{"id":484877,"date":"2025-08-11T13:21:07","date_gmt":"2025-08-11T12:21:07","guid":{"rendered":"https:\/\/www.geo-zs.si\/projekt\/geo-opt-uporaba-opticnih-vlaken-za-oceno-ucinkov-podzemnega-prenosa-toplote-in-toka-vode\/"},"modified":"2026-07-24T01:17:44","modified_gmt":"2026-07-24T00:17:44","slug":"geo-opt-uporaba-opticnih-vlaken-za-oceno-ucinkov-podzemnega-prenosa-toplote-in-toka-vode","status":"publish","type":"projekt","link":"https:\/\/www.geo-zs.si\/en\/projekt\/geo-opt-uporaba-opticnih-vlaken-za-oceno-ucinkov-podzemnega-prenosa-toplote-in-toka-vode\/","title":{"rendered":"Geo-OPT - Using optical fibres to assess the effects of underground heat transfer and water flow"},"content":{"rendered":"<p><html><body><\/p>\n<p><strong>Content<\/strong><\/p>\n<p>The main objective of the Geo-OPT project was to transfer knowledge about the use of optical fibres in hydrogeology and geothermal energy from Canada to Slovenia for the thermolithological characterisation of strata and the evaluation of heat and flow transfer effects in the subsurface. This international collaboration and knowledge transfer is an extension of the collaboration within the<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"text-primary underline underline-offset-4\" href=\"https:\/\/www.unesco.org\/en\/iggp\/igcp-projects\/636\"> UNESCO IGCP 636 project Geothermal Resources for the Energy Transition<\/a>.<\/p>\n<\/p>\n<p>Guest researcher Fiona M. Chapman is a PhD student at the INRS &#8211; Institut national de la recherche scientifique, Quebec City, Canada. During her 3-month research stay, she shared her knowledge about the use of DTS optical fibres in hydrogeology and geothermal energy with our young researcher Karlo Borko and the rest of the project team.<\/p>\n<\/p>\n<p>During the Geo-OPT project, we conducted distributed temperature measurements (DTS) in two experimental setups in boreholes with different effects of groundwater flow velocities, which has not been done in Slovenia before. One of them was our newly established geothermal natural laboratory &#8211; a 100 m deep research geoprobe drilled in November 2024 in the Kr\u0161ko Basin with funding from the<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"text-primary underline underline-offset-4\" href=\"https:\/\/www.geo-zs.si\/projekt\/geocool-food-hladno-skladiscenje-hrane-z-rabo-plitve-geotermalne-energije\/\"> MKGP-ARIS CRP project V1-2213 GeoCOOL-FOOD<\/a>. The second one was a borehole in a highly saturated and fissured rock with evident groundwater flow effect in the dolomite. Research papers on the experimental results have been prepared but are yet to be published.<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>Project phases and realization\u00a0<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>We planned and conducted four activities (A) and several results (R):<\/p>\n<p>A1: Setting up the equipment and transfer of existing experience<\/p>\n<p>R1.1.: Equipment is complete and working<\/p>\n<p>R1.2.: Presentation of experience at Geominuta and similar lectures (SGD\/SKIAH, international geothermal summer school)<\/p>\n<p>A2: Field work<\/p>\n<p>R2.1.: Measurements at two different sites (boreholes) with different geological settings<\/p>\n<p>A3: Data processing<\/p>\n<p>A4: Preparation of a joint journal article<\/p>\n<p>R4: Joint journal article submitted for review<\/p>\n<p>In July 2025, the Geo-OPT project was successfully completed.<\/p>\n<ul>\n<li>\n<p><strong>Bibliography<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>BORKO, Karlo, CHAPMAN, Fiona, RMAN, Nina, RAYMOND, Jasmin. Estimating groundwater velocity across multiple porosity regimes with fiber-optic heating tests. V: RMAN, Nina (ur.).\u00a0Coupling and integration of energy piles with other geothermal technologies : COST action CA21156 european network for FOstering Large-scale ImplementAtion of energy GEostructure (FOLIAGE) : The 3rd international summer school in Thermogeology in Slovenia : International geothermal summer school : 30th June-5th July 2025 : book of abstracts of the student conference of the training school. Ljubljana: Geological Survey of Slovenia, 2025. Str. 11. ISBN 978-961-6498-82-1. [COBISS.SI-ID\u00a0<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"text-primary underline underline-offset-4\" href=\"https:\/\/plus.cobiss.net\/cobiss\/si\/sl\/bib\/242589443\">242589443<\/a>]<\/p>\n<p>Borko, K., Chapman, F.M., Raymond, J., Ry\u017cy\u0144ski, G., Rman, N. 2026: Field to laboratory assessment of subsurface thermal conductivity: A geothermal case study in Slovenia. Geothermics, Vol. 141, 103747, ISSN 0375-6505,<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"text-primary underline underline-offset-4\" href=\"https:\/\/doi.org\/10.1016\/j.geothermics.2026.103747\">https:\/\/doi.org\/10.1016\/j.geothermics.2026.103747<\/a>.<\/p>\n<\/p>\n<p><\/body><\/html><\/p>\n","protected":false},"featured_media":939874,"template":"","vrsta":[36],"class_list":["post-484877","projekt","type-projekt","status-publish","has-post-thumbnail","hentry","vrsta-zakljuceni"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Geo-OPT - Uporaba opti\u010dnih vlaken za oceno u\u010dinkov podzemnega prenosa toplote in toka vode - GeoZS<\/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:\/\/www.geo-zs.si\/en\/projekt\/geo-opt-uporaba-opticnih-vlaken-za-oceno-ucinkov-podzemnega-prenosa-toplote-in-toka-vode\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Geo-OPT - Uporaba opti\u010dnih vlaken za oceno u\u010dinkov podzemnega prenosa toplote in toka vode - GeoZS\" \/>\n<meta property=\"og:description\" content=\"Content The main objective of the Geo-OPT project was to transfer knowledge about the use of optical fibres in hydrogeology and geothermal energy from Canada to Slovenia for the thermolithological characterisation of strata and the evaluation of heat and flow transfer effects in the subsurface. 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