Inflow control device with passive shut-off feature
    1.
    发明授权
    Inflow control device with passive shut-off feature 失效
    具有被动关闭功能的流入控制装置

    公开(公告)号:US07290606B2

    公开(公告)日:2007-11-06

    申请号:US11219511

    申请日:2005-09-02

    IPC分类号: E21B43/12 E21B43/14 E21B34/08

    摘要: Devices and methods for control flow of formation fluids respect to one or more selected parameter relating to the wellbore fluid. In one embodiment, a flow control device for controlling fluid flow into the production tubular uses a flow restriction member that is actuated by a character change of the formation fluid, such as liquid to gas or oil to water. The flow restriction member can be sensitive to a change in density of the formation fluid. The flow restriction member is passive, self-regulating and does not need any power source or control signal to control fluid flow. In one embodiment, the flow control device automatically rotates into a predetermined orientation upon being positioned in the wellbore. A seal disposed on the flow control devices expands into sealing engagement with an enclosure after the flow control device assumed the desired predetermined position.

    摘要翻译: 用于控制地层流体流动的装置和方法相对于与井眼流体有关的一个或多个选定参数。 在一个实施例中,用于控制进入生产管道的流体流动的流量控制装置使用流动限制构件,该流动限制构件通过地层流体(例如液体对气体或油对水)的性质改变而被致动。 流动限制构件可以对地层流体的密度变化敏感。 流量限制构件是被动的,自调节的,并且不需要任何电源或控制信号来控制流体流动。 在一个实施例中,流量控制装置在定位在井筒中时自动地旋转成预定的方位。 设置在流量控制装置上的密封件在流量控制装置假定期望的预定位置之后膨胀成与外壳密封接合。

    Mud flow back valve
    2.
    再颁专利
    Mud flow back valve 有权
    泥浆回流阀

    公开(公告)号:USRE45641E1

    公开(公告)日:2015-08-04

    申请号:US13967090

    申请日:2013-08-14

    IPC分类号: E21B33/12

    摘要: A valve for downhole use allows flow of mud or completion fluids but closes when subjected to produced hydrocarbons. The flow through the valve is through an annular passage that features a sleeve preferably made of rubber. The passage remains open during completion operations, but when hydrocarbons are produced the rubber swells and the passage is closed off. Applications include completions involving long horizontal runs and small inside diameter laterals where access to a sliding sleeve with coiled tubing or a wireline run tool is not practical.

    摘要翻译: 用于井下使用的阀门允许泥浆或完井液流动,但在经受生产的碳氢化合物时关闭。 通过阀的流动通过环形通道,该通道具有优选由橡胶制成的套筒。 通道在完井操作期间保持打开,但是当生产碳氢化合物时,橡胶膨胀并且通道被关闭。 应用包括涉及长水平运行和小内径直径的完井,其中进入具有连续油管或有线运行工具的滑动套管是不实际的。

    Expandable flow control device
    3.
    发明授权
    Expandable flow control device 有权
    可扩展流量控制装置

    公开(公告)号:US07413022B2

    公开(公告)日:2008-08-19

    申请号:US11142160

    申请日:2005-06-01

    IPC分类号: E21B43/10 E21B43/02 E21B43/08

    摘要: The invention involves the use of a base pipe perforated only in a specific section under each screen section. Inflow comes through an outer shroud that is optional and goes through the screen material and into an annular space between the screen material and the unperforated base pipe. After traveling longitudinally in that annular space, the flow must go through a restriction that preferably comprises a porous media in a passage defined outside the still unperforated base pipe. After passing through the porous media in a particular screen section, the flow can pass through openings in the base pipe. A surrounding ring preferably protects the porous media during run in and expansion and can also optionally create additional resistance to flow to work in tandem with the porous media. Other flow restricting techniques in place of the porous media are contemplated.

    摘要翻译: 本发明涉及使用仅在每个筛选部分的特定部分穿孔的基管。 流入通过外罩,其是可选的并且穿过筛网材料并进入筛网材料和未穿孔基管之间的环形空间。 在该环形空间中纵向移动之后,流动必须经过限定,该限制优选地包括在仍未穿孔基管外侧的通道中的多孔介质。 在通过特定筛分部分的多孔介质之后,流动可以穿过基管中的开口。 围绕的环优选在运行和膨胀期间保护多孔介质,并且还可以任选地产生与多孔介质串联工作的流动的附加阻力。 构想了代替多孔介质的其它流量限制技术。

    Mud flow back valve
    4.
    发明授权
    Mud flow back valve 有权
    泥浆回流阀

    公开(公告)号:US06976542B2

    公开(公告)日:2005-12-20

    申请号:US10679232

    申请日:2003-10-03

    摘要: A valve for downhole use allows flow of mud or completion fluids but closes when subjected to produced hydrocarbons. The flow through the valve is through an annular passage that features a sleeve preferably made of rubber. The passage remains open during completion operations, but when hydrocarbons are produced the rubber swells and the passage is closed off. Applications include completions involving long horizontal runs and small inside diameter laterals where access to a sliding sleeve with coiled tubing or a wireline run tool is not practical.

    摘要翻译: 用于井下使用的阀门允许泥浆或完井液流动,但在经受生产的碳氢化合物时关闭。 通过阀的流动通过环形通道,该通道具有优选由橡胶制成的套筒。 通道在完井操作期间保持打开,但是当生产碳氢化合物时,橡胶膨胀并且通道被关闭。 应用包括涉及长水平运行和小内径直径的完井,其中进入具有连续油管或有线运行工具的滑动套管是不实际的。