Pump mechanism for cooling of rotary bearings in drilling tools and method of use thereof
    1.
    发明授权
    Pump mechanism for cooling of rotary bearings in drilling tools and method of use thereof 有权
    用于在钻具中旋转轴承的冷却的泵机构及其使用方法

    公开(公告)号:US08408304B2

    公开(公告)日:2013-04-02

    申请号:US12411173

    申请日:2009-03-25

    IPC分类号: E21B36/00 E21B7/00 E21B17/18

    CPC分类号: E21B4/003

    摘要: A bearing for a wellbore tool includes a flow device. The flow device may be a pump such as a positive displacement pump or a hydrodynamic pump. In arrangements, a pump stator connects to a wellbore wall. A pump rotor rotates with a drilling motor, and/or a drill string. Rotation of the pump rotor may generate a pressure differential to displace the fluid. The pump may be configured to flow fluid across a gap between a rotating section and a non-rotating section of the bearing. The fluid may be drawn from a wellbore annulus and also returned into the wellbore annulus. The bearing may support thrust loadings and/or a radial loadings. In embodiments, inserts in the bearing may be used to filter the fluid.

    摘要翻译: 用于井眼工具的轴承包括流动装置。 流动装置可以是诸如容积式泵或流体动力泵的泵。 在排列中,泵定子连接到井筒壁。 泵转子与钻孔马达和/或钻柱一起旋转。 泵转子的旋转可产生压差以移动流体。 泵可以构造成使流体流过轴承的旋转部分和非旋转部分之间的间隙。 流体可以从井眼环带抽出并且还返回到井眼环形空间中。 轴承可以支撑推力载荷和/或径向载荷。 在实施例中,轴承中的插入件可用于过滤流体。

    Pump Mechanism for Cooling of Rotary Bearings in Drilling Tools
    4.
    发明申请
    Pump Mechanism for Cooling of Rotary Bearings in Drilling Tools 有权
    用于冷却钻孔工具中旋转轴承的泵机构

    公开(公告)号:US20090242276A1

    公开(公告)日:2009-10-01

    申请号:US12411173

    申请日:2009-03-25

    CPC分类号: E21B4/003

    摘要: A bearing for a wellbore tool includes a flow device. The flow device may be a pump such as a positive displacement pump or a hydrodynamic pump. In arrangements, a pump stator connects to a wellbore wall. A pump rotor rotates with a drilling motor, and/or a drill string. Rotation of the pump rotor may generate a pressure differential to displace the fluid. The pump may be configured to flow fluid across a gap between a rotating section and a non-rotating section of the bearing. The fluid may be drawn from a wellbore annulus and also returned into the wellbore annulus. The bearing may support thrust loadings and/or a radial loadings. In embodiments, inserts in the bearing may be used to filter the fluid.

    摘要翻译: 用于井眼工具的轴承包括流动装置。 流动装置可以是诸如容积式泵或流体动力泵的泵。 在排列中,泵定子连接到井筒壁。 泵转子与钻孔马达和/或钻柱一起旋转。 泵转子的旋转可产生压差以移动流体。 泵可以构造成使流体流过轴承的旋转部分和非旋转部分之间的间隙。 流体可以从井眼环带抽出并且还返回到井眼环形空间中。 轴承可以支撑推力载荷和/或径向载荷。 在实施例中,轴承中的插入件可用于过滤流体。