发明名称 |
Shale inhibition additive for oil/gas down hole fluids and methods for making and using same |
摘要 |
An under-balanced drilling fluid additive is disclosed which reduces reactive shale and/or clay swelling during under-balanced drilling operations, where the additive includes an effective amount of a choline salt. A method for under-balanced drilling is also disclosed including the step of circulating a drilling fluid including an effective amount of a choline salt to reduce reactive shale and/or clay swelling during under-balanced drilling operations.
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申请公布号 |
US7566686(B2) |
申请公布日期 |
2009.07.28 |
申请号 |
US20070891317 |
申请日期 |
2007.08.09 |
申请人 |
CLEARWATER INTERNATIONAL, LLC |
发明人 |
KIPPIE DAVID P.;GATLIN LARRY W. |
分类号 |
C09K8/04;C09K8/12;C09K8/22;C09K8/38;C09K8/68;E21B;E21B43/267 |
主分类号 |
C09K8/04 |
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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