Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus
Natural gas hydrate is an efficient alternative future energy source because huge reserves of methane gas are caged in hydrate-bearing sediments. The research on the deformation of sediments during hydrate dissociation is important for safe hydrate production. In this work, a novel experimental appa...
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ftrepec:oai:RePEc:eee:appene:v:262:y:2020:i:c:s0306261919320847 2024-04-14T08:14:50+00:00 Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus Wang, Yi Kou, Xuan Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu http://www.sciencedirect.com/science/article/pii/S0306261919320847 unknown http://www.sciencedirect.com/science/article/pii/S0306261919320847 article ftrepec 2024-03-19T10:30:10Z Natural gas hydrate is an efficient alternative future energy source because huge reserves of methane gas are caged in hydrate-bearing sediments. The research on the deformation of sediments during hydrate dissociation is important for safe hydrate production. In this work, a novel experimental apparatus was designed and built to investigate sediment deformation and strain evaluation during methane hydrate dissociation by depressurization. Experimental results are compared for methane hydrate dissociation for various hydrate saturations, porosities, and particle sizes of sediments. Experimental results illustrate that gas hydrate dissociation by depressurization experienced three main stages. The phenomenon secondary hydrate formation was found during hydrate dissociation by depressurization, which leads to the decrease of sediment permeability. The strain of the sediment is proportional to the volume of methane gas production. Higher hydrate saturation leads to larger sediment deformation by hydrate decomposition. Higher sediment porosity leads to looser sediment particles and larger sediment deformation during hydrate dissociation by depressurization. Larger sediment particle sizes lead to smaller interface areas between hydrate and sediment particles, and larger sediment deformation during hydrate dissociation by depressurization. Natural gas hydrate; Sediment deformation; Strain; Hydrate dissociation; Depressurization; Article in Journal/Newspaper Methane hydrate RePEc (Research Papers in Economics) |
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Open Polar |
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RePEc (Research Papers in Economics) |
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unknown |
description |
Natural gas hydrate is an efficient alternative future energy source because huge reserves of methane gas are caged in hydrate-bearing sediments. The research on the deformation of sediments during hydrate dissociation is important for safe hydrate production. In this work, a novel experimental apparatus was designed and built to investigate sediment deformation and strain evaluation during methane hydrate dissociation by depressurization. Experimental results are compared for methane hydrate dissociation for various hydrate saturations, porosities, and particle sizes of sediments. Experimental results illustrate that gas hydrate dissociation by depressurization experienced three main stages. The phenomenon secondary hydrate formation was found during hydrate dissociation by depressurization, which leads to the decrease of sediment permeability. The strain of the sediment is proportional to the volume of methane gas production. Higher hydrate saturation leads to larger sediment deformation by hydrate decomposition. Higher sediment porosity leads to looser sediment particles and larger sediment deformation during hydrate dissociation by depressurization. Larger sediment particle sizes lead to smaller interface areas between hydrate and sediment particles, and larger sediment deformation during hydrate dissociation by depressurization. Natural gas hydrate; Sediment deformation; Strain; Hydrate dissociation; Depressurization; |
format |
Article in Journal/Newspaper |
author |
Wang, Yi Kou, Xuan Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu |
spellingShingle |
Wang, Yi Kou, Xuan Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
author_facet |
Wang, Yi Kou, Xuan Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu |
author_sort |
Wang, Yi |
title |
Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
title_short |
Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
title_full |
Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
title_fullStr |
Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
title_full_unstemmed |
Sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
title_sort |
sediment deformation and strain evaluation during methane hydrate dissociation in a novel experimental apparatus |
url |
http://www.sciencedirect.com/science/article/pii/S0306261919320847 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0306261919320847 |
_version_ |
1796313071908552704 |