Method for the resolution of enhanced oil recovery emulsions

Details Method for the resolution of enhanced oil recovery emulsions Method for the resolution of enhanced oil recovery emulsions

1983-09-01

1984-04-24

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Water removal

208187, 210729, 210708, 210735, 210737, 166267, C10G 3300, C10G 3304, E21B 4300

Patent

active

044446543

ABSTRACT:
An oil-in-water emulsion of crude oil, water and hydrophilic surfactant is resolved by first heating said emulsion until it separates into a surfactant laden water layer and an oil-rich emulsion layer, removing the water layer from the oil-rich emulsion layer, treating the emulsion layer by the addition of from 20 to 40 volume percent of water containing a demulsifier and recovering the crude oil which separates from the water upon standing.

REFERENCES:
patent: 3316181 (1967-04-01), Sackis
patent: 4029570 (1977-06-01), Coffman et al.
patent: 4109718 (1978-08-01), Burton
patent: 4261812 (1981-04-01), Newcombe
patent: 4374734 (1983-02-01), Newcombe
patent: 4384950 (1983-06-01), McCoy
patent: 4392944 (1983-07-01), Kessick
patent: 4405015 (1983-09-01), McCoy
Emulsions Theory and Practice, Paul Becher, p. 178, 1-29-83, (TP 156 E6B4e), 1957, Reinhold Pub. Co.

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