Cementing methods using dry cementitious materials having improved flow properties
    3.
    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

    IPC分类号: C04B2404

    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。

    Cementing compositions using dry cementitious materials having improved flow properties
    7.
    发明授权
    Cementing compositions using dry cementitious materials having improved flow properties 有权
    使用具有改善的流动性能的干燥胶结材料的水泥组合物

    公开(公告)号:US06494951B1

    公开(公告)日:2002-12-17

    申请号:US09405544

    申请日:1999-09-23

    IPC分类号: C04B2404

    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。

    Apparatus and methods for improved fluid displacement in subterranean formations

    公开(公告)号:US07128149B2

    公开(公告)日:2006-10-31

    申请号:US11211974

    申请日:2005-08-24

    IPC分类号: E21B33/16 E21B49/08

    摘要: Apparatus and methods for determining suitable displacement fluids for use in subterranean cementing operations, and methods of cementing that use such displacement fluids, are provided. Examples of methods include methods of water-wetting an annulus in a subterranean formation having an oleaginous-external/aqueous-internal fluid disposed on at least a portion of one or more surfaces of the annulus. Another example of a method is a method of using an inverter fluid in a subterranean formation that includes a tubular string disposed therein having an annular region adjacent the outer surface of the tubular string, at least part of the annular region having an oleaginous-external/aqueous-internal fluid on a surface thereof. Another example of a method of the present invention is a method of identifying an inverter fluid to use for inverting an oleaginous-external/aqueous-internal fluid in a subterranean formation.