eprintid: 2032 rev_number: 11 eprint_status: archive userid: 2 dir: disk0/00/00/20/32 datestamp: 2018-02-27 14:21:34 lastmod: 2018-03-28 13:01:20 status_changed: 2018-02-27 14:21:34 type: article metadata_visibility: show creators_name: Magnenet, Vincent creators_name: Fond, Christophe creators_name: Genter, Albert creators_name: Schmittbuhl, Jean corp_creators: ICube Laboratory, UMR, Illkirch, France corp_creators: ICube Laboratory, UMR, Illkirch, France corp_creators: GEIE EMC, Kutzenhausen, France corp_creators: EOST, Strasbourg, France title: Two-dimensional THM modelling of the large scale natural hydrothermal circulation at Soultz-sous-Forêts subjects: MP4 subjects: RF1 subjects: SG divisions: EPOS-IP full_text_status: none keywords: Geothermal reservoir, Finite element method, Thermo-hydro-mechanical model, Natural convection abstract: Background A two-dimensional numerical model is developed for the Soultz-sous-Forêts reservoir from an idealized cross-section containing six homogeneous horizontal layers. The considered constitutive equations are those of homogenized saturated porous media involving Thermo-Hydro-Mechanical (THM) couplings, and most of materials properties (for brine and rocks) are taken dependent on temperature and pressure. Methods The constitutive equations are solved in transient regime with the finite element software Code_Aster to reach a stationary state of the reservoir. Results We show that a large scale natural convection is compatible with present boundary conditions if the permeability of the reservoir is of the order of 1.0×10−14m2. Convection cells are of the order of 1.3 km in width and we analyze several vertical profiles and maps of physical properties. Conclusions A stationary convective solution at large scale is highlighted. date: 2014-12 date_type: published publication: Geothermal Energy volume: 2 number: 1 publisher: Springer id_number: doi:10.1186/s40517-014-0017-x issn: 2195-9706 official_url: http://doi.org/10.1186/s40517-014-0017-x access_IS-EPOS: limited software_references: Stress_and_strain_changes owner: Publisher citation: Magnenet, Vincent and Fond, Christophe and Genter, Albert and Schmittbuhl, Jean (2014) Two-dimensional THM modelling of the large scale natural hydrothermal circulation at Soultz-sous-Forêts. Geothermal Energy, 2 (1). DOI: https://doi.org/10.1186/s40517-014-0017-x