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    DRILL PIPE
    2.
    发明公开
    DRILL PIPE 有权
    BOHRGESTÄNGE

    公开(公告)号：EP2350432A2

    公开(公告)日：2011-08-03

    申请号：EP09753169.3

    申请日：2009-10-22

    申请人： Managed Pressure Operations Pte Ltd

    发明人： YOUNGER, Rae ,  MACGREGOR, Alex ,  BOUILLET, Adrien ,  LEUCHTENBERG, Christian

    IPC分类号： E21B21/10

    CPC分类号： E21B19/16 ,  E21B21/106

    摘要： A drill pipe having a tubular body through which is provided a main bore, a side port provided in an exterior surface of the body, a side bore extending through the body from the main bore to the side port, and a valve member which is movable between a closed position in which fluid flow through the side bore is substantially prevented and an open position in which fluid flow through the side bore is permitted, wherein the movement of the valve member between the closed position and the open position comprises translational movement, and the valve member is located at least predominantly within the side bore.

    摘要翻译： 一种具有管体的钻杆，其中设置有主孔，设置在主体的外表面中的侧端口，从主孔延伸穿过主体到侧端口的侧孔，以及可移动的阀构件 在其中基本上防止流过所述侧孔的流体流动的关闭位置和允许通过所述侧孔的流体流动的打开位置，其中所述阀构件在所述关闭位置和所述打开位置之间的运动包括平移运动，以及 阀构件至少主要位于侧孔内。