| 发明名称 |
Use of surfactant mixtures for tertiary mineral oil extraction |
| 摘要 |
The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon radical composed of from 6 to 11 carbon atoms for tertiary mineral oil extraction.
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| 申请公布号 |
US7985718(B2) |
申请公布日期 |
2011.07.26 |
| 申请号 |
US20090427109 |
申请日期 |
2009.04.21 |
| 申请人 |
BASF SE |
发明人 |
STEINBRENNER ULRICH;BITTNER CHRISTIAN;GUENTER OETTER;GUZMANN MARCUS |
| 分类号 |
C09K8/64;C02F5/10;C09K8/528;C09K8/584;C09K8/60;C09K8/78;E21B43/00;E21B43/16;E21B43/22 |
主分类号 |
C09K8/64 |
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