Method for concentrating surfactant from a brine solution

Details Method for concentrating surfactant from a brine solution Method for concentrating surfactant from a brine solution

1986-02-05

1987-06-30

Novosad, Stephen J.

Wells

Processes

Separating material entering well

252303, 252325, 252 8554, 210910, E21B 4322, E21B 4340

Patent

active

046763155

ABSTRACT:
A method is disclosed for concentrating surfactant in an aqueous solution. The method comprises adding to the solution a component incompatible with the surfactant, such as a water-soluble polymer, thereby displacing the surfactant from the aqueous phase of the solution. The component remains in the aqueous phase and the surfactant goes into a surfactant-rich phase. The surfactant-rich phase can then be separated from the aqueous phase by conventional separation devices or techniques. This method is particularly applicable to concentrating surfactant recovered from a reservoir following an enhanced oil recovery process employing surfactant. The method may be practiced in the field or off-site.

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