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    MOTOR AND ROTOR CATCH ASSEMBLY
    3.
    发明申请
    MOTOR AND ROTOR CATCH ASSEMBLY 有权
    电机和转子收集组件

    公开(公告)号：US20140060936A1

    公开(公告)日：2014-03-06

    申请号：US13599901

    申请日：2012-08-30

    申请人： Michael L. Connell ,  Andrew M. Ferguson ,  Roger L. Schultz ,  Brett A. Fears ,  Robert J. Farkas

    发明人： Michael L. Connell ,  Andrew M. Ferguson ,  Roger L. Schultz ,  Brett A. Fears ,  Robert J. Farkas

    IPC分类号： E21B4/02

    CPC分类号： E21B4/02 ,  E21B21/103 ,  E21B41/0021

    摘要： A motor and rotor catch assembly for preventing loss of broken motor parts downhole. The assembly comprises a motor including a rotor supported inside a stator housing. A rotor bolt is connected to the upper end of the rotor, and is supported for axial movement within a rotor bolt housing from a running position to a deployed position. If the stator housing breaks or backs off, the attached rotor bolt shifts to the deployed position. In the deployed position, the bolt substantially reduces flow to the stator housing and simultaneously opens bypass ports to vent fluid to the annulus instead. In this way, the rotor is prevented from spinning rapidly, the diverted fluid creates a pressure change that alerts the operator to the motor failure, and the diverted fluid allows continued removal of debris and cuttings from the well bore.

    摘要翻译： 电动机和转子捕捉组件，用于防止井下电动机部件损坏。 该组件包括一个马达，其包括一个支撑在定子壳体内的转子。 转子螺栓连接到转子的上端，并且被支撑成在转子螺栓壳体内从运行位置轴向移动到展开位置。 如果定子壳体断裂或退回，附接的转子螺栓转移到展开位置。 在展开位置，螺栓基本上减少到定子壳体的流动，同时打开旁路端口以将流体排放到环形空间。 以这种方式，转子被防止快速旋转，转向的流体产生压力变化，警告操作者马达故障，并且转向流体允许从井眼继续移除碎屑和切屑。

    Jarring Method and Apparatus Using Fluid Pressure to Reset Jar
    6.
    发明申请
    Jarring Method and Apparatus Using Fluid Pressure to Reset Jar 有权
    Jarring方法和使用流体压力重置罐的装置

    公开(公告)号：US20120227970A1

    公开(公告)日：2012-09-13

    申请号：US13044785

    申请日：2011-03-10

    申请人： Roger L. Schultz ,  Andrew M. Ferguson ,  Michael L. Connell

    发明人： Roger L. Schultz ,  Andrew M. Ferguson ,  Michael L. Connell

    IPC分类号： E21B31/107

    CPC分类号： E21B31/1135

    摘要： A method and apparatus for delivering repetitive jarring impacts to a stuck object downhole. The jarring tool is deployed on coiled tubing or other tubular well conduit, and fluid pressure is used to cycle the jar without reciprocating the well conduit at the wellhead. The tool includes a hydraulic reset assembly. The hydraulic chamber is in fluid communication with the flow path through the tool. Thus, when the internal fluid pressure inside the tool exceeds the external pressure in the well, the fluid pressure drives the piston in the hydraulic chamber to urge the tool toward the contracted position. In this way, the reset assembly can overcome the tendency of fluid pressure to extend the tool. The reset assembly can be configured to balance or equalize the extension pressure, to prevent undesired cocking of the tool, or to overcome the extension pressure to contract the tool for recocking the jar mechanism.

    摘要翻译： 一种用于向井下的被卡住的物体传送重复的振动冲击的方法和装置。 刺耳工具部署在连续油管或其他管状井管道上，并且使用流体压力来循环罐，而不会在井口往复运动。 该工具包括液压复位组件。 液压室与通过工具的流动路径流体连通。 因此，当工具内的内部流体压力超过井内的外部压力时，流体压力驱动液压室中的活塞以将工具推向收缩位置。 以这种方式，复位组件可以克服流体压力延伸工具的倾向。 复位组件可以被配置为平衡或均衡延伸压力，以防止工具的不期望的起动，或者克服延伸压力以收缩工具以重新装回罐机构。

    Vortex controlled variable flow resistance device and related tools and methods
    7.
    发明授权
    Vortex controlled variable flow resistance device and related tools and methods 有权
    涡流控制可变流阻装置及相关工具及方法

    公开(公告)号：US09212522B2

    公开(公告)日：2015-12-15

    申请号：US13110696

    申请日：2011-05-18

    申请人： Roger L. Schultz ,  Michael L. Connell ,  Andrew M. Ferguson

    发明人： Roger L. Schultz ,  Michael L. Connell ,  Andrew M. Ferguson

    IPC分类号： E21B28/00 ,  E21B7/00 ,  F15D1/00 ,  E21B33/12 ,  E21B7/24 ,  E21B23/04

    CPC分类号： E21B7/24 ,  E21B23/04 ,  E21B28/00 ,  E21B33/12 ,  F15D1/0015 ,  Y10T137/2087 ,  Y10T137/2115 ,  Y10T137/8376

    摘要： A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations, especially in horizontal wells. The shape, frequency and duration of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths, through which flow may be parallel or sequential. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill string and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit.

    摘要翻译： 一种涡流控制的可变流阻电阻装置，理想用于背压工具，用于在延伸到井下操作中推进钻柱，特别是在水平井中。 由装置产生的压力波的形状，频率和持续时间由流动路径的涡流室中的涡流的增长和衰减来控制。 流动路径包括用于反转涡流室中的流动方向的开关，例如双稳流体开关。 流动路径可以包括多个涡流室，并且该装置可以包括多个流动路径，流动通过该流动路径可以是平行的或顺序的。 该装置产生短时间和较慢的频率接近钻柱的谐振频率的背压，其最大化钻柱中的轴向运动和钻头上的重量。 另外，由刀具产生的流体脉冲增强了钻头前面的碎屑清除。