Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2003-09-12
2008-08-26
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C166S305100, C507S219000
Reexamination Certificate
active
07417011
ABSTRACT:
A method of modifying the permeability to water of a subterranean formation comprising injecting into the subterranean formation an aqueous composition comprising from about 0.005 percent to about 2 percent, by weight, of a water-soluble alkylene oxide branched polyhydroxyetheramine or a salt thereof, wherein the alkylene oxide branched polyhydroxyetheramine is prepared by reacting a diepoxide with one or more alkylene oxide functionalized amines and one or more amines having two reactive hydrogen atoms and optionally reacting the resulting polyhydroxyetheramine with an acid or alkylating agent to form the salt.
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Schlumberger Dictionary Entry for “clay”.
Chang Kin-Tai
Treybig Duane
Gulakowski Randy
Martin Michael B.
Nalco Company
Toscano Alicia M
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