HYDROCARBON DETETION USING INSTANEOUS ENERGY SPECTRUM OF LOW FREQUENCY BASED ON GENERAL S TRANSFORM
基于广义S变换的低频瞬时能量谱油气检测技术

This paper deeply discussed the excellent characteristics of S transform (ST). By replacing the basic wavelet in the ST with actual seismic wavelet which was extracted from seismic data, the general S transform (GST) was achieved in the seismic data analysis. The general"three instantaneous" attribute (namely general instantaneous amplitude, frequency and phase) can be extracted from single frequency complex seismic trace which is produced by S transform. When the reservoir was filled with gas or oil, the reflected seismic energy would be attenuated in high frequency and be enhanced in low frequency. Therefore, Hydrocarbon can be detected through the low-frequency instantaneous energy spectrum based on GST. Moreover, this method had succeed in several areas such as Indonesia, Tarim and Junggar.