Aqueous gels comprising ethoxylated polyhydric alcohols
    1.
    发明授权
    Aqueous gels comprising ethoxylated polyhydric alcohols 失效
    包含乙氧基化多元醇的水性凝胶

    公开(公告)号:US06342206B1

    公开(公告)日:2002-01-29

    申请号:US09472471

    申请日:1999-12-27

    Abstract: There is provided according to the present invention an aqueous gel composition, comprising a) an ethoxylated polyhydric alcohol which comprises a reaction product of an alcohol having 3 to 6 hydroxy groups with ethylene oxide; and b) a gelling agent selected from the group consisting of a polyoxyethylene/polyoxypropylene/polyoxyethylene triblock surfactant having a molecular weight of from 4,000 to 16,000, and wherein the weight of the polyoxyethylene blocks is from 55% to 90% of the weight of the triblock surfactant; a crosslinked polyacrylic thickener; cellulose derivatives; hydrated silicas; and mixtures thereof. When the gelling agent is the triblock surfactants, the ethoxylated polyhydric alcohol comprises the reaction product of the polyhydric alcohol and up to 5 mole equivalents of ethylene oxide per mole equivalent of hydroxyl group in the alcohol.

    Abstract translation: 根据本发明提供一种水性凝胶组合物,其包含a)乙氧基化多元醇,其包含具有3至6个羟基的醇与环氧乙烷的反应产物; 和b)选自分子量为4,000至16,000的聚氧乙烯/聚氧丙烯/聚氧乙烯三嵌段表面活性剂的胶凝剂,其中聚氧乙烯嵌段的重量为三嵌段重量的55%至90% 表面活性剂 交联聚丙烯酸增稠剂; 纤维素衍生物; 水合二氧化硅; 当胶凝剂是三嵌段表面活性剂时,乙氧基化多元醇包含多元醇的反应产物和醇中每摩尔当量羟基高达5摩尔当量的环氧乙烷。

    Oil well cementing formulations
    7.
    发明授权
    Oil well cementing formulations 失效
    油井固井配方

    公开(公告)号:US5262452A

    公开(公告)日:1993-11-16

    申请号:US940553

    申请日:1992-09-04

    CPC classification number: C09K8/24 C09K8/46

    Abstract: An oil and gas well cementing composition has styrene/butadiene latex and a combination of nonionic and anionic surfactants for improved physical properties, especially fluid loss.

    Abstract translation: 油气井固井组合物具有苯乙烯/丁二烯胶乳和非离子和阴离子表面活性剂的组合,用于改善物理性能,特别是流体损失。

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