Mud solidification with slurry of portland cement in oil
    11.
    发明授权
    Mud solidification with slurry of portland cement in oil 失效
    泥浆用硅酸盐水泥在油中固化

    公开(公告)号:US5370185A

    公开(公告)日:1994-12-06

    申请号:US117816

    申请日:1993-09-08

    摘要: A cementitious slurry is produced by combining an aqueous drilling fluid with a slurry of Portland cement in oil. Generally the drilling fluid is an aqueous drilling fluid containing clay such as prehydrated bentonite. The resulting composition has a particular utility in primary cementing operations for oil wells.

    摘要翻译: 通过将水性钻井液与波特兰水泥在油中的浆料组合来生产水泥浆料。 通常,钻井液是含有粘土的水性钻井液,例如预水合膨润土。 所得组合物在油井的初级固井作业中具有特殊的用途。

    Alcohol-in-oil drilling fluid system
    18.
    发明授权
    Alcohol-in-oil drilling fluid system 失效
    石油钻井液系统

    公开(公告)号:US5072794A

    公开(公告)日:1991-12-17

    申请号:US671622

    申请日:1991-03-19

    IPC分类号: C09K8/34

    CPC分类号: C09K8/36 C09K2208/22

    摘要: An invert oil emulsion drilling fluid containing oil, an emulsifier such as a fatty acid soap, clay or polymer, and an alcohol such as glycerol or cyclicetherpolyol as the internal phase of the emulsion. A method using substantially water-free drilling fluid and monitoring the influx of formation water into the drilling fluid.

    摘要翻译: 含有油的反相油乳液钻井液,乳化剂如脂肪酸皂,粘土或聚合物,以及醇如甘油或环状多元醇作为乳液的内相。 一种使用基本上无水的钻井液并监测地层水涌入钻井液的方法。