| Engineer | Form: (06 )
400724807
1/2/2015 | 1) Submit Form 42 electronically to COGCC 48 hours prior to MIRU.
2) No CBL on file. Run CBL to verify the top of primary cement is at least 200’ over Niobrara, at least 50’ below Sussex to 200’ above Sussex, and adequately isolates the Fox Hills aquifer. If cement does not exist as required, provide this coverage as part of this plugging project. Use CBL results to verify the setting depth of and stage cement pumped through the DV tool. If DV tool cement missing,add cement behind production casing or cut casing deeper to ensure Fox Hills aquifer isolation. Add cement in casing across and 50' above and below DV tool as part of this plugging project.
3) If unable to pull casing contact COGCC for plugging modifications.
4) For 420' plug: pump plug and displace, shut-in, WOC 4 hours and tag plug – must be 164’ or shallower.
5) Properly abandon flowlines as per Rule 1103. File electronic Form 42 once abandonment complete.
6) Please submit gyro survey data with Form 6 (s) Subsequent Report of Abandonment. |