Technique for increased retention time in oil field settling...

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

C - Chemistry, Metallurgy

10

G

196/206

C10G 33/00 (2006.01)

Patent

CA 1148106

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.

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