Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media

Abstract Underground hydrogen storage (UHS) in initially brine-saturated deep porous rocks is a promising large-scale energy storage technology, due to hydrogen’s high specific energy capacity and the high volumetric capacity of aquifers. Appropriate selection of a feasible and safe storage site vit...

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Autores principales:	Leila Hashemi, Martin Blunt, Hadi Hajibeygi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/710e861737e2425993f050c5ee600604
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spelling	oai:doaj.org-article:710e861737e2425993f050c5ee6006042021-12-02T15:51:11ZPore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media10.1038/s41598-021-87490-72045-2322https://doaj.org/article/710e861737e2425993f050c5ee6006042021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87490-7https://doaj.org/toc/2045-2322Abstract Underground hydrogen storage (UHS) in initially brine-saturated deep porous rocks is a promising large-scale energy storage technology, due to hydrogen’s high specific energy capacity and the high volumetric capacity of aquifers. Appropriate selection of a feasible and safe storage site vitally depends on understanding hydrogen transport characteristics in the subsurface. Unfortunately there exist no robust experimental analyses in the literature to properly characterise this complex process. As such, in this work, we present a systematic pore-scale modelling study to quantify the crucial reservoir-scale functions of relative permeability and capillary pressure and their dependencies on fluid and reservoir rock conditions. To conduct a conclusive study, in the absence of sufficient experimental data, a rigorous sensitivity analysis has been performed to quantify the impacts of uncertain fluid and rock properties on these upscaled functions. The parameters are varied around a base-case, which is obtained through matching to the existing experimental study. Moreover, cyclic hysteretic multiphase flow is also studied, which is a relevant aspect for cyclic hydrogen-brine energy storage projects. The present study applies pore-scale analysis to predict the flow of hydrogen in storage formations, and to quantify the sensitivity to the micro-scale characteristics of contact angle (i.e., wettability) and porous rock structure.Leila HashemiMartin BluntHadi HajibeygiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Leila Hashemi Martin Blunt Hadi Hajibeygi Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
description	Abstract Underground hydrogen storage (UHS) in initially brine-saturated deep porous rocks is a promising large-scale energy storage technology, due to hydrogen’s high specific energy capacity and the high volumetric capacity of aquifers. Appropriate selection of a feasible and safe storage site vitally depends on understanding hydrogen transport characteristics in the subsurface. Unfortunately there exist no robust experimental analyses in the literature to properly characterise this complex process. As such, in this work, we present a systematic pore-scale modelling study to quantify the crucial reservoir-scale functions of relative permeability and capillary pressure and their dependencies on fluid and reservoir rock conditions. To conduct a conclusive study, in the absence of sufficient experimental data, a rigorous sensitivity analysis has been performed to quantify the impacts of uncertain fluid and rock properties on these upscaled functions. The parameters are varied around a base-case, which is obtained through matching to the existing experimental study. Moreover, cyclic hysteretic multiphase flow is also studied, which is a relevant aspect for cyclic hydrogen-brine energy storage projects. The present study applies pore-scale analysis to predict the flow of hydrogen in storage formations, and to quantify the sensitivity to the micro-scale characteristics of contact angle (i.e., wettability) and porous rock structure.
format	article
author	Leila Hashemi Martin Blunt Hadi Hajibeygi
author_facet	Leila Hashemi Martin Blunt Hadi Hajibeygi
author_sort	Leila Hashemi
title	Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
title_short	Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
title_full	Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
title_fullStr	Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
title_full_unstemmed	Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
title_sort	pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/710e861737e2425993f050c5ee600604
work_keys_str_mv	AT leilahashemi porescalemodellingandsensitivityanalysesofhydrogenbrinemultiphaseflowingeologicalporousmedia AT martinblunt porescalemodellingandsensitivityanalysesofhydrogenbrinemultiphaseflowingeologicalporousmedia AT hadihajibeygi porescalemodellingandsensitivityanalysesofhydrogenbrinemultiphaseflowingeologicalporousmedia
_version_	1718385638826311680

Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media

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