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174-055
ALASI OIL AND GAS CONSERVATION COPlPlISSION FRANK H. MURKOWSKI, GOVERNOR 333 W. ~ AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 December 17, 2002 F.E. Hand, Jr. Global Remediation, Major Projects - Upstream ExxonMobil 601 Jefferson KT 1244 Houston, Texas 77002-7901 Re: Location Clearance, Gwyder Bay South #1 (PTD 174-055) Dear Mr. Hand: On August 7, 2002 our Inspector John Spaulding accompanied your representative Jeff Osborne for a final location clearance inspection of the subject well. P&A of the well had been completed in April, 2002. Inspectors John Crisp and Chuck Scheve had witnessed those activities. On this latest inspection, Mr. Spaulding found the location to be in satisfactory condition and concluded that the well be approved for final abandonment. He noted that pad and gravel runway are likely to remain at the site and the area is being used by the USGS and Alaska Clean Seas during the summer months. The Location Clearance inspection showed the location to be in compliance with 20 AAC 25.170 Onshore Location Clearance and therefore the Commission requires no further work on the subject well. However, Exxon Mobil remains liable if any problems were to occur in the future with the well. If plans are made to remove the gravel improvements at the site, the Commission requests to be notified so that a final inspection may be conducted. If you have any questions or need further information, please contact me at 907-793- 1250. Sincerely, Thomas E. Maunder, PE Sr. Petroleum Engineer MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: THRU: Camille Taylor, Commissioner Tom Maunder,~~ P. I. Supervisor" -~-~/,,~,'~ FROM: John Spaulding, SUBJECT: Petroleum Inspector DATE: August7,2002 Surface Abandonment's North Slope Multiple Locations August 7 2002: I traveled to multiple locations as listed below, to witness location abandonment's. MPU N-01 (PTD 184-013): BPXA, the pad and the area surrounding the abandoned well was clean and did not have any standing water located over the area that was presumed to be the casing stub. I recommend this well for final abandonment and location clearance. West Sak 25 (PTD 182-027): As noted in the accompanying photos there is water standing over what is presumed to be the old well, also there appears to be old drilling mud mixed in with the gravel that is kind of bunched in a haphazard manner. I do not recommend this well for a surface location clearance until further remediation to the site has been done. Gwyder Bay South 1 (PTD 74-55): The pad area has a considerable amount of gravel as well as a 5000' runway. Mr. Osborne the Fairweather rep. informed me that the DNR is considering leaving the runway as well as other portions of the pad. The USGS uses the area near the river for a camping and staging area during the summer months. Alaska Clean Seas also uses this area to stage spill remediation equipment, as this area is located near the mouth of the Kuparuk River Delta. The area located near the wellhead is mounded up and appears OK for final abandonment. I recommend Gwyder Bay So. # 1 for final abandonment. Once a decision has been made and gravel remediation has been performed, the AOGCC must be invited for a final location clearance Kuparuk River State 1 (PTD 169-042): The pad area around the wellhead was in excellent shape and was hard to tell where the well was located as noted. I recommend Kuparuk St. 1 for final abandonment and location clearance. Sag Delta No. 1 (PTD 175-058): The pad area is located on an old island that is washing away and going back to it's natural state. As noted in the photos the area looks quite good. I recommend a location clearance be granted. 5CANNED FEB 0 ¢. 2003 surface location abandonmentsl.doc SUMMARY: I inspected the ExxonMobil and BPX locations for suitable location clearances. Attachments: Location photos NON-CONFIDENTIAL 5GANNED FEB 0 4 2003 surface location abandonmentsl.doc ~ ALASKA OIL AND GAS CONSERYA~iON COP~IISSION FRANK H. MURKOWSKI, GOVERNOR 333 W. 7TM AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 ~ 0a)7) ~14~ FAX (907) 276-7542 December 17, 2002 F.E. Hand, Jr. Global Remediation, Major Projects - Upstream ExxonMobil 601 Jefferson KT 1244 Houston, Texas 77002-7901 Re: Location Clearance, Gwyder Bay South #1 (PTD I74-055) Dear Mr. Hand: On August 7, 2002 our Inspector John Spaulding accompanied your representative Jeff Osborne for a final location clearance inspection of the subject well. P&A of the well had been completed in April, 2002. Inspectors John Crisp and Chuck Scheve had witnessed those activities. On this latest inspection, Mr. Spaulding found the location to be in satisfactory condition and concluded that the well be approved, for final abandonment. He noted that pad and gravel runway are likely to remain at the site and the area is being used by the USGS and Alaska Clean Seas during the summer months. The Location Clearance inspection showed the location to be in compliance with 20 AAC 25.170 Onshore Location Clearance and therefore the Commission requires .no further work on the subject well. However, Exxon Mobil remains liable if any problems were to occur in the furore with the well. If plans are made to remove the gravel improvements at the site, the Commission requests to be notified so that a final inspection 'may be conducted. If you have any questions or need further information, please contact me at 907-793- .1250. Sincerely, Thomas E. Maunder, PE Sr. Petroleum Engineer ~nn..~fS BF.L ~GANNED JAN 2 ~: 2003 ExxonMobil Refining & Supply Company Global Remediation Post Office Box 4552 Houston, Texas 77210-4552 June 28, 2002 Ms. Camille Oechsli Taylor Chair and Commissioner Alaska Oil & Gas Conservation Commission 333 West 7~ Avenue, Suite 100 Anchorage, Alaska 99501 E onMobil Refining & Supply Attn: Mr. Tom Maunder, Senior Petroleum Engineer RE: WELL COMPLETION OR RECOMPLETION REPORT AND LOG - FORM 10-407 PLUG AND ABANDONMENT OF EXXONMOBIL GWYDYR BAY SOUTH #1 WELL Dear Mr. Maunder: On behalf of ExxonMobil Exploration Company, ExxonMobil Refining & Supply Company Global Remediation hereby submits AOGCC Form 10-407, final wellbore schematic, and summary of work-over operations to plug and abandon the Gwydyr Bay South #1 Well. The well was permanently plugged and abandoned by setting a 150-foot (in length) surface cement plug, cutting off all casing strings a minimum of five (5) feet below the adjacent Kuparuk River channel mudline datum, and installing a well marker plate on the 20-inch surface casing (identifying well name, spud date, TD and location/Sec, T., R.). Pertinent information attached to this completion report includes the following in duplicate: 1. Form 10-407 Well Completion or Recompletion Report and Log 2. A summary of well abandonment operations 3. Schematic showing the final condition of the wellbore Please note that there was an error on Form 10-403. TVD for perforations was reported as greater than MD. The attached Form 10-407 has made the corrections for TVD of the perforations open to production. Please disregard the incorrect TVD's from Form 10-403, dated 3/15/02. If you have any questions or require further information, please contact the undersigned at (713) 656~ 9179 or Jeff Osborne at (907) 258-3446. Thank you for your attention to this matter. F.E. (Buddy) Hand, Project Manager, Global Remediation Attachments: cc: Steve Schmitz, ADNR-DOG STATE OF ALASKA 'ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well OIL: GAS: SUSPENDED: ABANDONED: X SERVICE: 2. Name of Operator ' 7. Permit Number ExxonMobil Exploration Company cio ExxonMobil Refining and Supply Co. Global Remediation 74-55 Classification of Service Well 3. Address 601 Jefferson Street, Room 1244 Houston, TX 77002 4. Location of well at surface 210'N, 2140'E, of SW Corner, Sec 8, T12N, R13E, Umiat Meridian At Top Producing Interval 103'N, 2169'E, of SW Corner, Sec 8, T12N, R13E, Umiat Meddian At Total Depth 44'N, 2140'E of SW Corner, Sec 8, T12N, R13E, Umiat Meridian 5. Elevation in feet (indicate KB, DF, etc.) 26' RKB 6. Lease Designation and Serial No. A-028406 8. APl Number i0- 029-20149 9. Unit or Lease Name ADL 47468 10. Well Number Gwydyr Bay South No. 1 11. Field and Pool Wildcat 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. I 15. Water Depth, if offshore I 16. No. of Completions 11/15/1974 3/8/1975 4/18/2002 I NA feet MSLI 1 17'T°tal Depth (MD+TVD)18' Plug Back Depth (MD+TVD)I 19' Directi°nal Survey I 20' Depth where SSSVset12,237' & 12,234' 46' MD/TVD Yes: x No: NA feet MD I21' Thickness °f Permafr°st1000' - 1500' 22. Type Electric or Other Logs Run Resistivity, Acoustic, Density, Neutron, Gamma Ray, Dipmenter, Cement Bond 23. CASING SIZE 30" WT. PER FT. 20" 3 3/8" 154 94.0 GRADE H -40 68 & 72 N-80 9 518" 43.5 & 47 N-80 & S-95 7" liner 26 CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD TOP BOTTOM HOLE SIZE 34' 68' 36" 34' 677' 26" 26' 2,744' 17 1/2" 26' 10,023' 12 1/4" 8,881' 10,306' 8 1/2" 24. Perforations open to Production (MD+TVD of Top and Bottom interval, size and number) 10,076'- 10,108' MD 10,120'- 10,132' MD 10,',)74' - 10,106' TVD, 4 SPF, 1/2" 10,118' - 10,130' TVD, 4 SPF, 112" ~nd CEMENTING RECORD 327 sx Arctic Set 3280 sx Arctic Set 4000 sx Arctic Set AMOUNT PULLED 12' 12' 20' 900 sx Class G 20' 300 sx Class G none 25. TUBING RECORD SIZE DEPTH SET (MD) PACKER SET (MD) none 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 10,180 - 10,194 Sqz w/50 sx Class G 27. Date First Production N/A Date of Test 3/30-3131/75 Hours Tested 13 PRODUCTION TEST IMethod of Operation (Flowing, gas lift, etc.) N/A PRODUCTION FOR TEST PERIOD => OIL-BBL 0 GAS-MCF 0 WATER-BBL 0 CHOKE SIZE I GAS-OIL RATIO NAI NA Flow Tubing casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. Varied Packer 24-HOUR RATE --> 2263 1229 0 34.6 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. None ~ ,,_~_,,,.,..}r/~ Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE 8 2002 Submit in duplicate ExxonMobil Exploration Company Gwydyr Bay South No.1 Well Well Plug and Abandonment Operations Summary All depths measured RKB, unless otherwise noted. 0600, 4/9/02- 1800, 4/9/02 Mobilize equipment to well site- warm-up shack, boiler, tool-shop, generator, heater, well house, tiger tank, and wheel-loader. Place well house over wellhead and apply heat to thaw wellhead and cellar. 0600, 4/10/02 - 0400, 4/11/02 Fire up boiler. Check master, swab, wing, and annulus valves. Verify zero pressure. Diesel confirmed at 8 feet below top of tree. Steam cellar. Verified 13- 3/8" x 20" annulus valve is non-existent. Verify 13-3/8" is cemented into 20" - no slips. Rig up Schlumberger. Rig up Hot-Oil truck for pressure testing. RIH with sinker bar. Tag plug at 2701' RKB. POOH with sinker bar. Test 9-5/8" x 13-3/8" annulus to 1500 psi. Hold 15 minutes. Test is good. Test 9-5/8" casing to 1500 psi. Hold 10 minutes. Test is good. Rig down Hot Oil truck. Run in hole with wireline and perforating guns to 200' RKB. Detonate punch. POOH with wireline and guns. Rig down Schlumberger. 1000, 4/11/02- 1800, 4/11/02 Mobilized additional tank to location. Discuss procedure to flush Arctic-Pack and Diesel with service companies. Arrange for Halliburton pump truck for displacement w/9.4 ppg NaC1. 0600, 4/12/02 - 0200, 4/13/02 R/U Halliburton pump unit. Pressure up on 9-5/8" casing to 1500 psi. No flow up annulus. R/D Halco fi.om 9-5/8". R/U Halco on 9-5/8" x 13-3/8" annulus. Pressure up to 1500 psi. No flow up casing. R/D Halco. Repeat casing and annulus pressure up - one more time. No flow. Schedule Schlumberger to repeat casing perforation. Rig up Schlumberger. R/U Halco. R/U perforation gun. RIH with collar log and perf gun. Apply 500 psi on 9-5/8" casing. Detonate gun. Pressure dropped 100 psi. Pressure up and pump 9.4 ppg NaCI down casing - 25 bbls. Take returns to tiger tank. Approximately 8 bbls of Arctic Pack visually confirmed on returns. Additional 17 bbls of diesel with brine returned to tiger tank. Rig down Halco. POH. R/D Schlumberger. Close in wellhead. ExxonMobil Production Company Gwydyr Bay South No. 1 Well 0900, 4/13/02 - 0600, 4/14/02 Rig up vac-truck to displace diesel w/9.4 ppg NaCI. Fabricate 'poor-boy' bridge plug and well ID plate. Attempt to displace diesel in well w/vac-truck unsuccessful. Order Schlumberger pump truck to displace diesel w/brine. Rig up Schlumberger. Pressure test lines to 1500 psi. Pump 26 bbls 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 30 minutes. Pump 6 bbls 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 14 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 45 minutes. Pump 9 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 12 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 12 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 17 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 19 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 10 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 60 minutes. Pump 10 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop. Wait 90 minutes. Pump 25 bbl 9.4 ppg NaC1 ~ ½ bbl/min until diesel returns stop for 4+ bbls of relatively clean NaC1 returns. 0600, 4/14/02 - 2100, 4/14/02 Displace f'mal trace of diesel out of 9-5/8" casing. Hold and nipple down JSA. Rig down pump truck and clean cellar with vac truck. Release vac truck and pump truck. Nipple down tree and adapter flange. Set 'poor-boy' bridge plug in 9-5/8" casing ~ 210 ft RKB. Nipple up tree. Break off choke from tree. Prepare for cementing. Wait on Halliburton to arrive to location. Rig up Halliburton, water truck, and vac-truck. Pump fresh water flush - 25 bbls ~ 2 bbl/min. Vac- truck returns. Pump 30 bbls Permafrost type C cement, 15ppg ~ 2 bbl/min. Cement in place at 1900 hours. Flush and rinse lines. Rig down Halliburton. Release water truck, vac-truck, and Halliburton. Wait on Cement. 0700, 4/15/02 - 1800, 4/15/02 Re-allocate fluids in tanks on location. Ready to transfer off location for eventual disposal. Rig up Hot-Oil pump truck for testing 9-5/8" casing and 9-5/8"x13-3/8" annulus. Pressure test same to 1500 psi. Test good. Rig down Hot-Oil pump truck and release. Remove well house. Relocate boiler and weld shop to facilitate excavation of soil around wellhead. Nipple down wellhead. Commence excavation for casing cut-off, 20 feet below pad level. 0600, 4/16/02- 1800, 4/16/02 Construct containment berm for fluid storage tank at ExxonMobil pad in Deadhorse. Continue excavation. Remove cellar box. Continue excavation around plugged well. Excavation 70% complete. Arrange for guillotine saw. ExxonMobil Production Company Gwydyr Bay South No. 1 Well 0600, 4/17/02- 1800, 4/17/02 Excavate hole to 22 feet below ground level while thawing rat-hole with steam. Dig access trench for access and egress of personnel. Measure for cut on 30". Cut same to expose 20" ~ 20' below pad level. Knock off cement with excavator, clean out hole. 0600, 4/18/02 - 1800, 4/18/02 Rig up guillotine saw and hot tap 20" pipe. Cut off stub at 20' below pad level. AOGCC representative witnessed and approved. Cement complete across all annuluses on cross-section. Weld on marker plate on 20". Work on freeing rat- hole and rip out wood pilings ~ tundra level. Back fill to point of laying liner. 0600, 4/19/02- 1800, 4/19/02 Back fill. Layout visqueen ~ 10' below pad level. Back fill material from around cellar on top ofvisqueen. Load wellhead and stub in landfill dumpster. Demob shop, boiler, generator, and tanks to Deadhorse. ExxonMobil Production Company Gwydyr Bay South No. 1 Well Owydyr PTD: 174-055 APl: 029-20149 Vertical Hole Spud Date: November 15, 1974 Date Plugged & Abandoned: April 18, 2002 15 ppg, Permafrost Cement in 9-5/8"x13-3/8" annulus and 9-5/8" casing from 204' to surface. 9-5/8" casing perf'd O 200' - 204' w/ 6 spf Figure 1 Bey South Well Final Status No. 1 i Casing~Plug tested to 1500 psi Annulus Plug tested to 1500 psi Elev.(RKB): 26' AMSL All depths shown are RKB measured depths. All casing cut off 20' below pad level (56' RES) 30" O 68' 20" O 677' Brine from approx. 2,000' to 204' in 9-5/8" casing F.O. Collar O 2379' 9-5/8" casing annulus reported cemented from 2798' - 2500' Cement placed inside 9-5/8" casing ~om 2850' - 2700' 13-3/8" ~ 2744' F.O. Collar ~ 2798' Estimated T.O.C. ~ approx. 6400' LEGEND 7" bridge plug set at 9962' +/-, capped with cement Perfs 10076' - 10108' (open) Perfs 10120' - 10132' (open) Perfs 10180' - 10194' (squeezed w/ 50 sx class G) Cement Arctic Pack Brine, 9.4 ppg Mud Liner Hanger ~ 8881' F.O. Collar O 8999' Estimated T.O.C. ~ 9250' 9-5/8" ~ 10025' Cement Retainer ~ approx. 10150' 7" Liner ~ 10306' Cement Plug: 10320' - approx. 10600' TD ~ 12237' MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Cammy O Taylor, ~' DATE: April 18, 2002 Chair Tom Maunder, ~~o~~ P. I. Supervisor ~ __~'~ Chuck Scheve, SUBJECT: Petroleum Inspector THRU: FROM: Surface Abandonment Gwydyr Bay South #! Thursday, April 18,2002: I traveled to the Gwydyr Bay South #1 location to inspect the casing cut off and abandonment of this well. This well has 30", 20" 13 3/8" and 9 5/8" casing strings at surface. All casing strings had been cut off at approximately 20' below Pad level and all were found to be full of cement. A 5/8"thick marker plate was welded to the 30" conductor with the required information bead welded to it. SUMMARY: I inspected the surface cement plug, casing cut off depth, and the P&A marker plate on the Gwydr Bay South #1 well and found all to be in order. Attachments: X Unclassified Classified Unclassified with Document Removed MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO' THRU: Camille O. Taylor, Uo~ Chair Tom Maunder, ~/~h~,'zl~~ P. I. Supervisor r~_\~. ~ ~ FROM: John Crisp, SUBJECT' Petroleum Inspector DATE: April 14, 2002 F'!Ug & Abandon ' ?~. Gwyder Bay South #1 .... PTD :1'74=055 April 14, 2002: I traveled to Exxon / Mobil's Gwyder Bay South #1 to witness placement of cement plug f/204' to surface. The inner string of casing (9 518") was perforated @ 204' to allow circulation of 13 3~8" casing to 9 5~8" casing. 2000' of diesel was to be lubricated out of 9 5/8" casing wi 9.4 ppg. kill wt. fluid before top plug could be placed. Removal of diesel is in accordance w/current AOGCC regulations. I requested to be notified before CBU of kill wt. fluid to observe lubrication method of diesel was a success. I witnessed the 13 318" x 9 5/8" casing cleared w/fresh water before it was followed w/30 bbl. 15.8 ppg. class "G" cement. A poor boy bridge plug was placed @ 206' before cementing began. Lubrication & cementing top plug was successful. Pressure test of top plug was accomplished 04-15-02. I requested Fairweather Engineer ( Jeff Osburn ) to notify AOGCC after casing was cut 20' below pad grade to allow us to witness cement in all casing strings. Summary: I witnessed top cement plug placed on Exxon / Mobil's GBS #1. Attachment: none NON-CONFIDENTIAL P & A GBS.doc ExxonMobil Refining & Supply Company Global Remediation Post Office Box 4552 Houston, Texas 77210-4552 March 15, 2002 Ms. Camille Oechsli Taylor Chair and Commissioner Alaska Oil & Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 E (onMobil Refining & Supply Attn: Mr. Tom Maunder, Senior Petroleum Engineer RE: APPLICATION FOR SUNDRY APPROVAL; PLUG AND ABANDONMENT OF EXXONMOBIL GWYDER BAY SOUTH # 1 WELL Dear Mr. Maunder: On behalf of ExxonMobil Exploration Company, ExxonMobil Refining & Supply Company Global Remediation hereby applies for Sundry Approval to plug and abandon and Gwydyr Bay South #1 Well. The anticipated commencement date of this work is late March. The well will be permanently plugged and abandoned by setting a 150-foot surface cement plug, cutting off all casing strings a minimum of five (5) feet below the adjacent Kuparuk River channel mudline datum, installing a well marker plate on the 20-inch surface casing (identifying well name, spud date, TD and location/Sec, T., R.), and a cleanup of all remaining debris on location. Pertinent information attached to this application includes the following in triplicate: 1. Form 10-403 Application for Sundry Approval 2. A copy of the proposed well plug abandonment program 3. Schematics showing the current (Fig. 1) and proposed (Fig. 2) condition of the wellbore. If you have any questions or require further information, please contact the undersigned at (713) 656- 9179 or Jeff Osborne at (907) 258-3446. Thank you for your attention to this matter. Sin ely, F.E. (Buddy) Hand, Jr. Project Manager, Global Remediation Attachments: cc: Judd Peterson, ADEC Frank Maxwell, ADNR-DMLW Steve Schmitz, ADNR-DOG John Hanes, ExxonMobil Tim Cagle, ExxonMobil Mike Barker, ExxonMobil Cons. Commissio~ STATE OF ALASKA 'z_..,~ ~. ALASKA OIL AND GAS CONSERVATION COMMISSION "~ APPLICATION FOR SUNDRY APPROVAL 1. Type of Request: [x] Abandon [ ] Suspend [X] Plugging [ ] Time Extension [ ] Perforate [ ] Alter Casing [ ] Repair Well [ ] Pull Tubing [ ] Variance [ ] Other [ ] Change Approved Program [ ] Operation Shutdown [ ] Re- Enter Suspended Well [ ] Stimulate 2. Name of Operator 5. Type of well: 6. Datum Elevation (DF or KB) ExxonMobil Exploration Company c/o [ ] Development RKB = 26' ExxonMobil Refining and Supply Co. Global Remediation [X] Exploratory 3. Address [ ] Stratigraphic 7. Unit or Property Name 601 Jefferson Street, Room 1224 [ ] Service ADL 47468 Houston, IX 4. Location of well at surface 8. Well Number 210', 2140'E of SW Corner, Sec 8, T12N, R13E, UM Gwydyr Bay South No. 1 At top of productive interval 9. Permit Number 103' N, 2169' E of SW Corner, Sec 8, T12N, R13E, UM 74-55 At effective depth 10. APl Number Same as surface location 50-029-20149 At total depth 11. Field and Pool 44' N, 2140' E of SW Corner, Sec 8, T12N, R13E, UM Wildcat 12. Present well condition summary Total depth: measured 12237 feet Plugs (measured) true vertical 12234 feet 2700'-2850', BP @9962' w/cement cap, Retainer @ ? 10,150' Effective depth: measured 2700 feet Junk (measured) true vertical 2700 feet None Casing Length Size Cemented MD TVD Structural 68' 30" 327 Sx Arctic Set 68' 68' Conductor 677' 20" 3280 Sx Arctic Set 677' 677' Surface 2744' 13-3/8" 4000 Sx Arctic Set 2744' 2744' Intermediate 10023' 9-5~8" 900 Sx Class G 10023' 10025' Production 300 Sx Class G 10306' 10308' Liner 1425' 7" Perforation depth: measured 10076'-10108', 10120'-10132' True vertical 10078'-10110', 10122'-10134' Tubing (size, grade and measured depth) None Alaska Oil ~"-~ ~ Anch0raqe Packers and 8SSV (type and measured depth) None J3. Attachments [X] Description of 8umma~ Proposal [X] Detailed Operations Program [ ] BOP Sketch J4. Estimated date for commencing operation J5. Status of well classification as: March 2J, 2002 J6. If proposal was verbally approved [ ] Oil [ ] Gas [X] Suspended Name of approver Date Approved 8e~ice Contact Engineer Name/Number: F.E. (Buddy) Hand, Jr.~? 3-656-9 ~ 79 Prepared By Name/Number: Jeff Osborne~907-258-3446 J 7. I hereby c~ that the foregoing is true and correct to the best of my knowledge Title: Project Manager, Global Remediation Date Commission Use Only Conditions of Approval: Noti~ Commission so representative may witness., ~Approval Plug integrity ~ BOP Test ~ Location Clearance ~ Mechanical Integrity Test~ Subsequent form required 10- [~ , ~Approved by order of the Commission ~, ~1 Commissioner Date Form 10-403 Rev. 06/15/88 ORIGINAL Subm cate ExxonMobil Production Company Gwyder Bay South No. 1 North Slope, Alaska Proposed Well Plug Abandonment Program API: 029-20149/PTD: 174-055 Background and Summary Information The Gwyder Bay South No. 1 Well was drilled by Mobil Oil Corporation (now ExxonMobil) during the 1974/1975 winter season in the Kuparuk River Delta on the North Slope of Alaska. The well was drilled to a total depth of 12,237 feet with the deepest casing string set at 10,306 feet. Three separate zones were perforated and tested prior to suspension of the well. After testing, perforations were either squeezed or capped with a bridge plug and cement. Figure 1 shows the current status of the GBS#1 well. Prior to testing operations, a summary testing and well suspension program was submitted to the Alaska Oil and Gas Conservation Commission (AOGCC). This program listed the following zonal isolation and freeze protection operations as the final actions in the program. Run in hole with a 7" "Easy Drill" retainer or bridge plug, set at 9,962+. Cap with cement. 2. Run drill pipe with packer and F.O. Collar opener. Open F.O. Collar at 2,798'. 3. Cement 9-5/8" casing (annulus) from 2,798' to 2,500'. 4. Run temperature log. 5. Cement (inside 9-5/8" casing) with 50 sacks of cement from 2,850' to 2,700'. 6. Wait on cement 12-24 hours. o Run drill pipe with packer and F.O. collar opener. Open F.O. Collar at 2,379' then set packer. 8. Flush and clean 9-5/8" x 13-3/8" annulus with water until mud is displaced and cleans up. . Place "Baroid Arctic Casing Pack" in the annulus of 9-5/8" x 13-3/8". Release packer and imtnediately close F.O. Collar. 10. Displace inside of 9-5/8" casing from 2,350'+ and above with diesel. 11. Place Xmas tree and seal all annulus with valves and bull plugs. While no detailed report of well suspension activities has been located in AOGCC or ExxonMobil well files, the final monthly well report from April 1975 concludes with "...prepared well for temporary abandonment, released rig and suspended operations." A recent well inspection.trip in June 2001 revealed that the well has been suspended as called for in 1975. The current status of the well has diesel present in the 9-5/8 inch casing to surface and Arctic Pack in the 9-5/8 x 13-3/8 inch annulus. The placement of these materials at the surface strongly implies that the downhole suspension/abandonment operations called for in 1975 were also completed. ExxonMobil now desires to complete the final abandonment of the GBS#1 well. This final well abandonment program has been written based on the premise that all required downhole plugs have been set during the conclusion of testing in April 1975. Proposed Final Abandonment Program In order to abandon the well in accordance with current AOGCC regulations, the following tasks must be completed: Circulate out the diesel in the 9-5/8 inch casing and replace same with a kill weight (9.4 ppg) non-freezing fluid. 2. Confirm the presence of a cement plug at 2,700+ feet by sinker bar and wireline. . Set a minimum 150-foot length permafrost cement surface plug in the 9-5/8 inch casing. 4. Set a 150-foot length or as deep as possible if not 150 feet, permafrost cement surface plug in the 9-5/8 x 13-3/8 inch annulus. . Cut off all well casings a minimum five feet below the bottom of the adjacent Kuparuk River channel. This depth is estimated to be 20 feet below and pad level. . Install a well marker plate on the 20 inch surface casing identifying the well name, spud date, TD, and location (Sec, T, R). 7. Clean up all remaining debris on location. . Return to the site the following summer with an AOGCC inspector and possibly other State agency representatives to perform a final inspection and location clearance. Figure 2 shows the proposed final status of the GBS #1 well. Permitting The aforementioned P&A program will require the following permit applications to be filed: · North Slope Borough Administrative Approval · Application for Sundry Approvals (AOGCC) Land Use Permit (ADNR) · Temporary Water Use Permit (ADNR) · Existing Lease Operations Permit These permit applications will be submitted to the respective agencies prior to the scheduled work commencement in late March or early April, 2002. Detailed Operations Program 1. Construct approximately 2.5 miles of ice road for access to the site. , Mobilize all required personnel and equipment to the location by truck. Personnel will be required to comply with ExxonMobil standard health, safety and environmental policies including passing a drug test since January 1, 2002. All equipment mobilized to the site will be in proper working order and equipped with secondary drip pans to prevent spills. 3. Recheck wellhead and annulus pressures to confirm that the well is dead. , Rig up wireline unit with wellhead packoff, sinker bar and 5 feet of 6 shot per foot 2- 1/2 inch perf guns with 60 degree phasing. Use perforating charges that will not penetrate 13-3/8 inch casing. Run in hole and confirm cement plug at 2,700+ feet. Pull up to 200 feet. Remainder of program assumes successful confirmation of cement plug at 2,700+ feet. o Pressure test 20 x 13-3/8 inch annulus to 1000 psi. Pressure test 13-3/8 x 9-5/8 inch annulus to 1500 psi. Pressure test 9-5/8 inch casing to 1500 psi. Monitor pressures on adjacent annulus or casing during pressure tests. Remainder of program assumes successful testing of the annuli and casing as described above. , Perforate 9-5/8 inch casing from 200 to 205 feet RKB with 2-1/2" gun, 5 spf and 60 degree phasing. Rig down wireline. . Attempt to circulate down 9-5/8 inch casing and up 9-5/8 x 13-3/8 inch annulus and vice versa, if necessary. ~fabi~ ~6 ~i~e~I~t~i ~P s~ep 8~ 8. Run into the well with 1 inch tubing to 220+ feet RKB. o Displace the diesel in the 9-5/8 inch casing by lubricating 9.4 ppg NaC1 brine into the well and allowing the brine to swap with the diesel. Recover diesel in a vac truck and transport to Deadhorse for recycle. 10. If unable to circulate in Step 7, rig up steam line on 1 inch tubing and heat wellbore. Use packoff at the surface and take steam returns out 9-5/8 wing valve with hard line to circulating tank in case steam in wellbore unloads fluid from well. 11. After heating, rig up pumping unit and attempt to circulate down 9-5/8 inch casing taking returns up 13-3/8 x 9-5/8 inch annulus. If unable to circulate, swap lines and attempt to circulate down annulus, taking returns from casing. If still unable to 12. 13. 14. After 13-3/8 x 9-5/8 inch annulus has been cleaned of Arctic Pack, RIH with 1 inch tubing and spot a high vis non-freezing saltwater gel pill from 220 feet to 200 feet RKB in 9-5/8 inch casing. POOH with 1 inch tubing. Tie in cementing lines to both annulus valves on wellhead. Mix and pump 15 ppg permafrost cement down 13-3/8 x 9-5/8 inch annulus through perforations at 200 to 205 feet RKB taking returns up 9-5/8 inch casing. Do not exceed 1500 psi pumping pressure. Quit pumping cement when surface returns are present. Shut in annulus and 9-5/8 inch casing. Break lines and clean up cementing unit. WOC. Rig up pumping trait and pressure test 9-5/8 inch casing and 13-3/8 x 9-5/8 inch annulus to 1500 psi. Bleed off pressure, open annulus and casing valves to check for cement at surface. 15. Excavate cellar to 22 feet below pad level (38 feet RKB). 16. 17. 18. 19. 20. 21. 22. Cut off 30 inch casing at 20 feet below pad level (36 feet RKB) and remove same. Break away cement between 30 inch and 20 inch casing with excavator. Hot tap 20 inch casing to confirm that the 20 x 13-3/8 inch annulus is cemented to surface. If annulus is not cemented, the 20 inch casing could be in compression. Check for hydrocarbon vapors behind 20 inch casing, set up nitrogen purge, if necessary. Cut 20, 13-3/8, and 9-5/8 inch casings with a guilloutine saw at 20 feet below pad level (36 feet RKB). Pound wedges into 20 inch casing cut as necessary to provide standoff for reciprocating saw blade. Leave uppermost wellhead flange and master valve bolted on wellhead during cutting operations to prevent the 9-5/8 casing from launching out of the wellhead when cut. Maintain a safety line on wellhead to prevent wellhead from falling into excavation. Inspect cement inside all annuli and 9-5/8 inch casing. Perform top job as necessary. Allow AOGCC inspector to see surface cement job. Install well marker plate on 20 inch surface casing identifying the well name, spud date, TD, and location (Sec, T, R). Refill excavation. Pick up any remaining debris on location and demob operations. This completes the P&A procedure. !i' ~i RIH with one 1 inch tubing to 215 feet RKB (10 feet below 9-5/8 inch casing perforations). Rig end of tubing with 8 inch O.D. circular steel plate to serve as a base for the cement plug. Mix and pump a permafrost cement plug from 215 feet to surface in the 9-5/8 inch casing. Hang 1 inch tubing off and leave same full of cement and cement same in hole. 23. Excavate cellar to 22 feet below pad level (38 feet RKB). 24. Hot tap 20 inch casing at 2 feet above the excavation floor to confirm that the 20 x 13- 3/8 inch annulus is cemented to surface. Drill through cement sheath and penetrate 13- 3/8 inch casing. Drain any liquids in 20 x 13-3/8 and 13-3/8 x 9-5/8 inch casing annuli. 25. Cut off 20, 13-3/8, 9-5/8 inch casings to 5 feet above the excavation floor with a guilloutine saw. Leave uppermost wellhead flange and master valve securely bolted on wellhead during cutting operations to prevent the 9-5/8 casing from launching out of the wellhead when cut. Maintain a safety line on wellhead to prevent wellhead from falling into excavation. 26. Inspect all annuli for contents. Shove 3/4-inch pipe into 13-3/8 x 9-5/8 inch annulus to 185 feet RKB or as far as possible, circulate annulus with diesel then brine to clean up. Rig up flow nipple on casing prior to circulating and recover fluids with vac unit. 27. Mix and set a permafrost cement plug in the 13-3/8 x 9-5/8 inch annulus. Leave 3/4- inch pipe full of cement and cemented in annulus. Give AOGCC inspector an oppommity to witness surface cement plug. Repeat annulus cementing procedure for 20 x 13-3/8 inch annulus, if necessary. 28. Recut casing strings at 36 feet RKB (20 feet below pad level). Proceed to Step 19. Waste Management Class II wastes will be recovered during circulating and cementing operations. Clean diesel will be recycled for heating fuel or freeze protection in Prudhoe Bay/Deadhorse. Class I waste will be generated from cleanup after cementing operations. These wastes will be injected down the Class I well at Pad 3 in Prudhoe Bay. Reporting At the conclusion of well P&A operations, a Report of Sundry Well Operations, Form 10-404, will be filed with the Commission showing the final P&A status of the well. Figure 1 Gwydyr Bay South No. 1 Current Status, June 2001 PTD: 174-055 APl: 029-20149 Vertical Hole Spud Date: November 15, 1974 Date Suspended or Shut-in: April 16, 1975 Elev.(RKB): 26' AMSL All depths shown are RKB measured depths. 30" @ 68' 20" 0 677' Diesel from approx. 2,000' to surface in 9-5/8" casing F.O. Collar @ 2379' 9-5/8" casing annulus reported cemented from 2798' - 2500' Cement placed inside 9-5/8" casing from 2850'- 2700' 13-3/8" @ 2744' F.O. Collar © 2798' Estimated T.O.C. @ approx. 6400' LEGEND Cement Arctic Pack ] Diesel Mud 7" bridge plug set at 9962' +/-, capped with cement Perfs 10076' - 10108' (open) Perfs 10120' - 10132' (open) Perfs 10180' - 10194' (squeezed w/ 50 sx class G) Liner Hanger @ 8881' F.O. Collar @ 8999' Estimated T.O.C. @ 9250' 9-5/8" ~ 10025' Cement Retainer @ approx. 10150' 7" Liner @ 10306' Cement Plug: 10520' - approx. 10600' TD @ 12237' Figure 2 Gwydyr Bay South No. Proposed Final Status PTD: 174-055 APl: 029-20149 Vertical Hole Spud Date: November 15, 1974 Date Suspended or Shut-in: April 16, 1975 15 ppg, Permafrost Cement in 9-5/8"x13-3/8" annulus and 9-5/8" casing from 204' to surface. 9-5/8" casing perf'd © 200' - 204' w/ 6 spf i Casing~_~lug tested to 1500 psi Annulus Plug tested to 1500 psi Annulus Plug tested to 1000 psi Elev.(RKB): 26' AMSL All depths shown are RKB measured depths. All casing cut off 20' below pad level (36' RKB) 30" @ 68' 20" @ 677' Brine from approx. 2,000' to 204' in 9-5/8" casing F.O. Collar @ 2379' 9-5/8" casing annulus reported cemented from 2798'- 2500' Cement placed inside 9-5/8" casing from 2850'- 2700' 13-3/8" @ 2744' F.O. Collar © 2798' Estimated T.O.C. @ approx. 6400' LEGEND 7" bridge plug set at 9962' +/-, capped with cement Perfs 10076' - 10108' (open) Perfs 10120' - 10132' (open) Perfs 10180' - 10194' (squeezed w/ 50 sx class G) Cement Arctic Pack Brine, 9.4 ppg Mud Liner Hanger @ 8881' F.O. Collar @ 8999' Estimated T.O.C. @ 9250' 9-5/8" @ 10023' Cement Retainer @ approx. 10150' 7" Liner @ 10306' Cement Plug: 10320' - approx. 10600' TI3 @ 12237' ExxonMobil Production Company Gwyder Bay South No. 1 North Slope, Alaska Proposed .Well Plug Abandonment Program API. 029-20149/PTD: 174-055 Background and Summary Information /// The Gwyder Bay South No. 1 Well was drilled by Mobil Oil CorpO.~ion (now ExxonMobil) during the 1974/1975 winter season in the Kuparuk River Delta o~/the North Slope of Alaska. The well was drilled to a total depth of 12,237 feet with the dee~6st casing string set at 10,306 feet· Three separate zones were perforated and tested prior t~/susPension of the well. After testing, perforations were either squeezed or capped with a b/~dge plug and cement. Figure 1 shoWs the current status of the GBS#1 well. Prior to testing operations, a summary testing and well sfspension' program w..as s.ubm~tted to !he Alaska Oil and Gas Conservation Commission (AO~d2C). This .pro_gram hsted the following zonal isolation and freeze protection operations ad, final actions in the Pr°gram. 1. Run in hole with a 7" "Easy Drill" ~r~ainer or bridge plug, set at 9,962+. Cap with cement. ~' 8' 2. Run drill pipe with packer nude./Collar opener._ ~Open__ F.O. Collar at 2,79. 3· Cement 9-5/8" casing (ann~s) from 2,798' to 2,500'. 4. Run temperature log.~,/~ 5. Cement(inside 9-5/8/7 casing) with 50 sacks of cement from 2,850' to 2,700'. 6. Wait on cement ¢-24 hours. ? p¢TM 7. Run drill pi ith packer and F.O. collar opener. Open F.O. Collar at 2,379' then set packer. ~/~ 8. Flush and/clean 9-5/8" x 13-3/8" annulus with water until mud is displaced and cleans up. //' ,, 9 Plac 'Baroid Arctic Casin Pack" in the annulus of 9-5/8" x 13-3/8 Release packer · Pa~l~rn~ediately close F.O.gCollar. ' 10.//Displace inside of 9-5/8" casing from 2,350+' and above with diesel. 11/ Place Xmas tree and seal all annulus with valves and bull plugs. While no detailed report of well suspension activities has been located in/~OGCC or ExxonMobil well files, the final monthly well report from April 1975.jcfooncludes with " t)ret)ared well for temporary abandonment, released rig and suspended opera~tions.'' A recent v ;iiins' pection trip in Jun-e 200-1 revealed that the well has been suspended,~ .called for in 1975· The current status of the well has diesel present in the 9-5/8 inch casing, to surface and Arctic Pack in the 9-5/8 x 13-3/8 inch annulus. The placement of these matefial~ at the surface strongly implies that the downhole suspension/abandonment operations called for in 1975 were also completed. ExxonMobil now desires to complete the final aband°hment of the GBS#1 well· This final well abandonment program has been written based on/the_ premise that all required · · downhole plugs have been set during the conclusion of testing mApnl 1975. Proposed Final Abandonment Program / In order to abandon the well in accordance with current AOGCC regulations, the following tasks / / must be completed: //· 1. Circulate out the diesel in the 9-5/8 inch casing and replace same with a kill weight (9.4 ppg) non-freezing fluid. / /// 2. Confirm the presence of a cement p)ng at 2,700+ feet by sinker bar and wireline. 3. Set a minimum 150-foot length' permafrost cement surface plug in the 9-5/8 inch / casing. / / / // 4. Set a 150-foot length or as/deep as possible if not 150 feet, permafrost cement surface plug in the 9-5/8 x 13-3/8/inch annulus. / / / 5. Cut off all well casi~ngs a minimum five feet below the bottom of the adjacent Kupamk River channel. This~ depth is estimated to be 20 feet below and pad level. / / / 6. Install a well marker plate on the 20 inch surface casing identifying the well name, spud date, TD, and/l/ocation (Sec, T, R). 7. Clean up ~li remaining debris on location. 8. Return/(O the site the following summer with an AOGCC inspector and possibly other Stat~igency representatives to perform a final inspection and location clearance. ,, Figure 2 shows the proposed final status of the GBS #1 well. Permitfl/ng / T~f°rementioned P&A program will require the following permit applications to be filed: / · North Slope Borough Administrative Approval / · Application for Sundry Approvals (AOGCC) · Land Use Permit (ADNR) · Temporary Water Use Permit (ADNR) · Existing Lease Operations Permit These permit applications will be submitted to the respective agencies prior to the scheduled work commencement in late March or early April, 2002. Detailed Operations Program 1. Construct approximately 2.5 miles of ice road for access to the site. ,/ 2. Mobilize all required personnel and equipment to the location by truck. Personnel will be required to comply with ExxonMobil standard health, safety and environmental policies including passing a drug test since January 1, 2002. All equipment mobilized to the site will be in proper working order and equipped with secondary drip pans to prevent spills. · 3. Recheck wellhead and annulus pressures to confirm that the well is dead. /' / 4. Run into the well with 1 inch tubing·to 150 feet below pad level (166 feet RKB). / , / 5. Displace the diesel in the 9-5/~ inch casing by lubricating 9.4 ppg NaC1 brine into the well and allowing the brine to'swap with the diesel. Recover diesel in a vac truck and transport to Deadhorse for r¢6ycle. POOH with 1-inch tubing. / / 6. PreSsure test 20 x 13-3(ginch annulus to 1000 psi. Pressure test 13-3/8 x 9-5/8 inch annulus to 1500 psi. Pressure test 9-5/8 inch casing to 1500 psi. Monitor pressures on adjacent annulus oF~casing during pressure tests. Remainder of program assumes successful testing 0fthe annuli and casing as described above. / / 7. Rig up wirelin!unit with wellhead packoff, sinker bar and 4 feet of 6 shot per foot perf guns with 60fdegree phasing. Use perforating charges that will not penetrate 13-3/8 inch casing/Run in hole and confirm cement plug at 2,700+ feet. Pull up and perforate 9-5/8 inch/casing from 200 to 204 feet RKB. Rig down wireline. / / 8. RIH w)(h steam hose to 220+ feet RKB and heat wellbore. / :Rigftp pumping unit and attempt to circulate down 9-5/8 inch casing taking returns up 13f3/8 x 9-5/8 inch annulus. If unable to circulate, swap lines and attempt to circulate d~6wn annulus, taking returns from casing, .If ~able to Circulate Arctic Pack, proceed tb step20~ After 13-3/8 x 9-5/8 inch annulus has been cleaned of Arctic Pack, RIH with 1 inch tubing and spot a high vis non-freezing saltwater gel pill from 220 feet to 200 feet RKB in 9-5/8 inch casing. POOH with 1 inch tubing. 11. Tie in cementing lines to both annulus valves on wellhead. Mix and pump 15 ppg permafrost cement down 13-3/8 x 9-5/8 inch annulus through perforations at 200 to 204 feet RKB taking returns up 9-5/8 inch casing. Do not exceed 1500 psi pumping pressure. Quit pumping cement when surface returns are present. Shut in annulus and 9-5/8 inch casing. Break lines and clean up cementing unit. WOC. 12. Rig up pumping unit and pressure test 9-5/8 inch casing and 13-3/8 x 9-5/8 inch annulus to 1500 psi. Bleed off pressure, open annulus and casing valves to check for cement at surface. 0~ ~C~ [,~[~ 13. Excavate cellar to 22 feet below pad level (38 feet RKB). 'k 14. Cut off 30 inch casing at 20 feet below pad level (36 feet RKB) and remove same. Break away cement between 30 inch and 20 inch casing With excavator. 15. Hot tap 20 inch casing to confirm that the 20 x ~13-3/8 inch annulus is cemented to surface. If annulus is not cemented, the 20 inch casing could be in compression. Check for hydrocarbon vapors behind 20 inch casing, ~set up nitrogen purge, if necessary. 16. Cut 20, 13-3/8, and 9-5/8 inch casings with a guilloutine saw at 20 feet below pad level (36 feet RKB). Pound wedges into 20 inch casing cut as necessary to provide standoff for reciprocating saw blade. Leave uppermost wellhead flange and master valve bolted on wellhead during cutting operations to prevent the 9-5/8 casing from launching out of the wellhead when cut. Maintain a safety line on wellhead to prevent wellhead from falling into excavation. .' // / ,/ 17. Inspect cement inside all almli and 9-5/8 inch casing. Perform top job as necessary. Allow AOGCC inspector to'see surface cement job. / / 18. Install well marker platg~'$n 20 inch surface casing identifying the well name, spud date, TD, and location (Se¢,/T, R). Refill excavation. // 19. Pick up any remai/mng debris on location and demob operations. Completes procedure. SUP StePs ~0 th~U~ 26: ,/ / 20. RIH with on~ 1 inch tubing to 214 feet RKB (10 feet below 9-5/8 inch casing perforation~. Rig end of tubing with 8 inch O.D. circular steel plate to serve as a base for the cement plug. Mix and pump a permafrost cement plug from 214 feet to surface in the 9/5/8 inch casing. Hang 1 inch tubing off and leave same full of cement and cement/same in hole. / /' 21. Ex/ehvate cellar to 22 feet below pad level (38 feet RKB). / 22. fI~iot tap 20 inch casing at 2 feet above the excavation floor to confirm that the 20 x 13- ~ 3/8 inch almulus is cemented to surface. Drill through cement sheath and penetrate 13- 3/8 inch casing. Drain any liquids in 20 x 13-3/8 and 13-3/8 x 9-5/8 inch casing annuli. 23. Cut off 20, 13-3/8, 9-5/8 inch casings to 5 feet above the excavatiofffloor with a guilloutine saw. Leave uppermost wellhead flange and master valve Securely bolted on wellhead during cutting operations to prevent the 9-5/8 casing from launching out of the wellhead when cut. Maintain a safety line on wellhead to.'prevent~~,_~a~ from falling into excavation. · 24. Inspect all annuli for contents. Shove 3/4-inch pipe into'13-3/8 x 9-5/8 inch annulus to 185 feet RKB or as far as possible, circulate annulus"With diesel then brine to clean up. Rig up flow nipple on casing prior to circulating and recover fluids with vac unit. 25. Mix and set a permafrost cement plug in thei3-3/8 x 9-5/8 inch annulus. Leave 3/4- inch pipe full of cement and cemented~ in annulus. Give AOGCC inspector an opportunity to witness surface cement, plug. Repeat annulus cementing procedure for 20 x 13-3/8 inch annulus, if necess ~a~.~ 26. Recut casing strings at 36 feet ~ (20 feet below pad level). Proceed to Step 18. Waste Management .1, Class II wastes will be recovered during circulating and cementing operations. Clean diesel will be recycled for heating fuel o~ freeze protection in Pmdhoe Bay/Deadhorse. Class I waste will be g~erated from cleanup after cementing operations. These wastes will be injected down the C19gs I well at Pad 3 in Pmdhoe Bay. Reporting At the conc/l~usion of well P&A operations, a Report of Sundry Well Operations, Form 10-404, ~16d with the Commission showing the final P&A status of the well. I::xxonlVIODil ~wyaer c~ay ~oum Subject: ExxonMobil Gwyder Bay South #1 Date: Mon, 8 Oct 2001 19:31:26 -0500 From: "Jesse Mohrbacher" <jesse@fairweather.com> To: "Tom Maunder" <tom_maunder@admin.state.ak. us> CC: "Al Robb II!" <al.j.robb@exxonmobil.com>, "Duane Vaagen" <duane@fairweather.com> Hello Tom, I am writing on behalf of Al Robb with ExxonMobil. He mentioned that you had called him regarding the referenced well status and P&A plans. Last June, I travelled out to the location and inspected the well with Alan Arima of SwacoDSR. We first checked for pressure on the casing and annuli which were all dead. The 9-5~8" casing had diesel to within 10' of surface and the 13-3/8" x 9-5/8" annulus had been freeze protected with Arctic Pack which was visible behind the annulus valve gate. It was the type that looked like chocolate mouse and was prepared with diesel, not crude oil. We are currently wdting a P&A program for ExxonMobil's review and approval. Subsequently, you will be provided an Application for Sundry Approval to P&A the well. For now, we can be sure that the welt is secure. Please contact me if you have any questions or comments on this well. Regards, Jesse Mohrbacher Fairweather E&P Services, Inc. 650 N. Sam Houston Pkwy E., Suite 505 Houston, TX 77060 281-445-5711 281-445-3388 fax 1 of 1 10/9/01 7:27 AM Re: ~wyc~yr ~ay =5outn Subject: Re: Gwydyr Bay South #I-50-029-20149 Date: Mon, 8 Oct 2001 09:35:53 -0500 From: al.j.robb@exxonmobil.com To: Tom Maunder <tom_maunder@admin.state.ak.us> CC: mcmains@admin.state.ak.us, D._M._Barker/dmbarke/Americas/Exxon@exxonmobil.com TOM: I also enjoyed our visit at the GWPC Meeting. Our plan was/is to plug that well this winter sometime, i'm currently traveling (on my way from Houston up to the Slope) and will have to check the letter we sent in our files, but our intent was to propose a May 1, 2002 date of completion. We have asked Fairweather E&P Services to provide a proposal to P&A the well but have yet to see the plan/cost estimate. I will follow up with them this week and I will keep you posted in the coming weeks as plans progress. Regards, AL Albert J. Robb III Major Projects Manager ExxonMobil Refining & Supply Company Global Remediation, Major Projects (Upstream / Coal & Minerals / Corporate) 601 Jefferson Street, KT 1247, Houston, Texas 77002 USA Telephone: (713) 656-9182 Fax: (713) 656-9191 E-mail: al.j.robb@exxonmobil.com Tom Maunder <tom_maunder@admin.st ate.ak, us> cc: Subject: 10/06/01 09:58 AM To: Al Robb <al..j_robb@email.mobil.com> Steve McMains <steve_mcmains@admin.state.ak.us> Gwydyr Bay South #1--50-029-20149 Al, Nice to meet you in Reno. Sorry Long Beach has been canceled. I was looking through some items here and found your letter (1/30/01) of early this year regarding the subject well. In the letter, it is indicated that the plan is to P&A the well before May 1,2001. That is this season. Is that still the plan?? Look forward to hearing from you. Tom Maunder (See attached file: tom_maunder, vcf) 1 of 2 10/9/01 7:24 AM ExxonMobil Refining and Supply Compar.~ Downstream SH&E - Environmental Remediation 601 Jefferson Houston TX 77002 Al J. Robb III Major Projects Manager Major Projects Upstream / Coal & Minerals/Corporate Room 1247 Telephone: 713-656-9182 Facsimile: 713-656-9191 E-maih AL_J_ROBB@email.mobil.com January 30, 2001 Alaska Oil & Gas Conservation Commission 3301 Porcupine Drive Anchorage, Alaska 99501-3192 Attn.: Steve McMains E x, onMobil Refining & Supply WELL STATUS GWYDYR BAY SOUTH #1 APl #50-029-20149 Dear Mr. McMains: On behalf of ExxonMobil Exploration Company, this letter is in response to your request for an update on the status and future utility of the Gwydyr Bay South #1 well, APl #50-029- 20149. This well was spudded in November 1974 and suspended in April 1975. It is our understanding that yOur records indicate a "shut-in" status for this well. Our review of available records suggest there may be open perforations between 10,076'-10,108' and between 10,120' - 10,132' and support the "shut-in" status. ExxonMobil personnel visually inspected this well and confirmed the integrity of the well head on August 29, 2000. In addition, we have evaluated the future utility of this well and have decided to plug and abandon the well no later than May 1, 2002. Should you have any questions concerning this response, please contact me at the letterhead address/phone number or John Hanes with ExxonMobil Exploration Company at (281) 423-5048. Thank you for your time. Sincerel , ~ ~e~,,~~Alb t"'J¢. Robb Ill Cc: John Hanes, EMEC- HoUston Mike Barker, EMPC - Anchorage Re: Gwyder Bay South 1 • • Subject: Re: Gwyder Bay South 1 Date: Mon, 04 Oct 1999 10:37:37 -0800 ` 4 '. © 5''S From: Gary Schultz <garys @dnr.state.ak.us> To: "Peterson, Judd" <RJPeters @envircon.state.ak.us> CC: "'Diana Evans @urscorp.com"' < Diana Evans @urscorp.com> , "'Robb, Al J "' <alj_robb @email.mobil.com> , "'Wondzell, Blair'" < Blair _Wondzell @admin.state.ak.us> , "'Schultz, Gary "' <Gary_Schultz @dnr.state.ak.us> I checked my field notes from this visit also. My notes state that we did find some diesel based drilling mud in the reserve pit. Shell shaker waste was present on the edge of the pit. Diesel contamination was present next to a fuel tank liner next to the well marker. The fuel pit for the pad is located next to the reserve pit (on the east side). The bottom is orange stained, has black substrate that produces a sheen when disturbed. Thus, the fuel pit is probably contaminated with diesel. The fuel pit has eroded into the reserve pit through thermokarst action. A broken battery was present about 20 yards northeast of the well head. Drilling mud products were also present north of the well marker. So, it seems that this site needs some work. Gary "Peterson, Judd" wrote: APR ZQ1t't > Dear Al and Diana > I had a meeting with AOGCC yesterday to discuss sites like Gwydyr Bay South > that have not been P&Aed and still have open reserve pits. In accordance > with AGOCC regulations, when a well is P&Aed the reserve pit must be > backfilled. This regulatory standard has been in effect since 1980. ADEC > closure regulations do not specifically require backfilling of open pits. > However, ADEC is not going to issue final closure approval for reserve pits > that have not met specific regulatory closure requirements of other > agencies. This would be very confusing for everybody as to the status of > the reserve pit. One agency says it's approved for final closure and > another says do additional work. > • Specifically at this site, the well has never been P&Aed. It's status is > "shut in ". The above grade reserve pit is open and filled with water. > Seasonal ground ice melting has greatly deepened the pit so it essentially a > below grade pit now. I suspect that the muds are diesel based (because of > the date of drilling). However, the bottom of the pit has dropped so much > and the water is so deep that the muds could not be tested for sheen. > For this pit to receive final closure approval by ADEC, it must meet the > closure requirements of 18 AAC 60.440 and the closure requirements of AOGCC > regulations. There is a large stockpile of gravel at that site which can be > used as backfill. The backfilled pit should be capped with overburden or > other fine grained material that will establish a thermal stable cap over > the pit that does not impound water. This same closure standard will apply > to all other reserve pits for wells that have not been P&Aed in accordance > with AOGCC regulations. Exceptions would be site specific such as pits > where all drilling waste has been removed, a closure plan proposes the > removal of all drilling waste or the P&A was completed, inspected and > approved by AOGCC prior to the 1980 AOGCC regulations that require > backfilling. > • Regards, > Judd Peterson Original Message From: Diana_Evans @urscorp.com > tmailto:Diana Evans @urscorp.com] Sent: Monday, September 27, 1999 1:28 PM > To: Peterson, Judd > Subject: Gwyder Bay South 1 1 of 2 10/4/99 11:38 AM Re: Gwyder Bay South 1 • • > > Judd, > Thanks for the email this a.m. Now that you're back in the > office, could you > check your field notes for the Gwyder Bay South site that > you visited with Mobil > in 1998 and email back what you found? Thanks!!! > 2 of 2 10/4/99 11:38 AM • Reserve Pit Close Outs Subject: Reserve Pit Close Outs Date: Thu, 30 Sep 1999 10:02:29 -0800 From: "Steve Schmitz" <Steve_Schmitz @dnr.state.ak.us> To: "William Vandyke @dnr. state. ak. us" < William _Vandyke @dnr.state.ak.us> , "Blair E Wondzell" <blair wondzell @admin.state.ak.us> Blair Bill asked me to let you know what we have required for reserve pit closures. ARCO has "closed" a couple of reserve pits in the EOA. These closures were associated with the Grind and Inject facility at DS 4 or at DS 3 when they did the Regional Hole east of DS 16. Typically, they are required to remove the muds and cuttings from the pit down to a level where testing indicates that there is little or no contamination left. The bottom is then covered with gravel to a level that it will not cause ponding and culverts placed to drain off snow melt. Some locations are experimenting with seeding and different insulation techniques to prevent thermocarsting from the gravel cap. One technique they tried last winter was to take pallets and other wood debris that would normally be recycled south or be sent to the landfill, and run it through a chipper, bed the pit with the mulch to a point, and then cap it with gravel. No reports on the results yet. The facilities in the EOA that have been done so far are functioning pads, and the long term disposition of the pad has not been determined. It may well be that it is determined that the rest of the gravel needs to be removed at the end of the field life, they may be contoured to create some sort of habitat (filling or not filling in the reserve pits), or they may be kept as infrastructure or tourist attractions. Time will tell. We went through a coordinated review with DEC and DO &G issuing a permit. DEC established clean up levels and Lands put conditions on the approval that DO &G issued. Generally, Lands wants higher clean up levels than DEC, but for now has settled for what DEC has determined and wants copies of any reports that are prepared for DEC. There have bee freeze - back -in -place closures at Kuparuk and Milne and some of the explora ion wells. The exploration sites required liners over the top and organic caps with thermistor strings, seeding and multi year monitoring. "op O -SO � The sites in Kuparuk and Milne were basically just capped and have monitoring programs. They are newer pads that used water based muds and cuttings, but there were sampling programs that verified there wasn't some kind of environmental hazard. Again, who knows what will happen long term to these pads. One thing that killed the Regional Hole concept was that BPXA did not feel comfortable that they would not some day be required to dig them up and dispose of them again. Being on the surface made them accessible to do this and injecting Muds and Cuttings was viewed as more permanent. Hence the G and I facility. Some flare pits have been close out as well. BP did a couple of these to compensate for predicted damage that flare testing for GHX 2 might do. In those cases, they tested the impounded waters of unused flare pits and removed the gravel berm down to 6" above tundra. They leave the 6" to account for settling and thermocarsting. The gravel was tested and reused on roads and pads. Some seeding was done. I don't recall which pads they were right off, but I think they were at B,D,F and H pads. 1 of 2 9/30/99 11:22 AM r - -Reserve Pit Close Outs • • About 9 years ago, an oiled duck was found in one of ARCOs EOA flare /relief pits, and knock out tanks were installed in most of the pits. The pits were also cleaned up within the berms. You might want to contact Gary Schultz 451 -2732 or Leon Lynch at 451 -2724 for their input, and if you want to contact DEC, I can find out who you should talk to. Need more'? Steve 2 of 2 9/30/99 11:22 AM RE: Gwyder Bay South 1 4-9 Subject: RE: Gwyder Bay South 1 _. y „ 055- Date: Wed, 29 Sep 1999 14:17:18 -0800 From: "Peterson, Judd" <RJPeters @envircon.state.ak.us> To: "'Diana Evans @urscorp.com "' < Diana Evans @urscorp.com> , "'Robb, Al J'" <al_j_robb @email.mobil.com> CC: "'Wondzell, Blair ' < Blair Wondzell @admin.state.ak.us> , "'Schultz, Gary ' <Gary_Schultz @dnr.state.ak.us> , "Peterson, Judd" <RJPeters @envircon.state.ak.us> Dear Al and Diana I had a meeting with AOGCC yesterday to discuss sites like Gwydyr Bay South that have not been P&Aed and still have open reserve pits. In accordance with AGOCC regulations, when a well is P&Aed the reserve pit must be backfilled. This regulatory standard has been in effect since 1980. ADEC closure regulations do not specifically require backfilling of open pits. However, ADEC is not going to issue final closure approval for reserve pits that have not met specific regulatory closure requirements of other agencies. This would be very confusing for everybody as to the status of the reserve pit. One agency says it's approved for final closure and another says do additional work. Specifically at this site, the well has never been P&Aed. It's status is "shut in ". The above grade reserve pit is open and filled with water. Seasonal ground ice melting has greatly deepened the pit so it essentially a below grade pit now. I suspect that the muds are diesel based (because of the date of drilling). However, the bottom of the pit has dropped so much and the water is so deep that the muds could not be tested for sheen. For this pit to receive final closure approval by ADEC, it must meet the closure requirements of 18 AAC 60.440 and the closure requirements of AOGCC regulations. There is a large stockpile of gravel at that site which can be used as backfill. The backfilled pit should be capped with overburden or other fine grained material that will establish a thermal stable cap over the pit that does not impound water. This same closure standard will apply to all other reserve pits for wells that have not been P&Aed in accordance with AOGCC regulations. Exceptions would be site specific such as pits where all drilling waste has been removed, a closure plan proposes the removal of all drilling waste or the P&A was completed, inspected and approved by AOGCC prior to the 1980 AOGCC regulations that require backfilling. Regards, Judd Peterson Original Message From: Diana_Evans @urscorp.com [mailto:Diana Evans @urscorp.com] Sent: Monday, September 27, 1999 1:28 PM To: Peterson, Judd Subject: Gwyder Bay South 1 Judd, Thanks for the email this a.m. Now that you're back in the office, could you check your field notes for the Gwyder Bay South site that you visited with Mobil in 1998 and email back what you found? Thanks!!! 1 of 1 9/29/99 2:49 PM Mobil Oil Corporation P.O. BOX 900 ~-~ ¢.~.. DALLAS, TEXAS 75221 ALASKA EXPLORATION September 24, 1984 Mr. Bill Van Allen Alaska Oil and Gas Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Bi 1 l' Enclosed are the rewritten core descriptions for the Mobil Gwydyr Bay South #1 well (Sec. 8, 12N, 13E) that you requested for your files. The cores (1-12) sampled various intervals from 8,000' to 12,237' Please let us know if we can help you any further. PB/jg Enclosure cc' A. R. Mo§ck Very truly yours, Philip Braithwaite Geological Manager, Alaska RECEIVED OCl-O 1 1~]~ Alask~ Oil & Gas Oons. oommiss[o~ Anchorage Mobil Oil Corporotion P.O, BOX 900 DALLAS, TEXAS 75221 ALASKA EXPLORATION September 13, 1984 Mr. Bill Van Allen Alaska Oil and Gas Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Bill- In reference to your call yesterday on the core descriptions from the Mobil Gwydyr Bay South #1 well, we were able to locate the geologist's notes in our files. However, they are very messy and should be retyped before we send them to you for your files. Consequently, we will retype them and forward them to you in about a week or ten days. PB/jg cc' A. R. Mogck Very truly yours, P. Braithwaite Geological Manager, Alaska RECEIVED Alaska Oil & Gas Cons, commission Anchorage July 18, 1979 Cities Service Cc~, Expl. & Prod. P~search B~x 50408 TulSa, Oklahcma 74150 In .duecking over ..~he thin sections of core ships tl~t you forwarded to us via Ken Bird[,.-~.S,G.S., we note that thin sections are missing frc~ the follc~ring..depths ~ich Citco had sampled frcm the State core library last October: B.P: Sa,q Delta # 1 (33-12-16) " ' 9324' (a); 9459'; 9470'; 9755 APflD W. Beach St. #2 9513'; 9516' B.P. Niakuk #1 11,64'0' ~i!,,,,e~dyr B~ ii --11,317, ;- ii,320' ~Dbil ~orth K_upar~: #26-12-12 10,181'; 10,183'; 10,184'; 10,286'; 10,301' Please forward the missing sections to us at your earliest convenience. Best ~rsonal regards. Sincerely, William Van Alen Petroleum Geologist June 26, 1979 Mr. Robert A. Ballog Union Oil Company of California 2323 Knoll Drive Venture, California 93003 Re: Preparation of thin sections and paleontologic slides from public well sample library Dear Bob: Receipt is ack~_ow~edged for the respective thin sections, palynological slides, foraminiferal,slides and residues prepared from samples and cores of the following wells in fulfillment of the February 28, 1979 and April 19, 1979 letters of understanding to you and the April 30, 1979 letter to Dick Stewart: ARCO Sag River #1 ARCO prudhoe Bay St, #1 B.P. Sag Delta #31-10-16 Shell Lake 79 Fed. #1 Sohio J-1 (9-11-13) ARCO Put River #1 (7-10-14) Mobil' Gwydyr Bay S. {1 (8-12-13) Mobil W. Kuparuk Riv. #3-11-11 Mobil Kadler St. #1 (15-9-16) Exxon Canning River Unit #A-1 (19-4-24) B.P. Niakuk ~2 (23-12-i5) Two sets of the thin sections and palynological slides were received, as per our agreement. It is presumed that inasmuch as no thin sections from the ARCO Put River #1 were received, the approximate 20' of Lisburne carborate penetrated within the 9810' - 9903' interval that you sampled was considered insufficient to.warrant preparation of a thin section. The slides and thin sections have now been placed in the State's public library of specially prepared well materials. A copy of the June I, 1979 inventory of special materials is enclosed for your reference. Please refer to the June and July issues of the Commission's Bulletin for additions to this inventory. Robert A. Ballog 2 ~e 26, 1979 Your prompt.preparation and return of the materials prior to our agreed 7/1/79 'date reflects well on your, Jim Miller's, Bill Reay's, and Dick Stewart's attitude of fairness to others in the geologic profession and contributes to the mutual beneficial aspects of the slide preparation~ program. We look forward to the possibility of making additional slide preparation agreements with Union in the future. Sincerely, William Van Alert Petroleum Geologist cc: James A. Miller, Union, Brea, CA William G. Reay, Union, Ventura, CA John A. Packard, Union, Anchorage, AK Richard L. Stewart, Union, Anchorage,AK April 19, 1979 Mr., Robert A. Ballog U~ni~on Oil Company of California 2323 Knoll Drive Ventura, California 93003 Re: Acquisition of Drill Cuttings and Core Chips for Preparation of Thin Sections and Paleontologic Slides Dear Bob: In response to our discussions this week, permission is hereby granted to Union Oil Company to make small quantity cuts (approximately one cc. maximum each) from the State's set of samples and cores of the following wells for the purpose of preparing thin sections, foraminiferal slides, palynologic slides and kerogen slides, subject to the conditions set forth below: Set No. Well :~334 '~ M~bil ~dyr Bay So. #1 (8-12-13) 10,020- 12,237 223 Mobil W. Kuparuk River 3-11-11 8,700 - 11,532 232 Mobil Kadler St. #1 (15-9-16) 9,600 - 15,543 322 Exxon Canning River Unit #A-1 (19-4-24) 4,300 - 8,874 Cuts are to be made only from those intervals in which the volume of cuttings or core material in the State library sample is greater than I0 cc. No cuts are to be extracted if the volume of material in the State set is less than 10 cc. Union will provide the State with a list of the specific sample and core footages sampled. Union shall assume all costs entailed and will provide the Alaska Oil and Gas Conservation Commission with two complete sets of all thin sections and slides prepared and return all remaining sample and core residues. Ail thin sections and slides prepared from these cuts are to be received by the Commission no later than July i, 1979. We are pleased to work with you in this mutually beneficial endeavor and look forward to your company's continued exercise of care and good Judgement in the handling of this well material, as evidenced in the sample processing arrangements you have undertaken with the State in the past. Very truly yours, William Van Alen Petroleum Geologist MObiL OIL CORPORATION - P. O. BOX 5444 DENVER, COLORADO 80217 DATA TRANSMITTAL RECORD TRANSFERRED TO' STATE OF ALAS}CA - 3001 PORCUPIITE DR_IqrE ANCHORAGE, ALASKA 99504' TRAHSFERRED BY: Bill Konz- Denver DATE: April 24, 1975 DATA DESCRIPTION SHIPPING FULL SET OF CORE CHIPS IN ONE BOX FROM T~HE MOBiL-SOCAL ~/YDYR BAY SOUTH NO. SECTION 8 - T12N-R13E. THE DEPTHS ARE AS FOLLOWS: BOX NO. DEPTH ---- i -- . , .... , , ~ .- _ · ........ ill ti , BOX NO. DEPTH 1 8001..5' - 8038' 4 10,218' - 10,227.3' 2 8038' - 8061' 2 8280' - 8308.2' 6 11_, 32. _P' 7 _!i'35. _ 3._, 3 10,078' - 10,079 6' ' 6 12,217' - 12,237' 3 10,106' - 10,136.2' 4 10,140' - 10,151' 4 10,154' - 10,171' 4 10,193' - 10,210' Descriptors to in~~a.wh~,', ~pplic~: ' 1. Number copies or copy numbers 2. Type of print: Field or Final Type of copy: Film~ Sepia, Blueline, Velum ~. Series, Sequence or Interval Numbers~ RECEIVED BY:,, DATE: MOBIL OIL CORPORATION P. O. BOX 5444 DENVER, COLORADO 80217 R. T. Donahue DATA TRANSMITTAL RECORD TRANSFERRED TO: State of Alaska, Department of Natural Resources, Division of Oil & Oas 3001 Porkupine Drive Anchorage, Alaska 99504 TRANSFERRED BY: R.T. Donahue DATE: 4/25/75 DATA DESCRIPTION F - ~ .... .. ~.i . _ _ I $ II , Mobil-$ocal G~y. dyr Bay South ~1, Sec. 8-12N-13F, Ut~,., North Slope J Water Analysis DST #3 i copy Eastman Hulti-Shot Directional Survey 1 copy Well Completion Report & Log, ~ormP-7 2 Si~ned Co~tes / / PLEASE CHECK SHIPMENT THEN S Descriptors to include when applicable: 1. Number copies or copy numbers 2. Type of print: Field or Final 3. Type of copy: Film, Sepia, Blueline, Velum 4. Series, Sequence or Interval Number s GN AND RETURN UR IGINAL COPY DIViSiON C.;F OIL AND cbil 0il Corporc tion ,. CON iD N'[iAL P.O. BOX 5.~44 DENVER, COLORADO 80217 State of Alaska (3) Department of Natural Resources Divison of Oil and Gas 3001 Porcupine Drive Anchorage, Alaska 99503 Dear Sir: Mobil Oil Corporation requests your approval for recommended testing an~ completion procedure of Gwydyr Bay South #1 well. March 12, 1975 .; , , .. v GwydTr Bay Sou~h North Slope, Alaska/ ~.~~? Sundry Notice (form P-3) with other necessary attachments accompany, this letter. Yours very truly, H. N. Porter Area Engineering Supervisor PKP/vm att. R.EV. ,~- 1-70 STATE G. ALASKA OIL AND GAS CONSERVATION COMMITTEE MONTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS O,L [] O~, [-~ OT~' Wildcat WELL W~LL 2. NA~E or oPm~TOS Mobil Oil Corooration s. ADbRESS OF O?~TOR P.O. Box 5444, Denver, CO 80217 4. LOCATION OF WELL 210'N and 2140'E from SW corner Sec. 8-T12N-R13E UM, Alaska 5 API NU~ER1CAL ~ODE 50-029-20149 6 LEASE DESIGNATION AND SERIAL NO ADL47468 IF INDIALI~, ALOTTEE OR TRIBE NAME 8. L~IT FAiRM OR LEASE NAN[E Mobil-Socal SUBMIT IN DUPLICAT~E 9 WELL NO Gwvdvr Bay South 10 FIELD A_ND POOL, Ott WILDCA. T Wildcat 11 SEC , T., R., i~. ~BO'I'TOM }tOLE omJmc'r~ Sec. 8-T12N-R13 11~ 19.. PER1VIIT NO 74-55 13. REPORT TOTAL DEPTH AT END OF MONTH. CHA.NGE~S IN HOLE SIZE, CASING AiN-DCEIVIENTING JOBS INCLUDING DEPTH SET AiN"D VOLI3/VIES USED. PE112'OP,_ATIONS.'i'E,STS A3q-D I:{ESULTS FISHING JOB~ JUNK IN HOLE AND SIDE-TR~CKED HOLE AND A~IY OTHER SIGNIFICANT CI-tANG~ IN HOLE CONDITIONS. 4/30/75 12,237' TD-10,143' PBTD. DST gerforations 10,076'-10,108' and 10,120'-10132' 8adlerochit Sand) Tool ooen for 13 hours on various choke sizes; flowed at a stabilized rate of 2263 BOPD on 32/64" choke, T? 905#, GOR 574, Gravity of oil 34.6° API, BHSIP 4900# Prepared well for temporary abandonment, released riR and suspended operations 4/6/75 Filed well completion report and log 4/25/75 FINAL REPORT CONFIDENTIAL CONVIDENTIAL ,~1% Ill ri · , , il ~. Ih~,~, '//~'~.~-~' ~ ~ , Alaska Area Geolo~±st 4/30/75 i NOTE --Report on this form is required for each calendar month~ regardless of the Itotu$ of operations, and must bo flied in duplicate with the oil and gas conservation committee by the 15th of the succeeding month, unle~ otherwise directed. Form P---7 '~ .... SUBMIT IN STATE OF AtASKA struct H)~ o~ OIL AND GAS CONSSRVATION CO~MITIE~ ~ .... '~ ~' - WELL COMPLETION OR RECOMPLETION REPORT AND LOG b. TYP~ 0F ~OMPLE~ON: WELL OVER EN BACK ~ESVR. Other NAME OF OPERATOR Mobil 0±1 Corporation ADDRESS OF OPERATO~, P.O. Box 5444, Denver, Colorado 80217 LOCATION OF WELL (Report location clearly and ix accordance with any State requirements)* ,~.t~.r~ace 2Z0'N and 2140'E of SW corner Sec 8-12N-Z3E UPS At top prod, interval reported below 103'N and 2169' E of SW corner Sec 8-12N-13E UPS At total depth 44'N and 2140'E:of SW corner Sec 8-Z2N-ZJE UPS CONFIDENTIAL 5. AP1 NU'r,,LER~CAJ~ CODE. 50-029-20149 6. LEASE DESIGNA'FiON ~.ND SERIAL NO. ADL 47468 7, IF I~Di~N'. f~~ Oi~ TRIBE ~ob il- SOCAL 9. WELL NO. ~obil Gwydyr Bay South #1 10. FiELJ3 A~ND ~OOL, OH %ViLJDCAT Wildcat O~E~rlVE) 8-12N-13E UPM 12, P~qRZ~IT ~O. 74-55 11/15/74 3/8/75 4/6/75 i 5' OR 26' RKB used | 10' 12237' & 12,234' 0153' & 10151' ~OW~L~' Surface-I2237~°T~ TOO~ -' , ~L~ ~ooLs ~. PRODUCING INTERVAL(S), OF ~IS COMI~IJETIO~--~P, BOTTOM, N.~E (MD A~D TVI))° ,~. %VAS D!RECTtON~ ~ SURV~MADE 10,076'-10,132' Sadlerochit and 10074-10130' Sadlerochit I yes i 24. ~CYPE ELECTRIC AND OTHE[% LOGS 'BUN Resistivity, Acoustic, Density, Neutron, Gaw/ana Ray, Dipmeter, Cement Bond _ ~ - ! , , ......... ZS. CASING RECORD (Report all strings set in wel~)- -~ ~O~ S~E ~ C~,~TIN-G RECOF~ [ A~OL*T PULI~ 30" 36" { 327 Sx Arctic set ~ None 20" 26" I 3280 Sx X~ctic set [ No~'~ 9 5/'gr'' , 12 1/4} 900 Sx Class G [ _ .fG~J _ 26. I 27. TUB~G ~COF~ SIZ~,, ..... S~ (~[D), t_ SIZe.. D~ S~. (MD)~~~ PACK~ SET . ACID, SHOT. ~.~'U~, C~:XT 8~H~Z~, ~. 10180'-10~' Squeezed with 50Sx Class , , , i ii i i i i i iu ii i i i .... __ · ~. PBODU~ON DATE ~HST P~ODU~ON [ ~ODUCTION ME'II{OD (FloweR, gain.lift' pumpeR--Size and type of pump) [lh'JELLs'~u~'~n)shutSTATUSin(~°ducing or. --SW.pm~.~ING: llCXS~O P~S~ [24-110~[C~~RA~ :IOI~BBL' ' ,~A~r'f~' WA~BBL. lOlL GR.iVITY-~I (CO~.) Various lPacker_ [ - > [~; ~ ~ u ~ ~~26~ _ _.L ~ I ~~ 34.6° a~.. ~,srJb~,o~ or~sz o~Burned.~.cu. · ~Ts' o.S (~oU , .,,~1or/.~. ~'~a, ~t~ )- l,~U] ~ 'l~ ~ ]~ Il ~ i~~ ' ' . ~ s~ w,~sss~John Levor s en~ ---- 3J. I hereby certify that the forego~ and attached information Is complete and Co'rrbeT%~ 6etermined from allTavailable rectOs , . ~.**,.,.,~~~r a-ueo ogzs ...... - .............. ~ ..... ~ i~ _~ .....~-- -~L--_-k ....~ ~.~_ -.... .......... _ ..... . .... · (See Instruction~ and S~ces lot Additional Data on Reverse Side) ' 94 ' IH2'~0' [ 677" ' ~1~7 O~ · ,,43'5~47 {l~-~ ~0023' ' LINE~ ~CORD TOP (~.ID) BOdOni (MD) [SACK~ C~'I~T' 8881"' 10BO6' 300 Class' ~'E~dRkTION~'O~ TO ~BDU~O~ (Inte~, size ~d number) 10076'-10108' Four 1/2" per foot 10120'-10132' Four 1/2" per foot Oer~erai: Tn~s !or?'. is des:gne,a for s.ubr'r'~l',in'0 a complete a~}d correc, ~,.'e;~ comp~e~on ,=r~ort and I09 16: [r'~: ~:,.~ v.b ~ e~e,.,at on Js used ~s rc~erencc ',v,.hc:e no~ otherv,~se sho'~,'~ ~or depth me~sure- ' .~ ~ ~. r ','~ ~ '- - '· .... nfCrV'3~, Or ,.: c'""' - ' :, %:2tc :-. t,2:" ' ~ dV~L: :" :'C"' . . ~hO'.'. ~DC' · --.- ..... . .' : :. c~ ~'s" ~' n.~v).,., {ct Oc.,. t~'~ ..... ::-~ ..... ,.; :C.;)c.r~o~ t:~ .:~,:.r~ 30. ~'dbm~t a separate report :;:~ !' b ':: '- ., ::.:...::o'. .::e:~:~f:c':-J ~,:.,r each ad.~'---:~i ,~.'c:va~ t:) be seperare~y produ,:eJ, show- ~r6m23: 'S..~ k ~: .... 'er-'" Ar'ached s.upp~e?unta~ records {.f,r ~h,s ..~,'e[~ s, ;2 show the details of any mul- ~8: S~'~' :r : s,,rr-,~r~te comp:et~on report on this ~orm for each ~nrerva to be separately produc~. :~struc,.o" {,-:,r te:r,s 2C* e ........ . 34..,,SIJMZ'.:A:~V (};,' i,'~.:1(?,~ :.'F!(',:'. :'i':<'!:q i>,( ~.", ::,:,(, i?,i :,:;:','/x.[. "Fi'iWFE:[). ~'!~,FX%-SUI~d {),'\'1','",- AN'JD j~,jZC:C)'d~:RIF. S, OF' ()IL GAS. \VAq'I-:R ANL) MU!:) DST ~}1:. 10()23-_,~.' r,'~,.,._. 0_5' .' 4848 .... 490nJ~ -i P 9 ',..} .5', i::~a,.:.over.:~.~d 7.1}}Ci. IFP 2'774"-3125", FPP 2818~-4534f1, SIP ( ~ -,,' :: '.. ~-..~:; .?-±..7:..,:aox'' oil ct: rate of 2263 BOP:O~32/64" choke, 7;,'I.[~ .',x..7/,,, Gra'v-i.~v 14,6::) APT_ Core $.qqn'_$05s' Sand[ tiAh'r s~,~,w 0{7 o"! throuqhout '... ,.~ ,,2 . .~ ) ,. ~ ~ ~ ~ ..... Core 82~{.0'-8311)'~ Sand and shaie~ t:LRht, show of oil in sand. ''~'~8 n~oo~ ~ <u:-.,,~- o:? :[~ ~"0~78~ -' 2° ~ Core 11292'-1!352' Lix~esto::~e a:'x-! sh,:~!e, tlx~ht ~ no sho+~s ~ ')q'~ '7 '--] m,~-, ~ i) l.,{ ]q -{ h.e nO Shows Core !a~.L _~aO/ ) ~ ~ ..... c.~ ) .'15. (.; EOL,OG 1 C M A R 1{ F'J'I-S NAME U/Cretaceous Neocomian Unc. Kuparuk Ry. Sd. 8ag River Shubtik Sadlerochit Sadlerochit Sho Lisburne Argii!ites · MEA$. DgPT'I { 3145 5845 7910 7980 'lO000 10045 10075 10490 10625 12200 CHEMICAL & GEOLOGICAL LABORATORIES TELEPHONE (907} 279-4014 P.O. BOX 4..1275 ANCHORAGE, ALASKA 99509 OF ALASKA, INC. 2603 ARCTIC BLVD. WATER ANALYSIS REPORT o~:~-~o~_ _Mobil Oil Corpora~t. ion . v¢~ mo ..... GWYDYR Bay_ South #l .. ~z:~_-~ .......North S1 ope ........... __ _ ~ & CONC3~:]Z~___ __jCl o,,dy Water.-_~.. _ ~ _ . 7521 ~ .... .. 127 ~ . 25 161 · __3.25 _ _ l .40 2,06... · _ 8.65 s~ - 96 2.00 _-__~ .... _- ___ ~ .... , .... ~" l O~dO--- 296-; l 0 .:~._ _~.~, __- _ - . ~"~ ~ ~ ~~ ..... 2708 .... _4~,4]. ~_~ --.. 342.51 ,u _ - ..... --' - - ~-~ -~ - - o~n~ .... 0.37 ~,~. . ~ .... __ 0.3_6 __~_ · C! 50 Na ~zco' 5 c~ C! HCO~ SO4 CO~ CH~ylJCAL & .... 3EOLOGK;AL .LABO~A'f'OJ' -~%. 0F TELEPHON-~' (907) 279-4014 RO. BOX 4-1276 ANCHORAG60 ALASKA 99509 ALASKA, INC. 2603 ARCTIC BLVD. " ' %VATEIR AHAL¥SIS REPORT O~-.~&TO~ Mob!_l 0il Corporation :- _ , ~I,~ · .' North Slope___ __ _. ....... s~T~ Alaska .... = .... _, DAT~_ Apri_l__5, 1975 LOCATION_ LaS .O ...... 2856 FOI~MATIOH - - - a,,~,rpz,,~ ~:~o~ .... Sa_rap1 e No. 1 ~ . .. 6520 ' 283.59 8~. . . 96 2.00 ,,~ ..... ]02 ' 2.6] ~ ........ 9'100 256.62 ~ ..... , ....23 ,j, __ .]=-_89: B~~ ..... 2354" 38.6I ~ ....... 147 .7,89- · . .. ..... 297.23 _. _ -.. 0.39 .... ~~ 0.41 ca,~~. C~ ' 50 N, :HCOs 5' Ca . · . so' 5 CO~, 5 ?~g C! : HCO~ CO= 272:5966 ,.;, Reservoir Pressure & Temperature Data ~:' Individual Well Data Sheet 4871Soulhampton Dr. Anchorage, Alaska Company., ,. Borough State__..~_ J c"l ~ J/.. q __ Date__~_ o__ ~n o.g c. k - / ~' P ~¢; L J ~t '7.5 T+ bT DATA · Cumulative Production / ,.~ .~ q Bbls. Production rate prior to shut in''r~ 'a 4~ ?; BOPD T = g~U Bbls./ P-?-,,/:,% BOPD = 0,~_-8 Days X 2/+ = /~, 7 g Hrs. ~ T T + bT BtlP @ ' ~T . ~ /¢o~V' ¢4D. Ii, 0 ? 102 ~, ~ ;. ~ ..::.i: ~:;, ,.;.~L'.;~ 10" 1 ;?4750 ' ' ..... I ' , -r-' , , . ,. ..... : .... ::"' ' : ::'t'I '; ......: .... ::'~ ' ":' i-'r-' -'~''r-f-! ............. ' ' ;: · ';: t ..[.L_.' ; i ? ~ ' . L ..L : ;~/ljl,.) - ........ ~ fi ...... :------~-~-T------~-' "-r-7-. ~i ............ --7---7--~.'-~-~ ....... i ....~ ': , ~ ~ fTT7...,: ~ i ': . i, I ~ I .... . ; ~ . 1 ..... ~ :, ~ , . ! i . '; .;i 'i : · t, ; ; 7. 7'i7'71:- i' ! ,":' -7;~~q--T-l.: 4 --,- ---,- 4 :, .' .... ........................... .... : .... :.. i.:..: :_..:...: : .......... :_.!_._:._._'___' ......... : .; '.~_: .... ...:__, .. i. : ; : ' ~ · ', i ' , ' , I , : ', : , ' ' ,. ; . , . . : _.. ! ..... . : . { . : , ,~ . , ; .. -. ~ l ~ ~ . . , ~4~50" ...... ' ..... ...... !. , , A.T ST.~rE A ! ~ s t.x.~ DATE TZ,[E BOROUGH A,,-' ELAPSED TZMF, HR.MIN d: C>', f .: ,,OIL PROD BOPD --, ,'.., ? '1:". i :' TOTAL INJ. H20 GAS GAS FORM TBG PROD OUT VOL GOR PRESS CSG ~z.o. R.D. R.D. l D~T U~I ' PRESS Iooo~ /oocg' laoEo' toc~%q PSIG ! ,,. ? '/':: t ~.. ,... ,. ~ :4 .,.L i , V ! ti ';, i! ,2" "t 7 H {~ C dj47Ai4 i F LEI~ff O~M W ELL FIELD STATE ~AT~, BOROUGH FORY~.TION DATE TOTAL INJ. ELAPSED OIL .~ H20 GAS GAS FORM TBG CSG TDiE PROD PROD OUT VOL GOR · PRESS PiLESS GAUGE GAUGE R.D. R.D. D~UM · ~.iE R~!APJ(S HR.MIN 'BOPD B~ PSIG STATE BOROUGH F OPdVLCT I ON DATE ' DATE GAUGE BHP@ R.D. D,'K[ U~I DiE R~L~RK S HR. MIN BOPD P SIG I , , ,, o'. ~£', <7' 5: S; ~.' C OM?AN I' FLAT]/ OiiM WELL F 1ED STATE BOROUGH FORMAT I ON DATE !~=..~.. \~' ~' 0:5 ' c o GAUGE GAUGE TOTAL INJ. BHP@ EL~SED OIL H20 GAS GAS FORM ~ TBG CSG R.D. R.D. DaTU~ T~IE PROD PROD OUT VOL GOR PRESS PRESS DATE ,~,,~kRKS HR.MIN BOPD PSIG _ . .............. ........... . ..... , ...................... . ................................. ...... ........................... Ie ii¸' III, IV. FORMATION TEST REPORT Company Location' County' Date: Y', ! ~.~> ~.~ _ R' ! ? ,?.7 :~.~ ~::.,z.~ ~E 1 e va t i o n' ' .... -,~,"~ -' ' ,.,..~ ' :":', State'j_~.-~<~ ....... _~itnessed By'~I.~...4,! ~: ,/q..T Prod. Test Number: ~ Depth of Casing:/0,~0~ ~epth of Hole: ~o./~,~cl' ~ b, Depth of Packers: /~ :a~' Type of Packers: ~,.~.~%~ /~.,... .... _: ~ Test Interval: d'-~.~ J~ '~ to t~ ~'. Amount of Ta~l': / ~' ' extending from ~~.. to /oo~c>~,~_~- Perforation in tail from~~'to Bean size in Tester' Hole Size or Casing I.D.' c~ .... <~':~ Size of Test Pipe I.D.' &~,~G~ ~.~ ~_ At~=~,~____. Size of Drill Collars I.D.' Collars bbls/ft' ~ · Cushion Type' rv',~'::i :': .... Volume of Cushion' ~5,.~,~ ._ II ". Hole Capacity bbls/ft' m,r,:~_. "-. Capacity of Test Pipe bbls/ft' ------_ ". Capacity of Drill Volume of Fluid Below Packer' ~-~,~ bbls. Height of Cushion Above Tester: ~...~d~o___'.. '~bls. PreSsure if Nitrogen Used .. ..... psi. .V. Hole Fluid Characteristics' Weight' ~o~- lbs./cu.ft. Viscosity' Type- Dum__~j~_ ..... · Rm or Rw .----- PPM: 1'2oo _c~" · Water Loss' Cd', ~rD ____~ °F-~~ 'Equi va 1 ent VI. VII. VIII. Annulus Fluid Level' Steady /C If Dropped Volume Used to Refill Time 'Breakdown of'Test' ,_T~.4z /~-~:m..-/"/~- 1st Flow from 2nd Flow from~m~z~/}?~ _ .~=~ /q ,~:-~ . Description of Flow' 1st Fl°w: 2nd Flow' ~-- wy o'/e_ .sT ~' .3 SouTH ~ J Page IX' Description of Recovery: X: XI. XII. Pressures Recorded' .0 o~ · Insi de I~ Outsi de #1 k.,-~''~ #2 '//3 Element. Range C16ck R~5,g ~eri~d'l Number ..... · . Depth .... iIHP ,, , ' , ,~ - NOTE: Above pressures are measured from cahrts at the well site; do not use when writing well history. Use pressure read with chart reader . .... ~.~ .... i ii - ? '-3~' P..,v~',l :r',.., 4 ~ ,,,.,,,.-t ' Temperature Recorded' Remarks' .--4 /+ P.r d,--,,,. · 1 I IL~ x4 * *~ ~ I. ~ , ~ ..~:~..~ ~.~ -' /~/o ~ .... /~ 2,~ I~,~ ~ ' I l _7:L . . · ,.5-.0 ~ ~'o .... ~'~~ ~-o H ~o ..... ¢ ~' ~ Sheet { .~ ': CORE DESCRIPTION o . .'- ,,,, ~_.,~ ~c._,.,, i -'~',),.. %"~1 ,,o~. s~c % , \~. pera~or & Wei ,~\0'0 ~, .xO ~ ~ .'% ... ~ .... t---------- ~--- Geographic LocatiOn .~...~'~' ~0o~ ~ . State ~5~ _ . . Date Core ~ ~ Interva~Cut from ~~ to ~ Recovery Ft. ~'~'~ ..... ~arrel (Size & ~pe)~ ~..'~~~-~ ~~~ore Co. Eng._~~~ ~'~~ Bit (Size, ~pe, Sertal[~o.)~ ~.~C-¢~.~?!~}De~c~$bed by V~O~ ~~~ ~p Pressure :~.~0 .~5 ~ ~it weight ~;oQ~ ~_~ ~M~ ~g 'BoX o._r Tube Gr'~Phic Time No. In~terval Depth Section MPF Litho,l.o$ic Description. , _ ~ ' . · ~o~ .. '- 3z ~ ....... (~ , _ l L . . "~" "'"~ RECEIVED . . OCT 0 ~ 1~ ~ Gas Cons. commission Alaska Oil & ~ ', ~ ~ - .. % Anchorage - , ~.- ~ ..~ : · CORE DESCRIPTION Operator .& Well ~~,~ '~=~ ~l~oh~'- ~ SO. Loc. Sec. B T ~ ~ R ~ ~ Core ff~ 0~ ~ Dat~ ;~[t~~ ' ~ Described by ~o~-' AW~~N ".Box or 'Tu'be ' Graphic Time ............ '~o.1 InterV, al Depth Se.ctio.,n~ MPF , , _ Lith, ol,~gi, c .Descr{ption .... · _ _ ~_~,,, ~_~/~+, ~--t- ~,--o~,% r' ' · · -....... . ' ~ - - . . '- .---. ~ ~~~~ - - ' - ~s~~ 8~ ~o~-~K5 ~k c~ _.~o~,.. ,, ~ .............. f 8~eet ~ of '~ ...... " CORE DESCRIPTION Operator & Well ~%~ ~ ~.% G~o~%- ~ ~0, Loc. Sec. ~escribed Core ~ ~~ Date ..~ ~%~% ~'~ No. InterVaI Depth Section MPF Lithologic .Description 3 o . ~ . _ - , .... , ...... CORE DESCRIPTION Mneet q of_ q , Operator & Well .~,~ ~F.% ~~W~- .~)~ ~o. Loc. Sec. Core ~ O~.. -Date ~.-~l~']~ ..... . Described by :B°x or Tube G~aphic Time .... 'No.! Interval Depth Section I~F Lithologic .Description - I I1~ . ~o3~ -- ~ --5 CORE DESCRIPTION Operator & Well ~~'~ [i ~ % ¢~~, ~)~k So. ~ ,, :-Date ~:1~[~[~~ Sheet , ~" ~ of 9 Loo. Sec. % T%IN.. R %'55:. Core # (~)t~ , Described by 'Box .... T ........ ~ .,0r,, u'be. Graphic. Time ....... 'No.l .I. nterV, al Depth Se..ctio, n MPF ,, . Lith. ol,ogi, c .Description .... ~ - . ~.~ ~, ...... ~ ~ ( ' ,,~ ~,~.~ ......~ ...... , . , . %oq~ . ~ .. . c~, ~o~ ~s ~oo .......... Core 4~ ~ 'Date .Box or Tube Graphic InterVal Sec tion CORE DESCRIPTION ti i% Loc. Sec. ~ T Described by ~__~~ Lithologic -Description '°' ' CORE DESCRIPTION . Operator & Well ~~'~iI~ \ ~-~o~ ~. ~c~.~ ~0~ Loc. Sec. 'Date . ~ ~l~ ~~',' Core #, ~ _ Described bYi~~ ~~-~o~ .r ;n~,~ ~ - ., Sheet / of y CORE DESCRIPTION Operator & Well ~0~// ~qc/,~ ~m~ ~ou~ Loc. Sec. ~ T /~/~ R /~-- Geographic Location ~/0r~ ! J~nL~ State ~/~j~ Date //~/~ . Core # ~ Interval' Cut from / ~~' to ~>~/~' Recovery F~. ' ~ '~" Barrel (Size/Type) ~$/~X ~ Core Co. Eng. Bit (Size/Type/Serial No.) ~,~¥~/~~ '~~3_ Described by Pump Pressure /3~0 Bit Weight /~o~ RPM Box or T~be Graphic Time No. Interval De~th,' Section MPF Litholo~ic Description . . &~ ~ / (~o i) . .i!~o~~, ~o ~o0 Sheet ~ of ~ CORE DESCRIPTION Operator& Well /~/~,'/ ~'~C,~ &u ~P ~ Loc. Sec. ~ T /~/R~/J ~- Geographic Location41, FFI~d~/~Za ' State ~j~ Date Core ~ ~ Interval Cu~ f~m f ~0 to ~/~ Recovery Ft.' ' Barrei (Size/Type) ~~ ~ . Core Co. Eng. ~ff~~ Bit (SiZe/Type/SeriaI N0.) ~ W ~ ~C'~ Described by ,~ ~ ~ Pump Pressure /j~ Bit Weight ~-~ . ~M ~-~ Box or Tube Graphic Time No. Interval DepthSection MPF Litholo~ic Description I ' ~ .... 9290 .... ~/~cJr~3 .-~k ~ ~ c~. ~29Z .... ~293 .... . . ~/~ ~.~ CORE DESCRIPTION Operator & Well ~Q~;'/ ~2~- ~ ,[~u~ Loc. Sec. ~ T /~R /~-- Geographi_c Location ' ~/0~! ,fA~/~. - -, State ~/~ Date ' //~/Z~ Core ~ ~ Interval 'Cut frOm ~'' '~~ to ~/~' Recovery F~ / ~C* ~/ Barrel (Size/Type) ~ 3/W X ~. Core Co. Eng. ~Af~¢~ Bit (Size/Type/Serial No.)' ~/~lf~ ~C-~O Described by ~~ ~ Pump Pressure /~ ~ Bit Weight Z~-- ~ ~ ~M ~ -M~ Box or Tdbe Graphic Time No. Interval Depth Section MPF Lithologic Description .. ~?_. .. £~f, .. .. ~ -- ~30/ -- .- ~3o z -. Sheet ~/ of ~/ CORE DESCRIPTION Operator & Well A0~// ~w~Jur ~ ~u~ Loc. Sec. Geographic Location /~/~r~ /S~ / . State ~j~ Date .... //~/~ Core # ~ Interval-Cut f~om v .~~, to ~[~/~' 'Recovery Ft~ ~'~ Barrel (Size/Type) ~$/g ~ ' ~ ' c6re Co. Eng. C~~z~ ' Bit (Size/Type/Serial No.) ~'~z~ . ~C'~O ' Described by Pump Pressure /~ ' Bit Weight /~-~ . RPM Box or Interval Graphic Section 30'7 3o9 3/0 Li__t.h. o logic Description CORE DESCRIPTION Sheet / of / Operator & Well ~0~// ~~f' ~ ~dC/~k Loc. Sec. T R Geographic_Location - ~/or~ t' ~f/o-Dgl State. /~/~¥~ ' Date ~ ~/~/~ .. Core ~ ~ Interval Cut from /~ 0~/ to /f) /~' Recovery Ftf ' /'~" Barrel (Size/Type) ~A~f~~m, ~ ~/~ X ~~ ..... ~ore Co. En~.b (~1/~ ~~ ~ Bit (Size/Type/Serial Nq.) ' ~ ~ ~J 712q , ~escribe y ~l~ Pump Pressure ~- / ~/~ Bit Weight /~ - 2~~ ~M ~ . Box or Tube Graphic'Time No. Interval Depth Section lq_PF~ Lithologic Description c ~. Sheet / of ~ CORE DESCRIPTION Geographic Location-- /~/n/~/' Core (t q Interval CUt from ! Barrel (Size/Type) ~ 3/~ M ~( ~' : Bit (Size/Type/Serial No.) ~ z~Z Pump Pressure ?~_~ ' Bit Weight State ~/~ Date to /~! / ~ Recovery Ft.-- Core Co. Eng. ~7~i£~ ~AI~ Described by ~ ~ Box or T~be Graphic Time No. Interval Depth Section I~F Lithologic Description ~ · . %.o .. . ·.. l O, I ! O' q* · · ' ~ , . CORE DESCRIPTION Sheet ~ of .~.,m OGPe:rar:°%lc&g p ' ' - - ' ~J~ ,~/~oe~ State ~/~dk~. . Date ~'-~/~ , Core ~! ~ Interval Cut from /~,' ~0~' to /~,/~ Recovery Ft.' ~,~ Barrel (Si'ze/Type) ~ !/~ ~~ ' Cor~ Co. Eng. Bit (Size/Type/Serial No.) ~ ~/jA ~-~ Described by /p~ P~p Pressure ~ Bit Weight ~m~~ ~M Box or T~be Graphic Time No. Interval Depth Section MPF Litholo~ic Description ., .,. TLT~ am J' o ,~ c 'Lt~ff,[~ , ." .... .. ~ - am ,//¥. ' ~O.' /0 ~?po.~, 'r, c.; :.,it c ~ '. 0~ /g//~-- . -- lO, tt~.2~, /5//~-. ..-- ~, I~ ~I~ ~,I c. ' ' ' IO2/~1-,. o .. CORE DESCRIPTION Sheet ~ of ._~ Operator& Well ~ Og~/,, .~.,x/,,d,p. . ~OU_ ~O~Z Loc. Sec. Geographic .Location /~]or~ ~,~0~ ! State ~/~k~ Date ,~/~/~----- Core # ~ Interval'CUt from t/~,/~ ~ to /~ /~ Recovery Ft~ ~,~.~ s~rr~ (s~zei~v~) ~ ~/~ X ~X~O ~ core co. ~s. ~3~/1~ Bit (Size/Type/Serial No.) f '~j~ ~- 2~ ' Described by Pump Pressure ~ Bit Weight /OZ ~~ ~M Box or T~be Graphic Time No. Interval Dep_th Section MPF Litholo$ic Description · 1~o,/2.:~.$,, . _ o . ~ ~'~i~ ~ ~' (/~,/~.s9 ~ . o ,~,118-- o o . . ~ .' ~ · ~- .- . Sheet q Of ~ CORE DESCRIPTION G~ographic .Locatiofi '"' ~]~ ' ,[/~ State /~/~q/¢~ Date Core l! q Interval Barrel Size T e ( / yp ) Pump Pressure Box or Tube Graphic r Time No. Interval Depth Section MPF Litholo~ic Description · · · m/~/.- · .. . d~. ~.. ';4' ~" ~/~ ~, ~, ~.~d' ~ .0~1 o · tO~13q'.'¢ o-. Sheet ~-- of ~- CORE DESCRIPTION Operator & Well /~,'/ /~~u~ ~ ~J~~ Loc~ Sec. 2 T /~N R /~ Geographic Location ' ~/~£~A /f~C' / State /~/~J Am Date ~/~/"'~ Core #__~ Interval_ CUt~/ from. '/~,.D,/~ to /D /Y~ Recovery Ft! /~?~,2 ~ Barrel (Size/Type) ~ f~ ~y ~ C~r~ Co. Eng. ~J~//~ ~/?~ Bit (Size/Type/Serial No.) ~ ~/3~ /~-~ , Described by ~/~. f ~ Pump Pressure ~ Bit Weight /~ - 2~~,, ~M ~-~ Box or T~be Graphic [ Time N'o. Interval Depth Section MP~ Lithologic Description x / ' ~ ~~'~:~ ,~,,3~ .... ' ,fi ' ,, CORE DESCRIPTION Sheet / of ~ Operator & Well /~7~z-/ ~w,.,c/t~ ~G~ ~Od~ AL?c./Sec. ~ T /j.~R~_~~ Geographic Locati6n' - ~~ -~D~ I State /~/~t~ Date '~/~ / ~,~ .. Core ~/' ~C Interval Cut from I /~./~0' to /~,. /~' Re%ov~Fy ~t; ' -' /~'~ . ' c°re'Co. Eng. ~//~ &/f~ ~ Barrel (Size/Type) ~ ~/~ ~ ~ Bit (Size/Type/SeriaI ~.) ~ '~" ~C-~ ~ Described by ~~ ~ ~ Pump Pressure _ ~ ~.~ Bit Weight /~ ~ ~i ~ ~ ~'~ - ~ ~ Box or Tdbe Graphic Time NO. Interval Depth Section MPF Litholol~ic Description .. 5~p ~ ' ~'."o , I~ ~/ (/~j ~ ) dl~, Z / - . -.... ~,oo: :o~4~(, ~":!/ I I ~' ~ r~ 'i f~ , . . ~q /~.. . c ~ .. , . . . . . /~/~?--~. .. -. O. 0 . . . CORE DESCRIPTION Sheet ~. of ~ Operator & Well /~// /~d~ ~CU J0~ Loc. Sec. Geographic Locatidn' . /q/o£~ /,~0~ ' 'State ~/05~C~ ,,, D~te _ ~/~/.~:y Core # ~ Interval ~t fro~ ' /~,/~' to /~:/~ Recovery Ft. //'~ Barrel--Type) ~ ~/f X~ . ,, CoreCo. Fn~.. Ua//~,.,. Bit (Size/Type/Serial No:) ~ /o/jA ~.-~ , Oe~criDea Dy Pump Pressure ~ ~ - Bit Weight /~-~ ~ ~ RPM Box or T~be Graphic ~ Time ...... No. Interval Depth Section MPF Litholo$ic Description ! O IYL,~' I -~ - . ' 6-"--------- c I ~ '~ / ..... ~ ~,~ · " I0,1'~ ' o.._. oam?~c :~,,~ (.IU~l'-/¥,u P ~' ~ ~ t ' ti · t , ~ '~.. , ~ ~ , , ~.. , , ,.Z,L~ :,,,~ :,~. ~.~,~,, ¢ ~,~/~,~, . .,:, · .. ........ · Sheet / of ~ CORE DESCRIPTION Geographic Location ~.~C~ ~.f~,~¢ / . ~ State ~./?,~ _ Date ~L2/~,/,~C, Core ~J ~ Interval CUt from I~/, 15~~ to /~.1~ Kecoye~y ~.. Barrel (~ize/Type) ~ O/M~ ~X~ , . C°~ Co. Eng. ~//~ ~'/~ Bit (Size/Type/Serial No.) ~ '~ ~/~ ~2~ ~' Described by f~..~,~ Pump Pressure //~ Bit Weight /~-~~ RPM Box or Tube Interval Sheet ~ of ~ CORE DESCRIPTION Geographic Location- ~/~F~ ,~/~n~ V --State ~Jk~ Date Core I! ~ Interval .C,ut from //~,/~/ to /'(~,/~ ' .. Re~oy~r/ ~t. //,~' ' e T e J Core' Co Eng /~//~ Barrel (Slz / yp ) ~ ~ ~ ~~ _ · · _ P~p Pressure //~0 - - Bit WeighE /(/~ ,~00 RPM Box or Tdbe Graphic'Time No. Interval Depth Section MPF Litholo$ic Description ' /rE~ rc ~r~r, .... - ' ~ -~l - Sheet / of / CORE DESCRIPTION Geographig_ Location '~/~£ f~ / /~h/~ ~ ! State /G/~J/(~ Date ,,9, h/'~, ~ Core # ~ Interval Cut from /~./~& to /f/,'/~ Recovery Ft. - '~/ Barrel (Size/Type) ~/~ ~ ~X~ / / C0r~ Co. Eng. ~/& ~/~~--~ Bit (Size/Type/Serial No,) .~ z~jk ~C '~ " Described by ~z~,7 ~ [~.//:~.~ ~/ Pump Pressure .//~ Bit Weight /~-~$~'~ ~M ~-~ Box or Tube Graphic Time No. Interval Depth Section MPF f Litholo,~ic Description " ~ o .~' '--"---'~- ,f~,vl~ ~/(/o,/~') /q/ ~ ~ .. ..:-. .. , . . - , ~ o 0 _ . , .. I-d.. ...' , ~ I , I/ / // /"'I /n CORE DESCRIPTION Sheet / of ~ Operator & Well ~0~// ~1~o~,£ Geographic Location /~r~'i',fhb~ Core # ~ Interval cut. from Barrel (Size/Type) ~ ~/VX 4 Bit (Size/Type/Serial No.) ~ IS/32 Pump Pressure /~,5-~ ... Bit Weigh~ Loc. Sec. State ~/~; ~ D~ate ~/9/~ to /~.~ ~/~ - Recovery Ft.' Core' Co. Eng. Described by Box or T~be --~raphic Time ~ Litholo~ic Description No. Interval~ Depth Section.. MPF .. CORE DESCRIPTION Sheet ~ of ~ Operator& Well /~Od// ~.fdCLc/I' ~ J~U~ Loc.. Sec. Geographic_ Location ~.~f<.Zt~ Statel~&:k~.. Date' Core ~ ~ Interval Cut from ~/~)1/90 . to /0, ~/f Rec?v~ry Barrel (Size/Type) ~ 3~ M~ M ~' Core Co. Eng. ~//~ Bit (Size/Type/Serial No.~ ~ *~ ~-~ , Described by Pump Pressure /~ - Bit Weight /~-/~ ~M Box or Tube GraphiC'Time- No. Interval Depth Section I~F Litholol~ic Description · · 'b · /~,~. , .. _. .~ a~ c f c · /~.~o~..~ ,. 'I o ' ~ .o o . POOK floro~ poor "'---'-- 'E~r~l~' p~ ~-'4 L- CORE DESCRIPTION Sheet ~ of ~? Operator & Well M~/'/ ~L/~/r/~ ~? ,[~df~ ~oc~ Sec. ~ T /~W R /J~ Geographic_ Locatmon ;'- '~/~/' ,f/o~Oe. - State ~/~,/~. ~ate ' ~/~ . C~re ~ ~ Interval ~t-fr~ ~/~$ /~,? to ~ ~C Em Recpv~y Ft. B rrel (Size/TYpe) ~ ~ ~X~ · g' Bit (Size/Type/Serial No.) f ~F~ ~C-~2 Described by Pump Pressure /~ Bit Weight /~-~ ~ RPM Box or Tdbe Graphic'Time ~o. Interval Depth Section ,_MPF Litholo~ic Description CORE DESCRIPTION Sheet / of / Operator & Well /d~(./g/ _/~_/.J~/zf_z' ~;~ J'~f/lt'~ , ~o~. Sec. ~ T /~R /~ Geograph~ Location - ~/Or~4/c~/<~ / , State ~/a~Ra Date Core t~ ~ Interval Cut from ,/~.~/~ to /~. ~[/ Recovery Ft. Z ' ~'~ Barrel (Size/Type) ~ ~/~ X ~~' ' C~r~e~%~m~%~-b Bit (Size/Type/Serial No~) ~ /j~ ~C-2~ ' Y ~/{'~ Pump Pressure /~ Bit Weight ~M i Box or T6be Graphic'Time No. Interval Depth Section MPF Lithologic Des_cription , - ~ ,..rc, ~1, ....i g CORE DESCRIPTION Sheet / of ~ Operator & Well ~fl~f/ ~z.zu/r/utr J~)~o/ ,r~/~ Loc. Sec. ~ _T /~ R~ Geographic Location ~l~mii-~l dlf~,~ State~/~.~ Date '~//O/~ .. Core ~ /0 Interval Cut from /~~z to /~~-t Recover~ Ft.~ '~' Barrel (Size/Type) ~ 3/~ ~ y~O Co~e Co. Eng. ~/[~ ~/~ Bit (Size/Type/Serial No.) ~~ ~C~ Described ~Y ~P ~ ~7~ Pump Pressure / / ~-~ Bit Weight /~ -/~/ p~ RPM ~ Box or T~be Graphic' Time No. Interval Depth Section MPF ~ Litholo~ic Description 0 ,, . ,.. . ".~ ~ ~~le ~ ~o ~t.~') .... IJ~Zq.~',~ 0 v (fffrf~ cl,:Ar:, ~o- o~o~, ;~:~, cue o~c.~ F- Sheet 2 o f ~ CORE DESCRIPTION Operator & Well M~ ~mud~: ~m~ ~U,~T~ Loc. Sec. Geographic Location /~r~4,~! ~e / State ~/n~f~ Date ~ //~/~ Core # /~ Interval' Cut fro~ /~f~O'. to /~ ~M~ Recovery Barrel' (Size/Type) ~ J/~ ~X~O ' Co~e Co. Eng. ~/4 ~//~ N ' ~ ,__ Bi~ (Size/Type/Serial o.) ~ ~; ~C-~ Described by P~p Pressure / /~-~ Bit Weight /~/~~ RPM ,, Box or T~be Graphic'Time " No. Interval Depth Section Mp, F Litholo~ic Description ,. .. ~ {"z qro~t& d (c, :',, ,, c u' ,, . · ~ Sheet of CORE DESCRIPTION Operator& Well ,~Y~nl/'/~/~VrT~/~.~*%/_ ~ .... Loc.~S~ec. ~L___T ~ ~ographif ~cation- !~;~ .i~~ , . _. S~ate ~./~Z ~ ~ / D ~ Core ~ ~ Intervaf_.Cu~ fro~//~~ to[~ xecovery e' · ~{ I ...... Barrel (Size & ~pe) ~4'~4 ~~;*.~- Core Co. Eng. ~~fy~~ _ e. e. Serial ~o. /~ ~ ~-~~ Described by ~,~.~~~ . Bit (Siz . ~p . )~ ~ ....... p~p Pressure . /,,~~ · [ [~ Bit Weight ~ ~g/~~ ~-- ~ ~--.~7~ _ _ -Box ol 'Tube ' ~raphi'c Time. · No. In-~erval D~th Section MPF Lithologic Description , . ., i , , i ,,, . ;e~ .. . z~ ~ ~ zq?. ( ~-~I ~ ~ ~o~.~ -4q ~ ' j_I_TS ., , ; . ~ ~ ~'~ ..... ,,, : ...... , ~, ,, ~ .. .~ ~ · ' , ,, , . ~-- CORE DESCRIPTION' Operator & Well ~0~'/~/ ~PIt'~/PY~ ~~ ~ , Loc. Sec. ~ T /~ R /~ Core ~ // - - Date ~ ~./~~ Described by ~.~.~~~ _Box .o,r' ,Tube J" Graphic Ti'me .................... · ..... No. Interv, al . Depth Sectio,n MPF . Lith, ologi,,c.,.Description _ 11,, ~°7 - , - ~o - - , x~ .~.. -~4 . . , ~-- ... -.~ , , ~a/-- . . :. ~ .... ~l~eet _~ of ~7~ ~ - Operator & Well '~L Core I/ //~ oc. Sec. ~ _ TI~ R /~ - . ~ --_~ _ ~~ Descrlbed by~ S-ection . . Lithologic .Description 3.3o " . :-~ Mneet of CORE DESCRIPTION Operator & Well '' V37~V~;_i~Y~, Loc. Sec. ~ T /2~ R/~~ Core (~ // ' Dat~'- ~'~ ~ /~7~escribed by~ ~~,~~~ iBox or" 'Tube 4. ['.'~raphic Time .......... · ' ' No. InterVal D'epthl Section I~F Lithologic .Description , _ ~ __ 'I ~'-- ,, ~¢.3- ' ~7 ~ :.~l~ I~- ~ · .. . ~ " : . , . . cORE DESCRIPTION Sheet ___/ of ,.~ . 'ell "' ;I,~/.. Loc Sec T Operator .& W ~4'/_~z/ ....' ~ ~_6~_lf~~~Z~. . ' ' ~ographic ~cation ~~A: ~~ .... State ~~_ . Core ~ ,~ I.tirval_Cut from L~ to,~~ Recov~,rYE~t- Barrel (Si e & ~p ) ~'~ x~o~ ~_f~ _ Core C . g. Bit (Sime, ~pe, Serial No.)~~~-~~~~21Descrit>ed by P~p Pressure /~0 Bit Weight ~?~~ 'Box .05 Tube_" " Gr'aphic Tim~-- No' Interval Depth Section MPF . : . / ~ ~. .- ... , . · . ... , ,'/zz~l : ' ' . ..... ' ~ m'- Lithol o~,ic Description 3 ~ .. ~ ".~ ~-' ~ Sheet ~, of - · ' " '. · CORE DESCRIPTION OPerator & Well ./~/ #Z ~i~o~woZ~~ ~¥ Loc. Sec. ~ T 7A~ R ~ographic ~cation ~7~ ~~ ..... ~ State ~~ Date Barrel (size g ~pe) V~ ~Core Co. Eng. Bit (Size, ~pe, Merial No.) Described by ~ ~ P~p ~ess'~e '. Bit Weight' ~M or Tube In~terval GTaphic Section Lithologic Description REPORT' o~ SUB-SURFACE DIRECTIONAL SURVEY COMPANY G~D,~R BAY qm.?~';i .NO I WELL NAME NORTH LOOA¥tON Radius of CurYature~,~,,~:~. ........ t,~oa: JOB NUMBER M;iO 375S-0 3 TYPE OF SURVEY Mult~-onot DATE 1975 SUP. V~Y i Jay Martin RECORD OF SURVEY ALL CALCULATIONS PERFORMED BY I B M ELECTRONIC COMPUTER .... :=- ; .................................. TRUE ........................................................................................................... DOG'-'LEG ~EAS. DRIFT VERTICAL SUB DRIFT TOTAL cOORDINATES C L 0 $ U R E S SEVERITY .... SECT[ON DEPTH ANGLE DEPTH SEA DIREC ' '~ DISTANCE ANGLE DEG/IOOFT .... DISTA~_' 2500 0 [5 2499.88 2473.88 S17,00E 2500 0 30 2599.87 2573,87 S34,00W' 2700 .... 0 30 2699.87 2673.87 S[2.00E 2800 0 55 2799.86 2773.86 5[7,00W 2900 O' 45 2899'85 2873,85 Si2.00E 3000 ! 0 2999,84 2973,84 S 8,00W 4.71 N 9.07 E .... 10.22 N 62 31 ' 7-E 3,88 N 8,90 E 9,71 N 66 26 29 'E ......... 0'39].- ................... ;3;-7-3- 2,65 N 8.85 I~ 9,24 N 73 19 57 E 0.7~8 1.20 N 8.79 E ........... 8.87 N 82 12 '50 E '-0.38~ .................... ;1,05 3100 I 0 3099.82 3073.82 $-6.00E 320'0 .... 1 0 3199.81 3173.81 S14.00W 3300 ...... -I 15 -3299,79 3273,79 S14.00W 3400 1 0 "3399,77 3373,77 S I.OOW 3500 1 5 3499,75 3473.75 S 7,OOW 3600' i 20 3599,73 3573.73 S16.00W 3700 ! 0 3699.7! 3673.7~ SI4.00W 3800 0 45 3799,70 3773.70 S ...... 3900 1 0 3899.69 3873,69 S 3.00W 4000 ~ 0 3999.67 3973.67 S 2.05 S 3.78 S 5.69 S 7.63 S 9.45 S 11,53 S 15.01 S 16.54 S 18.28 S 8.81E ...... 9.05 s 76 51'5'4-"E .... 0.244 ............................. 2'.i9" 8,69 E 9,48 S 66 27 0 E 0,347 3,92 8,21-E .... 9,99 S 55 17 4' E'- 0.250 .................... ~;82' 7.96 E 11.03 S 46 ll 55 E 0.321 7.76 7,83 E. 7,41 E 6.88 E 6.71 E 6,68 E 6.62 E 12,27 S 39 38 59 E 0.149 ...................... 9'-5~ 13.70 S 32 44 17 E .... 0,341 ..............1-i'.6-~ 15.15 S 27 0 59 E 0.341 .......... 13,'~'i 16.44 S 24 5 10 E 0.301 15.12 _..- ............. 17.84 S 22 0 25 E 0.262 ........... 18. 19.44 S 19 54 54 E 0.035 - -4100 .....1 0 '--4099,66 4073,66 S 8,00W .... 20,02 S ....... 6,48'E .... '-4200 0 55- 4199.64-4173.64 $16,'OOW 21,67 S 4300-1 0 4299,63 4273,63 S20,OOW ....... 23,27 S ...... 4400 1--'0 -4399.61'-4373.61 S13.00W-' 24.94 S 4500 ! 0 4499.60 4473,60 S 5.00W 26.66 S ..... 4600'-'0-'50 .... 4599',58" 4573,58 S16,00W- 28,24'S ..... 4700- I 0 -4699.57 4673.57 S 9.0OW- - 29,81 S ...... 4800- 1 .... 0-A799.56-- 4773.56 S-'6.00W 31.54 S ....... 4900 1 0 4899.54 4873.54 S 7.OOE 33.28 S 5000 1 ~5 4999.52 4973.52 S 5100 1 0 5099.50 5073.50 S 5.00E 5200 1 0 5199.49 5173.49 S12.00E 5300 1 0 5299,47 5273,47 S19,00E ............................................... 2t.o5 s 17 57 8 E O.t2Z- ............ 6.13 E ...... 22,52'S 15--48-'52'-E ..... 0,143-' .. 5.61 E _ 5,12 E 4,84 E 4.55 E 4,21 E 3,g8 E .. 3.99 E 35.24 S 4.11 E '37,20 S 38,92 S 40,60 'S -- 23,94 S 13 :~.'" 17"-E ......... 0'~'101 ............... 25.46 S 11-36 17--E-- 0'122 ................ 27.10 S 10'-~8 2e-E ....... 0-;140 .............26'-'7~ 28.60 S 9' iO--O"E ....... 0.21? ................. 30. 0 s 8 2-21 E .....0.20- ........ 31.79 S 7 11 47 E 0,052 ~1.6C 4,46 E ~9,[8 5 6 ~2 [5 E 0,[22 ~8,9'~ ..................... 4.92 E 40,90 S 6 55 5 E 0.122 40,6~ ............................................................. COMPLETION REPORT MARCH MOBIt--'o'iL'-'-~O" ....................................................................... GWYDYR BAY SOUTH-NO, .... MAGNET.IC~F!ULT-I=SHOT- SURVE'Y .............................. RADIUS OF CURVATURE METHOD KB.ELEV. 26 FT. : ..................... DECLINATION 30 DEGREES___EAST _.~OMPUTED~.[qR~EASTHAN WHIPSTOCK._~SY___~F. M, LINDSEY S ASSOC. _ RECORD OF SURVEY ALL~CALCULATiONS PERFORMED BY I B M ELECTRONIC COMPUTER .............................. T~UE ................................. ' DOG-~EG -MEAs~ ..... DRIFT-'VERTICA[ ............. SUB .......DRIFT ............. TOTAL' COORDINATES ........ ~--L-O $'---~-~'-'E--S .... ~EVER-iTY SECTION "DEPTH ANGEE ......... DEPTH ....... SE~ .......... DIRE~ DISTANCE ................ ~NGEE .... DEG/IOOFT ............ .................. D M ............................. DEG. D M ............................................................... .......... 0 ..... o .... 0 ...... o,o~ ..... =26'~o0-~N O;-OOE ......... o,O0-~S .......... 0-~o0 W .......... o,o0~$ ...... 0 ..... 0 ...... O-W ...... o-;000 ................... ..... 100 0 0 ........ 100.00" 74,00 N O.OOE ........ 0.00 S 0.00 W ........ 0'00 S ......0 ..... 0 0 W ............ 0.000 .................. ..... 20'0 ..... 0 ..... 0 = 200.00 17~.00 N~OeOOE 0.00 S 0.00 W 0.00 $ .... 0 0 ..... O-W ......... 0.000 .......... ~ ......... 0~0~ ....... 300 ..... 0 ~0 .... !299.99 ~73.99 N23.OOE-' ....... 0.14 N 0.02 E ....... 0.1~ N 11 30 0 E .... 0.218 ......... .... ~00'-'0 lO .... 399.99 373.99 N23.OOE .... 0.~! N ...... 0,1¢ E - 0.'¢~ N 19 1! 19 E ............ 0,000 ..................... 500--' 0'-30 499.99'- 473.99- N32.00E 0.93 N 600 ....... 1 .... 0 ..... 599.98 573.98 N~.OOE'' 1.96 N ?00 1'50 '-- 699,95 673.95 N66.00E ....... 3.37 N 800--[-15 - 799.92 773.92 N72.00E .... ~.3~ N ....... 900 .... ~ ...... 0 ..... 899.90'- 873.90 NSO.OOE ~.8~ N lOOO '0-35 .... 999.89 973.89 N~8,00E 5.61 llO0 ...... 0~30-'1099,88 1073.88 N69.OOE- 5.91N 0.~1 E .... 1.02 N 23 55'~12 E ....... 0.350 1.21 E ........... 2.31 N 31-49" 9"-E ......... 0,573 ................. 3.23 E ......... z~.67 N 43 46 41+ E .......... i.242 .................. -3.32 5~75 E .... 7.20 N 52-56-~3'E ......... 0.599 ........ ~-4-~-2~ 7.65 E ..... 9.0~ N 57'~9 .... [-'E 0'279 8.88 E-' - ~0.'40 N 58 37 4~ E ........ 0'477 .................... ' ~7 9.69'E--' 11.35 N 58 37 5 E ...... 0.191'-~ -5;75 ....... 1200 ..... O"'-IB i199;88 .... 1173,88 N~5.00E ..... 6,26-N - - 10'23'E ........ 12.00 N--58 31~-50-E -'0.260 -6.09 ..... 1300 ..... 0 0 ......i299.88 1273.88 N O.OOE .... 6.46'N .... 10.32 E ......... 12,I7'N-57 56 31 E ......... 0.250 ........... .... l~.-O0--'O-'O .....1399,88- i373.88 N-O.OOE'--- 6.46 N .... 10.32'E ........ 12.17 N 57-'-55--31--'-E ...... 0,000 -6.29 ---15'00-~ 0 .... ~99'-'88 .... 1~73~88 N O.OOE ......... 6.46 N .... 10,32 E ........ 12,17-N-57 '5'5'~1 E -'-0.000 -6.29 "-1600 ..... O-'0 1599.88 1573,88 N O.OOE 6.~6 'N'" 10.~2 E ....... 12.17 N 57 56'"~1' E ............ 0'.000 ............... 1700 -'0-- B---.1699.88 1673.88 S31.OOE ...... 6.47 N'- 10.37 E ........... 12.23 '-1800 ..... O- 0 ....~1799'~88 1773'88--S O'OOE ........ 6"40 N ....... 10.39-E .......... 12.21 N 58-22 '~ 1900 .... 0~ lO 1899.88 1873.88 N63.00W ...... 6.33 N 10.29 E 12.08 N"58-22 ~"E ...... 0'715 ..... 2000---0 10' 1999'88 1973.88 S42.00W 6.28 N XO.O1-E 11,82 N 57- 53 10 E ....... 0;207 .... 2100 .... 0 0 2099.88 2073,88' S O,OOW .... 6,15 N -" 9,96 E 11.71 N 58 18 ~3 E ...... 0.I70 2200 0 15 2199.88 2173.88' NSO.OOW .... 6,07 N ...... ~.80 E 11,5~ N-58 12 ~0 E ........ 1.1'61' 2300'--0-10 .... 2299.88 '2273.88 S 8.00E 5,9~ N- - 9.56 E- 11.25 N--58 .... 827-E .... 2~00'~-0-15 2399.88' 2373-'88 580.00~ -'- 5.67 N ....... 9.36 E ..... 10.95 N-58 ~7 ~l'--g--- 0-;~6~ -6.1i -5~9'] -5.5~ . RECORD Of SURVEY ...................................... ALL CALCULATIONS PERFORMED BY I B H ELECTRONIC'""COMPUTER .............. _ ....................... ~ ............ TRUE DoG '-LEG .... HEAS. DRIFT VERTICAL .... SUB DRIFT ........ TOTAL COORDINATES ..... C L-O"-S U R E S ..... SEVERITY ..... sECTION.. DEPTH ANGLE DEPTH SEA DIREC '-' DI STANCE .... ANGLE DEG/IOOFT ............. D'IS~"~'~'Ci ........... D ~ .................................... DEG. D ' M .... 5 .......................................................... "'5400 1"' 0 5399,46 5373.46 SIS,00E ......... 5500 0-50 5499.44 5473.44 $21.00E 5600 I 0 5599.43 5573'43 .... $26,00E __ 5700 0 50 5699,42 5673.42 S36.00E 5800 0 55 5799.~1 5773.4I 527.00E .... 5900 0 45 5899,39 '5873,39' S52,00E .. 6000 0 45 5999.39 5973,39 .... 6.i00 0 '55'-'6099,38 6073,38 --6200' 0'60-' 6199.37 -6173,37 S47,00E ....... 6300 0 30--6299.36 6273,36 S35,00E 6400 0 30 6399,36 6373.36 S27,00E ....... 6500 0 30 6699.35 6673.35 544.00E 6600 0 35 6599.35 6573.35 S33.00E ...... 6700 0 30 6699.34 6673.34 S18.00E 6~00 0 40 6799.34 6773.34 S2[.OOE ' 6900 0 45'- 6899.33 6~73.33 S[9.00E .... 7000--O' 45-'6999.32 6973.32 $37.00E 42.27 $ 43,80 S' 45,27 S 46,64 S 47,96 S 49,08 S 49,96 S 50.92 S 51.80 S 52.57 S 53.32 S 54.03 $ 54.77 S 55.63 S 56.59 S 57.75 S 58,91 S - '-7100 -'I 0 7099,31 .... 7073,31-- S O.OOE .... 60,~3 S . '-' 7200 1 0 7199,29 7173,29 S 4.00E' 62.07 S 7300- I ......0 7299.28 7273.28 Si3.00E .... 63,80 S 7~00 ! 15 7399.26 7373.26 S 7.OOE 65.73 S -" 7500 1 15" 7699.24 7473.26 S 2.00E 67.90 S -~ 7600 I ~0 7599.21 7573.21 S20.OOE-- 69.97 S - 7700- 1' 1~ ' 7699.19 7673.19 S22.00E - 71.9¢ S -- 7800 I 15 : 7799.17 7773.17 S16.00E 7~.00 S 7900 I 0 7899.15 7873.15 S13.00E 75.90 S 8000 1 15 7999.13 7973.13 S18.00E 77.79 S 8100 1 ' 0 8099.11 8073.11 S40.OoE 79.50 S -- 8200 I 0 8199.09 8173,09 S~O,OOE ..... '80,84 S 5.4~ E 4z.62 s 7 19 43 E ..... 0'070 ......................... 5.93 E 44,20 S 7 42 50 E 0.179 -~3.89 6.57-E ....... 45,74 $ 8 15 39 E 0,186 45,37 7.~9-E" 47.23 s 9 0 46 E .... o. ZO9 8.20 E 48,66 S 9 42 28 E 0.178 ~8.09 9.13 E ...... 49,92 S 10 32 13 E 10,10 E 50.97 S 11 25 52 E 11.20 E 52.14 S 12 24 44'- E 12,28 E ...... 53,24 S 13 20 19 E 12,95 E 5~+.15 S 13 50 21 E 0.343 ~9,22 0.105 ........ 50,.11 o,2~4 .............. 0,269 ...................... 52';00' 0.192 52.78 13.40 E 13.90 E 14,49 E 14,90 E 15,24 E 15,67 E' 16,2g E 16.75 E 54.98 S 14 6 26'"'E ....... 0.070 .................... 53"5'~- 55,79 s 14 25 58 E ........ o.i~S .................... 56,66 S 14 49 28 E 0,152 55,00 57,59 S 14 59 57 E .... 0,150 55,86 s ........ o. 59,84 S 15 10 46 E '" 0'085 5b.O0 61,11S 15 27 2 E ...... 0,235 ............. 59~i-6- 62,61 $ 15 31-25 E .... 0.779 16.81 E-'- 6.4.31 S 15 9-36 E ...... 0,070 ............... 66.04 S 14 59 5 E - 0,157 .... .... 68.00 s 14 50-28 E ---o"Tze~ ....... -6-6-~-oo- 70,14 s 1~ 31 ~7 E 0.~09 ............ 68;i--~' 72,2~ S t4 25 8 E -" 0'364 17.07 E 17,41 E 17,58 E- 17.99 E '- 18,74 E-- 19,45 E 19,94 E- 20.47 E 21,41 E 22.54 E-' 74,34 S' 14 36 19 E ,_ 76,52 S 14 43 50 E 78.48 S 14 43 29 E 80,44 S 14 44 37 E" 82.33 S 15 4 41 E _ 83.92 S 15 34 48' E 0.092 .............. 72~-Z3 0.131 74.31 0.254 0.278 ...... 78'.1'~ 0.423 ............... 79-"8~' o.ooo .......... 8i'i~ ....................... ' RECORD Of SURVEY ................................ ALL" CALCULATIONS PERFORMED BY I B M ELECTRONIC COMPUTER -; ........................ TRUE DOG LEG MEAS, DRIFT VERTICAL-- SUB ' DRIFT TOTAL COORDINATES C L 0 S U R E 5 '- SEVERITY ......... 5ECT-IO-~- DEPTH ANGLE DEPTH SEA DIREC ........................ DISTANCE ANGLE -DEG/iOOFT .............. DISTAN~ ................... D H ............................ DEG~ D-N $ ........... ................................ . ............................................................................ /. 8300 ! 0 8299.08 8273.08 S37.00E 82.20 S 23.62 E 85.53 5 16 2 '7 E 0.052 ....................... 8'2";"5~- 8400' ! ...... O- 8399'-06 .... 8373,06 'S25~00E ........ 83.7O $ 24,52"E ........ 87.21 $.16'--19'51E ........... 0;"209 8.4.08 -'-8500' 0'-45 8499.05 .... 8473,05 $12.00E 85.14 $ 25.00 E .......... 88.74 $'-16 22'--5-E .......... 0-,289 .......... §"~-'~ 8600 0 30 8599.05 8573.05 S24.00W '86o21S 24.89 ~ ..... 89.73 $ 16 6 2'6-E .... 0o354 ........................ 8700 0 55 8699.04 8673.0~ S~5.00W 87.34 S ..........2~.37-E ...... 9O.68 5 15 35 39 E ...... 0.43'$ .................. 8'7;73'- 8800 .....0 55 .....8799,03 ...... 8773.03 SZ7.00W ......... 88.80 S ........ 23'66 E .... 91.90'5-14"-55 Zl"-E ......... 0';'0~ ..... ~ ...... -~'~.I~- 8900 0 45 8899.01 8873.0~ S3.0,-OOW 90,09 S 9000 0 55 8999.00 8973,00 $ 8.00W 9~.47 S 9100 ! ...... O' 9098.99 ..... 9072.99 S"I.OOE ' -93.15 S 9200 1 15-"9198.97 9172.97 S3A.OOE _ 9300 ! 10 9298.95 9272,95 $36.00E _ 9400 0 ~0 9398,93 9372,93 S3A.OOE 9500 ~ 5 9~98,92 9~72,92 S33.OOE 9600 ~ ' 5 9598.90 9572,90 S27,00E 9700 ~ 0 9698.89 9671.89 531.00E - 9800 ~ --0' 9798,87 9772,87 $32,00E '- -9900---~ -'-0' 9898,86 9872,86 $~6,00E 94,99 $ 96.72 S 98,04 S 99,32 S .. 100,97 S 102.56-S 104.05 5 ....... 105,57 $ 22.96 E 92,97 S 14 18 5 E 0,183 90.45 22.49 E 94,19 $ 13 48 54 E ...... 22.39 E ........ 95.80 $ 13 30-56'E ......... 0.1'77 .................... 93*-5;'0-' 22.97 E 24, 18 E 25.10 E 25.95 E 26.90 E __ 27,78 E 28,69 E 29.54 E 109,63 S 15 38 0 E 0,105 97.73 5 13 35 40'E ............. 0,838 ................ 99.70 5 14 2 14-E ....... 0'089 ................ 97-;-i6- 101,20 5 14 21 44-E ........ 0-.500 ................. 9-8~-:~- 102.65 $ 14 38 36 E -'0.42~ ................... 104,49 S 14 55 10 E ..... 0~I14 ................. 10'1','-3-~ zo6,26 s 32 E .......... o,zz ..................... -i0000-- 0 ....30 ...... 9998.85-9972,85- S37.00W ......... 106.81--S ..... 29,42- E .... i10.79 5 15~-24----5 E 0'-6-20 1'07.28 10050 0 40 10048,85 10022,85 558,00W 107.16 S- '- 29,05 E ...... 111,.02 S 15 10 -6'-'E ..... 0,657 .......... 107'"6'i~ PRECEDING SHOTS' ARE FROM THE GYROSCOPIC SURVEY OF 2/05/75 ................................. FOLLOWlNG"$HOTS ARE EASTHAN WHIPSTOCK MAGNETIC MULTI-SHOTS ........................ 10100 .... 1 0--10098,84 10072*84-' S76,'00W--- 107.44 S -- 28,38 E ....... 111.13 $ 14 47 51"'E ........ 1~001 ...........-107-;-8-9' 10193' -1--20 10191~82 10165,82 S63,00W' 108,10 S 26,60 E'- i11.33--5-'13 49-38 E - - 0.523 10~52 10286 1 10 10284,80 10258.80 "$66.00W .... 108,98 S 24.77 E 111,76 5'12 48 17 E - 0,193 ............. 109'~'37 10380 -1-10 10378,78 10352.78-- S60,OOW 109.85 S ...... 23.06 E ....... 112,25 5-'11--5i 19 E --0;130 110.2~ ..................... RECORD OF SURVEY ALL CALCULATIONS PERFORMED BY I B M ELECTRONIC COMPUTER . T~UE DIREC MEAS~ DRIFT VERTICAL SUB DEPTH ANGLE DEPTH SEA TOTAL COORDINATES 110,83 S 112,27 S I14,77 $ 115,0~ S 121,57 125,34 $ I29,~1 $ 153~62 S 137,57 S'' 144,42 S 150~66 $ 153,71 !56,77 1~9,31 S 161,78 S 163,86'S !0~74 I 5 10472,76 i0446.76 $58.00W 10567 I 25 !0565,74 !0539,7~ $34,00W 10660 1075~ 2 lO 10751,64 10729,~4 $!I,OOW toe4? 2 15 10845.57 10819,57 S15~OOW II0~2 2 ~0 11030,39 1!00~,39 S15,00W 11125 2 ~0 11123,29 11097,29 SX2,00W 11219 2 15 11217,21 1119I~21 $12,00W !I912 2 15 1!3!0~t4 1128~1~ 819~00W ~1406 ~ 0 I1404,07 11~78.07 $14~00W 11499 2 0 11497~0I !1471,01 11592 2 0 11589~96 11563,96 $22,00W !16~5 Z 0 1~682,90 11656,90 SIT,00W 11778 2 0 !1775,8~ 11749,8~ $22~00W 11881 I 45 11858,80 11832,80 S20,OOW I!~54 1 55 11951,75 11925,75 $47,00W 12077 t 40 12074~6g 12048,69 $48,00W !64'.50 FEET AT S 0 56 2 E BOTTOM HOLE CLOSURE .. ....... DOG LEG C L O S U R E S SEVERITY -'-SECT[ON- DISTANCE ANGLE OEG/1OOFT .... D[$TANC( 11~90 S 10 58 20 E O,ll5 ....... 111'~17' __. 114,05 $ 10 7 33 E 0,763 112_~58 116,3~ S 9 2~ 25 E 1,098 115.07 119,46 S 8 51 2 E 0,258 ..... 122,83 S 8 13 17 E 0,190 121,84 - 126,46 S 7 37 5'~-"E ......0'438 125,-60" 130,39 $ 7' 2 7 E 0,410 I29~65 _ 1~4~45 S ~ 2~ 16 E 0~150 133~8~ 1D8,~9 $ 5 5~ DS E '- 0~447 141,69 S 5 19 23 E '- 0,295" 1~1,28: 14~,93 S 4 ~8 39-E ' 0,318 I44,60 148,01 $ 4"24 21 ~ 0,000 147~7~' X51,0! & 3 5~ 13 E 0,300 153~99 S 3 27 24 E" - 0,188 ........... 153,84- 159,47 S 2 35 53'E '' 0,~09 --- 159-~' 161,87 S' 1 58 52 E 1,044 ............16!,8~ 163,90 $ 1 10 27 ~ 0,09? ....... 163-~89 16~,~0 $ 0 56' ~ E 0,~7% ...... . 164.50 ......................................... ....................................... ,_ . . ........................... ........................... ... 21 ~48 E 20,05 E 19~01 E 17,56 E 16.79 E 15,97 E 14,95 E 14~!2 E 13,1~ E 12,15 E- 10~D6 E 9~28 E . 5~59 E ~.35 E 2,68 E DEPTH AND OTHER DATA FOR EVERY 'EVEN !00 FEE~ OF SUB SEA DEPTH, ..... .TRUE i~.EASUI~ED VERTICAL SUB ND-TVD VERT[CAL "- DE:PTH ...... DEPTH ,SEA DIFFERENCE CORRECTION [$25 1725 2026 2126 2226 126J- 226. 326. 300 0 0 4264 400 ' 0 0 526* .500 0 ...... 0 526~ 600 0 0 72~, 700 0 0 826, 800 0 0 !026e 1000 " 0 0 1126e 1100 0 0 1226~ 1200 0 -T !~26~ I300 0 0 1~26~ 1~00 0 0 1626e 1600 0 0 1726e 1700 0 0 I826, 1800 0 0 1926 ~ 1900 ..... 0 0 2026, 2000 0 0 2126, 2100 .0 2226, 2200 - 0 0 TOTAL ¢OORDXNATE$ ......................................................... 100 0 ......... 0 200 0 ..... . 0 ............ 2~30 N 1.58 3e69 N 3~96 ~92 N 5~58 N 6~3~ N 6~46 N 6~6 N 6,~$ N 6,~ N 6~9 N 6~36 N 6~23 N' 6,~ N 8 ~07 E 9 ~08 E 9,88-~E- 10~30 E I0.32 E I0~32 E 10.32 E 10,32 E 10,39 E 10,39 E lO,21 E 9e98 E 9496 E ..................................... )'- 9471 E ............................................ ......... 2326 2~.26 2~2~ 2626 2726 2825 2926 3026. 3125 3226 3326 3~26 ~26 2326. 2300 ....... 0--- 2~26, 2~00 0 2526. 2500 0 2626. 2600 '-- 0 2726. 2700 0 2826. 2800 - 0 2926.' 2900 -' 0 . _ 3026. 3000 0 3126, 3!00 0 32264 3200 0 3326, 3300 0 3426. 3400 0 3526. 3500 0 0 5.86 N 5.63 N 5,21N 3.63 N 2,25 N 0485 N 0,76 S 2.50 $ ~,24 S 6e23 8,09 $ 9.95 $ 9e55 E 9*2'6 E .......................................... 9.18 E ................ 8e96 E ......................................... 8.9~ E ................................. 8,76 E ......................... 8,8~ E ........................... 8.79 E 8,10 E 7,94 E 7,76 E --MEASURED DEPTH AND OTHER DATA FOR gVERY EVEN I00 FEET OF SUB SEA TRUE ......... ... ~EASURED VERTICAL SUB ND-TVD DEPTH DEPTH SEA DIFFERENCE VERT I CAL c o ~ ~ ~ c T ~ o ~.. i.;. ........ ~ o T~A'c ii .';i c o o ~ ~ ~ ~ A T ~:iS'".iYT" ;'_.' ~ ~L~T _T:T';27_~i..i_-_L-2 3626 3826 4026 4126 3626, ..... 3600 ........ 0 ............... 0 ............. 12,09 S 3726. 3700 0 0 ....... 13,93 S 9826, 3800 O 0 15.37 $ 3926, 3900 ...... · 0 ....... 0 ............. 16~99 $ ............ 4026, 4000 0 0 18,73 $ . 4126, 4100 0 0 20.46 5 7e25 E 6~79 E 6,71 E 6e60 E 6.41 E 4226 4226, 4200 0 0 ............................... 22'07' '$ ...... 6.01 ........ 5727 ..... 5726, 4326 4326. 4300 0 0 ~426 4426, 4400 0 0 4525 4526. 4500 4'626 ....... 4626. - 4600 4726 .......... 4726. 4700 ._ 4826 .... ~826, 4800 0 0 4926 .......... 4926~ ~900 ' 0 ...... 0 ........ 5026 5026. 5000 .... 0 0 .... ....... . 5~26 5126~ ~00 0 0 5~27 5226. 5200 5327 5326. 5300 5427 ..... 5426~ 5400 1 0 5527 5526e .... 5500 5627 .... 5626. 5600 - i .... 0 5700 1- - 0 23e70 25~38 27.10 28,61 30,25 5~46 E 5.0Z E 4,79 E 4~45_~E ................................ : 4e14 E 3,94 E 33,74 35,79 37,65 39,37 ~2,71 ~5~67 46s96 4e12 E _ 4~25 E ~56 E 5,07 E 5,5~ E. 6,07 E 8,.78 E ...................................... ........................ 7.62 E 5827 ............ 5826, ....... 5927' 5926. 6027 6026, 5127 6126, .... 6227 6226. ..... 6~27 ...... 5800 .......... l ............................. 0 ..................... 48.32 $ ....' ....... 8,41-E ................ 5900 I 0 49,30 S 9s40 E 6000 0 ~ -1 50,21 S 10,35 E 6100 1 1 51,16 $ 11,53 E 6200 i " 0 ..... 52,01 6300 : 1 0 52,77 $ 13.08 E 6427 ............ 6426, 6400 ........ 1 .......... 0 6527. 6526, 6500 0 ' ' 6627 .... 6626, 6600 - I 6727 ......... 6726. 6700 1 ...... .-- 0 6827 6826. 6800 1 0 6927 ...... 6926, 6900 ....... I .... 0 7027 .... 7026. 7000 - 0 53.52 54,20 55. O0 55.85 56,89 58,08 59.21 13.51 E 14,06 E 14.63 E 14.98 E 15.35 E ....... ' 15.79 E 16,47 E TOTAL COORDINATES MEASURED DEPTH AND OTHER DATA FOR EVERY EVEN 100 FEET OF SUB SEA DEPTH, NEASURE:D DEPTH" .TRUE VERTXCAL SUB ND-TVD DEPTH SEA DIFFERENCE VERTICAL CORRECTION 7127 .... 7126, 7227 7226, 7327 7326, 7427 7426, 7527 .... 7526, 7627 7626, 7727 ......... 7726, 7827 ............ 7826e 7927 7926. 8027 8026. 5127 .... 8126~ 8227 8226, 8327 8326, 8427 .... 8~26, 8527 8526, 8627 8626, 8727 8726, 8827 8826, 8927 8926, 9027 9026, 9X27 9126. . . 9227 9226, 9327 9326. 9427 9426, 9527 9526, . 9627 9626. 9727 9726. 9827 9526. _ 9927 9926. 7100 7200 1 ~' 0 7300 0 7400 7500 X ........ 0 7600 0 -1 7700 7800 1 " O~ '. 7900 0 8000 I 1 60.79 $ 62,54 $ 6~. 27 $ 68.48 $' 70~8 $ 72~8 $ 74.55 S 76,37 S 78.33 S 8100 8200 8400 8500 8600 8700 8800 8900. 9000 9100 9200 9300 9~00 9500 9600 9700 9800 9900 I 0 ............ 79~86 S'" 21~72-"E ! 1 0 1 I 1 1 1 1 1 . 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 81.20 82,59 85~fi5 87,73 89.18 91,90 93,63 95.~8 97,14 98.32 99.75 102,96 105,99 22,85 E 23e89 E 2~'~70 E 25.05 E 2~,78 E 2~.19 E 23~47 E 22,80 E- 22,44 E 22,~3-E 23~30 2~,~8 E 25,'29 E 26,22 ......................................... 27,13 28,03 E -. 29,67 E" I0027- 10127 10227 i0327 !0~27 10527 10026, 10000 1 10126, 10100 1 10226, 10200 -- 1'- :' 10326. 10300 1 10426, 10400 1 10526, 10500 I 107.00 107,57 t09,3~ iI0,3~ !II,55 29.25 E 27,90 E 2~,91 E 2~01 E 22.25 E 20.65 E MEASURED D~PTH AND OTHER DATA FOR EVERY EVEN i00 FEET OF SUB SEA DEPTH, TRUE NEASURED VERTICAL SUB MD-TVD DEPTN DEPTH SEA DXFFERENCE VERTICAL ¢ORRE(TION TOTAL COORDINATES 10627 10727 10827 10927 11028 11128 11228 11328 11728 11828 11928 12028 10626, 10600 I0726, 10700 10826, 10800 1 10926~ 10900 11026, ti000 1 i1126, 11100 2 i1226, 11200 2 11326, 11300 2 I!426e 11~00 2 11526, 11500 2 11626e I1600 2 I1726e 11700 2 11826, 11800 2 11926, 11900'- 2 12026, 12000 -' 2 113,74 117,08 120e81 124,79 !29,21 133,74 137~90 141.67 161el~ 18,56 1~,02 14e9~ 12~94 11,97 llelO 8,81 7,59 3,81 E INTERPOLATED VALUES FOR EVEN 1000 FEET OF NEASURED DEPTH. TRUE NEASURED VERTICAL $U8 .DEPTH DEPTH 5EA. TOTAL COORDINATES '- 5,41N 6028 N 0,31 S 18~28 $ 4'9,96 S 58~91 77,79 $' 10,02 8,84 6062 10,10 16~28 20,~7 999, 9'79, t999~ X97~, ' 2999J 2973, - 3999, 3973, 79990 7973, ..... lO00 3000 4000 5000 '- &O00 7000' ~000 ...... 9000 ~' ...... ~0000 ........ 11000 12000 8999, 9998, 9972, ...... I06e81 $ 29042 109980 10972, 127,97 $ 16e32 11997, !I971e 162,81 . . CHECK SPACING TAPEe~PRE$$ CARRIAGE MEMORANDUM DEPARTMENT OF NATURAL RESOURCES Division of 011 and GRs TO: . O. K. Gilbreth, Jr.~~ Di rector THRU: Hoyle H. Hamilton Chief Petroleum Engineer~,~- FROM. John C, Miller Petroleum Engineer State of Alaska DATE: April 23, 1975 FILE NO: , / \ TELEPHONE NO: suBJEcT:Field Trip Report - BOPE Test on Mobil - Gwydyr Bay South No. l, · North Slope. JanuarY 16, 1975 - I departed Anchorage at 1:45 PM by commercial aircraft for D-eadhorse~,' 'a-6r~ing at 4:45 PM. The temperature was -42°F with a 30 knot wind resulting in a -lO9°F chill factor. The purpose of my trip was to check blow- out preventer equipment and inspect drilling operations at the captioned explor- atory drilling well. Bud A~rahams, Mobil drilling foreman developing the West Staines No. 2 well location, met me and drove me to Parker Rig No. 92 on the Mobil - Gwydyr Bay South No. 1. I met Ken Sullivan, Mobil drilling foreman on the well, and we visited over supper. They had been plagued with mechanical rig problems. They were overhauling one engine and were running on two. They planned to start the BOP test the next day after dulling the bit that was drilling. ~anuary 17., 1975 ~ The drill string was pulled ou~t of the hole and the BOP test {ias star~'~d a't~i-l.30 AM. The tmmperatur~ was -37F with a 25 knot wind and -96°F chill factor. Work on the West Staines No. 2 was suspended due to 40 knot winds and zero visibility at that location. The BOP accumulator was used to provide the test pressure. With a test plug in the drilling spool and the pipe rams closed, satisfactory 5000 psig tests were obtained individually on the pipe rams, kill line valves, choke line valves, choke manifold valves, and chokes. The hydril was tested at 2500 psig and then the blind rams at 5000 psig; both without leaking. We experienced some delays when the test line froze and had to be thawed, and again when accumulator pres- sure was lost through a leaking union. The crew picked up the kelly. A testa eonnection and the test pressure line was installed below the kelly valve. The lower kelly valve was tested at 5000 psig. While applying 5000 psig below the closed kelly cock the test connection split, so the kelly cock was tested from the topside through the rotary hose at 2500 psig without leaking. The two floor valves were operated and the BOP's were actuated with the remote controls The tests were completed at 4:15 PM,. ' The well siqn, housekeeping on and off the pad, pits, berms, and other opera- tions were ~nspected and found to be in good order. I completed a "Field Inspec- tion Report" indicating all items were satisfactory. I left a copy of my report with Ken Sullivan at the rig, sent a copy to Fritz Schall, Mobil Drilling Super- intendent in Anchorage, and a copy is attached. I made plane reservations on the evening flight and hitched a ride to Deadhorse with a DoWell representative. I departed by Wien commercial aircraft at 6:50 PM and arrived in Anchorage at 9:30 PM. On this field trip I tested the blowout preventers and related equipment on the ~bil - Gwydyr Bay South No.. 1 Well. I also inspected the location and drilling operations. All items were satisfactory as indicated on the attached "Field Inspection Report". Attachment 02-001B (REV. 08-73) MEMORANDUM DEPARTMENT OF NAlnJRAL RESOURCES DIVISION OF OIL AND GAS TO: Thomas R. Marshall, Jr. Chief Petroleum Geologist State of Alaska DATE: FILE NO: April 7, 1975 TELEPHONE NO: FROM' John A. Levorsen '~iI ~-- Petroleum Geologist/ SUBJECT: Field Trip Report: Mobil Oil Corporation's Gwydyr Bay South #1 I flew by Wien Airlines flight #2009, on Saturday, March 29, 1975, leaving about 9:30 PM, to Deadhorse, for the purpose of witnessing a drill stem test of the Gwydyr Bay South #l well. A Mobil representative met me and two other men, and drove us to their drill camp. The following evening the test was begun at 8:06 PM, and it was concluded at 6:25 AM on Tuesday, April l, 1975. Personnel conducting the test, or participating in it, were Chris Cooper and Jack Meyer of Mobil, Steve Reyburn and Kris Lincoln of North Star Engineering, Dan YOung of National Tank Company, Steve Ede of Chemical and Geological Laboratories, and Marion Hardesty of Halliburton Services Company. Operationally the test was successful -- it was properly run, equipment performed well, and the results appear reliable. Disposal of the hydrocarbons produced was by burning in a flare pit. Test results and back-up data are given on the attached report. The test tool was pulled out of the hole, and three of the four pressure charts obtained were read in the field before I left. · Results of the fourth chart were obtained after returning to Anchorage. I and two other men were driven by a Mobil representative to Deadhorse, and I returned to Anchorage on Wien flight #44, arriving about 12:30 AM, Wednesday morning, April 2, 1975. 3AL:cha F~rm No. P--4 R~V. 3- I-?O STATE OF ALASKA OIL AND GAS CONSERVATION COMMll-i'EE MONTHLY RE!PORT OF DRILLING AND WORKOVER OPERATIONS o,L [] o,. E~ oT.-. Wildcat WELL WELL NAME OF OP]gP, ATOR Mobil Oil Corporation ADDRESS OF OPERATOR P.O. Box 5444, Denver, CO 80217 4. LOCATION (~F WELL 210'N and 2140'E from SW corner Sec. 8-T12N-R13E UM, Alaska SUBMIT ~ DLrPLICATE ~-AP! 'NUMERICAL CODE 50--029--20149 6 LEASE DESiGIxlA'FION AN'D SEIRIAL NO ADL47468 T IF INDIA~, ALOTTEE OR TRIBE NAME 8. L'NIT F.m~M OR LEASE NAME Mob±i-SOCAL 9 WELL NO Gwydyr Bay South #1 10 FIF_J.J) ,A_ND POOL, OH %VILDCAT Wildcat I1 SEC, T., R., M. (BO'I~I'OM HOI~E OB.mCTIVFb Sec. 8-T12N-R13 UM 12. PER.MIT NO 74-55 REPORT TOTAL DEPTH AT END OF MONTH. CYIA. NGES IN HOLE SIZE, CASING AND CEMENTING JOBS INCLITDING DEPTH SET AND VOLUIVIES USED, PER.F'ORATIONS, TESTS ~ H.ESULTS FISHING JOB~ JUNK LNT HOLE A_ND SIDE-TRACKED HOLE A~TD ANY OTHEi~ SIGNIFICANT CH. ANGE.S IN HOL~ CON'DITIONS 3/31/75 12237' TD - 10,143' PBTD. Testing Cored 12,217'-12237' Recovered 20' Ran Schlumberger DIL, BHC Sonic, FDC-CNL and Dipmeter. Ran velocity survey and Directional Survey and took sidewall cores Plugged back to 10,320' w/125 Sx Class G cmt Ran 34 joints 26# LTC 7" casing (1424.75') from 8881'-10,306' and cemented with 300 Sx Class G cmt 18% salt Cemented 208' of drillpipe and liner setting tools from 8653'-8711'. Washed over and recovered fish Ran Eastman multi shot directional survey at 12,077'. At 12074' bottom hole location is 164.5' South and 2.7' East of surface location. Closure is 164.5' South 0° 56' East. Perforated Sadlerochit Sand 10,180'-10,194' and tested water. Squeezed perfora- tions with 50 Sx class G cmt. Perforated Sadlerochit sand 10,076'-10,108' and 10120'-10,132' and testing. CONFIDENTIAL 14. I hereby certify ~ the fqre'going~ true and correct /"" / . ~/" ~. / , m,~rm~Z>f-/fp/~, ~<~;~-,. =r= Alaska Area Geologist n,~ NOTE ~R~oor! on thil form i~ ro~luir~d for eoch col~ndor monthI re~Ordl~$$ of the ~to~u$ of opero~ions~ ond most ~ filed In duplicot~ ~It~ the oil and gas con~ervotlon commiffee by the 15~ of the suoc~diflg mon~, unle~ Otherwise directed. Form P--3 Rt;V. 9-30-69 Submit "Intentions" in Triplicate & "Subsequent Reports" in Duplicate STATE OF ALASKA OIL AND GAS CONSERVATION COMMITIEE SUNDRY NOTICES AND REPORTS ON WELLS (Do not use this form /or pruDosals %o drill or to dccDcn Use "APPLICATION 'FOR PEtL%IIT-L'' ~for snell 'prol~osals.) .... _~50-029-20149 $. I.J:i~$E DESIGNA/I'ION A. ND SERIAL NO. ADL 47468 Wildcat :L NAME OF OPERATOR, 3. ADDRESS OF OPERATOR P.O.'Box 5444~ Denver Cole 80217 4. LOCATION OF %VELI, ^t ,u~r,,~, 210 ' Sec. N & 2140' E from the SW corner 8-T12N'R13E, UM, Alaska 13. ELEVATIONS (Show whethe~ DF, RT, GR, e%c. 25' (D.F.) Check Appropriate Box To indicate Nature of Notice, Re 8, UNIT FAP~M[ Ot{ LEASE NA1ME Mobil-Socal 9. 'WELL NO. Gwydyr Bay So. ~1 10. FIELD A2qD POOL, Ot,~ WILDCAT Wildcat 11. SEC,, T., 11., BI., (BO'i~'O.M HOI~E OB.IEC~I'IVE ) Sec. 8-T12N-R13E, P EIL%II T ~N~O. 74-55 )oft, or Other Data NOTICE OF INTI:NTION FRACTURE TREAT __i MULTIPLE COMPI,ETE SHOOT OR ACIDIZE }--i ABANDONS REPAIR ',','ELL [ } CHANGE PLAN8 i Other) 8UBSEQUENT RI~PORTOF: WATER SHUT-OFF { 1 REPAIRINO WELl. rRACTt'~E TR£AT~£NT ALTERING CASING SHOOTING On ACIDIZINO ,} ~ ABANDONMEWTe (Other) (NOTE: Report results of multiple completion on Well Completion or Reeompletlon Report and Log form.) 15. DESCRIBE PROPOSED 0R C0.MPLETED OPERATIONS (Clearly state all pertinent details, and give pertinent dates, including estimated date of starting any proposed work, Recommended testing and partial completion procedure is attached. 16. I hereby, certify/hat the foregoing is true ~nd correct TITLE Area Engineering Supv. (This space for State otBse use) APPROVED By '~~. CO.~DITION5 OF APPF~AL, TITLE Se~ Instructions On Reverse Side CONFIDENTIAL ~CONF IDENT IAL GwydYr Bay South #1 Testing and Partial Completion PROCEDURE 1. Set a cement plug in open hole with top at 10,280'~. 2. Run 7" O.D., 26~/ft., S-95, LT&C, liner with shoe at 10,270'±. The top of the liner should be above 8900', so that F.O. collar at 8999' is covered. Cement liner with class "G" cement with 18% salt. 3. Wait on cement 24~ hours. Run correlation log while waiting on cement. 4. Perforate interval 10,166'-10,180' (Sonic log depth - run ~3). 5. Run in hole with packer test assembly. Set packer at 10,116'± and attempt a drill stem test. 6. Run in hole with a 7" "Easy Drill" 'retainer or bridge plug, set at 10,150'±. If interval 10,166'-10,180' is not oil productive, then squeeze off the zone with cement.- 7. Perforate intervals 10,062'-10,094' and 10,106'-10,118' (Sonic log depth - run ~3). 8. Run in hole with packer test assembly. Set packer at 10,012'± and attempt'a drill stem test. 9. Spot diesel across the perforations and 150 feet above perforations.. 10 Run in hole withe .~ "~asy' DriLt' retainer Or bridge plug, set at9,962 ±~. Cap with cement. 1!. Run drill pipe with packer and F. O. Collar opener. Open F. O. Collar at 2798'. 12.' Cement '9-5/8" casing from 2798' to 2500'. 13. Run temperature log. 14. Cement with 50 sacks of cement from 2850' to 2700'. 15. Wait on cement 12-24 hours. 16. Run drill pipe with packer and F. O. Collar opener. Open F.O. Collar at 2379' then set packer. 17. Flush and clean 9-5/8" x 13-3/8" annulus with water l~t is displaced and cleans up. -2- ONFiDENTJAL 18. 19. Place "Baroid Arctic Casing Pack" in the annulus of 9-5/8" x 13-3/8". Release packer and immediately close F. O. Collar. Displace inside of 9-5/8" casing from 2350'~ and above with diesel. 20. Place X-mas tree and seal all annulus with valves and bull plugs. P. K. Paul 3/5/75 ,_~ ~0NFIDENTIAL -'~ Gwydyr Bay South #1 Testing and Partial Completion ' ',~ i ,.' ~L~ ! ~:'~I /Bridge Plug (Step. 10) 7" Liner Top i'J[ ] [ [' '~ ~il / ' ~ K-q, -~-~,F.~.'. ~ · 8999' k~' ;','": [kl? N",!~---~--~. "-.,.~~ Spot Diesel (Step 9 ) lO0S2, ~"--.~'. !~~----~-~(lO,OS~, - zo,og~, ) · l,_k~'" - ~- ' x' '~ ~ ~' .~-~-~--.-, ............. (Z0~Z06~ - Z0~ZZ8~ ) ' ~[~['~~~-~ Bridge P!~ (Steo 6) 7" sh~ ?~;-.;:-[:~'-:'..,.~.~ ~ Perfo~te 10,166~ - 10,180' '(Step ~) ~ 10270'+ xkQx~f~',?~%~'.,~~ 7" ~er: Top ~ 8.900' - , sh~ ~ 10,270'+ ....... ~~ ~ ~C~t Plug w/top ~ 10,280 ' + (Step 1) . ~ , t~ T.D. ~ Displace With Diesel (Step 19) · F.O. Collar Baroid Arctic Casing Pack (Step 18) "'" 13-3/8 2744' ~ h~/~//.Z~'~ C~nt ~side 9-5/8" c~i~ f~m2850 ' -2700 ' (Step !4) ~.0.~ :7~8,c°~z~ ' : ~ ; - CO! FiDF.:iqTIAL (Step 2) P. K. Paul 3/7/75 ~KA )N COMMI'lq'EE DRILLING )ERATIONS o,~ ~ o,, []] o~r.~. Wildcat WELL __ WmLL ~'. NAME OF OPERATOR Mobil 0il Corporation 3. A'BDRESS OF' OP]~LA. TOR P.O. Box 5444, Denver~ CO 4. LOCATION OF WFLL 80217 210'N and 2140'E from SW corner Sec. 8 - T12N-R13E UM, Alaska SUBMIT EN DUPLICATE ~5 API NI/MERICAL CODE 50-029-20149 6 LEASE DESiGNA~ON AND S~IAL NO ADL47468 IF INDIA~, AL,OTTEE O]~ TRIBE NAME 8. L~.'IT FA_R~ OR LF. ASE NAME Mobil-gOCAL 9 WELL NO Gwvdyr Bay gouth Hi 10 FI~J,~ ~D POOL, OR %VILDCAT Wildcat I1 SEC, T., 1~,, M. (BO'I'TOM HOLE O B,rF, C'T Pr'E) Sec. 8 - T12N - R13 UM 1~. PgRMIT N'O. 74-55 13. REPORT TOTAL DKPTH AT END OF MON~'I~. C~.NGF.,S IN HOLE SIZE, CASING AND C~_~ENTING JOBS INCLUDING DEPTH SET AND VOLI~/IES USED, PERFORATIONS. TESTS A_NDRESULTS FISHING JOB~ JUNK IN HoLE A_ND SIDE-TRACKED HOLE ~MD ~Y OTHER SIGNIFICANT CH. ANGES IN HOL~ CONDITIONS. 2/28/75 Depth 11,815' Drilling 8 1/2" hole Set 9 5/8" casing @10,053'. Cemented around shoe with 200 sacks, held 1200 psi O.K. Cemented through full opening port @8999' with 700 sacks, held 1500 psi O.K. Drilled out cement and tested f.o. ports w/600 psi, O.K. Ran directional survey, cement bond log and temperature log ~106076' Survev al0,050' - TVD 10048.85'. South 107.16', East 29.05', closure 111.02' S15 10' 6"E. Cores #3 through #10 10,078'-10,232' Rec. 85' DST #1 10,053' - 10,105' Ran Schlumberger DIL and Sonic logs 010,636' Deviation @10,861', 2 1/4© S 20°W' 011,071'_ , 2 1/2© S 2° W Core #11, 292-11,352' Recovered 60'. CONFIDENTIAL CONFIDENTIAL 14. I hereby cer~iiy~//' the forT.~ing ~ ~e ~ ~ 3/3/75 ~, .~'~~ =r~ Alaska Area Geologist m,a~ SIG~ NOTE--Re~ort on thi~ form is required for each calendar ~nth~ regardless of the status of operations, and must ~ filed In duplicate with the oil and gas conservation commi~ee by the 15~ of the suec~ding mon~, unle~ Otherwise directed. Operator Alas~ _~-;Oil and Gas Conservation Commit Field Inspection Report '~ r ~.~ Well Name & No. - ..... "..~-.'!.. Drilling Permit Number Inspected by Operator's Rep, Contr. Rig No._ ........ Satisfactory Yes No () () () () () () () () () () () () () () () () () () Item Satis factory Yes No 1, Well Sign ( ) ( ) 2, Safety Valves-Floor (-) ( ) 3, Safety Valves-Kelly ( ) r~ ~ 4, Safety Valves-Subsurface ( ) ( ) 5, BOP Closing System ( ) '~: ( ) 6, Remote Controls (). ( ) 7o Drilling Spool-outlets (). ( ) 8, Flow Lines ( ) ( ) 9, Kill Lines ( ) ( ) ( ) t0, Manifold Chokes ( ) ( ) Item !1, Manifold Pressure Test i2~ BOP Pressure '['est 13, Reserve Pit 14, Pit Berm .i5, Location Berm 16, Fuel Berm 17, Operations off "PadTM 18. "General Housekeeping" 19, Abd, Marker' in pi_ace 20, Water Well covered Remarks Signed Date 1975 ~i! Oil Corpara~_ion Office P~uch 7-00.3 ~~age, Alaska 99510 P~: LO~{S 74-3.06 and 74-108 ou'~ in your letter-.rs of ,~.~-r 13 and l-~o~v~_~ 22, with ~2~ follc~ring ~.ipula~i~ns: !. B-.LadL~ .~ r~v~t of tundra or vegetative ~over is Urob~bited. 2~ I~ ~ sl%a!l be ~astruc+_~d for ~ ~-a~~~ ol~_ragtons ~~a ~ ir.c~ ~d~s~ ~£~ trails. ~?~se roads d~~ to the ~. Ice roads are not req~xed ~4~re there is vegetative co~ such as a!or~ river beds a~! gr.;e! bars. ~-~er April ~, 1975, the use of gr~m%d- contact vehicles shall be subject to terairati~m .wi~hin 72 hours of notifica-~ion by tho 5~ I-~0 equlp~" .... ~' sk~!l entar or cross active (open flcwir~) c,hanne~ of .~- -ba~~ses mud the bank(s) of ~.~ ~t~oourse shall not be }~a~ r~a~al shall c~ly be ~cm ~po~ (d~a~) bars of t~h~ %~-~se to the ~.~is~%r~. Joe cr£ w~ ~.ter !e%~l. P~=~;-~l shall oc~ in such a ~ that the wa~er flow of the wat~rco~r-~ shall ~t b~ re~nneled.,-blec~d or diverto~. 7~ S~~iled material shall ke plac~d in a ~~ ~h~reby water ~e sto~~ must be clearly mark~ as tD ~h~ na~ of ~y P~.b~! Oil ~ ~ ~-' ,40.~ por~ ~lOn Ja~.~u~ 9, 1975 Page 2 f~! material including = ~' .' s moc&gz!ed n%mterial must be re?oved from the floc~iptain prior to spring bre~up or ,>~y 15, 1975, whichever occars first. 1]_. The DePar-~nt of Fishand Ga~e, H~2oitat Protection Section, 1300.Co!lege Road, Fairbanks, Alaska 99701 (phone 452-1531), shall be notified at least 14 days prior to ccn~encem~dat of material far, oval ~ations smd also upon completion of operations. !2.¸ Free use of the n%~teria! is all~.~ed render the cond/tion that if the well is a daf hole, the material and the facility constructed wit/~ the martial will revem't to the state upon cc~.p!etion of operations. if t~he well is ca~ebie of production and ym_rmanent and exclusive use of the material is desired, t~he material must be purchased, p~m. suant to 1! AAC 76.40 and 1! DAC 76.500 of the N~terial S~%le Regulations undem~ material sale contract ADL-57594. ~n accounting of ~nematerial used for each construction fea.t~e (road,pad, etc.), bassi on inplace measurement at point of use must be fi!-edwith ~ne ce~pletion report. 13. Water supply, waste ~,eter. ~nd solid v~este disposal systems must be approved by the Division of Air and Water Quality, Depaz~nent of Enviror~nha! Conse~zation. 14. 15. The director ~ey recfa_Jsce thai'bis authorized representative be on site during any operations under {els approval. 7my disturbed areas shall be repaired to the satisfaction of the director. 16. A.copy of...~he app!ica~ion and approval letter shall be posted in a prc~in~nt lccation in the operators c~mp. 17. 18. Ail ...... ~ ~''- sh~l! m~inta~--ned ~ -~ ~.m~ upon ccs,:eletion of operations left ]m a condition satisfactorf to the director. A c~.p!etion report shall be~filedwithin 15 days of completion of OF~ations. Very truly yours, By: Pedro D~nton Chief, MLnera!s Section cc: NC District, Pe~}E&G, DEC, Dept. of Labor, Div. of O&G ~o~ ~o. P~ STATE. OF ALASKA REV. 3,-I-7'0 OIL AND GAS CONSERVATION CON~ITTEE SUBMIT IN DUPLICATE MONTHLY REPORT O'F DRILLING AND WORKOVER OPERATIONS 1. o,,. F-l oA, []] oT.., Wildcat I~ELL 2. NAME OF OP]EP, akTOR Mobil Oil Corporation 3. ADDRESS OF' OPEIR. ATOR P.O. Box 5444, Denver, CO 80217 4. LOCATION O'F WEI~ 210'N and 2140'E from SW corner Sec. 8- T12N-R13E UM, Alaska APl NLrMERiCAL CODE 50-029-20149 LEASE DESIGNA~ON AND SEHIA wyd r South Wildcat Sec 8- T]2N- 12. PE3R2VlIT N'O. 74-55 ]3. REPORT TOTAL DEPTH AT LND OF MONTH, CHA~NGF~ IN HOLE SIZE, CASING A.ND C~L~IENTING JOBSINCLUDING DEPTH SET A/Nq) VOLUIViE'S USED, PEI:~FOI:tATIONS. TESTS A_NTD RESULTS. FISHING JOBS. jLrNK LN HOLE A_ND SIDE-TtAACI~ED HOLE AND A.NY OTHER SIGNIFICANT CI-L~qGF~ IN HOL]~ CONT)ITIONS. 12-31-74 Depth 8059' Drilled 12 1/4" hole to 2790', Ran DIL and BHC sonic logs and temperature survey Opened hole to 17 1/2" Set 13 3/8" casing at 2744' with 4000 sacks of Arctic Set cement Deviation Surveys' 2088' 1/4o N 14°W 2490' 1/4o S 32°W 2768' 1/2o S 60°W 3333' 3/40 S 17°W 4432' 3/40 S 24°W 5421' 3/40 S 6°E 6005' 1/20 S 46OE 7124' 1/20 S 28OE 7436' 1° S lO°W 7774' 1° S 33OE Core #1 8000' - 8059' Recovered 59' CONFIDENTIAL 14. I hereby certify tl~at they foregoL0g is t. rue and correct -~ '~./ ~'-~-~ '~/~ Alaska Area Geoloqist ,:,A~ January 2~ 197~'b SI~GNED' 6-:' . ~ -?,,J'"~ .... C- "~'"' ~ TITLE NOTE IReport on this form is required for each calendar month~ regardless of the status of operations, and must be flied In duplicate with the oil and gas conservation committee by the 15th of the suoceeding month, unleM otherwise directed. Form ~o. P--4 REV'. $- 1-70 CONFIDENTIAL STATE O~ ALASK'~ DL~PLI CAT'E OIL AND GAS CONSERVATION CO~ MONTHLY REPORT O'F DRILLING AND WORKOVER OPERATIONS 1. o,L []] G,, []] aT,,, Wildcat W~LL Wl~LL 2. NAME OF OPERATOR Mobil Oil Cornnratinn ~]AD/)RESS OF OPERATOR P.O. Box 5444. Denver. CO aF)?17 4. LOCATION O,F WELL 210'N and 2140'E from SW corner Sec. 8 - T12N-413E UM, Alaska '-~-API NUAiERICAL CODE 50-029-20149 6 LEASE DESIGNA'FION AND SERIAL NO ADL47468 T. IF INDIA]S, ALOTTEE O]{ TRIBE NAME 8. L,~IT F.KI~I OR LEASE NAME Mobil-SOCAL 9. WELL NO Gwydyr Bay South #1 10. FIELD A_ND POOL. OH WILDCAT Wi 1 dcat I1. SEC., T., R., IVI.. (BO'I"I'OM HOLE Sec. 8 - T12N- R1BE UM PERMIT NO. 74 -55 13. REPORT TOTAL DEPTH AT F2qD OF MONTH, CHANGES IN HOLE SIZE, CASING AND CE3vlENTING JOBS INCLUDING DEPTH SET AN~D VOLUME~ USED, PERFORATIONS. TESTS ~ RESULTS. FISHIN'G JOB~. JLrNK IN HOLE AND SIDE-TRACKED HOLE AND A.NY OTHER SIGNIFICANT CHANGES IN HOLI~ CONDITIONS. 1680' - 12 1/4" hole. Spudded 11/15 7~ Repair rig 11/30/74. 30" casing @ 68' Drilled 26" hole to 750' 11/17/74 20" casing set at 677' w/3280 sacks arctic cement Deviation surveys' 95' - 156' - 248 - 430 - 526 - 649 - 740 - 912 - 1152 - 1598 - 1/4© 3/40 1/20 1/49 N 64OE 1/2u N 64°E 1/20 N 64°E 1/40 N 64°E 1© N 64OE 1/2~ N 100w 1/4u N 24OE 11/20/74 n 14 I hereby certi£y tl~at t~ £oregg~mg is t~e ~ ~ December 2, ] 974 ' ' ~ z,? . // ' Alaska Area Geologist NOTE--Report on this form is required for each calendar ~ntht regardless of the status of operations, and must ~ flied In duplicate wit~ oil and gas conservaflon commi~ee by the 15~ of the suoc~ding mon~, ~le~ otherwise directed. t974 Oil Coz-'i~.~orat~_on ?,O.Po~.% 7-0.O3 ~~'~ ~P~ 99510 Cc~r 3, 1974, are 2. Fne& m~ a~$ ~ti be diked ~ pre. vomit spillage ~to ~rf~ 3~ %~ter- ~Pty, ,~s~ ~atnr a~t so ~lid ~sta di~-~sal system =mst i~ site dhirLng ~' o~ratic~,~ ~n~der ~ apprc~al. satisfaction of the a y~omin~mt ~tion Ln ~n~ ~tors 7. A c~-~i~.on r ~.e~ort ~~ ~ filed %>~n 15 ~ays of cc~ie~ioa of Dept of Lahor November 12, 1974 Re: Gwydyr Bay South ~Obll Oil Pe~it No. 74-55 Mr. H. N. Porter Area Engineering Supervisor ~obil Oil Corporation P. O. BOX 5444 Denver, Colorado 80217 Enclosed is the approved application for permit to drill the above re- feren~d ~1!, on or about November 1, 1974, at a location in Section 8, Township t2N, Ra~e 13E, U..~. well samples, co~ chips, and a mud i~ are required. A directional survey is required. Mazy rivers in Alaska and their drainage systems have been classified as important for ~ spawning or migration of anadromous fish. Operations in ~ese areas are subject to AS 16.50.870 and the regulations promulgated ~hereunder (Title 5, Alaska Ad~ministrative Code). Prior to co~umencing operations yo~ may be contacted by the Habitat Coordinator's office, ~partment of Fish and Game. Pollution of any waters of the State is prohibited by AS 46, Chapter 03, Article 7 and ~e re~lations promulqated thereunder (Title 18, Alaska .Administrative Code, Chapter 78) and by the Federal Water Pollution Control Act, as amended. Prior to commencing operations you may be contacted by a representative of the Department of Environmental Conse~ation. 'r ~rsuant to AS 38.40, Local H~' e Under State Leases, the Alaska Department of Labor is being notified of the issuance of this permit to drill. v rL truly ~omer L. BurreI1 Chairman 'o Alaska Oil and Gas Conservati n C~ittee MLB:cha EncloSure Department of Fish and Game, Habitat Section w/o encl. ~partme-nt of Enviro~ental Conservation w/o encl. Department of Labor, Supe~isor, Labor Law Compliance ~ V~ Dx 1sion w/o encl. ~tober 3t, 1974 b~r. M. J. Meyer ~obil Oil Corporation P. O. Pouch 7-003 ~chorage, Alaska 99510 Dear ~r. Meyer: Enclos~ is the check for the permit fee for ~d_~r~_~_ay~ %1, AFE #4061. This check was erroneously mad~ out to the State-of A~al~q~a-F, Division of Oil m.nd Gas. Please make the check payable to the State of Alaska, Department of Re ye nue. Thank you for your cooperation. Sincerely, ~xecutive Secreta~ Enclosur-e Mobil 0[[ Corporation P,O. BOX 5444 DENVER, COLOf:~ADO 80217 CONFIDENTIAL · State of Alaska Department Of Natural Resources Division of Oil and Gas 3001 Porcupine Drive Anchorage, Alaska 99503 Dear Sir: October 29~ 1974 GWYDYR BAY~ # 1 NORTH ·SLOPE, ALASKA Mobil Oil CorPoration requests your approval for the drilling of the well Gwydyr Ba~l from a surface location approximately 210' north and 2140' east from the southwest corner of Section 8, T12N, R!3E, Umiat Meridian, Alaska in the State Lease No. ADL 47468. The subject well is to be drilled to a total depth of 13,000', Mobil Oil Corporation also requests an order of exception to the well spacing restrictions for drilling Gwydyr Ba~$1, in that the well's location deviates from required minimum stand-back at the lease line between state leases Nos. ADL 47468 and ADL ~9469. Exceptions are requested for the following well spacing rules: 1. Conservation Order N~. 98-A, Rule 2, Prudhoe Bay Kuparuk River. 0il Pool which specifies a 500' minimum stand-back. 2. Conservation Order No. S~-B, Rule 2, Prudhoe 0il Pool which specmz_es a 1500' minimum stand-back. 3. State Conservation Regulation, Section 2061 (a) which specifies a 500" minimum stand-back. Since the well will. be ice,ted on an island in the Kuparuk River Delta, choices of a suitable surface location are limited. The locations of lakes and areas of low elevation susceptible -ho flooding were considered in the selection of a site suitable for construction. There is evidence that there has been flooding on the north end of 'the island, probably due to ice blockage of 'the river channels during breakup· We believe that the selected location is 'as far north as practicable considering the problems of potential flooding and CONFIDENTIAL State of Alaska October 29, 1974 page 2. associated safety hazards. Geological interpretation indicates'. · that the selected site will be well located to penetrate potential pay zones and provide desired geological information. Application for Permit to Drill (form P-l) with a check for $100 and other necessary attac~nents accompany this letter. Yours very truly, PKP/vm att achment s H. N. Porter Area Engineering Supervisor 'Alaska Producing Area Porto 1)__! ------ "~ (Other instructions'on reverse side) ~. 9-30--ff'1 STATE OF ALASKA OIL AND GAS CONSERVATION ,COMMITTEE -- APPLICATION FOR PERMIT TO DRILL, DEEPEN, OR PLUG BACK la. TYp~ OF WORK DRILL ~ DEEPEN E~ PLUG BACK b. TYPI OF W~LL OIL ~ o,~ ~ ~INOL~ ~ MUI.TIPI,, ~ w,~ w,~ o~.,~ Wildcat zoo, zo~ 2. NAME OF OPKt~TOR Mobil 0il Corporation 3. ADDRESS O~ OP~TOR P. 0. Box 5444~ Denver, Colo, 80217 ,, 4. LOCATION O;F WELL At surface approx. 210' N $ 2140' E frcm the SW corner Sec. 8-T12N-R13E, UM, Alaska At proposed~prod, zone hame as above API #50-029-20149 6. LE~SE DESIGNATION AJ~rD SEi~IAL NO. ADL 47468 7. IF INDIAN, ALI_,O~ OR TRIBE NAM_g 8. UNIT, FARM OR LEASE NAME Mobil-Socal 9. WELL NO. ~&O~'~ G ydyv #1 10. FIELD AND P()OL. OR WILDCAT Wildcat 11. SEC., T., R., M., fBOTTOM HOLE OBJECTIVE) Sec. 8-T12N-R13E, UM 13, DISTANCE IN MILES AND DIRECT;ON F2iOM NEAREST TOWN OR POST OFFICE* 12. Approximately 18 miles NW of Dead Horse 14. BOND INFOR/VIATION: Pacific Indemnity Co. TYPE O~] g ~Y~.q Surety and/or No. 243305(Expires 8/18/76) 15. DISTANCE FRO~-'PROPOSED* . ]16, NO. OF ACRES IN LEASE LOCATION TO NEAi~EST 210 t- from South ADL 47468 PROPERTY OR LEASE LINE, FT. (Also to ne~res~ dr~, unit, if any~ line of lease 2437 Ac. 18. DISTANCE FROM PROPOSED LOCATION* 1~. PROPOSED DEPTH [ 13,000 ft. TO NEAREST WELL DRILLING, COMPLETED. 2 miles OR APPLIED FOR, FT. from Kup River State #1 ~o~, $100~000.00 NO, Ac~Es ASS~ON~ TO THiS WELL 20. ROTARY OR CABLE TOOLS Rotary 21. ELEVATIONS (Show whether DF, HT, C.R, etc.) 22. APPROX. DATE WORK WILL START* 25' (D.F.) Nov. 1, 1974 23. PROPOSED CASING AND CEMENTING PROGRAM , , SIZE OF HOLE SIZE OF CASING WEIGHT PER FOOT GRAI~E SETTING DEPTH QUANTITY or ' 36" 30" 154 3-55 50'!, 300 sx, 26" 20" 9.4 ~ {-40 '~f~ 75Q~i 2160 sx, / 1~'' 13-3/8" 72 '~ ~: N-80~7'~.-2~700ri 2525 ~, ~,' , , ,,- ]2~" 9-5/8"' 43.5'8 47 N80;S95 ll~OOo'i M~~ 575 ~x. ,;,. , , ,, .... 8~''~ 7" 29 Sk95 Z3,00u~ compie~ion p~g~'~ Following are attached with the application: (1) Drilling Program. (2) Blowout prevention program. (3) Survey plat. :; ,:., i ~"~ .. '" "i' 'th r'?' ', ~ ABO~ SPA~ DB~BE ~OPOS~ PR~R~: If p~l is to dee~n or plug ~, give ~ on present p~u~lve zo~ ~d pro~ ~w produ~ive ~ne. If propel ~ ~ drill or d~n d~ect[onally,~ give pert~ent ~ on subsu~a~ ~at~ ~d meas~d ~d ~ue pedicel dept. Give blo~ut preventer program. 24. I hereby :ertif)~ certify that the Fore~ing is True and Correct October 29, 1974 DAT~ Area Engineering ~T~ Supervisop (This space for State office use) SAMPLES AND CORE CHIPS REQUII~ YES [] NO ' DIP~CTIONAL SURVEY CONDITIONS OF APPROVAL, IF ANY: OTHER RE~U~S: A.P.I. NIJMEB~CAL CODE SEE TRANSMITTAL ~,~,,-'~ ~o_ . ./'/~..--/,:$-,5- ..., ,//' ~ov~ =^,'~ November 12, 19 74 APmmX, m:~ .v _ Tn"~.~, CAn ~ 'J r'mr-q 13 ~,~'r~ November 12 t *$~ Inmuction, On Reverse Side 1974 ., ? CONFIDENTIAL CONFIDENTIAL DRILLING PROCEI)LTt~ GWYDYR BAYA #1 NORTH SLOPE ALASKA Location- APproximately 210, +_ North and 2!40' + East from the SW corner, Section 8, T12N-R13E, Umiat Meridian, Alaska. Ger~eral' Deviations from the recommendations made herein may be necessary, due to conditions arising during the drilling of the subject well. However, if possible, any deviations from this program, along with the reasons, therefOre, should be discussed with the Drilling Superintendent prior to making the changes. If specific conditions make it unfeasible to discuss variations prior to their implementation, they should be reported, along with the reasons, therefore, to the Anchorage offices as soon there- after as possible. This well will be drilled as a straight hole. The projected casing program is as follows' Ca___s~n=g S i ze Dept~! 30" O.D. 80'3. 20" O.D. 750'" 13-3/8" O.D. 2,700'" 9-5/8" O.D. 11,000'" 7" O.D. (Liner) 13,000'" .Page 2. ' ONFID, ENT A[ Deviation It is possible that deviation problems will be encountered. Pack hole assembly and/or stiff hook-ups are recommended for use from the surface. Single shot directional measurements will be made the first 30', 60' and 90' and thereafter every 90' to 750'. From 750' deviation measurements will be made every 250' to 2700' +, and every bit change thereafter. If "dog-leg" severity greater tha~ 10/100' is indicated, surveys will be taken at 30' intervals through the suspected interval. The following maximum limits on deviation shall apply' .Depth Interval Maximum. deviation Maximum Dog-Leg SeveritjL .... 0 .- 750' 750' - 2,700' · 2,700' 5,000' 5,000' - 7,000' 7,000' - 11,000' i I , 000'~ -"13,000 1o lO/lO0' 2o 1 o/100' 5o 1~_°/1C)O' 6o 2°/100' 7o 2_°/lOO, 7o-1.0o 37 lO0' Mud Program A. Dri____]lling mud to be used frem 50'+_ To 750'+_ Prepare a 600 bbl. surface mud system with following composition' ... Fresh water Soda Ash XC Polymer Chrome A1 um Caustic Soda Paraformal dehyde 1 bbl. 0.5 to 1.5 lb/bbl. (depending on water hardness) 1 lb/bbl. 0.3 lb/lb polymer to pH 9 to 9.5 0.5 lb/bbl (if needed to prevent spoiling of polymer) The order of addition of materials should be as they are listed above. 'Caustic soda should not be added at the same time as the Chrome Alum, and it is preferred to dissolve the caustic in water first and add this solution to the mud. i~-'ag e '3. The following mud properties are recommended' Weight Funnel Vi scosi ty Plastic Viscosity Yield Point Initial Gel 10 min. Gel Fluid Less Solids PH. 8.7- 9.5#/gal. 50-60 sec./qt. lO-12 cp. 5-?.0~/100 sq. ft. 5-15#/100 sq. ft. 10-20 #/I00 sq. ft. 10-20 cc/30 min. 3-'8% by Vol. 9-9.5 If loose gravel and boulders are encountered requiring a high viscosity (400+ sec/qt. ). then switch to Gel and The desander and desilter should:be run while drilling or circulating to maintain low drilling solids. (The working time of the desander and desilter should be reported on the mud sheet each day, and should include the solid and sand content). This equipment is not de- signed to reduce, but rather to maintain low solids. Mud tempcratures in the suction pit and at the shale shaker, and the ambient temperature sould be measured and recorded with each mud check. These checks~should be spread over a 24-hour period, so as to provide repres~entative data throughout the mud system. ~Drilli.n~9 mud to be used from 750'+_ to 2700'+- Maintain higi~ v~scos~ty u~,~ niud to l~ ^'~" ' ,..~. - ' o~o/o ~i~g ~nt (27nn' + or as long as required to handle the gravel and boulders. Pretreat mud with 0.3#/bbl. bicarbonate of soda before drillin§ cement. Maintain same drilling procedures and equipment utilized in Section A. Gas may be found below permafrost, (1900' +-) with normal pressure gradient. The following mud properties are recommended' Weight Funnel Viscosity Plastic Viscosity Yield Point Initial Gel 10 min. Gel Fluid Loss Sol id content Sand Content pH Annulus Velocity 8.7 - 9.5 ~//Gal. 50-60 Sec./qt. lO-12 cp. 5-20f100 sq.ft. 5.-15#/100 sq. ft. 10-20 #/100 sq. ft. 10-20 cc/30 min. 5-10% by vol. 0 3% by vol 9-9.5 60-1 O0 ft./min. · ~age,. 4. CONFID[']'TiAL C. Drillinq~m. ud.to be used from 2700' +- to ll,O00'+ Pretreat mud with 0.3#/bbl. bicarbonate of soda before drilling cment. The polymer additions should be based on the water addition and upon the desired viscosity. W-ith each addition of polymer, there must also be an addition of chrome alum. Add wat~rdispersable asphalt if required and maintain a concentration of 6 lb/bbl. Asphalt concentration also should be regulated by know- ing the amount of water added to the system. 'Reduce filter loss by adding CMC in the mud system. The addition of ~vater to the system should be limited to that required to make up volun~e while drilling and to properly operate the centrifuge. If the polymer at a concentration of l½ lb./bbl does not p~-ovide enough hole cleaning capacity, then use bentonite below the lil,~it of 10 lb./bbl. Maintain "n" factor of mud within a range of 0°3 to 0.5. If it is too low, the mud probably has strong gels. If it is too '~igh, the mud does not have enough polymer. The following mud properties are recommended: Weight Plastic Viscosity "n" Factor pH Fluid loss Sol id content Drilled Solids Sand Content Annulus velosity 9.7-10.8 #/gal. 12-14 cp 0.3-0.5 9-9.5 6-10cc to 5000 ft. 6-8 cc below 5000 ft. 8-]0% by vol. less than 4% by vol. 0-1% by vol. 100+ ft/min. D. Drillinq mud to be used from ll,O00' to T.D. Pretreat mud with O.3#/bbl. bicarbonate of soda before drilling cement. The same drilling procedures and equipment to be utilized as in Section C. Try to maintain the same mud properties as are recommended in Section "C" until weighted mud is required. When it will become necessary to weight the polymer mud, a point may be reached (probably above 12#/gal.) where the properties Page 5. cannot be maintained adequately. At this point convert to a lignosuifonate system by addition of lignosulfonate and caustic soda. BOP Requirements .(See BOP Policies~: A. From 20" casing point to 13-3/8" casing point, HIP - 20 Bag'& Shaffer single gate. B. From 13-~3/8'' casing point to 9-5/8" casing point: 1 - Bag Type 13-5/8" series 1500, 5000 psi W.O.G. 13-5/8" bore. 2- Double gate, 13-5/8'.'~:s,~ries 1500, 5000 psi W.O.G. 13-5/8" bore, complete wi th"'~ DP and blind rams. C. From 9~5/8'' casing point to TD. 1 -Bag Type 13-5/8" series 1500, 5000 psi W.O.G. 13-5/8" bore. 2- Double gate, 13-5/8" series 1500, 5000 psi. W.O.~!. 13-5/8" bore, complete with q~'DP, and blind rams. NOTE: See attached figures. 7" and 9~5/8'' casing rams to be available on locatinn. All type BOP's should be opened and closed daily and tested weekly. The Gate Type BOP's should be tested to working pressure ~'ating and the Hydril (Bag Type) should be tested to 50% of the working pressure. All the tests must be recorded on the daily drilling reports. SEE BOP Policies. Casing Requirements' Surface conductor 30" O,D. 50'-+.o'f 30" O.D., new 154 lb/ft, line pipe. B. Permg. frost casing 20" O.D. 750'-'-of 20" O.D. 94 lb/ft., H~40 ST&C C. Surface casing i3-3/8" O,D, 8 ~ q'+ ~ " 1 . . - 700' -~:uO~- 1 ~3/8 O.D. 68 b/ft N-80, STSC 2000--2700'+ .D. 7_? ~b/~t. ,~'~-80, ST~,.C. ' -" ; D. Intermediate string 9-5/8" O.D. '0-4000' - 4000' 9-5/8", 43.5 lb/ft., N-80 ,Bu:tIn?ess 4000-10,000' - 6060' 9-5/8", 43.5 lb/ft., S-95, LT&C 10,000-11,000' - 1000', 9-5/8", 47.0 lb/fi, S-95~ LT&C Page 6. CONFIDENTIAL E. Production liner (if needed) 7" O.D., 29#/ft., S-95, LT&C. Dri 11 i ng__Procedure: I. Drill 36" hole to 50+ ft. This hole will be drilled with auger rig.. The bottom of the 30" conductor should be plugged with cement or wooden plug. The 30" conductor should be set in place and cemented to the surface through 1¼" tubing down the outside of the conductor with "Permafrost" slurry, and cement slurry should be kept at approximately 600 F. while pumping into place. The 1¼" tubing should be run to the bottom of the conductor. 2. Drill 12¼" hole to 750 ft. +. Run electric logs (DIL, GR-Sonic- Cal and a long spaced sonic log). It is. possible that deviation problems will be encountered. 3. Open 12¼" hole to 26". 4. Set 20" O.D. permafrost casing at 750' +-with a subsea hanger at '500 ft~ + . Use duplex collar, guide shoe and Arctic~ct cement to surface. If cement falls back, use 1¼" tubing and ce:,cnt down the outside of the casing. W.O.C. 12 hours (See attached 20" casing cementing procedure). 5. Nipple up wellhead and 20" bag type BOP. Pressure test BOP to i000 psi, and choke manifold, valves, etc., to 2000 psi. {$~e BOP policies). ~ Drill 12¼" hole thorugh gravel beds 2700 ft. +. Run electric logs v. (DIL, GR-Sonic-Cal, 30 side wall cores and a long spaced sonic log). Note that it is very important that the mud loggi.ng unit be installed and operating prior to drilling out from 20" casing. 7. Open 12¼" hole to 17½". .8. Run 13-3/8" O.Do Casing with centralizers on the first four joints, and a sub-sea type suspension system at 500'+- with t.,,,:o 13-3/~" x 20" centralizers, one beneath and one above; thereafter on every second joint. Set 13-3/8" O.D. casing string at 500 ft._ + on subsea suspension system. Use duplex collar, float shoe, and Arcticset. cement. Duplex collar should be run one joint above guide shoe. To cement the 13-3/8" O.D. casing string from 500 ft. +-- to 2700 ft.q-L, Use the foil. owing pro~'edure' a. Run 5'"' drill pipe inside casing and screw into duplex collar. b. Cement to surface. c. Run Howco FO collar @ base of 20" casing. Straddle with centralizers. , , 'CONFID£NTi^ Page 7. 9. Nipple up 13-3/8" series 1500 BOP-Stack. Pressure test BOP at 5000 psi. (See BOP policies). 10. Pressure test casing at 2000 psi. 11. Drill 12¼" hole to ll,O00 ft. + . Exact depth will be determined by well site geologist. Core with 8-7/16" core head and take electric log (DIL, GR-Sonic-Caliper-SNP, FDC, 120 side wall cores, 4. arm dipmeter and a long spaced sonic). Detailed information on testing will be forwarded at a later date. 12. Run and set 9-5/8" casing with a tie-back at 2000 ft.+-. (Place diesel oil in the 13-3/8" x 9-5/8" annulus). Possible use and place- ment of E~O. collars will be determined after logging is cempleted.Cement first stage with a minimum of 575 sx class "G" cement with 18% salt. (calCulated 1000' fill with 100% excess- see attached cementing program. W.O.C. 24 to 48 hours). Nipple up 13-5/8" series 1500 BOP stack. Pressure test BOP's choke manifold, valves, etc., to 5000 psi. (See BOP policies). Drill out and clean out float collar with an 8? bit. Pressure test casing to 2000 psi before drilling out shoe. 15. Sperry Sun non-magnetic direCtional survey may be run from 9-5/8" casing point to surface. 16. Drill 8½" hole to total depth. Core with 8-7/16" core head. Test information will be the same as for 12¼" hole and will be forwarded at a later date. Run electric log With 60 side wall cores (same as was run at 9-5/8" ca~ing point). 17. Total depth is estimated at 13~.000' + . A 7" liner will be run if ~roductive possibilites exist betwe--en 9--5/8" casing point and T.D. A .completion program will be forwarded on completion o'F drill'ing operations. NOTE' Catch 30' samples or as directed by well site geologist. Samples should be washed, dried, and sacked. P.K.Paul October 4, 197~ (lst Revision) ! L_ MIp -2O ii i iIl I I ' CHOKE ,,:'-- i MANIFOlD NOTE ' THIS IS A SCHEMA TlC SKETCH AND NOT A DIMENSIONAL DRAWING. UNIT TO BE ASSEMBLED, MOUNTED ON H BEAM SKIDS AND TESTED TO 5000 PS/.. I, $" X 2" FLANGED CROSS '2. $" X 2" STUDDED CROSS $. 2" FLANGED GATE VALVE 4. ,,~"FLANGED GA TE VALVE 5. 2" ADJUSTABLE CHOKE FLANGED ~. 2" POS! TI VE CHOKE FL ANGED 7. DOUBLE STUDDED ADAPTER TO SWACO I0,000 PSI CHOKE 8. COMMON RESET RELIEF VALVE 2" TYPE 8 9. 2" COMPANION FLANGE AND 2" HIGH PRESSURE NIPPLE I0. 2" COMPANION FLANGE - SCREW II. 2" HP BULL PLUG /2. SPACER NIPPLES CONS/S TING OF r.. WELD FLANGE 6~ 2" LINE PIPE. I,,~. 2" STUDDED EL BOWS 14. ,.~" COMPANION FLANGE SCREW OUTLE FIGURE T. 13 N. T. 12N CONFIDENTIA I ................... , SCALE I"= t MILE CERTIFICATE OF SURV/YON I hereby certify that I am properly registered and licensed to practice land surveying In the State of Alaska and that thle plat repre~ent~ a location 8urvt~y mode by m~ o~ under my ~upervl~ton, and that d~tail~ ar~ correct, Date D ETA I L rio GWYDY~ B~Y~ ~o. I Located In Surveyed for MOBIL OIL CORPORATION Surveyed by F.M. LINDSEY I~ ASSOC. LAND I~ HYDROGRAPHIC SURVEYORS 2502West Northern Lights Boulevard Box 4~O81 Anchorage Alaska well to be ! ~ ~ ~ o~.~ted i n a ~e~ ~: ned pool .................. ~/e~_~ Is well located proper dis~...,,,~ .......... __ ~L ......... TS wei] ~ocated proper di~ ~ ~.ance from n~'~'~"~n' the only affected Can pe~it be -~ ':~ ' ~vpro~:.~ before ~:en~=y wa~ uo~:~ operator h=~~,~ ~ boad in force Is coaductor string provided ....................... .,,~=~ ~-'~'~ ,~ed to circu~-'"~ '" -,~ i~term~dia~, ~' production strings ..... ,'.~I! cement tie in surface a~,= '~ ' C, tl ve ZO~qS cement co~:r ail, pos~.i'. ~f;~ >,. ~,~ ,,.. ........... . . Will sur'fac~ csg interna; b ...... ~: aquaTMq -~ ,,. ..... ,,~.~ : ,~ ;~:~i/~'=~ to next ~trin~ . . L ~c Roc~ b~ c ~e~t press .... ~ ra~:'~ ...............
