Geomaterial Dynamics: Mechanical Behavior and Failure Mechanics of Sandstone Reservoirs

Dear Colleagues,

Sandstone reservoirs are one of the most common target formations for oil and gas, geothermal resources, CO₂ sequestration and compressed-air energy storage. Energy extraction from the subsurface and fluid injection for diverse purposes lead to changes in pore pressure, saturation, reservoir temperature and stress state in the reservoir. These changes may further result in possible mechanical failure of the sandstone, e.g., fracture initiation and propagation from grain scale to field scale. It is of significance to accurately predict the mechanical response of the sandstone and corresponding beneficial or detrimental effects on the engineering activities. However, the failure process of the sandstone in the reservoir may be very complex due to the possible involvement of multi-phase porous media flow and multi-physics coupled processes.

This Special Issue aims to contribute to the grain-scale and field-scale understanding of the mechanical response and failure mechanisms of sandstone reservoir during diverse subsurface activities. Relevant experimental, numerical and field studies are all welcome. Topics of interest include, but are not limited to:

• Fracture initiation and propagation;
• Multi-physics coupling processes;
• Grain-scale damage induced by microscale seepage;
• Tests on mechanical properties under in situ conditions;
• Hydraulic fracturing;
• Fluid displacement in sandstone;
• Dynamic failure behavior of sandstone.

Dr. Bin Chen
Dr. Hailiang Jia
Dr. Yongliang Wang
Guest Editors

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• Sandstone reservoir 
• Rock failure 
• Multi-physics coupling 
• Rock microstructure 
• Hydraulic fracturing 
• Fluid displacement