Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures
The mechanical properties of methane hydrate are important to the stability of borehole and methane extraction from a methane hydrate reservoir. In this study, a series of triaxial compression tests were carried out on laboratory-formed methane hydrate-ice mixtures with various methane hydrate conte...
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Molecular Diversity Preservation International
2012
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ftmdpi:oai:mdpi.com:/1996-1073/5/2/181/ 2023-08-20T04:07:56+02:00 Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures Yanghui Li Yongchen Song Weiguo Liu Feng Yu 2012-01-30 application/pdf https://doi.org/10.3390/en5020181 EN eng Molecular Diversity Preservation International https://dx.doi.org/10.3390/en5020181 https://creativecommons.org/licenses/by/3.0/ Energies; Volume 5; Issue 2; Pages: 181-192 methane hydrate mechanical properties safe extraction Text 2012 ftmdpi https://doi.org/10.3390/en5020181 2023-07-31T20:28:05Z The mechanical properties of methane hydrate are important to the stability of borehole and methane extraction from a methane hydrate reservoir. In this study, a series of triaxial compression tests were carried out on laboratory-formed methane hydrate-ice mixtures with various methane hydrate contents. Axial loading was conducted at an axial strain rate of 1.33%/min and a constant temperature of −10 °C. The results indicate that: (1) the deformation behavior is strongly affected by confining pressure and methane hydrate content; (2) the failure strength significantly increases with confining pressure when confining pressure is less than 10 MPa, and decreases with methane hydrate content; (3) the cohesion decreases with methane hydrate content, while the internal friction angle increases with methane hydrate content; (4) the strength of ice specimens are higher than that of methane hydrate-ice mixture specimens; Based on the experimental data, the relationship among failure strength, confining pressure and methane hydrate content was obtained, and a modified Mohr-Coulomb criterion considering the influence of methane hydrate content on shear strength was proposed. Text Methane hydrate MDPI Open Access Publishing Energies 5 2 181 192 |
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methane hydrate mechanical properties safe extraction |
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methane hydrate mechanical properties safe extraction Yanghui Li Yongchen Song Weiguo Liu Feng Yu Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
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methane hydrate mechanical properties safe extraction |
description |
The mechanical properties of methane hydrate are important to the stability of borehole and methane extraction from a methane hydrate reservoir. In this study, a series of triaxial compression tests were carried out on laboratory-formed methane hydrate-ice mixtures with various methane hydrate contents. Axial loading was conducted at an axial strain rate of 1.33%/min and a constant temperature of −10 °C. The results indicate that: (1) the deformation behavior is strongly affected by confining pressure and methane hydrate content; (2) the failure strength significantly increases with confining pressure when confining pressure is less than 10 MPa, and decreases with methane hydrate content; (3) the cohesion decreases with methane hydrate content, while the internal friction angle increases with methane hydrate content; (4) the strength of ice specimens are higher than that of methane hydrate-ice mixture specimens; Based on the experimental data, the relationship among failure strength, confining pressure and methane hydrate content was obtained, and a modified Mohr-Coulomb criterion considering the influence of methane hydrate content on shear strength was proposed. |
format |
Text |
author |
Yanghui Li Yongchen Song Weiguo Liu Feng Yu |
author_facet |
Yanghui Li Yongchen Song Weiguo Liu Feng Yu |
author_sort |
Yanghui Li |
title |
Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
title_short |
Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
title_full |
Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
title_fullStr |
Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
title_full_unstemmed |
Experimental Research on the Mechanical Properties of Methane Hydrate-Ice Mixtures |
title_sort |
experimental research on the mechanical properties of methane hydrate-ice mixtures |
publisher |
Molecular Diversity Preservation International |
publishDate |
2012 |
url |
https://doi.org/10.3390/en5020181 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Energies; Volume 5; Issue 2; Pages: 181-192 |
op_relation |
https://dx.doi.org/10.3390/en5020181 |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.3390/en5020181 |
container_title |
Energies |
container_volume |
5 |
container_issue |
2 |
container_start_page |
181 |
op_container_end_page |
192 |
_version_ |
1774719917047676928 |