发明名称 |
Method for control of liquid loss and gas migration in well cementing |
摘要 |
This invention discloses a polymer composition, a cement slurry containing said polymer composition and a method of using the cement slurry to cement a borehole penetrating a subsurface earth formation wherein the polymer composition is made by polymerizing a vinylamide morpholine derivative and at least one branched N-vinylamide derivative in the presence of a humate. The polymer composition operates to reduce fluid loss from the cement slurry to the subsurface formation.
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申请公布号 |
US6085840(A) |
申请公布日期 |
2000.07.11 |
申请号 |
US19980092294 |
申请日期 |
1998.06.05 |
申请人 |
FRITZ INDUSTRIES, INC. |
发明人 |
LARAMAY, STEVEN B.;UDARBE, REBECCA G. |
分类号 |
C04B24/16;C04B24/24;C04B24/26;C08F226/06;C09K8/46;C09K8/487;C09K8/493;(IPC1-7):E21B33/138;E21B33/14 |
主分类号 |
C04B24/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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