Abstract:Seismic traces essentially contain both intensity information and waveform information. Our purpose is to remove waveform informa-tion but to save effectively intensity information that is of geological significance. With the use of wavelet deconvolution in two steps: overall inverse filtering and source wavelet inverse filtering, we can remove the influence of waveform information to obtain the relative reflection coefficient series which is the characterization of the intensity information. In order to preserve the relative intensity information in raw seismic data, we can consider the sea-bottom reflection as reference layer to estimate the compensation value of target stratum. The obtained variation of intensity information may reflect the difference of lithology. Relative reflection coefficient section shows good resolution and thus favours the reduction of ambiguity in seismic interpretation. The relative reflectipn coefficient section can be used to construct well-free wave impedance and instantaneous velocity sections, which is significant to the interpretation of the seismic data collected from a well-free area.