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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Bibliographic Details
Published in:Energies
Main Authors: Bohan Zhou, Marcelo Sanchez, Luciano Oldecop, J. Carlos Santamarina
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2022
Subjects:
methane hydrate bearing sediments
geomechanical model
high-dilatancy temperature
rate effects
model validation
Technology
T
Methane hydrate
Online Access:https://doi.org/10.3390/en15124280
https://doaj.org/article/ffd4dc30c2d04d009b07cc85bb7900e8
id ftdoajarticles:oai:doaj.org/article:ffd4dc30c2d04d009b07cc85bb7900e8
record_format openpolar
spelling ftdoajarticles:oai:doaj.org/article:ffd4dc30c2d04d009b07cc85bb7900e8 2023-05-15T17:11:46+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 2022-06-01T00:00:00Z https://doi.org/10.3390/en15124280 https://doaj.org/article/ffd4dc30c2d04d009b07cc85bb7900e8 EN eng MDPI AG https://www.mdpi.com/1996-1073/15/12/4280 https://doaj.org/toc/1996-1073 doi:10.3390/en15124280 1996-1073 https://doaj.org/article/ffd4dc30c2d04d009b07cc85bb7900e8 Energies, Vol 15, Iss 4280, p 4280 (2022) methane hydrate bearing sediments geomechanical model high-dilatancy temperature rate effects model validation Technology T article 2022 ftdoajarticles https://doi.org/10.3390/en15124280 2022-12-30T20:02:03Z 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. Article in Journal/Newspaper Methane hydrate Directory of Open Access Journals: DOAJ Articles Energies 15 12 4280
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic methane hydrate bearing sediments
geomechanical model
high-dilatancy temperature
rate effects
model validation
Technology
T
spellingShingle methane hydrate bearing sediments
geomechanical model
high-dilatancy temperature
rate effects
model validation
Technology
T
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
Technology
T
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 Article in Journal/Newspaper
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 MDPI AG
publishDate 2022
url https://doi.org/10.3390/en15124280
https://doaj.org/article/ffd4dc30c2d04d009b07cc85bb7900e8
genre Methane hydrate
genre_facet Methane hydrate
op_source Energies, Vol 15, Iss 4280, p 4280 (2022)
op_relation https://www.mdpi.com/1996-1073/15/12/4280
https://doaj.org/toc/1996-1073
doi:10.3390/en15124280
1996-1073
https://doaj.org/article/ffd4dc30c2d04d009b07cc85bb7900e8
op_doi https://doi.org/10.3390/en15124280
container_title Energies
container_volume 15
container_issue 12
container_start_page 4280
_version_ 1766068524327895040

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