| 发明名称 |
COMPOSITION FOR A LIGHTWEIGHT CEMENT SLURRY FOR CEMENTING OIL AND GAS WELLS |
| 摘要 |
<p>A lightweight cement slurry composition having a density in the range of 1.2 to 1.6, containing a solid extender agent and an SBR latex. The ratio of the liquid volume to the slurry volume should be less than 70% and preferably less than 63%. The lightweight slurry then presents a most attractive set of properties which could not be obtained previously, and in particular gas channelling is controlled. Sole figure</p> |
| 申请公布号 |
CA1261131(A) |
申请公布日期 |
1989.09.26 |
| 申请号 |
CA19860510341 |
申请日期 |
1986.05.29 |
| 申请人 |
DOWELL SCHLUMBERGER CANADA INC. |
发明人 |
PARCEVAUX, PHILIPPE;SAULT, PATRICK |
| 分类号 |
C04B24/26;C04B28/02;C09K8/42;(IPC1-7):E21B33/14 |
主分类号 |
C04B24/26 |
| 代理机构 |
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