基于Doppler的连续油管长度在线测量系统  

On-line length measuring system for continuous oil pipeline based on Doppler effect

作　　者：刘丽群[1,2] 赵周礼[3] 闻邦椿[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819 [2]东北石油大学电子科学学院,黑龙江大庆163318 [3]宝钢集团有限公司,上海201900

出　　处：《中国工程机械学报》2012年第1期115-119,共5页Chinese Journal of Construction Machinery

摘　　要：设计了一种基于激光Doppler效应的连续油管长度在线测量系统.该系统通过接收运动油管表面的散射光,经过数据采集和信号处理,测量出多普勒频移,进而求出油管运动的瞬时速度,通过积分最终得到下井油管的长度.该系统具有测量精度高、性能稳定且容易实现的特点,适合油田现场作业的要求,具有广阔的应用前景.An on-line length measuring system for continuous oil pipeline is designed based on the laser Doppler effect.By receiving the scattered lights from the surface of the moving oil pipeline,the Doppler frequency-shift is first measured via data acquisition and signals processing.Then,the instantaneous velocity of moving pipeline,along with the pipeline length,is obtained.Finally,it is proven that the proposed system,which possesses such advantages as high measurement precision,high performance stability and ease of implementation,meets the requirements of field operation and broad applicability.

关 键 词：光振动 频移 激光多普勒效应 油管长度测量 

分 类 号：TE937[石油与天然气工程—石油机械设备]