论文详情

斜直井有杆泵抽油系统井下工况诊断技术

石油钻采工艺

1995年 17卷第1期

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Title

DIAGNOSES OF DOWNHOLE WORKING CONDITIONS OF SUCKER ROD PUMPS IN DIRETIONAL WELLS

作者

李子丰张继芬李敬媛丁建国鞠占文

Authors

Li Zifeng Zhang Jifen Li Jingyuan Ding Jianguo Ju Zhanwen

单位

大庆石油学院大庆石油管理局

摘要

本文根据动力学原理,考虑井眼轨道、抽油杆柱构成、抽油杆与油管的滑动磨擦力及油液的内摩擦力,采用微元矢量分析方法,建立了定向水平井抽油杆柱纵向振动的微分方程,给出了井下动态参数诊断的定解条件。建立了该模型的差分解,编制了计算机软件,并在大庆油田采油五厂得到了较成功的应用。

Abstract

Based on the dynamics principle,differential equations of longitudinal vibfation of rod string and boundary conditions for dynamical analysis of sucker rod pumping system in directional well have been established by tuking account of well trajectory,construction of rod string,friction force between rod string and tubing,and viscous force of well fluid etc. in this paper. The said models are solved by finite difference method and the revelant computer software is worked out. This technique is applied in the 5th production department of Daqing oilfield.

关键词：

斜井; 有杆泵; 抽油; 井下; 诊断;

Keywords:

inclined well; sucker rod pump; oil pumping; downhole; diagnosis;

基金项目

DOI

10.3969/j.issn.1000-7393.1995.01.013