It may provide theory gists to design handling equipment and gas-lift stability analysis, and offer guiding opinions for field practice of single string pig lift.
为连续气举现场应用处理设备的选择以及气举稳定性分析提供了理论依据，并为单管球塞气举的现场应用提供指导性意见。
Special Appliance Safety Operation Certificate/ Calibration Report such as Lift, Lifting Appliance, Forklift, Boiler and Compressing Equipment including Gas Cylinders, Gauge and Safety Valve).
特种设备注册登记及检验文件，如电梯、起重机械、铲车、锅炉及压力容器（含气瓶，压力表及安全阀）等。
Submersible electric pump is a kind of artificial lift equipment used for oil producing, it has encountered many technical troubles during dewatering gas production.
电潜泵是一种最早用于采油的人工举升设备，用它进行排水采气碰到了许多技术难题。
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