compound rod string [油气] 复合抽油杆柱
rod string failure 抽油杆柱损坏
rod string vibration 抽油杆住振动
single rod string 单级抽油杆柱
flexible rod string 挠性抽油杆柱
composite rod string 组合抽油杆
tapered rod string 复合抽油杆柱
lightweight rod string 轻型抽油杆
So the theory to the application of rod string absorber in engineering is provided.
本文的定量研究为抽油杆减震器在工程中的应用提供了理论支持。
The optimal design model of downhole pump depth and rod string assemblage is set up.
建立下泵深度和抽油杆柱组合优化设计模型。
The calculating formula for critical axial load of worn rod string and tubing was set up.
建立了铅垂油井杆管偏磨临界轴向压力的计算公式。
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