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29 条记录 (耗时 0.021 秒)

    SLIDE REAMER AND STABILIZER TOOL
    1.
    发明申请
    SLIDE REAMER AND STABILIZER TOOL 审中-公开

    公开(公告)号：US20180119495A1

    公开(公告)日：2018-05-03

    申请号：US15806128

    申请日：2017-11-07

    申请人： Dynomax Drilling Tools Inc.

    发明人： Michael James Harvey ,  Jovan Vacar ,  Milan Rajic

    IPC分类号： E21B10/26 ,  E21B17/10 ,  E21B10/08 ,  E21B10/28

    CPC分类号： E21B10/26 ,  E21B10/086 ,  E21B10/28 ,  E21B17/1078

    摘要： A downhole tool, for selectively reaming a wellbore or stabilizing drill string components within a wellbore, includes an elongate tool body adapted to receive reamer cartridges or stabilizer cartridges depending on the function desired. The reamer cartridges are radially insertable into corresponding pockets in the tool body, with each reamer cartridge having a reamer insert with an array of cutting elements. The reamer insert is disposed within a bushing and is rotatable relative thereto, about a rotational axis transverse to the longitudinal axis of the tool. However, the rotational axis is offset from the tool body axis, resulting in eccentric contact of the cutting elements with the wall of the wellbore, which in turn imparts rotation to the reamer insert when the tool is being moved axially through a wellbore without rotation. When the tool is to be used for stabilization, the reamer cartridges can be removed and replaced with stabilizer cartridges having stabilizer inserts with hard-faced stabilizer cones.

    Two-cone drill bit
    2.
    发明授权
    Two-cone drill bit 有权
    双锥钻头

    公开(公告)号：US07681670B2

    公开(公告)日：2010-03-23

    申请号：US10938069

    申请日：2004-09-10

    申请人： Prabhakaran K. Centala ,  James L. Larsen ,  Mohammed Boudrare

    发明人： Prabhakaran K. Centala ,  James L. Larsen ,  Mohammed Boudrare

    IPC分类号： E21B10/08

    CPC分类号： E21B10/08 ,  E21B10/086 ,  E21B10/18 ,  Y10T29/49826

    摘要： A two-cone drill bit with a hydraulic arrangement that can be used for one or more of the following: cleaning roller cones, impinging on a hole bottom, or inducing a helical flow field. A two-cone drill bit having a bit body formed from two leg sections and two spacing members; methods of manufacturing a two-cone drill bit; and methods of improving hydraulics of a two-cone drill bit are disclosed.

    摘要翻译： 具有液压装置的双锥钻头可用于以下一个或多个：清洁滚筒锥体，撞击孔底部或引起螺旋流场。 一种双锥钻头，其具有由两个腿部段和两个间隔构件形成的钻头体; 制造双锥钻头的方法; 并公开了改进双锥钻头液压的方法。

    System for lining a section of a wellbore
    3.
    发明申请
    System for lining a section of a wellbore 有权
    用于衬砌井筒部分的系统

    公开(公告)号：US20060243452A1

    公开(公告)日：2006-11-02

    申请号：US10493708

    申请日：2002-10-23

    申请人： Jorg Ernst Eckerlin

    发明人： Jorg Ernst Eckerlin

    IPC分类号： E21B23/02

    CPC分类号： E21B43/105 ,  E21B10/086

    摘要： A system for lining a section of a wellbore with an expandable tubular element is provided. The system includes an elongate string extending into the wellbore, the string being provided with the tubular element in the unexpanded form thereof whereby the tubular element surrounds a lower portion of the string. The string is further provided with an expander arranged at a lower end part of the tubular element and anchoring means for anchoring an upper end part of the tubular element in the wellbore.

    摘要翻译： 提供了一种用于利用可膨胀管状元件衬套井筒部分的系统。 该系统包括延伸到井筒中的细长的绳索，该绳索以未膨胀的形式设置有管状元件，由此管状元件围绕绳的下部。 绳子还设置有布置在管状元件的下端部的膨胀器和用于将管状元件的上端部分固定在井筒中的锚定装置。

    Roller cone bi-center bit
    4.
    发明授权
    Roller cone bi-center bit 失效
    滚子锥双中心钻头

    公开(公告)号：US06902014B1

    公开(公告)日：2005-06-07

    申请号：US10210806

    申请日：2002-08-01

    申请人： Roy D. Estes

    发明人： Roy D. Estes

    IPC分类号： E21B10/08 ,  E21B10/28

    CPC分类号： E21B10/086 ,  E21B10/28

    摘要： A roller cone bi-center bit for economically drilling an enlarged borehole below casing in earth formation is provided. The bi-center bit includes a rolling cone cutter or other appropriate cutter to enlarge a pilot bore also made by rolling cone or other type of cutters. The bit comprises a single-diameter body with a recess to accommodate the trailing cutter which enlarges the pilot bore. The bi-center bit may also provide the ability to change out the cutters efficiently in the field. The cutters are oriented to enhance drilling out the cement plug at the bottom of the casing. The cone cutter may be also be mounted on segments which are designed to be easily removed for replacement or adjustment in position in the field.

    摘要翻译： 提供了一种用于在地层中经济钻孔以下壳体下方的扩大井眼的圆锥双中心钻头。 双中心钻头包括滚动圆锥切割机或其他适当的切割器，以扩大也由滚动锥体或其他类型的切割器制成的导向孔。 该钻头包括具有凹部的单直径主体，以容纳扩大导向孔的拖尾切割器。 双中心位还可以提供在现场有效地切换刀具的能力。 切割器被定向以增强在壳体底部钻出水泥塞。 锥形切割器也可以安装在被设计成易于移除以便在现场的位置更换或调整的段上。

    Expandable drill bit
    9.
    发明授权
    Expandable drill bit 有权
    可扩展钻头

    公开(公告)号：US06607046B1

    公开(公告)日：2003-08-19

    申请号：US09710379

    申请日：2000-11-10

    申请人： Michael John Betts ,  Timothy William Rhys Harris ,  Neil Andrew Abecrombie Simpson

    发明人： Michael John Betts ,  Timothy William Rhys Harris ,  Neil Andrew Abecrombie Simpson

    IPC分类号： E21B1032

    CPC分类号： E21B10/086 ,  E21B10/26 ,  E21B10/62

    摘要： A drill bit suitable to be connected to a drill string for drilling a borehole into an earth formation, the drill string having a central longitudinal axis, the drill bit comprising a bit body connectable to the lower end of the drill string, and a cutting member provided with cutting devices at the outer surface thereof, the cutting member being rotatable relative to the bit body about a longitudinal axis of rotation extending eccentrically relative to the central longitudinal axis of the drill string, between a first rotational position[ and a second rotational position, whereby in said second rotational position the cutting devices arranged at a larger radial distance from the central longitudinal axis of the drill string than in said first rotational position.

    摘要翻译： 一种钻头，其适于连接到用于将钻孔钻入地层的钻柱，所述钻柱具有中心纵向轴线，所述钻头包括可连接到所述钻柱的下端的钻头体，以及切割构件 在其外表面设置有切割装置，所述切割构件可相对于所述钻头体围绕围绕所述钻柱的中心纵向轴线偏心延伸的纵向轴线在第一旋转位置[和第二旋转位置 从而在所述第二旋转位置中，所述切割装置布置成比所述第一旋转位置比所述钻柱的中心纵向轴线更大的径向距离。

    Activated rock cutting assembly
    10.
    发明授权
    Activated rock cutting assembly 失效
    活动岩石切割总成

    公开(公告)号：US4815543A

    公开(公告)日：1989-03-28

    申请号：US871881

    申请日：1986-06-09

    申请人： Dieter Lenzen ,  Philip Bechem

    发明人： Dieter Lenzen ,  Philip Bechem

    IPC分类号： B23Q5/04 ,  B23Q11/00 ,  E21B10/08 ,  E21B10/12

    CPC分类号： B23Q5/04 ,  B23Q11/0032 ,  E21B10/086 ,  E21B10/12 ,  Y10T409/304312 ,  Y10T409/307616

    摘要： A rock cutting assembly consists of a rock cutting roller, a shaft on which it is mounted, and a means for varying the mass of the assembly about the drive axis, to vary the balance of the assembly about that axis. Preferably two rollers are mounted on a common drive axis, the axes of the rollers being diametrally opposed and eccentrically displaced by the same distance from the drive axis. The mass-varying means may be a cavity or cavities in the hub or hubs, with means to introduce fluid into and extract it from the cavity or cavities. Alternatively the means may be a weight mounted to permit adjustment to vary the degree of imbalance.

    摘要翻译： 岩石切割组件包括岩石切割辊，安装在其上的轴以及用于改变组件围绕驱动轴线的质量的装置，以改变围绕该轴线的组件的平衡。 优选地，两个辊安装在共同的驱动轴上，辊的轴线是直径相对的并且偏离与驱动轴相同的距离。 质量变化装置可以是轮毂或轮毂中的空腔或空腔，具有将流体引入腔或空腔中的装置。 或者，装置可以是安装成允许调节以改变不平衡程度的重物。