Numerical Simulation of Core-Scale Methane Hydrate Dissociation Flow and Heat Transfer in Porous Media

摘要

Methane Hydrate is one of the most promising future energy resources for humankind. Due to the vase existence and great potential, more and more attention has been paid to its extraction, transportation and utilizations. In this study a core-scale numerical model is established for the complex multi-phase dissociation flows inside porous core. The current numerical model is focused on the depressurization method and thermal boundary effects on the dissociation flows. The dissociation front movement and water-ice equilibrium are also analyzed. It is found that the ice forming and thermal supply are both important for smooth gas extraction.