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The Effects of Regional Fluid Flow on Deep Temperatures (Hesse, Germany)

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Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
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Faculty of Georesources and Material Engineering, RWTH Aachen, 52056 Aachen, Germany
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Institute of Applied Geosciences, TU Darmstadt, 64287 Darmstadt, Germany
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Darmstadt Graduate School of Energy Science and Engineering, 64287 Darmstadt, Germany
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Hessian Agency for Nature Conservation, Environment and Geology (HLNUG), 65203 Wiesbaden, Germany
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Author to whom correspondence should be addressed.
Energies 2019, 12(11), 2081; https://doi.org/10.3390/en12112081
Received: 6 May 2019 / Revised: 26 May 2019 / Accepted: 27 May 2019 / Published: 31 May 2019
A successful utilization of deep geothermal resources requires accurate predictions about the distribution of reservoir temperature as well as of the hydraulic processes exerting a direct influence on the productivity of geothermal reservoirs. The aim of this study was to investigate and quantify the influence that regional thermo-hydraulic processes have on the geothermal configuration of potential reservoirs in the German Federal State of Hesse. Specifically, we have addressed the question of how the regional thermal and hydraulic configuration influence the local hydro-thermal reservoir conditions. Therefore, a 3D structural model of Hesse was used as a basis for purely hydraulic, purely thermal and coupled 3D thermo-hydraulic simulations of the deep fluid flow and heat transport. As a result of our numerical simulations, Hesse can be differentiated into sub-areas differing in terms of the dominating heat transport process. In a final attempt to quantify the robustness and reliability of the modelling results, the modelling outcomes were analyzed by comparing them to available subsurface temperature, hydraulic and hydrochemical data. View Full-Text
Keywords: thermo-hydraulic processes; thermal field; Upper Rhine Graben; deep fluid flow; Hesse; 3D numerical model; Hessian Depression; Vogelsberg thermo-hydraulic processes; thermal field; Upper Rhine Graben; deep fluid flow; Hesse; 3D numerical model; Hessian Depression; Vogelsberg
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Koltzer, N.; Scheck-Wenderoth, M.; Bott, J.; Cacace, M.; Frick, M.; Sass, I.; Fritsche, J.-G.; Bär, K. The Effects of Regional Fluid Flow on Deep Temperatures (Hesse, Germany). Energies 2019, 12, 2081.

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