发明授权
US07216707B2 Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions
有权
具有改善的流体损失特性的水泥组合物和使用这种水泥组合物的固井方法
- 专利标题： Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions
- 专利标题（中）： 具有改善的流体损失特性的水泥组合物和使用这种水泥组合物的固井方法
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申请号： US10872997申请日： 2004-06-21
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公开(公告)号： US07216707B2公开(公告)日： 2007-05-15
- 发明人: Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
- 申请人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
- 申请人地址： US OK Duncan
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US OK Duncan
- 代理机构： Baker Botts
- 代理商 Robert A. Kent
- 主分类号： E21B33/138
- IPC分类号： E21B33/138
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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