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。
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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