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Aftab A, Hassanpouryouzband A, Martin A, Kendrick JE, Thaysen EM, Heinemann N, Utley J, Wilkinson M, Haszeldine RS, Edlmann K. Geochemical Integrity of Wellbore Cements during Geological Hydrogen Storage. Environ Sci Technol Lett 2023; 10:551-556. [PMID: 37455863 PMCID: PMC10339721 DOI: 10.1021/acs.estlett.3c00303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/12/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023]
Abstract
Increasing greenhouse gas emissions have put pressure on global economies to adopt strategies for climate-change mitigation. Large-scale geological hydrogen storage in salt caverns and porous rocks has the potential to achieve sustainable energy storage, contributing to the development of a low-carbon economy. During geological storage, hydrogen is injected and extracted through cemented and cased wells. In this context, well integrity and leakage risk must be assessed through in-depth investigations of the hydrogen-cement-rock physical and geochemical processes. There are significant scientific knowledge gaps pertaining to hydrogen-cement interactions, where chemical reactions among hydrogen, in situ reservoir fluids, and cement could degrade the well cement and put the integrity of the storage system at risk. Results from laboratory batch reaction experiments concerning the influence of hydrogen on cement samples under simulated reservoir conditions of North Sea fields, including temperature, pressure, and salinity, provided valuable insights into the integrity of cement for geological hydrogen storage. This work shows that, under the experimental conditions, hydrogen does not induce geochemical or structural alterations to the tested wellbore cements, a promising finding for secure hydrogen subsurface storage.
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Affiliation(s)
- Adnan Aftab
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
- Curtin
University, Discipline of Petroleum Engineering, 26 Dick Perry Avenue, 6151 Kensington, Australia
| | - Aliakbar Hassanpouryouzband
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
| | - Abby Martin
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
| | - Jackie E. Kendrick
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
- Department
of Earth and Environmental Science, Ludwig
Maximilian University, Theresienstrasse 41, 80333 Munich, Germany
| | - Eike M. Thaysen
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
- Department
of Geosciences, Institute of Environmental
Assessment and Water Research (IDAEA), Severo Ochoa Excellence Center
of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Niklas Heinemann
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
| | - James Utley
- School
of Environmental Sciences, University of
Liverpool, 4 Brownlow Street, Liverpool L69 3GP, United Kingdom
| | - Mark Wilkinson
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
| | - R. Stuart Haszeldine
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
| | - Katriona Edlmann
- School
of Geosciences, University of Edinburgh,
Grant Institute, West Main Road, Edinburgh EH9 3FE, United Kingdom
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