The method includes firing a string shot UNDER PRESSURE in the vicinity of the desired fractures.
This will initiate fractures in every direction (see attachment) which must then be extended and
Propped by conventional methods.
Kettleman N Dome Field
Kings County, California
March 1, 2001
Packer 8,790 Ft.
Perfs from 8825 to 8850—4 per ft total 120
Charge centered at 8854 ft.
Charge—4 strands 80 grain/ft HMX Primacord 20 ft long.
Fired at surface pressure of about 2,000 lbs per ft.
Post frac model matches frac data by assuming 4 parallel fracs, indicating possible
Branches to natural fracs or sand stringers some distance from the wellbore.
After cleanup, well flowed about 100 B per day.
James Johnson JamJohns214@cs.com
Los Alamos, New Mexico