<_x0034_00639464>

400639464 06 96155 WHITING OIL AND GAS CORPORATION

1700 BROADWAY STE 2300

DENVER CO 80290 James Kopp 303 357-1410 303 390-4292 Kristi McRedmond Regulatory Tecnician 2014-07-03T14:01:51.22-06:00 DRAFT kmcredmond 2014-07-03T14:01:51.22-06:00 kmcredmond regulatory@petro-fs.com 0.00000 james.kopp@whiting.com kmcredmond kmcredmond 2014-07-03T15:26:33.53-06:00 400639464 Rains, Bill 970 590-6480 05 123 20474 00 WALKER 3 NWNW 31 10N 58W 6 WELD TERRACE SOUTH 81550 N OTHER � � � � 40.799964 -103.914918 Re-Plug and Abandon Procedure 1. Notify COGCC at least 48-hours prior to the start of operations using a Form 42. Verify with James Kopp that this is completed prior to moving the rig in. 2. The following is a procedure to drill out existing cement plugs and re-plug in order to properly isolate the Walker 3 well. Take GPS coordinates of well location. Send information to:James.Kopp@whiting.James Kopp com (303) 357-14103. 3. MIRU Workover Rig. Mob-in pump, swivel, tank, and 2-7/8" PH-6 workstring. NU 7-1/16" 5K BOP w/ 2-7/8" pipe rams on top and blind rams on bottom, pressure test high and low. PU full gauge 7-7/8" bit & TIH on 2-7/8" tubing. 4. Drill out existing cement plugs down to approximately 1,410 ftKB. 5. Clean out to approximately 5,800 ftKB. 6. Once depth has been reached, TOOH with 2-7/8" workstring standing back. 7. MIRU gyro equipment. PU tools and RIH while logging down to 5,800 ftKB. POOH while logging, LD tools. 8. MIRU cement crew. Pressure test surface lines to 2,000psi. Mix and pump 60 sks, API Class G, 1.15 cu-ft/sk, 15.8 ppg cement, balancing plug at 5,700 ftKB. TOOH with 2-7/8" workstring standing back. Let cement cure overnight. 9. TIH with 2-7/8" workstring. Tag TOC with EOT, record depth. 10. MIRU cement crew. Pressure test surface lines to 2,000psi. Mix and pump 60 sks, API Class G, 1.15 cu-ft/sk, 15.8 ppg cement, balancing plug at 1,700 ftKB. TOOH with 2-7/8" workstring standing back. Let cement cure overnight. 11. TIH with 2-7/8" workstring. Tag TOC with EOT, record depth. 12. MIRU cement crew. Pressure test surface lines to 2,000psi. Mix and pump 110 sks, API Class G, 1.15 cu-ft/sk, 15.8 ppg cement, balancing plug from 350 ftKB to surface. TOOH with 2-7/8" workstring, LD on float. 13. Cut off WH to 5' below GL and fill hole. 14. Weld on cap with plugging information plate. Backfill cellar. 15. Reclaim distrubed surface. bill.rains@state.co.us true 400639464 400639464 FORM 6 INTENT SUBMITTED 400639464.pdf 400639464 400639550 OTHER Access Letter Signed_Walker 3.pdf 37820 400639464 400639551 WELLBORE DIAGRAM Current Wellbore Diagram_Walker 3.pdf 68242 400639464 400639554 WELLBORE DIAGRAM Proposed Wellbore Diagram_Walker 3.pdf 85929 400639464 400639555 LOCATION PHOTO Site Location Photos - Walker 3.pdf 696127 400639464 400639556 OTHER Re-Plug and Abandon Procedure_Walker 3.pdf 68417 400639464 0 false 400639464 1 false 400639464 2 OPEN HOLE 60 5500 5700 true 400639464 3 OPEN HOLE 60 1500 1700 true 400639464 4 false 400639464 5 false 400639464 6 false 400639464 7 false 400639464 8 false 400639464 9 false 400639464 10 110 0 350 false 400639464 11 false 400639464 12 false 400639464 13 false 400639464 14 false 400639464 15 false 400639464 16 false 400639464 SURF 12 1 4 8 5 8 24 350 0 350 0 ACTUAL Thread was being aborted.