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    • 9. 发明申请
    • CASING FILL-UP FLUID MANAGEMENT TOOL
    • 实例灌装流体管理工具
    • WO2011113155A1
    • 2011-09-22
    • PCT/CA2011/000299
    • 2011-03-21
    • NOETIC TECHNOLOGIES INC.SLACK, Maurice WilliamALLEN, Matthew
    • SLACK, Maurice WilliamALLEN, Matthew
    • E21B21/10E21B34/06
    • E21B21/10E21B21/103E21B33/12E21B33/16E21B34/06
    • A fluid management tool for introducing fluids into a casing string incorporates a mud saver valve configured to open and allow fluid flow in response to fluid flow pressure reaching a predetermined opening pressure, and will automatically close when fluid flow pressure is reduced to or below a predetermined closure pressure, thereby preventing fluid spillage when the tool is withdrawn from the casing. The mud saver valve includes a mud saver spool having a slotted spool cage and being axially movable within a longitudinal bore in the main body of the tool, between an upper or open position in which fluid can flow out of the spool cage and into a discharge bore at the lower end of the main body, and a lower or closed position in which the lower end is seated against the exit bore to prevent flow therethrough. A check valve may be incorporated into the lower end of the mud saver spool. The fluid management tool also may incorporate a main seal and air bleed valve subassembly and a secondary suction seal and check valve subassembly.
    • 一种用于将流体引入套管柱的流体管理工具包括一个阻垢阀,其构造成响应于流体流动压力达到预定的开启压力而打开和允许流体流动,并且当流体流动压力降低到或低于预定的压力时将自动关闭 闭合压力,从而防止当工具从壳体中取出时流体溢出。 防泥塞阀包括具有开槽阀芯保持器的防泥塞阀芯,并且可在工具的主体内的纵向孔内沿轴向移动,在上部或打开位置之间流体可以从阀芯保持器流出并进入排出口 在主体的下端处具有孔,以及下端或闭合位置,其中下端抵靠出口孔抵靠以防止流过其中。 止回阀可以结合在防泥塞阀芯的下端。 流体管理工具还可以包括主密封和排气阀子组件以及次级吸入密封和止回阀子组件。