The Development of the Temperature Disturbance Zone in the Surrounding of a Salt Cavern Caused by the Leaching Process for Safety Hydrogen Storage

Pająk, Leszek; Lankof, Leszek; Tomaszewska, Barbara; Wojnarowski, Paweł; Janiga, Damian

doi:10.3390/en14040803

Cited by 7 publications

(2 citation statements)

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“…Moreover, microorganism can consume H 2 , which may result in loss of stored H 2 and precipitation in the pore-system due to release of byproducts, including H 2 S and the acids. , Additionally, a deep saline aquifer H 2 storage system can cause the problems of mineral dissolution and high water cut during the withdrawing period of H 2 . Thus, different mechanisms of formation damages can occur due to fines mobilization and migration during hydrogen injection/withdrawal. − Nevertheless, H 2 storage in salt caverns is a proven technology, owing to its inexpensive investment, enhanced sealing properties and minimum gas cushion requirements . However, microorganisms in particular sulfate reducing bacteria (SRB) can develop the risk of H 2 S release as a byproduct in the salt caverns .…”

Section: Introductionmentioning

confidence: 99%

“…41 Thus, different mechanisms of formation damages can occur due to fines mobilization and migration during hydrogen injection/withdrawal. 42−44 Nevertheless, H 2 storage in salt caverns is a proven technology, 45 owing to its inexpensive investment, 46 enhanced sealing properties 47 and minimum gas cushion requirements. 48 However, microorganisms in particular sulfate reducing bacteria (SRB) can develop the risk of H 2 S release as a byproduct in the salt caverns.…”

Section: Introductionmentioning

confidence: 99%

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Toward a Fundamental Understanding of Geological Hydrogen Storage

Aftab

Hassanpouryouzband

Xie

et al. 2022

Ind. Eng. Chem. Res.

142

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Geological H 2 storage plays a central role to enable the successful transition to the renewable H 2 economy and achieve net-zero emission in the atmosphere. Depleted oil and gas reservoirs are already explored with extensive reservoir and operational data. However, residual hydrocarbons can mix with injected H 2 in the reservoirs. Furthermore, low density and high diffusivity of H 2 may establish H 2 leakage from the reservoirs via fault pathways. Interestingly, H 2 can be consumed by microorganisms, which results in pore-network precipitation, plugging, and partial permeability impairment. Therefore, stored H 2 may be lost in the formations if the storage scenario is not planned cautiously. While salt caverns are safe and commercially proven geo-rock for H 2 storage, they have low-storage capacity compared to depleted gas reservoirs. Moreover, salt structures (e.g., domel, bedded) and microorganisms activities in the salt cavern are limiting factors, which can influence the storage process. Accordingly, we discuss challenges and future perspectives of hydrogen storage in different geological settings. We also highlight geographical limitations with diverse microbial communities and theoretical understanding of abiotic transformation (in terms of rock's minerals, i.e., mica and calcite) for geological H 2 storage. Regarding the fundamental behavior of H 2 in the geological settings, it is less soluble in formation water; therefore, it may achieve less solubility trapping compared to CO 2 and CH 4 . Furthermore, H 2 gas could attain higher capillary entrance pressures in porous media over CH 4 and CO 2 due to higher interfacial tension. Additionally, the low viscosity of H 2 may facilitate its injection and production but H 2 may establish the secondary trapping and viscous fingering. Thus, this review documents a blend of key information for the amendment of subsurface H 2 storage at the industrial scale.

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