Surfactant oil recovery process usable in a formation having hig

Details Surfactant oil recovery process usable in a formation having hig Surfactant oil recovery process usable in a formation having hig

1978-06-29

1979-05-15

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166274, 252 855D, E21B 4322

Patent

active

041543017

ABSTRACT:
In the recovery of oil from an oil-bearing formation having a high salinity connate water wherein an aqueous surfactant slug containing a commercially available petroleum sulfonate is injected followed by the injection of an aqueous drive agent, improved recovery is obtained, if a cosurfactant and a mono-unsaturated secondary alcohol are added to the surfactant slug.

REFERENCES:
patent: 3477511 (1969-11-01), Jones et al.
patent: 3500919 (1970-03-01), Holm
patent: 3508612 (1970-04-01), Reisberg et al.
patent: 3811505 (1974-05-01), Flournoy et al.
patent: 3811507 (1974-05-01), Flournoy et al.
patent: 3865187 (1975-02-01), Carlin et al.
patent: 3920073 (1975-11-01), Holm
patent: 4066124 (1978-01-01), Carlin et al.
patent: 4077471 (1978-03-01), Shupe et al.

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