Multiscale fracture networks and their impact on hydroshearing response in the Canadian Shield (Kuujjuaq, Canada)

• Published in: Geomechanics and Geophysics for Geo-Energy and Geo-Resources
• Main Authors: Miranda, Mafalda, M, Raymond, Jasmin, Dezayes, Chrystel, Wigston, Andrew, Perreault, Serge
• Other Authors: Institut National de la Recherche Scientifique Québec (INRS), Bureau de Recherches Géologiques et Minières (BRGM), Natural Resources Canada (NRCan), Centre d’études collégiales Chibougamau, Institut nordique du québec (INQ)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2023
• Subjects: Geothermal energy; Petrothermal systems; Scanline; Discrete fracture network; Thermo-hydro-mechanical modeling; Nunavik; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Kuujjuaq
• Online Access: https://brgm.hal.science/hal-04155152; https://brgm.hal.science/hal-04155152/document; https://brgm.hal.science/hal-04155152/file/s40948-023-00618-z.pdf; https://doi.org/10.1007/s40948-023-00618-z

International audience Understanding the natural fracture network is essential for geothermal-related investigations. However, the geometrical attributes depend on the scale of observation. Therefore, a multiscale characterization of the fracture network is essential to ensure that heat and flow simulations are based on stochastically generated discrete fracture network models representative of the natural fracture system observed. The objective of this project was to understand the scale effect of fracture data on the performance of a potential enhanced geothermal system in