摘要
复杂介质井间地震层析成像是一个很复杂的非线性反演问题 ,常规的线性化反演方法无法得到好的解 .采用基于图形的弯曲射线追踪方法 ,并将小波多尺度思想引入到井间层析成像 ,提出了小波多尺度井间地震层析成像方法 ,很好地解决了非线性成像的难题 ,提高了图像的质量和分辨率 .物理模型实验结果表明 ,该方法适合于复杂介质成像 ,并具有良好的实用性和效果 .
Crosshole seismic tomography in complex media is a very complicated nonlinear inverse problem. It is difficult to obtain a satisfactory and clear image by using linearized tomographic method. This paper proposes a wavelet transform based on multi-scale inverse method of seismic travel-time tomography using the forwarding method of the graph based on bending ray tracing. This method effectively solves the difficulty of nonlinear tomography, overcomes the drawbacks of the linearized inverse methods and enhances the tomographic resolution. The results of physical modeling show that the method is high resolution, suitable to complicated models and good effect.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第1期113-117,共5页
Chinese Journal of Geophysics
基金
中国石油天然气集团公司"95"重点项目 (970 1 0 3) .
关键词
地震层析成像
走时层析成像
数值模型
小波分析
Crosshole seismic, Travel-time tomography, Wavelet multi-scale inversion.
