METHOD FOR PRODUCING NATURAL GAS FROM HYDROCARBON HYDRATES WHILE SIMULTANEOUSLY STORING CARBON DIOXIDE IN GEOLOGICAL FORMATIONS

摘要

593290 Disclosed is a method for extracting methane from methane hydrates, comprising the following steps: feeding carbon dioxide to the methane hydrate deposits; allowing the carbon dioxide to take effect on the methane hydrate while releasing methane and storing the carbon dioxide as carbon dioxide hydrate; removing the released methane, characterised in that the fed carbon dioxide is supercritical carbon dioxide.