Undrained shear strength of methane hydrate-bearing sand; preliminary laboratory results
Jocelyn L.H. Grozic, Hossein Ghiassian
In the proceedings of: GEO2010 Calgary: 63rd Canadian Geotechnical Conference & 6th Canadian Permafrost ConferenceSession: M1-D
ABSTRACT: Methane hydrates are promising energy resources of natural gas that form at high pressure and low temperature in seafloor sediments and permafrost regions. In hydrate accumulations, understanding of the physical and mechanical properties of hydrate bearing sediments is practically important and also an essential input into accurate numerical simulations. An experimental program investigating the shear strength and volume change characteristics of gas hydrate bearing sand was undertaken using undrained triaxial testing. The results indicate strength of hydrate bearing sand is strongly related to how the hydrate has formed within the sediment.
RÉSUMÉ: Les hydrates de méthane sont des ressources prometteuses d'énergie. Ce sont des gaz naturels qui se forment à hautes pressions et basses températures dans les sédiments sous-marins et les régions de pergélisol. Dans les accumulations d'hydrates, la compréhension des propriétés physiques et mécaniques des sédiments contenant des hydrates est importante en pratique, mais est aussi essentielle pour effectuer des simulations numériques précises. Un programme expérimental s'intéressant à la résistance au cisaillement et aux caractéristiques des changements de volume des sables contenant des hydrates a été réalisé utilisant un test triaxial non-drainé. Les résultats indiquent que la résistance des sables contenant des hydrates est fortement liée à la façon dont les hydrates se sont formés dans les sédiments.
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Jocelyn L.H. Grozic; Hossein Ghiassian (2010) Undrained shear strength of methane hydrate-bearing sand; preliminary laboratory results in GEO2010. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GEO2010_060,
author = Jocelyn L.H. Grozic; Hossein Ghiassian,
title = Undrained shear strength of methane hydrate-bearing sand; preliminary laboratory results ,
year = 2010
}
title = Undrained shear strength of methane hydrate-bearing sand; preliminary laboratory results ,
year = 2010
}