Salt-tolerant, thermally-stable rheology modifiers

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United States of America Patent

PATENT NO 10023782
SERIAL NO

15478124

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
ISP INVESTMENTS LLC1011 CENTRE ROAD SUITE 315 WILMINGTON DE 19805

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Farrar, David Idle Bradford, GB 4 15
Musa, Osama M Bedminster, US 138 684
Wang, Janice Jianzhao Hockessin, US 11 92
Zheng, Jun Morris Plains, US 257 2329

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