TY - JOUR
T1 - Hydrogen Wettability of Sandstone Reservoirs: Implications for Hydrogen Geo-Storage
AU - Iglauer, Stefan
AU - Ali, Muhammad
AU - Keshavarz, Alireza
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2021/2/16
Y1 - 2021/2/16
N2 - Hydrogen is currently assessed as a future clean fuel in a hydrogen economy. However, one key problem with implementing a full-scale hydrogen economy is hydrogen storage (as hydrogen is highly compressible and volatile). One solution for this problem is hydrogen geo-storage, where compressed hydrogen is injected into geological formations, and the hydrogen can be withdrawn again at any time. However, there is a serious lack of data for realistic geologic conditions, including for hydrogen-rock wettability, which is proven to determine injectivities, withdrawal rates, storage capacities, and containment security. We thus measured this parameter at various geo-storage conditions. For a realistic storage scenario in a deep sandstone aquifer, we found that the rock (quartz) was weakly water-wet or intermediate-wet. Increasing pressure, temperature, and organic surface concentration increased hydrogen wettability. This study, thus, provides fundamental data and aids in the industrial-scale implementation of a future hydrogen economy.
AB - Hydrogen is currently assessed as a future clean fuel in a hydrogen economy. However, one key problem with implementing a full-scale hydrogen economy is hydrogen storage (as hydrogen is highly compressible and volatile). One solution for this problem is hydrogen geo-storage, where compressed hydrogen is injected into geological formations, and the hydrogen can be withdrawn again at any time. However, there is a serious lack of data for realistic geologic conditions, including for hydrogen-rock wettability, which is proven to determine injectivities, withdrawal rates, storage capacities, and containment security. We thus measured this parameter at various geo-storage conditions. For a realistic storage scenario in a deep sandstone aquifer, we found that the rock (quartz) was weakly water-wet or intermediate-wet. Increasing pressure, temperature, and organic surface concentration increased hydrogen wettability. This study, thus, provides fundamental data and aids in the industrial-scale implementation of a future hydrogen economy.
UR - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL090814
UR - http://www.scopus.com/inward/record.url?scp=85099625665&partnerID=8YFLogxK
U2 - 10.1029/2020GL090814
DO - 10.1029/2020GL090814
M3 - Article
SN - 1944-8007
VL - 48
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 3
ER -