Oxidized alkali lignins and their use in enhanced oil recovery

Details Oxidized alkali lignins and their use in enhanced oil recovery Oxidized alkali lignins and their use in enhanced oil recovery

1984-07-02

1986-09-16

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166275, 252 8554, E21B 4322

Patent

active

046116591

ABSTRACT:
A method of enhanced oil recovery comprising injecting a surfactant system comprised of an oxidized alkali lignin and an anionic and/or nonionic surfactant into a formation containing oil and producing the oil thus mobilized.

REFERENCES:
patent: 1823440 (1931-09-01), DeGroote
patent: 3664419 (1972-05-01), Holm
patent: 4006779 (1977-02-01), Kalfoglou
patent: 4133385 (1979-01-01), Kalfoglou
patent: 4273191 (1981-06-01), Hradel
patent: 4313500 (1982-02-01), Johnson, Jr. et al.
patent: 4463806 (1984-08-01), Hurd

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