FIELD: oil and gas industry.
SUBSTANCE: method involves the following stages: carbon dioxide gas is supplied to deposits of methane hydrates; action of carbon dioxide gas is provided to methane hydrate with methane release and accumulation of carbon dioxide gas in the form of carbon dioxide hydrates; released methane is removed. At that carbon dioxide gas is supplied as carbon dioxide gas in supercritical state under pressure more than 7.4 MPa and stored at temperature more than 31.48°C.
EFFECT: development of methane extraction method from gas hydrates at production rates exceeding prior rates with simultaneous accumulation of carbon dioxide gas in geological formations.
3 cl, 3 dwg
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