利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.027 秒)

    Full function downhole valve and method of operating the valve
    2.
    发明授权
    Full function downhole valve and method of operating the valve 有权
    全功能井下阀和操作阀的方法

    公开(公告)号：US07954555B2

    公开(公告)日：2011-06-07

    申请号：US12386780

    申请日：2009-04-23

    申请人： Thomas M. Ashy ,  Jace E. Melder ,  Paul L. Connell

    发明人： Thomas M. Ashy ,  Jace E. Melder ,  Paul L. Connell

    IPC分类号： E21B34/06

    CPC分类号： E21B21/103

    摘要： Downhole valves comprise a housing having a bore, a port, upper and lower recesses disposed in an inner wall surface of the bore, the upper recess disposed above the port and the lower recess disposed below the port, and upper and lower pistons disposed in the bore. The upper and lower pistons each comprise a bore with a port in communication with housing bore. During run-in, the housing port is blocked by the lower piston. Actuation of the lower piston unblocks the housing port and aligns the lower piston port with the lower recess. Actuation of the upper piston closes the housing port and aligns the upper piston port with the upper recess. Alignment of the ports of the pistons with their respective recesses permits fluid flow through the tool both when the valve is opened by the lower piston and closed by the upper piston.

    摘要翻译： 井下阀包括具有孔，端口，设置在孔的内壁表面中的上凹部和下凹槽的壳体，设置在端口上方的上凹部和设置在端口下方的下凹部，以及设置在孔中的上下活塞 孔。 上下活塞各自包括具有与壳体孔连通的端口的孔。 在进入过程中，外壳端口被下活塞堵塞。 下活塞的致动解除了壳体端口并使下活塞端口与下凹槽对准。 上活塞的致动关闭外壳端口，并将上活塞端口与上凹槽对齐。 当阀门被下活塞打开并被上活塞关闭时，活塞的端口与它们各自的凹口的对准允许流体流过工具。

    Shear type circulation valve and swivel with open port reciprocating feature
    3.
    发明授权
    Shear type circulation valve and swivel with open port reciprocating feature 失效
    剪切式循环阀和带开口的往复式回转功能

    公开(公告)号：US07703533B2

    公开(公告)日：2010-04-27

    申请号：US11751960

    申请日：2007-05-22

    申请人： Thomas M. Ashy ,  Gregory L. Hern

    发明人： Thomas M. Ashy ,  Gregory L. Hern

    IPC分类号： E21B34/12

    CPC分类号： E21B21/103 ,  E21B23/006 ,  E21B34/12

    摘要： A tool and associated method allows a liner top to be dressed. Then while maintaining a lateral port closed the tool can be used to circulate while being rotated and reciprocated. The tool features discrete j-slot mechanisms. The upper j-slot allows the lateral port to initially open while the lower j-slot keeps the lateral port open despite movement of the tool in opposed directions in the hole due to a barrier to the pin in the lower j-slot. When enough weight is set or the barrier is otherwise removed, the lateral port can be closed and the test packer set by set down weight with the lateral port closed. After the packer is unset the lateral ports can be reopened and circulation and swiveling on a bearing can occur even if the packer is temporarily actuated from the setting down motion that reopened the lateral ports.

    摘要翻译： 工具和相关联的方法允许衬衫上衣穿着。 然后在保持横向端口关闭的同时，可以使用该工具在旋转和往复运动的同时循环。 该工具具有离散的j槽机制。 上部j形槽允许侧向端口初始打开，而下部j形槽保持横向端口打开，尽管工具在孔中的相反方向上移动，这是由于下部J形槽中的销钉的阻挡。 当设置足够的重量或者否则除去屏障时，可以关闭侧向端口，并且通过将侧向端口关闭来设定测试封隔器。 在封隔器松开之后，即使封隔器暂时从重新打开侧向端口的放下运动中启动，可以重新打开侧向端口，从而可以在轴承上循环和旋转。