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    Cementing methods using dry cementitious materials having improved flow properties
    4.
    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。

    Apparatus and methods for improved fluid displacement in subterranean formations
    7.
    发明授权
    Apparatus and methods for improved fluid displacement in subterranean formations 有权

    公开(公告)号：US07128149B2

    公开(公告)日：2006-10-31

    申请号：US11211974

    申请日：2005-08-24

    申请人： James F. Heathman ,  Sears T. Dealy ,  James H. Cantrell ,  Dennis W. Gray

    发明人： James F. Heathman ,  Sears T. Dealy ,  James H. Cantrell ,  Dennis W. Gray

    IPC分类号： E21B33/16 ,  E21B49/08

    CPC分类号： C09K8/42 ,  Y10S507/904 ,  Y10S507/927

    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.

    Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation
    8.
    发明授权
    Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation 失效
    含有粗重晶石的水泥组合物，其制造方法以及在地层中固井的方法

    公开(公告)号：US06892814B2

    公开(公告)日：2005-05-17

    申请号：US10324523

    申请日：2002-12-19

    申请人： James F. Heathman ,  Timothy L. Quirk

    发明人： James F. Heathman ,  Timothy L. Quirk

    IPC分类号： C04B28/02 ,  C09K8/42 ,  E21B33/13

    CPC分类号： C09K8/42 ,  C04B28/02 ,  C04B2111/00146 ,  C04B2201/20 ,  C04B14/06 ,  C04B14/36 ,  C04B20/008 ,  C04B2103/20 ,  C04B2103/46 ,  C04B2103/50

    摘要： Cement comprising barite, a process for preparing such cement, and methods of cementing in a subterranean formation or well bore using such cement are provided. The cement is prepared by introducing coarse barite to the cement, the course barite comprising particles having a particle size primarily greater than about 125 microns. Preferably, 90 percent of the barite particles is greater than about 125 microns in size. The presence of the coarse barite in the cement causes the cement to have a relatively low viscosity. Introducing the barite to the cement also increases the density of the cement, thus rendering the cement capable of controlling high hydrostatic pressures in a well bore.

    摘要翻译： 提供了包括重晶石的水泥，用于制备这种水泥的方法，以及使用这种水泥在地层或井眼中固井的方法。 水泥是通过将粗重晶体引入水泥而制备的，该重晶石包含粒径主要大于约125微米的颗粒。 优选地，90％的重晶石颗粒的尺寸大于约125微米。 水泥中粗重晶的存在使得水泥具有相对较低的粘度。 将重晶石引入水泥也增加了水泥的密度，从而使水泥能够在井眼中控制高静水压力。

    Method and apparatus for plugging wells
    9.
    发明授权
    Method and apparatus for plugging wells 失效
    堵塞井的方法和装置

    公开(公告)号：US06454001B1

    公开(公告)日：2002-09-24

    申请号：US09569652

    申请日：2000-05-12

    申请人： Tommy D. Thompson ,  Horton C. Ballew ,  James F. Heathman ,  David L. Thorp

    发明人： Tommy D. Thompson ,  Horton C. Ballew ,  James F. Heathman ,  David L. Thorp

    IPC分类号： E21B33134

    CPC分类号： E21B33/136

    摘要： A method and apparatus for plugging a well. The apparatus includes a well barrier which may be connected to a pipe string and lowered into a well to a selected plug location. The barrier is held in place by the pipe string at the selected plug location. The well barrier will engage the well at the selected plug location. A plugging fluid is displaced through the pipe string and is communicated into the well above the barrier. The well barrier will catch the plugging fluid. After the plugging fluid gels sufficiently to support itself in the well, the pipe string which was utilized to lower the well barrier can be disconnected from the well barrier and removed from the well after the plugging fluid has been allowed to set to a sufficient gel strength. The well barrier consists of a support pipe connected to the pipe string, and a fluid barrier connected thereto. The fluid barrier comprises a webbing disposed about the support pipe and a plurality of support members hingedly connected to the support pipe which allows the support members to rotate outwardly to engage the well at the selected plug location.

    摘要翻译： 一种堵塞井的方法和装置。 该装置包括井壁，其可以连接到管柱并且下降到井中至选定的插塞位置。 屏障通过所选插头位置处的管柱固定在适当的位置。 井障将在选定的插头位置进入井。 堵塞流体通过管柱移动并且被传送到屏障上方的井中。 井障将堵塞堵塞液。 在堵塞流体充分固化以将其自身固定在井中之后，用于降低井壁的管柱可以在堵塞流体被允许设置到足够的凝胶强度之后与井壁断开并从井中移除 。 井障由连接到管柱的支撑管和与其连接的流体屏障组成。 流体屏障包括布置在支撑管周围的织带和铰接地连接到支撑管的多个支撑构件，其允许支撑构件向外旋转以在所选择的插塞位置处接合孔。