发明名称 |
Mud solidification with slurry of portland cement in oil |
摘要 |
A cementitious slurry is produced by combining an aqueous drilling fluid with a slurry of Portland cement in oil. Generally the drilling fluid is an aqueous drilling fluid containing clay such as prehydrated bentonite. The resulting composition has a particular utility in primary cementing operations for oil wells.
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申请公布号 |
US5370185(A) |
申请公布日期 |
1994.12.06 |
申请号 |
US19930117816 |
申请日期 |
1993.09.08 |
申请人 |
SHELL OIL COMPANY |
发明人 |
COWAN, KENNETH M.;HALE, ARTHUR H. |
分类号 |
C04B28/04;C09K8/16;C09K8/46;(IPC1-7):E21B33/14 |
主分类号 |
C04B28/04 |
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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