The lifetime of the electrical submersible pumping unit is the main factor affecting the overhaul period of electrical pumping unit.
对电泵井故障模式的调查和统计表明，潜油电泵机组使用寿命是影响电泵井检修周期的主要因素。
On the basis of the logic relation of all members of a pumping unit, a reliability model for electrical submersible pumping unit was developed.
根据机组中各部件逻辑功能关系，构建了其可靠性模型为串联系统。
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