发明名称 |
Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions |
摘要 |
The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophilically modified water-soluble polymer; placing the cement composition into the subterranean formation; and allowing the cement composition to set therein. In certain embodiments, the water-soluble hydrophobically modified polymer or the hydrophilically modified water-soluble polymer may include a polymer backbone that comprises polar heteroatoms. In another embodiment, the water-soluble hydrophobically modified polymer may be a reaction product of a hydrophobic compound with a polyvinylamine, a poly(vinylamine/vinyl alcohol), or an alkyl acrylate polymer.
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申请公布号 |
US7216707(B2) |
申请公布日期 |
2007.05.15 |
申请号 |
US20040872997 |
申请日期 |
2004.06.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
EOFF LARRY S.;DALRYMPLE ELDON D.;REDDY B. RAGHAVA |
分类号 |
E21B33/138;C04B24/16;C04B24/26;C04B24/28;C04B24/38;C09K8/487;E21B33/13 |
主分类号 |
E21B33/138 |
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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