Profile control process for use under high temperature reservoir

Details Profile control process for use under high temperature reservoir Profile control process for use under high temperature reservoir

1989-10-16

1990-12-04

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166272, 166274, 166295, 166288, 523130, E21B 33138, E21B 4322, E21B 4324

Patent

active

049746774

ABSTRACT:
A process for selectively plugging zones of high permeability within an oil-bearing subterranean formation. The process of the present invention comprises the steps of injecting into the formation a high temperature selective gel-forming composition comprising an aqueous solution of a high molecular weight polyacrylamide having 30 percent or less hydrolysis, and an effective amount of a crosslinking agent which is a mixture of a phenolic component and an aldehyde, and gelling the solution in-situ by thermally reacting said gel-forming composition at a temperature effective to promote gelation. The resultant gel is exceptionally thermally stable and, therefore, can be used as an effective profile control agent in all thermal enhanced oil recovery operations, including steam flooding. Also provided is a process for recovering oil from a subterranean oil-bearing formation.

REFERENCES:
patent: 3344063 (1967-09-01), Stratton
patent: 4009755 (1901-03-01), Sandiford
patent: 4069869 (1978-01-01), Sandiford
patent: 4155405 (1979-05-01), Vio
patent: 4413680 (1983-11-01), Sandiford et al.
patent: 4440228 (1984-04-01), Swanson
patent: 4444261 (1984-04-01), Islip
patent: 4461351 (1984-07-01), Falk
patent: 4461352 (1984-07-01), Falk
patent: 4485875 (1984-12-01), Falk
patent: 4744418 (1988-05-01), Sydansk
patent: 4799548 (1989-01-01), Mumallah et al.
patent: 4804043 (1989-02-01), Shu et al.
patent: 4844168 (1989-07-01), Sydansk

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