油田因有杆采油方式中,普遍采用油管、抽油杆作为井下配套管柱,在抽油井生产过程中,由于上下冲程增、卸液柱载荷的变化,油管、杆柱会发生弹性伸缩,从而产生泵冲程损失,降低抽油泵效。同时,在井斜较大的情况下,随采油时间的延长,管、杆相互之间发生偏磨,经常出现井下油管磨穿潜心失现象,影响原油正常 Oil field due to the rod production method, the commonly used tubing, sucker rod as a supporting column underground, pumping wells in the production process, due to the ups and downs stroke, unloading column load changes, tubing, rod will be elastic telescopic, which Pump stroke loss, reduce pumping efficiency. In the meantime, under the condition of large deviation, with the prolonging of the oil extraction time, partial eccentric wear occurs between the pipe and the rod, and the downhole tubing wear often deviates from the concentration loss and affects the crude oil normal