<_x0034_00796265>

400796265 06 100322 NOBLE ENERGY INC

1625 BROADWAY STE 2200

DENVER CO 80202 Hunter Dunham 303 228-4308 303 228-4286 Eileen Roberts Regulatory Analyst I 2015-02-20T07:59:16.063-07:00 DRAFT robertse 2015-02-20T07:59:16.063-07:00 robertse eroberts@nobleenergyinc.com 0.00000 hdunham@nobleenergyinc.com robertse robertse 2015-03-26T13:31:43.813-06:00 400796265 Gomez, Jason 970 573-1277 05 123 05679 00 Bradbury 1 NENW 15 9N 58W 6 WELD WILDCAT 99999 S OTHER N N N Y 2014-02-22T00:00:00-07:00 BISON OIL WELL CEMENTING 40.749790 -103.847460 2013-11-21T00:00:00-07:00 Brian Rottinghaus 1.8 PROCEDURE: 1) Survey and locate abandoned well, mark with stake 2) Excavate to expose top of surface casing 3) Weld 2" collar to top of 10 3/4" surface casing cap. Make up to collar, pneumatic drill with non-sparking bit. Drill out cap venting possible trapped gas. 4) Once verified that no gas exists beneath top of surface casing plate, cut off surface casing below plate with torch, dress up smooth. 5) Butt weld 10 3/4" casing to dressed cut, bringing threaded end of casing to ground level. 6) Make up to 10 3/4" casing, one 10 3/4" collar and 10 3/4" starter well head 7) NU flange adaptor and 5k BOP, test BOP. 8) NU and RIH with 6 7/8" cone bit, PU 2 7/8" drill collar, 2 7/8" 8.7# tubing, and TIW valve 9) Drill out first cement plug inside surface casing, roll hole clean. Verify top of next cement plug inside of surface casing by tagging. 10) If unable to verify isolation of surface casing with tag of cement plug, set RBP inside surface casing 11) Once isolation of surface casing is established, either with tagging of cement plug or setting of RBP, pressure test surface casing to 200psi 12) After pressure test of surface casing, retrieve RBP or continue drill out of cement plug under surface casing shoe. 13) Assume pressure under surface casing shoe, roll hole with kill fluid until well dead, or blow down. 14) Continue RIH, cleaning out with drilling mud or water to 3000' 15) TOOH with cone bit, drill collars, and 2 7/8" tubing. 16) PU and RIH with mule shoe and 2 7/8" tubing to 3000'. 17) RU cement crew and pump a balanced plug of 100sk 15.8 ppg Class G "neat" cement 18) POOH to 1150' (150' below deepest water well @ 1000') 19) RU cement crew and pump 498 sxs of 15.8ppg Class G "neat" cement bring cement to surface 20) POOH with 2 7/8" tubing. Wait 4 hrs, and tag TOC. If cement has fallen, top off back to surface 21) Let cement set over night, verify cement has not settled and is still at surface. RDMO 22) Excavate around wellhead to 8' below grade, cut off 10 3/4" casing, weld on cap 23) Backfill hole and reclaim surface to original conditions jason.gomez@state.co.us true 400796265 400796265 FORM 6 SUBSEQUENT SUBMITTED 400796265.pdf 400796265 400796303 WELLBORE DIAGRAM proposed wellbore diagram.pdf 246224 400796265 400796315 CEMENT JOB SUMMARY CEMENT TICKET.pdf 768526 400796265 400815643 PROPOSED PLUGGING PROCEDURE BRADBURY #1 05_123_05679 Reentry Procedure.pdf 19059 400796265 400815645 WELLBORE DIAGRAM Post plug wellbore schematic.pdf 516320 400796265 LYNS 7436 2014-02-22T00:00:00-07:00 CEMENT 1528 400796265 0 false 400796265 1 false 400796265 2 OPEN HOLE 252 0 1528 true 400796265 3 false 400796265 4 false 400796265 5 false 400796265 6 false 400796265 7 false 400796265 8 false 400796265 9 false 400796265 10 false 400796265 11 false 400796265 12 false 400796265 13 false 400796265 14 false 400796265 15 false 400796265 16 false 400796265 SURF 13 1 2 10 3 4 32.75 300 300 300 0 VISU ACTUAL Thread was being aborted.