【摘要】 <正> 前言 确定在一定抽汲方式下抽油机悬点的最大载荷是选择抽油设备及抽油技术设计中必须首先解决的问题。已有的计算方法不是因过于简化而误差较大,就是虽然较精确,但计算比较繁琐。本文将从抽汲过程中抽油杆柱的纵向振动出发,提供一种计算悬点最大载荷的简化方法,并与实测资料及其它计算方法进行比较。更多还原

【Abstract】 A new formula of determining maximum polished rod load has been presented, where the free vibration and inertia force of sucker rod string are taken into consideration. The calculation results of this formula as well as other methods were compared with field measured values. This formula gives better agreement and the calculation procedure is simpler too.更多还原