Aqueous drilling fluids containing alkenyl succinic anhydrides
    81.
    发明授权
    Aqueous drilling fluids containing alkenyl succinic anhydrides 失效
    含有烯基琥珀酸酐的含水钻井液

    公开(公告)号:US4554080A

    公开(公告)日:1985-11-19

    申请号:US606111

    申请日:1984-05-02

    申请人: James A. Headley

    发明人: James A. Headley

    IPC分类号: C09K8/24 C09K7/02

    CPC分类号: C09K8/24

    摘要: Disclosed are novel aqueous drilling fluid compositions containing a lubrication additive and a method of drilling wells wherein the underground formation is contacted with such drilling fluid compositions. The lubrication additive is a polyolefin in aqueous solution having a molecular weight between about 500 and about 2100 with one or more substituent groups of succinic anhydride.

    摘要翻译: 公开了含有润滑添加剂的新型含水钻井液组合物和钻井方法,其中地下地层与这种钻井液组合物接触。 润滑添加剂是分子量在约500和约2100之间的水溶液中的一种或多种琥珀酸酐取代基的聚烯烃。

    Slurry excavating method
    82.
    发明授权
    Slurry excavating method 失效
    泥浆挖掘方法

    公开(公告)号:US4551256A

    公开(公告)日:1985-11-05

    申请号:US384175

    申请日:1982-06-02

    IPC分类号: C09K8/24 E21B21/00 C09K7/02

    摘要: A slurry excavating method for excavating the ground or drilling a hole using excavating slurry containing a powder of water absorbing resin. This method makes it easy to prevent the slurry from flowing into gaps in the ground or cracks in fractured shale layer or fissile layer while excavating the ground.

    摘要翻译: 一种用于挖掘地面或使用含有吸水树脂粉末的挖掘浆料钻孔的浆料挖掘方法。 这种方法可以很容易地防止泥浆在开挖地面时流入地下空隙或裂缝页岩层或裂变层裂缝。

    Drilling fluid composition
    85.
    发明授权
    Drilling fluid composition 失效
    钻井液组成

    公开(公告)号:US4374738A

    公开(公告)日:1983-02-22

    申请号:US303946

    申请日:1981-09-21

    申请人: Jack R. Kelley

    发明人: Jack R. Kelley

    IPC分类号: C08F289/00 C09K8/24 C09K7/02

    CPC分类号: C08F289/00 C09K8/24

    摘要: A water-based drilling fluid composition is described which comprises an aqueous dispersion of a clay material containing an effective dispersing amount of a modified lignosulfonate which is obtained by graft polymerization of from 5 to 30 weight percent of an acrylic compound with the lignosulfonate. The grafted lignosulfonate has an average molecular weight of less than 80,000.

    摘要翻译: 描述了一种水性钻井液组合物,其包含含有有效分散量的改性木质素磺酸盐的粘土材料的水分散体,其通过5至30重量%的丙烯酸化合物与木质素磺酸盐的接枝聚合而获得。 接枝的木质素磺酸盐的平均分子量小于80,000。

    Borehole drilling fluid and method
    86.
    发明授权
    Borehole drilling fluid and method 失效
    井眼钻井液和方法

    公开(公告)号:US4301016A

    公开(公告)日:1981-11-17

    申请号:US8758

    申请日:1979-02-02

    IPC分类号: C09K8/24 C09K7/02

    摘要: An improved drilling fluid and method for drilling a borehole, the drilling fluid comprising an aqueous dispersion of an emulsion polymerized latex comprised of an interpolymer of an olefinically unsaturated carboxylic acid monomer and at least one other, non-carboxylated polymerizable monomer, the latex being of a type which undergoes rapid increase in viscosity upon the addition of a sufficient amount of a basic material.

    摘要翻译: 一种用于钻孔的改进的钻井流体和方法,所述钻井流体包括由烯属不饱和羧酸单体和至少一种其它非羧化聚合单体的互聚物组成的乳液聚合胶乳的水性分散体,所述胶乳为 在添加足够量的碱性物质时,粘度快速增加的类型。