抽油机自适应柔性控制技术的研究与应用  

Study on adaptive flexible control technology for pumping units and its application

作　　者：段志刚[1] 叶红[1] 司志梅[1] 王志[1] DUAN Zhigang;YE Hong;SI Zhimei;WANG Zhi(Petroleum Engineering Technology Research Institute of Jiangsu Oilfield,SINOPEC,Yangzhou 225009,China)

机构地区：[1]中国石化江苏油田分公司工程技术研究院,江苏扬州225009

出　　处：《复杂油气藏》2020年第1期84-87,共4页Complex Hydrocarbon Reservoirs

摘　　要：为解决抽油机井存在调参范围小、悬点载荷峰值大、泵效低、电能浪费的问题,开展了抽油机自适应柔性控制技术的研究应用。研发了流量趋势监测仪,形成了抽油机智能调冲技术;从抽油杆的速度特征、中和点位置、杆柱应力和使用寿命等方面,对比优选了M曲线的控制方法,形成了柔性控制技术;现场应用32井次,平均单井冲数下降了49%,节能40.5%,还能延长油井检泵周期。There are some problems in rod pumping wells,such as a small range of adjusting parameters,a large peak value of polished rod load,low pump efficiency,and a large amount of electric energy waste,and so on.In order to solve these problems,it was carried out studies on adaptive flexible control technology for pumping units.The flow trend monitor was developed to form the intelligent stroke adjustment technology of the pumping unit.According to speed characteristics,neutral point position,rod string stress,the service life of sucker rod,etc.,it was compared and optimized the control method of M-curve.So,it was formed the flexible control technology.This technology has been applied in 32 wells,in which there is the average stroke number of single well decreased by 49%,a single well energy saving of 40.5%,and the prolonged pump inspection cycle of oil wells.

关 键 词：抽油机 智能调冲 柔性控制 变频 

分 类 号：TE938[石油与天然气工程—石油机械设备]