Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions
Experimental studies on clay sample saturation by methane hydrates proved that clay particles play an important role in the hydrate accumulation and decomposition processes in sediments. Depending on water content, the same clay mineral can serve as inhibitor, neutral component and promoter of hydra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Geosciences |
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| Online Access: | http://www.mdpi.com/2076-3263/9/1/13 |
| _version_ | 1811263246659747840 |
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| author | Vladimir S. Yakushev |
| author_facet | Vladimir S. Yakushev |
| author_sort | Vladimir S. Yakushev |
| collection | DOAJ |
| description | Experimental studies on clay sample saturation by methane hydrates proved that clay particles play an important role in the hydrate accumulation and decomposition processes in sediments. Depending on water content, the same clay mineral can serve as inhibitor, neutral component and promoter of hydrate formation. Wet clay is a good mineral surface for hydrate formation, but clays represent the worst media for hydrate accumulation and existence. Nevertheless, there are many observations of hydrate presence in clay-containing sediments, especially offshore. Experimental modelling of metastable hydrate decomposition in sediment samples recovered from permafrost in “Yamal crater” in the Russian Arctic has shown that metastable hydrates located in frozen, salted clays can generate huge volumes of gas, even with a negligible (tenth and hundredth of a degree) temperature rise. |
| first_indexed | 2024-04-12T19:41:20Z |
| format | Article |
| id | doaj.art-d05b4374dd824ea28addcc6bcfb923f1 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-04-12T19:41:20Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-d05b4374dd824ea28addcc6bcfb923f12022-12-22T03:19:05ZengMDPI AGGeosciences2076-32632018-12-01911310.3390/geosciences9010013geosciences9010013Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic RegionsVladimir S. Yakushev0Department of Gas and Gas Condensate Field Development and Operation, Gubkin Russian State University of Oil and Gas (National Research University), 65, Leninsky Prospekt, 119991 Moscow, RussiaExperimental studies on clay sample saturation by methane hydrates proved that clay particles play an important role in the hydrate accumulation and decomposition processes in sediments. Depending on water content, the same clay mineral can serve as inhibitor, neutral component and promoter of hydrate formation. Wet clay is a good mineral surface for hydrate formation, but clays represent the worst media for hydrate accumulation and existence. Nevertheless, there are many observations of hydrate presence in clay-containing sediments, especially offshore. Experimental modelling of metastable hydrate decomposition in sediment samples recovered from permafrost in “Yamal crater” in the Russian Arctic has shown that metastable hydrates located in frozen, salted clays can generate huge volumes of gas, even with a negligible (tenth and hundredth of a degree) temperature rise.http://www.mdpi.com/2076-3263/9/1/13clays hydrate formationpermafrostrelic gas hydratesgas liberationstemperature change“permafrost pockmarks” |
| spellingShingle | Vladimir S. Yakushev Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions Geosciences clays hydrate formation permafrost relic gas hydrates gas liberations temperature change “permafrost pockmarks” |
| title | Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions |
| title_full | Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions |
| title_fullStr | Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions |
| title_full_unstemmed | Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions |
| title_short | Experimental Modeling of Methane Hydrate Formation and Decomposition in Wet Heavy Clays in Arctic Regions |
| title_sort | experimental modeling of methane hydrate formation and decomposition in wet heavy clays in arctic regions |
| topic | clays hydrate formation permafrost relic gas hydrates gas liberations temperature change “permafrost pockmarks” |
| url | http://www.mdpi.com/2076-3263/9/1/13 |
| work_keys_str_mv | AT vladimirsyakushev experimentalmodelingofmethanehydrateformationanddecompositioninwetheavyclaysinarcticregions |