电动机随动变速运行技术实践与认识  

The practice and understanding of motor with variable speed operation technology

作　　者：常瑞清[1,2] 戚兴 王翠 殷雷[3] 李春红 周录方[1,2] 巩宏亮[1,2] 郭振超 CHANG Ruiqing;QI Xing;WANG Cui;YIN Lei;LI Chunhong;ZHOU Lufang;GONG Hongliang;GUO Zhenchao(Production Technology Institute of Daqing Oilfield Co.,Ltd.;Heilongjiang Key Laboratory of Oil and Gas Reservoir Stimulation;No.2 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司采油工程研究院,163453 [2]黑龙江省油气藏增产增注重点实验室 [3]大庆油田有限责任公司第二采油厂

出　　处：《石油石化节能》2022年第12期55-59,共5页Energy Conservation in Petroleum & PetroChemical Industry

摘　　要：为解决游梁式抽油机井载荷冲击大、振动大,导致能耗高、系统效率低等问题,开展了电动机随动变速运行技术研究。根据抽油机系统载荷需求实时调整电动机驱动速度,做到载荷增大电动机减速,载荷减小电动机提速,实现电动机功率平稳输出。标准模拟井试验结果表明:应用该技术后电动机功率曲线平稳,功率峰值降幅最高可达70.4%,减速箱输出扭矩峰值降幅达16.2%,减速箱振动最大振幅降低76.1%;现场累计应用462口井,高沉没度井功率峰值降幅37.4%;低沉没度井节电率17%以上;合理沉没度井系统效率提高3.3个百分点。该技术超宽调频范围能实现游梁式抽油机全生命周期动态柔性运行,具有广泛的应用空间和较好的应用前景。In order to solve the problems of high load impact,high vibration,high energy consumption and low system efficiency of beam pumping wells,the research that is about variable speed operation technology of motor is carried out.According to the demand of the pumping unit system,the motor driving speed is adjusted in real time so that the motor decelerates when the load increases and the motor accelerates when the load decreases,which realizes the stationary output of motor power.The testing results of standard simulated well show that the motor power curve is stable after applying the technology.Especially,the peak power is reduced by up to 70.4%.The peak output torque of the gearbox is reduced by 16.2%,making the maximum amplitude of the gearbox vibration be reduced by 76.1%.Furthermore,a total of 462 Wells have been used this technology in the field.We can see that the peak power of high submergence wells has decreased 37.4%while the power saving rate of low submergence well is more than 17%.The system efficiency of reasonable submergence well is increased by 3.3%.Hence,this technology can realize dynamic flexible operation of beam pumping unit in its whole life cycle with its ultra-wide frequency range,and have a wide application space and a good application prospect.

关 键 词：游梁式抽油机 电动机 随动变速 功率 

分 类 号：TE933.1[石油与天然气工程—石油机械设备]