摘要
根据井筒液在油气浸入前后系统特性的差异，本文提出一种基于子空间拟合系统辨识的井口声发射井筒液油气浸入检测方法．方法仅需比较井筒液油气浸入前后的特性就可以检测其是否油气浸入．计算机模拟实验验证了方法的有效性．
According to the difference of wellhole fluid system before and after oil/gas influx and based on subspace fitting, a novel approach,which identifies wellhole fluid system and detects the oil/gas influx with wellhead acoustic emission, is proposed in this paper. Only comparing with the system impulse response before and after oil/gas influx, it may detect whether the event happens Computer simulation confirms its availability
出处
《信号处理》
CSCD
2000年第B12期78-82,共5页
Journal of Signal Processing
基金
国家重点实验室资助
关键词
井口声发射
油气浸入
系统辨识
井筒液
油井测量
Wellhead Acoustic Emission Oil/gas Influx Subspace Fitting System Identification
