ISTerre seminar

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Thermo-Chemo-Mechanical Coupled Processes: Implications for Subsurface Energy Engineering

Tuesday 18 March 2025 - 14h00

Nicolas Espinoza - The University of Texas at Austin
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Abstract: Changes in mechanical support and pore pressure can manifest as ground surface displacements or induced seismicity in subsurface energy engineering projects. The magnitude of such displacements depends on changes of effective stress and the mechanical properties of the formations involved. Likewise, changes in temperature or strain/stress caused by chemical processes can induce subsurface and surface displacements including fracturing, compaction and swelling. However, these latter processes are much less understood and/or accurately quantified in subsurface engineering processes. This presentation shows examples of rock alteration caused primarily by thermal and chemical processes including thermal strains, adsorption-induced deformation, and mineral dissolution/conversion and crystallization on applications including geological carbon storage and mineralization, geothermal energy, unconventional gas, and geologic hydrogen.

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Organizing team : Mécanique des failles

Salle Dolomieu, Maison des Géosciences, 38400 Saint Martin d'Hères

Informations de visio :

https://univ-grenoble-alpes-fr.zoom.us/j/92147707024?pwd=gmbdzAVWdzoakJ9l1bhr8lpBnLOitB.1