Importance

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Abstract

A method of deterministically computer generating a model of a response voltage waveform of a seismic receiver employed in a seismic, particularly marine, data gathering system, the model incorporating factors that have been identified as significant contributions to amplitude, such as directivity, divergence, attenuation, interbed multiples, and transmissivity. The model is generated from the mathematical manipulation of well log data and data gathering system characteristics into a seismic range equation, namely: ##EQU1## where E.sub.r (f)=received energy density E(f)=radiated energy density D(.theta..sub.s, .phi..sub.s, f)=source directivity along .theta..sub.s, .phi..sub.s direction at the source A.sub.c (.theta..sub.H, .phi..sub.H, f)=Capture area along .theta..sub.H, .phi..sub.H direction at the hydrophone array R.sub.T =target reflection coefficient D.sub.v =divergence ##EQU2## One preferred use of the resulting modeled waveform is in a pre-process comparison with actual seismic data for validating and interpreting such actual data. Another use is in the deconvolution of seismic data for improved resolution.

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First Claim