摘要
本文通过对有杆泵采油井引起抽油杆柱发生弯曲变形的载荷分析,建立了抽油杆柱的变曲微分方程,并求出了其幂级数解。对抽油杆柱的弯曲波数及变形形状进行了讨论。根据本文的方法编制的适应各种工况下计算杆柱最大弯曲波位置的软件,在大庆油田工业标准试验井得到验证。确定了滚轮接箍的合理安装位置,从而使有杆泵抽油机系统井下效率得到提高。
This paper analyzes the load which causes the deformation of sucker rod string in a rod pumping well, and establishes the differential equation of bending and gives a power series solution. The number of bending wave and deformation shape of a sucker rod string are discussed. Based on the method stated in this paper, a computer program has been developed to calculate the maximum bending position under any working condition and has been tested and verified at a field scale experimental well at Daqing Oil Field. The position of the roller-wheel coupling can be reasonabl defined, resulting in higher efficiency of the rod pumping operation.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1990年第2期106-116,共11页
Acta Petrolei Sinica
