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1、井下杆式泵阀系统一种叫“侧风”(Sidewinder)的游动阀系统,由两个阀组成,一个是拧进泵筒顶部的带套杆的套简单流阀,第二个是拧进栓塞内的游动阀。下行程式顶部阀关闭,以保持泵内压力和泵以上的静水压头。游动阀机械也旋转到开启位置,这将减少液面撞击,因为阀是在碰撞之前打开的。游动阀(靠螺旋轴实现旋转开启和关闭位置)经常开启,甚
1. Downhole rod valve system A sidewinder valve system consists of two valves, one is a simple flow valve with a rod sleeve screwed into the top of the pump cylinder, and the second Is screwed into the valve plug within the swimming. Downstream top valve is closed to maintain pump pressure and hydrostatic head above pump. The shuttle valve mechanism also rotates to the open position, which will reduce the liquid level impact because the valve opens before the collision. Travel valve (by rotating the screw shaft to achieve open and closed position) is often open, very