Prediction of serious abrasion position and mechanism of uneven abrasion between sucker rod string and tubing

doi:10.7623/syxb200502023

Editorial office of ACTA PETROLEI SINICA ›› 2005, Vol. 26 ›› Issue (2): 100-103.DOI: 10.7623/syxb200502023

• Petroleum Engineering • Previous Articles Next Articles

Prediction of serious abrasion position and mechanism of uneven abrasion between sucker rod string and tubing

YANG Hai-bin^1,2, DI Qin-feng³, WANG Wen-chang³

1. China University of Petroleum, Dongying 257061, China;
2. Jiangsu Petroleum Exploration Bureau, Yangzhou 225009, China;
3. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Received:2004-04-06 Revised:2004-10-09 Online:2005-03-25 Published:2010-05-21

抽油杆柱与油管偏磨机理及偏磨点位置预测

杨海滨^1,2, 狄勤丰³, 王文昌³

1. 中国石油大学, 山东东营, 257061;
2. 江苏石油勘探局科技处, 江苏扬州, 225009;
3. 上海大学上海市应用数学和力学研究所, 上海, 200072

作者简介:杨海滨,男,1959年7月生,1981年毕业于大庆石油学院钻井专业,现为江苏石油勘探局科技处处长,教授级高工,中国石油大学(华东)在读博士.E-mail:yanghb@joeco.com.cn
基金资助:
国家自然科学基金项目(No.50174047);中国石油化工集团公司重点科技项目"三维井眼抽油杆系统力学分析与检测研究"(No.P04059)资助.

Abstract

Abstract: Based on the practical situation of oilfield,the medium type and mechanism of abrasion between sucker rod string and tubing were analyzed.A 3D mechanics calculation model for analyzing sucker rod string was established.The relative software was programmed with VB 6.0 and Matlab 6.0 language.The influence of 3D wellbore trajectory on the stress and deformation of sucker rod string was studied with this software.The serious abrasion position can also be predicted with this software.By using new anti-abrasion joint in the serious abrasive position,the degree of uneven abrasion between sucker rod string and tubing can be largely decreased.The new anti-abrasion joint can prolong the production life of oil well and save the time of well workover.

Key words: D wellbore trajectory, sucker rod string, tubing, uneven abrasion, break-off, dynamics model

摘要： 结合油田生产实际,对抽油杆柱与油管系统的磨损介质类型和磨损机理进行了分析,建立了抽油杆三维力学综合分析模型,利用VisualBasic6.0语言和Matlab6.0语言开发了相应的仿真分析软件系统,并进行了三维井眼轨迹对抽油杆柱受力变形的影响研究。利用该软件系统,可以确定抽油杆柱与油管严重偏磨点的位置。使用新型抗摩擦接箍,可使定向井抽油杆柱偏磨的程度大幅度下降,从而节省修井时间并提高油井寿命。

关键词: 三维井眼轨迹, 抽油杆柱, 油管, 偏磨, 断脱, 动力学模型

CLC Number:

TE833.2

YANG Hai-bin, DI Qin-feng, WANG Wen-chang. Prediction of serious abrasion position and mechanism of uneven abrasion between sucker rod string and tubing[J]. Editorial office of ACTA PETROLEI SINICA, 2005, 26(2): 100-103.

杨海滨, 狄勤丰, 王文昌. 抽油杆柱与油管偏磨机理及偏磨点位置预测[J]. 石油学报, 2005, 26(2): 100-103.

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Prediction of serious abrasion position and mechanism of uneven abrasion between sucker rod string and tubing

抽油杆柱与油管偏磨机理及偏磨点位置预测

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