Oil removal from waterflooding injection water

Details Oil removal from waterflooding injection water Oil removal from waterflooding injection water

1988-09-09

1989-06-06

Sever, Frank

Liquid purification or separation

Processes

Separating

209144, 209211, 2105121, B01D 17038

Patent

active

048369357

ABSTRACT:
Produced oil and water from a waterflood operation are initially subjected to a rough separation step producing an oil stream and an oily water stream. The oily water stream is mixed with a high density solvent for the oil, and the resulting mixture is processed in a hydrocyclone to produce clean water and an oil-solvent stream. The clean water is reinjected as additional flooding water, and the oil-solvent stream is separated to produce an oil product and clean solvent which is recycled to the process.

REFERENCES:
patent: 3898061 (1975-08-01), Brunato

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