Method of oil recovery

Details Method of oil recovery Method of oil recovery

1985-08-12

1987-03-10

Novosad, Stephen J.

Wells

Processes

Vibrating the earth or material in or being placed in the...

E21B 4325

Patent

active

046484493

ABSTRACT:
A method of recovering petroleum fluids from an underground reservoir comprising the steps of: injecting into the reservoir a substantially water insoluble gas; generating and directing soundwaves into the reservoir to release petroleum fluids retained therein; and producing the released petroleum fluids through a well communicating with the reservoir. In an alternate embodiment of the invention, after sufficient water insoluble gas is injected forcing water in the reservoir downwardly and forming a water/oil/gas interface, water and/or oil soluble gas may be injected into the reservoir.

REFERENCES:
patent: 3422894 (1969-01-01), Brandon
patent: 3794114 (1974-02-01), Brandon
patent: 3952800 (1976-04-01), Bodine
patent: 4417621 (1983-11-01), Medlin et al.

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