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Abstract
Underground hydrogen storage (UHS) in aquifers, salt caverns and depleted hydrocarbon reservoirs allows for the storage of larger volumes of H2 compared to surface storage in vessels. In this work, we investigate the impact of aquifer-related mechanisms and parameters on the performance of UHS in an associated North Sea aquifer using 3D numerical compositional simulations. Simulation results revealed that the aquifer’s permeability heterogeneity has a significant impact on the H2 recovery efficiency where a more homogenous rock would lead to improved H2 productivity. The inclusion of relative permeability hysteresis resulted in a drop in the H2 injectivity and recovery due to H2 discontinuity inside the aquifer which leads to residual H2 during the withdrawal periods. In contrast, the effects of hydrogen solubility and hydrogen diffusion were negligible when studied each in isolation from other factors. Hence, it is essential to properly account for hysteresis and heterogeneity when evaluating UHS in aquifers.
Original language | English |
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Pages (from-to) | 558-574 |
Number of pages | 17 |
Journal | International Journal of Hydrogen Energy |
Volume | 50 |
Issue number | Part D |
Early online date | 13 Dec 2023 |
DOIs | |
Publication status | Published - 2 Jan 2024 |
Bibliographical note
Open Access via the Elsevier AgreementAcknowledgement
The authors gratefully acknowledge the funding support by the Net Zero Technology Centre, UK to accomplish this work under the Hydrogen Innovation Grant Scheme. We also thank the valuable support from the Computer Modelling Group (CMG) Limited in this study.
Keywords
- Underground Hydorgen storage
- Energy Transition
- Energy storage
- Relative permeability hysteresis
- Renewable energy
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Hydrogen Pipeline Transport to Subsurface Storage in Depleted Oil and Gas Reservoirs and Aquifers
Jadhawar, P. (Speaker)
7 Sept 2023Activity: Disseminating Research › Conference