Characterization and assessment of hydrogen leakage mechanisms in salt caverns

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

Abstract Salt caverns are widely regarded as a suitable option for the underground storage of hydrogen. However, an accurate assessment hydrogen leakage through walls salt into surrounding formations remains crucial. In this work, flow formation is evaluated by assuming that rock consists bundles tortuous nano-capillary tubes. A formulation was then proposed to model in linear and radial domains. The formulations based on newly unified gas valid entire range Knudsen numbers accounts slippage, bulk diffusion, diffusion. finite-difference approximation with iterative procedure used treat nonlinearity solve presented formulations. were validated against experimental data reported literature. results obtained indicated over wide pore radii operating pressures temperatures, slippage regime must be considered. cavern relevant dimensions conditions, cumulative after 30 years cyclic only 0.36% maximum capacity. It also noticed most leaked would back at times when pressure lower than pressure, e.g. during production subsequent idle times. At low very tight rock, diffusion important mechanism transport. high though, viscous became predominant mechanism. presence thin interlayer such mudstone, carbonate, anhydrite body can have significant impact amount leakage. appeared although increasing from 120 135 bar led 11.9% increase capacity, loss increased significantly 0.007% bar. Furthermore, absolute rate natural higher storage, relative relation capacity much lower. compared storage. study help better understanding it comes large-scale

Language: Английский

---

Pore scale modeling on microbial hydrogen consumption and mass transfer of multicomponent gas flow in underground hydrogen storage of depleted reservoir

Energy, Journal Year: 2024, Volume and Issue: 306, P. 132534 - 132534

Published: July 21, 2024

Language: Английский

---

Airtightness evaluation of compressed air energy storage (CAES) salt caverns in bedded rock salt

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 102, P. 114100 - 114100

Published: Oct. 11, 2024

Language: Английский

---

Cavern integrity under cyclic underground hydrogen storage in heterogeneous Brazilian pre-salt formations

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 922 - 933

Published: Nov. 16, 2024

Language: Английский

---

Visualized experiments on the hydrogen transports and bubble ripening mechanism in porous reservoir of underground hydrogen storage

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 105, P. 326 - 344

Published: Jan. 24, 2025

Language: Английский

---

Stability analysis of single-well cylindrical–spherical salt caverns for green hydrogen storage in bedded formations

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 105, P. 845 - 859

Published: Jan. 28, 2025

Language: Английский

---

Evaluating the Potential for Underground Hydrogen Storage (UHS) in Lithuania: A Review of Geological Viability and Storage Integrity

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 1614 - 1614

Published: Feb. 5, 2025

The aim of this study is to review and identify H2 storage suitability in geological reservoirs the Republic Lithuania. Notably, Lithuania can store clean effectively competitively because its wealth resources well-established infrastructure. viability Lithuanian contexts highlighted study. In addition, when it comes injectivity capacity, salt caverns saline aquifers present less a challenge than other kinds medium. possesses sizable subterranean (Cambrian rocks) that be utilized H2. For preliminary assessment, cyclic injection, production simulation performed. A 10-year hydrogen injection recovery Syderiai aquifer demonstrated feasibility UHS, though efficiency was reduced by nearly 50% using single well for both production. suggests separate wells improve efficiency. However, guarantee economic containment security, detailed assessment structures required specifically at pore scale level. volumetric approach estimated combined capacity approximately 898.5 Gg (~11 TWh) Vaskai aquifers, significantly exceeding previous estimates. findings underscore importance data further research on hydrogen-specific factors optimize UHS Addressing technical, geological, environmental challenges through multidisciplinary essential advancing implementation supporting Lithuania’s transition sustainable energy system. makes possible maximize use energy, reduce greenhouse gas emissions, build more resilient Hence, intensive advancements are needed broader applications

Language: Английский

---

Methane Hydrate Formation Kinetics in Varied Sediment of Deep-Sea Cold Seep Environment

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Language: Английский

---

Pore-scale numerical investigation on the capillary trapping of hydrogen in natural sandstone under in-situ wettability condition: Implications for underground hydrogen storage in aquifers

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 113, P. 509 - 522

Published: March 1, 2025

Language: Английский

---

A comprehensive review of hydrogen production and storage methods: fundamentals, advances, and SWOT analysis

Energy Conversion and Management X, Journal Year: 2025, Volume and Issue: unknown, P. 101005 - 101005

Published: April 1, 2025

Language: Английский

---