A quick-look method for initial evaluation of gas hydrate stability below subaqueous permafrost

Tinivella, Umberta, Giustiniani, Michela and Marín-moreno, Héctor (2019) A quick-look method for initial evaluation of gas hydrate stability below subaqueous permafrost. Geosciences, 9 (8), [329]. (doi:10.3390/geosciences9080329).

Record type: Article

Abstract

Many studies demonstrated the coexistence of subaqueous permafrost and gas hydrate. Subaqueous permafrost could be a factor affecting the formation/dissociation of gas hydrate. Here, we propose a simple empirical approach that allows estimating the steady-state conditions for gas hydrate stability in the presence of subaqueous permafrost. This approach was derived for pressure, temperature, and salinity conditions typical of subaqueous permafrost in marine (brine) and lacustrine (freshwater) environments.

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Accepted/In Press date: 23 July 2019

Published date: 26 July 2019

Additional Information: Funding Information: Funding: This research was partially supported by (I) the Italian Ministry of Education, Universities and Research (Decreto MIUR No. 631 dd. 8 August 2016) under the extraordinary contribution for Italian participation in activities related to the international infrastructure PRACE—The Partnership for Advanced Computing in Europe (www.prace‐ri.eu) and (2) TALENTS FVG Programme Activity 1‐Incoming Mobility Scheme‐European Social Fund, Operational Programme 2007–2013, Objective 2 Regional Competitiveness and Employment, Axis 5 Transnational cooperation (decision n. 7629 of 26/11/2013). Funding Information: This research was partially supported by (I) the Italian Ministry of Education, Universities and Research (Decreto MIUR No. 631 dd. 8 August 2016) under the extraordinary contribution for Italian participation in activities related to the international infrastructure PRACE—The Partnership for Advanced Computing in Europe (www.prace-ri.eu) and (2) TALENTS FVG Programme Activity 1-Incoming Mobility Scheme-European Social Fund, Operational Programme 2007–2013, Objective 2 Regional Competitiveness and Employment, Axis 5 Transnational cooperation (decision n. 7629 of 26/11/2013).

Keywords: Gas hydrate, Modeling, Subaqueous permafrost