发明授权
US08684080B2 Use of surfactant mixtures of polycarboxylates for microemulsion flooding
失效
使用多羧酸盐的表面活性剂混合物用于微乳液淹水
- 专利标题： Use of surfactant mixtures of polycarboxylates for microemulsion flooding
- 专利标题（中）： 使用多羧酸盐的表面活性剂混合物用于微乳液淹水
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申请号： US13044375申请日： 2011-03-09
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公开(公告)号： US08684080B2公开(公告)日： 2014-04-01
- 发明人: Christian Bittner , Günter Oetter , Jack Tinsley , Christian Spindler , Sophie Vogel , Gabriela Alvarez-Juergenson , Marcus Guzmann
- 申请人： Christian Bittner , Günter Oetter , Jack Tinsley , Christian Spindler , Sophie Vogel , Gabriela Alvarez-Juergenson , Marcus Guzmann
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Novak Druce Connolly Bove + Quigg LLP
- 优先权： EP10002491 20100310
- 主分类号： E21B43/22
- IPC分类号： E21B43/22
摘要：
The present invention relates to processes for tertiary mineral oil production with the aid of a surfactant mixture and to the use of a surfactant mixture for tertiary mineral oil production by means of Winsor type III microemulsion flooding, by injecting a surfactant mixture through at least one aqueous injection borehole into a mineral oil deposit, and withdrawing crude oil from the deposit through at least one production borehole, wherein the surfactant mixture, for the purpose of lowering the interfacial tension between oil and water to
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