Method of improving CO.sub.2 foam enhanced oil recovery process

Details Method of improving CO.sub.2 foam enhanced oil recovery process Method of improving CO.sub.2 foam enhanced oil recovery process

1987-03-06

1987-11-17

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166272, 166274, 166299, E21B 4324, E21B 4326, E21B 43263

Patent

active

047067500

ABSTRACT:
Oil is recovered from a subterranean oil-containing formation by fracturing the formation around the injection well and thereafter injecting a CO.sub.2 foam or a mixture of steam and a CO.sub.2 foam into the injection well to displace mobilized oil toward a production well for recovery.

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patent: 4516636 (1985-05-01), Doscher
patent: 4548252 (1985-10-01), Stowe et al.
patent: 4590997 (1986-05-01), Stowe
patent: 4610304 (1986-09-01), Doscher

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