| Title |
Investigating CO2 and hydrogen flow dynamics and efficiency optimization for underground storage and production: an experimental and simulation-based study |
| Authors |
Verma, Apoorv ; Dangi, Shankar Lal ; Malik, Shruti ; Pal, Mayur |
| DOI |
10.1016/j.egyr.2025.05.014 |
| Full Text |
|
| Is Part of |
Energy reports.. Amsterdam : Elsevier. 2025, vol. 13, p. 5815-5827.. ISSN 2352-4847 |
| Keywords [eng] |
Experimental approach ; Flow behavior ; Optimization scenarios ; Porous media ; Sandbox ; Simulation ; Underground hydrogen storage and production |
| Abstract [eng] |
This study uses an experimental and simulation-based approach to investigate hydrogen flow behavior and efficiency optimization during underground hydrogen storage and production (UHSP). Laboratory-scale sandbox experiments were conducted under low pressure to assess the dynamics of H₂, H2, and CO2 mixtures in porous sandstone media. The sandbox experiments revealed that sandstone formations, with high permeability, are effective for both H₂ and H2 and CO2 mixtures for gas storage, showing minimal leakage when combined with impermeable cap rocks, which were represented by a clay layer in the sandbox experiment. Further, a 2D mechanistic model was developed and simulated using tNavigator to validate the experimental results, simulating gas migration and reproducing the phenomenon seen in the sandbox modeling experiment. Subsequently, a scaleup study was also conducted, where various optimization scenarios were explored to enhance UHSP efficiency, which includes optimization based on injection duration, injection rates, and model heterogeneity. |
| Published |
Amsterdam : Elsevier |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
