定向井有杆泵二维诊断的数学模型  

A TWO-DIMENSION DIAGNOSING MATHEMATICAL MODEL OF THE SUCKER-ROD PUMP FOR DIRECTIONAL WELL

作　　者：张洪亮[1] 董喜贵 郑俊德[1] 

机构地区：[1]大庆石油学院开发系 [2]大庆采油工艺所

出　　处：《大庆石油学院学报》1992年第1期38-44,共7页Journal of Daqing Petroleum Institute

摘　　要：建立了定向井有杆泵二维诊断的数学模型。该模型考虑了抽油杆和液柱两个振动系统在平面内的振动情况,并推导出在拟静态平衡条件下抽油杆与油管之间摩擦力的计算公式。通过实际计算,诊断结果与现场实际作业结果吻合,可供现场工作人员在诊断定向井泵况时参考使用。此外,该模型经过简化,可以适用于直井有杆泵的泵况诊断。A two dimensional mathematical model is presented for diagnosing the behavior of the sucker rod pump of directional well. The model in- corporates the dynamics of the liquid column as well as the dynamics of the sucker rod string in one-plane, and a formula is also developed for calculating the frictional force between the sucker rod and the tube under the condition of pseudostatic state. Down hole conditions diagnosed by the model are identical with the actual situations of the production, which demonstrates that the created mathematical model is correct and practical, and it can be used to diagnose the down hole pumping conditions of the directional well. In addtion, it can be simplified for analyzing the sucker rod pumping system of a vertical well.

关 键 词：采油 定向井 有杆泵 二维诊断 

分 类 号：TE243[石油与天然气工程—油气井工程]