| Engineer | Form: (04)
400649902
07/28/2014 | Note change in procedure:
1) Verify existing production casing cement with a cement bond log.
2) If Niobrara coverage not present, provide remedial cement 200’ above Niobrara (minimum cement top of 7096’).
3) Shannon and Sussex are productive in this area. Isolate Shannon and Sussex by either an annular fill cementing from 50' below Shannon to 200' above Sussex or performing a successful casing pressure test after ensuring Niobrara and aquifer isolation with cement. If casing pressure test used it should be acknowledged in the Form 5-Submit tab Technical Details/Comments.
4) Increase depth for aquifer annular fill from 650' to 700'. Adjust cement volumes accordingly.
5) The additional cement referenced shall be placed as indicated and comply with Rule 317.i. The placed cement shall be verified with a CBL and documented with a Form 5 Drilling Completion Report.
6) If gyro survey has been run please submit it with the Form 5 Drilling Completion Report. |
| Engineer | Form: (06)
402055578
12/04/2019 | Bradenhead Testing
Prior to starting plugging operations a bradenhead test shall be performed if there has not been a reported bradenhead test within the 60 days immediately preceding the start of plugging operations.
1) If, before opening the bradenhead valve, the beginning pressure is greater than 25 psi, sampling is required.
2) If pressure remains at the conclusion of the test, or if any liquids were present during the test, sampling is required.
The Form 17 shall be submitted within 10 days of the test. Sampling shall comply with Operator Guidance - Bradenhead Testing and Reporting Instructions. 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.
If there is a need for sampling, contact COGCC engineering for verification of plugging procedure.
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| Engineer | Form: (06)
402055578
12/04/2019 | Plugging
1) Provide 48 hour notice of plugging MIRU via electronic Form 42.
2) Properly abandon flowlines as per Rule 1105. File electronic Form 42 once abandonment complete. Within 30 days of an operator completing abandonment requirements for an off-location flowline or crude oil transfer line the operator must submit a Flowline Report, Form 44.
3) Plugs and squeezes will be placed as stated in the Plugging Procedure section of the approved NOIA unless revised by COA or prior approval from COGCC is obtained.
4) The wellbore must be static prior to placing cement plugs which are to be a minimum of 100' in length for all but surface plugs. Mechanical isolation requires a 25' cement plug, minimum.
5) Place a 50' plug (minimum) at the surface, both inside the inner most casing and in all annular spaces. Confirm cement to surface in all strings during cut and cap.
6) With the Form 6 SRA operator must provide written documentation which positively affirms each COA has been addressed.
7) Contact area inspector prior to commencing plugging operations.
8) Operator shall run CBL from 1000-0' to confirm cement coverage and submit to COGCC Area Engineer to confirm plugging procedure prior to proceeding with P&A.
9) Add 40 sx squeeze at 4450' for Sussex/Shannon isolation. Leave 100' of cement in the csg if a CICR is not used.
10) Move 45 sx squeeze from 1800' to 2500'.
11) Submit gyro survey with Form 6 SRA if available.
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| Engineer | Form: (06)
402055578
12/04/2019 | 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.
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| Engineer | Form: (04)
402500961
07/20/2021 | 1) This approval is good for one year and a new application must be made before09/30/2021. Updates for the planned utilization of the well should be included with the application.
2) The Form 7, Operators Report of Monthly Operations, must correctly reflect the well status and dates reported on the Form 4, Sundry Notice-Request for Continued Temporarily Abandoned Status.
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| Engineer | Form: (04)
402814216
04/28/2022 | Effective April 30, 2022 this well will be designated inactive and must be properly returned to production, plugged and abandoned, have an approved Form 5B or added to a Form 6A list no later than November 1, 2022. |
| OGLA | Form: (06)
404093203
02/27/2025 | Operator committed to the following Best Management Practices under the Technical Detail/ Comments section on the Submit Tab:
Operator will use secondary containment for all tanks and other liquid containment.
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| Engineer | Form: (06)
404093203
02/28/2025 | Prior to starting plugging operations a Bradenhead test shall be performed if there has not been a reported Bradenhead test within the 60 days immediately preceding the start of plugging operations.
1) If, before opening the Bradenhead valve, the beginning pressure is greater than 25 psi, sampling is required.
2) If pressure remains at the conclusion of the test, or if any liquids were present during the test, sampling is required.
The Form 17 shall be submitted within 10 days of the test. Sampling shall comply with Operator Guidance - Bradenhead Testing and Reporting Instructions. If samples are collected, copies of all final laboratory analytical results shall be provided to the ECMC within three (3) months of collecting the samples. |
| Engineer | Form: (06)
404093203
02/28/2025 | Operator shall implement measures to control venting, to protect health and safety, and to ensure that vapors and odors from well plugging operations do not constitute a nuisance or hazard to public welfare. |
| Engineer | Form: (06)
404093203
02/28/2025 | 1) Provide 2 business day notice of plugging MIRU via electronic Form 42, and provide 48 hours Notice of Plugging Operations, prior to mobilizing for plugging operations via electronic Form 42. These are 2 separate notifications, required by Rules 405.e and 405.I.
2) Prior to placing the 800’ plug: verify that all fluid migration (liquid and gas) has been eliminated. If evidence of fluid migration or pressure remains, contact ECMC Engineer for an update to plugging orders.
3) After isolation has been verified, pump surface casing shoe plug. If cement is not circulated to surface, shut-in, WOC 4 hours then tag plug – must be at 163’ or shallower and provide 10 sx plug at the surface.
4) Leave at least 100’ of cement in the wellbore for each plug without mechanical isolation.
5) After surface plug and prior to cap, verify isolation by either a 15 minute bubble test or 15 minute optical gas imaging recording. If there is indication of flow contact ECMC Engineering. Provide a statement on the 6SRA which method was used and what was observed. Retain records of final isolation test for 5 years.
6) With the Form 6 SRA operator must provide written documentation which positively affirms each COA listed above has been addressed. |
| Engineer | Form: (06)
404093203
02/28/2025 | FLOWLINE AND SITE CLOSURE
1) Consistent with Rule 911.a, a Form 27 must be approved prior to cut and cap, conducting flowline abandonment, or removing production equipment. Allow 30 days for Director review of the Form 27; include the Form 27 document number on the Form 44 for offsite flowline abandonment (if applicable) and on the Form 6 Subsequent.
2) Properly abandon flowlines per Rule 1105. If flowlines will be abandoned in place, include with the Form 27: pressure test results conducted in the prior 12 months as well as identification of any document numbers for a ECMC Spill/Release Report, Form 19, associated with the abandoned line. |