| 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(A2) |
申请公布日期 |
1993.01.07 |
| 申请号 |
EP19920110580 |
申请日期 |
1992.06.23 |
| 申请人 |
GEOCHEMICAL CORPORATION;CLARKE, WILLIAM J. |
发明人 |
CLARKE, WILLIAM J. |
| 分类号 |
C04B7/52;C04B28/08;C09K8/46;C09K8/504;C09K17/02;E21B33/138;G21F9/30 |
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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