18 18.78 28.24 19.16 28.24 17.97 2.28 1.19 18.74 18.92 18.81 18.92 18.34 8.59 8.48 19.99 28.13 19.98 2~.13 17.97 2.17 1.93 28.39 21.~9 28.39 21.89 28.82 1.86 8.78 2~.47 29.32 28.58 21.31 28.32 8.99 8.73 22.38 29.39 21.27 22.89 19.66 3.23 1.62 22.96 29.10 21.24 22.96 19.51 3.45 1.73 28.28 29.65 28.65 21.82 2~.28 8.73 8.37 28.28 21.60 21.89 22.56 28.28 2.28 1.47 22.37 20.65 21.51 22.52 19.18 3.34 2.33 28.28 21.35 28.56 21.35 19.18 2.17 1.38 28,39 2~.32 28,26 21,24 19,29 1,95 8.97 ARCO ALASKA INC, D.S. 7-12 PAGE 2 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS I PASS Z PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 18479. 19.11 19.62 21.49 22.71 2~.39 21.56 22.71 19.11 3.6~ 2.15 1~471. 21.28 28.24 22.52 21.46 21.~9 21,27 22.52 2~.24 2.28 1.25 I9472. 28,58 28.28 23.62 22.18 2~.35 21.22 23.62 28.28 3.34 2.41 18473. 21.57 28.58 21.13 22.63 21.16 21.35 22.63 28,58 2,86 1.29 19474, 21.31 21.94 21.64 22.12 28.28 21.29 22.12 28.28 1.84 1.81 1~475. 21.86 22.37 22.12 21.86 21.68 21,99 22.37 21.68 8.78 ~.39 18476. 22.93 21.38 23.84 22.93 21.86 22.39 23.84 21.38 1.65 1.~1 18477. 22.71 2~.69 22.78 24.47 22.59 22.69 24.47 28.69 3.78 2,~ 18478. 22.71 19.99 22,63 23.22 23.62 22.71 23.62 19.99 3.64 2.72 19479. ZI.B9 22.85 24,91 23.18 24.21 23.18 24.91 21.89 3.82 2.99 19489. 2~.94 24,43 23.8~ 25.53 23.59 23.59 25.53 29.94 4.59 2.64 19481. 22.71 23.29 22.56 26.16 23.73 23.29 26.16 22.56 3.68 2.86 19482. 24..51 24.87 23.55 24.58 24.14 24.32 24.87 23.55 1.32 8.77 19483. 2~.16 23,44 22.81 22,85 23.84 22.52 23.44 21.16 2.28 1.36 18484. 2~.69 21.93 21.68 22.82 22.89' 21.93 22.89 28.69 2.29 1.25 18485. 22.82 24.86 24.83 23.33 24.59 23.92 24.83 22.82 2.~2 1.18 1~486. 25.17 27,18 26,34 24,36 26.88 25.77 27,18 24.36 2.83 1.41 18487. 25.24 27.55 26.78 26.41 27,29 26.78 27.55 25,24 2.31 1.54 18488. 26.56 28.51 27.88 26.19 28.84 27.53 28.84 26.19 2.64 1.34 19489. 38.27 27.81 28.98 27.29 28.58 28.58 3~.27 27.29 2.97 1.69 18499. 38.89 26.67 3~.38 29.82 31.22 29.96 31.22 26.67 4.55 3.29 18491. 29.83 29.28 29.28 27.59 29.28 29.28 29.83 27,59 2.24 1.62 18492. 27.63 29.68 29.86 26.78 26.45 27.92 29.68 26,45 3.23 1.76 18493. 26.16 27.88 29.17 29.94 28.32 28.32 29.94 26.16 3.78 2.17 18494. 25.68 27.48 27.74 31,85 27.52 27.61 3B.95 25.68 4.37 2.44 18495. 27.87 28,25 27.33 31.52 24.32 27.66 31.52 24.32 7.28 3.86 18496. 26.49 27.41 28,62 27.96'24.83 27.22 28.62 24.83 3.78 2.39 I~497. 27.81 26.45 29,72 25.57 27.81 27.64 29.72 25.57 4.15 2.~7 18498. 27.41 25.39 29.39 28.32 26.45 27.39 29,39 25.39 4.88 2.~8 18499. 27.96 25.57 27.63 27.88 26.3~ 26,96 27.96 25.57 2.39 1.48 18588, 28.51 24.98 26.t6 25.39 24.65 25.57 28.51 24.65 3.86 2.94 18581. 26.82 27.88 25.28 22.74 26.~1 26.81 27.~8 22.74 4.26 3.27 18582. 26.85 27.48 25,57 23.51 27.26 26.41 27,48 23.51 3.97 2.98 18503, 24.43 27.74 25.79 26.88 24.36 25.79 27.74 24.36 3.38 1,95 19584. 25.94 24.88 26.16 24.94 26.74 25,77 26.74 24.88 1.95 ~.97 18585. -28,62 23.92 26.85 28.62 3~.81 27.74 38.81 23.92 6.18 3.82 IO596. 38.64 27.85 29.83 27.26 28.~7 28.84 3~.64 27.26 3.38 1.88 18587. 28.18 29.83 29.86 29,17 29.~9 29.89 29.83 28,18 1.65 8.92 19588. 38.67 28,88 27.44 29.79 3~.27 29.53 38.67 27.44 3.23 2.89 18509. 38.53 28.62 31.88 29.68 29.98 29.98 31.88 28.62 2.46 1.36 1951~. 31.11 31.8~ 32.55 28.36 39.29 38.65 32.55 28.36 4.19 2.29 10511. 38.86 31.85 3~.34 27.96 29.~2 29.94 31.85 27.96 3.89 1.98 18512. 38.95 38.89 31.63 31.59 32.11 31.26 32.11 38.85 2.06 .1.21 19513. 29.46 38,27 32.62 38.34 32.25 31.84 32.62 29,46 3.16 1.58 16514. 38.27 31.48 29.98 31.89 31.92 38.95 31.92 29.98 1.95 8.97 18515. 31.44 38.27 31.26 28.83 28.32 29.79 31.44 28.83 3.41 1.76 18516. 38.89 31.77 38.89 31.48 31.55 31.22 31.77 3~.~9 1.69 1.14 18517. 38.38 32.29 31.66 38.38 32~33 31.35 32.33 3~.38 1.95 8.97 18518. 28.95 31.92 29.98 38.71 29.72 38.21 31.92 28.95 2.97 1.71 18519. 28.91 32.11 38.12 29.53 29.24 29.68 32.11 28.91 3.19 2.42 ALASKA INC. 7-12 PAGE 3 :PTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. 'T. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. i20, 28,58 31.15 38.tZ 28.48 39.34 29.77 31.15 28.48 2,75 1.38 ,21. 29.20 30.81 28.98 29.13 27.96 29.89 38.81 27,96 2.86 1.14 ,22, 27,44 27,37 29,39 '38.89 29.31 28,73 38,89 27,37 2,72 1,36 i23, 28,91 25.35 28.21 28,61 28.54 28.41 18o91. 25,35 3,56 3,87 ,24, 27.18 27,15 25.98 27,11 29.61 27,15 29,61 25,98 3.71 2,46 25, 25,75 26.23 27.96 27,~4 27.8~ 26,85 27.96 15,75 2,28 1.18 16, 23,81 .24,88 26.93 25.53 27.80 25,53 17,88. 23.81 3,19 1.73 17, 24,47 25,57 26.85 25,57 25.61 25,59 16,85 24,47 2,39 1,27 18, 25,72 25,89 17.88 25,39 26.51 25,95 27,88 15,89 2,79 1,93 29, 27,44 24.76 27.74 28,87 26.85 27.29 18,~7 24,76 3,38 2,53 38. 28,21 28.48 25.83 27.48 24.94 27,82 28,48 24,94 3,45 2,87 31, 25,75 28.29 27.18 25,98 24.58 26,48 28,29 24,58 3,78 1,89 32, 23,48 25.75 24,71 25,89 24,65 24,72 25,75 23,48 2,28 1,25 33, 23,18 11.86 22.93 24,36 22,96 23,85 14,36 21,86 2,58 1,38 34. 22,88 22,85 22,89 23,88 21.71 22,88 13,88 21,71 2,17 1.88 35, 22,23 22,23 22.45 23,84 22.19 22.34 23,84 12,19 1,65 1.51 36, 22,84 22.34 21,t3 21,64 22.45 21,99 21,45 21,13 1.32 8,86 37, 21,57 22.93 21,27 21,75 22.56 12.86 22,93 21,27 1.65 8.86 38, 22,63 22.63 23.88 19,66 22.81 22,32 23,88 19,66 4,22 2,66 39, 28,87 22.37 21.71 28,39 19.22 28.87 12,37 19,22 '3,16 1,65 48, 19,29 21.93 28.43 19,77 19.84 28,18 21,93 19,29 2,64 1,84 41, 20,86 28.86 19.22 28.21 2~.~6 2~,86 28,21 19,21 8,99 8.84 42, 2~,13 28.5~ 18.74 18,59 2~.21 19,55 28,58 18,59 1,91 8.95 43. 28,83 28.83 28.65 28.58 21.16 28,83 21,16 28,58 8.59 8,33 44, 22.59 23,51 23.99 28.88 23.80 23.88 23,99 ZB,88 3.19 2.28 45. 24,39 23,33 14.39 21,46 23.78 23,78 24,39 21,46 2,94 2.24 46. 23,87 23.92 22.23 23,92 23.84 23,49 13,92 22,13 1,69 1,27 ~7, 23,51 21.49 24.39 23,88 23.8i 23,48 24,39 21,49 2,98 1,91 ~8, 21.53 28.83 22,89 22,59 21.38 21,86 22,89 28.83 2.86 1,83 ~9, 28,13 21.31 18.69 21.64 19.18 28,69 21,64 19,18 2,46 1.51 ~8, 18,37 19,83 17.86 28.61 19.51 19,83 28,61 17,86 2,75 1.58 ½1, 17,53 17,38 17,45 18,48 18.92 17,97 18,92 17.38 1,54 8.95 ½2. 18.15 17.56 18.34 18.52 19.18 18.34 19.18 17.56 1.62 8.84 ½3. 19.88 18.78 17.89 19.88 19.51 19.88 19.88 17.89 1.98 1.18 ~4. 18.19 28.02 17.93 18.74 17.75 18.34 2~.~2 17.75 2.28 1.69 ~5. 18.41 19.47 17.64 17.75 18.23 18.23 19.47 17.64 1.84 1.25 i6. 18.84 18.85 17.38 17.16 17.38 17.71 18.85 17.16 1.69 1.14 ~7. 28.58 17.75 16.65 16.83 18,26 17.75 28.58 16.65 3.93 2.83 i8. 28.91 18.59 18.67 19.18 18.63 18.98 zB.gl 18.59 2.31 i9. 19.44 28.58 19.84 21.24 19.~3 2~.81 21.14 19.83 2.28 1.23 i8. 19.55 18.52 28.43 18.81 28.39 19.55 28.43 18.52 1.91 1.83 ii. 18.81 16.76 19.51 18.74 17.45 18.13 19.51 16.76 2.75 1.38 i2. 18.37 18.92 .18.15 18.59 18.15 18.37 18.92 18.15 ~.77 8.55 i3, 17.67 18.41 18.26 19.14 18.12 18.26 19.14 17.67 1.47 8.88 i4. 16.31 18.88 16.98 18.48 18.59 17.73 18.59 16.32 2.28 1.41 ,5. 16.35 16.65 16.~6 17.67 17.38 16.87 17.67 16.86 1.62 8.81 ,6. 17.64' 15.48 17.75 17.34 15.88 16.76 17.75 15.48 2.35 1.36 ,7. 19.33 17.49 17.45 17.82 17.23 17.64 19.33 17.23 2.~9 1.69 ,8. 18.88 18.96 19.29 19.84 18.89 18.96 19.84 18.88 1.76 8.88 ,9. 17.45 18.96 18.23 18.19 18.92 18.23 18.96 17.45 1.51 ~.77 PAGE 4 ~ ARCO ALASKA INCo D.S. 7-12 DEPTH FT. SIGHA SIGMA SIGMA SI~ SlGHA PASS I PASS 2 PASS 3 PASS 4 PASS 5 SIGHA AVG. SIGMA HIGH SIGMA LOV SIGMA HI-LO MAX. DIFF. 18578. 16.98 1.6.13 15.91 16.76 16.86 16.41 16o98 15.91 18571. 16.83 16.98 15.69 17.42. 17.28. 16.98 17.42 15.69 18572. 17.45 16.54 15.58 16.76 18.34 16.96 18.34 15.58 18.573. 17.12 17.71 17.82 17.64 2~.17 17.73 28.17' 17.12 18574. 17.85 18.23 17.89 18.52 19.33 18.19 19.33 17.85 18575. 18.88 18,88 17.16 18.88 17.56 17.7'8 18.88 17.16 18.576. 17.16 16.83 17.28 17.49 17.89 17.33 17.89 16.83 18577. 19.88 19,33 18.52 17.85 28.87 18.96 28.87 17~85 18578. 19.87 19.87 19.83 17.71 19.36 19.85 19~36 17.71 18579. 19.91 17.67 18.88 19.88 19.33 18.79 19.91 17.67 18588. 19.22 18.26 18.48 19.73 18.19 18.74 19.73 18.19 1.8581. 18.81 18.15 19.22 18.12 18.45 18.48 19.22 18.12 18582. 18.78 16.58 19.73 18.89 18.59 18.78 19.73 15.58 18583. 19.73 19.11 28.32 28.47 28..61 28,18 28.61 19.11 18584. 28.58 19,88 19.95 19.9928.13 28.84 28.58 19.88 18585. 19.14 18.34 2~.58 19.69 18.78 19.24 28.58 18.34 18586. 28,32 28.69 21.89 22.15 19.84 2.8.78 22.15 19.84 18587. 22.67 22.59 2~,83 28.35 21.35 21,51 22.67 28.35 18.588. 23.44 22.63 21.98 2.8.98 21.71 22.17 23.44 28.98 18589. 23.59 21.86 22,26 22.81 22.38. 22.26 23.59 21,86 18598. 28.94 19.77 21.97 22.96 2~.58 21.27 22.96 19.77 1.8591. 21.27 21.27 21.57 21.93 21,38 21.42 21.93 21.27 18.592. 21.93 23.18 23.33 22,38 24.8.3 22.98 24.8.3 21.93 18593. 24.86 24.83 25.57 22.74 24.39 24.16 25.57 22.74 18594. 27.84 25.46 24.65 25.28 24.21 25.28 27.84 24.21 18.595. 24.47 25.24 24,36 25.46 23.55 24.58 25.46 23.55 18.596. 24,17 24.83 22,74 24,18 22.23 23.42 24.17 22.23 18.597. 25.86 23.26 24.17 23,88 24.58 24.83 25.86 23..88 18598. 23,88 22,45 24.98 23.26 27.8.4 24.12 27.84 22.45 18599. 22.63 23.26 23.55 24.58 24.21 23.68 24.58 22.63 1868.0. 23.99 24.72 21.79 22.15 22.8.8 23.84 24.72 21.79 18681. 25.86 24.72 26.85 24.18 24.21 25.8.4 26..85 24.18 18682. 25.68 27.15 24.88 25.28 24.61 25.28 27.15 24.61 1868.3. 23.92 24.83 24.54 22.56 23.22 23.62 24.54 22.56 18684. 22.12 22.78 23.88 28.28 23.88 22,56 23.88 28.28 18685. 21.42 22.34 22.26 21.86 22.23 22.86 22.34 21.42 18686. 23.26 22.93 22.34 23.84 22.23 22.74 23.26 22.23 1.868.7. 26.19 27.44 24.87 25.28 23.62 25.53 27.44 23.62 18508. 26.45 23.81 24.58 25.28 24.~3 24.65 26.45 23.81 1868.9. 25.83 23.55 25.39 24.83 24.47 24.69 25.83 23.55 18.618.. 26.12 25.89 23.22 24.18 25.28 24,69 26.12 23.22 1.8611. 23.33 24.87 23.84 23.62 24.65 24.1.8 24.87 23.33 18.612. Z'6.12 24.76 24.21 23.81 25.8.6 24.61 25..86 23.81 19613. 25.24 28.21 25.57 26.93 27.52 26.73 28,21 25,24 1.8614. 27.63 29.28 28.18 27.78. 27.41 27.86 29.28. 27.41 1.8615. 26.78 28.62 28.62 38.67 29.98 28,73 38.67 26.78 1.8616. 26.49 28.32 27.15 29.68 26.82 27.57 29.68 26.49 18617. 24°25 23.66 23.88 24.43 23.48 23.95 24.43 23.48 18618. 22.59 21.46 28.58 22.67 22.34 22.83 22.67 2.8,58 18619. 28.76 28.65 22,37 21.64 22.15 21.51 22.37 28.65 8.99 1.73 2.75 3 2.28 ,8.92 1 3.82 I .65 2.24 1.54 I 4.15 I .51 .8.77 2.24 2.31 2.31 2,46 I .73 3.19 8.66 2.8.9 2.83 2.83 1.91 1.95 2.86 4.59 I .95 2.94 1.95 2.53 1.98 3.69 8.92 1.8.3 3.82 2.64 2.28 2.98. 1.54 1.25 2.97 1.88' 3 .Bg 3.19 8.95 2 1.73 8.58 ' 1.29 1.38 2.44 1.14 8.62 8.57 1.91 1.34 1.12 8.99 8.73 3.12 8.99 8.53 1,34 1.45 1.16 1.27 1.32 1.69 8.51 1.41 1.84 8.95 1.19 1.83 2.92 8.97 1.69 1.81 1.87 1.86 2.28 ~;64 1.91 1.88. 1.14 1.47 8.77 8..81 1.49 1.34 1.95 2.11 8.4B 1.45 8.86 ARCO ALASKA 1NC. D.S. 7-12 PAGE~ 5 * DEPTH SIGHA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGHA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 18628. 19.36 2~.65 21.85 21.~9 21.79 28.87 21.79 19.36 2.42 1.51 18621. 21.57 22.26 21.53 23.11 22.37 22.26 23.11 21.53 1.58 8.84 1'8622. 23.62 22.96 22.12 23.29 23.84 23.84 23.62 22.12 1.51 8.92 18623. 23.44 21.97 22.93 23.26 23.29 23.11 23.44 21.97 1.47 1.14 18624. 23.~4 21.75 22.96 22.96 23.51 22.96 23.51 21.75 1.76 1.21 18625. 28.94 19.83 21.31 28.58 28.88 28.76 21.31 19.83 2.28 1.73 18626. 19.36 16,43 19.88 28.35 19.88 19.36 28.35 16.43 ' 3.93 2.94 18627. 17.89 16.32 17.89 18.45 18.88 17.89 18.45 16,32 2.13 1.58 1~628, 17.89 14.81 16.9~ 16.76 16.83 16.83 17.89 14.81 2.28 2.82 18629. 17.56 14.55 16.39 17.12 16.83 16.76 17.56 14.55 3.81 2.28 1063~. 15.69 15.18 14.78 15.36 15.18 15.28 15.69 14.78 8.99 8.58 1~631. 16.87 14.41 13.86 13.82 13.64 14.11 16.87 13.64 3.23 2,75 10632. 16.54 14.88 14.63 13.23 13.97 14.38 16.54 13,23 3.38 2.24 18633. 15,51 15.87 15.18 13.3~ 14.66 14.88 15.51 13.38 2.28 1,58 10634. 15.25 15.43 15.14 13.86 14.52 14.88 15.43 13.86 1.58 1,83 10635. 14.55 i4.81 14.81 14.74 14.59 14.78 14.81 14,55 8.26 8,15 18636. 14.85 14.84 14.74 14.88 14.99 14.52 14.99 14.84 8.95 8.48 18637. 15.54 14.59 13.93 14.52 14.'37 14.52 15.54 13.93 1,52 1,83 10638. 16.17 15.84 13.56 14.99 15.99 15.49 16.17' 13,56 2.61 1,93' 1~639. 15.48 18.23 14.88 16.39 15.88 15.89 18.23 14.88 3.34 2.33 10640. 16.28 18.8~ 18.37 17.45 15.76 17.14 18.37 15.76 2.61 1.38 1~641. 16.24 17.93 17.89 17.89 16.98 17.44 17.93 16.24 1.69 1.19 1~642. 17.31 18.80 16.65 16.50 17.42 17.25 18.88 16.58 1.51 8.75 18643. 16.61 16.76 17.42 16.79 17.34 17.81 17.42 16.61 8.81 8.48 1~644. 17.81 15.99 17.53 15.54 16.18 16.58 17.53 15,54 1.98 1,83 10645. 15.29 15,62 15.47 15.88 15.32 15.47 15.88 15.29 8.59 8.48 10646. 16.32 16.13 16.28 16.98 15.36 16.22 16,98 15.36 1.62 8.86 1~647. 15.76 15.43 16.72 15.88 16.28 16.82 16.72 15.43 1.29 8.78 18648. 16.61 14.92 17.75 15.62 16.54 16.33 17.75 14.92 2.~3 1.41 18649. 15.91 15.69 15.69 14.3~ 15.99 15.69 15.99 14,38 1.69 1,48 18658. 16.18 15.84 16.39 14.66 16.87 16.18 16.87 14.66 2.28 1.43 1~651. 14.96 16.68 15,65 15.14 16.54 15.82 16.68 14.96 1.73 8.86 18652. 15.29 17.38 17.75 16.87 16.32 16.85 17.75 15.29 2.46 1.56 18653. 17.81 16.79 18.84 17.68 17.34 17.34 18.84 16.79 1.25 8.78 18654. 15.76 16.17 15.95 16.28 16.24 16.18 16.28 15.76 8.51 8.33 1~655. 15.76 15.48 16.61 15.43 16.43 15.93 16.61 15.48 1.21 8.68 18656. 15.76 15.25 16.54 15.8~ 14.96 15.75 16.54 14.96 1.58 8.79 18657. 15.84 16.21 15.14 16.28 15.54 15.84 16.28 15.14 1.14 8,78 18658. 15.51 15.29 15.14 14.22 16.58 15.32 16.58 14.22 2.28 1,18 18659. 14.99 16.79 16.98 17.27 18.37 16.98 18.37 14.99 3.38 1.98 18668. 15.47 16.79 15.99 17.71 15.99 16.39 17.71 15.47 2.24 1.32 18661. 16.35 18.88 16.54 16.68 16.83 16.68 18,88 16.35 1.65 1.32 18662. 17.93 17.97 16.57 18.26 16.32 17.29 18.26 16.32 1.95 8.97 1~663. 16.94 17.53 18.88 16.98 17.67 17.51 18.88 16.94 1.14 8.57 18664. 17.64 18.41 17.97 16.65 18.48 17.97 18.48 16.65 1.84 1.32 18665. 17.42 17.97 18.~8 18.84 18.12 18.88 18.12 17,42 8.78 8.59 18666. 18.59 17.42 17.97 17~45 18.88 17.97 18.59 17.42 1.18 8.62 18667. 17.53 17.89 17.71 15.73 17.71 17.48 17.71 15.73 1.98 1.67 1~668. 17.27 17.2~ 18.48 16.65 18.48 17.56 18.48 16.65 1.84 8.92 18669. 18.84 18.26 18.67 18.15 18.45 18.38 18.67 18,04 8.62 8.37 PAGE 6 ARC~ ALASKA D.S. 7-12 DEPTH SIGMA SIGMA SIGHA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOV HI-LO DIFF. I~678. 17.97 17.45 17.~9 18.89 17.64 17.71 18.89 17.~9 1.8~ 1.18 1~671. 18.92 16.83 17.78 2~.13 18.41 18.41 2~.13 16.83 3.3~ 1.73 1~672. 17.67 17.53 16.87 19.22 18.34 17.93 19,22 16.87 2.35 1.29 1~673, 18.~ 18.45 17.12 1'5.95 15.88 17.12 18.45 15.88 2.57 1.32 18674. 18.67 17.64 16.57 15.47 16.57 17.~7 18.67 15.47 3.19 1.6~ 1~675. 16.83 16.65 15.84 16.96 17.82 16.83 17.82 15.84 1.98 ~.99 1~676. 17.23 16.31 17.~1 18~71 18.~8 17.86 18.7~ 17.~1 1.69 ~.84 1~677. 17.71 17.45 16.72 19.73 18.37 17.91 19.73 16.72 3.~1 1.82 1~678. 16.79 I9.61 16.76 18.~4 18.~ 17.78 18.81 16.76 2.86 1.~3 1~679. 16.13 18.84 17.16 16.83 18.59 17.36 18.59 16.13 2.46 1.23 1~68~. 18.5t 18.37 17.45 15.51 19.22 17.99 19.22 15.51 3.71 2.48 1~681. 18.15 19.51 16.5~ ~'16.21 17.27 17.33 19.51 16.21 3.3~ 2.18 19682. 17.97 18.5~ 17.45 15.14 16.76 17.36 18.59 15.14 3.45 2.22 1~683. 16.45 16.~8 18.23 16.9~ 18.89 18.23 18.89 16.99 1.98 1.32 1~684. 18.37 16.~9 17.38 18.67 18.15 18.19 18.67 17.38 1.29 ~.81 I8685. 18.41 17 ~2 17.67 18.26 17.~9 17.82 18.41 17o99 1.32 g.73 1~686. 17.45 16.23 18.56 17.67 17.23 17.84 18.56 17.23 1.32 ~.72 18687. 18.15 17.67 17.89 17.75 17.16 17.75 18.15 17.16 .B.99 g.59 1~688. 18.48 17.34 16.87 16.21 17.16 17.16 18.48 16.21 2.28 1.32 1~689. 16.48 16.17 16.9~ 15.62 16.68 16.68 18.48 15.62 2.86 1.8~ 1969~. 17.45 16.17 17.20 16.65 17.16 16.92 17.45 16.17 1.29 ~.75 I~691. 16.87 17.23 18.79 18.56 18.~4 17.89 18.7~ 16.87 1.84 1.~3 1~692. 17.~5 17.85 19.51 17.64 19.69 18.28 19.69 17.~5 2.64 1.41 19693. 18.3~ 17.89 18.65 18.92 19.14 18.61 19.14 17.99 2.~6 1.52 19694. 19.47 17.27 18.34 18.74 17.71 18.34 19.47 17.27 2.2~ 1.14 1~695. 29.13 16.57 19.11 17.82 17.71 18.35 2~.13 16.57 3.56 1.78 19696. 19.14 17.12 17.93 18.~4 17.82 17.93 19.14 17.12 2.BZ 1.21 1~697. 18.34 17.27 17.45 16.68 17.86 17.51 18.34 16.68 1.65 F.83 1~698. 17.42 18.85 18.12 16.76 18.96 18.12 18.96 16.76 Z.Z~ 1.36 19699. 16.76 18.23 17.97 16.68 18.48 17.58 18.48 16.66 1.88 ~.99 1~7~g. 17.56 17.~1 18.59 16.68 18.92 17.8~ 18.92 16.68 2.24 1.12 1~7~1, 17,~9 17,24 19,88 17,82 18.52 17,88 19,6~ 17,~9 2,72 1,92 .197~2, 16,61 15,42 17.82 19,~B 17.49 17,22 19,~g 15,42 3,58 1,89 19793, 17,82 17,49 17,6~ 18,81 16.87 17,65 18,81 16,87 1,95 1,16 19794, !7,95 !6;79 !7,75 18,34 17.23 17,49 18,34 16,79 1,54 0,94 1~705, 17,95 15,44 17,75 18,84 17.67 17,40 18,94 15.44 2,60 1.96 1~7B6. 16.32 16.11 17.6~ 16.68 18.23 16.96 18.23 16.11 2.11 1.27 1~7~7. 16.46 16.74 18.15 16.39 18.52 17.31 18.52 16.39 2.13 1.21 1~7~8, 17,2~ 16,13 18,34 16,57 16.94 16,94 18,34 16,13 2,21 1,4~ 1~7~9, 17,71 16,51 17.75 16,17 17.97 17,13 17,97 16,17 1,80 ~.96 19710, 18,15 16,54 18,34 16,79 17.~5 17.44 18,34 16.54 1.8~ 0,90 19711. 17.82 15.96 18.52 16.46 17.3-4 17.24 18.52 15.96 2.56 1.28 19712. 16.5~ 16.49 17.B9 17.93 15.99 16.79 17.93 15.99 1.95 1.14 1~713, 17,49 16,83 16,72 17,16 17.60 17,16 17,6~ 16,72 ~.88 ~,44 I~714. 17,67 18,13 16.54 18,34 17.45 17,67 18,34 16,54 1,80 1,14 1~715, 16,94 17,53 17,49 18,67 17.O1 17,49 18,67 16,94 1,73 1,18 1~716. 17.42 17.86 18.56 18.15 16.9~ 17.61 19.56 16.9~ 1.65 ~.95 1~717. 16,57 16,35 18,~4 17,86 17.97 17,27 18,~4 16,35 1,69 ~,92 1~718. 16.76 15.49 17.56 17.38 17.82 17.16 17.82 15.49 2.33 1.67 1~719, 17.6~ 16.B2 17.82 17.64 19.69 17.71 19.69 16.~2 3.67 1.98 kRCO ALASKA !NC. ).S. 7-12 PAGE 7 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LO~. HI-LO DIFF. 1~720. 18.56 17.28 18.3~ 17.34 18.52 17.93 18,56 17.28 1.28 0.65 1~721. 18.81 19.19 18.81 18.92 18.70 18.87 19.19 18.7~ ~.49 0.33 1~722. 19.77 19.O6 19~18 28.~2 28.94 19.77 2~.94 19.~6 1.88 1.18 1~723. 19.51 2~.38 19.47 2~.21 21.49 2~.21 21,49 19.47 2.82 1.29 1~724. 19.99 21.35 19.14 19.91 19.95 19.95 21,35 lg.14 2.21 1.4N 10725. 21.31 21.82 19.4~ 22.52 28.39 2N.96 22.52 19.4N 3.12 1.56 1~726. 21.31 19.76 21.42 21.64 19.44 2~.59 21.64 19.44 2.20 1.15 18727. 28.43 19,15 2~.32 19.69 16,,79 19,69 2~,43 16.79 3,64 2.9~ 1~728. 19.11 17.82 17.38 18.~4 15.91 17.71 19,11 15.91 3.19 1.88 1~729. 16.87 17.79 17.16 17.31 15.54 17.09 17.79 15.54 2.25 1,54 1~73~. 18.84 16.85 16.83 17.82 15.84 16.94 18,~4 15.84 2.28 1.18 1~731. 16.79 16.76 16.46 17.89 17.42 17.89 17,89 16.46 1.43 8.81 18732. 17.20 16.78 18.78 18.52 17.56 1'7.78 18,78 16.78 1.99 1,NN 1~733. 17.89 15.33 18.92 18.81 16.94 17.88 18,92 15.33 3.59 2.55 1~734. 16.72 17.94 18.88 17.49 16.9~ 17.42 18.~8 16,72 1.36 18735. 16.57 16,73 17.78 17.93 17.28 17.25 17.93 16.57 1.36 8.68 19736. 17.64 16.67 17.89 16,79 16.79 17.22 17.89 16,67 1.22 8.68 1~737. 15.47 16.43 18.19 16.65 17.05 16.74 18.19 15.47 2.72 1.45 1~738. 16.21 16.51 18.12 18.56 16.87 17.31 18.56 16,21 2,35 1.24 1~739. 15.43 15.30 16.94 17.82 17.~5 16.56 17.82 15.3~ 2.52 1.26 10740. 16.43 15.1~ 16.24 18.81 16.24 16.33 18.81 15,1~ 3.71 2.48 1~741. 16,98 17.25 16.87 16.21 16.21 16,73 17.25 16,21 1,~5 8.52 1~742. 18.12 17.12 18,37 17.81 17.34 17.62 18.37 17,~I 1.36 0.75 1~743. 18.~8 17.88 17.34 18.23 17.12 17.56 18.23 17,8~ 1.23 ~.66 1~744. 18.74 16.22 16.57 19.69 17.53 17.66 19.69 16.22 3.48 2.~4 1~745. 17.45 15.52 18.34 19.4~ 18.41 17.93 19.40 15.52 3.88 2.41 10746. 17.93 17.89 18.48 28.69 28.43 18.89 2~.69 17.~9 3.59 1.88 1~747. 18.34 18.74 2~.17 19.88 2~.72 19.53 2~.72 18.34 2.39 1.19 18748. 18.67 18.49 28.~6 19.99 20.86 19.36 2~.~6 18.49 1.67 8.87 1~749. 17.64 19.~5 18.26 18.59 2~.61 18.66 2~.61 17.64 2,97 1.96 1~758. 17.97 17.82 18.63 18.34 19.84 18.34 19.84 17.82 2.~2 1.51 1~751. 19,~ 17.64 17.56 18.52 17.97 18.88 19.~ 17.56 1,43 8.92 10752. 18.67 16.61 17.97 17.45 17.64 17.64 18.67 16.61 2.~6 1.~3 19753. 2~.24 16.5~ 17.97 17.34 19.11 18.23 2~.24 16.5~ 3.75 2,~2 1ff754. 28.69 15.76 18.41 16.9~ 18.37 18.23 2~.69 15.76 4.92 2,46 18755. 28.39 17.75 18.~8 17.31 19.29 18.52 2~.39 17.31 3.88 1.87 10756. 2~.13 18.96 17.86 17,56 18.19 18.41 2~.13 17.56 2.57 1.73 19757. 19,73 18.89 18.92 17.53 28.~2 18.92 2~.~2 17,53 2.5~ 1,48 10758. 18.85 19.51 18.12 19.22 19.83 19.~3 19.51 18.12 1.48 8.92 1~759. 18.56 18.52 19.11 17.56 19.87 18.56 19.11 17.56 1.54 8.99 10769. 17.85 18.26 17.53 16.35 18.92 17.64 18.92 16.35 2.57 1,29 1~761. 16.35 16.24 16.72 16.5~ 16,87 16.54 16.87 16.24 B.62 ~,33 1~762. 18.34 16.86 17.82 15.99 16.58 16.94 18.34 15.99 2.35 1.4~ 1~763, 17.23 17.85 16.35 18.52 17.64 17.34 18.52 16.35 2.17 1.18 19764. 17.16 19.33 19.29 18.85 17.23 18.26 19.33 17.16 2,17 1.1~ 10765, 17.42 19.51 17.49 17.67 16.9~ 17,55 19.51 16.9~ 2.61 1.96 10766. 18.15 19.51 17.45 17.27 '17.64 17.8~ 19.51 17.27 2,24 1.71 1~767. 17.93 2~.28 18.26 18.8~ ,19.87 18.54 2~.28 17.93 2.35 1.74 1~768, 18.37 19.55 18.45 18.52 17.93 18,45 19.55 17.93 1.62 1.18 1~769. 17.42 18.81 18.41 18.19 18.48 18.34 18.81 17.42 1.4~ 8.92 PAGE 8 ARCO ALASKA INC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1~77~. 18.7N 18.37 17.91 18.15 17.16 17.93 18.7~ 17.16 1.54 ~.77 1~771. 17.75 17.82 17.~5 19.58 17.34 17.75 19.58 17.~5 2.53 1.84 1~772. 17.67 16.17 18.63 19.44 16.87 17.75 19.44 16.17 3.27 1.69 10773. 17.97 17.78 18.74 16.94 18.45 17.97 18.74 16.94 1.80 1.~3 10774, 16,57 15,58 18,81 16,57 18.92 17,25 18,92 15,58 3,34 1,67 1~775, 15,18 17,23 16,61 15,99 17.42 16,61 17,42 15,18 2,24 1,43 1~776, 15,8~ 16,54 15,25 16,79 16,94 16,3~ 16,94 15,25 1,69 1,N5 1~777. 17.34 17.42 16.39 17.20 16.72 17.~3 17.42 16.39 1.O3 ~.64 18778. 17,56 16.54 16.43 18.38 16.46 17.81 18.35 16.43 1.87 1.29 18779. 18.12 17.64 17,75 17.89 16.86 17.75 18.12 16.~6 2.~6 1.69 18788. 17,86 16.72 18.34 17.49 16.68 17.49 18.34 16.68 1.65 ~.84 18781. 19.69 17.67 18.19 17.53 16.17 17.86 19.69 16.17 3.53 1.84 18782. 19.44 18,19 19.55 17.89 17.71 18.63 19.55 17.71 1.84 0.92 18783. 19.69 18.52 19.55 19.55 18.85 19.25 19,69 18.52 1.18 0,68 18784. 19.~ 18.63 18.74 21.2~ 19.44 19.~9 21.25 18.63 2.57 2.11 18785, 18.45 19.55 19.99 22.23 19.66 19.77 22.23 18.45 3.78 2.46 18786. 19.62 16.43 18.85 21.~2 19.47 19.24 21.~2 16.43 4.59 2.81 18787. 18,7~ 16.43 18,45 19,'29 19.18 18,70 19,29 16,43 2,86 2,28 18788. 15.~7 16.79 19.51 17.45 19.~3 17.45 19.51 15.~7 4.44 2.39 18789. 16,~2 18,45 19.47 17,71 .19.91 18,45 19,91 16,~2 3,89 2,42 18790. 17.86 17.12 18.78 18.48 19.58 18.35 19.58 17.12 2.46 1.23 18791. 17.16 18.84 17.82 16.87 19.88 17.82 19.88 16.87 3.O1 2.56 18792, 18,~8 16.98 17.:~ld)' 16,46 19,47 17,6~ 19,47 16,46 3,01 1,87 18793, 17,6~ 18.37 17.82 16,5~ 18.81 17,82 18,81 16,5~ 2,31 1,32 18794. 18.~8 18.56 18.63 17.78 18.19 18.21 18.63 17.78 ~.84 ~.42 18795, 17,45 19,80 19,62 19,25 19.83 19,~3 19,62 17,45 2,17 1,58 18796, 18,63 2~.87 2~,21 19,51 19.22 19,71 25,87 18,63 2,24 1,16 18797. 18,~ 2~,91 19,80 2~,69 19,66 19,8N 2~,91' 18,B~ 2,9N 1,8N 18798. 18.74 22.15 19.51 19.62 19.95 19.73 22.15 18.74 3;41 2.42 18799. 19.88 28.72 2~.17 28.24 19.22 2~.~6 25.72 19.22 1.51 ~.84 18888. 21.~2 28.10 19.18 19.95 18.81 19.91 21.52 18,81 2,28 1.1N 18881. 19.29 19.66 19.4~ 19.91 19.33 19.49 19,91 19.29 ~.62 ~,42 18882. 2~.87 19.62 18.45 18.89 18.85 19.24 2~.87 18.45 2.42 1.63 18883. 19.69 18.34 18.12 19.44 19.14 18.95 19.69 18.12 1.58 ~.79 1~884. 28.98 19.77 2~.13 28.35 19.25 ZB.12 2~.98 19.25 1.73 B.86 18885. 28.72 18.63 19.51 19.22 18.26 19.22 25.72 18.26 2.46 1.51 18886. 19.91 28.32 21.~9 19.58 19.88 2~.86 21.~9 19.58 1,51 1.~3 18807, 19,69 19.80 21.90 19,73 21.28 2~,45 21,9~ 19,~5 2,9~ 1.45 18888, 19.73 18.85 28,54 19,25 2~.39 19,73 2~,54 18.85 1,69 ~,88 18889. 2~.58 18.45 19.22 17.64 19.87 19.~7 Z~.58 17.64 2.94 1.51 1~818. 2~,5~ 28,58 2~,76 18,34 19.29 19,93 2~,76 18,34 · 2,42 1.6~ 1~811. 2~.13 19.55 2~.28 19.4~ 28.28 19.91 25.28 19.4~ B.88 B.51 18812. 2N.24 19.14 2~.1~ 19.44 20.1~ 19.77 2N.24 19.14 1.18 B.62 18813. 19.33 19.44 19.66 18.3~ 19.33 19.33 19.66 18.35 1.36 1.~3 19814. 18.26 19.44 18.15 17.56 16,57 18.NB 19.44 16.57 2.86 1.43 18815. 17.75 19.87 18.23 17.95 17.45 17.84 19.~7 17.~5 2,82 1.23 1~816. 17.93 19.73 18.~4 18.48 17.42 18.21 19.73 17.42 2.31 1.52 18817. 18.7~ 18.92 18.56 19.8~ 17.64 18.72 19.8~ 17.64 2.17 1.~8 10818. 19.99 18.23 19.66 19.33 19.25 19.33 19.99 18.23 1.76 1.18 19819. 19.8~ 29.21 28.32 2~.1~ 19.69 2~.~1 20.32 19.69 0.62 ~.31 ARCO ALASKA ZNC. D.S. 7-12 DEPTH SIGMA SlGItt SIGMA SIGI~ SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1~828. 19.84 19.73 21.46 18.38 28.58 19.88 21.46 18.38 3.16 1.58 18821. 18.74 28.13 28.24 18.34 28.47 19.49 28.47 18.34 2.13 1.16 18822. 18.85 19.47 19.4~ 17.93 19.84 19.16 19.84 17.93 1.91 1.23 18823. 18.23 19.83 19.29 18.34 18.81 18.76 19.29 18.23 1.86 8.53 18824. 19.48 28.28 19.55 19,58 18.63 19.49 28.28 18.63 1.65 8.86 18825. 28.~2 19.99 21.82 28.17 19.51 28.88 21.82 19.51 2.31 1.74 18826. 28.32 18.63 19.66 18.63 19.91 19.47 28.32 18.63 1.69 8.84 18827. 2~.87 19.77 18.96 19,83 19.22 19,48 28.87 18.96 1.91 1,47 18828. 28.13 19.51 18.81 19.44 19.48 19.46 20.13 18.81 1.32 ~.68 18829. 18.67 19.11 28.43 17.93 18.84 18.67 28.43 17.43 2.5~ 1.76 19838. 17.89 19.14 19.44 17.~5 17.64 18.12 19.44 17.85 2.39 1.32 18831. 17.93 18.52 18.96 17.89 17.89 18.21 18.96 17.89 1.86 g.75 18832. 17.38 ,19.29 19.4~ 18.~4 18.92 18.67 19.48 17.38 2.82 1.29 18833. 17.82 18.96 17.38 19.22 18.81 18.39 19.22 17.38 1.84 1.81 18834. 19.36 19.88 18.92 19.4~ 18.26 19.16 19.88 18.26 1.62 8.98 18835. 18.81 28.98 19.14 18.7~ 28.39 19.69 28.98 18.78 2.28 1.38 1~836. 18.85 19.48 19.4~ 17.23 18.15 18.78 19.48 17.23 2.17 1.54 18837. 19.18 19,87 2~.87 18.15 17.28 19.83 28.87 17.28 3.67 1.84 18838. 18.63 28.~2 19.11 18.23 17.38 18.67 2~.82 17,38 2.64 1.36 18839. 16.57 19.73 17.93 18.92 17.71 18.15 19.73 16.57 3.16 1.58 18840. 17.89 18.59 18.88 17.45 16.61 17.58 18.59 16.61 1.98 1.81 18841. 15.84 17.97 17.67 17.16 17.~9 17.16 17.97 15.84 2.13 1.32 18842. 18.84 17.64 18.81 18.78 19.48 18.52 19.48 17.64 1.76 ~.88 18843. 19.73 18.19 19.22 19.88 19.18 19.11 19.73 18.19 1.54 8.92 18844. 28.43 17.12 2~.91 19.87 18.81 19.87 28.91 17.12 3,78 1.95 18845. 18.56 17.49 2~.32 19.25 17.38 18.56 28.32 17.38 2.94 1.76 18846. 18.38 18.78 18.34 19.11 .,17.45 18.34 19.11 17.45 1.65 8.88 18847. 18.63 18.92 18.52 18.23 18.19 18.52 18.92 18.19 ~.73 8.48 18848. 2~.98 19.18 18.85 18.63 16.76 18.87 2g.98 16.76 4.22 2.11 18849. 19.55 18.26 19.18 18.78 18.85 18.98 19.55 18.26 1.29 8.64 18850. 17.71 17,86 19.69 18.34 19.8~ 18.76 19.88 17.71 2.89 1.05 18851. 17.71 18.78 18.19 18.26 18.3~ 18.24 18.78 17.71 8.gg ~.53 18852. 17.97 19.14 18.96 18.92 19.11 18.96 lg.14 17.97 1.18 8.99 1~853. 16.72 19.48 19.~3 19.36 18.59 18.98 19.48 16.72 2.68 2.26 18854. 17.23 18,56 17.89 18.34 18.63 18.23 18.63 17.23 1.48 8.99 18855. 18.84 17,53 17.93 17.38 18.81 17,93 18.81 17.38 1.43 8.88 18856. 18.37 17,82 18.23 17.89 19.~8 18.23 19.88 17.82 1.18 8.77 18857. 18.48 15.76 18.92 18.15 19.66 18.48 19.66 15.76 3.89 2.72 18858. 18.23 16.94 17.78 19.58 19.66 18.38 19.66 16.94 2.72 1.36 18859. 17.67 17.89 17.64 17.28 19.69 17.77 19.69 17.28 2.58 1.93 1886~. 18.26 16,39 18.63 18.85 19.66 18.56 19.66 16.39 3.27 2.17 18861. 16,94 18,26 19.11 19.66 19,62 18.94 19.66 16.94 2.72 2.88 18862. 17.97 19,44 19.62 18.52 28.21 19.~9 28.21 17.97 2.24 1.12 18863. 19,44 18,96 19.47 28.58 29.~2 19.73 28.58 18.96 1.62 0.84 18864. 2~.21 28,19 21.28 28.61 29.39 28.41 21.28 28.18 1.18 8.79 1~865. 29.61 28.69 29.18 19.51 18,26 29,~6 29.69 18.26 2.42 1,8~ 18866. 21.13 28.47 28.43 28.47 19.69 28.45 21.13 19.69 1.43 8.75 18867. 28.39 21.42 19.62 21.97 18.67 28.39 21.97 18.67 3.30 1.73 18868. 28.43 21.85 19.69 21.57 19.51 29.43 21.57 19.51 2.86 1.14 1~869. 19.55 19.22 18.23 28.91 19.66 19.55 28.91 18.23 2.68 1.36 PAGE ARCO ALASKA iNC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW H1-LO DIFF. 10870. 18.92 19.~3 2~.O2 19.44 18.89 19.18 2N.~2 18.89 1.14 ~.84 1~871. 19.88 18.48 19.36 18.15 18.~4 18.76 19.88 18.~4 1.84 1.12 1~872. 17.~5 18.23 17.~5 18.N4 18.34 17.69 18.34 17.N5 1.29 0.64 10873. 17.64 17.89 16.35 18.52 18.52 1'7.89 18.52 16.35 2.17 1.54 1~874. 17.34 16,76 17.12 18.41 18.34 17.58 18.41 16.76 1.65 0.83 10875. 17.~5 17.34 17.6~ 19.11 18.70 18..~2 19.11 17.O5 2.06 1~8 10876. 16.1~ 16.61 17.45 17.67 17.45 17.O3 17.67 16.1~ 1.58 0.94 1~877. 16.57 15.36 18.15 15.84 18.30 16.83 18.30 15.36 2.94 1.47 10878. 16.76 18.12 17.38 17.56 17.27 17.42 18.12 16.76 1.36 0.7~ 10879. 15.18 17.97 17.~9 16.28 17.97 17.~9 17.97 15.18 2.79 1.91 1088~. 14.92 17.49 17.16 15.36 17.53 16.43 17.53 14.92 2.61 1.51 10881. 15.65 17.53 18.56 16.79 15.88 16.79 18.56 15.65 2.9~ 1.76 1~882. 17.86 18.O4 17.12 17.56 16.65 17.49 18.~4 16.65 1.4~ ~.84 1~883. 18.23 17.93 17.~9 16.87 18.34 17.66 18.34 16.87 1.47 ~.79 10884. 2~.69 17.82 17.45 17.93 17.86 17.88 2~.69 17.45 3.23 2.81 1~885. 19.25 17.23 19.69 18.78 19.95 19.24 19.95 17.23 2.72 2.~ 10886. 18.78 17.31 18.12 19.~3 19.29 18.57 19.29 17.31 1.98 1.27 1~887. 18.52 18.15 17.38 17.34 17.38 17.77 18.52 17.34 1,:8 ~.75 1~888. 18.26 18.48 16.76 '17.45 17.45 17,62 18.48 16,76 1.73 ~,86 10889. 17.16 17.38 17.53 17.67 18.12 17.53 18.12 17.16 0.95 0.59 1~890. .15.95 18.15 17.93 18.~4 18.96 18.~4 18.96 15.95 3.~1 2.~9 10891. 17.45 19.22 17.64 18.23 18.34 18.23 19.22 17.45 1.76 0.99 1~892. 17.64 18.59 18.37 18.45 17.71 18.12 18.59. 17,64 g.95 ~.48 10893. 17.78 17.64 17.56 18.37 16.61 17.64 18.37 16.61 1.76 1.~3 1~894. 17.6~ 17.67 18.56 19.~7 18.85 18.34 19.~7 17.6~ 1.47 ~.73 10895. 18.89 18.56 18.59 19.89 19.91 19.2~ 19.91 18.56 1.36 9.72 10896. 19.~7 17.82 18.96 19.91 19.36 19.~7 19.91 17.82 2.89 1.25 1~897. 29.69 19.25 2~.1~ 2~.47 21.86 Zg.47 21.86 19.25 2.61 1.4~ 1~898. 2~.61 19.58 21.79 2~.98 21.75 20.98 21.79 19.58 2.2~ 1.4~ 1~899. 19.36 19.99 22.34 2~.72 2~.69 2~.69 22,34 19.36 2.97 1.65 1~900. 21.~5 20.47 19.33 18.81 19.99 19.93 21.~5 18.81 2.24 1.12 1~901, 19.47 19.69 19.25 19.55 18.52 19.49 19.69 18.52 1.18 0.88 10902, 19.99 17.64 19.~7 2~.32 18.37 19.~7 20.32 17.64 2,68 1.43 1~993. 19.11 17.2~ 18.52 18.81 18.85 18.68 19.11 17.Z~ 1.91 1.49 1~9~4. 19,58 17.97 19.80 18.34 18.19 18.89 19.80 17.97 1,84 ~.92 1~905. 19,99 19.29 21.~9 19.69 19.18 19.69 21.99 19.18 1.91 1.4~ 10906. 21.2~ 2~.76 19.88 2~.94 19.66 2~.43 21.2~ 19.66 1,54 ~.77 1~9~7. 2~.69 21.89 19.95 19.44 19.91 2~.26 21.~9 19.44 1.65 ~.83 109~8. 18.92 19.44 28.~2 18.59 19.47 19.31 2~.~2 18,59 1.43 ~.72 1~9~9. 19.51 2~.76 28.17 18.85 19.22 19.69 2~.76 18.85 1.91 1.~6 1~918. 19.88 2~.82 28.58 18.85 18.56 19.57 28.58 18.56 2.~2 1.~1 1~911. 19.11 19.66 28.17 28.28 Z~.~6 19.91 2~.28 19.11 1.18 ~.81 1~912. 19.51 2~.32 19.95 2~.58 19.25 19.91 2~.58 19.25 1.32 B.66 1~913. 28.58 18.78 18.85 28.54 18.88 19.29 2~.58 18.~ 2.57 1.29 1~914. 21.27 17.93 17.97 28.54 18.92 19.25 21.27 17.93 3.34 2.92 1~915. 19.29 18.19 19.~O 19.88 18.O4 18.92 19.8~ 18.~4 1.76 8.88 10916. 18.96 18.92 17.93 19.11 IB.37 18.67 19.11 17.93 1.18 ~.73 1~917. 19.40 20.24 19.99 18.70 17.38 19.35 Z~.Z4 17.38 2.86 1.96 10918. 28.58 20.69 2~.10 18.89 16.87 19.73 2~.69 16.87 3,82 2.86 1~919. 18.89 17.75 18.41 17.75 16.76 17.82 18.89 16.76 2.13 1.~6 PAGE ARCO ALASKA iNC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA $IGNA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LO~ HI-LO DIFF. 1~929. 17.45 19.97 18.63 18.67 16.61 18.96 19.O7 16.61 2.46 1.45 19921. 17.93 18.52 17.78 17.78 17,2~ 17.86 18.52 17.29 1.32 9.66 19922. 2~.13 17.89 18;15 18.79 17.71 18.39 2~.13 17.71 2.42 1.84 19923. 2~.87 19.51 18.94 17.82 17.78 18,67 2~.87 1.7.78 3,98 2.29 19924, 21.38 17.93 29.43 18,78 19.44 19,60 .21,38 17,93 3,45 1,78 19925. 2~.61 29.54 19.95 28.1~ .21.92 2~.48 21.92 19.95 1.86 9.53 19926. 28.61 29.92 19.14 28.39 28.89 2~.32 20.89 19,14 1.65 1.18 18927. 18,48 29.17 18.52 19.18 29.21 19,35 20.21 18.48 1,73 9.86 19928. 18,67 16.72 17.93 28.58 19.89 18.67 2~.58 16.72 3.86 1.95 19929. 19,22 17.67 19.22 28.54 19.89 19.11 2~.54 17.67 2.86 1.43 19939, 28,24 19,66 29,83 21.~2 29.96 29,34 21,92 19,66 .1,36 ~,68 10931, 2~.72 20.61 29.83 29.54 21.38 2N,72 21.38 2~.54 B.84 ~,66 10932. 21,75 29,59 21.99 29~59 28.94 2~.94 21.75 29.5~ 1.25 O.81 18933. 19.77 29.59 29.21 18.O4 28.82 19.99 29.59 18.~4 2.46 1.95 19934. 19,89 19.51 18,92 17.28 18.85 18.92 19.89 17,2~ 2.61 1.73 18935, 18,89 29,35 29,82 18,52 29,35 19,62 29,35 18,52 1,84 1,19 18936. 21,92 21,27 22,34 19,69 2~.87 21,92 22,34 19,69 2,64 1,32 18937, 22,12 22.19 22,12 21.69 22,63 22,12 22,63 21,69 1,93 8.51 18938. 22,88 21,29 23.55 23,51 23.84 22,82' 23,84 21,2~ 2,64 1,62 18939. 19,47 22.74 21.99 23.33 21.28 21,4~ 23,33 19,47 3,86 1,93 18949. 19.47 2~.59 19.62 19.99 21.46 2~.~6 21.46 19.47 1.98 1.49 10941, 19,83 18,59 18.84 18,78 28,82 18,81 2~,92 18,~4 1,98 1,21 18942, 17,93 18.74 18.23 19.99 19.55 18,89 19,99 17,93 2,96 1,18 18943. 19,66 29.59 18,96 18.92 19.22 19,31 2~,5~ 18,92 1,58 1,19 18944. 19.11 19.51 17.97 19.66 18.92 19,11 19,66 17,97 1,69 1.14 19945, 18,67 19.58 19.83 18,92 17,56 18,85 19,58 17,56 2,~2 1.29 19946, 17,64 18.56 17.53 17,23 17.75 17,64 18,56 17,23 1,32 0,92 18947, 17,81 15,69 18,19 17.38 17.34 17,2~ 18,19 15,69 2,59 1,51 18948, 18,26 17,64 17.38 19,~7 18.41 18,23 19,97 17,38 1.69 9,84 10949. 16.57 17.53 17.75 18.63 17.64 17,64 18,63 16,57 2,~6 1.96 19959. 18.45 17.86 18.19 17.75 18.48 18.15 18.48 17.75 ~.73 ~.49 18951. 18.41 18.88 18.19 28.39 17.97 18.24 29.39 17.97 2.42 2.15 18952. 19.~7 17.97 17.89 28.91 19.51 19.97 29.9.1 17.89 3.91 1.84 10953.- 19.89 28.39 28.32 28.58 2~.47 28.39 29.58 19.8~ 9.77 ~.59 10954. 21.53 21.79 23.77 22.15 18.81 21.79 23.77 18.81 4.96 2.97 18955. 22.82 24.14 24.98 22.~4 21.79 23.~9 24.98 21.79 3.19 1.89 18956. 22.74 22.96 25.68 22.39 23.4~ 23.97 25,68 22.39 3.38 2.61 18957. 21.75 22.37 21.49 28.32 21.68 21.68 22.37 29.32 2.96 1.29 18958. 29.18 21.71 21.57 28.58 28.94 28.94 21.71 28.19 1.62 8.84 18959. 1'9.48 29.47 19.69 29.94 2~.58 29.17 2~.94 19.49 1.54 9.77 18969. 18.~4 29.87 19.58 19.11 19.69 19.46 29.87 18.94 2.83 1,41 10961. 16.61 18.26 19.97 28.39 17.86 18.46 29.39 16,61 3,78 1.93 18962. 17.85 15.89 18.59 17.93 19.58 17.82 19.58 15.89 3.78 2.92 10963. 18.84 18.45 18.19 17.69 18.41 18.19 18.45 17.69 ~.84 9.59 10964. 18.~8 19.18 18.56 17.91 19.91 18.56 19.91 17.91 2.99 1.54 18965. 29.17 18.52 17.16 18.94 18.85 18.52 29.17 17.16 3.B1 1.65 10966. 19.49 28.82 17.75 17.31 17.67 18.54 2~.~2 17.31 2.72 1.49 10967. 18.96 17.31 17.93 17.29 17.64 17,64 18,96 17,29 1,76 1,32 10968. 17.45 17.27 19.11 18.67 17.56 18.96 19.11 17.27 1.84 1.95 1~969. 16.65 18.63 19.25 19.25 18.12 18.63 19.25 16.65 2.61 1.98 PAGE ARCO ALASKA !NC, D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA' SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1~97~. 16.72 18.41 19.84 19.36 18.37 18.41 19.84 16.72 3.12 1.69 1~971. 16.57 18.12 18.23 19.11 18.85 18.23 19.11 16.57 2.53 1.65 1~972. 17.67 18.67 16.61 18.74 16.94 17.67 18.74 16.61 2.13 1.~6 19973. 19.51 18,37 17.75 18.78 19.97 18.72 19.51 17.75 1.76 g.97 19974. 29.13 19.11 17.42 17.86 19.36 18.78 2~.13 17.42 2.72 1.36 1~975. 2~.47 18.92 16.79 17.23 17.45 18.~8 20.47 16.79 3.67 2.39 19976. 19.66 18.~ 19.~ 18.92 17.71 18.68 19.66 17.71 1.95 g.97 1~977. 19.69 17.~9 19.33 19.~7 18.81 19.E7 19.69 17.~.9 2.61 1.98 1~978. 19.69 17.56 18.74 19.~ 17.93 18.63 19.69 17.56 2.13 1.~6 19979. 18.63 17.45 19.36 19.22 18.38 18.63 19.36 17.45 1.91 1.18 1~98~. 18.26 17.56 2~.~6 19.66 18.85 18.85 2~.96 17.56 2.5~ 1.29 18981. 19.18 19.29 2~,39 19.55 18.78 19.36 20.39 18.78 1.62 1.93 18982. 18.92 19.69 19.77 19.91 19.11 19.44 19.91 18.92 ~.99 g.51 18983. 2~.1~ 19.66 29.69 2~.5~ 19.47 29.~8 29.69 19.47 1.21 8.61 18984. 18.7~ 19.99 2~.98 21.42 19.36 2~.86 21.42 18.7~ 2.72 1.36 IB985. 19.8~ 19.11 2~.91 2B. IB 19.33 19.88 29.91 19.11 1.8~ 1.1~ 1~986. 2~.5~ 18.12 2~.54 2~.8~ 18.92 19.73 29.80 18.12' 2.68 1.62 1~987. 20.58 17.6~ 18.52 2~,28 19.11 19.11' 29.58 17,6~ 2.97 1.51 18988. 29.24 19.62 19.4~ 19.29 28.24 19.77 29.24 19.29 ~.95 ~.48 18989. 18.63 18.79 19.95 19.83 2g.88 19.33 20.88 18.63 2.17 1.47 18998. 18.63 19.77 21.16 19.33 19.77 19.77 21.16 18.63 2.53 1.4~ 18991. 18.34 19.~7 21.64 19.4~ 28.72 19.98 21.64 18.34 3.38 1.74 18992. 28.35 19.69 2~.91 21.16 28.~Z 2~.43 21.16 19.69 1,47 8.73 18993. 29.72 17,49' 19.69 18.48 18.96 19.89 29.72 17.49 3.23 1.63 1~994. 18.45 17.93 17.45 15.88 16.35 17.16 18.45 15.88 2.57 1.29 19995. 15.76 16.54 15.32 16.28 14.22 15.76 16.54 14.22 Z.31 1.54 1~996. 16,39 14.39 14.88 14.7~ 15.43 15.07 16.39 14.39 2.09 1.32 1B997. 16.59 15.19 15.25 16.46 14.99 15.75 16.5~ 14.99 1.51 0,75 19998. 17.~1 15.89 15.19 17.~1 14.48 15.88 17.91 14.48 ,2.53 1,32 1~999. 15.18 16.28 18.56 16.9~ 14.85 16.28 18.56 14.85 3.71 2.28 119~. 17.27 16,98 16.83 17.75 15.21 16.98 17.75 15.21 2.53 1.76 11~91. 17.38 18.48 17.16 18.78 16.82 17.48 18.78 16.92 2.75 1.38 11~2. 16.57 16.61 16.54 19.88 17.16 16.87 19.88 16.54 3.34 3.~1 119~3. 16.39 17.~5 17.49 19.~7 17.45 17.45 19.~7 16.39 2.68 1.62 11~4. 18.85 18.48 18.89 18.34 28.43 18.85 29.43 18.34 2.89 1.58 11885. 18.26 2~.76 19.51 17.53 19.51 19.14 29.76 17.53 3.23 1.62 11006. 18.~ 18.84 17.93 17,27 18.19 17.99 18.19 17.27 ~.92 8.72 11887. 19.22 17.67 17.42 17.99 17.23 17.45 lg.22 17.89 2.13 1.76 11098. 18.~8 15.54 18.39 15.88 18.84 16.98 18.30 15.54 2,75 1.43 11899. 17.85 15.84 16.46 15.99 16.87 16.44 17.85 15.84 1.21 8,61 11019. 17.42 15.4~ 17.85 17,23 16.87 17.~5 17.42 15.49 2.02 1.65 11811. 17.31 18.84 16.83 17.99 16.72 17.~9 18.84 16.72 1.32 g.g5 11812. 16.76 16.76 17.12 15.65 17.71 16.76 17.71 15.65 2.86 1.10 11813. 19.4~ 18.37 18.45 15.18 17.89 17.77 19.48 15.18 4.22 2.59 11~14. 17.56 17.71 17.34 15,43 17.71 17.53 17.71 15.43 2.28 2.~9 11815. 15.54 16,28 17.67 16.13 17.53 16.61 17.67 15.54 2.13 1.96 11816. 15.99 14.92 15.84 16.46 16.68 15.99 16.68 14.92 1.76 1.96 11817. 14.78 15.25 15.8~ 15.1~ 17.85 15.45 17.95 14.70 2.35 1.68 11818. 15.91 14.33 14.92 14.77 15.91 15.12 15.91 14.33 1.58 8.79 11819. 14.59 15.14 15.76 15.88 16.35 15.51 16.35 14.59 1.76 8.92 PAGE ARCO ALASK,A iNC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 11029. 15.47 14.92 15.18 15.49 15.54 15.32 15.54 14.92 g.62 ~.4~ 11021. 15.51 16.17 16.46 15.58 14.41 15.58 16.46 14.41 2.06 1.18 11022. 15.10 15.88 15.73 15.69 15.40 15.56 15.88 15.19 ~.77 0.46 11023. 16.O2 16.43 15.58 15.40 15.58 15.89 16.43 15.4~ 1.O3 ~.62 11~24. 17.23 15.51 17.12 16.83 17.99 16.98 17.23 15.51 1.73 1.47 11825. 17.42 15.1~ 16.76 18.15 15.36 16.63 18.15 15.1~ 3.05 1.52 11826. 17.45 15.4~ 16.32 17.95 14.96 16.22 17.45 14.96 2.58 1.27 11827. 18.26 16.50 16.58 18.81 18.88 17.66 18.81 16.59 2.31 1.16 11828. 19.33 16.17 18.84 17.75 19.11 18.84 19.33 16.17 3.16 1.87 11829. 19.44 16.76 19.99 18.45 17.23 18.37 19.99 16.76 3.23 1.62 1183~. 18.19 16.46 18.78 18..52 18.81 18.48 18.81 16.46 2.35 2,02 11831. 17.~5 17.34 18.48 18.67 18.30 17.91 18.67 17.~5 1.62 ~.86 11832. 17.gl 17.16 16.17 28.10 lS.99 18.13 2g. lg 16.17 3.93 1.96 11833. 18.34 16.59 16.46 19.14 19.22 17.84 19.22 16.46 2.75 1.38 11834. 18.23 17.53 16.54 19.44 16.98 17.69 19.44 16.54 2.9~ 1.84 11835. 17.75 17.29 17.75 17.64 18.41 17.75 18.41 17.2~ 1.21 ~.66 11036. 18.85 18.~4 18.70 18.85 18.63 18.79 18.85 18.~4 ~.81 ~.66 11837. 18.52 19.~g 18.92 17.45 18.~8 18.46 19,.~ 17.45 1.54 1.~1 11~38. 18.89 18.34 17.67 18.88 14.99 18.~ 18.89 14.99 3.89 3.~1 11839. 16.98 18.26 16.54 19.47 15.73 17.4~ 19.47 15,73 3.75 2.97 11848. 17.34 17.6~ 16.94 18.88 15.84 17.27 18.~8 15.84 2.24 1,43 11841. 17.97 17.89 17.53 17.89 16.17 17.~9 17.97 16.17 1.8~ ~.92 11842~ 18.85 17.75 18.89 15.43 18.96 18.32 18.96 15.43 3.53 2.88 11~43. 17.45 16.94 18.~4 16.32 19.66 17.49 19.66 16.32 3.34 2.17 11844. 17.71 17.97 16.39 15.40 19.14 17.27 19.14 15.4~ 3.75 1.87 11~45. 17.16 17.64 16.17 17.23 17.85 17.14 17.64 16.17 1.47 ~.97 11846. 16.~6 17.16 16.46 15.58 15.4~ 16.~6 17.16 15.4~ 1.76 1.1~ 11~47. 14.52 16.43 16.13 16.54 17.93 16.33 17.93 14.52 3.41 1.82 11~48. 14.~8 15.62 15.14 17.~5 17.64 15.82 17.64 14.~ 3.64 1.82 11049. 18.84 17.38 15.51 16.98 16.57 16.98 18.84 15.51 2.53 1.48 11058. 19.95 17.68 16.65 16.82 18.96 17.88 19.95 16.~2 3.93 2.15 11~51. 17.49 17.34 17.64 13.64 18.78 17.49 18.7~ 13.64 5.87 3.86 11~52. 14.78 16.35 18.~8 14.11 17.12 16.18 18.~8 14.11 3.97 1.98 11853. 16.35 17.31 16.57 13.45 15.54 16.~6 17.31 13.45 3.86 2.61 11~54. 16.35 16.17 16.17 14.41 15.95 16.~6 16.35 14.41 1.95 1.65 11~55. 14.99 16.61 14.52 15.29 16.1~ 15.54 16.61 14.52 2.~9 1.~6 11~56. 15.76 15.29 15.18 15.73 15.69 15,51 15.76 15.18 ~,59 ~.33 11~57. 16.87 14.48 14.52 15.2.9 16.21 15.36 16.87 14.48 2.39 1.51 11258. 17.23 17.20 16.54 15.29 17.85 16.87 17.23 15.29 1,95 1.58 11059. 15.62 17.23 14.70 15.99 16.43 15.99 17.23 14.7~ 2.53 1.29 11~68. 16.76 16.17 14.99 15.18 16.28 15,88 16.76 14.99 1.76 ~.88 11861. 15.83 16.32 15.29 15.73 16.13 15.71 16.32 15.~3 1,29 8.68 11062. 13.86 15.76 16.4~ 14.55 15.14 15.16 16.46 13.86 2,61 1.3~ 11063. 13.41 15.99 156~ 15.25 14 37 15.O3 15.99 13.41 2.57 1.62 11864. 13.60 16.13 16.87 15.43 15 18 15.43 16.87 13.6F 3,27 1.84 11865. 13.45 16.58 14.38 15.10 15 62 14.98 16.5~ 13.45 3.~5 1.52 11866. 15.47 16.21 14.48 16.46 15 73 15.73 16.46 14.48 1.98 1.25 11~67. 15.99 14.88 14.92 15.47 14 22 15.18 15.99 14.22 1.76 B.88 11068. 14.63 15.14 15.69 15.25 16 ~2 15.32 16.~2 14.63 1.4~ O.78 11069. 14.66 15.36 15.69 15.58 16 68 15.58 16.68 14.66 2.82 1.1~ PAGE 14 AP-CO AL A:~$KA D.S. 7-12: DEPTH SIGMA SIGHA SiGHA SIGIt~ SIGMA SIGMA SIGHA SIGMA SIGHA HAX. FT. PASS I ~ASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 11ETg, 14.37 17.42 15.43 16.96 14.99 15.53 17.42 14.37 3.95 1.89 11~71. 13.12 15.88 16.39 16.1~ 15.36 15.73 16.39 13.12 3.27 2.61 I1~72. 14.63 15.47 16.92 15.36 16.~6 15.47 16.~6 14.63 1.43 ~.84 11~73. 15.8~ 15.47 16.17 15.~7 15.36 15.58 16.17 15.~7 1.1~ ~.59 11~74. 14.26 16.24 15.8~ 16.32 14.7~ 15.47 16.32 14.26 2.06 1.21 11~75. 16.~6 15.99 14.66 16.57 15.~3 15.62 16.57 14.66 1.91 ~.95 11~76. 15,58 16.13 15.95 17.23 14.85 15,95 17.23 14.85 2.39 1,29 11~77. 15.4~ 16.87 17.31 16.65 15.99 16.43 17.31 15.49 1.91 1.~3 11~78. 17.16 15.21 15.95 16.76 14.81 15.99 17.16 14.81 2.35 1.18 11~79. 16.98 17.64 17.12 18.45 16.87 17.31 18.45 16.87 1.58 1.14 11~8~. 16.32 18.15 15.95 18.85 16.46 17.23 18.85 15.95 2.90 1.62 11~81. 17.86 17.89 16.65 17.75 16.72 17.29 17.89 16.65 1.25 ~.64 11~82. 18.56 16.76 16.17 16.57 17.49 1'7.O3 18.56 16.17 2.39 1.52 I1~83. 18.~ 17.12 16.17 17.12 17.56 17.12 18.~ 16.17 1.84 g.95 11~84. 16.87 17.27 18.~4 17.78 18.26 17,66 18.26 16.87 1.4~ ~.79 11~85. 16.21 17.75 16.98 15.18 17.71 16.96 17.75 15.18 2.57 1.78 11~86. 17.~5 18.~8 16.39 16.72 17.16 17.95 18.~8 16.39 1.69 1.~3 11~87. 16.61 16.~6 16.87 17.~9 16.46 16.61 17.~9 16.96 1.~3 ~.55 11~88. 15.76 15.65 17.~1 18.67 16.83 16.83 18.67 15.65 3.gl 1.84 11~89. 14.88 16.65 17.56 2~.28 16.87 17.11 29.28 14.88 5.4~ 3.18 llBgg. 16.98 17.75 17.89 2~.58 18.15 17.95 2~.58 16.98 3.6ff 2.63 11~91. 16.94 18.~4 18.12 19.22 18.56 18.12 19.22 16.94 2.28 1.18 11~92'. 19.73 19.51 19.~ 18.26 19.69 19.35 19.73 18.26 1.47 1.~8 I1893, 19.99 18.7~ 2~.1~ 18.56 19.84 19.35 20.1~ 18.56 1.54 0.79 11~94. 17.6~ 17.78 17.86 17.38 18.92 17.78 18.92 17.38 1.54 1.14 11~95. 16.79 18.~4 18.45 17.2~ 17.31 17.62 18.45 16.79 1.65 ~.83 11~96. 16.87 17.38 19.22 18.52 18.15 18.94 19.22 16.87 2.35 1.18 11~97. 16.87 17.78 18.~ 16.87 17.64 17.44 18.gg 16.87 1.14 ~.57 11~98. 14.85 17.97 17.31 16.28 16.28 16.41 17.97 14.85 3.12 1.56 I1~99. 16.17 17.16 19.4~ 14.81 15.99 16.57 19.4~ 14.81 4.59 2.83 I11~0. 16.54 16.5~ 18.3~ 16.76 17.49 17.01 18.30 16.5~ 1.80 1.29 111~1. 15.95 15.51 17.34 16.98 16.98 16.46 17.34 15.51 1.84 0.95 111~2. 16.57 15.69 16.72 16.54 15.99 16.28 16.72 15.69 1.~3 ~.59 111~3. 14.99 14.74 15.1~ 17.89 15.1~ 15.10 17.89 14.74 3.16 2.79 111~4. 15.54 15.~7 15.29 17.89 17.~5 16,17 17.89 15.~7 2,83 1.73 111~5. 14.92 16.61 15.29 17.42 16.72 16.17 17.42 14.92 Z.5~ 1.25 11106. 16.68 16.65 15.99 17.67 16.94 16.79 17.67 15.99 1.69 ~.88 111~7, 17.97 17.23 16.43 17.45 16.76 17.20 17.97 16.43 1.54 0.77 lll~B. 17.23 16.98 16.65 17.12 17.38 17.11 17.38 16.65 0.73 ~.46 111~9. 17.12 18.~8 18.7~ 16.94 16.87 17.51 18.70 16.87 1.84 1.19 1111~. 16.79 18.59 16.65 16.32 16.32 16.65 18.59 16.32 2.28 1.95 11111. 17.16 17.89 16.87 15.88 17.~5 17.~1 17.89 15.88 2.02 1.14 11112. 16.98 16.43 16.72 16.5~ 16.87 16.70 16.98 16.43 0.55 g.28 11113. 17.42 17.34 18.52 16.94 17.~5 17.34 18.52 16.94 1.58 *1.18 11114. 17.45 15.29 18.23 18.34 17.6~ 17.60 18.34 15.29 3.05 2.31 11115. 17.23 15.1~ 18.~5 17.64 18.15 17.64 18.15 15.1~ 3.05 2.53 11116. 17.93 16.87 17.45 17.38 18.34 17.6~ 18.34 16.87 1.47 ~.73 11117. 18.63: 17.~5 16.24 16.76 18.~4 17.4~ 18.63 16.24 2.39 1.23 11118. 18.~8 18.92 17.12 16.87 17.49 17.60 18.92 16.87 2.06 1.32 11119. 18.3~ 18.26 16.79 16.68 18.45 17.56 18.45 16.68 1.76 0.88 ARCO ALASI(A INC.. D.S. 7-12 PAGE 15 DEPTH SIGMA SIGMA SIGHA SIGiMA SIGMA SIGMA SIGHA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LO&/ HI-LO DIFF. 1i12~. 16,46 15.73 17.71 17.42 16.79 16.79 17.71 15.73 1.98 1,~6 11121. 17.95 16.35 17.31 16.83 17.~9 16.96 17.31 16.35 0.95 8.61 11122. 15,88 16.~2 16.76 16.24 17.34 16.39 17.34 15.88 1.47 ~.95 11123. 16.54 16.28 15.32 18.41 16.59 16.50 18,41 15.32 3.08 1.91 11124. 17.12 15.73 15.88 17.42 17.16 16.57 17.42 15.73 1.69 ~.84 11125. 17.~5 17.12 14.74 17,89 17.93 17.12 17,93 14.74 3.19 2.39 11126, 17,6~ 16,5~ 16.58 18.63 17.45 17.45 18.63 16.59 2.13 1.18 11127. 15.76 17,38 16.5~ 17.89 17.45 16.98 17,89 15.76 2.13 1.21 11128. 15.88 15.4~ 16.76 17.2~ 17.16 16.52 17.2~ 15.'49 1.89 1.12 11129. 16.5~ 16.76 16.21 18.~8 17.95 16.77 18.~8 16.21 1.87 1.39 11139. 17.45 17.16 16.94 19.~7 18.34 17.75 19.97 16.94 2,13 1.32 11131. 16.35 17.93 17.~5 18.63 17.16 17.49 18.63 16.35 2.28 1,14 11132. 16.43 17.45 18.3~ 18.96 16.92 17.45 18.96 16.~2 2,94 1.51 11133. 15.84 19.~3 17.71 19.29 16.76 17,71 19.29 15.84 3.45 1.87 11134. 17.99 18.89 18.52 18.52 18.15 18.34 18.89 17.99 1.8~ 1.25 11135. 16.79 19.88 18.41 18.52 17.78 18,34 19.88 16.79 3.08 1.54 11136. 16.76 29.~2 17.67 17.53 16.~6 17.53 29.~2 16.46 3.56 2.5~ 11137. 16.98 17.75 17.97 17.42 16.94 17.42 17.97 16.94 1.~3 ~.55 11138. 16.83 17~31 17.91 17.45 17.16 17.16 17.45 16,83 g.62 g.33 11139. 15.88 16.72 17.~9 17.16 15.89 16.48 17.16 15.8~ 1.36 B.68 11149. 16.92 16,9~ 17.97 17.6~ 15.36 16.81 17.97 15.36 . 2.61 1.45 11141. 16.61 16.94 17.86 16.28 16.5~ 16.72 17.86 16.28 1,58 1.14 11142. 16.51 17.16 16.76 15.91 17.49 16.76 17.49 15.91 1.58 g.84 11143. 16.57 16.5t 17.34 15.4~ 16.76 16.57 17.34 15.4~ 1,95 1.18 11144. 15.55 17,75 17.75 16.54 16.87 16.87 17.75 15.58 2.17 1.29 11145, 15.76 17.23 17.78 17.78 16.5~ 17.14 17.78 15.76 2.~2 1,38 11146. 15,8~ 17.64 16.87 16.54 15.99 16.54 17.64 15.8~ 1.84 1.1~ 11147. 16,98 16,21 17.49 17.12 17.~5 17.95 17.49 16.21 1,29 ~.84 11148. 16,68 15,8~ 18.98 18.34 17.20 17.2~ 18.34 15,8~ 2.53 1.4~ 11149. 16,46 17.6~ 16.5~ 17.16 17.95 17.93 17.60 16.46 1.14 ~.57 11159. 17.64 15.99 16.21 16.28 17.89 16.92 17.89 15.99 1.91 ~.97 11151. 16.68 15,91 16.79 16.17 17.71 16.68 17.71 15.91 1.8~ 1.~3 11152. 16.21 17.86 18.19 17.49 18.23 17,84 18.23 16.21 2.~2 1.63 11153. 17.31 18.89 17.93 18.96 16.76 17.93 18.96 16.76 2.2~ 1.18 11154. 17.29 18.3~ 19.25 18.g~ 18.04 18.15 19.25 17.2~ 2.~6 1.1~ 11155. 17.31 18.34 18,45 16.28 15.80 17.31 18.45 15.89 2.64 1.51 11156. 17.2~ 18,~4 17.45 16.98 15.80 17.2~ 18.~4 15.89 2.24 1.4~ 11157. 17.12 15.21 17.64 18.34 16.94 17.12 18.34 15.21 3.12 1.91 11158. 15.69 16.43 16.17 17.97 16.9~ 16.54 17.97 15.69 2.28 1.43 11159. 15.65 17.97 16.13 15.54 16.5~ 16.13 17.97 15.54 2.42 1.84 1116~. 16.87 15.8~ 16.68 15.43 16.57 16.24 16.87 15.43 1.43 ~.81 11161. 16.32 15,69 15.76 16.17 18.~8 16.17 18.~8 15.69 2.39 1.91 11162. 16.87 16.39 16.76 15.76 18.63 16.76 18.63 15.76 2.86 1.87 11163. 17.82 17.~5 17.~S 16.46 18.04 17.25 18.~4 16.46 1.58 ~.79 11164. 15.69 16.28 16.57 18.59 18.52 17.14 18.59 15.69 2.90 1.45 11165. 16.46 17,42 17.~5 19.~3 16.83 17.12 19.~3 16.46 2.57 1.91 11166. 16.35 18.15 16.28 18.96 16.32 17.23 18.96 16.28 2.68 1.73 11167. 16.61 16.94 17.6~ 18.34 17.12 17.27 18.34 16.61 1.73 1.96 11168. 16.~6 16.98 17.45 18.92 17.67 17.45 18.92 16.96 2.86 1.47 11169. 18.23 17.53 17.49 19.22 17.71 17.88 19.22 17.49 1.73 1.34 PAGE 16 ARCO ALASKA INC. D.S. 7-12 DEPTH SIGflA SIGHA SIGHA SIGMA SIGMA SIGMA SIGHA SIGHA $'IGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOI4 HI-LO DIFF. 1117~. 17.34 18.~4 18.5:6 19.47 16.28 17.95 19.47 16.28 3.19 1.67 11171. 16.57 Z~.1~ 18.34 18.56 16.94 18.34 2~.1~ 16.57 3.53 1.76 11172, 17,53 2~,58 18.~ 16,72 18.37 18,~0 2~,58 16,72 3,86 2,57 11173, 18,34 19,22 18.78 16,76 17,45 18,12 19,22 16.76 2,46 1.36 11174, 18,59 18,.52 18,34 15,88 16.94 17,73 18,59 15,88 2,72 1.85 11175, 19,47 19,11 17,93 15,1~ 16.43 17,77 19,47 15,19 4,37 2.66 11176, 16,39 17,86 17,34 15,84 17.53 16,96 17,86 15,84 2,92 1,12 11177, 16,17 16,35 16.79 15,84 16.57 16,35 16,79 15.84 g,95 0,51 11178. 16.57 15.84 16.83 17.42 16.28 16.57 17.42 15.84 1.58 g.84 11179, 16,35 15,54 15,~3 15,62 15.99 15,69 16,35 15,~3 1,32 ~,66 11189, 16,5~ 15,99 15,29 16,98 16.06 16.13 16,98 15,29 1,69 0,84 11181, 14,81 15,84 16,46 17,42 15.4~ 15,93 17,42 14,81 2,61 1,49 11182, 13,89 14,99 17,12 16,68 16.35 15,84 17,12 13,89 3,23 1,95 11183, 15,88 16,21 16,21 17,12 16.5~ 16,35 17,12 15,88 1,25 8.77 11184. 17.49 15.47 16.98 17.31 16.83 16.98 17.49 15.47 2.02 1.51 11185. 17.81 16.59 16.98 16.9~ 17.27 16.96 17.27 16.5~ ~.77 ~.46 11186. 17.75 17.93 17.2~ 17.6~ 17.45 17.6~ 17.93 17.2~ ~.73 ~.4~ 11187. 16.28 17.89 16.~2 17.16 19.44 17.16 19.44 16.~2 3.41 2.28 11188, 17,27 17,56 15,73 18,41 18.59 17,56 18,59 15,73 2,86 1,84 11189, 17,34 17,34 15,84 17,16 17.93 17,25 17,93 15.84 2,09 1,41 11199. 16.17 17.82 17.78 18.41 17.16 17.49 18.41 16.17 2.24 1.32 11191. 15.95 17.53 17.82 16.17 16.83 16.85 17.82 15.95 1.87 ~.97 11192. 15.95 17.85 15.91 16.61 17.60 16.61 17.60 15.91 1.69 ~.99 11193. 17.12 17.97 17.~1 17.34 17.49 17.34 17.97 17.~1 0.95 ~.62 11194. 18.26 18.85 17.31 17.78 17.64 17.95 18.85 17.31 1.54 ~.9~ 11195. 15.95 19.44 16.17 19.~7 17.67 17.67 19.44 15.95 3.49 1.76 11196. 16.5~ 18.7~ 15.47 17.16 18.23 17.16 18.70 15.47 3.23 1.69 11197. 16.96 17.81 16.35 18.12 17.71 17.03 18.12 16.~6 2.06 1.08 11198, 17,86 15,88 17,38 18,41 17.89 17,64 18,41 15,88 2,53 1,76 11199, 17,45 17,75 17,28 18,59 19.93 18,02 19.93 17.20 1.84 1.~1 11299, 17,16 18,7~ 17,34 17,93 17.69 17,64 18,70 17,16 1,54 1.96 112~1. 16.57 17.71 16.46 17.86 17.45 17.16 17.86 16.46 1.40 0.7~ 112~2. 16.24 16.61 17.45 18.56 17.71 17.49 18.56 16.24 2.31 1.16 112~3. 16.57 17.89 18.3~ 18.52 17.~9 17.69 18.52 16.57 1.95 1.12 11294. 16.79 17.86 19.51 18.45 17.53 17.99 19.51 16.79 2.72 1.52 112~5. 18.19 18.74 19.66 18.15 17.45 18.45 19.66 17.45 2.29 1.21 11296. 16.76 16.32 17.53 17.53 17.78 17.14 17.78 16.32 1.47 0.83 11207. 16.82 17.~9 18.26 16.~6 18.37 17.16 18.37 16.~2 2.35 1.21 11208. 16.32 18,48 19.22 17.~1 17.12 17.75 19.22 16.32 2.99 1.47 11209. 17.42 18.45 19.47 17.64 17.~1 17.93 19.47 17.~1 2.46 1.54 11210. 17.38 17.82 16.94 17.34 16.43 17.16 17.82 16.43 1.40 0.73 11211. 17.38 17.71 18.52 17.49 18.12 17.80 18.52 17.38 1.14 g.72 11212. 17.75 18.26 18.39 19.44 18.26 18.28 19.44 17.75 1.69 1.16 11213. 19.44 18.26 18.96 19.73 18.~ 18.87 19.73 18.~ 1.73 g.86 11214. Z~.69 19.22 19.22 19.91 17.16 19.22 2~.69 17.16 3.53 2.~6 11215. 21.16 19.8~ 18.78 2~,65 17.75 19.71 21.16 17.75 3.41 1.96 11216. 19.58 18.92 18.81 19.93 17.64 18.92 19.58 17.64 1.95 1.29 11217. 17.27 18.96 18.85 19.44 18.78 18.85 19.44 17.27 2.17 1.58 11218. 16.9~ 19.44 18.52 19.73 18.~8 18.52 19.73 16.9~ 2.83 1.62 11219. 17.29 17.45 18.85 29.19 18.34 18.34 29.19 17.2~ 2.99 1.76 ARCO ALASKA INC, D.S. 7-12 PAGE 17 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOAd HI-LO DIFF, 11229. 18.23 19.18 19.22 28.65 19.77 19.44 2~.65 18.23, 2.42 1.21 11221. 18.52 19.18 18.67 28.21 19.14 19.14 28.21 18.52 1.69 1.86 11222. 19.99 2~.1~ 18.34 2~.21 2~.98 2~.18 2~.98 18.34 2.64 1.76 11223. 28.24 19.25 19.44 28.24 28.76 2~.01 2~.76 19.25 1.51 ~.75 11224, 28,43 17,97 17.6~ 2~.24 19.44 19.11 28.43 17.6~ 2.83 1.51 11225. 28.~2 19.~3 19.55 19.62 17.78 19.33 ZS.~Z 17.78 2.24 1.54 11226. 19.29 19.11 19.~7 2~.21 18.48 19.18 28.21 18.48 1.73 1.~3 11227. 18.92 19.62 19.95 19.77 28.91 19.79 28.91 18.92 1.98 1.12 11228. 19.22 17.64 19.91 19.73 19.99 19.57 19.99 17.64 2.35 1.93 11229, 19,36 18.26 19.44 19,62 19.58 19,44 19.62 18.26 1.36 1.18 11238. 19.58 28.28 18.96 19.58 20.1~ 19.62 28.28 18.96 1.32 ~.66 11231. 18.81 19.29 18.74 19.22 19.73 19.22 19.73 18.74 ~.99 8.51 11232. 17.71 18.96 19.11 18.81 ZB.5~ 18.96 2~.50 17.71 2.79 1.54 11233. 16.46 18.26 18.63 19.4~ 19.83 18.63 19.40 16.46 2.94 2.17 11234. 17,16 18.7~ 19.~3 19.91 18.59 18.78 19.91 17.16 2.75 1.54 11235. 17.23 28.69 16.98 19.69 18.92 18.79 2~.69 16.98 3.78 1.89 11236. 18.45 2~.21 18.48 19.22 18.96 18.96 28.21 18.45 1.76 1.25 11237. 18.12 18.26 18.41 18.74 17.86 18.26 18.74 17.86 8.88 8.48 11238. 18.~4 17.38 19.33 18.19 18.88 18.1~ 19.33 17.38 1.95 1.23 11239. 17,75 17.49 18.89 18.41 17.~1 17.95 18.89 17.~1 1.87 ~.94 11248. 17.~5 18.12 19.36 17.56 17.86 17.86 19.36 17.85 2.31 1.51 11241. 17.71 18.48 18.37 17.16 17.16 17.77 18.48 17.16 1.32 8.72 11242. 18.56 19.95 18.34 18.38 18.56 18.56 19.95 18.3~ 1.65 1.4~ 11243. 19,11 18.92 18.34 18.74 18.15 18.63 19.11 18.15 8.95 ~.48 11244. 19.47 18.81 19.BB 19.25 18.48 19.E8 19.47 18.48 ~.99 8.51 11245. 19.58 19.22 28.28 17.93 18.38 19.11 2E.28 17.93 2.35 1.18 11246. 18,15 19,11 19.44 16.79 18.23 18.23 19.44 16.79 2.64 1.43 11247. 18.12 17.2~ 19.25 17.89 18.52 18.21 19.25 17.28 2.86 1.95 11248. 19.62 18.12 19.11 19.33 19.33 19.22 19.62 18.12 1.51 1.1~ 11249. 28.5~ 18.37 18.41 18.81 19.58 19.88 2~.58 18.37 2.13 1.51 11258. 21.75 19.~7 2g.28 2~.82 28.32 28.28 21.75 lg.87 2.68 1.47 11251. 19.69 2~.~2 28.69 19.69 20.87 28.19 2~.87 19.69 1.18 8.68 11252. 19.55 18.85 19.66 19.87 18.74 19.2~ 19.66 18.74 ~.92 0.46 11253. 18.~8 18.81 19.51 19.83 19.69 19.~3 19.69 18.~ 1.69 1.~3 11254. 17.42 2~.2~ lg.ll 19.11 19.11 19.11 28.21 17.42 2.79 1.69 11255. 17.86 2~.28 19.48 18.56 19.44 19.~7 28.28 17.86 2.42 1.21 11256. 18.92 19.44 18.63 19.84 2~.28 19.44 20.28 18.63 1.65 0.84 11257. 17.89 19.~5 18.34 19.36 19.99 18.94 19.99 17.89 · 2,~9 1.85 11258. 17.27 18.84 17.23 18.26 19.25 18.~4 19.25 17.23 2.02 1.21 11259. 19.11 17.71 17.75 19.25 18.37 18.43 19.25 17.71 , 1.54 8.83 11268. 19.95 18.19 18.37 2~.35 19.29 19.27 2~.35 18.19 2.17 1.08 11261. 19.91 17.45 17.64 28.39 18.88 18.78 28.39 17.45 2.94 1.62 11262. 19.33 19.14 18.56 21.89 18.89 19.14 21.~9 18.56 2.53 1.95 11263. 19.62 18.30 19.69 28.21 19.99 19.69 2~.21 18.3~ 1.91 1.40 11264. 19.8~ 2~.06 18.15 19.33 28.24 19.69 28.24 18.15 2.89 1.54 11265. 2~.72 19.69 2~.65 18.92 20.43 28.17 28.72 18.92 1.88 1.25 11266. 19.55 19.14 19.51 19.11 19.88 19.49 19.88 19.I1 8.77 8.39 11267. 18.63 19.14 2~.58 21.35 2~.47 19.99 21.35 18.63 2.72 1.36 11268. 17.85 19.18 18.74 19.84 19.11 18.96 19.84 17.85 2.79 1.91 11269. 17.89 19.62 19.58 17.75 18.92 18.67 19.62 17.89 2.53 1.58 PAGE 18 CO ALASKA INC. S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGHA SIGMA SIGMA SIGHA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF.. 11278. 15.76 16.61 16.98 16.83 17.78 16.79 17.78 15.76 2.82 1.83 11271, 17.23 17.67 17.71 18.23 16.87 17.55 18.23 16.87 1.36 8.68 11272. 18.78 17.42 18.67 17.71 16.32 17.71 18.78 16.32 2,39 1.48 11273. 18.12 17.75 19.77 17.93 16.61 17.93 19.77 16,61 3.16 1.84 11274. 17.75 17.75 18.63 19.11 17.82 18.19 19.11 17.75 1.36 8.92 11275. 17.81 18.37 19.62 17.64 19.69 18.37 19.69 17.81 2.68 1.36 11276. 19.88 2~.18 18.63 18.48 19.47 19.~5 28.18 18.48 1.62 1.85 11277. 18.48 18,88 18.45 2~.35 2~.82 19.22 28.35 18.~8 , 2.28 1.14 11278. 18.59 19.69 19.95 21.,~9 19.73 19.82 21.~9 18.59 2.5~ 1.27 11279. 18.81 21.86 18.92 19.18 18,85 19.81 Z1.86 18,81 3.~5 2.85 11288. 18.84 19.~7 17.71 17.89 17.38 17.89 19.87 17.38 1,69 1.18 11281. 15.29 16.91 18.23 18.26 17.93 17.56 18.26 15,29 2.97 2.28 11282. 17.82 ' 18.85 17.75 19.22 17.6~ 18.38 19.22 17.68 1,62 8.92 11283. 18.34 17.31 lg.ll 19.11 18.26 18.34 19.11 17.31 1.8~ 1.03 11284. 18.84 17.38 18.89 22.84 17.67 18.28 22.84 17.38 4.66 3.76 11285. 17.68 17.23 19.36 19,99 17.71 18.48 19.99 17.23 2.75 1.51 11286. 18.34 17.85 28,43 19.99 18.92 18.92 28.43 17.~5 3.38 1.87 11287. 17.85 19.18 19.91 28.13 19.73 19,55 28.13 17.85 3,88 2.58 11288. 18.63 19.gB 19.95 28.59 2~.~2 19.95 28.58 18.63 1.95 1.32 11289. 19.44 19.48 ? 19.ZZ 19.62 2~.32 19.51 28.32 19.22 1.10 ~.81 11298. 16.46 28.82 18.37 19.95 17.2~ 18.37 2~.82 16.46 3.56 1.91 11291. 18.67 18.48 18.78 28.13 18.3~ 18.67 2~.13 18.38 1.84 1.47 11292. 19.22 19.66 19.88 18.48 19.22 19.22 19.88 18.48 1,4~ 8.73 11293. 19.22 28.86 28.58 28.32 28.47 28.26 28.58 19.22 1.29 1.~5 11294. 2~.82 18.19 18.96 19.58 21.57 19.58 21.57 18.19 3.38 1.98 11295. 18.88 17.93 18.67 17.34 ZB.24 18.38 28.24 17.34 2.9~ 1.95 11296. 17.57 18.88 18.59 19.47 18.67 18.52 19.47 17.57 1.90 0.95 11297. 16.91 18.38 28.39 19.88 2~.72 19.35 2~.72 16.91 3.81 2.43 11298. 18.84 17.53 19.62 18.85 Z~.l~ 18.85 2~.10. 17.53 2.56 1.32 11299. 18,79 17.36 19.84 19,48 18.52 18.79 19.84 17,36 2.48 1.43 1139~. 16.95 16.65 19.31 19.51 19.44 18.29 19.51 16.65 2.86 1,54 113~1. 16.87 18.66 28.22 18,63 19.93 18.66 28,22 16.87 3.35 1,79 11392. 19.36 19.11 19.11 28,35 19.22 19.24 28,35 19.11 1.25 1,12 113~3. 19.29 18.81 19,36 28.24 19.~3 19.2~ 28.24 18.81 1.44 1.84 113~4. 18,22 19.21 19.31 18.34 19.95 19.~9 19.95 18.22 1.73 ~.86~ 113~5. 19.41 18.28 2~,22 19.88 19.~7 19.41 28.22 18.2~ 2.gl 1.21 113~6. 28.28 19.38 19.11 19.62 19.22 19.42 28.28 19.11 1.~9 8.78 113~7. 28.63 28.11 19.36 19.69 18.85 19.73 28.63 18.85 1.78 ~.89 113~8. 19.34 19.85 18.65 2~.28 18.37 19.33 28.28 18.37 1.91 ~.95 113~9. 19.15 28.89 17.75 18.63 17.75 18.63 28.89 17.75 2.34 1.46 11319. 2~.32 18.97 17.21 19.73 19.44 19.35 29.32 17.21 3.18 2.14 11311. 18.17 17.58 17.35 19.11 19.14 18.24 19.14 17.35 1.80 ~,90 11312. 18.47 21.~3 17.98 18.74 18.12 18.47 21.~3 17.98 3.12 2.55 11313. 19.65' 23,92 18.77 28.28 2~.98 28.31 23.92 18.77 5.15 3.68 11314. 22.85 25,71 22.48 23.88 22,15 23,18 25.71 ZZ.15 3.55 2.53 11315. 26.24 23.98 24.16 24.39 24.~6 24.23 26.24 23.9~ 2.34 2.~1 11316. 23,54 ZZ.13 23.33 23,29 23,26 23,29 23,54 ZZ,13 1,41 1.16 11317. 23,92 28,78 Z1.74 24.86 22,63 22.63 24,86 28,78 3,37 1.94 11318, 28,65 28,56 2~,83 23.~4 21.~9 2~.87 23,~4 28,56 Z,47 2,16 11319. Z~.81 lg. Z1 2~.~ 28.65 2~.1~ 2~.1~ 2~.81 19.21 1.6~ ~.88 PAGE 19 ARGO ALASKA INC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA S~IGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 11329. 2~.64 21.~6 19.74 2~.54 21.31 2~.64 21.31 19.74 1.57 B.91 11321. 2~.97 21.95 21.~6 21.13 22.67 21.5~ 22.67 29.97 1.69 1.17 11322. 23,~5 23.82 22.42 22.12 22.56 22.74 23.82 22.12 1.7~ 1.~8 11323. 23.14 23.77 23.24 22.39 23.33 23.24 23.77 22.3~ 1.46 ~.93 11324. 23.9~ 23.39 22.74 23.94 23.81 23.39 23.9~ 22.74 1.16 ~.65 11325. 23.58 24.6~ 24.9~ 25.31 25.24 24.91 25.31 23.58 1.73 1.32 11326. 24.75 25.g~ 27.59 26.49 26.34 26.17 27.59 24.75 2.84 1.42 11327. 26.58 26.11 29.53 26.41 28.91 27.66 29.53 26.11 3.41 1.86 11328. 3~.18 26.94 3~.68 27.66 29.5~ 28.92 3~.68 26.~4 3.74 1.98 11329. 28.49 23.73 28.44 28.32 27.66 28.95 28.49 23.73 4.76 4.32 1133~. 24.77 22.~2 25.25 26.38 24.14 24.69 26.38 22.E2 4.36 2.67 11331. 22.61 21.82 22.92 24.96 23.66 22.94 24.~6 21.82 2.24 1.12 11332. 21.89 2.2.81 22.68 21.42 23.4~ 22.41 23.4~ 21.42 1.98 g.99 11333. 22.~2 22.49 23.95 21.57 22.7.1 22.36 23.~5 21.57 1.48 g.8g 11334. 23.35 23.~3 22.41 23.33 23.29 23.18 23.35 22.41 ~.94 g.77 11335. 26.61 24.94 22.31 25.83 26.3~ 25.17 26.69 22.31 4.29 2.86 11336. 23.8~ 23.66 23.61 28.29 28.51 25.97 28.51 23.61 4.99 2.53 11337. 25.51 25.34 25.E7 28.19 27.22 26.28 28.19 25.97 3.~3 1.82 11338. 27.86 27.7~ 24.37 24.87 27.18 26.29 27.86 24.37 3.49 1.92 11339. 27.83 26.74 26.56 29.98 29.29 26.74 29.29 2g.98 8.23 5.76 11349. 27.46 24.54 28.~8 2~.~2 31.19 26.31 31.19 2~.92 11.16 6.28 11341. 25.68 21.84 27.95 19.69 27.15 24.49 27.95 19.69 8.26 4.89 11342. ZI.SZ 19.79 25.29 2~.32 22.26 21.82 25.29 19.79 5.5~ 3.46 11343. 18.43 19.8~ 21.68 2~.94 19.95 2~.~6 21.68 18.43 3.25 1.62 11344. 18.1~ 17.18 2~.21 21.31 19.14 19.16 21.31 17.18 4.13 2.15 11345. 2~.48 18.36 19.73 19.58 19.51 19.58 29.48 18.36 2.13 1.23 11346. 21.21 17.67 2~.68 19.25 29.~6 19.93 21.21 17.67 3.53 2.26 11347. 19.7~ 17.19 18.66 19.69 19.69 19.18 19.70 17.19 2.51 1.99 11348. 18.51 16.2~ 18.85 2~.72 20.35 18.85 20.72 16.2~ 4.52 2.65 11349. 18.82 18.23 17.92 2~.58 19.gg 18.82 29.58 17.92 2.65 1.75 1135~. 19.33 19.58 17.62 2~.13 19.89 19.57 29.13 17.62 2.52 1.95 11351. 21.10 19.68 18.2~ 2~.72 2~.47 2~.Zg 21.1~ 18.29 2.89 2.gg 11352. 20.18 18.22 19.71 19.8~ 19.58 19.69 29.18 18.22 1,96 1.48 11353. 18.87 18.96 19.~ 2~.24 2~.17 19.56 2g.24 18.87 ,1.37 g.69 11354. 18.39 18.98 18.74 2~.32 19.58 19.16 2~.32 18.39 1.93 1.16 11355. 19.61 19.24 18.74 19.22 18.63 19.12 19.61 18.63 ~.98 ~.49 11356. 29.36 17.27 19.21 18.34 19.25 18.81 2~.36 17.27 3.89 1.55 11357. 19.96 17.95 19.65 18.41 19.69 19.O3 19.69 17.95 1.74 1.88 11358. 19.23 17.48 17.64 18.48 18.23 18.23 19.23 17.48 1.74 1.O~ 11359. 2~.14 16.42 16.~Z 19.99 17.53 18.~3 20.~4 16.~2 4.82 2.~1 11369. 19.31 17.39 17.93 28.17 18.48 18.62 2~.17 17.39 2.78 1.55 11361. 17.66 15.56 19.92 2~.~2 19.51 18.79 20.~2 15.56 4.46 3.23 11362. 17.22 17.56 17.69 19.66 18.~4 17.80 19.66 17.22 2.44 1.86 11363. 17.7~ 17.32 15.8~ 19.44 17.64 17.62 19.44 15.8~ 3.63 1.82 11364. 17.38 17.36 15.~3 2~.76 18.37 17.87 20.76 15.93 5.72 2.89 11365. 17.35 18.46 16.63 2~.61 18.56 18.46 2~.61 16.63 3.98 2.15 11366. 17.~9 2~.~5 17.13 19.51 19.99 18.57 20.05 17.O9 2.96 1.48 11367. 18.42 21.74 18.43 21.42 19.~O 19.92 21.74 18.42 3.32 1.81 11368. 19.34 19.33 19.42 2~.39 19.89 19.57 20.39 19.33 1.~6 0.82 11369. 19.69 2~.45 19.~1 2~.10 21.35 2~.10 21.35 19.O1 2.34 1.25 PAGE 20 ARCO ALASKA !NC, D.S. 7-12 DEPTH SIGHA SIGMA SIGMA S!GHA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1137N. 29.23 25,21 19,32 18,75 2~.72 19,77 25,72 18,75 2,~2 1,97 11371, 19,26 25,36 2~.75 19.53 21.35 29,19 21,35 19.~3 2,31 1,16 11372, 19,29 19,94 21.95 18.15 2~.24 19.94 21,95 18,15 3,8~ 2,51 11373, 19,67 t8,12 21,22 19,51 19.91 19,67 21,22 18.1.2 3,11 1,55 1,1374. 18.82 17.96 19.57 18.74 18.37 18.74 19.57 17.96 1.61 ~.83 11375, 17,53 18~57 17.89 25,17 18.7~ 18,29 2~,17 17,53 2.64 1,88 11376, 17,72 19,76 16,84 19,62 19.18 18,67 19,76 16,84 2,92 1.83 11377, 18,48 18,66 17,29 19,84 18.48 18,57 19,84 17,29 2,55 1.28 11378, 18,23 17,91 17,46 21,16 19.~7 18,49 21,16 17,~6 3,71 2,67 11379, 18,34 16,66 18,79 21.24 19.51 18,93 21,24 16,66 4.58 2,31 1138~, 19,85 18,29 18,46 21,~5 19.33 19,33 21,~5 18,29 2,77 1,73 11381. 19.84 19.86 18.37 22.93' 19.99 19.91 22.93 18.37 4.56 3.~I 11382. 25.33 19.62 19.73 22.48 2~.94 25.34 22.48 19.62 2.87 2.15 11383. 18,95 21,53 2~,41 21,53 20.58 2~,58 21,53 18,95 2.59 1,63 11384, 19,55 2~,43 19,5'3 25,47 22.34 2~,43 22,34 19,53 3,31 1,91 11385, 21,58 18,96 19,79 18,81 21.13 19,97 21,13 18,81 2,31 1,16 11386, 22,77 17,53 18,85 19,29 29.24 19,52 22,77 17,53 5,24 3,25 11387, 2~,96 17,67 18,36 19,36 21.24 19,46 21,24 17,67 3,56 1,78 11388, 19,82 17,51 2N,42 18,63 2~.32 19,47 25,42 17,51 2,91 1,96 11389, 19,96 19,64 19,62 17,53 19,22 19,43 19,96 17,53 2,43 1,9~ 11390. 2~,28 18,45 19,59 17,67 19.69 19,O7 29,28 17,67 2.61 1.45 11391, 18,99 19.35 18,23 25.47 29.39 19.35 2~,47 18,23 2,23 1,12 11392, 18,89 19,89 19,12 21,42 2~.54 19,89 21,42 18,89 2.53 1,53 11393, 25,65 19,57 19,55 24,25 19.84 2~.O9 24,25 19,5~ 4,75 4,16 11394, 25,63 25,29 19,53 23,62 22.~1 21,15 23,62 19,53 4,~9 2,47 11395, 19,32 19,85 21,56 24,65 21.60 2],56 24.65 19,32 5,33 3,59 11396, 19,67 18,79 2~,41 24,98 22.15 2~.91 24.98 18.79 6,2~ 4,~7 11397, 21,42 2~,15 2N,69 24,69 2~.69 21,O5 24,69 ZN.I~ 4.59 3,64 11398, 22,15 22,~7 19,64 24,43 21.16 22.~4 24,43 19,64 4,79 2.39 11399, 24.39 21,37 18,86 23,54 20.39 21,63 24,39 18.86 5,53 2.77 11400. 24.1~ 2~.21 19.34 22.12 22.67 21.72 24.1~ 19.34 4.76 2.38 11401. 22.84 2~.78 22.94 24.56 2~.76 22.41 24.~6 2~.76 3.30 1.65 114~2, 22.39 21,58 Z~,95 22,63 2~,24 21.58 22.63 20.24 Z.3g 1.33 11493, 29.31 23.29 21,13 22,54 29,35 21.29 23,29 Z~,31 Z.98 Z.~9 114~4, 21.27 23,89 ZN,9g Zg,76 29.5~ 21.~2 23,89 Zg,5g 3.39 Z.87 11485, 23,61 24.56 21,59 21,42 29.69 22.51 24,56 Z~,69 3,88 2,55 114~6. 22.59 23.26 2~,49 22.34 22,63 22.48 23.26 29,49 2,77 2.8~ 114~7, 23.65 21.75 22,24 22.89 2~.98 22.32 23,65 2~.98 2,68 1.34 11498. 22.35 23.82 23,82 19.95 21.79 ZZ,35 23.82 19,95 3.87 2.4~ 114~9, 21,72 21.87 22,63 2~.61 2~.39 21.51 22.63 20.39 2.23 1,12 11419, 21,65 21,61 19,79 29,83 21.86 21.24 21.86 19,70 2,16 1.54 11411, 22,93 22,57 22.58 29,58 2~.87 21,75 22.93 2~,58 2,35 1,18 11412, 22,57 23,55 22,78 2~.91 21.42 22..23 23,55 2~,91 2.64 1.32 11413, 23,29 22,93 19,81 21.68 23.04 22.36 23,29 19.81 3,47 2,54 11414, 23,47 21,91 2~,52 22.12 22.~4 22.~2 23.47 20.52 2.95 1.5~ 11415. 22.34 23.'39 21.35 22.23 22.74 22.37 23.39 21.35 2.~4 1.~Z 11416. 22.77 21.44 21.42 22.85 21.35 22.~9 22.85 21.35 1.51 ~.76 11417. 2~.~6 21.76 21.49 22.93 23.37 21.76 23.37 2~.~6 3.3E 1.7~ 11418. 22.12 19.78 22.47 22.34 23.48 22.3E 23.48 19.78 3.69 2.51 11419. 23,88 25,48 21,38 21,13 23.29 22.18 23,88 20.48 3.40 1.75 PAGE Z1 ARCO ALASKA INC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGHA SIGMA MAX. FT. PASS I PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1142,. 23.28 2~.19 21.23 .21.13 24.69 22.2, 24.69 2,.19 4.49 2.49 11421. 19.,4 2,.92 21.42 21.68 23.37 21.3, 23.37 19.,4 4.32 2.26 11422. 2,.24 19.92 21.49 2,.98 2,.35 2,.61 21.49 19.92 1.56 ,.88 11423. 2,.,7 21.63 2,.59 2,.39 19.62 2,.39 21.63 19.62 2.,1 1.24 11424. 2,.33 2,.3, 19.21 19.33 19.,3 19.68 2,.33 19.,3 1.3, ,.65 11425. 2,.31 21.34 19.59 2,.61 19.69 2,.31 21.34 19.59 1.74 1.,3 11426. 16.77 19.57 2,.2, 2,.,2 21.,2 19.88 21.,2 16.77 4.24 3.11 11427. 19.,1 17.56 19.11 2,.98 21.31 19.44 21.31 17.56 3.75 1.87 11428. 18.97 19.3, 18.99 21.,2 21.,5 2,.,1 21.,5 18.97 2.,8 1.,5 11429. 17.56 17.86 18.85 19.4, 19.66 18.63 19.66 17.56 2.1, 1.,7 11430. 17.76 18.,3 18.'' 19.4, 19.22 18o58 19.4, 17.76 1.64 ,.82 11431. 18.79 19.17 15.,1 2,.87 19.99 19.17 2,.87 15.,1 5.86 4.16 11432. 18.71 19.,8 17.48 2,.87 19.51 19.11 20.87 17.48 3.39 1.76 11433. 19.87 19.28 16.87 2,.8, 19.25 19.28 20.80 16.87 3.92 2.41 11434. 2,.19 19.62 17.74 22.15 19.14 19.67 22.15 17.74 4.42 2.49 11435. 2,.54 19.71 19.74 Z,.54 17.75 19.74 2,.54 17.75 2.8, 1.99 11436. 2,.22 18.~2 19.62 19.4, 18.48 19.12 2,.22 18.,2 2.2, 1.1, 11437. 2,.86 19'~5 19.31 18.74 2,.35 19.83 2,.86 18.74 2.12 1.,9 11438. 19.7, 2,.28 19.29 2,.28 22.37 2,.28 22.37 19.29 3.,9 2.,9 11439. 21.2, 19.,7 19.66 19.91 21.9, 2,.43 21.9, 19.,7 . 2.82 1.47 1144,. 19.,9 18.56 Z,.,1 19.95 2,.47 19.55 20.47 18.56 1.9, ,.99 11441. 19.68 17.6, 2,.47 19.69 2,.24 19.69 20.47 17.6' 2.87 2.,9 11442. 18.27 17.71 21.31 21.97 2,.5, '19.84 21.97 17.71 4.26 2.13 11443. 2,.,1 16.33 2,.14 2,.47 19.14 19.64 2,.47 16.33 4.14 3.31 11444. 17.78 18.,8 19.94 21.49 19.33 19.33 21.49 17.78 3.71 2.17 11445. 19.62 2,.1, 19.93 2,.8, 19.51 19.93 20.8, 19.51 1.29 11446. 2,.53 2,.56 2,.6~ 21.75 2~.87 2,.71 21.75 2,.53 1.22 11447. 2,.73 22.25 2,.48 21.16 2~.8, 2,.95 22.25 2,.48 1.76 1.3, 11448. 2,.45 2,.42 19.77 2,.5, 20.61 2,.45 2,.61 19.77 0.84 ,.68 11449. 23.13 22.72 18.69 19.44 29.32 2,.91 23.13 18.69 4.44 2.22 1145,. 23.25 2,.65 21.24 21.86 21.31 21.55 23.25 2,.65 2.6, 1.7, 11451. 22.46 2,.39 21.34 22.74 21.2, 21.57 22.74 2,.39 2.35 1.17 11452. 22.28 2,.46 22.7, 22.74 21.42 22.,6 22.74 2,.46 2.28 1.6, 11453. 22.91 2,.56 22.4, 22.59 2,.39 21.65 22.91 20.39 2.52 1.26 11454. 21.,2 21.3, 23.43 23.15 2,.24 21.84 23.43 2,.24 3.19 1.59 11455. 21.,4 19.87 21.,4 2,.54 2,.91 2,.79 21.,4 19.87 1.18 ,.92 11456. 18.83 21.12 22.,9 2,.35 19.73 2,.42 22.,9 18.83 3.26 1.66 11457. 2,.4, 19.3, 22.,6 2,.91 2,.21 2,.56 22.,6 lg.3, 2.76 1.5, 11458. 22.,8 2,.2, 22.46 21.97 21.,2 21.55 22.46 2,.2, 2.26 1.35 11459. 19.77 19.31 22.27 23.77 2,.28 21.,2 23.77 19.31 4.46 2.75 11460. 19.25 17.52 21.14 23.18 2,.8, 2,.35 23.18 17.52 5.66 2.83 11461. 17.84 19.44 21.28 21.27 21.31 2,.36 21.31 17.84 3.47 2.52 11462. 19.1, 2~.61 19.,3 21.16 2,.5, 2,.1, 21.16 19.,3 2.13 1.,7 11463. 21.75 2,.,3 19.,4 19.33 22.4'1 2,.54 22.41 19.,4 3.38 1.87 11464. 21.25 2,.7, 2,.44 23.18 23.22 21.83 23.22 2,.44 2.78 1.39 11465. 2,.12 2,.5, 22.91 21.27 21.31 21.27 22.91 2,.12 2.79 1.63 11466. 19.17 19.74 21.52 21.16 18.34 19.93 21.52 18.34 3.19 1.59 11467. 2~.,3 19.29 18.,6 19.33 29.54 19.33 2,.54 18.,6 2.48 1.27 11468. 18.73 17.61 17.23 19.58 18.59 18.41 19.58 17.23 2.35 1.18 11469. 18.5, 17.,4 17.53 19.,, 18.79 18.12 19.,, 17.,4 1.95 1.,7 ARCO ALASKA !NC, 0.S. 7'-12 DEPTH SIGMA SIGHA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1147~. 17.S8 17.96 17.24 17.71 17.82 17.79 17.96 17.24 8.72 8.55 11471. 18.11 18.95 18,68 18.34 18,23 18.45 18.95 18.11 8.83 8.58 11472. 19.17 16.96 18,72 19.11 18.26 18.68 19.17 16.96 2.21 1.72 11473. 28.23 16.89 18,19 19.14 17.81 18.19 28.23 16.89 3.34 2.84 11474, 19.31 16.73 16.58 28.61 lg.03 18.56 28.61 16.58 4.11 2.85 11475., 17.88 18.26 17.44 28.94 18.63 18.26 28.94 17,44 3.51 2.68 11476. 18.96 19.45 17,62 19.69 19.69 19.33 19.69 17.62 2.87, 1.78 11477. 28.12, 23.69 18.93 21.13 22.56 21.27 23,68 18.93 4.67 2.34 11478. 22.15 28.49 19.92 22.67 25.35 23.75 28.49 19.92 8.57 4.74 11479. 27.53 32.39 21.63 28.88 32.36 28.88 32.39 21'.63 18.77 7.17 11488. 36.99 33.63 29.B9 38.64 34.93 33.04 36.99 29.89 7.98 3.95 11481. 37.45 35.58 37.12 33.98 37.76 36.47 37.76 33.98 3.86 2.57 11482. 35.64 36.81 37.93 34.79 36.95 36.38 37.93 34.79 3.14 1.63 11483. 35.86 35.76 37.56 33.61 35.52 35.69 37.56 33.61 3.95 2.88 11484. 35.83 34.71 36.13 32.66 35.19 34.95 36.13 32.66 3.47 2.29 11485. 35.68 34.18 33.88 38.86 36.18 34.18 36.18 38.86 5.32 3.33 11486. 35.25 34.98 31.76 33.21- 36.81 34.28 36.81 31.76 5.85 2.52 11487. 35.33 35.13 34.99 34.42 35.38 35.13 35.33 34.42 8.91 8.72 11488. 35.98 34.18 35.83 33.46 33.13 34.52 35.98 33.13 2.77 1.38 11489. 37.42 33.99 34.99 33.79 35.81 34.99 37.42 33.79 3.63 2.44 11498. 34.73 33.81 35.38 34.42 35.23 34.73 35.38 33.81 2.29 1.72 11491. 29.78 32.79 33.85 34.97 32.77 32.79 34.97 29.78 5.27 3.89 11492. 31.13 31.63 33.51 33.76 31.ZZ 32.19 33.76 38.63 3.13 1.56 11493. 29.71 31.34 34.56 33.32 29.61 31.51 34.56 29.61 4.95 3.84 11494. 28.84 31.28 32.47 31.77 32.73 31.77 32.73 28.84 3.89 2.94 11495. 33.35 33,68 32,57 33.39 32,69 33.88 33.68 32.57 1,82 8,51 11496. 34.26 31.8~ 32.73 36.62 32.11 33.18 36.62 30,98 6.63 3.44 11497, 35.84 3~.33 32.49 34.86 38.45 32,66 35.84 38.33 5.51 3.18 11498. 33.92 32.64' 38.74 33.~2 32.22 32.62 33.92 30.74 3.18 1.88 11499. 29.29 33.54 38.54 33.79 33.79 32.17 33.79 29.29 4.51 2.88 11588. 33.45 32.89 33.51 34.12 33.17 33.45 34.12 32.89 1.24 8.68 11581. 33.68 26,35 33.~8 32.36 32.87 32.36 33.68 26.35 7.25 6.81 11582. 26.78 25.31 31.33 29.72 38.81 28.36 31.33 25.31 6.82 3.85 11583. 24.54 22.85 29.14 24.47 24.17 24.47 29.84 22.85 6.19 4.57 11584. 22.74 19,16 24.85 28.58 21.24 21.61 24.85 19.16 4.98 2.45 11585. 17.72 17,32 22.85 17,71 18.56 18.13 22.85 17.32 4.73 3.91 11586. 19.76 18,85 18.48 17.28 18.37 18.37 19.76 17.28 2.56 1.39 11587. 19.38 17,74 17.17 19.51 19.36 18.55 19.51 17.17' 2.34 1.38 11588. 18.72 18,81 17.43 18.85 28.13 18.78 28.13 17.43 2.78 1.35 11589. 28.94 28.42 19.88 28.91 21.57 28.68 21.57 lg.88 Z.48 1.59 11518. 21.15 21.38 21.98 21.27 24.86 21.58 24.86 21.15 2.91 2.48 11511. 21.43 19,83 22.18 28.21 23.15 21.28 23.15 19.83 4.11 2.17 11512. 19.42 19,69 21.87 28.86 19.36 19.74 21.87 19.36 1.71 1.33 11513. 19.49 19.83 19.99 19.36 28.76 19.83 28.76 19.36 1.48 8.93 11514. 28.87 19.69 19.76 19.62 28.94 19.88 28.94 19.62 1.32 1.86 11515. 19.24 21,18 18.28 19.11 2~.54 19.69 21.18 18.28 2.82 1.41 11516. 18.83 19.27 18.48 18.67 20.87 18.97 28.87 18.48 2.46 1.98 11517. 28.88 18.28 19.88 28.58 19.88 19,54 28.58 18.28 2.38 1.26 11518. 18.82 19,93 19.56 28.39 18.52 19.23 28.39 18.~2 2.37 1.21 11519. 19.25 19,23 lg.55 28.28 28.39 19,76 28.39 19.23 1.16 8.63 PAGE 23 ARCO ALASKA INC. D".S. 7-12 DEPTH FT. SIGMA SIGMA SIGMA SIGMA SIGMA SIGMAi'*SIGMA SIGMA PASS I FASS 2 PASS 3 PASS 4 PASS 5 .'AVG. NIGH' LOW .. $'IGMA HI-LO MAX. DIFF. 1152g. Z$.44 21.29 2J.12 18.63 19.84 25.12 21.2'9 18.63 11521. 21.75 18.78 19.33 18.56 19.40 19.33 21.75 18.56 11522. 21.55 19.38 19.73 19.44 19.84 19.73 21.55 19.38 11523. 18.63 21.12 19.72 21.16 19.88 19.89 21.16 18.63 11524. 19.38 22.73 19.74 22.$4 20.98 25.98 22.73 19.38 11525. 25.38 21.56 2J.25 18.56 21.89 28.35 21.56 18.56 11526. Z$.77 21.32 25.6825.65 18.96 25.68 21.32 18.96 11527. 19'.97 2~:~84 21.33 21.29 18.26 25.58 21.33 18.26 11528. 25.79 19,61 19.61 2~.24 19.77 19.93 29.78 19.61 11529. 21.65 2~.49 21.47 19.66 19.91 25.66 '21.65 19~66 11538. 25.57 19.21 19.89 19.51 21.~9 25.~4 21.99 19.21 ' 11531. 21.28 21.78 19.48 25.32 22.~1 21.81 22.81 19.48 11532. 22.21 24.84 2~.64 22.59 21.93 22.26 24.84 2g.64 11533. 28.11 29.73 22.26 25.79 22,85 25.79 29.73 22.26 11534. 31.76 31.64 25.25 32.47 31.92 31.76 32.47 25.25 11535. 33.81 32.49 31.51 33.65 35,96 33.65 35.96 31.51 11536. 35.$4 32.36 33.53 35.23 36.22 34.38 36.22 32.36 11537. 34.35 37,16 34.68 35.85 37.69 35.92 37.69 34,35 11538. 32.52 35.98 37.65 37.85 37.18 36.82 37.88 32.52 11539. 33.25 35.38 36.98 38.46 36.44 36.18 38.46 33.25 11548. 35.36 35.6S 36.87 37.25 3'6.55 36.38 37.25 35.36 11541. 35.96 36.74 35.85 37.43 36,95 36.61 37.43 35.88 11542. 37.35 37.85 35.89 37.17 37,14 37.89 37.38 35.89 11543. 38.62 38.69 37.35 36.11 38.89 37.98 38.69 36,11 11544. 39.86 37.66 37.71 36.55 36.51 37.66 39.86 36.51 11545. 36.39 36.56 35.71 35.59 37.32 36.39 37.32 35.59 11546. 37.$6 37.46 37.49 35.96 37,14 37.14 37.49 35.96 11547. 36.49 38.83 37.48 35.96 37.61 37.85 38.g3 35.96 11548. 36.83 37.86 36.79 38.79 36.51 36.92 38.79 36.51 11549. 37.35 35.84 36.36 37.87 38.49 37.11 38.49 35.84 11558. 36.81 34.28 35.58 37.28 37.58 36.39 37.58 34.2~ 11551. 37.22 33.26 35.21 33.98 36.47 35.23 37.22 33.26 11552. 36.63 35.98 34.99 38.89 33.24 33.24 36.63 38.89 11553, 34,97 26.88 33.31 31.44 38.78 31.44 34.97 26.88 11554, 29,37 27.74 31.46 29.31 3~.Z9 29.68 31.46 27.74 11555. 26,58 28.87 28.81 27.52 29.72 28.15 29.72 26.58 11556. 27.85 29~43 26.48 26.12 28.25 27.37 29.43 26.12 11557, 29.63 28.$1 27.91 27.74 27.44 27.91 29.63 27.44 11558, 26,48 27.71 28.51 29.42 29.53 28.51 29.53 26.48 11559, 31.54 27.98 28.88 33.32 31.37 38.65 33.32 27.98 11568. 32.63 29.13 28.53 33.13 31.Z4 38.88 33.13 28.53 11561. 38.24 29.$9 25.49 29.94 25.97 27.96 38.24 25.49 11562. 24.99 28.88 23.23 27.59 26.~1 26.85 28.88 23.23 11563. 25.44 29.51 24.$5 25.28 25.28 25.36 29.51 24.85 11564. 28.39 26.51 26.88 27.44 24.14 26.51 28.39 24.14 11565. 31.67 22.38 23.94 23.99 21.~5 23.94 31.67 21.85 11566. 26.87 21.92 22.18 28.58 21.79 21.98 26.87 28.58 11567. 28.89 22.84 28.32 28.61 2~.~2 28.35 22.84 28.82 11568. 22.11 21.35 22.55 25.21 19.4Z 21.16 22.55 19.48 11569. 23.82 23.39 28.69 21.85 19.47 21.43 23.39 19.47 2.66 3.19 2.17 2.54 3.34 3.88 2.36 3.87 1.89 2.88 1.87 2,53 4.28 7,47 7,27 4,45 3.86 3.34 5.27 5.25 1.89 1.63 1.41 2.58 2.54 ].73 1.53 2.87 2.28 3.45 3.37 3.96 5.74 8.17 3.72 3.14 3.31 2.19 3.86 5.34 4.61 4.75 5.65 5.46 4.26 IZ.61 6.29 2.81 3.15 3.92 1.49 2.42 1.82 1.27 1.75 1.75 1.72 2.32 8.77 1. 1 .,85 1.53 2.57 3.94 6.55 2.31. 2 .~'2 1.77 4.29 2.98 8.94 g.82 1 I .88 I .39 8.93 1.18 I .89 1.87 2.87 2.19 I. 9'9 3.39 4.64 1.86 1.57 2.87 1.72 2.83 2.67 2.35 2.46 2.82 4.15 2.37 7.72 4.89 1.69 I .76 1.96 PAGE 24 ARCO ALASKA INC. D.S. 7-12 DEPTH SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA SIGMA MAX. FT. PASS 1 PASS 2 PASS 3 PASS 4 PASS 5 AVG. HIGH LOW HI-LO DIFF. 1157~. 22.76 23.81 23.27 22.63 2~.83 22.76 23.81 2~.83 2.97 1.93 11571. 24.~1 22.48 22.55 21.57 22.~8 22.48 24.~1 21.57 2.44 1.53 11572. 22.31 23.10 21.21 22.45 21.31 22.15' 23.10 21.21 1.89 8.95 11573. 19.75 2~.28 19.5~ 22.88 21.46 28.68 22,~8 19.58 2.58 1.48 11574. 18.91 19.02 18.53 19.33 20.83 19.12 28.83 18.53 2.38 1.71 11575, 20.22 20.90 17.47 18.34 19.62 19.28 28.9~ 17.47 3.44 1.81 11576. 28.18 19.~ 18.98 28,86 20.61 19.79 2~.61 18.98 1.63 8.82 11577. 19.98 18.92 2~.18 21.2~ 19.69 19.98 21.28 18..82 3.18 1.88 11578. 18.19 19.40 19.91 28.91 19.22 19.55 28.91 18.19 2.71 1.36 11579. 18.66 18.26 17.79 19.58 19.11 18.68 19.58 17.79 1.79 0.98 1158~. 18.5~ 18.13 18.99 18.63 19.66 18.75 19.66 18.13 1.53 8.91 11581. 28.24 18.6~ 19.97 18.26 18.52 19.25 28.24 18.26 1.98 B.99 11582. 21.03 19.12 2~.~8 19.80 2~.28 28.84 21.~3 19.12 1.92 8.99 11583. 19.~7 29.15 18.96 19.40 2~.02 19.55 28.15 18.96 1.18 8.68 11584. 17.46 19.55 17.~6 19.48 18.74 18.43 19.55 17.86 2.48 1.37 11585. 19.32 19.13 18.61 19.47 19.69 19.38 19.69 18.61 1.89 8.69 11586. 19.66 19.48 19.79 19.58 20.87 19.68 2~.87 19.48 1.39 1.18 11587. 19.06 19.80 18.35 19.11 19.55 19.11 19.88 18.35 1.45 8.76 11588. 18.87 19.45 18.~3 18.52 19.~ 18.76 19.45 18.83 1.42 8.73 11589. 17.68 18.96 17.84 19.8~ 2~.91 18.96 '28.91 17.68 3.23 1.95 1159~. 19.47 2~.98 17.89 19.4~ 2~.35 19.47 28.98 17.89 3.81 1.59 11591. 18.84 22.28 19.I9 18.89' 22.23 2~.56 22.28 18.84 3~44 1.72 11592. 17.54 21.23 28.78 28.35 21.98 28.78 21.98 17.54 4.36 3.16 11593. 19.78 21.23 21.81 28.83 19.36 28.48 21.23 19.36 1.86 1.83 11594. 21.42 21.52 21.27 21.79 2~.91 21.4B 21.79 28.91 8.88 8.49 11595. 21.72 29.~8 23.19 21.9~ 29.43 21.63 23.19 2~.88 3.10 1.55 11596. 21.25 19.02 21.15 22.23 2~.94 21.18 22.23 19.82 3.2~ 2.87 COMMENTS: ARCO ALASKA INC. D.S. 7-12 SERVICE TABLE **'G25 ~.A*** F.~LE LABEL # TI .... A'T 1~42~. FT. ---- GR1 : 35.854 GR2 : 35.732 GR3 : 4!,.g61 ,GR,4 ~ 46,,:2ZB' ,G~B :. 44.t24 NL1 = 21.567 NL2 · 21.~89 NL3 21.93~ NL4 '2 23.9:7 NL5 = 19.988 GII : 1289.2 GI2 1~1 8 Gl3 : 1~6~.6 'L14 : 1254.9 ~L4 ~254.~ NLL : 21,567 #LLO: 1~:.988 I~L~,~ 23.917 H~LOI ~,~29~' A~ 1~6Z~, FT. ---- GR! : 56,220 GR2 : 60.1Z2 GR3 : 8g.~78 GR4 = 65.854 GR5 : 89,51Z NL! : 19,35~ HLZ ' 2,~.64g NL3 : 21.~53 NL4 : 21.~89 NL5 ; 21.787 Gll : 1392.Z GI~ , 1£1~,8 G13 : 1441.2 ~14 : 14~5 g G~4 : 149G.9 NLL : 2g.$~9 NLLO: 19.364 NLH~: 21.787 H~LO: 2.4235 D[FL: DATA ~OE$ FROH 1~2~. TO 1:596. : 1~75, FT. OF DATA ARCO ALASKA [NC. O.S. 7-12 SERVICE TABLE *wwG25 RA*** F~LE LABEL · TI .... ~? 1~42~, F-, .... G21 = 1156~. ~22 : 11531. ~23 : II2~B. GZ4 = ~77g,2 GZB : 14~41, RATI~ 1.973~ RAT2:2.2426 RAT3; 2,~'77Z RAT4:2.~'243 RATS: 1.~24~ NON1: 11.618 HON2: 12.647 MON2: 13,235 HON4: 12.~59 MONS: 14,559 .... AT 1~62~. FT. ---- G21 : 1348B. G22 : 1~56. G23 ~ 125~7. GZ4 = 14~54. ~25 = 14729, RAT1: 2.g~98 RAT2* 2 3223 RAT3: 1,9424 RAT4~ 1.9792 RATS: 2,~343 MONI: 11.912 MON2: 12.~59 MON3: 12.941 ~qON4: 12.5~g MONS: 13.971 DATA GOES FROM 1~42~, TO 1~596. : 1176. FT. OF DATA ---DOUBLE EOF: END OF *TAPE--- ~li ~ i"I ,1 1 ]. 1 1 1 ]1 Jl 1 ! II 1 I ,! I iJ. 11 I ,1 1 1 I ] l .t: 1 f ! I FF YY ~Y Y~ Y¥ Y~ ~¥ Y¥ 1_ 5 0 0 D A ::t' 1 I 7-HAY- 79 '15: 05: 41 15:0~:11 1070~, $5412 0 1 f 1.1,~.; i~!A[,.'~l~:l [:I).iLT .00! O24 991 51.!0 ~,-iE~,l~ $ ITt-.. DSiI'E t-12 1 4 [;.i l.j ~! I 1 3_11 b, (J P,'I i-4 ! t 7 0 0.0 0 0 I 1600. ! I 4 00.000 I t ',~ (? 0 . ,r,) 00 1. 1100 o 0()© 1. !O(}0.00() 1 o 900. O 00 t O R !1~ 0. C, O ('.) 1(~'?O O. 000 1 ,fl ~ ,') 0. () 90 ! {}5{}0. 09(? ]. 0 ~ ()u. 0 0 0 I r}200.0(;0 I {) 1 C~(). 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C I[,0 20. 500 C ~ L I 9. ~ 30 C 1. l.,i) 1 C & b L I 0.0 00 Ci[,O CALl ~. ~59 CALL CII,L} ~q.117 C J.l,~) I b9.~77 CAt,i '1 CIL, O ~26,. 31 l C 1 !,[:, 416.2o0 .250 CbL8 **%***~*** SE' -l, ll 7.484 C IbF! 160 o 401 CbL, 8 1) T 7 q. 150 $ P CLhPi i86.31 7 CLL8 i.)T 81 · I 8~ bP C 11,., f4 335.518 C b L, 8 D T 8 3.00 O $ P C I. b ~) 7 i. 1, i I C 1,, b 8 i.,}T 67. 503 8P C i b i~: I 02, i 55 C b b 8 ~'I' 92. 750 8P C II, F~ 122. 021 Ebb8 i)T 95. 375 8P C I, I., ¢:~ 87.193 C h b 8 O 1' 94.000 8 P C i[[.,P~ I 8. 296 CLb8 b:[: 88. 000 8P L; T 9 ]. 188 S P C ] b ~'4 37.493 C b ti, 8 L., t' 92. ] '15 5 P [Jr[ 99.56 ] 8P C.I Li< 30.9 78 Chb~ L) l> b 4,0 () 0 bP C .1 L, ~ 68.049 C b b 8 ~ i 8 ~. 0 00 S P D"[ 103. 188 bP C tbr,> 441. 379 Cbb8 L.;, [' 1 () 1. ~75 C LI,F" ~}31 . ~9 CLb~ L;T 112. 15~} 8P C !I.,N 424.U'90 Chh8 t.> "t' I 20.750 S P lbI.514 -9i .978 116.047 -1 23.041 162.3 ]4 -1 :t8.8't~ 55.268 -lO~.llO 11 o9-~1 -1q. 5.351 90.823 -153.058 65.911 - 1 :),]. 21 ,~ 58. 770 -1 ~. 159 ,:i o. 973 -155.523 2'i .b34 -157.021 29.49.3 -1 b8. '799 lb.385 -1 7o.055 17.9 (.)7 -1,41 .4b~ ~2.-154 -11 I .~)5i 194.529 -81.469 389.gqi - t ? .203 -'*13.~05 350.050 - 7, 5-.. 9.-2 ~ 0000. 000 $17 33,409 9900. 000 ~P ~ 3. 000 GF< ] 10.56.~ 9800. 000 SP 34. 250 G.R 9 7. ~ 75 9700. 000 ~P 30.4~ G F~ 82.938 g6u0. 000 SP 28,469 L;)< 90.81 3 9500,000 8P 28.50() G R 105.759 9400. 000 6P 25,500 G F~ 98.875 9 ~00, ¢)00 bP ;I 5,000 g P 15 '7.875 g~O0. 000 SP 1. 1.000 G ~ '21. 0.5 (.} 0 qlO0,O00 6P 16,781. 6R 1 2~. i88 9000. 000 SP I 3. 760 G R 10 ~. 625 agO0. 000 6P ,t. 200 OR :I 77. ;375 155.025 ~ 7()0. 000 ~P - 2.5(_)0 (.~ R 0.000 ~6t) O. 000 5P -0.5{.10 G b ~.). 00 () ~409.(')00 6P -1 3.500 G ~< 0. () 0 ~) ~ ~00.(.)0(') 6[> -t2,750 G l~ 0.000 (., P 0.0 () ~.) C .I i:.,/2 CALl C 1 ,t, 0 C A 1,~ i C I L O CALl C I L O C A h 1 C l b L) C A L 1 C I L i.2 CALI C I. I, D C AL, ~ C 1 t.., O CALl C ] b L) C A I., I C 1. L D CALI C I b D CALl C ~ .i, t C CAi,I C i L D C C l .b U CAt~I C C ] C ] b C Af.,i V A !., ~1K 5 ~ o. 4:25 9.7 34 701.851. I 0. 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