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热词
    • 8. 发明授权
    • Sand check filter
    • 砂检查过滤器
    • US09421484B2
    • 2016-08-23
    • US13310974
    • 2011-12-05
    • Michael Brent Ford
    • Michael Brent Ford
    • B01D35/02E21B17/10
    • B01D35/02E21B17/1071Y10T137/794
    • A sand check filter for preventing solids from reentering into a pump. The filter is designed to mount atop a conventional rod pump. The filter allows well fluid, that contains high solids, to pass through the pump under normal operation while eliminating the solids from being swept back into the pump barrel. The filter includes a sleeve that has radial flutes that allows the sleeve from hanging up, sticking to or wedging itself to the valve rod. The sleeve is rotated on the valve rod to create a valve effect atop the filter. This prevents the fluid from passing through the inner diameter of the screen and forces solids within the fluid to be redirected to the outer diameter of the filter. This allows the fluid to be filtered before reentering the pump.
    • 用于防止固体重新进入泵的砂检查过滤器。 过滤器设计用于安装在常规杆式泵上。 过滤器允许含有高固体的良好流体在正常操作下通过泵,同时消除固体被扫掠回泵筒。 过滤器包括具有径向凹槽的套筒,其允许套筒挂起,粘附或将其自身楔入阀杆。 套筒在阀杆上旋转以在过滤器顶部产生阀效应。 这防止流体通过筛网的内径并迫使流体内的固体重新定向到过滤器的外径。 这样可以在重新进入泵之前对流体进行过滤。