Oak Meadow Homeowners Association Briefing -...
Transcript of Oak Meadow Homeowners Association Briefing -...
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Oak Meadow Homeowners Association Briefing
May 24th, 2017
Matthew J. LeporeDirector
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• Coors V6-14Ji Well and Oak Meadows Subdivision History
• Environmental Impacts Investigation and Remediation
• COGCC Notice To Operators re: Flowlines
Agenda:
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Coors V6-14Ji Well and Oak Meadows Subdivision History
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Coors V6-14Ji Vertical well, drilled by Gerrity Oil & Gas Corp. in
1993.
Drilled to Codell formation; total depth of 7912 feet.
Well produced primarily gas, but also produced some oil.
Patina Oil & Gas Corp. acquired the well in 1997.
Patina re-completed the well to the J sand in 2001.
Noble Energy acquired the well in 2005.
Anadarko acquired the well in 2014.
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Oak Meadows PUD Filing 1; Gasline Relocation As-Built Sheet 72 1/15/1999
EXISTING PATENA GASLINE TO BERELOCATED
EXISTING WELL
PROPOSED GASLINE
EXISTING DUKE GASLINE TO BERELOCATEDSEE VIEW B
PROVIDE SURFACE MARKERS AT BOTH ENDS OF POND
EXISTING GAS WELLS AND STORAGE TANKS
PROVIDE SURFACE MARKERS AT EACH END OF THE POND
EXISTING GAS WELL
PROPOSED GAS WELL
EXISTING GAS WELL
PROPOSED 12’ X 12”LAUNCHER SITE
PROPOSED GASLINE
PROPOSED PRODUCTION
FACILITY
PROPOSED GASLINE
BURY GASLINE 3’ BELOW DETENTION
POND
BURY GASLINE 3’ BELOW DETENTION
POND
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10/3/1999 aerial image; 1999 facility status
123-19674Coors V6-13JiSpud: 11/15/1998PR
Abandoned FlowlineActive FlowlineActive WellAbandoned Well
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123-17324Coors V6-14JiSpud: 11/30/1993PR
123-17244Coors V6-11Spud: 1/4/1993PR
123-17323Coors V6-13Spud: 11/18/1993PR
Production Facility
123- 11049Coors Fee 3-6Spud: 4/8/1983PR
123- 12193Coors Fee 4-6Spud: 2/27/1984PA 7/18/1985
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Production FacilityAC 2/28/2017
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(current facility status)
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123-17324Coors V6-14JiPR 2/28/2017
Active Production FacilityAC 2/28/2017
FacilityAbandoned in 11/2014
123- 11049Coors Fee 3-6PA 11/19/2014
123-17244Coors V6-11PA 11/7/2014
123-17323Coors V6-13PR 2/28/2017
123-19674Coors V6-13JiPR 2/28/2017
123- 12193Coors Fee 4-6PA 7/18/1985
10/9/2015 aerial image; current facility status
Abandoned FlowlineActive FlowlineActive WellAbandoned Well
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Environmental Assessment & Progress Update
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Methane Information
• Natural Gas vs. Methane
• Fire/Explosion
• Asphyxiant
• Toxicity
• Environmental
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Ground Methane Driving SurveyApogee Scientific, Inc. Leak Detection System (LDS)
Real-time, mobile detection of methane (CH4), carbon dioxide (CO2), and total hydrocarbons (HC)
Apogee-sci.com/leak-detection
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Ground Methane Driving Survey
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Ground Methane Driving Survey
Elevated methane detected:Methane 4.5 ppm (0.00045%)Air monitoring ~200 ppm
Elevated methane detected:Methane 4.5 ppm (0.00045%)Hydrocarbons 8 ppm
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Soil Gas Survey
• Shallow soil screening points on a 75’ grid
• Hand-held screening equipment
• Laboratory sampling
• Intended to guide additional assessment
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63126310
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63126310
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63126310
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Long Term Monitoring
1” PVC Monitoring Point2” PVC Vent
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Long Term Monitoring
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Soil Gas Survey Findings• Soil gas is limited to 2 distinct areas
• Eastern area around 6312 Twilight Avenue
• Western area at Oak Meadows Boulevard, south of Twilight
• Lateral extent of methane is delineated
• Monitoring point data indicate that methane in soil is not migrating to occupied residences
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Implications and Next Steps• Beginning May 4, COGCC engaged the operator of
the Coors V 6-14 Ji well to commence their own investigation into the release of gas
• Anadarko began to investigate the lateral and vertical extent of gas in the soil on May 5
• Anadarko installed additional PVC monitoring points and vents in the western area
• Soil, soil gas, and groundwater samples collected
• Soil Vapor Extraction system implemented to remediate excess methane concentrations
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https://en.wikipedia.org/wiki/Soil_vapor_extraction
Ongoing Efforts - SVE
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Ongoing Efforts - SVE
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COGCC Notice to Operators re: Flowlines
May 2, 2017
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Flowline Riser NTO
● Requires oil and gas operators to take immediate steps to minimize any possibility an improperlyabandoned flowline remains connected, or can be re-connected, to an active well or production facility.
● COGCC inspectors and engineers are embedded with operators to witness and inspect actions taken pursuant to the NTO.
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Inactive risers
Active riser
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Flowline Riser NTO
● For all wells or production facilities within 1,000’ of an occupied building, operators must:
o By May 30, re-inspect all existing flowlines and identify the wellhead connection and the corresponding production facility connection; document these locations and report to COGCC.
o By June 30, test all flowlines to ensure they have mechanical integrity and document testing.
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Flowline Riser NTO● Regardless of distance between a well or
production facility and an occupied building, operators must:o By May 30, mark any existing flowline riser not in active
use with fluorescent paint; remove all operating valves (or lock-out/tag-out); and cap riser until it can be cut-off below grade and sealed pursuant to Rule 1103.
o By June 30, cut-off below grade all risers not in active use and seal the ends.
o An operator may return an unused riser to active use if a successful pressure test is performed and the riser is locked-out / tagged-out pending return to service.
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Oak Meadow Homeowners Association Briefing
May 24th, 2017
Matthew J. LeporeDirector