Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage
On Svalbard (Arctic Norway), a pilot-scale research project has been established to investigate the feasibility of storing locally produced CO2 in geological aquifers onshore. Drilling, geophysical and geological data acquisition and water-injection tests confirm the injectivity and storage capacity...
Published in: | Norwegian Journal of Geology |
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2019
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_4489889 2023-05-15T13:05:43+02:00 Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage Lubrano-Lavadera, P. Senger, K. Lecomte, I. Mulrooney, M. Kühn, D. 2019 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889_3/component/file_5000303/4489889.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.17850/njg003 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889_3/component/file_5000303/4489889.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ CC-BY Norwegian Journal of Geology info:eu-repo/semantics/article 2019 ftgfzpotsdam https://doi.org/10.17850/njg003 2022-09-14T05:57:16Z On Svalbard (Arctic Norway), a pilot-scale research project has been established to investigate the feasibility of storing locally produced CO2 in geological aquifers onshore. Drilling, geophysical and geological data acquisition and water-injection tests confirm the injectivity and storage capacity of the naturally fractured and compartmentalised siliciclastic storage unit that is located at c. 670–1000 m depth below the proposed injection site in Adventdalen, Central Spitsbergen. Excellent outcrops of the reservoir-caprock units 15 km from the planned injection site allow for detailed sedimentological and structural studies, and complement 2D seismic data acquired onshore and offshore. In this contribution, we focus on small-scale (metre-scale displacement) normal faults present in both reservoir and caprock to quantify their seismic detectability. We generate synthetic seismic sections of structural models based on high-resolution virtual outcrop models populated with elastic parameters from wireline log data. We address a number of geological scenarios, focusing on CO2 migration within the compartmentalised reservoir, its baffling by normal fault zones and migration of CO2 along a hypothetical fault in the caprock. Our results indicate that while the small-scale faults are unlikely to be imaged on conventional 2D seismic data, the fluid effect associated with CO2 migration along the fault zone will generate considerable reflectivity contrasts and should result in good definition of the extent of the CO2 plume even in such structurally confined settings. Article in Journal/Newspaper Adventdalen Arctic Svalbard Spitsbergen GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic Norway Svalbard Norwegian Journal of Geology |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
On Svalbard (Arctic Norway), a pilot-scale research project has been established to investigate the feasibility of storing locally produced CO2 in geological aquifers onshore. Drilling, geophysical and geological data acquisition and water-injection tests confirm the injectivity and storage capacity of the naturally fractured and compartmentalised siliciclastic storage unit that is located at c. 670–1000 m depth below the proposed injection site in Adventdalen, Central Spitsbergen. Excellent outcrops of the reservoir-caprock units 15 km from the planned injection site allow for detailed sedimentological and structural studies, and complement 2D seismic data acquired onshore and offshore. In this contribution, we focus on small-scale (metre-scale displacement) normal faults present in both reservoir and caprock to quantify their seismic detectability. We generate synthetic seismic sections of structural models based on high-resolution virtual outcrop models populated with elastic parameters from wireline log data. We address a number of geological scenarios, focusing on CO2 migration within the compartmentalised reservoir, its baffling by normal fault zones and migration of CO2 along a hypothetical fault in the caprock. Our results indicate that while the small-scale faults are unlikely to be imaged on conventional 2D seismic data, the fluid effect associated with CO2 migration along the fault zone will generate considerable reflectivity contrasts and should result in good definition of the extent of the CO2 plume even in such structurally confined settings. |
format |
Article in Journal/Newspaper |
author |
Lubrano-Lavadera, P. Senger, K. Lecomte, I. Mulrooney, M. Kühn, D. |
spellingShingle |
Lubrano-Lavadera, P. Senger, K. Lecomte, I. Mulrooney, M. Kühn, D. Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
author_facet |
Lubrano-Lavadera, P. Senger, K. Lecomte, I. Mulrooney, M. Kühn, D. |
author_sort |
Lubrano-Lavadera, P. |
title |
Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
title_short |
Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
title_full |
Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
title_fullStr |
Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
title_full_unstemmed |
Seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in Central Spitsbergen, Svalbard: implications for CO2 storage |
title_sort |
seismic modelling of metre-scale normal faults at a reservoir-cap rock interface in central spitsbergen, svalbard: implications for co2 storage |
publishDate |
2019 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889_3/component/file_5000303/4489889.pdf |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) |
geographic |
Adventdalen Arctic Norway Svalbard |
geographic_facet |
Adventdalen Arctic Norway Svalbard |
genre |
Adventdalen Arctic Svalbard Spitsbergen |
genre_facet |
Adventdalen Arctic Svalbard Spitsbergen |
op_source |
Norwegian Journal of Geology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.17850/njg003 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889 https://gfzpublic.gfz-potsdam.de/pubman/item/item_4489889_3/component/file_5000303/4489889.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17850/njg003 |
container_title |
Norwegian Journal of Geology |
_version_ |
1766392099910975488 |