Technique for increased retention time in oil field settling tan

Details Technique for increased retention time in oil field settling tan Technique for increased retention time in oil field settling tan

1984-12-13

1986-10-28

Cintins, Ivars

Liquid purification or separation

Processes

Separating

210800, 2105121, 210519, B01D 2124

Patent

active

046197710

ABSTRACT:
A technique for continuous gravity separation of a produced oil and water emulsion has particular utility in separating water for reinjection during a waterflood secondary recovery operation without loss of saleable oil. The method employs a flow direction means to introduce the produced oil-water emulsion into a large volume settling tank substantially tangential to the tank wall and then withdraws the separated oil and water. The apparatus of the instant invention comprises: (a) a tank, (b) an oil-water inlet means, (c) a flow direction means connected to the oil-water inlet means to direct the oil-water emulsion into the settling tank tangential to the tank wall, (d) a bottom-center located water outlet pipe, and (e) an oil outlet pipe.

REFERENCES:
patent: 3675771 (1972-07-01), McKee
patent: 4035302 (1977-07-01), Seo et al.

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