Oil recovery process
    14.
    发明授权
    Oil recovery process 失效
    油回收过程

    公开(公告)号:US3659650A

    公开(公告)日:1972-05-02

    申请号:US3659650D

    申请日:1970-06-15

    CPC classification number: C09K8/584 Y10S507/936

    Abstract: An oil recovery process which employs, as an additive to the aqueous material used for waterflooding, at least one of the reaction product of sulfamic acid and a polyethoxy alcohol or, the ammonium sulfate slat of a polyethoxylated alkylphenol is disclosed.

    Abstract translation: 公开了一种油回收方法,其采用用于水驱的水性材料的添加剂,至少一种氨基磺酸和聚乙氧基醇的反应产物或聚乙氧基化烷基酚的硫酸铵盐。

    Drilling fluid additives
    19.
    发明授权
    Drilling fluid additives 失效
    钻井液添加剂

    公开(公告)号:US3558487A

    公开(公告)日:1971-01-26

    申请号:US3558487D

    申请日:1963-12-31

    CPC classification number: C09K8/22 Y10S516/03

    Abstract: IMPROVED WELL DRILLING FLUIDS CONTAINING A SMALL BUT EFFECTIVE AMOUNT OF A THINNING AGENT SELECTED FROM THE GROUP CONSISTING OF CERTAIN SULFONATED POLYHYDRIC PHENOLS AND CERTAIN SULFONATED POLYHYDRIC NAPHTHOLS CAPABLE OF BEING OXIDIZED TO A QUINONE, CERTAIN METAL SALTS OF SAID PHENOLS AND SAID NAPHTHOLS, AND OXIDATION PRODUCTS OBTAINED UPON OXIDATION OF SAID PHENOLS, SAID NAPHTHOLS, AND SAID METAL SALTS OF SAID PHENOLS AND SAID NAPHTHOLS; AND METHODS OF DRILLING A WELL USING SAID DRILLING FLUIDS.

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