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The Upper Jurassic In Southern Germany - A Carbonate Aquifer For Geothermal Exploration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, First EAGE Workshop on Evaluation and Drilling of Carbonate Reservoirs, Oct 2017, Volume 2017, p.1 - 5
Abstract
The Upper Jurassic Malmian in the Southern Germany Molasse Basin developed in the last 15 years to an increasingly intensive used carbonate reservoir for producing geothermal energy. The over 20 geothermal wells (reaching depths of up to 5.000 m TVD) which were investigated by ERDWERK, provide a significant amount of information to optimize the future exploration strategies. (3D-) seismic data, drilling parameters, cuttings, geophysical logs as well as outcrop analogues studies allow for conclusions to be drawn concerning the lithofacies, diagenesis, carstification, geodynamic anomalies and strucural framework of the carbonate reservoir, which are the drivers for the inflow zones and so the overall productivity of the geothermal wells. The study presents results from the structural and facies analysis of the Malmian carbonate reservoir and exhibits the requirements for a decision-making workflow for an optimal exploration.