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2010-09-08_REPORT - M1983194
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2010-09-08_REPORT - M1983194
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Last modified
8/24/2016 4:21:48 PM
Creation date
9/13/2010 4:58:24 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1983194
IBM Index Class Name
REPORT
Doc Date
9/8/2010
Doc Name
Monitoring Well 93-2M Plugging and Abandonment
From
Daub & Associates, Inc
To
Paul Daggett , White River Field Office
Email Name
THM
Media Type
D
Archive
No
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Perforation Operations <br />On July 13, 2010 at 13:00 hrs, Jet West set up over the 93-2M to perforate the well. Jet <br />West perforated two three-foot intervals with two 3/8 in. shots per foot with 120 degree <br />phasing. The first interval was between the depths of 1230 and 1233 ft, and a total of 6 <br />shots were made across this interval. After confirming that all shots fired, Jet West <br />perforated the second interval between the depths of 1212 and 1215 ft. A total of six <br />shots were fired across this interval. After confirming that all shots for the second run <br />were fired, Jet West rigged down and moved off location by 14:15 hrs on July 13, 2010. <br />The perforation operation was conducted in order to ensure a good annular seal between <br />the Perched and A-Groove Aquifers by way of the subsequent cement plug. <br />Plugging and Abandonment <br />On August 10, 2010 at 6:15 hrs, Sanjel arrived on location with a CTU to perform the <br />P&A. A 4.5 in. coupling was welded onto the well head flange and a sump was dug for <br />fluid returns. Sanjel then performed a pressure test on the fitting to 3000 psi. A 13/8 in. <br />tubing was run to a depth of 1887 ft to clean the hole. After 32 bbls of water were <br />pumped into hole with no returns to surface, it was decided to continue with the P&A <br />without circulation. <br />The first cement lift consisted of 24 sacks of Type "G" cement with 0.7% Cement <br />Friction Reducer (CFR), resulting in 4.92 bbls of 15.8 ppg cement with a 1.15ft3/sack <br />yield. This calculated to approximately 200 feet of lift. After pumping the cement down <br />hole, the tubing was pulled up to a depth of 1593 ft to displace any remaining cement <br />from the tubing. The cement sample at surface was hardening very slowly because no <br />cement accelerator was used in the slurry. It was decided to allow the cement to set up <br />overnight and tag the top of cement in the morning. On August 11, 2010 at 6:30 hrs, <br />Sanjel rigged up and ran in the hole to tag the top of cement and tagged the CIBP at a <br />depth of 1893 ft. The entire first batch of cement was found to be lost to the formation. <br />The second cement lift consisted of 49 sacks of Type "G" cement with 0.7% CFR <br />resulting in 10.04 bbls of 15.8 ppg cement with a 1.15 ft3/sack yield. This calculated to <br />approximately 600 feet of lift. After pumping the cement down hole, the tubing was <br />pulled up to a depth of 1293 ft and the remaining cement was displaced out of it. Sanjel <br />then moved off location to perform a job for another client at 7:45 hrs on August 11, <br />2010. Later that afternoon, Sanjel returned and tagged the top of cement at a depth of <br />1686 ft. <br />The third cement lift pumped down hole consisted of 112 sacks of Type "G" cement with <br />0.7% CFR and 1% calcium chloride, resulting in 22.94 bbls of 15.8 ppg cement with a <br />1.15 ft3/sack yield. This calculated to approximately 1486 ft of lift. Sanjel lifted only 200 <br />feet in order to keep the hydrostatic pressure from exceeding the formation fracture <br />gradient of 0.7 psi/ft at the perforation depth of 1233 ft. The remaining cement was <br />displaced out of the tubing and Sanjel rigged down at 17:00 hrs on August 11, 2010 to let <br />the cement set up overnight. <br />Daub & Associates, Inc. Page 2 of 4 93-2M Plug and Abandonment Report
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