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Sinking CO(2) in Supercritical Reservoirs

Geologic carbon storage is required for achieving negative CO(2) emissions to deal with the climate crisis. The classical concept of CO(2) storage consists in injecting CO(2) in geological formations at depths greater than 800 m, where CO(2) becomes a dense fluid, minimizing storage volume. Yet CO(2...

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Autores principales: Parisio, Francesco, Vilarrasa, Victor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7780548/
https://www.ncbi.nlm.nih.gov/pubmed/33424049
http://dx.doi.org/10.1029/2020GL090456
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author Parisio, Francesco
Vilarrasa, Victor
author_facet Parisio, Francesco
Vilarrasa, Victor
author_sort Parisio, Francesco
collection PubMed
description Geologic carbon storage is required for achieving negative CO(2) emissions to deal with the climate crisis. The classical concept of CO(2) storage consists in injecting CO(2) in geological formations at depths greater than 800 m, where CO(2) becomes a dense fluid, minimizing storage volume. Yet CO(2) has a density lower than the resident brine and tends to float, challenging the widespread deployment of geologic carbon storage. Here, we propose for the first time to store CO(2) in supercritical reservoirs to reduce the buoyancy‐driven leakage risk. Supercritical reservoirs are found at drilling‐reachable depth in volcanic areas, where high pressure (p > 21.8 MPa) and temperature (T > 374°C) imply CO(2) is denser than water. We estimate that a CO(2) storage capacity in the range of 50–500 Mt yr(−1) could be achieved for every 100 injection wells. Carbon storage in supercritical reservoirs is an appealing alternative to the traditional approach.
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spelling pubmed-77805482021-01-08 Sinking CO(2) in Supercritical Reservoirs Parisio, Francesco Vilarrasa, Victor Geophys Res Lett Research Letters Geologic carbon storage is required for achieving negative CO(2) emissions to deal with the climate crisis. The classical concept of CO(2) storage consists in injecting CO(2) in geological formations at depths greater than 800 m, where CO(2) becomes a dense fluid, minimizing storage volume. Yet CO(2) has a density lower than the resident brine and tends to float, challenging the widespread deployment of geologic carbon storage. Here, we propose for the first time to store CO(2) in supercritical reservoirs to reduce the buoyancy‐driven leakage risk. Supercritical reservoirs are found at drilling‐reachable depth in volcanic areas, where high pressure (p > 21.8 MPa) and temperature (T > 374°C) imply CO(2) is denser than water. We estimate that a CO(2) storage capacity in the range of 50–500 Mt yr(−1) could be achieved for every 100 injection wells. Carbon storage in supercritical reservoirs is an appealing alternative to the traditional approach. John Wiley and Sons Inc. 2020-11-29 2020-12-16 /pmc/articles/PMC7780548/ /pubmed/33424049 http://dx.doi.org/10.1029/2020GL090456 Text en ©2020. The Authors. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Letters
Parisio, Francesco
Vilarrasa, Victor
Sinking CO(2) in Supercritical Reservoirs
title Sinking CO(2) in Supercritical Reservoirs
title_full Sinking CO(2) in Supercritical Reservoirs
title_fullStr Sinking CO(2) in Supercritical Reservoirs
title_full_unstemmed Sinking CO(2) in Supercritical Reservoirs
title_short Sinking CO(2) in Supercritical Reservoirs
title_sort sinking co(2) in supercritical reservoirs
topic Research Letters
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7780548/
https://www.ncbi.nlm.nih.gov/pubmed/33424049
http://dx.doi.org/10.1029/2020GL090456
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