REGIMES OF HYDRATE FORMATION IN THE PROCESS OF INJECTION OF CARBON DIOXIDE INTO A POROUS MEDIUM SATURATED WITH METHANE AND WATER

The problem on the formation of the hydrate of carbon dioxide in the process of its injection into a porous medium saturated with methane and water, whose initial temperature does not correspond to the thermodynamic conditions of existence of the carbon-dioxide hydrate, was considered. This problem was solved for the case where the hydrate formation takes place at the front interface not coincident with the boundary of displacement of methane by carbon dioxide. It is shown that, in the case where the initial temperature of the porous medium exceeds the equilibrium temperature of hydrate formation, the carbon-dioxide hydrate can be formed in three regimes. Curves separating these regimes depending on the injection pressure, the initial temperature of the medium, and its permeability have been constructed
   
Author:  M. K. Khasanov
Keywords:  hydrate formation, porous medium, carbon dioxide, solid gas hydrates, methane, water
Page:  864