摘要
应用岭回归法对波阻抗反演进行了理论和应用研究。引入了分频思想 ,将地震资料分成几个一定频宽的频段数据进行反演。在用低频成分反演时 ,避免高频噪声的影响 ;用高频成分反演时 ,避免低频噪音的影响。理论模型和实际资料的反演结果表明此方法稳定 ,反演结果可靠 。
The ridge regression method is applied to impedance inversion. The seismic data are divided into a few parts with certain frequency bandwidth in the inversion process. Then inversion of every part is performed respectively. When the inversion is made by using the low frequency componence, the effect of high frequency noise could be excluded, vice versa. The synthetic result and inversion of seismic data show that this method is robust and reliable. The ratio of signal to noise can be improved by this method.
出处
《石油大学学报（自然科学版）》
CSCD
2000年第1期85-87,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
中国石油天然气集团公司"九五""开发科技工程"项目子课题!(970106)
关键词
波阻抗反演
地震资料
频带宽
分频
数学模型
impedance inversion
ridge regression
seismic data
frequency bandwidth
frequency dividing
mathematical model
