发明名称 |
METHOD OF CEMENTING GAS OR OIL PIPELINE AND HYDRAULIC CEMENT SLURRY |
摘要 |
The present invention relates to a method of cementing a casing of an oil or gas pipeline to a surrounding well wall, where an hydraulic cement slurry is formed and the slurry is deployed in the annulus between the pipeline casing and the surrounding well wall. The cement slurry is formed by mixing together an hydraulic cement 12 to 24% of silica based on the weight of cement, and water; wherein the silica comprises 1/3 to 2/3 microfine silica and 2/3 to 1/3 silica flour. The invention further relates to a cement slurry for use in the method. |
申请公布号 |
EP2061857(A4) |
申请公布日期 |
2010.07.28 |
申请号 |
EP20070808620 |
申请日期 |
2007.08.29 |
申请人 |
ELKEM AS |
发明人 |
REVIL, PHILIPPE;ROSTOEL, FRANK VIDAR |
分类号 |
C09K8/467;C04B14/06;C04B28/02;C04B111/74 |
主分类号 |
C09K8/467 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|