Abstract：The current rod-pumping system model mainly focused on machinery, such as behavior prediction of sucker rod and structure optimization of beam pumping unit(BPU). It is not suitable for accurate analysis of electrical energy consumption and energy-saving potential. To solve this problem, taking a CYJ10 BPU driven by a Y2—280S—8, 37kW induction motor as an example, the practical simulation model considering saturation of magnetic circuit and wave equation of sucker rod is established. With this model, comparative analysis on BPU system energy consumption with different running conditions are carried out. Furthermore, aiming at the common phenomena in oilfield nowadays, such as long power lines and various working fluid levels, the system energy-saving potential is estimated, without additional investment and replacement of equipment. It indicates that the energy- saving rate is 2.5% by regulating the transformer taps. With the counter weight balance about 95% position according to the industry standard, the system still own a certain energy-saving potential. If the traditional Y-∆ conversion and reactive power compensation technology are supplemented, the comprehensive energy-saving rate can reach up to 16.8%. The reliability and accuracy of model are verified through comparing with conventional beam pumping well(BPW) test.
王博,赵海森,罗应立,李和明. 面向用户的有杆采油系统实用仿真模型及应用[J]. 电工技术学报, 2015, 30(6): 133-141.
Wang Bo,Zhao Haisen,Luo Yingli,Li Heming. Practical Simulation Model of Rod-Pumping System for Engineering Applications. Transactions of China Electrotechnical Society, 2015, 30(6): 133-141.
[1] Sam G Gibbs, Duane L Miller. Inferring power consumption and electrical performance from motor speed in oil-well pumping units[J]. IEEE Transactions on Industry Applications, 1997, 33(1): 187-193. [2] 崔学深, 罗应立, 杨玉磊, 等. 周期性变工况条件下异步电机节能机理和节能途径[J]. 中国电机工程学报, 2008, 28(18): 90-97. Cui Xueshen, Luo Yingli, Yang Yulei, et al. Energy saving theory and approach for asynchronous motor under the periodically variable running condition[J]. Proceedings of the CSEE, 2008, 28(18): 90-97. [3] 戴武昌, 赵新飞. 一种适用于抽油机的永磁同步电动机的研发[J]. 电机与控制学报, 2013, 17(2): 98-102. Dai Wuchang, Zhao Xinfei. Research of torque per- manent magnet synchronous motor used in pump jack [J]. Electric Machines and Control, 2013, 17(2): 98-102. [4] Luo Yingli, Cui Xueshen, Zhao Haisen, et al. A multi- function energy saving device with a novel power-off control strategy for beam pumping motors[J]. IEEE Transactions on Industry Applications, 2011, 47(4): 1605-1611. [5] 张玉平. 高转差率特种三相异步电动机转子新材料变质处理试验研究[J]. 中国电机工程学报, 2001, 21(8): 89-93. Zhang Yuping. The study on the modification of new material used for high slip and special threephase asynchronous motor rotors[J]. Proceedings of the CSEE, 2001, 21(8): 89-93. [6] Gibbs S G. Design and diagnosis of deviated rod- pumped wells[S]. SPE 22787, 1991. [7] Dong Shimin, Yang Cui, et al. The dynamic simula- tion model and comprehensive simulation algorithm of the beam pumping system[C]. International Con- ference on Mechanical and Automation Engineering, Jiujiang, China, 2013. [8] 饶建华, 刘宏昭, 李冬平. 定向井有杆抽油系统动态数值仿真与预测[J]. 石油机械, 2004, 32(8): 4-7. Rao Jianhua, Liu Hongzhao, Li Dongping, et al. Dynamic characteri-stics simulation and prediction of sucker rod pumping system in a directional well[J]. China Petroleum Machinery, 2004, 32(8): 4-7. [9] 夏小琴, 韦化, 阳育德. 暂态稳定约束最优潮流的改进降阶内点算法[J]. 电工技术学报, 2012, 27(9): 87-93. Xia Xiaoqin, Wie Hua, Yang Yude. An improved reduced dimension interior point method for transient stability constrained optimal power flow[J]. Transac- tions of China Electrotechnical Society, 2012, 27(9): 87-93. [10] API RP 11L. Design calculation of sucker rod pumping system[S]. American Petroleum Institute, Washington, 1967. [11] Zhao Haisen, Liu Xiaofang, Luo Yingli, et al. Time- stepping finite element analysis on the influence of skewed rotors and different skew angles on the losses of squirrel cage asynchronous motors[J]. Sci China Tech Sci, 2011, 54: 2511-2519. [12] Zhao Haisen, Zhang Jian. A design method for cage induction motors withnon-skewed rotor bars[J]. IEEE Transactions on Magnetics, 2014, 50(2): 769-772. [13] 帅智康, 肖凡, 涂春鸣, 等. 宽频域谐波谐振劣化机理及其抑制措施[J]. 电工技术学报, 2013, 28(12): 16-23. Shuai Zhikang, Xiao Fan, Tu Chunming, et al. Resonance degradation mechanism of wide-band frequency harmonics and the elimination strategy[J]. Transactions of China Electrotechnical Society, 2013, 28(12): 16-23. [14] 赵海森, 刘晓芳, 罗应立, 等. 电压偏差条件下笼型感应电机的损耗特性[J]. 电机与控制学报, 2010, 14(5): 13-19. Zhao Haisen, Liu Xiaofang, Luo Yingli, et al. Losses characteristics of cage induction motors under voltage deviation conditions[J]. Electirc Machinces and Control, 2010, 14(5): 13-19. [15] 汤蕴璆, 张奕黄, 范瑜, 等. 交流电机动态分析[M]. 北京: 机械工业出版社, 2004. [16] GB/T 1032-2012. 三相异步电动机试验方法[S]. GB, 2012. [17] 张建军, 李向齐, 石惠宁, 等. 游梁式抽油机设计计算[M]. 北京: 石油工业出版社, 2005. [18] 孙志忠. 偏微分方程数值解法[M]. 北京: 科学出版社, 2012. [19] 王博, 赵海森, 李和明, 等. 用于模拟游梁式抽油机电动机动态负荷的测试系统设计及应用[J]. 中国电机工程学报, 2014, 34(21): 88-95. Wang Bo, Zhao Haisen, Li Heming, et al. Design and applications of the testing system with dynamic load for beam pumping motor[J]. Proceedings of the CSEE, 2014, 34(21): 88-95. [20] Ansari M N, Dalal A, Kumar P. Analysis of stray loss and its determination with equivalent circuit for double cage rotor induction motor[C]. Annual IEEE India Conference, Mumbai, 2013: 1-6.
2015, Vol. 30 
