Method for Producing Natural Gas from Hydrocarbon Hydrates While Simultaneously Storing Carbon Dioxide in Geological Formations

摘要

The invention relates to 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 to release methane and store the carbon dioxide as carbon dioxide hydrate; and removing the released methane, characterised in that the fed carbon dioxide is supercritical carbon dioxide.