Keyword: «decompression»

The work is devoted to a mathematical modeling of the decomposition of natural gas hydrate in compacted sand samples under decompression. The 1D mathematical model of the process includes equations of mass and heat balance, equation of gas state, equation of gas flow and empirical dependencies related to the kinetics of hydrate dissociation in a porous medium. An empirical dependence of the equilibrium pressure of natural gas hydrate on temperature in a porous medium is used. As a result of the simulation, the distributions of the main physical parameters in the sample and their evolution over time were obtained.