eprintid: 2504 rev_number: 13 eprint_status: archive userid: 6 dir: disk0/00/00/25/04 datestamp: 2026-01-29 10:53:56 lastmod: 2026-01-29 11:07:14 status_changed: 2026-01-29 10:53:56 type: article metadata_visibility: show creators_name: Abreu-Torres, Javier creators_name: Hutka, Gergo creators_name: Blocher, Guido creators_name: Cacace, Mauro creators_name: Magnenet, Vincent creators_name: Schmittbuhl, Jean title: Large-scale reservoir modeling of the Vendenheim geothermal site (France) subjects: RF6 subjects: SG divisions: GEO5 full_text_status: none abstract: During the Vendenheim deep geothermal project (Strasbourg Eurometropole, France), large induced seismic events led to the arrest of the project. Two important features of the induced seismicity were unexpected: the large distance to the wells of a cluster of seismic events (4–5 km) and the occurrence of the largest event Mlv3. 9 at the bottom of the wells, six months after shut-in. To better understand the natural hydro-thermal conditions at the Vendenheim site, we develop within the framework of the DT-GEO project (Horizon Europe) a simplified large-scale model (8 km × 8 km × 6 km) of the area. We aim at performing in-silico experimentation to reproduce the natural hydrothermal state of the geothermal reservoir related to the heat flow (conductive/convective) within the model. We first test our methods by solving 2D and 3D benchmarks related to the convective regime in saturated porous media. Our model is based on the MOOSE/GOLEM framework (finite element approach) and integrate the public regional geological model GEORG that includes major lithologies. We present the coarse-grained simulations of the natural fluid circulation. date: 2025 publication: Advances in Geosciences volume: 65 publisher: EGU pagerange: 117-125 id_number: https://doi.org/10.5194/adgeo-65-117-2025 official_url: https://adgeo.copernicus.org/articles/65/117/2025/ access_IS-EPOS: limited owner: Publisher citation: Abreu-Torres, Javier and Hutka, Gergo and Blocher, Guido and Cacace, Mauro and Magnenet, Vincent and Schmittbuhl, Jean (2025) Large-scale reservoir modeling of the Vendenheim geothermal site (France). Advances in Geosciences, 65. pp. 117-125. DOI: https://doi.org/10.5194/adgeo-65-117-2025