| Engineer | Form: (02) 401054345 06/22/2016 | 1)Operator shall comply with the most current revision of the Northwest Notification Policy.
2) Operator shall provide cement coverage from the production casing shoe (5+1/2" First String) to a minimum of 200' above the surface casing shoe to provide full isolation of the Coalmont Formation. Verify production casing cement coverage with a cement bond log. |
| Environmental | Form: (04) 401135685 11/23/2016 | The operator has informed COGCC that any stockpiled cuttings will be removed or in their final disposition by July 2017. |
| Environmental | Form: (04) 401135685 11/23/2016 | All stockpiled material shall have proper stormwater BMP’s, to prevent the migration of soil. |
| Engineer | Form: (02) 401457438 11/21/2017 | 1)Operator shall comply with the most current revision of the Northwest Notification Policy.
2) Oil-based drilling fluid is to be used only after all fresh water aquifers are covered.
3) Operator shall provide cement coverage from the production casing shoe (7" First String) to a minimum of 200' above the surface casing shoe to provide full isolation of the Coalmont Formation. Verify production casing cement coverage with a cement bond log.
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| UIC | Form: (02) 401457438 11/21/2017 | 1. Injection is not authorized until approval of Subsequent Forms 31 and 33.
2. PRIOR TO PERFORMING OPERATIONS: Operator is required to contact COGCC to discuss Step Rate Test or Injectivity Test criteria for Maximum Surface Injection Pressure determination. Prior approval of Form 4 is required for step rate and injectivity tests.
3. PRIOR TO PERFORMING OPERATIONS: Approval of Form 4 is required for acid and fracturing jobs. (New as of 4/13/2016).
4. Retrieve water sample(s) from injection zone(s) before stimulating formation. Samples must be analyzed for Total Dissolved Solids at a minimum.
5. For ALL NEW DRILL UNDERGROUND INJECTION WELLS a suite of open-hole Resistivity/Gamma Ray and Density/Neutron logs IS REQUIRED from Surface Casing shoe to TD. A PDF, TIFF, or PDS visual image and a LAS or DILS file version of each log is required.
6. See Drilling/Completion Ops COA #3 for cement requirements and requirement to run CBL.
7. Operator must provide all tops of formations encountered from surface to TD on the Form 5 when submitted.
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