REACTION VALVE DRILLING JAR SYSTEM
    1.
    发明申请

    公开(公告)号:US20190234166A1

    公开(公告)日:2019-08-01

    申请号:US16379586

    申请日:2019-04-09

    摘要: An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a differential pressure across the valve seat. The differential pressure creates an axial force that is transferred to the jar, which aids in cocking or firing the jar. In an embodiment, a reaction valve throttles downward fluid flow to create a downward compressional force on the jar, while in another embodiment, a reaction valve throttles upward fluid flow to create an upward tensile force on the jar. Upward and downward fluid flow may be alternatively throttled for alternately firing the jar upwards and downwards. A bypass valve may be included in the drill string for establishing a drilling fluid flow path when such may be otherwise obstructed by foreign matter in the wellbore.

    REACTION VALVE DRILLING JAR SYSTEM
    2.
    发明申请
    REACTION VALVE DRILLING JAR SYSTEM 审中-公开
    反应阀钻井系统

    公开(公告)号:US20170067306A1

    公开(公告)日:2017-03-09

    申请号:US15123211

    申请日:2014-04-18

    IPC分类号: E21B31/113 E21B34/06

    摘要: An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a differential pressure across the valve seat. The differential pressure creates an axial force that is transferred to the jar, which aids in cocking or firing the jar. In an embodiment, a reaction valve throttles downward fluid flow to create a downward compressional force on the jar, while in another embodiment, a reaction valve throttles upward fluid flow to create an upward tensile force on the jar. Upward and downward fluid flow may be alternatively throttled for alternately firing the jar upwards and downwards. A bypass valve may be included in the drill string for establishing a drilling fluid flow path when such may be otherwise obstructed by foreign matter in the wellbore.

    摘要翻译: 公开了一种用于钻孔的装置和方法,包括具有至少一个罐和一个反应阀的钻柱。 钻井液流经反应阀。 反应阀被选择性地节流,这在阀座上产生压差。 差压产生一个轴向力传递到罐子,这有助于起泡或发射罐子。 在一个实施例中,反应阀节流向下的流体流动以在罐上产生向下的压力,而在另一个实施例中,反作用阀节流向上的流体流动以在罐上产生向上的张力。 可以选择性地节流向上和向下的流体流,以便向上和向下交替地点燃罐。 在钻柱中可以包括旁通阀,用于在井眼中可能被异物阻塞时建立钻井液流动路径。

    Reaction valve drilling jar system

    公开(公告)号:US10787875B2

    公开(公告)日:2020-09-29

    申请号:US16379586

    申请日:2019-04-09

    摘要: An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a differential pressure across the valve seat. The differential pressure creates an axial force that is transferred to the jar, which aids in cocking or firing the jar. In an embodiment, a reaction valve throttles downward fluid flow to create a downward compressional force on the jar, while in another embodiment, a reaction valve throttles upward fluid flow to create an upward tensile force on the jar. Upward and downward fluid flow may be alternatively throttled for alternately firing the jar upwards and downwards. A bypass valve may be included in the drill string for establishing a drilling fluid flow path when such may be otherwise obstructed by foreign matter in the wellbore.

    Tool face control of a downhole tool with reduced drill string friction

    公开(公告)号:US10435951B2

    公开(公告)日:2019-10-08

    申请号:US15035181

    申请日:2014-04-29

    摘要: A system and method for drilling is disclosed, the system including a drill string with at least one drill pipe, a bottom hole assembly and a drill bit. The bottom hole assembly includes a downhole mud motor for rotating the drill bit, and a steering motor coupled between the mud motor and the drill pipe. The downhole mud motor includes a bent housing. The drill pipe is continuously rotated to minimize friction, regardless of whether the drill bit is turned using rotary drilling or drilling with the downhole mud motor. Tool face orientation may be controlled by operating the steering motor at the drill pipe speed, but in an opposite rotational direction to thereby hold the mud motor and bent housing stationary with respect to the formation. Steering motor speed may be increased or decreased to adjust tool face orientation.

    Reaction valve drilling jar system

    公开(公告)号:US10294745B2

    公开(公告)日:2019-05-21

    申请号:US15123211

    申请日:2014-04-18

    摘要: An apparatus and method for drilling is disclosed, including a drill string with at least one jar and one reaction valve. Drilling fluid flows through the reaction valve. The reaction valve is selectively throttled, which creates a differential pressure across the valve seat. The differential pressure creates an axial force that is transferred to the jar, which aids in cocking or firing the jar. In an embodiment, a reaction valve throttles downward fluid flow to create a downward compressional force on the jar, while in another embodiment, a reaction valve throttles upward fluid flow to create an upward tensile force on the jar. Upward and downward fluid flow may be alternatively throttled for alternately firing the jar upwards and downwards. A bypass valve may be included in the drill string for establishing a drilling fluid flow path when such may be otherwise obstructed by foreign matter in the wellbore.

    TOOL FACE CONTROL OF A DOWNHOLE TOOL WITH REDUCED DRILL STRING FRICTION
    6.
    发明申请
    TOOL FACE CONTROL OF A DOWNHOLE TOOL WITH REDUCED DRILL STRING FRICTION 审中-公开
    具有减少钻孔的浮雕工具的工具面控制

    公开(公告)号:US20170037685A1

    公开(公告)日:2017-02-09

    申请号:US15035181

    申请日:2014-04-29

    摘要: A system and method for drilling is disclosed, the system including a drill string with at least one drill pipe, a bottom hole assembly and a drill bit. The bottom hole assembly includes a downhole mud motor for rotating the drill bit, and a steering motor coupled between the mud motor and the drill pipe. The downhole mud motor includes a bent housing. The drill pipe is continuously rotated to minimize friction, regardless of whether the drill bit is turned using rotary drilling or drilling with the downhole mud motor. Tool face orientation may be controlled by operating the steering motor at the drill pipe speed, but in an opposite rotational direction to thereby hold the mud motor and bent housing stationary with respect to the formation. Steering motor speed may be increased or decreased to adjust tool face orientation.

    摘要翻译: 公开了一种用于钻孔的系统和方法,所述系统包括具有至少一个钻杆,钻孔组件和钻头的钻柱。 底孔组件包括用于旋转钻头的井下泥浆马达和联接在泥浆马达和钻杆之间的转向马达。 井下泥浆马达包括弯曲的壳体。 钻杆连续旋转以使摩擦力最小化,而不管钻头是用旋转钻孔还是用井下泥浆马达钻孔来转动。 可以通过以钻杆速度操作转向马达但是沿相反的旋转方向来控制工具面方位,从而使泥马达和弯曲的壳体相对于地层保持静止。 可以增加或减少转向电机的转速,以调整工具面的方向。