SALT TOLERANT FRICTION REDUCER
    1.
    发明申请
    SALT TOLERANT FRICTION REDUCER 审中-公开
    耐盐摩擦减速机

    公开(公告)号:WO2016011106A1

    公开(公告)日:2016-01-21

    申请号:PCT/US2015/040494

    申请日:2015-07-15

    CPC classification number: C09K8/36 C09K8/64 C09K8/82 C09K2208/28 E21B43/26

    Abstract: A friction reducing treatment solution that includes water, from 100 to 500,000 ppm of total dissolved solids, and from 0.5 to 3 gallons per thousand gallons of a water- in-oil emulsion containing a water soluble polymer. The total dissolved solids include at least 10 weight percent of a multivalent cation. The water-in-oil emulsion includes an oil phase and an aqueous phase, where the oil phase is a continuous phase containing an inert hydrophobic liquid and the aqueous phase is present as dispersed distinct particles in the oil phase and contains water, the water soluble polymer, and surfactants and an inverting surfactant. The water soluble polymer is made up of 20 to 80 weight percent of a non- ionic monomer, 0.5 to 30 weight percent of a carboxylic acid containing monomer, and 5 to 70 weight percent of a cationic monomer and makes up from 10 to 35 weight percent of the water-in-oil emulsion.

    Abstract translation: 一种减摩处理溶液,其包括100至500,000ppm总溶解固体的水和0.5至3加仑/千加仑含有水溶性聚合物的油包水乳液。 总溶解固体包括至少10重量%的多价阳离子。 油包水乳液包括油相和水相,其中油相是含有惰性疏水性液体的连续相,水相以分散的不同颗粒存在于油相中并含有水,水溶性 聚合物和表面活性剂和反相表面活性剂。 水溶性聚合物由20至80重量%的非离子单体,0.5至30重量%的含羧酸的单体和5至70重量%的阳离子单体组成,并且占10至35重量份 油包水乳剂的百分比。

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