The paper presents effects of shale content and porosity on elastic parameters of rocks. The analysis was based on theoretical relationships for porous media, known as the Biot-Gassmann’s and Kuster and Toksöz’s models, and on Raymer-Hunt-Gardner formulas. Well-logging data and results of the quantitative interpretation of well logs were also analysed. Data were acquired by the Geofizyka Krakow SA under the project no 6T12 2003 C/06006 realized in 2003 (Pietsch et al. 2003). The relationships between P-wave and S-wave velocities and reservoir parameters may contribute to solving some problems associated with seismic interpretation of wave forms in autochthonous Miocene deposits.


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