Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2008-04-15
2008-04-15
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S244000, C507S922000, C166S308200, C516S059000
Reexamination Certificate
active
07358215
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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Burgazli Cenk
Feuerbacher Dave
Subramanian Shankar
Zhu Shawn
Zhu Yun-peng
Akzo Nobel Surface Chemistry LLC
Gulakowski Randy
Kugel Timothy J.
Mancini Ralph J.
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