An 'Inverse CCS Site' in NW Hungary – Geology and Modeling

The research of natural analogues for future CCS projects is a dynamically growing sector of geoengineering. In our work this newly discovered aspect of a CO2 field is presented. In NW Hungary there is a field utilized for more than 60 years. Thus there is a large amount of data from hydrocarbon exploration, gas measurements, seismic sections, well logs, and porewater analysis. Modelling work is done to describe the interactions resulting in the experienced situation to provide an estimate for a planned CO2 reservoir similar to this natural analogue in pressure, temperature, hydrogeology, tectonics, and composition.