<_x0034_00857170>

400857170 06 47120 KERR MCGEE OIL & GAS ONSHORE LP

P O BOX 173779

DENVER CO 80217-3779 Cheryl Light 720 929-6461 720 929-7461 Cheryl Light Sr. Regulatory Analyst 2015-06-23T09:03:38.267-06:00 DRAFT ASTANLEY 2015-06-23T09:03:38.267-06:00 ASTANLEY cheryl.light@anadarko.com 0.00000 cheryl.light@anadarko.com ASTANLEY ASTANLEY 2015-06-23T10:09:14.78-06:00 400857170 Peterson, Tom 303 815-9641 05 123 10475 00 LEONA 1 NWSW 23 1N 67W 6 WELD WATTENBERG 90750 N OTHER Y N N N 40.034698 -104.864971 Rig site modification once approval is r'cd. Need to relocate hay in barn, want to minimize impact. METHOD OF ISOLATION - PREVIOUSLY ABANDONED ZONE: Sand plug with 5 sack cmt cap. 1 Locate and expose 8 5/8" casing stub. Extend stub to surface and install 8 5/8"x 11" SOW, 3M casing head with 3000 psi ball valves in both outlets. Prepare location for workover rig. Install perimeter fence as needed. NOTE: This well is under a hay barn. 2 Provide notice to COGCC prior to rig up per request on approved Form 6 (e.g. call field coordinator, submit Form 42, etc.). Install perimeter fence as needed. 3 MIRU workover rig. NU 9" 3000 psi BOP stack on casing head. PT BOP and csg head per approved Form 2. Function test BOPE . Install a choke or choke manifold on casing outlet. NU rotating head on BOP. Hook up return line to shale shaker on flat tank. Ensure full opening 2-7/8" TIW on rig floor. 4 PU 7 7/8" mill tooth bit, inline float, necessary drill collars and drill pipe/work string (WS). Drill through existing cement plugs at surface (10sk) and at the base of surface casing (35 sk plug 1/2 in, 1/2 out of sfc csg) using fresh water with biocide. 5 Once surface cement plugs are drilled, Displace hole with drilling mud and drill out 35 sack open-hole plug set at ~750'-800'. Continue going in hole washing down to 4 1/2" casing stub at 6500'. 6 TOOH standing back WS. LD drill collars and bit. RIH WS open-ended to ~6500'. Circulate and condition hole for cement plug. 7 RU Cementers. Mix and equalize cement plug (6500'-6100') consisting of 180 sx Thermal-35 with 0.5% CFR-2, 0.25% FMC mixed at 15.6 ppg and 1.51 cuft/sack. Calculated top of plug is 6200' based on 9 1/2" hole with 40% excess. POOH to ~5000' and circulate clean. WOC per cement company recommendation. 8 Tag top of plug at 6100'. TOH and LD WS to place end of WS at 4800' 9 Equalize cement plug consisting of 360 sx "G" w/0.25 lb/sk polyflake, 0.5% CFR-2, 0.2% FMC, 0.5% LWA with CaCl2 as deemed necessary. Mixed at 15.8 ppg, 1.15 cuft/sack. Cement to be preceded by 5 bbls water, sodium metasilicate mixed in 20 bbls water per cementing company recomendation, and 5 bbl water spacer. Cement volume calculated to cover 4800'-4370' based on 11.5" hole with 40% excess. 10 POOH to ~ 3500' and circulate clean. WOC per cement company recommendation. 11 Tag plug at 4370'. LD WS to place end of WS at 1120'. 12 Equalize cement plug consisting of 530 sx Type III w/cello flake and CaCl2 as deemed necessary, mixed at 1.34 cf per sack, 14.8 ppg. POH and WOC per cementing company recommendation. Plug size is based on 12" hole with 40% excess covering 1120' to base of surface casing at 242' plus capacity of surface casing to 100'. Pump plug in two stages if necessary due to volume. 13 POOH and WOC per cementing company recommendation. 14 Tag top of plug at 100'. POOH and LD WS. 15 RU wireline. Run and set CIBP in the 8 5/8", 24# surface casing at 80'. PT CIBP and surface casing to 1000 psi for 15 minutes. Assuming successful test, RD wireline. 16 RDMO workover rig. 17 Instruct cementing and wireline contractors to e-mail copies of all job logs/job summaries to rscDJVendors@anadarko.com within 24 hrs of completion of the job. 18 Supervisor submit paper copies of all invoices, logs, and reports to Evans Engineering Specialist. 19 Excavate hole around surface casing of sufficient size to allow welder to cut off 8 5/8" casing at least 5' Below ground level (depending on land owner requirements). 20 Fill sfc casing with 4500 psi compressive strength cement (no gravel). 21 Spot weld steel marker plate on top of sfc casing stub. Marker shall be labeled with well name, well number, legal location (1/4 1/4 descriptor) and API number. 22 Obtain GPS location data as per COGCC Rule 215 and send to rscDJVendors@anadarko.com. 23 Back fill hole with native material. Reclaim location to landowner specifications 24 Submit Form 6 to COGCC. Provide "As plugged" wellbore diagram identifying the specific plugging completed. tom.peterson@state.co.us true 400857170 This well was originally abandoned in 1987 with production casing cut off at 6500'. Well is to be re-entered to add cement plugs above the Niobrara and across the Sussex formation, and Fox Hills coverage from 1120' to 100'. 400857170 400857170 FORM 6 INTENT SUBMITTED 400857170.pdf 400857170 400857185 SURFACE OWNER CONSENT LEONA 1 P&A CONSENT LETTER.pdf 97468 400857170 400857190 WELLBORE DIAGRAM LEONA #1 WBD.pdf 77328 400857170 400857191 WELLBORE DIAGRAM Leona #1 Current WBD.pdf 51007 400857170 400857192 PROPOSED PLUGGING PROCEDURE Leona 1 prog.pdf 82118 400857170 400857225 LOCATION PHOTO LEONA 1 PICTURES.pdf 3566512 400857170 CODL 7614 7620 1987-09-24T00:00:00-06:00 7485 400857170 0 25 80 false 400857170 1 false 400857170 2 OPEN HOLE 180 6100 6500 true 400857170 3 OPEN HOLE 360 4370 4800 true 400857170 4 false 400857170 5 false 400857170 6 false 400857170 7 false 400857170 8 false 400857170 9 false 400857170 10 530 100 1120 false 400857170 11 25 false 400857170 12 false 400857170 13 false 400857170 14 false 400857170 15 false 400857170 16 false 400857170 1ST 7 7 8 4 1 2 11.6 7750 175 7752 7075 CALC ACTUAL 400857170 SURF 12 1 4 8 5 8 24 242 200 242 11 VISU ACTUAL Thread was being aborted.