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本文论述了常规型抽油机增加冲程的技术改造原理和方法,并在性能试验和应力测试的基础上,对其改进的可靠性进行了分析。经改造的抽油机冲程可增加40％,改造费用只占购买同型号新机费用的五分之一左右。作者建议在油田推广这项改造技术。
This paper discusses the principle and method of technological innovation of conventional pumping unit with increased stroke. Based on the performance test and stress test, the reliability of the improved pumping unit is analyzed. The modified pumping stroke can be increased 40%, the cost of retrofitting only accounts for about one-fifth of the cost of buying a new aircraft of the same model. The author suggests to promote this retrofit technology in the field.