Wells – Processes – Distinct – separate injection and producing wells
Patent
1986-12-09
1988-05-17
Suchfield, George A.
Wells
Processes
Distinct, separate injection and producing wells
166294, 166295, 166308, 252 8551, 523130, E21B 33138, E21B 4326
Patent
active
047444185
ABSTRACT:
A process for delaying the gelation rate of a polymer used in oil recovery applications. A gel is prepared by mixing a single aqueous gelation solution at the surface made up of a polyvalent metal cross-linking agent and a polyacrylamide having no hydrolysis or only a limited degree of hydrolysis. The solution is injected into a desired treatment region and gelled to completion in situ.
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Brown Rodney F.
Hummel Jack L.
Marathon Oil Company
Suchfield George A.
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