{"id":21242,"date":"2022-11-04T10:24:22","date_gmt":"2022-11-04T09:24:22","guid":{"rendered":"https:\/\/geothermie-schweiz.ch\/?p=21242"},"modified":"2022-11-04T10:26:36","modified_gmt":"2022-11-04T09:26:36","slug":"bohrarbeiten-haben-begonnen","status":"publish","type":"post","link":"https:\/\/geothermie-schweiz.ch\/fr\/bohrarbeiten-haben-begonnen\/","title":{"rendered":"Les travaux de forage ont commenc\u00e9"},"content":{"rendered":"

Le 22 octobre 2022, les travaux de forage pour le projet de stockage g\u00e9ologique Forsthaus d’ewb ont commenc\u00e9. Au cours des derniers mois, le contractant de forage Marriott Drilling (UK) a adapt\u00e9 l’installation de forage en Angleterre aux besoins sp\u00e9cifiques du projet, l’a transport\u00e9e \u00e0 Berne et l’a install\u00e9e. <\/strong>Apr\u00e8s les travaux d’enfouissement jusqu’\u00e0 une profondeur d’environ 200 m\u00e8tres, les travaux g\u00e9ologiques de base commenceront prochainement. Ceux-ci se d\u00e9rouleront jusqu’\u00e0 500 m\u00e8tres au maximum. Les r\u00e9sultats du premier forage sont attendus pour la fin de l’ann\u00e9e.<\/strong><\/p>\n

\"\"<\/a><\/p>\n

Avec le d\u00e9but des travaux de forage, ce projet pilote deviendra r\u00e9alit\u00e9. L’objectif est de stocker dans le sol la chaleur inutilis\u00e9e en \u00e9t\u00e9 et de l’utiliser en hiver. Dans la centrale \u00e9nerg\u00e9tique Forsthaus, Energie Wasser Bern (ewb) exploite une usine d’incin\u00e9ration des ordures m\u00e9nag\u00e8res, une centrale de chauffage au bois et une centrale \u00e0 cycle combin\u00e9 gaz et vapeur pour la production d’\u00e9lectricit\u00e9 et de chaleur. La chaleur est inject\u00e9e dans le r\u00e9seau de chauffage urbain existant d’Energie Wasser Bern. En \u00e9t\u00e9 notamment, la chaleur produite par l’incin\u00e9ration des ordures m\u00e9nag\u00e8res ne peut toutefois pas \u00eatre enti\u00e8rement utilis\u00e9e (chaleur r\u00e9siduelle). En hiver, en revanche, cette chaleur r\u00e9siduelle pourrait \u00eatre utilis\u00e9e sans probl\u00e8me. C’est ici que le projet pilote \u00abstockage g\u00e9ologique\u00bb g\u00e9n\u00e8re une plus value. \"\"<\/a>L’objectif est de stocker la chaleur r\u00e9siduelle inutilis\u00e9e avec une puissance thermique de 3 \u00e0 12 MWth sur le site de Forsthaus, dans les couches de gr\u00e8s de la molasse inf\u00e9rieure d’eau douce, \u00e0 une profondeur comprise entre 200 et 500 m\u00e8tres. L’utilisation saisonni\u00e8re comprend des cycles de chargement pendant les mois d’\u00e9t\u00e9 et des cycles de d\u00e9chargement pendant les mois d’hiver, au cours desquels la chaleur est transf\u00e9r\u00e9e dans le r\u00e9seau de chauffage urbain d’Energie Wasser Bern.<\/p>\n

Comme il s’agit d’un projet pilote, on proc\u00e8de par \u00e9tapes. Il s’agit d’abord de d\u00e9montrer la faisabilit\u00e9 technique avant de raccorder le g\u00e9o-accumulateur saisonnier \u00e0 la centrale \u00e9nerg\u00e9tique et au r\u00e9seau de chauffage urbain et de le mettre en service. Le stockage de chaleur au moyen d’un g\u00e9o-accumulateur permet de r\u00e9aliser un syst\u00e8me efficace avec un encombrement tr\u00e8s r\u00e9duit.<\/p>\n","protected":false},"excerpt":{"rendered":"

Le 22 octobre 2022, les travaux de forage pour le projet de stockage g\u00e9ologique Forsthaus d’ewb ont commenc\u00e9. Au cours des derniers mois, le contractant de forage Marriott Drilling (UK) […]<\/p>\n","protected":false},"author":12,"featured_media":21233,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[265],"tags":[],"class_list":["post-21242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projet-pilote-de-stockage-geologique-de-la-chaleur-geospeicher"],"acf":[],"yoast_head":"\nLes travaux de forage ont commenc\u00e9 - G\u00e9othermie-Suisse<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geothermie-schweiz.ch\/bohrarbeiten-haben-begonnen\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les travaux de forage ont commenc\u00e9 - G\u00e9othermie-Suisse\" \/>\n<meta property=\"og:description\" content=\"Le 22 octobre 2022, les travaux de forage pour le projet de stockage g\u00e9ologique Forsthaus d’ewb ont commenc\u00e9. 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