| 发明名称 |
Foamed drilling fluids, their process for preparation and the corresponding drilling method |
| 摘要 |
<p>The present invention is directed to an aqueous foamed Drilling Fluid for drilling well bores into a subterranean formation, comprising water, at least one clay and at least one foaming agent. According to the invention, it further comprises at least one metal hydroxide. The invention further relates to a method for preparing said foamed drilling fluid.</p> |
| 申请公布号 |
EP0695795(A1) |
申请公布日期 |
1996.02.07 |
| 申请号 |
EP19940401810 |
申请日期 |
1994.08.04 |
| 申请人 |
SOFITECH N.V.;COMPAGNIE DES SERVICES DOWELL SCHLUMBERGER S.A. |
发明人 |
WILLIAMSON, LARRY DON |
| 分类号 |
C09K8/38;(IPC1-7):C09K7/08 |
主分类号 |
C09K8/38 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
