2013-11-04_HYDROLOGY - M1983194 ‎(2)‎

• Permit No: M1983194
• IBM Index Class Name: Hydrology
• Doc Date: 11/4/2013
• Doc Name: Natural Soda, Inc Recovery Well 10H-IV Well Completion Report
• From: Daub & Associates, inc
• To: DRMS
• Email Name: THM
• Media Type: D
• Archive: No

top of cement was tagged. The drill out of cement plug number 1 began on July 9, 2013 at
16:40 hours. The shaker was bypassed to preserve some LCM in the mud for drilling ahead
through the remainder of the L5 member. Capstar began drilling new formation at 17:15
hours and drilled 15 feet to 1,955 feet MD KB in the L5 stratigraphic zone of the Parachute
Creek Member. At this depth, circulation was lost again.
Halliburton was called to spot a second cement plug. The cement crew arrived onsite at
23:45 hours on July 9, 2013. They rigged up and pressure tested lines prior to pumping 10
barrels of 10% CaCI water, a 10 barrel fresh water spacer, 10 barrels of SuperFlush, a 5
barrel fresh water spacer, 8 barrels of PlugCem ( 25 sacks, 8.49 gal /sack water, 13.5 ppg,
1.79 cubic feet per sack). This mixture was displaced with 26 barrels of fresh water and
the drill pipe was pulled back to 1,690 feet MD KB. Sixty -five barrels of fluid was pumped
down the annulus with no returns to surface. The cement job ended with the fluid level
still dropping and the well unable to hold fluid.
NSI stakeholders were advised of the situation and Cement Plug No. 3 was planned.
Capstar tripped out of the hole and laid down the HWDP. The pipe was tripped back in the
hole open -ended to 1,920 feet to pump the third cement plug. The mixing and pumping
sequence for the third plug began at 16:20 hours on July 10, 2013, and was as follows: 10
barrels of 10% CaCI water, 10 barrel fresh water spacer, 10 barrels of SuperFlush spacer, a
7 barrel fresh water spacer, and 8 barrels of 13.5 ppg PlugCem mixed with 8 pounds of
TuffFiber. This was displaced with 26 bbls of fresh water and allowed to set up for 2 hours;
then another 10 to15 barrels of water was pumped down the annulus in an attempt to
squeeze some cement into formation. After waiting 10 hours, more fluid was pumped
downhole with no returns to surface. It was decided to spot a fourth cement plug. The
geologist reported that the losses occurred in the lower portion of the L5 stratigraphic
zone.
Halliburton was onsite at 03:00 hours on July 11, 2013, and rigged up. The lines were
pressure tested to 5,000 psi, and Cement Plug No. 4 was mixed and pumped in the
Daub & Associates, Inc. Page 6 of 13 10H -1V Well Summary Report