dc.contributor.author | Almenningen, Stian | |
dc.contributor.author | Hussain, Arif | |
dc.contributor.author | Betlem, Peter | |
dc.contributor.author | Roy, Srikumar | |
dc.contributor.author | Senger, Kim | |
dc.contributor.author | Ersland, Geir | |
dc.date.accessioned | 2020-03-13T13:26:29Z | |
dc.date.available | 2020-03-13T13:26:29Z | |
dc.date.issued | 2019-10 | |
dc.Published | Almenningen S, Hussain, Betlem P, Roy S, Senger K, Ersland G. Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway. International Journal of Greenhouse Gas Control. 2019;89:1-8 | eng |
dc.identifier.issn | 1750-5836 | en_US |
dc.identifier.issn | 1878-0148 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/21492 | |
dc.description.abstract | 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. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution CC BY-NC-ND | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | eng |
dc.title | Demonstrating the potential of CO2 hydrate self-sealing in Svalbard, Arctic Norway | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2020-01-24T09:04:25Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2019 The Author(s) | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.ijggc.2019.06.010 | |
dc.identifier.cristin | 1722014 | |
dc.source.journal | International Journal of Greenhouse Gas Control | |
dc.relation.project | Norges forskningsråd: 257579 | |