Geological model of Lobodice underground gas storage facility based on 3D seismic interpretation

Lukáš KOPAL; Pavel ČÍŽEK; Ján MILIČKA

doi:10.1515/congeo-2016-0009

Lukáš KOPAL RWE Gas Storage, s.r.o., Prosecká 855/63 190 00 Praha 9, Czech Republic
Pavel ČÍŽEK RWE Gas Storage, s.r.o., Prosecká 855/63 190 00 Praha 9, Czech Republic
Ján MILIČKA Faculty of Natural Sciences, Comenius University, Bratislava, Slovak Republic

DOI: https://doi.org/10.1515/congeo-2016-0009

Keywords: underground gas storage, 3D seismic acquisition and processing, 3D seismic interpretation

Abstract

The Lobodice underground gas storage (UGS) is developed in a natural aquifer reservoir located in the Central Moravian part of the Carpathian Foredeep in the Czech Republic. In order to learn more about the UGS geological structure a 3D seismic survey was performed in 2009. The reservoir is rather shallow, 400–500 m below the surface. This article describes the process workflow from the 3D seismic field data acquisition to the creation of the geological model. The outcomes of this workflow define the geometry of the UGS reservoir, its tectonics and the sealing features of the structure. Better geological knowledge of the reservoir will reduce the risks involved in the localization of new wells for increasing UGS withdrawal rates.