Impact of Hydrate Dissociation on the Stiffness and Strength of Hydrate Bearing Sands ...
The escalating global energy demand has propelled the exploration of unconventional energy resources, notably natural gas hydrates. These ice-like compounds, abundant in permafrost and marine sediments, harbor vast quantities of methane, a potent energy source. However, conventional methods for reco...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Schulich School of Engineering
2024
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| Online Access: | https://dx.doi.org/10.11575/prism/47766 https://ucalgary.scholaris.ca/handle/1880/120155 |
| Summary: | The escalating global energy demand has propelled the exploration of unconventional energy resources, notably natural gas hydrates. These ice-like compounds, abundant in permafrost and marine sediments, harbor vast quantities of methane, a potent energy source. However, conventional methods for recovering methane gas from natural hydrate bearing sand (HBS) deposits requires dissociation of the hydrate, which has an impact on the mechanical stiffness and strength of the HBS. The safe and efficient production of methane from HBS reservoirs hinges on a comprehensive understanding of the intricate relationship between hydrate dissociation, hence reduction in hydrate saturation, and the mechanical behavior of the host sediments. This thesis investigates the impact of hydrate dissociation on the small-strain stiffness and shear strength of laboratory-synthesized methane hydrate-bearing sands. The excess gas method was employed to form methane hydrates within the sand specimens, simulating the conditions prevalent ... |
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