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1 Annales Societatis Geologorum Poloniae

1 2013

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Multi-method approach to velocity determination from acoustic well logging

Jarzyna J., Bała M., Krakowska P.

Annales Societatis Geologorum Poloniae

2013

Vol. 83, No. 2

133–-147

Three different methods of building detailed velocity models for seismic interpretation are explained and discussed in terms of their advantages and limitations. All of the proposed methods are based on the analysis of acoustic well logs. An application of acoustic full waveform measurements, as well as the FalaFWS and Estymacja software, is presented as a tool for determining P-wave and S-wave slowness (transit time interval, velocity reciprocal). Well log data from several wells, located near the special research seismic transect in the Polish Lowland, were processed using the methods proposed. The results of data analysis are presented for a depth section of up to 3623 m for the lithostratigraphic units, recorded from the Środa Wielkopolska 5 (SW5) well. The results of P-wave and S-wave slowness filtering, used to upscale well log data to a seismic scale of resolution, are shown for the entire geological profile of the SW5 well.