(1) according to the number of classification systems well single-well process systems; centralized multi-well pumping systems; hydraulic piston pump ,large centralized pumping system.
(2) Press the power fluid circulating classified, closed loop: the power was not mixed with the produced fluids. Open cycle, tank automation system the power output was mixed with liquid.
(3) the nature of power by hydraulic power fluid classification crude oil hydraulic piston pump system water-based hydraulic power fluid piston pump piston pump hydraulic lift system concepts hydraulic piston pump is a hydraulically operated rodless pumping equipment, which is powered pump from the ground the tubing or through a dedicated channel pressurized fluid is pumped back underground power, automatic vehicle identification system drive motor down reciprocating motion, power was transferred to the high-pressure cylinder and valve driven underground, to help downhole pumping piston.
Gas transmission pump is a gas can be inhaled and discharged continuously, so as to achieve the purpose of the vacuum pump exhaust. Gear pump is a rotary pump on the pump cylinder and the gear between the formation of the work of the volume change and move the transmission so that pressurized liquid or. Hydraulic piston pump or solid pump, driven by hydraulic power pack of hydraulic cylinder, hydraulic cylinder to promote the transport cylinder, conveying cylinder material output to pipeline.
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