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    • 6. 发明授权
    • Multi-position valves for fracturing and sand control and associated completion methods
    • 用于压裂和防砂的多位置阀门以及相关的完井方法
    • US08127847B2
    • 2012-03-06
    • US11949403
    • 2007-12-03
    • Bennett M. RichardMichael H. JohnsonPeter J. Fay
    • Bennett M. RichardMichael H. JohnsonPeter J. Fay
    • E21B43/10
    • E21B43/04E21B34/06E21B43/08E21B43/14E21B43/261E21B2034/007
    • A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves one series of which can be put in the wide open position after run in for gravel packing and fracturing zones one at a time or in any desired order. These valves are then closed and another series of valves can be opened wide but with a screen material juxtaposed in the flow passage to selectively produce from one or more fractured zones. An annular path behind the gravel is provided by an offset screen to promote flow to the screened production port. The path can be a closed annulus that comes short of the production port or goes over it. For short runs an exterior screen or shroud is eliminated for a sliding sleeve with multiple screened ports that can be opened in tandem.
    • 将完成的管状物放置在邻近待破碎和产生的区域的位置。 它优选地具有滑动套管阀,其中一个系列可以一次运行或以任何所需的顺序进入砾石包装和压裂区域之后可以放在大开的位置。 然后这些阀被关闭,另一系列的阀可以敞开,但在流动通道中并排放置一个筛选材料,以选择性地从一个或多个断裂区产生。 砾石背后的环形路径由偏移屏幕提供,以促进流向筛选的生产端口。 该路径可以是一个封闭的环路,缺少生产港口或越过它。 对于较短的运行,消除了外部屏幕或护罩,用于具有可以串联打开的多个屏蔽端口的滑动套筒。