发明授权
- 专利标题: Use of surfactant mixtures for tertiary mineral oil extraction
- 专利标题(中): 表面活性剂混合物用于三次矿物油萃取
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申请号: US13087676申请日: 2011-04-15
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公开(公告)号: US09315716B2公开(公告)日: 2016-04-19
- 发明人: Ulrich Steinbrenner , Christian Bittner , Günter Oetter , Marcus Guzmann
- 申请人: Ulrich Steinbrenner , Christian Bittner , Günter Oetter , Marcus Guzmann
- 申请人地址: DE
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE
- 代理机构: Drinker Biddle & Reath LLP
- 主分类号: C09K8/22
- IPC分类号: C09K8/22 ; C09K8/34 ; C09K8/584 ; C09K8/60
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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