应用小波变换和C3相干算法检测地震剖面同相轴

SEISMIC EVENT DETECTION BASED ON WAVELET TRANSTORM AND C3 COHERENCE ALGORITHM

为了提高地震剖面的信噪比和分辨率,使反射同相轴容易被识别和追踪,这里提出了一种应用小波算法及C3相干算法检测地震反射同相轴的新方法。利用小波算法提高地震剖面分辨率,减少大部分随机噪声,再运用C3相关算法和倾角扫描法检测地震剖面同相轴。应用该方法对模型数据进行了试算,证明了可行性,然后检测实际地震剖面同相轴,处理后的地震剖面同相轴品质及连续性都有了明显改善,信噪比增强,分辨率相应提高。

In order to enhance the signal/noise ratio and resolution of seismic section, and to distinguish and pursue the seismic event more easily, the wavelet transform and C3 coherence algorithms are applied to detect the seismic event. The results of synthetic and real data processing with the new technique show that the quality and consecutive of seismic events are obviously improved and the signal/noise ratio and resolution of seismic section are also enhanced.