Method for treating oil-water emulsions and recovering...

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

C - Chemistry, Metallurgy

10

G

134/54

C10G 33/00 (2006.01) B01D 17/04 (2006.01)

Patent

CA 1204364

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°F lower to about 75°F higher than the temperature of the reservoir from which the emulsion was produced.

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