f Phase inversion deconvolution for long and short period multiple attenuation

A new approach to deconvolution has been developed to improve the attenuation of multiple energy. This approach to deconvolution is unique in that it does not require the usual assumptions of minimum phase wavelet and random distribution of impulses. The multiples are discriminated from the primaries based on the comparison of the phase spectrums of the forward and inverse wavelet. Hence, in this paper, the techniques is called Phase Inversion Deconvolution (PID). This technique requires no velocity information in order to recognize and attenuate multiple enerqy. PID is effective in removing non-stationary as well as stationary wavelets. The phase and amplitude of the primary energy is preserved for all offset distances and can be used in the processing of data for amplitude versus offset analysis .