发明名称 |
Brine fluids having improved rheological characteristics |
摘要 |
<p>The invention provides brine based well drilling and servicing fluids which exhibit relatively thermally stable rheological and filtration characteristics. The fluids comprise a brine, an amorphous silica viscosifier, a biopolymer viscosifier, a fluid loss control additive, and a bridging agent. By utilizing both a silica viscosifier and a biopolymer viscosifier to provide the desired rheological characteristics, the fluids have enhanced thermal stability thus maintaining their suspension and hole cleaning properties over an extended temperature range.</p> |
申请公布号 |
EP0786507(A1) |
申请公布日期 |
1997.07.30 |
申请号 |
EP19960305404 |
申请日期 |
1996.07.23 |
申请人 |
TEXAS UNITED CHEMICAL COMPANY, LLC. |
发明人 |
DOBSON, JAMES W.;ROCK, RONALD LEE |
分类号 |
C09K8/04;C09K8/08;C09K8/10;C09K8/16;(IPC1-7):C09K7/02 |
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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