増油短节提高抽油杆系统效率的机理研究及应用

断块油气田

2014年 21卷第01期

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Title

Mechanism and application of rod system efficiency promotion by stimulative nipple

作者

曲占庆¹ 李小龙¹ 程宇辉² 杨林² 杨阳³ 肖雯⁴

单位

中国石油大学（华东）石油工程学院，山东青岛 266580 中国石化江苏油田分公司试采二厂，江苏淮安 211600 中海油研究总院，北京 100027 中国石化胜利油田分公司采油工艺研究院，山东东营 257000

Organization

College of Petroleum Engineering, China University of Petroleum, Qingdao 266580, China Working Management Department of No.2 Oil Production Test Plant, Jiangsu Oilfield Company, SINOPEC, Huaian 211600, China CNOOC Research Institute, Beijing 100027, China Research Institute of Oil Production Technology, Shengli Oilfield Company, SINOPEC, Dongying 257000, China

摘要

目前油田生产中抽油泵漏失、抽油杆系统效率低等问题严重，增油短节作为一种成本低廉、使用方便的井下工具，具有减少冲程损失、减轻偏磨、减少漏失、提高泵效的功能。通过理论分析，阐述了增油短节作用机理；结合现场应用，优化了增油短节排布，得出了其最佳安装数量、理论提升抽油杆系统效率最大值，以及两者的计算模型。

Abstract

At present, the pump leakage and low efficiency of rod system are serious problems in the procedure of oilfield development. As one kind of low-cost and convenient tool, stimulative nipple is effective in stroke loss reducing, eccentric wear and leakage mitigating, pump efficiency improving. Through theoretical analysis and combined with field application, this paper elaborated the mechanism of stimulative nipple. Through the improvement of stimulative nipple configuration, the optimal number of installation and the maximum of efficiency promotion were drawn. The calculation model for installation number and efficiency promotion of stimulative nipple were built.