Treatment of oil well production

Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means

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210522, 210540, 210DIG5, 166267, B01D 300

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active

045553327

ABSTRACT:
A vessel in the form of a vertically-extended cylindrical tank receives oil well production containing a difficult-to-treat component. An elongated path for the production is formed within the tank with which to stratify production fluids. The upper stratum is oil containing some percentage of emulsion, the lower stratum is water containing some percentage of emulsion, and the intermediate stratum is a concentration of the remaining difficult-to-treat emulsion. A subsystem is provided for the liquids of each stratum. The subsystem processing the intermediate stratum extracts surfactant which has been used in facilitating production from the earth, and isopropanol utilized to break the bond of oil with the surfactant and water of the emulsion.

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patent: 4364833 (1982-12-01), Loegering
patent: 4416767 (1983-11-01), Jordan
patent: 4425239 (1984-01-01), Jacocks et al.

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