| 发明名称 |
SLAG CEMENT AND PROCESS USING HYDROPHOBICALLY MODIFIED GALACTOMANNANS AS FILTRATE REDUCTANTS |
| 摘要 |
For controlling filtration loss during the installation of climber cement in a well, the procedure entails the addition of a specific quantity of at least one derivative of galactomannan, hydrophilically and hydrophobically modified, a hydrophobically modified hydroxy propyl guar (HMHPG). |
| 申请公布号 |
EP0833802(B1) |
申请公布日期 |
2008.10.01 |
| 申请号 |
EP19970920780 |
申请日期 |
1997.04.17 |
| 申请人 |
INSTITUT FRANCAIS DU PETROLE;LAMBERTI S.P.A. |
发明人 |
AUDIBERT, ANNIE;ARGILLIER, JEAN-FRANCOIS;PFEIFFER, UGO;MOLTENI, GUISEPPE |
| 分类号 |
C04B24/38;C04B28/08;C09K8/20;C09K8/46;C09K8/487;C09K8/90;E21B43/25 |
主分类号 |
C04B24/38 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
