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The mechanisms governing H2 storage share similarities with those observed in conventional oil and gas systems. Effective subsurface H2 storage is enabled by impermeable caprocks and structural traps, which act as barriers to inhibit vertical migration, allowing accumulations to form over geological timescales (Zivar et al. in International Journal of Hydrogen Energy 46:23,436–23,462, 2021). Prolonged H2 leakage observed in surface features such as “fairy circles” provides evidence for dynamic reservoir processes, where transient H2 reserves are replenished by ongoing geological activity. Research indicates a depth-dependent increase in H2 concentration, suggesting these reserves are responsive to subsurface changes rather than static accumulations ( Hosseini, M., Experimental investigation of the interface and wetting characteristics of rock-H₂-brine systems for H₂ geological storage. 2023.). The complex behavior of natural hydrogen systems, governed by factors such as microbial activity, rock-fluid interactions, and tectonic shifts, underscores the necessity for advanced modelling and targeted exploration to quantify their sustainable potential (Tian in China Geology 5:722–733, 2022).

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Hydrogen Storage and Mechanism

  • 章节

  • 发表日期：

    2026年

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  • Yujie Yuan,
  • Lai-Chang Zhang,
  • Zhuo Feng

摘要

The mechanisms governing H2 storage share similarities with those observed in conventional oil and gas systems. Effective subsurface H2 storage is enabled by impermeable caprocks and structural traps, which act as barriers to inhibit vertical migration, allowing accumulations to form over geological timescales (Zivar et al. in International Journal of Hydrogen Energy 46:23,436–23,462, 2021). Prolonged H2 leakage observed in surface features such as “fairy circles” provides evidence for dynamic reservoir processes, where transient H2 reserves are replenished by ongoing geological activity. Research indicates a depth-dependent increase in H2 concentration, suggesting these reserves are responsive to subsurface changes rather than static accumulations ( Hosseini, M., Experimental investigation of the interface and wetting characteristics of rock-H₂-brine systems for H₂ geological storage. 2023.). The complex behavior of natural hydrogen systems, governed by factors such as microbial activity, rock-fluid interactions, and tectonic shifts, underscores the necessity for advanced modelling and targeted exploration to quantify their sustainable potential (Tian in China Geology 5:722–733, 2022).