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

and it was noted that the casing appeared free. The free-point tool tagged the top of
cement at a depth of 1828 feet, and at a depth of 1816 feet, the rig pulled with between
40,000 and 120,000 lbs on what appeared to be free pipe. The free-point tool was tripped
out of the hole at this time, and the rig was shut down for the night.
On September 3, 2010 at 08:00 hrs, the decision was made to attempt to cut the casing
joint at 1816 feet. Jet West ran in the hole with a split-shot cutter consisting of a 1 lb
explosive shape charge. The cutter was centered on a casing joint located at a depth of
1816 feet. The 7.625 inch liner was then pulled on with 120,000 lbs and the cutter charge
was set off. There was no initial pipe movement, and the collar locator was run up and
down across the casing joint. The collar locator appeared to indicate an approximately 9
inch separation at a depth of 1816 feet. After pulling the wireline out of the hole, the
casing was worked up and down 15 to 20 times while pulling between 40,000 and
120,000 lbs, and was held with 120,000 lbs for 10 minutes with the casing still not
coming free.
At 09:00 hrs on September 3, 2010, hot water (approximately 180°F) was pumped
downhole to fill the liner up. After working the pipe up and down 15 to 20 times while
pulling between 40,000 and 130,000 lbs, the casing finally pulled free with 130,000 lbs at
09:50 hrs and was noted to have "jumped" 8 to 10 inches. The pipe was pulled up 10 feet
and a string weight of 42,000 lbs at this time indicated approximately 1800 feet of free
pipe. By 17:00 hrs, a total of 1816 feet of the 7.625 inch flush joint liner had been
recovered from the well. A 12 inch vertical cut was found in the last joint.
Perforation Operations--Second Phase
On September 8, 2010, ECWS and RMWS mobilized to the IA-5HR site. At 07:45 hrs
RMWS ran in the hole with a 4 inch select-fire hollow steel carrier perforation gun.
After filling the hole by pumping approximately 1600 gallons of water downhole,
RMWS perforated four two-foot intervals in the 9.625 inch intermediate casing with two
3/8 inch shots per foot with 120 degree phasing. The perforated intervals were between
the depths of 295 to 297 feet, 1495 to 1497 feet, 1530 to 1532 feet, and 1580 to 1582 feet.
After confirming that all shots had fired (16 total), RMWS rigged down by 8:25 hrs on
September 8, 2010. The perforation operation was conducted in order to ensure a good
annular seal between the Perched, A-Groove, and B-Groove Aquifers by way of the
subsequent cement plugs.
Plugging and Abandonment
On September 8, 2010 at 08:25 hrs, ECWS ran in the hole with open ended 2.875 inch
EUE tubing to flush the hole with fresh water prior to plugging. The tubing was run to a
depth of 1816 feet, and approximately 100 bbls of fresh water was pumped downhole to
flush the well.
At 09:50 hrs, WR Aggregates arrived onsite with approximately 220 sacks of Portland
Type UII cement slurry (1.29 lb/sk, 15.0 lb/gal) and set up to pump the cement. In the
Daub & Associates, Inc. Page 4 of 7 Printed: 9/21/2010
lA-5HR Plug and Abandonment Report