Hydrocarbon exploration in the Czech part of Vienna Basin resulted in a number of boreholes drilled. There is a number of hydrocarbon fields hosted by four stratigraphies: lower, middle and upper Badenian, and Sarmatian, each further divided into reservoir horizons. This study utilized the data from boreholes to explore the geothermal potential of the area in general, and the potential of several key spots in particular. Our dataset contains data from several horizons from each of the key stratigraphies: 4 from lower Badenian, 6 from middle Badenian, 8 from upper Badenian and 10 from Sarmatian. Lower Badenian data are scarce, showing the highest amount of inflow and highest temperatures in the southernmost part of the study area, SSW from Lanžhot village. The temperature flow rate index (TFR) in these spots reaches values of 0.75 and 0.5. The Total dissolved solids (TDS) content in fluids ranges from 11,500 to 20,290 ppm. Middle Badenian dataset is the regionally most extensive in the study area. The highest inflow values were measured in the Central Moravian Depression and in a cluster of wells between villages Moravská Nová Ves and Prušánky. Most of them are on the fringe of a localized temperature hot-spot and have the highest TFR with values of 0.75 to 0.5. TDS have lower levels, ranging 10,600 to 13,000 ppm. Higher fluid inflow rates in the upper Badenian dataset are around Moravská Nová Ves village and, then, trending southwest from it. These wells are located mostly on a tailing edge or a high-temperature zone, and are the only ones with TFR values 0.5 or 0.75. The TDS content varies from spot to spot. Places with the highest amount of inflow reach just the intermediate values, and never exceed 11,500 ppm. The Sarmatian dataset is limited, with generally lower temperatures and containing only a few wells with higher inflow values. The highest inflow was measured close to Dolní Bojanovice village. Its TFR is the only one to reach 0.75. The TDS content of all wells with higher amount of inflowing fluids tends to be among the lower, but mostly populated range of 7,800-9,800 ppm.

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