| 发明名称 |
USE OF TERPOLYMERS AS FLUID LOSS ADDITIVES IN WELL CEMENTING |
| 摘要 |
<p>What is proposed is the use of a terpolymer comprising 5-95 mol % of 2-acrylamido-2-methylpropanesulfonic acid, 5-95 mol % of N,N-dimethylacrylamide and 5-12 mol % of acrylic acid as a fluid loss additive in well cementing.</p> |
| 申请公布号 |
EP2814903(A1) |
申请公布日期 |
2014.12.24 |
| 申请号 |
EP20130700093 |
申请日期 |
2013.01.09 |
| 申请人 |
BASF SE |
发明人 |
REICHENBACH-KLINKE, ROLAND;WOHLFAHRT, MARKUS |
| 分类号 |
C09K8/487;C09K8/12 |
主分类号 |
C09K8/487 |
| 代理机构 |
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代理人 |
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