BCSF-Renass
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Geoven (http://www.geoven.fr) was a geothermal power plant project initially managed by Fonroche Géothermie, later taken over by Arverne (https://arverne.earth/wp-content/uploads/2023/02/Communique_Presse_Georhin_130223.pdf). Located at the Ecoparc Rhénan site in Vendenheim, north of Strasbourg, the project aimed to generate 6 MW of electrical energy and 40 MW of thermal energy. It relied on two deep wells to extract hot water and reinject it at depths exceeding 4,000 meters. The two wells VDH-GT1 and VDH-GT2 had been drilled and some tests had been conducted (5 injectivity and productivity cycles between 02/2018 and 11/2019). A first interruption occured after a first period of seismicity (11/2019 – 01/2020, MLv=3.0 max) at Strasbourg and Vendenheim, to allow a third-party scientific expertise. During this period, the well was deepened of 450m to reach 5000m. New tests were authorized starting 10/2020, but were stopped on 28/10/2020 after a new period of seismicity with quake reaching 3.6MLv (04/12/2020). Authority decided on 07/12/2020 to definitely stop the project. Another earthquake of 3.9 ML (https://www.franceseisme.fr/donnees/intensites/2021/210626_0300/Rapport_BCSF-RENASS_2021R1_EVT210626-DPT67.pdf) occured on 26/06/2021. Authorities set up a committee of experts that delivered a first report (https://www.bas-rhin.gouv.fr/Politiques-publiques/Environnement/Geothermie/Rapport-du-comite-d-experts-cree-en-appui-a-l-administration-sur-la-boucle-geothermique-GEOVEN). The Episode contains several datasets which you can find further down the page in "Links".
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Geoven is a geothermal project initially managed by Fonroche Géothermie, then taken over by Arverne (https://arverne.earth/wp-content/uploads/2023/02/Communique_Presse_Georhin_130223.pdf). This project targets a deep reservoir (around 5km) close to a regional fault. Two wells were drilled, GT1 and GT2. From April to November 2019, several stimulation operations were carried out on the 2 wells GT1 and GT2. A first interruption took place after an initial period of seismicity (11/2019 - 01/2020, MLv=3.0 max) in Strasbourg and Vendenheim. Some of the data have been extrapolated from the Figures presented in the expert report, publicly available here: https://www.bas-rhin.gouv.fr/contenu/telechargement/47764/305601/file/Rapport%20du%20Comit%C3%A9_version%20int%C3%A9grale.pdf The Episode contains several datasets which you can find further down the page in "Links".
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During the interruption, at the end of 2019, the GT2 well was deepened. The tests were authorized in September 2020, and new tests were carried out. These tests were stopped on 28/10/2020 after a new period of seismicity with an event of magnitude 2.8 Mlv on October 28, and 3.6 Mlv on December 4, 2020. Some of the data have been extrapolated from the Figures presented in the expert report, publicly available here: https://www.bas-rhin.gouv.fr/contenu/telechargement/47764/305601/file/Rapport%20du%20Comit%C3%A9_version%20int%C3%A9grale.pdf The Episode contains several datasets which you can find further down the page in "Links".
FormaTerre