Drilling fluid additives
    15.
    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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