3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France

Abstract Switzerland promotes the energy transition by supporting the development of geothermal energy. We built a 3D basin‐scale fluid flow model of the Geneva Basin, France‐Switzerland, using the open‐source Matlab Reservoir Simulation Toolbox (MRST). The model is calibrated on available well and...

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Main Authors: Marion Alcanié, Marine Collignon, Olav Møyner, Matteo Lupi
Format: Article
Language:English
Published: Wiley 2021-05-01
Series:Geochemistry, Geophysics, Geosystems
Online Access:https://doi.org/10.1029/2020GC009505
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author Marion Alcanié
Marine Collignon
Olav Møyner
Matteo Lupi
author_facet Marion Alcanié
Marine Collignon
Olav Møyner
Matteo Lupi
author_sort Marion Alcanié
collection DOAJ
description Abstract Switzerland promotes the energy transition by supporting the development of geothermal energy. We built a 3D basin‐scale fluid flow model of the Geneva Basin, France‐Switzerland, using the open‐source Matlab Reservoir Simulation Toolbox (MRST). The model is calibrated on available well and active seismic data. The goal of the numerical study is to investigate temperature and pressure distribution at the depth that could be used to identify large‐scale positive thermal anomalies. Previous and ongoing projects have assessed the geothermal potential of the region using static conductive models interpolated from bottom hole temperatures. However, a consistent basin‐scale fluid flow model of the Geneva Basin is still lacking. We perform 14 numerical models, articulated into three complementary studies to investigate how thermal properties, petrophysical parameters, and tectonic features affect fluid flow. We constrain our simulations by implementing a progressive degree of geological and petrophysical realism to study the physical processes driving fluid flow in the Geneva basin. We propose based on the simulation results a conceptual model showing that fluid flow is driven by the down‐welling of meteoric waters that cool down rocks at the edge of the Geneva Basin. In turn, this temperature drop promotes the up‐welling of warmer fluids in the center of the basin where we suggest that exploration for geothermal resources should focus. Finally, the approach presented in this study could be used for the first assessment of geothermal resources in other sedimentary basins.
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spelling doaj.art-77a1b8cd82f645569d90a5f8b852f89e2023-11-03T16:55:31ZengWileyGeochemistry, Geophysics, Geosystems1525-20272021-05-01225n/an/a10.1029/2020GC0095053D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐FranceMarion Alcanié0Marine Collignon1Olav Møyner2Matteo Lupi3Department of Earth Sciences University of Geneva Geneva SwitzerlandDepartment of Earth Sciences University of Geneva Geneva SwitzerlandSINTEF Digital Oslo NorwayDepartment of Earth Sciences University of Geneva Geneva SwitzerlandAbstract Switzerland promotes the energy transition by supporting the development of geothermal energy. We built a 3D basin‐scale fluid flow model of the Geneva Basin, France‐Switzerland, using the open‐source Matlab Reservoir Simulation Toolbox (MRST). The model is calibrated on available well and active seismic data. The goal of the numerical study is to investigate temperature and pressure distribution at the depth that could be used to identify large‐scale positive thermal anomalies. Previous and ongoing projects have assessed the geothermal potential of the region using static conductive models interpolated from bottom hole temperatures. However, a consistent basin‐scale fluid flow model of the Geneva Basin is still lacking. We perform 14 numerical models, articulated into three complementary studies to investigate how thermal properties, petrophysical parameters, and tectonic features affect fluid flow. We constrain our simulations by implementing a progressive degree of geological and petrophysical realism to study the physical processes driving fluid flow in the Geneva basin. We propose based on the simulation results a conceptual model showing that fluid flow is driven by the down‐welling of meteoric waters that cool down rocks at the edge of the Geneva Basin. In turn, this temperature drop promotes the up‐welling of warmer fluids in the center of the basin where we suggest that exploration for geothermal resources should focus. Finally, the approach presented in this study could be used for the first assessment of geothermal resources in other sedimentary basins.https://doi.org/10.1029/2020GC009505
spellingShingle Marion Alcanié
Marine Collignon
Olav Møyner
Matteo Lupi
3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
Geochemistry, Geophysics, Geosystems
title 3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
title_full 3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
title_fullStr 3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
title_full_unstemmed 3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
title_short 3D Basin‐Scale Groundwater Flow Modeling as a Tool for Geothermal Exploration: Application to the Geneva Basin, Switzerland‐France
title_sort 3d basin scale groundwater flow modeling as a tool for geothermal exploration application to the geneva basin switzerland france
url https://doi.org/10.1029/2020GC009505
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AT olavmøyner 3dbasinscalegroundwaterflowmodelingasatoolforgeothermalexplorationapplicationtothegenevabasinswitzerlandfrance
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