Title: Method for generating horizontal fractures in a wellbore

Abstract: A method for generating a horizontal fracture through a wellbore by causing two explosively induced shear waves to intersect. This is achieved by placing, within a coupling fluid within a wellbore, a length of high explosives whose center is adjacent the location where a fracture is desired. Both ends of the high explosive are ignited simultaneously.

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Inventors: Godfrey, Charles S. (Berkeley, CA, US)
Moore, Jr., E. T. (Berkeley, CA, US)

Application Number: 735676
Filing Date: 1976-10-26
Publication_date: 1978-05-30
Assignee: Physics International Company (San Leandro, CA)
Primary Class(es): 166/299 102/701, 166/63
Other Classes:
US Patent Ref:

2775940	Jan, 1957	Klot, Jr.	102/23.
3002454	Oct, 1961	Chesnut	166/308.
3457859	Jul, 1969	Guenter	102/22.
3637020	Jan, 1972	McLamore	166/299.
3863987	Feb, 1975	Lampard	166/299.

Other Refs:
Primary Examiner: Novosad, Stephen J.
Assistant Examiner:
Attorney: Lindenberg, Freilich, Hornbaker, Wasserman, Rosen & Fernandez