Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen
The Upper Triassic to Middle Jurassic Wilhelmoya Subgroup forms one of the more suitable reservoir units on the Norwegian Arctic archipelago of Svalbard. The target siliciclastic storage unit, which is encountered at approx. 670 m depth at the potential injection site in Adventdalen, central Spitsbe...
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2019
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Online Access: | https://biblio.ugent.be/publication/8599899 http://hdl.handle.net/1854/LU-8599899 https://doi.org/10.17850/njg002 https://biblio.ugent.be/publication/8599899/file/8599905 |
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ftunivgent:oai:archive.ugent.be:8599899 2023-06-11T04:03:02+02:00 Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen Mulrooney, Mark Joseph Larsen, Leif Van Stappen, Jeroen Rismyhr, Bjarte Senger, Kim Braathen, Alvar Olaussen, Snorre Mørk, Mai Britt E Ogata, Kei Cnudde, Veerle 2019 application/pdf https://biblio.ugent.be/publication/8599899 http://hdl.handle.net/1854/LU-8599899 https://doi.org/10.17850/njg002 https://biblio.ugent.be/publication/8599899/file/8599905 eng eng https://biblio.ugent.be/publication/8599899 http://hdl.handle.net/1854/LU-8599899 http://dx.doi.org/10.17850/njg002 https://biblio.ugent.be/publication/8599899/file/8599905 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess NORWEGIAN JOURNAL OF GEOLOGY ISSN: 0029-196X ISSN: 1502-5322 Earth and Environmental Sciences CCS reservoir compartmentalisation Spitsbergen OLD RED SANDSTONE FOLD-THRUST BELT BARENTS SEA KNORRINGFJELLET FORMATION RESERVOIR SANDSTONES DOLERITIC INTRUSIONS IGNEOUS INTRUSIONS CONTINENTAL-MARGIN STRUCTURAL OUTLINE NORDENSKIOLD-LAND journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftunivgent https://doi.org/10.17850/njg002 2023-04-19T22:12:21Z The Upper Triassic to Middle Jurassic Wilhelmoya Subgroup forms one of the more suitable reservoir units on the Norwegian Arctic archipelago of Svalbard. The target siliciclastic storage unit, which is encountered at approx. 670 m depth at the potential injection site in Adventdalen, central Spitsbergen, is a severely under-pressured (at least 35 bar), tight and compartmentalised reservoir with significant contribution of natural fractures to permeability. In this contribution, we characterise the 15-24 m-thick Wilhelmoya Subgroup storage unit using both borehole and outcrop data and present water-injection test results that indicate the presence of fluid-flow barriers and the generation of new, and propagation of pre-existing natural fractures during injection. Whole core samples from drillcores and outcrops were sampled for pore network characterisation and analysed using high-resolution X-ray computed tomography (Micro-CT). We demonstrate that heterogeneities such as structural discontinuities, igneous bodies and lateral facies variations, as examined in well core and equivalent outcrops, will strongly influence fluid flow in the target reservoir, both by steering and baffling fluid migration. Many of these heterogeneities are considered to be subseismic, and their detailed characterisation is important to predict subsurface CO2 storage potential and optimise injection strategy. Article in Journal/Newspaper Adventdalen Arctic Archipelago Arctic Barents Sea Svalbard Wilhelmøya Spitsbergen Ghent University Academic Bibliography Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic Barents Sea Knorringfjellet ENVELOPE(16.128,16.128,78.296,78.296) Svalbard Wilhelmøya ENVELOPE(20.418,20.418,79.062,79.062) Norwegian Journal of Geology |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences CCS reservoir compartmentalisation Spitsbergen OLD RED SANDSTONE FOLD-THRUST BELT BARENTS SEA KNORRINGFJELLET FORMATION RESERVOIR SANDSTONES DOLERITIC INTRUSIONS IGNEOUS INTRUSIONS CONTINENTAL-MARGIN STRUCTURAL OUTLINE NORDENSKIOLD-LAND |
spellingShingle |
Earth and Environmental Sciences CCS reservoir compartmentalisation Spitsbergen OLD RED SANDSTONE FOLD-THRUST BELT BARENTS SEA KNORRINGFJELLET FORMATION RESERVOIR SANDSTONES DOLERITIC INTRUSIONS IGNEOUS INTRUSIONS CONTINENTAL-MARGIN STRUCTURAL OUTLINE NORDENSKIOLD-LAND Mulrooney, Mark Joseph Larsen, Leif Van Stappen, Jeroen Rismyhr, Bjarte Senger, Kim Braathen, Alvar Olaussen, Snorre Mørk, Mai Britt E Ogata, Kei Cnudde, Veerle Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
topic_facet |
Earth and Environmental Sciences CCS reservoir compartmentalisation Spitsbergen OLD RED SANDSTONE FOLD-THRUST BELT BARENTS SEA KNORRINGFJELLET FORMATION RESERVOIR SANDSTONES DOLERITIC INTRUSIONS IGNEOUS INTRUSIONS CONTINENTAL-MARGIN STRUCTURAL OUTLINE NORDENSKIOLD-LAND |
description |
The Upper Triassic to Middle Jurassic Wilhelmoya Subgroup forms one of the more suitable reservoir units on the Norwegian Arctic archipelago of Svalbard. The target siliciclastic storage unit, which is encountered at approx. 670 m depth at the potential injection site in Adventdalen, central Spitsbergen, is a severely under-pressured (at least 35 bar), tight and compartmentalised reservoir with significant contribution of natural fractures to permeability. In this contribution, we characterise the 15-24 m-thick Wilhelmoya Subgroup storage unit using both borehole and outcrop data and present water-injection test results that indicate the presence of fluid-flow barriers and the generation of new, and propagation of pre-existing natural fractures during injection. Whole core samples from drillcores and outcrops were sampled for pore network characterisation and analysed using high-resolution X-ray computed tomography (Micro-CT). We demonstrate that heterogeneities such as structural discontinuities, igneous bodies and lateral facies variations, as examined in well core and equivalent outcrops, will strongly influence fluid flow in the target reservoir, both by steering and baffling fluid migration. Many of these heterogeneities are considered to be subseismic, and their detailed characterisation is important to predict subsurface CO2 storage potential and optimise injection strategy. |
format |
Article in Journal/Newspaper |
author |
Mulrooney, Mark Joseph Larsen, Leif Van Stappen, Jeroen Rismyhr, Bjarte Senger, Kim Braathen, Alvar Olaussen, Snorre Mørk, Mai Britt E Ogata, Kei Cnudde, Veerle |
author_facet |
Mulrooney, Mark Joseph Larsen, Leif Van Stappen, Jeroen Rismyhr, Bjarte Senger, Kim Braathen, Alvar Olaussen, Snorre Mørk, Mai Britt E Ogata, Kei Cnudde, Veerle |
author_sort |
Mulrooney, Mark Joseph |
title |
Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
title_short |
Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
title_full |
Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
title_fullStr |
Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
title_full_unstemmed |
Fluid flow properties of the Wilhelmøya Subgroup, a potential unconventional CO2 storage unit in central Spitsbergen |
title_sort |
fluid flow properties of the wilhelmøya subgroup, a potential unconventional co2 storage unit in central spitsbergen |
publishDate |
2019 |
url |
https://biblio.ugent.be/publication/8599899 http://hdl.handle.net/1854/LU-8599899 https://doi.org/10.17850/njg002 https://biblio.ugent.be/publication/8599899/file/8599905 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(16.128,16.128,78.296,78.296) ENVELOPE(20.418,20.418,79.062,79.062) |
geographic |
Adventdalen Arctic Barents Sea Knorringfjellet Svalbard Wilhelmøya |
geographic_facet |
Adventdalen Arctic Barents Sea Knorringfjellet Svalbard Wilhelmøya |
genre |
Adventdalen Arctic Archipelago Arctic Barents Sea Svalbard Wilhelmøya Spitsbergen |
genre_facet |
Adventdalen Arctic Archipelago Arctic Barents Sea Svalbard Wilhelmøya Spitsbergen |
op_source |
NORWEGIAN JOURNAL OF GEOLOGY ISSN: 0029-196X ISSN: 1502-5322 |
op_relation |
https://biblio.ugent.be/publication/8599899 http://hdl.handle.net/1854/LU-8599899 http://dx.doi.org/10.17850/njg002 https://biblio.ugent.be/publication/8599899/file/8599905 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.17850/njg002 |
container_title |
Norwegian Journal of Geology |
_version_ |
1768390026475864064 |