发明名称 |
Cement Compositions Comprising Environmentally Compatible Defoaming Agents and Methods of Use |
摘要 |
Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecithin and a solvent; and contacting the well fluid with the defoaming agent so that the amount of foam present in the well fluid is reduced.
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申请公布号 |
US2008023199(A1) |
申请公布日期 |
2008.01.31 |
申请号 |
US20070860308 |
申请日期 |
2007.09.24 |
申请人 |
SZYMASKI MICHAEL J;WILSON J M;LEWIS SAMUEL J;WAUGH BRYAN K |
发明人 |
SZYMASKI MICHAEL J.;WILSON J. M.;LEWIS SAMUEL J.;WAUGH BRYAN K. |
分类号 |
E21B43/26;E21B37/06;E21B43/00 |
主分类号 |
E21B43/26 |
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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