The calculation models of judgment on the driving motor power curve and counterbalance adjustment of the pumping unit are established through the research of counterbalance of the pumping unit;
通过研究抽油机平衡原理，建立了电机功率曲线判断及调整抽油机平衡的计算模型；
The calculation models of judgment on the driving motor power curve and counterbalance adjustment of the pumping unit are established through the research of counterbalance of the pumping unit;
通过研究抽油机平衡原理，建立了电机功率曲线判断及调整抽油机平衡的计算模型；
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