抽油杆弹性振动规律在油井诊断技术上的应用  

APPLICATION OF ELASTIC VIBRATION RULE OF PUMPING ROD ON WELL DIAGNOSE TECHNOLOGY

作　　者：王钺[1] 冯勇[1] 秦明哲[1] 刘玉新[1] 刘丽群[2] 肖延平[1] 

机构地区：[1]吉林油田公司,吉林松原138000 [2]华北油田公司,河北任丘062552

出　　处：《石油钻采工艺》2005年第4期57-60,共4页Oil Drilling & Production Technology

摘　　要：有杆抽油方式普遍存在抽油杆的弹性振动问题。由于抽油杆柱是弹性体,在抽汲运动过程中,当受到自身的惯性负荷与液柱的惯性负荷的影响时,必然引起弹性振动,这种弹性振动规律可以通过示功图表现出来。为此,研究了抽油杆弹性振动规律和泵工作状况的内在联系,提出了利用弹性振动规律来分析示功图及计算抽汲速度、泵挂深度和断脱深度等参数的方法。There is elastic vibration for all rod pumping w ell because of rod mass loading and fluid mass loading, those elastic vibration rule can be showed by indicator diagram. Studied the relationship of elastic vib ration of rod and working conditions of pump, proposed a method to analyze indic ator diagram, calculate parameters such as swab rate, depth of plunger and depth of break by elastic vibration rule.

关 键 词：弹性振动 示功图 动力叠加 油井诊断 

分 类 号：TE933.2[石油与天然气工程—石油机械设备] TE357.7