Abstract：The ordinary processing method based on secand order cumulant theory of random signal can't meet the demands of processing when the seismic signal is non-stationary,time-variation and non-minimum phase.The paper studied the method using high-order statistic to detect and identify non-uniform reservoir.The key of the method is to analyze the feature of high-order statistic of seismic signal based on high-order statistic.It is shown by theoretical analysis and detection of real seismic signal that the non-symmetry of generalized Gauss distribution of seismic sequence and the time-frequency double-spectrum analysis method can be used for detection of low-frequency signal when the seismic signal with generalized Gauss distribution is mixed with pon-Gaussian or non-linear low- frequency signal.The method opened a new way for identifying the non-uniform carbonate reservotr.
