US PATENT SUBCLASS 166 / 270.1
.~.~ Injecting a composition including a surfactant or cosurfactant

Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
268  DF  .~ Distinct, separate injection and producing wells {7}
270.1.~.~ Injecting a composition including a surfactant or cosurfactant {1}
270.2  DF  .~.~.~> Nonaqueous type

DEFINITION

Classification: 166/270.1

Injecting a composition including a surfactant or cosurfactant

(under subclass 268) A process in distinct, separate wells in which the fluid is a wetting agent that causes the lowering of interfacial tension between two fluids; e.g., water and oil.

(1) Note. The term "surface active agent" also describes this type of material.

SEE OR SEARCH CLASS

507, Earth Boring, Well Treating, and Oil Field Chemistry,

200+, for well treating compositions.