发明名称 |
LOST CIRCULATION COMPOSITIONS |
摘要 |
An improved composition and method is provided for preventing or alleviating lost circulation during the drilling of wellbores in subterranean formations, and particularly during the drilling of oil and gas wells. The method is suited for horizontal and directional wells as well as more vertical wells. The composition of the invention comprises a synergistic blend of resilient, angular, carbon-based material and a water-swellable, crystalline synthetic polymer. The method employs the composition of the invention in preventing lost circulation.
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申请公布号 |
WO03062594(A1) |
申请公布日期 |
2003.07.31 |
申请号 |
WO2003GB00117 |
申请日期 |
2003.01.16 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC.;SHAARPOUR, MANO;WAIN, CHRISTOPHER, PAUL |
发明人 |
SHAARPOUR, MANO |
分类号 |
C09K8/24;C09K8/504;C09K8/506;C09K8/508;C09K8/512;(IPC1-7):E21B33/138 |
主分类号 |
C09K8/24 |
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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