Invention Grant
US08997866B2 Cement compositions comprising lignite-based grafted copolymers and methods of use
有权
包含褐煤基接枝共聚物的水泥组合物和使用方法
- Patent Title: Cement compositions comprising lignite-based grafted copolymers and methods of use
- Patent Title (中): 包含褐煤基接枝共聚物的水泥组合物和使用方法
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Application No.: US13436556Application Date: 2012-03-30
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Publication No.: US08997866B2Publication Date: 2015-04-07
- Inventor: Matthew G. Kellum , Lance E. Brothers
- Applicant: Matthew G. Kellum , Lance E. Brothers
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Tumey L.L.P.
- Agent Craig W. Roddy
- Main IPC: E21B33/138
- IPC: E21B33/138 ; C09K8/50
Abstract:
A method of cementing in a subterranean formation may comprise: introducing a cement composition comprising cement, water, and a lignite-based copolymer into a subterranean formation, wherein the lignite-based copolymer comprises a lignite backbone, a first grafted monomer selected from the group consisting of -acrylamido-2-methylpropanesulfonic acid, a salt of 2-acrylamido-2-methylpropanesulfonic acid, and a second grafted monomer comprising N,N-dimethylacrylamide; and allowing the cement composition to set in the subterranean formation, wherein cement composition has a transition time of less than or equal to about 150 minutes.
Public/Granted literature
- US20130255949A1 Cement Compositions Comprising Lignite-Based Grafted Copolymers and Methods of Use Public/Granted day:2013-10-03
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