A Quick-Look Method for Initial Evaluation of Gas Hydrate Stability below Subaqueous Permafrost

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 i...

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Bibliographic Details
Published in:Geosciences
Main Authors: Umberta Tinivella, Michela Giustiniani, Héctor Marín-Moreno
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2019
Subjects:
modeling
gas hydrate
subaqueous permafrost
Geology
QE1-996.5
permafrost
Online Access:https://doi.org/10.3390/geosciences9080329
https://doaj.org/article/ca879990396e4709b7b147f86ccd5be2
Description
Summary: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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