发明名称 |
DRILLING AND CEMENTING A WELL |
摘要 |
<p>A slim hole well is drilled using a drilling fluid comprising blast furnace slag and water which drilling fluid is circulated during the drilling to lay down a filter cake. Thereafter, an activator is added and generally, an alkaline material and additional blast furnace slag, to produce a cementitious slurry which is passed down a casing and up into an annulus to effect primary cementing.</p> |
申请公布号 |
WO9409252(A1) |
申请公布日期 |
1994.04.28 |
申请号 |
WO1993EP02932 |
申请日期 |
1993.10.21 |
申请人 |
SHELL CANADA LIMITED;SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
COWAN, KENNETH, MICHAEL;HALE, ARTHUR, HERMAN |
分类号 |
C04B28/08;C09K8/14;C09K8/46;E21B33/14;(IPC1-7):E21B33/13 |
主分类号 |
C04B28/08 |
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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