Device for stimulating a subterranean formation

Details Device for stimulating a subterranean formation Device for stimulating a subterranean formation

1983-04-08

1985-07-23

Novosad, Stephen J.

Wells

With explosive or gas generating means in well

102313, E21B 2902, E21B 4325

Patent

active

045303967

ABSTRACT:
An apparatus for stimulating a subterranean formation uses a gas generating propellant placed in the well adjacent the formation to be stimulated. The propellant is ignited to generate gas at sufficient pressure and in sufficient volume to fracture the formation to thereby improve its permeability or productivity. The device is designed to generate an initial pressure pulse of substantial amplitude to initiate fractures in the formation. Shortly, the pressure generated by the device falls off to a lower value and is sustained at that value for a relatively substantial length of time.

REFERENCES:
patent: 3066734 (1962-12-01), Meiklejohn
patent: 3313234 (1967-04-01), Mohaupt
patent: 3422760 (1969-01-01), Mohaupt
patent: 3711297 (1973-03-01), Challacombe
patent: 4018293 (1977-04-01), Keller
patent: 4039030 (1977-08-01), Godfrey et al.
patent: 4064935 (1977-12-01), Mohaupt
patent: 4081031 (1978-03-01), Mohaupt
patent: 4248303 (1981-02-01), Charpentier
patent: 4284006 (1981-08-01), Davis

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