A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects
The geomechanical behavior of methane hydrate bearing sediments (MHBS) is influenced by many factors, including temperature, fluid pressure, hydrate saturation, stress level, and strain rate. The paper presents a visco-elastoplastic constitutive model for MHBS based on an elastoplastic model that in...
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ftmdpi:oai:mdpi.com:/1996-1073/15/12/4280/ 2023-08-20T04:07:57+02:00 A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects Bohan Zhou Marcelo Sanchez Luciano Oldecop J. Carlos Santamarina 2022-06-10 application/pdf https://doi.org/10.3390/en15124280 EN eng Multidisciplinary Digital Publishing Institute H: Geo-Energy https://dx.doi.org/10.3390/en15124280 https://creativecommons.org/licenses/by/4.0/ Energies; Volume 15; Issue 12; Pages: 4280 methane hydrate bearing sediments geomechanical model high-dilatancy temperature rate effects model validation Text 2022 ftmdpi https://doi.org/10.3390/en15124280 2023-08-01T05:20:38Z The geomechanical behavior of methane hydrate bearing sediments (MHBS) is influenced by many factors, including temperature, fluid pressure, hydrate saturation, stress level, and strain rate. The paper presents a visco-elastoplastic constitutive model for MHBS based on an elastoplastic model that incorporates the effect of hydrate saturation, stress history, and hydrate morphology on hydrate sediment response. The upgraded model is able to account for additional critical features of MHBS behavior, such as, high-dilatancy, temperature, and rate effects. The main components and the mathematical formulation of the new constitutive model are described in detail. The upgraded model is validated using published triaxial tests involving MHBS. The model agrees overly well with the experimental observations and is able to capture the main features associated with the behavior of MHBS. Text Methane hydrate MDPI Open Access Publishing Energies 15 12 4280 |
institution |
Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
methane hydrate bearing sediments geomechanical model high-dilatancy temperature rate effects model validation |
spellingShingle |
methane hydrate bearing sediments geomechanical model high-dilatancy temperature rate effects model validation Bohan Zhou Marcelo Sanchez Luciano Oldecop J. Carlos Santamarina A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
topic_facet |
methane hydrate bearing sediments geomechanical model high-dilatancy temperature rate effects model validation |
description |
The geomechanical behavior of methane hydrate bearing sediments (MHBS) is influenced by many factors, including temperature, fluid pressure, hydrate saturation, stress level, and strain rate. The paper presents a visco-elastoplastic constitutive model for MHBS based on an elastoplastic model that incorporates the effect of hydrate saturation, stress history, and hydrate morphology on hydrate sediment response. The upgraded model is able to account for additional critical features of MHBS behavior, such as, high-dilatancy, temperature, and rate effects. The main components and the mathematical formulation of the new constitutive model are described in detail. The upgraded model is validated using published triaxial tests involving MHBS. The model agrees overly well with the experimental observations and is able to capture the main features associated with the behavior of MHBS. |
format |
Text |
author |
Bohan Zhou Marcelo Sanchez Luciano Oldecop J. Carlos Santamarina |
author_facet |
Bohan Zhou Marcelo Sanchez Luciano Oldecop J. Carlos Santamarina |
author_sort |
Bohan Zhou |
title |
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
title_short |
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
title_full |
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
title_fullStr |
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
title_full_unstemmed |
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects |
title_sort |
geomechanical model for gas hydrate bearing sediments incorporating high dilatancy, temperature, and rate effects |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/en15124280 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Energies; Volume 15; Issue 12; Pages: 4280 |
op_relation |
H: Geo-Energy https://dx.doi.org/10.3390/en15124280 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/en15124280 |
container_title |
Energies |
container_volume |
15 |
container_issue |
12 |
container_start_page |
4280 |
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1774719937744470016 |