CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway
Storage capacity is a key aspect when validating potential CO2 sequestration sites. Most CO2 storage projects, for obvious reasons, target conventional aquifers (e.g., saline aquifers, depleted hydrocarbon fields) with good reservoir properties and ample subsurface data. However, non-geological fact...
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ftunivnapoliiris:oai:www.iris.unina.it:11588/820168 2024-09-09T19:23:54+00:00 CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway Senger K. Tveranger J. Braathen A. Olaussen S. Ogata K. Larsen L. Senger, K. Tveranger, J. Braathen, A. Olaussen, S. Ogata, K. Larsen, L. 2015 http://hdl.handle.net/11588/820168 https://doi.org/10.1007/s12665-014-3684-9 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000351453600003 volume:73 issue:8 firstpage:3987 lastpage:4009 numberofpages:23 journal:ENVIRONMENTAL EARTH SCIENCES http://hdl.handle.net/11588/820168 doi:10.1007/s12665-014-3684-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84924955609 Spitsbergen Storage capacity Storage resource estimate Uncertainty Unconventional reservoir Volumetric calculation info:eu-repo/semantics/article 2015 ftunivnapoliiris https://doi.org/10.1007/s12665-014-3684-9 2024-06-17T15:19:34Z Storage capacity is a key aspect when validating potential CO2 sequestration sites. Most CO2 storage projects, for obvious reasons, target conventional aquifers (e.g., saline aquifers, depleted hydrocarbon fields) with good reservoir properties and ample subsurface data. However, non-geological factors, such as proximity to the CO2 source, may require storing CO2 in geologically “less-than-ideal” sites. We here present a first-order CO2 storage resource estimate of such an unconventional storage unit, a naturally fractured, compartmentalized and underpressured siliciclastic aquifer located at 670–1,000 m below Longyearbyen, Arctic Norway. Water injection tests confirm the injectivity of the reservoir. Capacity calculations, based on the US DOE guidelines for CO2 storage resource estimation, were implemented in a stochastic volumetric workflow. All available data were used to specify input parameters and their probability distributions. The areal extent of the compartmentalized reservoir is poorly constrained, encouraging a scenario-based approach. Other high-impact parameters influencing storage resource estimates include CO2 saturation, CO2 density and the storage efficiency factor. The hydrodynamic effects of storing CO2 in a compartmentalized aquifer are accounted for by calculating probable storage efficiency factors (0.04–0.79 %) in a fully closed system. The results are ultimately linked to the chosen scenario, with two orders of magnitude difference between scenarios. The fracture network contributes with up to 2 % to the final volumes. The derived workflow validates CO2 storage sites based on initial feasibility assessments, and may be applied to aid decision making at other unconventional CO2 storage sites with significant data uncertainty. Article in Journal/Newspaper Arctic Longyearbyen Svalbard Spitsbergen IRIS Università degli Studi di Napoli Federico II Arctic Longyearbyen Norway Svalbard Environmental Earth Sciences 73 8 3987 4009 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
Spitsbergen Storage capacity Storage resource estimate Uncertainty Unconventional reservoir Volumetric calculation |
spellingShingle |
Spitsbergen Storage capacity Storage resource estimate Uncertainty Unconventional reservoir Volumetric calculation Senger K. Tveranger J. Braathen A. Olaussen S. Ogata K. Larsen L. CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
topic_facet |
Spitsbergen Storage capacity Storage resource estimate Uncertainty Unconventional reservoir Volumetric calculation |
description |
Storage capacity is a key aspect when validating potential CO2 sequestration sites. Most CO2 storage projects, for obvious reasons, target conventional aquifers (e.g., saline aquifers, depleted hydrocarbon fields) with good reservoir properties and ample subsurface data. However, non-geological factors, such as proximity to the CO2 source, may require storing CO2 in geologically “less-than-ideal” sites. We here present a first-order CO2 storage resource estimate of such an unconventional storage unit, a naturally fractured, compartmentalized and underpressured siliciclastic aquifer located at 670–1,000 m below Longyearbyen, Arctic Norway. Water injection tests confirm the injectivity of the reservoir. Capacity calculations, based on the US DOE guidelines for CO2 storage resource estimation, were implemented in a stochastic volumetric workflow. All available data were used to specify input parameters and their probability distributions. The areal extent of the compartmentalized reservoir is poorly constrained, encouraging a scenario-based approach. Other high-impact parameters influencing storage resource estimates include CO2 saturation, CO2 density and the storage efficiency factor. The hydrodynamic effects of storing CO2 in a compartmentalized aquifer are accounted for by calculating probable storage efficiency factors (0.04–0.79 %) in a fully closed system. The results are ultimately linked to the chosen scenario, with two orders of magnitude difference between scenarios. The fracture network contributes with up to 2 % to the final volumes. The derived workflow validates CO2 storage sites based on initial feasibility assessments, and may be applied to aid decision making at other unconventional CO2 storage sites with significant data uncertainty. |
author2 |
Senger, K. Tveranger, J. Braathen, A. Olaussen, S. Ogata, K. Larsen, L. |
format |
Article in Journal/Newspaper |
author |
Senger K. Tveranger J. Braathen A. Olaussen S. Ogata K. Larsen L. |
author_facet |
Senger K. Tveranger J. Braathen A. Olaussen S. Ogata K. Larsen L. |
author_sort |
Senger K. |
title |
CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
title_short |
CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
title_full |
CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
title_fullStr |
CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
title_full_unstemmed |
CO2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in Svalbard, Arctic Norway |
title_sort |
co2 storage resource estimates in unconventional reservoirs: insights from a pilot-sized storage site in svalbard, arctic norway |
publishDate |
2015 |
url |
http://hdl.handle.net/11588/820168 https://doi.org/10.1007/s12665-014-3684-9 |
geographic |
Arctic Longyearbyen Norway Svalbard |
geographic_facet |
Arctic Longyearbyen Norway Svalbard |
genre |
Arctic Longyearbyen Svalbard Spitsbergen |
genre_facet |
Arctic Longyearbyen Svalbard Spitsbergen |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000351453600003 volume:73 issue:8 firstpage:3987 lastpage:4009 numberofpages:23 journal:ENVIRONMENTAL EARTH SCIENCES http://hdl.handle.net/11588/820168 doi:10.1007/s12665-014-3684-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84924955609 |
op_doi |
https://doi.org/10.1007/s12665-014-3684-9 |
container_title |
Environmental Earth Sciences |
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73 |
container_issue |
8 |
container_start_page |
3987 |
op_container_end_page |
4009 |
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