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    Flexible coupling for progressive cavity downhole drilling motor
    3.
    发明授权
    Flexible coupling for progressive cavity downhole drilling motor 失效
    渐进式井下钻孔电机的柔性联轴器

    公开(公告)号：US5090497A

    公开(公告)日：1992-02-25

    申请号：US758406

    申请日：1991-08-30

    申请人： Herb Beimgraben ,  Benny Melton ,  Jay Eppink ,  Paul Reinhardt

    发明人： Herb Beimgraben ,  Benny Melton ,  Jay Eppink ,  Paul Reinhardt

    IPC分类号： E21B4/02 ,  F04C15/00

    CPC分类号： E21B4/02 ,  F04C15/0076

    摘要： A composite flexible torsion bar coupling is used to connect the orbiting rotor of a Moineau-type motor to the concentrically rotating output drive shaft. The two-piece torsion bar coupling is hollow, to allow fluid passage through the rotor. This permits large quantities of fluid flow through the bit without passing all the fluid through the motor. The torsion bar is connected to the rotor at an inside surface adjacent to a power-producing surface of the rotor. This configuration provides the shortest possible coupling distance, thereby considerably reducing the overall length of the motor without decreasing its power output.

    摘要翻译： 复合柔性扭杆联轴器用于将莫伊诺型马达的绕转子与同心旋转的输出驱动轴连接起来。 两件扭力杆联轴器是中空的，以允许流体通过转子。 这允许大量的流体流过钻头，而不会使所有流体通过马达。 扭杆在与转子的发电表面相邻的内表面处连接到转子。 该配置提供了最短的耦合距离，从而显着地减小了电动机的总长度而不降低其功率输出。

    Downhole steering tool having a non-rotating bendable section
    4.
    发明申请
    Downhole steering tool having a non-rotating bendable section 有权
    井下转向工具具有不旋转的可弯曲部分

    公开(公告)号：US20060283635A1

    公开(公告)日：2006-12-21

    申请号：US11155165

    申请日：2005-06-17

    申请人： Michael Moody ,  Haoshi Song ,  Jay Eppink ,  William Paluch

    发明人： Michael Moody ,  Haoshi Song ,  Jay Eppink ,  William Paluch

    IPC分类号： E21B7/08

    CPC分类号： E21B7/062 ,  E21B17/20

    摘要： A downhole steering tool is disclosed. The steering tool includes a rotatable shaft, a substantially non-rotating tool body deployed about the shaft, and a plurality of force application members deployed on the steering tool body. The steering tool further includes a bendable section deployed in the steering tool body. The bendable section is disposed to bend preferentially relative to the steering tool body under an applied bending load. The use of a steering tool body having a bendable section tends to advantageously reduce bending stresses in the steering tool body during use. Moreover, tools embodying this invention may be suitable for higher dogleg severity applications.

    摘要翻译： 公开了井下转向工具。 所述转向工具包括可旋转的轴，围绕所述轴布置的基本不旋转的工具主体以及部署在所述转向工具主体上的多个施力部件。 所述转向工具还包括设置在所述转向工具主体中的可弯曲部分。 可弯曲部分设置成在施加的弯曲载荷下相对于转向工具主体优先弯曲。 使用具有可弯曲部分的转向工具主体倾向于有利地减少在使用期间转向工具主体中的弯曲应力。 此外，体现本发明的工具可适用于较高的狗腿严重性应用。

    Connector assembly useful with a downhole tool
    5.
    发明申请
    Connector assembly useful with a downhole tool 有权
    连接器组件可用于井下工具

    公开(公告)号：US20050279513A1

    公开(公告)日：2005-12-22

    申请号：US10873606

    申请日：2004-06-22

    申请人： Jay Eppink

    发明人： Jay Eppink

    IPC分类号： E21B17/02 ,  E21B17/042 ,  E21B17/043 ,  E21B17/046 ,  E21B17/10 ,  E21B19/16 ,  F16D1/02 ,  F16L15/08 ,  F16L21/08 ,  F16L25/06

    CPC分类号： E21B17/10 ,  F16L15/08

    摘要： A connector assembly for connecting with a rotatable shaft is provided. The connector assembly includes a mating sleeve threadably coupleable about the shaft and a center sleeve sized and shaped for deployment between the shaft and the mating sleeve. The center sleeve includes pluralities of splines formed on inner and outer surfaces thereof. The splines on the inner surface of the center sleeve are engageable with splines on the outer surface of the shaft and the splines on the outer surface of the center sleeve are engageable with splines on the inner surface of the mating sleeve. Exemplary embodiments of this invention are useful in downhole tools to reduce make-up torque requirements of the mating sleeve, and therefore may advantageously increase the cyclic torsional and/or bending load capacity of the shaft, while also increasing the total torsional load capacity of the connection.

    摘要翻译： 提供了一种用于与可旋转轴连接的连接器组件。 所述连接器组件包括可绕所述轴螺纹连接的配合套筒和尺寸和形状适于在所述轴和所述配合套筒之间展开的中心套筒。 中心套筒包括在其内表面和外表面上形成的多个花键。 中心套筒的内表面上的花键可与轴的外表面上的花键接合，并且中心套筒的外表面上的花键可与配合套筒的内表面上的花键接合。 本发明的示例性实施例可用于井下工具以减少配合套筒的补充扭矩要求，因此可以有利地增加轴的循环扭转和/或弯曲负载能力，同时还增加了轴的扭转负载能力 连接。

    Apparatus and method for drilling and reaming a borehole
    6.
    发明申请
    Apparatus and method for drilling and reaming a borehole 有权

    公开(公告)号：US20050241858A1

    公开(公告)日：2005-11-03

    申请号：US11173102

    申请日：2005-07-01

    申请人： Jay Eppink ,  Albert Odell

    发明人： Jay Eppink ,  Albert Odell

    IPC分类号： E21B7/08 ,  E21B10/32 ,  E21B17/10

    CPC分类号： E21B10/325 ,  E21B10/322

    摘要： A drilling assembly and an eccentric, adjustable diameter reamer are disclosed. The reamer includes cutter elements mounted on at least a first fixed blade for reaming a previously-formed borehole or for forming a borehole of increased diameter beneath an existing cased borehole. The method and apparatus provide for stabilizing the drilling assembly so that the reamer may be used in back reaming the hole. Retainer means, such as shear pins or spring-biased reciprocating latch members, are provided to prevent premature extension of the reamer's moveable members, including blades and pistons. The shear pins are preferably accessible from the outer surface of the reamer housing so as to expedite field replacement of the shear pins without requiring disassembly of the reamer. The spring-biased latching members repeatedly latch and unlatch so that field replacement is not required, and so that the movable members may be extended and contracted multiple times while the reamer is downhole.