Characterization and assessment of hydrogen leakage mechanisms in salt caverns

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 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

Язык: Английский

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Concealed morphology construction and stability evaluation of two butted-well horizontal salt caverns gas storage

Energy, Год журнала: 2025, Номер unknown, С. 134499 - 134499

Опубликована: Янв. 1, 2025

Язык: Английский

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Stability evaluation and economic analysis of four-well interconnection salt cavern hydrogen storage-A case study of Huai’an, China

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122417 - 122417

Опубликована: Янв. 1, 2025

Язык: Английский

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The development, frontier and prospect of Large-Scale Underground Energy Storage: A bibliometric review

Journal of Energy Storage, Год журнала: 2024, Номер 103, С. 114293 - 114293

Опубликована: Окт. 31, 2024

Язык: Английский

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Evaluating Fluid/Rock Interactions for Energy Storage in Salt Caverns – Part II: Effect of Hydrogen on Salt Rock Dissolution in Brine

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

Язык: Английский

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Determination of ultimate operating pressure for hydrogen storage in high impurity salt caverns based on gas-structure-interaction model

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 113, С. 685 - 702

Опубликована: Март 1, 2025

Язык: Английский

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Comprehensive evaluation of green hydrogen storage in an ultra-deep horizontal salt cavern

Renewable Energy, Год журнала: 2025, Номер unknown, С. 123051 - 123051

Опубликована: Апрель 1, 2025

Язык: Английский

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Optimizing geological hydrogen storage in bedded salt formations: Assessing permeation and leakage dynamics

Journal of Energy Storage, Год журнала: 2025, Номер 122, С. 116709 - 116709

Опубликована: Апрель 18, 2025

Язык: Английский

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Investigation of the effects of hydrogen injection and withdrawal frequency on stability and tightness of the salt cavern based on a novel coupled thermal-hydro-mechanical model

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 82, С. 1238 - 1251

Опубликована: Авг. 8, 2024

Язык: Английский

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Underground hydrogen storage in salt caverns: Recent advances, modeling approaches, barriers, and future outlook

Journal of Energy Storage, Год журнала: 2024, Номер 107, С. 114951 - 114951

Опубликована: Дек. 12, 2024

Язык: Английский

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