Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations
Experience with past offshore platforms in the Beaufort Sea has shown that in some regions, a stable rubble field of ice may surround the platform during the winter months. These rubble fields can influence marine operations, emergency evacuation systems and can reduce ice loads on the platform. Thi...
Published in: | Cold Regions Science and Technology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2015
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Online Access: | https://doi.org/10.1016/j.coldregions.2015.09.016 https://nrc-publications.canada.ca/eng/view/accepted/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/eng/view/object/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/fra/voir/objet/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:21277476 2023-05-15T15:18:32+02:00 Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations Barker, Anne Timco, Garry 2015-10-14 text https://doi.org/10.1016/j.coldregions.2015.09.016 https://nrc-publications.canada.ca/eng/view/accepted/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/eng/view/object/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/fra/voir/objet/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 eng eng Elsevier issn:0165-232X Cold Regions Science and Technology, Volume: 121, Publication date: 2015-10-14, Pages: 66–83 doi:10.1016/j.coldregions.2015.09.016 drilling platforms Beaufort Sea emergency evacuation empirical relationships environmental parameter offshore platforms operations rubble field ice ice-structure interaction nearshore environment offshore engineering offshore structure sea ice Arctic Ocean article 2015 ftnrccanada https://doi.org/10.1016/j.coldregions.2015.09.016 2021-09-01T06:33:14Z Experience with past offshore platforms in the Beaufort Sea has shown that in some regions, a stable rubble field of ice may surround the platform during the winter months. These rubble fields can influence marine operations, emergency evacuation systems and can reduce ice loads on the platform. This paper analyzes the historical rubble information that has been collected pertaining to the nearshore Beaufort Sea and it examines potential empirical relationships between rubble field characteristics and a variety of ice and environmental parameters. Historically, offshore structures in this region were in open water for approximately 100days. During the remaining time, quasi-stable, grounded rubble could be present around a structure for extended periods - for example, on average 65% of the time that there was moving pack ice in the autumn. Rubble fields formed between 76%-87% of the time when a drilling structure was in water depths from 5 to 32m. This review shows that grounded rubble fields in the Beaufort Sea can be extensive with areas up to 1km2 with maximum sail heights up to 14m. The extent and shape of each field is interdependent upon a number of factors, such as water depth, number of days the site is in moving ice, and the size and shape of an island, caisson or a submarine berm. But no one factor could guarantee the formation of grounded rubble. Upper bounds to the size of a rubble field are proposed based upon three separate data sets. The potential presence of rubble to such a great degree indicates that operators should clearly identify the strategies to be used to either manage grounded ice rubble or account for its presence with respect to marine operations and emergency evacuation methods. However, the data also show that rubble fields often don't form, even if conditions seem to be favorable for their formation. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Sea ice National Research Council Canada: NRC Publications Archive Arctic Arctic Ocean Cold Regions Science and Technology 121 66 83 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
drilling platforms Beaufort Sea emergency evacuation empirical relationships environmental parameter offshore platforms operations rubble field ice ice-structure interaction nearshore environment offshore engineering offshore structure sea ice Arctic Ocean |
spellingShingle |
drilling platforms Beaufort Sea emergency evacuation empirical relationships environmental parameter offshore platforms operations rubble field ice ice-structure interaction nearshore environment offshore engineering offshore structure sea ice Arctic Ocean Barker, Anne Timco, Garry Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
topic_facet |
drilling platforms Beaufort Sea emergency evacuation empirical relationships environmental parameter offshore platforms operations rubble field ice ice-structure interaction nearshore environment offshore engineering offshore structure sea ice Arctic Ocean |
description |
Experience with past offshore platforms in the Beaufort Sea has shown that in some regions, a stable rubble field of ice may surround the platform during the winter months. These rubble fields can influence marine operations, emergency evacuation systems and can reduce ice loads on the platform. This paper analyzes the historical rubble information that has been collected pertaining to the nearshore Beaufort Sea and it examines potential empirical relationships between rubble field characteristics and a variety of ice and environmental parameters. Historically, offshore structures in this region were in open water for approximately 100days. During the remaining time, quasi-stable, grounded rubble could be present around a structure for extended periods - for example, on average 65% of the time that there was moving pack ice in the autumn. Rubble fields formed between 76%-87% of the time when a drilling structure was in water depths from 5 to 32m. This review shows that grounded rubble fields in the Beaufort Sea can be extensive with areas up to 1km2 with maximum sail heights up to 14m. The extent and shape of each field is interdependent upon a number of factors, such as water depth, number of days the site is in moving ice, and the size and shape of an island, caisson or a submarine berm. But no one factor could guarantee the formation of grounded rubble. Upper bounds to the size of a rubble field are proposed based upon three separate data sets. The potential presence of rubble to such a great degree indicates that operators should clearly identify the strategies to be used to either manage grounded ice rubble or account for its presence with respect to marine operations and emergency evacuation methods. However, the data also show that rubble fields often don't form, even if conditions seem to be favorable for their formation. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Barker, Anne Timco, Garry |
author_facet |
Barker, Anne Timco, Garry |
author_sort |
Barker, Anne |
title |
Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
title_short |
Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
title_full |
Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
title_fullStr |
Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
title_full_unstemmed |
Beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
title_sort |
beaufort sea rubble fields: characteristics and implications for nearshore petroleum operations |
publisher |
Elsevier |
publishDate |
2015 |
url |
https://doi.org/10.1016/j.coldregions.2015.09.016 https://nrc-publications.canada.ca/eng/view/accepted/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/eng/view/object/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 https://nrc-publications.canada.ca/fra/voir/objet/?id=1840b17e-6f5d-475b-b33b-dc3f8f5abdf1 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Beaufort Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Sea ice |
op_relation |
issn:0165-232X Cold Regions Science and Technology, Volume: 121, Publication date: 2015-10-14, Pages: 66–83 doi:10.1016/j.coldregions.2015.09.016 |
op_doi |
https://doi.org/10.1016/j.coldregions.2015.09.016 |
container_title |
Cold Regions Science and Technology |
container_volume |
121 |
container_start_page |
66 |
op_container_end_page |
83 |
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1766348734316150784 |