Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jun Zheng0
Osama M. Musa0
David Farrar0
Janice Jianzhao Wang0
Date of Patent
July 17, 2018
Patent Application Number
15478124
Date Filed
April 3, 2017
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.
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