Stable mixtures of polymers and surfactants for surfactant flood

Details Stable mixtures of polymers and surfactants for surfactant flood Stable mixtures of polymers and surfactants for surfactant flood

1976-10-08

1977-09-20

Guynn, Herbert B.

Wells

Processes

Distinct, separate injection and producing wells

166275, 252 855D, E21B 4322

Patent

active

040490548

ABSTRACT:
An improved fluid for surfactant flooding a subterranean oil-bearing reservoir is prepared by contacting polymer with fresh water in the substantial absence of a salt; thereafter combining the thus-formed polymer solution and a salt solution; and finally adding a surfactant.

REFERENCES:
patent: 3024191 (1962-03-01), Jones
patent: 3373808 (1968-03-01), Patton
patent: 3573263 (1971-03-01), Gill
patent: 3739848 (1973-06-01), Lawson et al.
patent: 3768560 (1973-10-01), Hill et al.
Pursley et al., Paper SPE 3805 presented at the SPE Improved Oil Recovery Symposium, Tulsa, Okla., Apr. 16-19, 1972.
French et al., Paper SPE 3799 presented at the SPE Improved Oil Recovery Symposium, Tulsa, Okla., Apr. 16-19, 1972.

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