发明名称 |
METHOD FOR TERTIARY OIL PRODUCTION USING SURFACTANT MIXTURES |
摘要 |
<p>The invention relates to a method for producing oil, in particular Winsor Type III microemulsion flooding, wherein an aqueous surfactant formulation comprising at least one non-ionic surfactant having 8 to 40 ethoxy units and having a polydispersion index of 1.01 to 1.12, and at least one further surfactant is pressed through injection wells into an oil deposit, and crude oil is extracted from the deposit via production wells.</p> |
申请公布号 |
EP2488600(B1) |
申请公布日期 |
2014.04.16 |
申请号 |
EP20100768429 |
申请日期 |
2010.10.05 |
申请人 |
BASF SE |
发明人 |
BITTNER, CHRISTIAN;OETTER, GUENTER;TINSLEY, JACK;SPINDLER, CHRISTIAN;ALVAREZ JUERGENSON, GABRIELA;VOGEL, SOPHIE |
分类号 |
C09K8/584;B01F17/00 |
主分类号 |
C09K8/584 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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