Distinct gas permeability
Fine sandstone shows an order-of-magnitude lower permeability than medium sandstone, while concrete is 4–10 times more permeable, providing key seepage parameters for sealing design of high-pressure gas storage.
Liu, Rentai · Meng, Wang · Jiwei, Xu · Xuekai, Li · Wenxuan, Wu · Xinyi, Gao · Jiang, Ping
Journal of Energy Storage 2025
Steady-state flow rate of fine sandstone is an order of magnitude lower than medium sandstone
Permeability of concrete is approximately 4 to 10 times higher than medium sandstone
Gas porosity increases with increasing gas pressure