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- Fracture feature of tube line in pumping unit well 抽油机井油管柱断裂失效特征分析
- The trend that the leaning attrition phenomenon of waterflooding pumping units well's pole and tube is increased year after year, that become the one of main reason to affect to checking pump. 水驱抽油机井杆管偏磨现象呈逐年增加的趋势，已经成为影响检泵作业的主要因素之一。
- Comprehensive matching technology for preventing side wear in pumping unit well 抽油机井防偏磨综合配套技术
- beam pump unit well 抽油机井
- pump unit well 抽油机井
- Simulation Study of the Optimizing Method for the Working Process of Oil Pumping Unit Well 抽油机井生产过程优化方法的仿真研究
- Study on the effect of flow improver on water cut oil fluidity in pumping unit well 流动改进剂对井筒内含水原油流动规律影响
- Analysis of fatigue reliability of crank pin of beam pump unit. 游梁式抽油机曲柄销疲劳可靠性分析
- Development of the well condition self-adaptive pumping unit. 井况自适应抽油机的研制。
- Can the Thor defend itself against air units well? 雷神能单靠自己能很好地抵御空军吗?
- Introduce the principle of applying negative pressure sealing &injecting pump unit, as well as the structure to prevent filter from seeping. 介绍一种采用负压密封的原理和射流泵装置,防止过滤器渗漏的结构。
- The condenser can be substituted by SK series water-ring vacuum pump or ZSWJ series hydropower spray vacuum pump unit if available. 如果采用SK系列水环真空泵或ZSWJ系列水力喷射真空泵机组。可不用冷凝器。
- Compared with the conventional beam pumping unit, it can save energy at least 21% as well as provide satisfactory service, so it is a long - stoke pump unit ... 计算结果表明:曲柄导杆式抽油机在满足使用条件下,可节电21%25以上,是一种有发展前途的长冲程抽油机。
- Modifying balance system of Model LCJ1250 chain drive pumping unit. LCJ1250链条抽油机平衡方式改造的实践
- When repairing the pump unit, install the plug attached to the service part to prevent ink from spilling. 当修理泵部件时,要安装泵的附件，以防止墨水泄漏。
- New method for power saving of beam pumping units. 游梁式抽油机节能新技术探讨。
- A down-hole autotracking well pumping unit different from the conventional pumping unit was designed. 针对抽油技术的现状和存在的问题,设计了一种不同于有杆抽油方法的井下自动跟踪式抽油装置。
- Central single zone heat pump unit, typically with ductwork. System has indoor fan and cooling coil and remote compressor/condensing unit. 有谁知道以上两种系统有什么区别?能不能举一、两个例子，对于家里房间里用的普通的空调器（带室外机和室内机的那种），是属于哪种系统呢?
- Results are significant to reasonable design and selection of large step pump stations,structures and functions of pump unit equipments. 成果对大型梯级泵站形式和机组设备结构功能的合理设计选型有重大意义。
- The differential equation of pump station start-up transient is established and derived from discharge balance and moment equation of pump unit. 摘要本文从水量平衡及水泵机组力矩方程出发，建立起水泵从起动到同步的微分方程式。
