Method of fracturing a geological formation

Details Method of fracturing a geological formation Method of fracturing a geological formation

1987-11-16

1990-02-27

Neuder, William P.

Wells

Processes

With explosion or breaking container to implode

166308, 299 13, E21B 4317

Patent

active

049037722

ABSTRACT:
An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.

REFERENCES:
patent: 2676662 (1954-04-01), Ritzmann
patent: 2988143 (1961-06-01), Scotby
patent: 3313234 (1967-04-01), Mohaupt
patent: 3964792 (1976-06-01), Archibald
patent: 4018293 (1977-04-01), Keller
patent: 4049056 (1977-09-01), Godfrey
patent: 4091870 (1978-05-01), Godfrey et al.
patent: 4345650 (1982-08-01), Wesley
patent: 4451088 (1984-05-01), Wisseroth

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