| 发明名称 |
Cement composition for cementing of wells enabling gas channelling in the cemented annulus to be inhibited by right-angle setting. |
| 摘要 |
<p>The cement compositions according to the invention are designed for cementing wells, in particular oil and gas or geothermal wells, and for withstanding very high temperatures.</p><p>A combination of styrene-butadiene latex and a sulfated polyoxyethylenated nonylphenol stabilizer of this latex is provided. Cement sets at a right angle and gas migration in the annulus is prevented.</p> |
| 申请公布号 |
EP0189950(A1) |
申请公布日期 |
1986.08.06 |
| 申请号 |
EP19860200039 |
申请日期 |
1986.01.10 |
| 申请人 |
ETUDES ET FABRICATION DOWELL SCHLUMBERGER |
发明人 |
SAULT, PATRICK;PARCEVAUX, PHILIPPE;PIOT, BERNARD SERVICES CONSEILS |
| 分类号 |
C04B24/20;C04B28/02;C09K8/42;C09K8/46;(IPC1-7):C04B24/20;E21B33/13 |
主分类号 |
C04B24/20 |
| 代理机构 |
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代理人 |
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| 主权项 |
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