Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway
Here we report the potential self-sealing properties of CO2 hydrate for the Longyearbyen CO2 Lab’s shallow aquifer in Svalbard, Arctic Norway, through hydrate formation experiments. The experiments were conducted on a 9 cm long core plug of a fluvio-deltaic sandstone of the Barremian Helvetiafjellet...
Published in: | International Journal of Greenhouse Gas Control |
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Online Access: | https://hdl.handle.net/1956/21492 https://doi.org/10.1016/j.ijggc.2019.06.010 |
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ftunivbergen:oai:bora.uib.no:1956/21492 2023-05-15T13:05:41+02:00 Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway Almenningen, Stian Hussain, Arif Betlem, Peter Roy, Srikumar Senger, Kim Ersland, Geir 2020-01-24T09:04:25Z application/pdf https://hdl.handle.net/1956/21492 https://doi.org/10.1016/j.ijggc.2019.06.010 eng eng Elsevier Norges forskningsråd: 257579 urn:issn:1750-5836 urn:issn:1878-0148 https://hdl.handle.net/1956/21492 https://doi.org/10.1016/j.ijggc.2019.06.010 cristin:1722014 Attribution CC BY-NC-ND http://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright 2019 The Author(s) International Journal of Greenhouse Gas Control Peer reviewed Journal article 2020 ftunivbergen https://doi.org/10.1016/j.ijggc.2019.06.010 2023-03-14T17:39:10Z Here we report the potential self-sealing properties of CO2 hydrate for the Longyearbyen CO2 Lab’s shallow aquifer in Svalbard, Arctic Norway, through hydrate formation experiments. The experiments were conducted on a 9 cm long core plug of a fluvio-deltaic sandstone of the Barremian Helvetiafjellet Formation recovered from a fully-cored research well in Adventdalen in Svalbard at a depth of 187 m. CO2 injection into the brine-filled (1.0 wt.% NaCl) core plug was conducted at realistic reservoir conditions; the pore pressure was 20 bar and the temperature was 0.1 °C. Solid CO2 hydrate formed in the core plug after injecting 0.40 pore volumes (frac.) of CO2 and immediately reduced the apparent permeability to zero. A differential pressure across the core plug of 18 bar (200 bar/m) was sustained for 250 h without producing any CO2 from the core plug. This demonstrates the potential of CO2 hydrate formation as a secondary seal in settings with favorable CO2 hydrate formation conditions in or above the reservoir. The results further indicate that the self-sealing nature of CO2 hydrate should be considered while characterizing carbon sequestration reservoirs in both marine and permafrost-affected settings. publishedVersion Article in Journal/Newspaper Adventdalen Arctic Longyearbyen permafrost Svalbard University of Bergen: Bergen Open Research Archive (BORA-UiB) Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Arctic Helvetiafjellet ENVELOPE(16.232,16.232,78.213,78.213) Longyearbyen Norway Svalbard International Journal of Greenhouse Gas Control 89 1 8 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Here we report the potential self-sealing properties of CO2 hydrate for the Longyearbyen CO2 Lab’s shallow aquifer in Svalbard, Arctic Norway, through hydrate formation experiments. The experiments were conducted on a 9 cm long core plug of a fluvio-deltaic sandstone of the Barremian Helvetiafjellet Formation recovered from a fully-cored research well in Adventdalen in Svalbard at a depth of 187 m. CO2 injection into the brine-filled (1.0 wt.% NaCl) core plug was conducted at realistic reservoir conditions; the pore pressure was 20 bar and the temperature was 0.1 °C. Solid CO2 hydrate formed in the core plug after injecting 0.40 pore volumes (frac.) of CO2 and immediately reduced the apparent permeability to zero. A differential pressure across the core plug of 18 bar (200 bar/m) was sustained for 250 h without producing any CO2 from the core plug. This demonstrates the potential of CO2 hydrate formation as a secondary seal in settings with favorable CO2 hydrate formation conditions in or above the reservoir. The results further indicate that the self-sealing nature of CO2 hydrate should be considered while characterizing carbon sequestration reservoirs in both marine and permafrost-affected settings. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Almenningen, Stian Hussain, Arif Betlem, Peter Roy, Srikumar Senger, Kim Ersland, Geir |
spellingShingle |
Almenningen, Stian Hussain, Arif Betlem, Peter Roy, Srikumar Senger, Kim Ersland, Geir Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
author_facet |
Almenningen, Stian Hussain, Arif Betlem, Peter Roy, Srikumar Senger, Kim Ersland, Geir |
author_sort |
Almenningen, Stian |
title |
Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
title_short |
Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
title_full |
Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
title_fullStr |
Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
title_full_unstemmed |
Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway |
title_sort |
demonstrating the potential of co2 hydrate self-sealing in svalbard, arctic norway |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://hdl.handle.net/1956/21492 https://doi.org/10.1016/j.ijggc.2019.06.010 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(16.232,16.232,78.213,78.213) |
geographic |
Adventdalen Arctic Helvetiafjellet Longyearbyen Norway Svalbard |
geographic_facet |
Adventdalen Arctic Helvetiafjellet Longyearbyen Norway Svalbard |
genre |
Adventdalen Arctic Longyearbyen permafrost Svalbard |
genre_facet |
Adventdalen Arctic Longyearbyen permafrost Svalbard |
op_source |
International Journal of Greenhouse Gas Control |
op_relation |
Norges forskningsråd: 257579 urn:issn:1750-5836 urn:issn:1878-0148 https://hdl.handle.net/1956/21492 https://doi.org/10.1016/j.ijggc.2019.06.010 cristin:1722014 |
op_rights |
Attribution CC BY-NC-ND http://creativecommons.org/licenses/by-nc-nd/4.0/ Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1016/j.ijggc.2019.06.010 |
container_title |
International Journal of Greenhouse Gas Control |
container_volume |
89 |
container_start_page |
1 |
op_container_end_page |
8 |
_version_ |
1766391092114096128 |