基于高维连续小波变换的地震资料不连续性检测方法研究

发布时间：2018-04-21 03:23

本文选题：高维连续小波变换 + 快速傅里叶变换　；参考：《地球物理学报》2016年09期

【摘要】：断层等不连续性结构的检测在地震勘探中具有重要的意义.本文简单介绍了高维连续小波变换的基本理论,包括:高维连续小波变换的定义、高维小波变换系数的切片以及快速实现方法等,利用典型的合成信号说明了高维连续小波变换具有更好的方向选择性(相比于常用的高维张量积小波变换),将高维连续小波变换引入地震资料不连续性检测,并提出了利用小尺度高维连续小波变换系数检测地震资料不连续性的方法,同时给出了方法的实现流程.合成信号以及实际三维地震数据处理效果验证了本文所提方法的有效性.
[Abstract]:The detection of discontinuous structures such as faults is of great significance in seismic exploration. This paper briefly introduces the basic theory of high-dimensional continuous wavelet transform, including the definition of high-dimensional continuous wavelet transform, the slice of high-dimensional wavelet transform coefficient and the method of fast realization, etc. The typical synthetic signal shows that the high-dimensional continuous wavelet transform has better directional selectivity. Compared with the conventional high-dimensional tensor product wavelet transform, the high-dimensional continuous wavelet transform is introduced to the seismic data discontinuity detection. A method for detecting discontinuity of seismic data using small scale high dimensional continuous wavelet transform coefficients is proposed, and the realization flow of the method is also given. The effect of synthetic signal and 3D seismic data processing proves the effectiveness of the proposed method.
【作者单位】：西安交通大学计算地球物理科学系;中国科学院地质与地球物理研究所;西安交通大学电子与信息工程学院;中海油研究总院;
【基金】：国家自然科学基金(41390454,41504092,41274125) 中国博士后基金(2016T90925,2015M572566) 中央高校基本科研业务费专项资金北京数学与信息交叉科学协同创新中心油气勘探与开发平台联合资助
【分类号】：P631.44

【相似文献】