Downhole tools with ball trap
    2.
    发明授权

    公开(公告)号:US09702221B2

    公开(公告)日:2017-07-11

    申请号:US14211864

    申请日:2014-03-14

    IPC分类号: E21B34/14 E21B34/00

    CPC分类号: E21B34/14 E21B2034/007

    摘要: The described embodiments relate to a downhole tool that can capture a ball in a trap to prevent both upwell and downwell movement of the ball. Further, certain embodiments described herein may prevent fluid from flowing past a captured ball in either the upwell or downwell directions. Ball and seat valves incorporating such ball trap assemblies can be used to create a bi-directional plug which prevents fluid flow in either direction when the ball trap is engaged with an appropriately configured ball.

    Downhole tool
    4.
    发明授权

    公开(公告)号:US09611719B2

    公开(公告)日:2017-04-04

    申请号:US14086900

    申请日:2013-11-21

    摘要: A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, such as a burst disk, occupies at least portion of the fluid path. In one state, the shifting sleeve is in a first position between the housing ports and the sleeve ports to prevent fluid flow between the interior flowpath and exterior of the tool. The fluid control device may selectively permit fluid flow, and thus pressure communication, into the annular space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior flowpath of the tool.

    Downhole tool with expandable seat
    5.
    发明授权
    Downhole tool with expandable seat 有权
    井下工具带可扩展座椅

    公开(公告)号:US09453391B2

    公开(公告)日:2016-09-27

    申请号:US14546648

    申请日:2014-11-18

    IPC分类号: E21B34/14 E21B34/06

    摘要: A downhole tool for use in a hydrocarbon production well. The downhole tool has a housing defining a flowpath around a longitudinal axis and a seat radially expandable between an unstressed state and an expanded state. The seat has a frame comprising at least one annular sealing element and a plurality of unconnected seat segments. The seat segments are engaged with the frame. The annular sealing element are engaged with an outer surface of each of the plurality of seat segments. The seat forms a tubular structure in the unstressed state.

    摘要翻译: 用于油气生产井的井下工具。 所述井下工具具有限定围绕纵向轴线的流动路径的壳体和在无应力状态和膨胀状态之间可径向扩张的座。 座椅具有包括至少一个环形密封元件和多个未连接的座椅段的框架。 座椅段与框架接合。 环形密封元件与多个座部段中的每一个的外表面接合。 座椅形成处于无应力状态的管状结构。

    Downhole tools, system and method of using
    6.
    发明授权
    Downhole tools, system and method of using 有权
    井下工具,系统及使用方法

    公开(公告)号:US09441440B2

    公开(公告)日:2016-09-13

    申请号:US14147141

    申请日:2014-01-03

    摘要: A downhole tool comprising a nested sleeve moveable from a closed position to an open position following actuation of a fluid control device. The fluid control device may selectively permit fluid flow, and thus pressure communication, into the annular space to cause a differential pressure across the shifting sleeve, and thereby moving the shifting sleeve to an open position. A static plug seat is positioned in the tubing or casing upwell of the downhole tool. When the shifting sleeve is opened, fluid flow is established through the static plug seat, allowing a dissolvable or disintegrable ball or other plug to engage the plug seat, preventing fluid flow past the plug seat to the opened downhole tool, thereby permitting pressurization of the tubing or casing, such as for a pressure test. Disintegration of the ball allows fluid communication to be re-established with the downhole tool, permitting fluid to flow through the tubing for subsequent operations.

    摘要翻译: 一种井下工具,其包括在驱动流体控制装置之后可从闭合位置移动到打开位置的嵌套套筒。 流体控制装置可以选择性地允许流体流动并且因此压力连通到环形空间中,以在换挡套筒之间产生压差,从而将换档套筒移动到打开位置。 静态插头座位于井下工具的管道或套管上部。 当换档套筒打开时,通过静电塞座建立流体流动,允许可溶解或分解的球或其他塞子接合插塞座,防止流体流过塞座到打开的井下工具,从而允许加压 管道或套管,例如用于压力测试。 球的分解允许与井下工具重新建立流体连通,允许流体流过管道以用于随后的操作。

    Downhole tools, system and methods of using

    公开(公告)号:US09915122B2

    公开(公告)日:2018-03-13

    申请号:US14504688

    申请日:2014-10-02

    摘要: Downhole tools, including downhole valves, may actuate via a pressure differential created across a shifting element having one or more pressure surfaces isolated from fluid, and fluid pressure, flowing through the interior flowpath. Embodiment downhole tools of the present disclosure may actuate in response to, among other signals, fluid pressure in the interior flowpath of the tool and fluid pressure communicated to a pressure surface of the shifting sleeve from the exterior of the tool. Certain embodiments may also have an outlet connector whereby fluid pressure from the downhole tool may be communicated to its exterior. Isolation of the shifting element from the interior flowpath may be accomplished using a frangible, shiftable, degradable or other members which may be moved from a closed state to an open state in response to fluid conditions in the interior flowpath.

    Fracturing System and Method
    9.
    发明申请
    Fracturing System and Method 有权
    压裂系统与方法

    公开(公告)号:US20140246207A1

    公开(公告)日:2014-09-04

    申请号:US14211172

    申请日:2014-03-14

    IPC分类号: E21B43/12

    摘要: A system and method comprising at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. The system provides for the use of multiple ported sleeve assemblies for each stage of a hydrocarbon producing well that can be opened with a single element, and multiple stages, each have thFracturinge ability to be opened with a single element size.

    摘要翻译: 一种系统和方法,包括至少一个移动的套筒组件和定位在所述移动的套筒组件的下部的挡板组件。 该系统提供了使用可以用单个元件打开的烃生产井的每个阶段的多个端口套筒组件,以及多个阶段,每个阶段具有以单个元件尺寸打开的压缩能力。

    Downhole Tools, System and Method of Using
    10.
    发明申请
    Downhole Tools, System and Method of Using 有权
    井下工具,系统和使用方法

    公开(公告)号:US20140116721A1

    公开(公告)日:2014-05-01

    申请号:US14147141

    申请日:2014-01-03

    IPC分类号: E21B33/00 E21B23/00

    摘要: A downhole tool comprising a nested sleeve moveable from a closed position to an open position following actuation of a fluid control device. The fluid control device may selectively permit fluid flow, and thus pressure communication, into the annular space to cause a differential pressure across the shifting sleeve, and thereby moving the shifting sleeve to an open position. A static plug seat is positioned in the tubing or casing upwell of the downhole tool. When the shifting sleeve is opened, fluid flow is established through the static plug seat, allowing a dissolvable or disintegrable ball or other plug to engage the plug seat, preventing fluid flow past the plug seat to the opened downhole tool, thereby permitting pressurization of the tubing or casing, such as for a pressure test. Disintegration of the ball allows fluid communication to be re-established with the downhole tool, permitting fluid to flow through the tubing for subsequent operations.

    摘要翻译: 一种井下工具,其包括在驱动流体控制装置之后可从闭合位置移动到打开位置的嵌套套筒。 流体控制装置可以选择性地允许流体流动并且因此压力连通到环形空间中,以在换挡套筒之间产生压差,从而将换档套筒移动到打开位置。 静态插头座位于井下工具的管道或套管上部。 当换档套筒打开时,通过静电塞座建立流体流动,允许可溶解或分解的球或其他塞子接合插塞座,防止流体流过塞座到打开的井下工具,从而允许加压 管道或套管,例如用于压力测试。 球的分解允许与井下工具重新建立流体连通,允许流体流过管道以用于随后的操作。