Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations
The injection of supercritical carbon dioxide (CO2) in deep saline aquifers leads to the formation of a CO2 rich phase plume that tends to float over the resident brine. As pressure builds up, CO2 density will increase because of its high compressibility. Current analytical solutions do not account for CO2 compressibility and consider a volumetric injection rate that is uniformly distributed along the whole thickness of the aquifer, which is unrealistic. Furthermore, the slope of the CO2 pressure with respect to the logarithm of distance obtained from these solutions differs from that of numerical solutions. We develop a semianalytical solution for the CO2 plume geometry and fluid pressure evolution, accounting for CO2 compressibility and buoyancy effects in the injection well, so CO2 is not uniformly injected along the aquifer thickness. We formulate the problem in terms of a CO2 potential that facilitates solution in horizontal layers, with which we discretize the aquifer. Capillary pressure is considered at the interface between the CO2 rich phase and the aqueous phase. When a prescribed CO2 mass flow rate is injected, CO2 advances initially through the top portion of the aquifer. As CO2 is being injected, the CO2 plume advances not only laterally, but also vertically downwards. However, the CO2 plume does not necessarily occupy the whole thickness of the aquifer. We found that even in the cases in which the CO2 plume reaches the bottom of the aquifer, most of the injected CO2 enters the aquifer through the layers at the top. Both CO2 plume position and fluid pressure compare well with numerical simulations. This solution permits quick evaluations of the CO2 plume position and fluid pressure distribution when injecting supercritical CO2 in a deep saline aquifer. © 2013 Springer Science+Business Media Dordrecht.
Main Authors: | , , , |
---|---|
Format: | artículo biblioteca |
Language: | English |
Published: |
Kluwer Academic Publishers
2013
|
Online Access: | http://hdl.handle.net/10261/74114 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-idaea-es-10261-74114 |
---|---|
record_format |
koha |
spelling |
dig-idaea-es-10261-741142020-05-25T16:39:23Z Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations Vilarrasa, Víctor Carrera, Jesús Bolster, Diogo Dentz, Marco The injection of supercritical carbon dioxide (CO2) in deep saline aquifers leads to the formation of a CO2 rich phase plume that tends to float over the resident brine. As pressure builds up, CO2 density will increase because of its high compressibility. Current analytical solutions do not account for CO2 compressibility and consider a volumetric injection rate that is uniformly distributed along the whole thickness of the aquifer, which is unrealistic. Furthermore, the slope of the CO2 pressure with respect to the logarithm of distance obtained from these solutions differs from that of numerical solutions. We develop a semianalytical solution for the CO2 plume geometry and fluid pressure evolution, accounting for CO2 compressibility and buoyancy effects in the injection well, so CO2 is not uniformly injected along the aquifer thickness. We formulate the problem in terms of a CO2 potential that facilitates solution in horizontal layers, with which we discretize the aquifer. Capillary pressure is considered at the interface between the CO2 rich phase and the aqueous phase. When a prescribed CO2 mass flow rate is injected, CO2 advances initially through the top portion of the aquifer. As CO2 is being injected, the CO2 plume advances not only laterally, but also vertically downwards. However, the CO2 plume does not necessarily occupy the whole thickness of the aquifer. We found that even in the cases in which the CO2 plume reaches the bottom of the aquifer, most of the injected CO2 enters the aquifer through the layers at the top. Both CO2 plume position and fluid pressure compare well with numerical simulations. This solution permits quick evaluations of the CO2 plume position and fluid pressure distribution when injecting supercritical CO2 in a deep saline aquifer. © 2013 Springer Science+Business Media Dordrecht. This work has been funded by Fundación Ciudad de la Energía (Spanish Government) (www.ciuden.es) and 35 by the European Union through the “European Energy Programme for Recovery” and the Compostilla OXYCFB300 project. We also want to acknowledge the financial support received from the ‘MUSTANG’ (www.co2mustang.eu) and ‘PANACEA’ (www.panacea-co2.org) projects (from the European Community’s Seventh Framework Programme FP7/2007-2013 under grant agreements nº 227286 and nº 282900, respectively). Peer Reviewed 2013-04-11T10:13:12Z 2013-04-11T10:13:12Z 2013 2013-04-11T10:13:12Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1007/s11242-012-0109-7 issn: 0169-3913 Transport in Porous Media 97(1): 43-65 (2013) http://hdl.handle.net/10261/74114 10.1007/s11242-012-0109-7 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/227286 info:eu-repo/grantAgreement/EC/FP7/282900 http://dx.doi.org/10.1007/s11242-012-0109-7 open Kluwer Academic Publishers |
institution |
IDAEA ES |
collection |
DSpace |
country |
España |
countrycode |
ES |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-idaea-es |
tag |
biblioteca |
region |
Europa del Sur |
libraryname |
Biblioteca del IDAEA España |
language |
English |
description |
The injection of supercritical carbon dioxide (CO2) in deep saline aquifers leads to the formation of a CO2 rich phase plume that tends to float over the resident brine. As pressure builds up, CO2 density will increase because of its high compressibility. Current analytical solutions do not account for CO2 compressibility and consider a volumetric injection rate that is uniformly distributed along the whole thickness of the aquifer, which is unrealistic. Furthermore, the slope of the CO2 pressure with respect to the logarithm of distance obtained from these solutions differs from that of numerical solutions. We develop a semianalytical solution for the CO2 plume geometry and fluid pressure evolution, accounting for CO2 compressibility and buoyancy effects in the injection well, so CO2 is not uniformly injected along the aquifer thickness. We formulate the problem in terms of a CO2 potential that facilitates solution in horizontal layers, with which we discretize the aquifer. Capillary pressure is considered at the interface between the CO2 rich phase and the aqueous phase. When a prescribed CO2 mass flow rate is injected, CO2 advances initially through the top portion of the aquifer. As CO2 is being injected, the CO2 plume advances not only laterally, but also vertically downwards. However, the CO2 plume does not necessarily occupy the whole thickness of the aquifer. We found that even in the cases in which the CO2 plume reaches the bottom of the aquifer, most of the injected CO2 enters the aquifer through the layers at the top. Both CO2 plume position and fluid pressure compare well with numerical simulations. This solution permits quick evaluations of the CO2 plume position and fluid pressure distribution when injecting supercritical CO2 in a deep saline aquifer. © 2013 Springer Science+Business Media Dordrecht. |
format |
artículo |
author |
Vilarrasa, Víctor Carrera, Jesús Bolster, Diogo Dentz, Marco |
spellingShingle |
Vilarrasa, Víctor Carrera, Jesús Bolster, Diogo Dentz, Marco Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
author_facet |
Vilarrasa, Víctor Carrera, Jesús Bolster, Diogo Dentz, Marco |
author_sort |
Vilarrasa, Víctor |
title |
Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
title_short |
Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
title_full |
Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
title_fullStr |
Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
title_full_unstemmed |
Semianalytical Solution for CO2 Plume Shape and Pressure Evolution During CO2 Injection in Deep Saline Formations |
title_sort |
semianalytical solution for co2 plume shape and pressure evolution during co2 injection in deep saline formations |
publisher |
Kluwer Academic Publishers |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/74114 |
work_keys_str_mv |
AT vilarrasavictor semianalyticalsolutionforco2plumeshapeandpressureevolutionduringco2injectionindeepsalineformations AT carrerajesus semianalyticalsolutionforco2plumeshapeandpressureevolutionduringco2injectionindeepsalineformations AT bolsterdiogo semianalyticalsolutionforco2plumeshapeandpressureevolutionduringco2injectionindeepsalineformations AT dentzmarco semianalyticalsolutionforco2plumeshapeandpressureevolutionduringco2injectionindeepsalineformations |
_version_ |
1777669238858711040 |