PH-REGULATED THICKENER SYSTEM
    3.
    发明申请
    PH-REGULATED THICKENER SYSTEM 审中-公开
    PH-切换增稠剂体系

    公开(公告)号:WO2008065172A3

    公开(公告)日:2009-03-19

    申请号:PCT/EP2007063011

    申请日:2007-11-29

    Abstract: The present invention relates to a composition with pH-dependant viscosity, comprising (A) at least one surfactant of the general formula (I), (R1-[(O-(CH2)2)x1(O-CH(CH3)CH2)x2]O)kP(=O)(OH)3-k, wherein the sequence of the alkenoxy units is optional, R1 is selected from linear or branched C12-C22-alkyl, C12-C22-alkenyl, C12-C22-alkinyl, (C11-C21-alkyl)carbonyl, (C11-C21-alkenyl)carbonyl and (C11-C21-alkinyl)carbonyl, k is 1 or 2, and x1 and x2 independently from each other are an integer from 0 to 20, wherein the sum of x1 und x2is a number from 1 to 20, and (B) at least one thickener, comprising at least two hydrophobic groups R2, which are connected with each other via a bridging hydrophilic group (a). The invention further relates to the use for the controlled adjustment of the rheological properties of aqueous compositions and to methods for the treatment of underground geological formations.

    Abstract translation: 本发明涉及具有pH依赖性粘度的组合物,其包含(A)通式(I)中的至少一种表面活性剂:(R 1 - [(O-(CH 2)2)X 1(O-CH(CH3)CH2)X 2] O)kP的(= O)(OH)3-K,其中所述亚烷氧基单元的顺序是任意的,R 1是选自直链或支链的C12-C22烷基,C12-C22链烯基,C12-C22炔基,(C11- C21烷基)羰基,(C11-C21链烯基)羰基,和(C11-C21炔基)羰基,k为1或2,并且是X1和X2是0至20各自独立地为整数,总和 x1和x2是从1到20的数; 和(B)至少一种增稠剂,其包含至少两个疏水性基团R 2,它们通过桥接亲水基团彼此连接(a)中,其用于含水组合物和方法的流变性能的受控调整处理地下地质构造中使用。

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