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    • 5. 发明申请
    • APPARATUS, SYSTEMS AND METHODS FOR BYPASSING A FLOW CONTROL DEVICE
    • 用于旁路流量控制装置的装置,系统和方法
    • WO2013158085A1
    • 2013-10-24
    • PCT/US2012/034010
    • 2012-04-18
    • HALLIBURTON ENERGY SERVICES, INC.HOLDERMAN, LukeSMART, David
    • HOLDERMAN, LukeSMART, David
    • E21B34/12E21B43/12E21B43/20
    • E21B34/08E21B23/006E21B34/063E21B43/12E21B2034/007
    • A bypass assembly for use in a downhole tool comprises a chamber, a first fluid port in fluid communication with the chamber, a second fluid port in fluid communication with the chamber, a flow restrictor disposed in a first flow path between the first fluid port and the second fluid port, a piston moveable in a first direction by the application of a first fluid pressure, a biasing member, and a restraining member disposed adjacent to the piston. The biasing member biases the piston to move in a second direction opposite the first direction, and the restraining member is actuated by movement of the piston in the first direction in response to a predetermined fluid pressure. Movement of the piston in the second direction to a predetermined position configures the bypass assembly to divert fluid flow around the flow restrictor along a second flow path.
    • 用于井下工具的旁路组件包括腔室,与腔室流体连通的第一流体端口,与腔室流体连通的第二流体端口,设置在第一流体通道中的限流器,位于第一流体端口和 所述第二流体端口,通过施加第一流体压力,偏压构件和邻近所述活塞设置的限制构件在第一方向上可移动的活塞。 偏置构件偏压活塞沿与第一方向相反的第二方向移动,并且约束构件通过响应于预定流体压力沿第一方向的活塞的运动而致动。 活塞在第二方向上移动到预定位置构成旁路组件以沿着第二流动路径转移围绕限流器的流体流动。