| Environmental | Form: (04)
400980957
02/09/2016 | Passing the subject Sundry Notice serves to acknowledge receipt of the attached information by the COGCC and does not imply approval of any requests therein. COGCC’s review of and response to such requests will be made separately. |
| Engineer | Form: (04)
401004384
05/13/2016 | Passing the subject Sundry Notice serves to acknowledge receipt of the attached information by the COGCC and does not imply approval of any requests therein. COGCC’s review of and response to such requests will be made separately. |
| Engineer | Form: (06)
401526498
03/19/2018 | Post Plugging Reporting
• Form 17 Bradenhead Test Report shall be submitted within 10 days of the test.
• File electronic Form 42 once flowline abandonment is complete.
• If samples are collected, copies of all final laboratory analytical results shall be provided to the COGCC within three (3) months of collecting the samples. |
| Engineer | Form: (06)
401526498
03/19/2018 | Plugging
• Provide 48 hour notice of plugging MIRU via electronic Form 42.
• COGCC change with operator approval: Add CIBP with 2 sx of cement at 4700’.
• COGCC change with operator approval: Move top of shoe plug cement from 964’ to 900’, adjust cement volume accordingly.
• COGCC change with operator approval: Move CIBP from 900’ to 600’.
• COGCC change with operator approval: Move bottom of surface plug from 50’ to 80’, adjust cement volume accordingly.
• Wait 8 hrs after pumping stub plug at 2000’, tag and check for fluid migration or shut-in pressure on the well. Contact COGCC Engineer for revised plugging orders if well is not static at this time prior to continuing with plugging operations.
• Check for fluid migration or shut-in pressure on the well prior to pumping any plug(open hole, annular or casing) that isolates deepest aquifer or the surface casing shoe (whichever is deeper). Contact COGCC Engineer for revised plugging orders if well is not static at this time, prior to continuing with plugging operations.
• Tag required if the shoe plug, or combined stub/shoe plug, is not circulated to the surface and top of cement must be 50’ into the shoe, or 50’ above the stub, whichever is shallower.
• Place a 50' plug (minimum) at the surface, both inside the inner most casing and in all annular spaces. All other cement plugs, without mechanical isolation, shall have at least 100' of cement left in the casing.
• Properly abandon flowlines as per Rule 1103. |
| Engineer | Form: (06)
401526498
03/19/2018 | Bradenhead Testing
• Prior to the start of plugging operations, a bradenhead test shall be performed and reported if there has not been a reported bradenhead test within the 60 days immediately preceding the start of plugging operations.
• If any of the following conditions exist then sampling of all fluids is required and sampling methods shall comply with Operator Guidance – Bradenhead Testing and Reporting Instructions, Appendix A: Liquid and Gas Sampling as found on the COGCC website, cogcc.state.co.us.
1) The initial pressure measurement on the bradenhead is greater than 25 psi, prior to blowing down any liquid or gas from the bradenhead valve, or
2) Pressure remains at the conclusion of the test, or
3) Any liquids are present anytime during the test. If so, then stop the test as soon as liquids are present and sample before resuming the test. |
| Engineer | Form: (06)
401526498
03/19/2018 | Venting
Operator shall implement measures to control unnecessary and excessive venting, to protect the health and safety of the public, and to ensure that vapors and odors from well plugging operations do not constitute a nuisance or hazard to public welfare. |