A simple algorithm for band-limited impedance inversion

Robert James Ferguson, Gary F. Margrave

This paper describes a seismic inversion method which has been cast as a MATLAB algorithm called BLIMP (Band Limited IMPedance). It can be used to invert seismic data using a well log, or some known impedance function, to provide low frequency which, using common acquisition methods, is required by the inversion process.

Vertical component data from the Blackfoot broad-band 2D 3C seismic survey were used as inversion examples. A comparison of the inversion results from the 10 Hz and 2 Hz data sets showed that the recorded low frequencies in the 2 Hz data were reliable.BLIMP was found to be simple to use, robust, and provided accurate impedance estimates