Invention Application
- Patent Title: SALT-TOLERANT, THERMALLY-STABLE RHEOLOGY MODIFIERS
- Patent Title (中): 耐盐碱，耐热稳定的流变学改性剂
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Application No.: PCT/US2011/057718Application Date: 2011-10-25
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Publication No.: WO2012061147A1Publication Date: 2012-05-10
- Inventor: WANG, Janice, Jianzhao , ZHENG, Jun , FARRAR, David , MUSA, Osama, M.
- Applicant: ISP INVESTMENTS INC. , WANG, Janice, Jianzhao , ZHENG, Jun , FARRAR, David , MUSA, Osama, M.
- Applicant Address: 1011 Centre Road Suite 315 Wilmington, DE 19805 US
- Assignee: ISP INVESTMENTS INC.,WANG, Janice, Jianzhao,ZHENG, Jun,FARRAR, David,MUSA, Osama, M.
- Current Assignee: ISP INVESTMENTS INC.,WANG, Janice, Jianzhao,ZHENG, Jun,FARRAR, David,MUSA, Osama, M.
- Current Assignee Address: 1011 Centre Road Suite 315 Wilmington, DE 19805 US
- Agency: DAVIS, William, J. et al.
- Priority: US61/406,402 20101025
- Main IPC: C09K8/58
- IPC: C09K8/58 ; C09K8/588 ; E21B43/22
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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