发明名称 |
SURFACTANT MIXTURES FOR TERTIARY OIL RECOVERY |
摘要 |
The invention relates to the use of a mixture containing a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground hydrocarbon fields in order to mobilise and extract hydrocarbons therefrom, wherein the cosurfactant is embodied in the form of a substance or the group of substances selected from an amphiphilic comb polymer comprising a backbone which is provided with two or more side chains which differ from each other and/or from the backbone in terms of the amphiphilic character thereof, the amphiphilic polymer comprises one or several hydrophobic sub-groups [A2] based on a polyisobutene block, wherein at least 50 Mol % of polyisobutene macromolecules have terminal double bonds and one or several hydrophobic sub-groups [A2] or an amphiphilic polymer of a general structural formula (I).
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申请公布号 |
CA2610758(C) |
申请公布日期 |
2013.10.08 |
申请号 |
CA20062610758 |
申请日期 |
2006.06.08 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HUFF, JUERGEN;OETTER, GUENTER;KUEHNLE, ANGELIKA;PETROVIC, SUSANNE;GUZMANN, MARCUS;MUENSTER, INGO;BRODT, GREGOR |
分类号 |
C09K8/584;C09K8/588;E21B43/22 |
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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