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Development of a Novel Simulator for Modelling Underground Hydrogen and Gas Mixture Storage

Cai, Zuansi; Zhang, Keni; Guo, Chaobin


Keni Zhang

Chaobin Guo


Underground hydrogen storage can store grid-scale energy for balancing both short-term and long-term inter-seasonal supply and demand. However, there is no numerical simulator which is dedicated to the design and optimisation of such energy storage technology at grid scale. This study develops novel simulation capabilities for GPSFLOW (General Purpose Subsurface Flow Simulator) for modelling grid-scale hydrogen and gas mixture (e.g., H 2-CO 2-CH 4-N 2) storage in cavern, deep saline aquifers and depleted gas fields. The accuracy of GPSFLOW is verified by comparisons against the National Institute of Standard and Technology (NIST) online thermophysical database and reported lab experiments, over a range of temperatures from 20-200 o C and pressure up to 1000 bar. The simulator is benchmarked against an existing model for modelling pure H 2 storage in a synthetic aquifer. Several underground hydrogen storage scenarios including H 2 storage in a synthetic salt cavern, H 2 injection into a CH 4-saturated aquifer experiment, and hydrogen storage in a depleted gas field using CO 2 as a cushion gas are used to test the GPSFLOW's modelling capability. The results show that GPSFLOW offers a robust numerical tool to model underground hydrogen storage and gas mixture at grid scale on multiple parallel computing platforms.

Journal Article Type Article
Acceptance Date Dec 25, 2021
Online Publication Date Jan 15, 2022
Publication Date 2022-02
Deposit Date Dec 30, 2021
Publicly Available Date Jan 16, 2023
Print ISSN 0360-3199
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 47
Issue 14
Pages 8929-8942
Keywords GPSFLOW; Underground H 2 and gas mixture storage; H 2 Thermodynamic model; Numerical simulation
Public URL


Development Of A Novel Simulator For Modelling Underground Hydrogen And Gas Mixture Storage (accepted version) (2.7 Mb)

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