METHANE HYDRATE DEPOSIT DEVELOPMENT BY THE METHOD OF METHANE REPLACEMENT WITH CARBON DIOXIDE (BASED ON FOREIGN PUBLICATIONS)
Basic properties of methane hydrates and geophysical characteristics of hydrate-saturated sandstones have been described. The means and results of the laboratory investigations on hydrates generation, replacement and dissociation in a porous medium or a free volume have been considered. The results of field operations for natural gas extraction from gas hydrates by methane replacement with carbon dioxide have been described. Environmental problems of the methane hydrate deposit development have been estimated.