TENSIDMISCHUNGEN FÜR DIE TERTIÄRE ERDÖLFÖRDERUNG
    11.
    发明公开
    TENSIDMISCHUNGEN FÜR DIE TERTIÄRE ERDÖLFÖRDERUNG 有权
    表面活性剂为大专石油开发

    公开(公告)号:EP1893717A1

    公开(公告)日:2008-03-05

    申请号:EP06777283.0

    申请日:2006-06-08

    申请人: BASF SE

    IPC分类号: C09K8/58 C09K8/60

    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).