| Engineer | Form: (02)
400135500
03/03/2011 | 1) Note surface casing setting depth change from 800’ to 880’. Increase cement coverage accordingly and cement to surface.
2) Provide 24 hour notice of MIRU to Jim Precup at 303-469-1902 or e-mail at james.precup@state.co.us
3) Comply with Rule 317.i and provide cement coverage from TD to a minimum of 200' above Niobrara and from 200’ below Sussex to 200’ above Sussex. Verify coverage with cement bond log.
4) Comply with Rule 321. Run and submit Directional Survey from TD to base of surface casing. Ensure that the wellbore complies with setback requirements in commission orders or rules prior to producing the well.
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| Engineer | Form: (06)
400815748
04/19/2015 | Note change in plugging procedure:
1) Submit Form 42 electronically to COGCC 48 hours prior to MIRU.
2) If unable to pull casing contact COGCC for plugging modifications.
3) For 1560' plug: pump plug and displace, shut-in, WOC 4 hours and tag plug – must be 450’ or shallower to isolate Laramie Fox Hills aquifer from shallower Lower Arapahoe aquifer. Increase cement volumes accordingly.
4) Properly abandon flowlines as per Rule 1103. File electronic Form 42 once abandonment complete.
5) Please verify production casing cement volumes pumped through DV tool and update either wellbore diagram or form 6 (s) with correct cement volumes (Form 5 and 6 (i) list 675 sxs whereas attached WBD lists 975 sxs).
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