Role of geochemical reactions on caprock integrity during underground hydrogen storage

Zeng, Lingping; Vialle, Stéphanie; Ennis‐King, Jonathan; Esteban, Lionel; Sarmadivaleh, Mohammad; Sarout, Joël; Dautriat, Jérémie; Giwelli, Ausama; Xie, Quan

doi:10.1016/j.est.2023.107414

Cited by 22 publications

(3 citation statements)

References 89 publications

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“…Deformations in storage formation, caprock, and faults have been shown to occur due to the swelling of clay minerals. This will affect the long-term stability and safety of underground storage [152,153]. Additionally, geochemical reactions (dissolution/precipitation of minerals and sorption/desorption of clay minerals) can contribute to the formation of cracks and fractures [154], and the superposition of their effects, particularly within faults, will affect their stability.…”

Section: Safety Of Gas Storage In Aquifersmentioning

confidence: 99%

Underground Gas Storage in Saline Aquifers: Geological Aspects

Uliasz-Misiak,

Misiak

2024

Energies

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Energy, gases, and solids in underground sites are stored in mining excavations, natural caverns, salt caverns, and in the pore spaces of rock formations. Aquifer formations are mainly isolated aquifers with significant spreading, permeability, and thickness, possessing highly mineralized non-potable waters. This study discusses the most important aspects that determine the storage of natural gas, hydrogen, or carbon dioxide in deep aquifers. In particular, the selection and characterization of the structure chosen for underground storage, the storage capacity, and the safety of the process are considered. The choice of underground sites is made on the basis of the following factors and criteria: geological, technical, economic, environmental, social, political, or administrative–legal. The geological and dynamic model of the storage site is then drawn based on the characteristics of the structure. Another important factor in choosing a structure for the storage of natural gas, hydrogen, or carbon dioxide is its capacity. In addition to the type and dimensions of the structure and the petrophysical parameters of the reservoir rock, the storage capacity is influenced by the properties of the stored gases and the operating parameters of the storage facility. Underground gas storage is a process fraught with natural and technical hazards. Therefore, the geological integrity of the structure under consideration should be documented and verified. This article also presents an analysis of the location and the basic parameters of gas storage and carbon dioxide storage facilities currently operating in underground aquifers. To date, there have been no successful attempts to store hydrogen under analogous conditions. This is mainly due to the parameters of this gas, which are associated with high requirements for its storage.

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Section: Safety Of Gas Storage In Aquifersmentioning

confidence: 99%

Underground Gas Storage in Saline Aquifers: Geological Aspects

Uliasz-Misiak,

Misiak

2024

Energies

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“…A rock formation intended for hydrogen storage, as well as the overburden rocks, should not be tectonically involved (no fractures or faults), which may provide migration paths for hydrogen gas towards the surface [15,23,24]. A loss of caprock containment can also occur as a result of physicochemical reactions of hydrogen with brine, oil or reservoir rocks and microbial reactions [25][26][27][28]. Hydrogen can also leak through a caprock as a result of molecular diffusion.…”

Section: Introductionmentioning

confidence: 99%

“…Deformation in the storage formation, the sealing caprock and faults may occur due to swelling of clay minerals [49,50]. This affects the long-term stability and safety of an underground storage site [28,51]. Also, geochemical reactions (dissolution/precipitation of minerals and sorption/desorption of clay minerals) may contribute to the formation of fissures and fractures [52], and the superposition of their effects, particularly within faults, affects their stability.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Storage in Porous Rocks: A Bibliometric Analysis of Research Trends

Uliasz-Misiak,

Misiak,

Lewandowska-Śmierzchalska

2024

Energies

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Currently, there is an increasing number of research studies on underground storage of hydrogen in porous rocks (aquifers and depleted hydrocarbon fields). An important aspect of this process is the efficiency of hydrogen storage, which is defined as the correct operation of a storage facility (the ability to inject and withdraw an appropriate quantity of gas) and the safety of storage, which is influenced by numerous factors, including geological factors. With an increasing number of publications, gathering knowledge and keeping track of scientific progress is becoming increasingly complex. In addition to the technical interdependence of the parameters analysed, there are also interrelationships between scientific publications addressing issues related to underground hydrogen storage in porous rocks. The aim of this paper is to analyse the literature on hydrogen storage efficiency in porous rocks and, on the basis of the analysis, to identify the most important research trends and issues relevant to their implementation. This article presents an analysis of publications indexed in the SCOPUS database. The analysis included publications that contained expressions related to the relevant search phrases in their title, abstract or keywords. The dynamics of changes in the interest of researchers on the problem of hydrogen storage in porous rocks and the distribution of studies by geographical location (countries) are presented. Based on an analysis of the number of citations, the most influential publications were identified. Using the VOSviewer version 1.6.19 software, clusters reflecting research sub-areas were identified based on co-occurrence analysis, such as geological and reservoir aspects, reservoir engineering aspects, hydrogeological aspects and petrophysical aspects. Bibliometric methods have great potential for performing quantitative confirmation of subjectively delineated research fields and/or examining unexplored areas. The literature on underground hydrogen storage in porous rocks has been growing rapidly since at least 2018, with researchers conducting their studies in four major research streams: geological and reservoir aspects, reservoir engineering aspects, hydrogeological aspects and petrophysical aspects.

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