Method for surfactant waterflooding in a high brine environment

Details Method for surfactant waterflooding in a high brine environment Method for surfactant waterflooding in a high brine environment

1982-07-01

1984-08-07

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 252 855D, E21B 4322

Patent

active

044638060

ABSTRACT:
An improved recovery process is provided for fluent petroleum in a porous formation having spaced injection means and production well recovery means which includes a concentrated brine drive and surfactant carrier system. Advantageously, an effective aqueous surfactant composition is formulated containing a water-soluble ether-linked sulfonate surfactant, a cosolvent alcohol, and at least one cosurfactant (as for example, petroleum sulfonate or alkylbenzene sulfonate) or sacrificial sulfonate material in a concentrated brine carrier.

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