Method for treating oil-water emulsions and recovering surfactan

Details Method for treating oil-water emulsions and recovering surfactan Method for treating oil-water emulsions and recovering surfactan

1983-09-06

1986-05-20

Willis, Prince E.

Compositions

Preservative agents

Anti-corrosion

252 855R, 252328, 252331, 252358, 252346, 252348, C10M11910, C09K 300

Patent

active

045899983

ABSTRACT:
To improve the separation of a produced oil-water emulsion containing a surfactant, the emulsion parameters of temperature and salinity are brought within certain critical limits. The emulsion will separate into an injectable brine/surfactant phase and a pipeline quality crude oil phase. The operable salinity range is from about 70% to about 130% of the reservoir salinity, and the operable temperature range is from about 75.degree. F. lower to about 75.degree. F. higher than the temperature of the reservoir from which the emulsion was produced.

REFERENCES:
patent: 4182690 (1980-01-01), Suzuki

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