The aim of paper was to show how petrophysical parameters measured in laboratory or as well logging outcomes can be used to determine hydrogeological quantity - porosity and combine it with hydraulic conductivity. Bulk density and acoustic waves velocity were applied to calculate porosity besides of laboratory mass measurements applied as standard in hydrogeology. Anisotropy question was touched because petrophysical parameters measured in two perpendicular directions revealed different results.Upper Jurassic carbonate samples from two regions of South Poland were used in laboratory measurements of elastic and reservoir properties to determine open/effective-interconnected and total porosity, bulk density and hydraulic conductivity. Petrophysical measurements of bulk density and elastic P-wave and S-wave velocities were used for total porosity determination. The obtained results were also basis for the dynamic elastic moduli calculations. Laboratory measurements and analyses were done separately for the samples cut horizontally and vertically to bedding to underline possibility of anisotropy recognition. The main goal of investigations was to determine porosity from various methods and show that well logging results can be used rather than laboratory results. Hydrogeological parameters determination from well logs might be crucial in deep aquifers prospection.