Flooding with micellar dispersions containing petroleum sulfonat

Details Flooding with micellar dispersions containing petroleum sulfonat Flooding with micellar dispersions containing petroleum sulfonat

1975-03-27

1977-03-22

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166274, 166275, 166252, 252 855D, E21B 4322

Patent

active

040131254

ABSTRACT:
Flooding of a subterranean formation with micellar dispersions containing petroleum sulfonates obtained by sulfonating whole or topped crude oil is improved through the use of a micellar dispersion of a predetermined viscosity containing an amount of cosurfactant in excess of that required to cause the micellar dispersion to have the highest viscosity possible for the particular micellar dispersion with the particular cosurfactant used. Preferably, the cosurfactant is an alcohol and the cosurfactant concentration is sufficiently high to control the micellar dispersion to have a predetermined mobility when injected into a hydrocarbon-bearing formation.

REFERENCES:
patent: 3254714 (1966-06-01), Gogarty et al.
patent: 3275075 (1966-09-01), Gogarty et al.
patent: 3330345 (1967-07-01), Henderson et al.
patent: 3477511 (1969-11-01), Jones et al.
patent: 3536136 (1970-10-01), Jones
patent: 3753465 (1973-08-01), Denekas
patent: 3827496 (1974-08-01), Schroeder

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