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    • 4. 发明公开
    • DOWNHOLE FLUID FLOW CONTROL SYSTEM HAVING A FLUIDIC MODULE WITH A BRIDGE NETWORK AND METHOD FOR USE OF SAME
    • 流动控制系统与具有桥接网络及其使用方法流体模块油孔
    • EP2748410A4
    • 2015-12-23
    • EP12826262
    • 2012-08-05
    • HALLIBURTON ENERGY SERVICES INC
    • FRIPP MICHAEL LINLEYDYKSTRA JASON DGANO JOHN CHARLESHOLDERMAN LUKE WILLIAM
    • E21B21/08E21B34/06E21B34/08E21B34/16
    • E21B34/08E21B43/08E21B43/12
    • A downhole fluid flow control system includes a fluidic module (150) having a main fluid pathway (152), a valve (162) and a bridge network. The valve (162) has a first position wherein fluid flow through the main fluid pathway (152) is allowed and a second position wherein fluid flow through the main fluid pathway (152) is restricted. The bridge network has first and second branch fluid pathways (163, 164) each having a common fluid inlet (166, 168) and a common fluid outlet (170, 172) with the main fluid pathway (152) and each including two fluid flow resistors (174, 176, 180, 182) with a pressure output terminal (178, 184) positioned therebetween. In operation, the pressure difference between the pressure output terminals (178, 184) of the first and second branch fluid pathways (163, 164) shifts the valve (162) between the first and second positions.
    • 一种井下流体流动控制系统包括具有主流体通路(152),阀(162)和桥接网络中的流体模块(150)。 所述阀(162)具有通过允许主流体通路(152)和通过主流体通路(152)worin流体流动的第二位置worin流体流动的第一位置被限制。 桥式网络具有第一和第二分支的流体路径(163,164),每个具有一个共同的流体入口(166,168)和一个共同的流体出口(170,172)与所述主流体通路(152),并且每个包括两个流体流动 有电阻器(174,176,180,182)与位于一个压力输出端子(178,184)之间。 在手术中,第一和第二分支的流体路径(163,164)的压力输出端子(178,184)之间的压力差移位的第一和第二位置之间的阀(162)。