In order to remove the NMO stretching effect appeared in traditional seismic NMO processing, the paper reviewed the physical meaning of NMO: computing auto-exiting and auto-receiving seismic records at zero-offset position on non-zero offsets seismic records, and starting from that point, gave convolution model-based NMO conception mathematically (so-called true NMO).

To investigate the influence of transmission attenuation of seismic waves in a layercake model, the authors formulated a seismic convolution model by considering the coefficient of transmission attenuation, and then provided a new forward algorithm for the modelbased seismic inversion of impedance.

The essential of studying the forward and inverse problems of converted wave with the use of convolution model is to deduce recursion formula of the reflection coefficient.

Having analysed the principles and problems of CDPstacking and linear convolution model,I deem that existing hydrocarbon predictiontechniques based on horizontal stacked (migrated) data are only applicable to hydrocarbon prediction in the area where surface and subsurface conditions are simple,butfails to achieve hydrocarbon prediction in complicated area.

Dynamic wavelet estimation based on the dynamic convolution model.;