We present a multiphysics model and numerical solution framework for subsurface methane hydrate systems. The model development focusses on natural gas production through depressurization and thermal stimulation methods. The model considers kinetic hydrate phase change and non-isothermal, multi-phase, multi-component flow in linear-elastically deforming soils, and accounts for the dynamic effects on the mechanical and the fluid-solid interaction properties occurring due to the chemo-hydro-geo-mechanical coupling. We develop numerical solution strategies for this model and validate against several benchmark tests, analytical solutions, and experimental data.
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We present a multiphysics model and numerical solution framework for subsurface methane hydrate systems. The model development focusses on natural gas production through depressurization and thermal stimulation methods. The model considers kinetic hydrate phase change and non-isothermal, multi-phase, multi-component flow in linear-elastically deforming soils, and accounts for the dynamic effects on the mechanical and the fluid-solid interaction properties occurring due to the chemo-hydro-geo-mec...
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