小波分析与C_3相干体在小断层解释中的应用

Application of wavelet analysis and C_3 coherence cube to interpretation of small faults

利用小波分析的分频特性及C3相干数据体比常规振幅数据体具有更高的构造分辨能力的特点,将小波分析与C3相干体两种方法相结合,用来识别煤矿采区小尺度构造,特别是识别小断层。实际应用表明,利用小波分析与C3相干体可更加精细地揭示断层等构造信息,提高小断层识别能力。

Wavelet analysis is a better tool to do time-frequency analysis than Fourier analysis, and it has a very good time-frequency decomposition effect. The C3 coherence cube is a new seismic attribute, which has higher underground structural resolution than normal amplitude cube. In this paper, by combining wavelet analysis with C3 coherence cube, a good result is obtained in identifying small scale structural anomalies especially in small faults in coal mines.