发明名称 |
Blast furnace slag spacer |
摘要 |
A spacer fluid containing blast furnace slag is utilized in a well drilling operation. In one embodiment an oil emulsion drilling fluid is displaced using spacer fluid comprising water, blast furnace slag and a surfactant. In another embodiment a spacer fluid comprising blast furnace slag and water is used in the cementing of an annulus surrounding a pipe with a blast furnace slag cementitious slurry.
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申请公布号 |
US5316083(A) |
申请公布日期 |
1994.05.31 |
申请号 |
US19920999239 |
申请日期 |
1992.12.31 |
申请人 |
SHELL OIL COMPANY |
发明人 |
NAHM, JAMES J. W.;WYANT, REECE E. |
分类号 |
C04B28/02;C04B28/28;C09K8/46;(IPC1-7):E21B33/16 |
主分类号 |
C04B28/02 |
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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