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| Pressurized String Shot http://www.epgeology.com/reservoir-engineering-f10/pressurized-string-shot-t1552.html |
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| Author: | Jim Johnson [ Thu Nov 10, 2011 7:06 pm ] |
| Post subject: | Pressurized String Shot |
The method includes firing a string shot UNDER PRESSURE in the vicinity of The desired fractures which will initiate fractures in every direction. The Fractures must then be extended and propped by conventional methods. (See articles) The well stimulated was API #04 Kettleman N Dome Field 11-22S-17E Kings County, California 3-1-2001 Before stimulation the well pumped 9 B per day. After stimulation the well flowed 100 B per day. The packer depth was 8,790 ft Perfs 8,825 to 8,855. Total perfs 216 Charge: 4 strands 80 grain per ft HMX primacord 20 ft long Centered at 8854 ft Fired at surface pressure of 2,000 lb 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 at about 100 B per day. Well was stimulated by BJ using 46,500 gals of fluid and 126,500 lbs of proppant. |
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