小波多分辨率相干数据体的提取及应用

相干数据体是从三维地震数据体中提取的一种新的地震属性，同原始振幅体比较，它可以更加精细地揭示断层、裂缝、岩性体边缘和不整合等地质现象。本文重点讨论了基于特征值计算的第三代相干体方法。为了达到多尺度分频解释的目的，本文将小波多分辨率分析应用到相干体提取过程中。应用结果表明，本方法可以提高相干体的分辨率，增强抗噪声的能力，有利于断层、裂缝等异常体的精细解释。

Detection of coherent data volume by wavelet multi resolution and application.

Coherent data volume is a new seismic attribute detected from seismic data volume,which can more finely reveal such geologic phenomenon as fault,fracture,edge of rock body and unconformity as compared with original amplitude data volume.The key point of the paper is to discuss the method of third generation of coherent data volume based on calculating eigenwert.In order to attain the goal of using multi scale frequency divided data for interpretation,the paper applied the wavelet multi resolution analysis to detect the coherent data volume.The applied results showed that the method improved the resolution of coherent data volume and enhanced the anti noise ability,being favorable for fine interpretation of the anomalous bodies such as fault and fracture.