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A Fully Coupled Thermo-Hydro-Mechanical Model For Methane Hydrate Reservoir Simulations
Abstract A fully coupled thermo-hydro-mechanical model is proposed to simulate the complex performances of methane hydrate reservoirs during gas production. The model is based on the fully coupled theories of multiphase fluid flow, heat transfer and deformation in methane hydrate media. With this model, a robust numerical simulator is developed by use of the Galerkin finite element method and the hybrid Eulerian-Lagrangian approach. The simulator can consider the phase change due to hydrate dissociation, the flow of pore water and gas, the heat transfer due to convection and conduction, and the geomechanical phenomena of reservoirs such as compaction, subsidence, casing damage and wellbore stability, etc. Numerical analyses of a methane hydrate reservoir by a depressurizing well are performed by using this simulator. Results reveal some thermal and mechanical characteristics of reservoirs and also indicate the capability of the simulator in designing gas production schemes.
A Fully Coupled Thermo-Hydro-Mechanical Model For Methane Hydrate Reservoir Simulations
Abstract A fully coupled thermo-hydro-mechanical model is proposed to simulate the complex performances of methane hydrate reservoirs during gas production. The model is based on the fully coupled theories of multiphase fluid flow, heat transfer and deformation in methane hydrate media. With this model, a robust numerical simulator is developed by use of the Galerkin finite element method and the hybrid Eulerian-Lagrangian approach. The simulator can consider the phase change due to hydrate dissociation, the flow of pore water and gas, the heat transfer due to convection and conduction, and the geomechanical phenomena of reservoirs such as compaction, subsidence, casing damage and wellbore stability, etc. Numerical analyses of a methane hydrate reservoir by a depressurizing well are performed by using this simulator. Results reveal some thermal and mechanical characteristics of reservoirs and also indicate the capability of the simulator in designing gas production schemes.
A Fully Coupled Thermo-Hydro-Mechanical Model For Methane Hydrate Reservoir Simulations
Fang, Huo-Lang (author)
Advances in Environmental Geotechnics ; 455-461
2010-01-01
7 pages
Article/Chapter (Book)
Electronic Resource
English
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