Using generalized S transform technique to predict sandstone reservoir

On the basis of wavelet transform and S transform, through popularizing basic wavelet, the basic wavelet containing 4 kinds of unknown parameters (amplitude, energy attenuation rate, energy-delay time and apparent frequency) was constructed, realizing generalized S transform. The advantages of generalized S transform are the stack sections can be directly transformed into strata-reflection sections without participation of logging data during the processing, which can carry out seismic phase interpretation straightforward on the sections and also can study the sedimentary facies if combination with drilling geologic data. The cases in both model computation and real application showed the generalized S transform can precisely determine the location of reflection interface of strata and identify the structure of thin reservoir.