发明名称 |
MODIFIED CELLULOSIC POLYMER FOR IMPROVED WELL BORE FLUIDS |
摘要 |
<p>The invention provides a method comprising: providing a drilling fluid, completion fluid, or workover fluid comprising an aqueous base fluid and a nonionic cellulose ether polymer having hydroxyethyl groups and being further substituted with one or more hydrophobic substituents, and placing the drilling fluid, completion fluid, or workover fluid in a subterranean formation.</p> |
申请公布号 |
EP2794808(A1) |
申请公布日期 |
2014.10.29 |
申请号 |
EP20110805561 |
申请日期 |
2011.12.21 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
EZELL, RYAN G.;PARTAIN, EMMETT M. |
分类号 |
C09K8/10;C08L1/28 |
主分类号 |
C09K8/10 |
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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