地震信号倒谱分解技术及其在超深层碳酸盐岩储层烃类检测中的应用

张永升, 黄超, 刘军, 张永恒, 王兴建, 薛雅娟

Cepstrum decomposition of seismic signals and its application in hydrocarbon detection of ultradeep carbonate reservoirs

ZHANG Yong-Sheng, HUANG Chao, LIU Jun, ZHANG Yong-Heng, WANG Xing-Jian, XUE Ya-Juan

图7 傅里叶倒谱和小波包倒谱提取的一阶和二阶共倒谱剖面 a—傅里叶变换倒谱提取的一阶共倒谱剖面;b—傅里叶变换倒谱提取的二阶共倒谱剖面;c—小波包倒谱提取的一阶共倒谱剖面;d—小波包倒谱提取的二阶共倒谱剖面

Fig.7 First and second-order common quefrency sections extracted from Fourier-based cepstrum and wavelet-based cepstrum a—first-order common quefrency section extracted by Fourier-based cepstrum;b—second-order common quefrency section extracted by Fourier-based cepstrum;c—first-order common quefrency section extracted from wavelet-based cepstrum;d—second-order common quefrency section extracted from wavelet-based cepstrum