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    • 7. 发明公开
    • SUBTERRANEAN PUMP WITH PUMP CLEANING MODE
    • 不孕不育尿液麻醉剂PUMPENREINIGUNGSMODUS
    • EP3140547A1
    • 2017-03-15
    • EP15788917.1
    • 2015-05-06
    • Unico, Inc.
    • PETERSON, Ronald G.BENDER, Jonathan D.
    • F04B47/02F04B49/00
    • A method to dislodge debris from a pump system in which the pump system includes a down-hole pump coupled by a rod string to an above-ground pump actuator, which is coupled to a controller configured to operate the pump system, and where the actuator has an adjustable stroke length. The method also includes determining that the pump system should begin operating in a pump clean mode, implementing the pump clean mode configured in the controller, and cycling the pump actuator at a preset command speed using a preset starting stroke length, preset acceleration rate and a preset deceleration rate. The method also includes continuing to cycle the pump actuator while incrementally decreasing the stroke length by a preset stroke length increment resulting in increased pump cycling frequencies. Further, the method calls for determining that the pump clean mode is complete, and returning the pump system to a normal operation mode.
    • 一种从泵系统移除碎屑的方法,其中泵系统包括通过杆串耦合到地面泵致动器的井下泵,该井下泵连接到被配置为操作泵系统的控制器。 该方法还包括确定泵系统应该以泵清洁模式开始运行,并且实现在控制器中配置的泵清洁模式。 该方法还包括在至少一个泵循环的泵冲程的一部分期间施加预设的振动频率。 此外,该方法要求确定泵清洁模式完成,并且将泵系统返回到正常操作模式。