| Title | Integrating Geological and Hydraulic Models of the Danube Basin –TRANSENERGY project cross-border pilot area |
|---|---|
| Authors | Švasta, ?ernák, Baráth, Berka, Fordinál, Goetzl, Kronome, Maglay, Maros, Nagy; Rotár-Szalkai, Sz?cs, Tóth, Uhrin |
| Year | 2013 |
| Conference | European Geothermal Conference |
| Keywords | 3D modeling, geology, hygrogeology, geothermal energy |
| Abstract | The project „TRANSENERGY“ – Transboundary Geothermal Energy Resources of Slovenia, Austria, Hungary and Slovakia”, aims to support the harmonized thermal water and geothermal energy utilization in the western part of the Pannonian Basin, focusing also on selected cross-border areas, where utilization schemes may cause future conflicts due to missing harmonized management strategies between the neighbouring countries. The Danube Basin is one of the selected pilot areas, which also forms part of delineated transboundary groundwater bodies within the Danube River Basin and as such is in the focus of ICPDR. The 3D geological model of the area is based on 146 Slovak, 189 Hungarian and 74 Austrian boreholes, 21 Slovak and 57 Hungarian seismic profiles and numerous published works. The model is the first 3D visualization of selected geological horizons covering the whole Danube basin in all three countries using unified stratigraphic scheme and fault patterns, which gives opinion on the surface geometry of pre-Tertiary basement, Badenian, Sarmatian, Lower Pannonian, Upper Pannonian and Quaternary horizons. Important fault systems and faults that cause the drop of more than 500 m are incorporated in 3D geological model. The model shows features that were not shown earlier – pre-Tertiary relief in the western part of the Danube basin and buried Lower Badenian volcanic structures. The 3D hydraulic and geothermal model is based on modelled geological horizons, lithological content (with assigned hydraulic properties), known and presumed hydraulic and geothermic boundary conditions. Main outputs of the modelling include computed shallow groundwater table, confined cold and thermal water heads in the intergranular porosity aquifers, computed flow lines, groundwater mean transit time distribution in 3D. As a result of thermal groundwater energy calculation, the model allows for an approximative assessment of geothermal potential and reserves too. |