Selective steam foam soak oil recovery process

Details Selective steam foam soak oil recovery process Selective steam foam soak oil recovery process

1983-09-07

1985-08-06

Suchfield, George A.

Wells

Processes

Heating, cooling or insulating

166309, E21B 4324

Patent

active

045329931

ABSTRACT:
In a steam soak oil recovery process in a heavy oil reservoir which is susceptible to gravity override, improved results are obtained by injecting the steam in the form of a steam-foam-forming mixture which has a chemical selectivity for being more mobile within the reservoir in contact with the reservoir oil than in the absence of that oil.

REFERENCES:
patent: 3412793 (1968-11-01), Needham
patent: 3455392 (1969-07-01), Prats
patent: 3464491 (1969-09-01), Froning
patent: 3994345 (1976-11-01), Needham
patent: 4068717 (1978-01-01), Needham
patent: 4086964 (1978-05-01), Dilgren et al.
patent: 4161217 (1979-07-01), Dilgren et al.
patent: 4393937 (1983-07-01), Dilgren et al.
patent: 4445573 (1984-05-01), McCaleb

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