SPRING ASSISTED ACTIVE MUD CHECK VALVE WITH SPRING
    11.
    发明申请
    SPRING ASSISTED ACTIVE MUD CHECK VALVE WITH SPRING 有权
    弹簧辅助主动泥浆检查阀与弹簧

    公开(公告)号:US20140158228A1

    公开(公告)日:2014-06-12

    申请号:US13803065

    申请日:2013-03-14

    Inventor: Chen Tao

    CPC classification number: E21B49/081 E21B34/10 Y10T137/7838 Y10T137/86815

    Abstract: An apparatus, a method and a system control fluid flow through a passageway. A downhole tool pumping apparatus may have a body and an active valve block. The body has a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block has active valves configured to be actively actuated between an open position and the closed position. Two or more hydraulic lines may be connected to each active valve for controlling actuating between the open position and the closed position. A piston having a conduit is slidably disposed through the passageway and selectively closes the conduit of the piston by moving at least one of the piston and a plug.

    Abstract translation: 装置,方法和系统控制流体流过通道。 井下工具泵送装置可以具有主体和主动阀块。 主体具有容纳定位腔内的第一和第二腔室的往复活塞的空腔。 主动阀块具有构造成在打开位置和关闭位置之间被主动地致动的主动阀。 两个或多个液压管线可以连接到每个主动阀,以控制在打开位置和关闭位置之间的致动。 具有导管的活塞可滑动地设置穿过通道并且通过移动活塞和塞子中的至少一个来选择性地关闭活塞的导管。

    Dual flowline testing tool with pressure self-equalizer
    14.
    发明授权
    Dual flowline testing tool with pressure self-equalizer 有权
    双流线测试工具,带压力自平衡器

    公开(公告)号:US09416657B2

    公开(公告)日:2016-08-16

    申请号:US14078879

    申请日:2013-11-13

    CPC classification number: E21B49/10 E21B49/081

    Abstract: Flowline pressure equalizer systems, methods and/or apparatuses for use on a downhole tool are provided. A pressure equalizer may be provided in communication with two flowlines. The pressure equalizer may use equalizing chambers and equalizing pistons to regulate pressure in one or both flowlines. Further, one or more flow routing modules may be interchangeable to further alter the flow scheme between the flowlines. Different plugs may house various flow routing configurations such that the plugs may be installed and/or removed in the tool string automatically or by a user.

    Abstract translation: 提供了用于井下工具的流线压力均衡器系统,方法和/或装置。 可以提供与两条流线连通的压力均衡器。 压力均衡器可以使用均衡室并均衡活塞以调节一条或两条流线中的压力。 此外,一个或多个流动路径模块可以是可互换的,以进一步改变流线之间的流动方案。 不同的插头可以容纳各种流动路径配置,使得插头可以自动地或由用户在工具串中安装和/或移除。

    Reciprocating Pump Piston Control
    15.
    发明申请
    Reciprocating Pump Piston Control 审中-公开
    往复泵活塞控制

    公开(公告)号:US20160177714A1

    公开(公告)日:2016-06-23

    申请号:US14955203

    申请日:2015-12-01

    Inventor: Chen Tao

    Abstract: A sampling tool for conveyance within a well that extends into a subterranean formation. The sampling tool includes a displacement unit having a first cylinder, a second cylinder, a piston, and a magnet. The piston includes a first head located within the first cylinder and a second head located within the second cylinder. A stroke of the piston moves the first and second heads between first positions, in which each of the first and second heads are proximate first end walls of the respective first and second cylinders, and second positions, in which each of the first and second heads are proximate second end walls of the respective first and second cylinders. The magnet is carried with one or more of the first and second heads. The sampling tool further includes a magnetic field sensor operable to measure a magnetic field strength the magnet throughout the stroke.

    Abstract translation: 用于在井内输送的采样工具,其延伸到地层中。 采样工具包括具有第一气缸,第二气缸,活塞和磁体的位移单元。 活塞包括位于第一气缸内的第一头部和位于第二气缸内的第二头部。 活塞的冲程将第一和第二头部移动到第一位置和第二位置之间的第一位置和第二位置之间,第一和第二头部中的每一个靠近相应的第一和第二气缸的第一端壁,其中第一和第二头部 邻近相应的第一和第二气缸的第二端壁。 磁体由第一和第二磁头中的一个或多个承载。 采样工具还包括一个磁场传感器,可操作来测量整个行程中磁体的磁场强度。

    Spring assisted active mud check valve with spring
    16.
    发明授权
    Spring assisted active mud check valve with spring 有权
    弹簧辅助活塞式止回阀带弹簧

    公开(公告)号:US09359892B2

    公开(公告)日:2016-06-07

    申请号:US13803065

    申请日:2013-03-14

    Inventor: Chen Tao

    CPC classification number: E21B49/081 E21B34/10 Y10T137/7838 Y10T137/86815

    Abstract: An apparatus, a method and a system control fluid flow through a passageway. A downhole tool pumping apparatus may have a body and an active valve block. The body has a cavity housing a reciprocating piston defining first and second chambers within the cavity. The active valve block has active valves configured to be actively actuated between an open position and the closed position. Two or more hydraulic lines may be connected to each active valve for controlling actuating between the open position and the closed position. A piston having a conduit is slidably disposed through the passageway and selectively closes the conduit of the piston by moving at least one of the piston and a plug.

    Abstract translation: 装置,方法和系统控制流体流过通道。 井下工具泵送装置可以具有主体和主动阀块。 主体具有容纳定位腔内的第一和第二腔室的往复活塞的空腔。 主动阀块具有构造成在打开位置和关闭位置之间被主动地致动的主动阀。 两个或多个液压管线可以连接到每个主动阀,以控制在打开位置和关闭位置之间的致动。 具有导管的活塞可滑动地设置穿过通道并且通过移动活塞和塞子中的至少一个来选择性地关闭活塞的导管。

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