大庆石油地质与开发2012，Vol.31Issue(1)：96-100,5.DOI:10.3969/J.ISSN.1000-3754.2012.01.019
采油螺杆泵三维热力学分析及过盈调整方法
3D THERMODYNAMIC ANALYSIS AND INTERFERENCE ADJUSTING METHOD OF THE PROGRESSIVE CAVITY PUMP FOR OIL PRODUCTION
摘要
Abstract
Through 3D numerical simulation to the rotor and stator of progressive cavity pump widely used in the oilfield and with the help of unidirectional decoupling method, the interior temperature field distribution and characteristics of the pump stator have been analyzed. At the same time, the change rules of the rotor-stator' s interference and, their influences on the operational performances of the pump are also figured out. The results show that acted by the lagged heat of the stator rubber, the changes of the stator' s profile line result in the interference and heterogeneous changes of the rotor-stator. From the angles of changing the matching and engagement of the profile line of the rotor and stator, a new interference adjusting method of the progressive cavity pump has been proposed, that is to, adjust the following two parameters simultaneously: one is the rotors diameter, the other is the eccentricity. The field test results indicate that the adjusted pump shows obvious superiorities on decreasing working torque and increasing the system efficiency. By the end of March 2011, the well number with the adjusted progressive cavity pump had been up to 36, the longest maintenance period had reached 592 d, the average working torque had reduced 13. 8 percents and the average system efficiency had increased 10. 5 percents.关键词
螺杆泵/过盈/数值模拟/温度场/解耦Key words
progressive cavity pump/ interference/ numerical simulation/ temperature field/ decoupling分类
能源科技引用本文复制引用
师国臣,孙春龙,杨楠,高宇..采油螺杆泵三维热力学分析及过盈调整方法[J].大庆石油地质与开发,2012,31(1):96-100,5.基金项目
石油采出系统节能关键技术及示范(2011BAA02B00-01)资助. （2011BAA02B00-01）
