Mining, Journal Year: 2025, Volume and Issue: 5(1), P. 12 - 12
Published: Feb. 5, 2025
With the accelerating global transition to clean energy, underground hydrogen storage (UHS) has gained significant attention as a flexible and renewable energy technology. Ontario, Canada, pioneer in transition, offers substantial potential, with its geological conditions of salt, limestone, sandstone providing diverse options for storage. However, transport characteristics different rock media significantly affect feasibility safety projects, warranting in-depth research. This study simulates flow typical digital core models (salt rock, sandstone) from Ontario using improved quartet structure generation set (I-QSGS) lattice Boltzmann method (LBM). The systematically investigates distribution velocity fields, directional characteristics, permeability differences, covering impact hydraulic changes on capacity mesoscopic behavior porous media. results show that salt due dense structure, lowest airtightness, extremely low is minimally affected by pressure differences. microfracture limestone provides uneven pathways, exhibiting moderate fracture-dominated characteristics. Sandstone, higher porosity good connectivity, rate compared other two media, showing local high-velocity preferential paths. Directional analysis reveals exhibit anisotropy, while limestone’s are more uniform. Based these findings, superior sealing ability, demonstrates best performance, also potential under specific conditions, though further optimization validation required. theoretical basis site selection operational parameter valuable insights projects similar settings globally.
Language: Английский