Method for profile control of enhanced oil recovery

Details Method for profile control of enhanced oil recovery Method for profile control of enhanced oil recovery

1989-01-03

1990-02-27

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166272, 166273, 166288, 166295, E21B 33138, E21B 4322, E21B 4324

Patent

active

049037684

ABSTRACT:
A process for profile control in a high permeability zone of a formation. A water flooding or carbon dioxide stimulation enhanced oil recovery (EOR) process is conducted in an an oil-containing formation having a high permeability zone. After breakthrough occurs, the EOR process is ceased. The high permeability zone is heated to a temperature of 300.degree. F. or higher by steam injection. Subsequently, steam injection is ceased and a temperature activated mixture is injected into the high permeability zone where it forms a solid gel. Thereafter, an EOR process can be used to remove hydrocarbons from a low permeability zone.

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