2010-09-22_REPORT - M1983194

• Permit No: M1983194
• IBM Index Class Name: REPORT
• Doc Date: 9/22/2010
• Doc Name: 1A-5HR Plugging and Abandonment Report
• From: Daub & Associates, Inc.
• To: BLM
• Email Name: THM
• Media Type: D
• Archive: No

Rocky Mountain Wireline Service (RMWS) based out of Grand Junction, Colorado,
performed the secondary perforation operations prior to the P&A.
Daub & Associates, Inc. (D&A), based in Grand Junction, Colorado, engineered the P&A
and secured the contract. A geologist from D&A was on-site during all phases of the
abandonment operation, provided field coordination-supervision, and quality control of
the P&A activity. The D&A geologist performed the following duties:
• provided QA/QC of all operations
• maintained a chronological log of daily activities
• coordinated contractor operations
• provided cost tracking and reporting
Downhole Video Operations
On July 13, 2010 at 10:30 hrs, Jet West set up over the IA-5HR to run a video camera
downhole in an attempt to locate the casing cuts that were made in the 7.625 inch liner in
July of 2008. The camera was run from the surface to a depth of 2132 feet, at which
point the decision was made to stop the log due to extreme hole deviation. The attempted
casing cuts were identified at the depths of 1836 feet and 1840.5 feet. It was noted that
the casing cut did not pass all the way through the casing.
A second video log was run using a 3.5 inch sidescan camera on July 14, 2010 at 08:40
hrs in an attempt to locate a casing cut at a depth of approximately 1756 feet. Water level
was noted at a depth of 545 feet, and at a depth of 1756.3 feet, scored casing was
identified. The Daub geologist noted that the casing cut did not appear to pass all the
way through the casing.
Bridge Plug and Perforation Operations--First Phase
On August 30, 2010 at 09:30 hrs, Jet West ran a 6.363 inch gauge ring into the hole to
identify any possible tight spots in the casing prior to running the CIBP. No casing issues
were identified, as the gauge ring was able to be run to a depth of 2110 feet, and the tool
was brought out of the hole slowly so as to locate the casing collars. At 11:00 hrs Jet
West ran in the hole with a 7.625 inch CIBP and Baker setting tool. The CIBP was
successfully set at the depths of 1912 feet to 1914 feet by 13:15 hrs.
At 13:45 hrs, Jet West ran in the hole with a 3.5 inch select-fire hollow steel carrier
perforation gun to perform the initial perforation operations on the 7.625 inch liner. Jet
West perforated two three-foot intervals with two 3/8 inch shots per foot with 120 degree
phasing. The first interval was between the depths of 1882 and 1885 feet, and a total of
six shots were made across this interval. The second perforated interval was between the
depths of 1902 and 1905 feet. A total of six shots were fired across this interval. Upon
pulling out of the hole, the water level was noted to have dropped approximately 100 feet
to a depth of 650 feet at this time. After confirming that all shots were fired (12 total), Jet
West rigged down and moved off location by 14:45 hrs on August 30, 2010. The
Daub & Associates, Inc. Page 2 of 7 Printed: 9/21/2010
1 A-5HR Plug and Abandonment Report