Uncertainty Analysis for Volumetric Calculations with Use of Petrel Software

The study presents results of volumetric calculations and uncertainty analysis of gas/water contact at the Wilków-Szlichtyngowa gas field. The gas field is located in the southern part of the Fore-Sudetic Monocline, in the western part of Poland. Gas is accumulated in the Rotliegend eolian sandstones. Authors performed modelling was to count volume of basic parameters in the gas field in the deviation +/- 5meters from the basic deterministic gas/water contact set on 1509m bsl. For this purpose Petrel software was used.The results show that even a slight change in depth of gas/water contact can significantly affect Bulk volume and gas volume (HCPVg) associated with it