... well pulling machine（unit），well service hoist，well servicing rig（unit）修井机 well pumping unit抽油机 well service work修井作业 ...
基于10个网页-相关网页
multip-well pumping unit 多井共用抽油机
deep-well pumping unit 深井抽水机
cluster well pumping unit 丛式井抽油机
well pumping unit production 抽油机采油
new type well pumping unit 新型抽油机
beam double-well pumping-unit 游梁式双井抽油机
By using a wave generator, the self -exciting pressure waves can be generated when well pumping unit works.
抽油井正常工作时，借助波动器可在井底产生自激压力波。
According to the failure site data of the well pumping unit in active service, its life statistical model is determined and the service reliability is evaluated quantitatively.
由在役抽油机故障的现场数据来判定其寿命统计模型，实现对抽油机使用可靠性的定量评定。
The paper gives brief calculation and analysis for the artificial well efficiency, which aims at the optimization design for pumping unit and for reference.
文章仅对抽油机井系统效率进行简单分析与计算，旨在为优化设计抽油机运行参数提供参考。
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