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Article

Hydro-Thermal Modeling for Geothermal Energy Extraction from Soultz-sous-Forêts, France

1
Group of Geothermal Science and Technology, Institute of Applied Geosciences, Technische Universität Darmstadt, 64287 Darmstadt, Germany
2
Darmstadt Graduate School of Excellence Energy Science and Engineering, Technische Universität Darmstadt, 64287 Darmstadt, Germany
*
Authors to whom correspondence should be addressed.
Academic Editors: Béatrice A. Ledésert, Ronan L. Hébert, Ghislain Trullenque, Albert Genter, Eléonore Dalmais, Jean Hérisson and Jesus Martinez-Frias
Geosciences 2021, 11(11), 464; https://doi.org/10.3390/geosciences11110464
Received: 23 September 2021 / Revised: 4 November 2021 / Accepted: 7 November 2021 / Published: 9 November 2021
The deep geothermal energy project at Soultz-sous-Forêts is located in the Upper Rhine Graben, France. As part of the Multidisciplinary and multi-contact demonstration of EGS exploration and Exploitation Techniques and potentials (MEET) project, this study aimed to evaluate the possibility of extracting higher amounts of energy from the existing industrial infrastructure. To achieve this objective, the effect of reinjecting fluid at lower temperature than the current fluid injection temperature of 70 °C was modeled and the drop in the production wellhead temperature for 100 years of operation was quantified. Two injection-production rate scenarios were considered and compared for their effect on overall production wellhead temperature. For each scenario, reinjection temperatures of 40, 50, and 60 °C were chosen and compared with the 70 °C injection case. For the lower production rate scenario, the results show that the production wellhead temperature is approximately 1–1.5 °C higher than for the higher production rate scenario after 100 years of operation. In conclusion, no significant thermal breakthrough was observed with the applied flow rates and lowered injection temperatures even after 100 years of operation. View Full-Text
Keywords: Soultz-sous-Forêts; EGS; hydro-thermal modeling Soultz-sous-Forêts; EGS; hydro-thermal modeling
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MDPI and ACS Style

Mahmoodpour, S.; Singh, M.; Turan, A.; Bär, K.; Sass, I. Hydro-Thermal Modeling for Geothermal Energy Extraction from Soultz-sous-Forêts, France. Geosciences 2021, 11, 464. https://doi.org/10.3390/geosciences11110464

AMA Style

Mahmoodpour S, Singh M, Turan A, Bär K, Sass I. Hydro-Thermal Modeling for Geothermal Energy Extraction from Soultz-sous-Forêts, France. Geosciences. 2021; 11(11):464. https://doi.org/10.3390/geosciences11110464

Chicago/Turabian Style

Mahmoodpour, Saeed, Mrityunjay Singh, Aysegul Turan, Kristian Bär, and Ingo Sass. 2021. "Hydro-Thermal Modeling for Geothermal Energy Extraction from Soultz-sous-Forêts, France" Geosciences 11, no. 11: 464. https://doi.org/10.3390/geosciences11110464

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