Aqueous surfactant mixtures, and the use thereof in the recovery

Details Aqueous surfactant mixtures, and the use thereof in the recovery Aqueous surfactant mixtures, and the use thereof in the recovery

1989-03-08

1990-11-13

Stoll, Robert L.

Compositions

Leather or fur treating

166275, 166274, F21B 4322

Patent

active

049700073

ABSTRACT:
Surfactant mixtures made from 5 to 80% by weight of an ether sulfonate, 5 to 80% by weight of an alkyl or alkylphenol polyglycol ether and 10 to 80% by weight of an alkanesulfonate, petroleumsulfonate or alkylbenzenesulfonate. This combination of surfactants produces stable, aqueous solutions or dispersions which are highly suitable for surfactant flooding in tertiary oil recovery since these aqueous surfactant solutions or dispersions form microemulsions with the oil even at high salinities.

REFERENCES:
patent: 4018278 (1977-04-01), Shupe
patent: 4077471 (1978-03-01), Shupe et al.
patent: 4088189 (1978-05-01), Shupe
patent: 4194565 (1980-03-01), Kalfoglou
patent: 4269271 (1981-05-01), Shupe et al.

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