Keyword: «hydrate stability zone»

In this work, the equilibrium conditions of the natural gas hydrate formation in porous media are experimentally studied to determine the boundary of the hydrate stability zone in 2 areas of the Vilyui syneclise. It has been established that the lower boundaries of the stability zone of natural gas hydrates in a moist unsalted porous medium are located at a depth of 1120 m. When the samples are saturated with mineralized water, the boundaries are located 30–40 m higher. The obtained experimental results allow us to conclude that in subpermafrost aquifers of the Vilyui syneclise has favorable conditions for the formation of natural gas hydrates.