Quaternary ammonium salts as thickening agents for aqueous...

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component

Reexamination Certificate

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C507S244000, C507S922000, C166S308200, C516S059000

Reexamination Certificate

active

10070282

ABSTRACT:
This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improved gelling characteristics.

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