发明名称 |
Method of grouting porous gas- and petroleum-bearing formations |
摘要 |
<p>A method of grouting porous gas - and petroleum - bearing formations with a cementitious material (40) comprising ultrafine ground slag is useful for primary and remedial cementing of a wellbore (37). A composition is provided which comprises water, a dispersant, slag and an accelerator to activate the slag. <IMAGE></p> |
申请公布号 |
EP0521376(B1) |
申请公布日期 |
2000.04.12 |
申请号 |
EP19920110580 |
申请日期 |
1992.06.23 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
CLARKE, WILLIAM J. |
分类号 |
C04B7/52;C04B28/08;C09K8/46;C09K8/504;C09K17/02;E21B33/138;G21F9/30;(IPC1-7):E21B33/138 |
主分类号 |
C04B7/52 |
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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