Addition of water to emulsions to accelerate coalescence

Details Addition of water to emulsions to accelerate coalescence Addition of water to emulsions to accelerate coalescence

1978-07-20

1980-10-07

Gantz, Delbert E.

Mineral oils: processes and products

Refining

Water removal

208187, C10G 3300, C10G 3304

Patent

active

042267021

ABSTRACT:
Opaque macroemulsions comprising oil and brine are diluted with water to an electrolyte concentration at which rapid coalescence into three phases, oil, a transparent microemulsion, and water is achieved. This is of particular utility in post-primary oil recovery processes wherein said opaque macroemulsions are produced as effluents from producing wells. The opaque macroemulsions are collected and oil therein recovered by dilution as described herein.

REFERENCES:
patent: 1727164 (1929-09-01), Fischer, Jr. et al.
patent: 2310673 (1943-02-01), Blair, Jr.
patent: 2446040 (1948-07-01), Blair, Jr.
patent: 3396100 (1968-08-01), Pettefer
patent: 3469373 (1969-09-01), Lavery et al.
patent: 3888760 (1975-06-01), Ebert
patent: 3977472 (1976-08-01), Graham et al.
patent: 4014801 (1977-03-01), Fullinwider et al.
patent: 4029570 (1977-06-01), Coffman et al.
"Treating Oil Field Emulsions", Petroleum Industry Series, 1st Ed., Ch IV pp. 29-34, issued by Univ. of Texas (1949).

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