[S-CG57] Frontiers in Fluid-Rock Interactions: Linking Surface Processes to Deep Subduction Dynamics

[SCG57-P04] CO₂ reactive fracturing improves permeability retention under effective stress via fracture-confined chemical roughening

*Luis Salala¹, Eko Pramudyo¹, Kevin Ryano¹, Kazumasa Sueyoshi¹, Ryota Tamura¹, Jiajie Wang¹, Kiyotoshi Sakaguchi¹, Sho Ogata², Kazumi Osato³, Takuya Teraoka⁴, Noriaki Watanabe¹ (1. Graduate School of Environmental Studies, Tohoku University, 2. Graduate School of Engineering, Osaka University, 3. Geothermal Energy Research and Development Co., Ltd. (GERD), 4. Japan Organization for Metals and Energy Security (JOGMEC))

Keywords:CO2 fracturing, Stress-resistant permeability, Viscosity-controlled stimulation, Chemical fracture roughening, Subsurface energy systems