Relative Permeability of Hydrogen and Aqueous Brines in Sandstones and Carbonates at Reservoir Conditions

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Geological hydrogen storage in depleted gas fields represents a new technology to mitigate climate change. It comes with several research gaps, around hydrogen recovery, including the flow behavior of hydrogen gas in porous media. Here, we provide the first-published comprehensive experimental study of unsteady state drainage relative permeability curves with H2-Brine, on two different types of sandstones and a carbonate rock. We investigate the effect of pressure, brine salinity, and rock type on hydrogen flow behavior and compare it to that of CH4 and N2 at high-pressure and high-temperature conditions representative of potential geological storage sites. Finally, we use a history matching method for modeling relative permeability curves using the measured data within the experiments. Our results suggest that nitrogen can be used as a proxy gas for hydrogen to carry out multiphase fluid flow experiments, to provide the fundamental constitutive relationships necessary for large-scale simulations of geological hydrogen storage.
Original languageEnglish
Article numbere2022GL099433
JournalGeophysical Research Letters
Issue number12
Early online date18 Jun 2022
Publication statusPublished - 28 Jun 2022

Keywords / Materials (for Non-textual outputs)

  • geological hydrogen storage
  • hydrogen flow
  • hydrogen recovery
  • hydrogen storage
  • porous media
  • reservoir pressure


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