dc.contributor.author | Salomon, Martina Lan | |
dc.contributor.author | Arntsen, Martin | |
dc.contributor.author | Dang, Nga Phuong | |
dc.contributor.author | Maus, Sønke | |
dc.contributor.author | O'Sadnick, Megan | |
dc.contributor.author | Petrich, Christian | |
dc.contributor.author | Schneebeli, Martin | |
dc.contributor.author | Wiese, Mareike | |
dc.date.accessioned | 2020-02-07T10:07:53Z | |
dc.date.available | 2020-02-07T10:07:53Z | |
dc.date.created | 2017-09-28T09:48:29Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions. 2017, . | |
dc.identifier.issn | 0376-6756 | |
dc.identifier.uri | http://hdl.handle.net/11250/2640262 | |
dc.description.abstract | Increasing activities in Arctic waters bare a risk of oil spills under ice-covered conditions and afford sound understanding of the interplay between sea ice and oil. Towards better knowledge, this study focuses on X-ray- micro computed-tomography (μ-CT) investigations of a laboratory oil- in ice experiment. The 3-dimensional distribution of oil in the porous space of 11- 13 cm columnar ice grown in a laboratory was investigated. Two different oil content measurement methods are discussed. (i) The first method quantifies the oil volume fraction based on μ -CT-scan investigations, allowing spatial oil distribution analysis in the porous space of sea ice. Oil inclusions were mapped manually over the acquired CT-scans with a resolution of 18 μm and 25 μm, respectively. Results give higher oil contents for smaller resolutions. Oil migration of 4 cm was observed. (ii) The second method quantifies the present oil concentration with fluorescent measurements. CT- scans give in comparison to fluorescent measurements a root mean square error of 1.27 % (18 μm) 0.76 % (25 μm), respectively. Bulk salinity determined from melted samples is compared with salinity estimated from μ –CT data. | |
dc.language.iso | eng | |
dc.subject | Sjøis | |
dc.subject | Sea ice | |
dc.subject | Mikrostruktur | |
dc.subject | Microstructure | |
dc.subject | Computertomografi | |
dc.subject | Computed Tomography | |
dc.subject | Olje og gass | |
dc.subject | Oil and Gas | |
dc.title | Experimental and Micro-CT study on the Oil Distribution in laboratory grown Sea Ice | |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.description.version | publishedVersion | |
dc.source.pagenumber | 12 | |
dc.source.journal | Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions | |
dc.identifier.cristin | 1499382 | |
dc.relation.project | Norges forskningsråd: 243812 | |
cristin.unitcode | 6228,0,0,0 | |
cristin.unitname | Northern Research Institute Narvik AS | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |