| Engineer | Form: (06)
401606550
05/08/2018 | Plugging
1) Provide 48 hour notice of plugging MIRU via electronic Form 42
2) The plug at 1500'' shall only need to be tagged if circulation is lost during placement
of the plug.
3) If there is fluid migration or shut-in pressure on the well prior to pumping any plug
(annular or casing)
that covers the bottom of the deepest aquifer or the surface casing shoe (whichever is
deeper) contact COGCC Engineer for revised plugging orders.
4) If the shoe plug, or combined stub/shoe plug, is not circulated to the surface then the
plug shall be tagged and must be 50' into the shoe, or 50' above the cut, whichever is
shallower.
5) Place a 50' plug (minumum) at the surface.
6) Properly abandon flowlines as per Rule 1103. File electronic Form 42 once
abandonment is complete.
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| Engineer | Form: (06)
401606550
05/08/2018 | Bradenhead Testing
Prior to starting plugging operations, a bradenhead test shall be performed.
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.
3) If sampling is required, contact COGCC engineeringfor a confirmation of plugging
requirements
prior to placing any plugs.
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.
4) The Form 17 Bradenhead Test Report shall be submitted within 10 days of the test
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| Engineer | Form: (06)
401606550
05/08/2018 | 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.
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