基于电动机运行参数的油井动液面辨识方法  

Identification of oil well dynamic liquid level based on motor operation parameters

作　　者：周万骏 白连平[1] 张利[1] 

机构地区：[1]北京信息科技大学自动化学院,北京100192

出　　处：《北京信息科技大学学报（自然科学版）》2016年第3期55-58,63,共5页Journal of Beijing Information Science and Technology University

基　　金：北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD201404126)

摘　　要：为了避免低产油井的抽油机工作在抽空状态而浪费大量电能,应实时检测动液面深度,及时反馈抽油机状态。对宽带链条抽油机电机的电压、电流、有功功率、功率因数等运行参数进行检测与分析,找到了电机有功功率及系统平衡与动液面的对应关系,利用电机运行参数的实时性,实现动液面的实时检测。在固定时刻读取使用该方法的测量值,与采油队配置的声波测试仪测量值进行比较。结果显示两种方法准确度相当,说明这种动液面辨识方法具有可行性。In order to avoid energy waste of the pumping unit when air is evacuated,the dynamic liquid level depth should be detected in time to reflect the working status of the pumping unit. For broadband chain pumping unit,the corresponding relationship between active power and system balance and dynamic liquid level is obtained by detecting and analyzing the operation parameters of motor voltage,current,active power,power factor and so on. Real time detection of moving liquid level is realized by real-time operating parameters of motor. The measured values at fixed time is compared with the those obtained by acoustic wave measuring instrument. The results show that the accuracy of the two methods is almost the same and the method in this paper is feasible.

关 键 词：宽带链条抽油机 电动机参数检测 油井动液面辨识 

分 类 号：TE937[石油与天然气工程—石油机械设备]