| Title | Possibilities of Production Enhancement of Natural Gas and Geothermal Energy Potential Utilization from Carbonate Reservoir Rocks in the Zavod Structure in the Slovak Part of the Vienna Basin |
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| Authors | Vladimir Drozd, Oldrich Vana, Miroslav Pereszlenyi |
| Year | 2005 |
| Conference | World Geothermal Congress |
| Keywords | natural gas, geothermal energy , depressurization, thermal energy potential |
| Abstract | The reservoir rocks of gas in the Zavod structure in the Slovak part of the Vienna Basin are formed by fractured dolomites at a depth of approx. 4200 m underlying sandy-clayey sediments of Neogene. Under specific conditions of fractured reservoir rock relatively large amount of gas is blocked by active water. Depressurization of an aquifer creates conditions for release of this gas, enhancement of gas field recoverability and simultaneously gives possibilities of geothermal energy utilization. Gas fields are in their final stage of production and without use of this possibility their abandonment in short time can be expected. The presented paper is treating these problems. |