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33 条记录 (耗时 0.038 秒)

    Methods and ultra-low density sealing compositions for sealing pipe in well bores
    7.
    发明授权
    Methods and ultra-low density sealing compositions for sealing pipe in well bores 有权
    井筒密封管的方法和超低密度密封组合物

    公开(公告)号：US06367549B1

    公开(公告)日：2002-04-09

    申请号：US09960768

    申请日：2001-09-21

    申请人： Jiten Chatterji ,  Roger S. Cromwell ,  Bobby J. King ,  Dennis W. Gray ,  Ronald J. Crook ,  Frank Zamora

    发明人： Jiten Chatterji ,  Roger S. Cromwell ,  Bobby J. King ,  Dennis W. Gray ,  Ronald J. Crook ,  Frank Zamora

    IPC分类号： E21B3314

    CPC分类号： C04B26/14 ,  C09K8/44 ,  C09K8/46 ,  Y02W30/94 ,  C04B14/08 ,  C04B14/24 ,  C04B18/146 ,  C04B24/42

    摘要： The present invention provides methods and ultra-low density sealing compositions for sealing pipe in well bores penetrating formations which readily fracture at low hydrostatic pressures. A method of the invention basically comprises the steps of providing a hardenable ultra-low density sealing composition comprised of an epoxide containing liquid, a hardening agent, a hardening accelerating agent, a light weight filler and hollow glass michrospheres having a density in the range of from about 5 to 8.5 pounds per gallon, placing the sealing composition in the annulus between the pipe to be sealed and the walls of the well bore and allowing the sealing composition to harden therein.

    摘要翻译： 本发明提供了在低流体静力学压力下容易断裂的井眼穿透地层中密封管道的方法和超低密度密封组合物。 本发明的方法基本上包括以下步骤：提供一种可硬化的超低密度密封组合物，其由含环氧化物的液体，硬化剂，硬化促进剂，轻质填料和中空玻璃多孔体组成，密度范围为 每加仑约5至8.5磅，将密封组合物放置在要密封的管和孔的壁之间的环空中，并允许密封组合物在其中硬化。

    Cementing methods using dry cementitious materials having improved flow properties
    9.
    发明授权
    Cementing methods using dry cementitious materials having improved flow properties 失效
    使用具有改善的流动性能的干燥胶结材料的水泥方法

    公开(公告)号：US06170575B2

    公开(公告)日：2001-01-09

    申请号：US09324310

    申请日：1999-06-02

    申请人： Baireddy R. Reddy ,  Ronald E. Sweatman ,  James F. Heathman ,  Russell M. Fitzgerald ,  Ronald J. Crook

    发明人： Baireddy R. Reddy ,  Ronald E. Sweatman ,  James F. Heathman ,  Russell M. Fitzgerald ,  Ronald J. Crook

    IPC分类号： C04B2404

    CPC分类号： C04B20/107 ,  C04B20/1018 ,  C04B28/02 ,  C04B28/04 ,  C04B40/0042 ,  C04B2103/30 ,  C04B2103/34 ,  C04B2111/00146 ,  C09K8/46 ,  Y02W30/92 ,  Y02W30/94 ,  C04B14/042 ,  C04B14/047 ,  C04B14/06 ,  C04B40/0608 ,  C04B14/066 ,  C04B18/08 ,  C04B18/146 ,  C04B22/124 ,  C04B24/04

    摘要： Cement compositions and methods of cementing within subterranean formations penetrated by well bores wherein the flow properties of one or more dry particulate cementitious materials are improved and wherein the materials can be readily conveyed out of storage tanks and the like. A preferred composition of the present invention comprises a particulate flow enhancing additive dry-blended with one or more dry particulate cementitious materials, said flow enhancing additive being comprised of a particulate solid material carrying a flow inducing polar chemical, and a sufficient amount of water to form a pumpable slurry. The methods basically include the steps of dry-blending the particulate flow enhancing additive with the one or more dry particulate cementitious materials; forming a pumpable slurry using the one or more cementitious materials having the particulate flow enhancing additive blended therewith; pumping the slurry into a well bore; and then allowing the slurry to solidify within the subterranean formation.

    摘要翻译： 水泥组合物和在井下穿透的地层内的固井方法，其中改善了一种或多种干颗粒状水泥质材料的流动性质，并且其中材料可以容易地从储罐等传送。 本发明的优选组合物包含与一种或多种干燥颗粒状水泥质材料干混的颗粒状流动增强添加剂，所述流动增强添加剂由承载流动诱发极性化学品的颗粒固体材料和足量的水组成 形成可泵送浆料。 所述方法基本上包括以下步骤：用一种或多种干颗粒状水泥质材料将颗粒状流动增强添加剂干混; 使用一种或多种具有与其混合的颗粒流动增强添加剂的水泥质材料形成可泵送浆料; 将浆料泵入井眼; 然后允许浆料在地层内固化。