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    • 53. 发明申请
    • ROTARY CONE DRILL BIT HAVING A BIT BODY WITH INTEGRAL STABILIZERS
    • 旋转锥钻头钻头具有整体稳定器的钻头体
    • WO0029709A2
    • 2000-05-25
    • PCT/US9926491
    • 1999-11-10
    • DRESSER INDDAHLEM JAMES SKNECHT KARL DON
    • DAHLEM JAMES SKNECHT KARL DON
    • E21B17/10E21B10/00
    • E21B17/1092
    • A rotary cone drill bit for forming a borehole having a bit body with a plurality of stabilizer pads formed as integral components thereof. The bit body includes an upper portion adapted for connection to a drill string. A number of support arms preferably extend from a lower portion of the bit body. A number of cutter cone assemblies equal to the number of support arms are rotatably mounted on respective support arms and project generally downwardly and inwardly from each support arm. The stabilizer pads project radially outward from the bit body and are disposed intermediate adjacent support arms. Both the stabilizer pads and the support arms preferably have surfaces that form a fluid flow channel therebetween to direct drilling fluids and cuttings to flow upward in the borehole. Layer of hardfacing may be disposed on selected portions of each stabilizer pad. One or more inserts may be installed in selected portions of each stabilizer pad.
    • 一种用于形成具有钻头本体的钻孔的旋转锥形钻头,所述钻头具有形成为其整体部件的多个稳定器衬垫。 钻头本体包括适于连接到钻柱的上部。 多个支撑臂优选从钻头本体的下部延伸。 与支撑臂的数量相等的多个刀具锥体组件可旋转地安装在相应的支撑臂上并且从每个支撑臂大体向下和向内突出。 稳定垫从钻头体径向向外伸出并设置在相邻支撑臂的中间。 稳定器衬垫和支撑臂均优选具有在其间形成流体流动通道的表面,以引导钻井流体和钻屑在井眼中向上流动。 硬面层可以设置在每个稳定垫的选定部分上。 一个或多个插入件可以安装在每个稳定器垫的选定部分中。
    • 54. 发明申请
    • DRILLING MACHINE
    • 钻孔机
    • WO2017142815A1
    • 2017-08-24
    • PCT/US2017/017515
    • 2017-02-10
    • EXTREME ROCK DESTRUCTION LLC
    • SPATZ, EdwardREESE, MichaelDUDLEY, James
    • E21B17/10E21B7/04E21B7/06E21B7/08E21B7/10
    • E21B7/06E21B7/067E21B7/068E21B7/28E21B10/26E21B10/32E21B10/42E21B10/567E21B10/62E21B17/1092
    • A drilling machine for a wellbore is provided. The drilling machine may include a dynamic lateral pad that is movable between an extended and retracted position. In the extended position, the pad moves the drill bit in a direction for drilling. The drilling machine may include a dynamic lateral cutter that is movable between an extended and retracted position. In at least the extended position, the cutter engages the wellbore and removes formation. The drilling machine may include a monolithic or integral drill bit / drive shaft to reduce the distance between a positive displacement motor and a distal end of the monolithic or integral drill bit / drive shaft. The drilling machine may include separate cutting structures that have different rotational speeds and can further utilize the integral drill bit / drift shaft and / or a bent housing that generates an off-axis rotation which helps optimize the formation removal in the center area of the wellbore.
    • 提供了用于井眼的钻机。 钻机可以包括可在伸出位置和缩回位置之间移动的动态横向衬垫。 在延伸位置,垫使钻头沿钻孔方向移动。 钻机可以包括可在伸出位置和缩回位置之间移动的动态横向切割器。 至少在延伸位置,切割器接合井眼并移除地层。 钻机可包括单体式或一体式钻头/驱动轴,以减小容积式马达与单体式或一体式钻头/驱动轴的远端之间的距离。 钻机可以包括具有不同旋转速度的单独的切割结构,并且可以进一步利用一体钻头/漂移轴和/或产生轴外旋转的弯曲外壳,该轴外旋转有助于优化井筒的中心区域中的地层移除

    • 60. 发明申请
    • ROTARY DRILL BITS AND DRILLING TOOLS HAVING PROTECTIVE STRUCTURES ON LONGITUDINALLY TRAILING SURFACES
    • 具有长期保护性表面保护结构的旋转钻头和钻孔工具
    • WO2009146096A1
    • 2009-12-03
    • PCT/US2009039265
    • 2009-04-02
    • BAKER HUGHES INCPATEL SURESH GKIRKPATRICK BEN LMAYER SCOTT
    • PATEL SURESH GKIRKPATRICK BEN LMAYER SCOTT
    • E21B10/50E21B10/16
    • E21B17/1092E21B10/003
    • A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and comprising longitudinally upward extensions of a plurality of blades or legs. A longitudinally trailing, radially inwardly extending surface is associated with at least some gage pads or legs at the longitudinally trailing ends thereof. Protective structures in the form of superabrasive elements comprising a plurality of thermally stable polycrystalline diamonds, or so-called "TSPs" (thermally stable products) are secured to a trailing surface of at least one gage pad. PDC elements may be employed in combination with the TSPs. Non-diamond structures may also be employed, in lieu of or in conjunction with diamond structures, particularly if drilling of ferrous metal casing components is contemplated.
    • 一种用于通过地层钻孔或铰孔的旋转钻头或其他钻孔工具,并且包括主体,所述主体包括位于其近端附近的远端和表面区域,并且包括多个叶片或腿的纵向向上延伸部。 纵向延伸的径向向内延伸的表面与其纵向后端处的至少一些测量垫或腿相关联。 包括多个热稳定多晶金刚石或所谓的“TSP”(热稳定产品)的超级磨料元件形式的保护结构被固定在至少一个量具垫的后表面上。 PDC元件可以与TSP组合使用。 也可以采用非金刚石结构,代替金刚石结构或与金刚石结构结合使用,特别是如果考虑钻孔黑色金属套管部件。