Model HCCV hydrostatic closed circulation valve
    1.
    发明申请
    Model HCCV hydrostatic closed circulation valve 有权
    HCCV型静液压闭式循环阀

    公开(公告)号:US20050072575A1

    公开(公告)日:2005-04-07

    申请号:US10676243

    申请日:2003-10-01

    摘要: Devices and methods for methods for cleaning of excess cement from a production assembly as well as from the annulus surrounding the production assembly. A hydrostatic closed circulation valve (HCCV) assembly is described that is primarily actuatable between open and closed positions by varying hydraulic pressure in the flowbore of the production assembly. The valve assembly is useful for selectively circulating working fluid into the annulus from the flowbore of the production assembly.

    摘要翻译: 用于从生产组件以及围绕生产组件的环形空间清洁多余水泥的方法的装置和方法。 描述了一种流体静力闭环循环阀(HCCV)组件,其通过改变生产组件的气孔中的液压压力可以在打开和关闭位置之间主要致动。 阀组件可用于从工作组件的流道选择性地将工作流体循环到环形空间中。

    Model HCCV hydrostatic closed circulation valve
    2.
    发明申请
    Model HCCV hydrostatic closed circulation valve 有权
    HCCV型静液压闭式循环阀

    公开(公告)号:US20060237191A1

    公开(公告)日:2006-10-26

    申请号:US11455565

    申请日:2006-06-19

    IPC分类号: E21B43/00

    摘要: Devices and methods for methods for cleaning of excess cement from a production assembly as well as from the annulus surrounding the production assembly. A hydrostatic closed circulation valve (HCCV) assembly is described that is primarily actuatable between open and closed positions by varying hydraulic pressure in the flowbore of the production assembly. The valve assembly is useful for selectively circulating working fluid into the annulus from the flowbore of the production assembly.

    摘要翻译: 用于从生产组件以及围绕生产组件的环形空间清洁多余水泥的方法的装置和方法。 描述了一种流体静力闭环循环阀(HCCV)组件,其通过改变生产组件的气孔中的液压压力可以在打开和关闭位置之间主要致动。 阀组件可用于从工作组件的流道选择性地将工作流体循环到环形空间中。