石油学报 ›› 1997, Vol. 18 ›› Issue (1): 133-136.DOI: 10.7623/syxb199701023

• 石油工程 • 上一篇    

水平井有杆泵诊断模型

刘庆吉, 宋考平   

  1. 大庆石油学院
  • 收稿日期:1996-07-15 修回日期:1996-10-09 出版日期:1997-01-25 发布日期:2010-09-06
  • 作者简介:刘庆吉,1966年毕业于北京师范学院数学系.1981年研究生毕业。现为大庆石油学院副教授。通讯处:黑龙江省安达市。邮政编码:151400。
  • 基金资助:
    大庆石油学院科研基金;黑龙江省自然科学基金

A DIAGNOSTIC MODEL FOR SUCKER ROD PUMPING OF THE HORIZONTAL WELL

Liu Qinji, Song Kaoping   

  1. Daqing Petroleum Institute
  • Received:1996-07-15 Revised:1996-10-09 Online:1997-01-25 Published:2010-09-06

摘要: 本文给出了考虑杆柱、液柱、管柱组成的有杆泵系统的泵况诊断数学模型。该模型由描述系统振动的双曲型偏微分方程组及相应的边界条件和周期性条件组成。对于所给的双曲型方程组,经特征变换变成了便于作数值计算的形式。由于考虑了带有曲线井轴的情况,该模型适用于水平井的情况,并以直井、斜井、定向井为特殊情况。编制了应用软件,对四口井地面示功图计算了泵功图,并对泵故障进行了诊断,诊断结果与检泵作业结果一致。

关键词: 水平井, 有杆泵, 双曲型方程, 示功图

Abstract: This paper gives a diagnostic model for sucker rod pumping of the horiznotal well, in which a system including the sucker rod sting subing string and liquid columns is considered.This model consists the hyperbolic partial differential equations, boundary conditions and cyclical conditions of the system.The form of the equations has been changed with fecture transformation so as to calculate conveniently.This model can be used to horizontal wells and that of vertical well, slanting well and directional well are special cases.The results of diagnosis by using the software to calculate pump dynamometer cards for four wells are consistent with the pump conditions.

Key words: horizontal well, sucker rod pumping, hyperbolic equation, dynamometer card