发明名称 |
Cementing compositions and application of such compositions to cementing oil (or similar) wells |
摘要 |
<p>The present invention concerns a cementing composition for an oil (or similar) well, based on an aluminous hydraulic cement, fine particles, hollow microspheres, water in a quantity such that the porosity is in the range 25% to 50%, a dispersing agent, a setting accelerator for the aluminous cement and optionally, other conventional additives. The invention is of particular application to cementing conductor pipes in arctic zones or in deep-water wells.</p> |
申请公布号 |
EP0814067(A1) |
申请公布日期 |
1997.12.29 |
申请号 |
EP19970401376 |
申请日期 |
1997.06.17 |
申请人 |
SOFITECH N.V. |
发明人 |
VILLAR, JOHN;BARET, JEAN-FRANCOIS;MICHAUX, MICHEL;DARGAUD, BERNARD |
分类号 |
C04B20/00;C04B28/06;C09K8/46;C09K8/473;(IPC1-7):C04B28/06;C04B38/00;E21B33/13 |
主分类号 |
C04B20/00 |
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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