FIELD: oil-and-gas industry.
SUBSTANCE: group of inventions relates to development and accumulation of biogenic gas in anaerobic geological formation containing carbon-bearing material. According to the method of increase of biogenic gas blowdown in anaerobic geological formation with carbon-bearing material the access to this anaerobic formation is provided. The rate of blow down of biogenic gases in this anaerobic formation is increased, for example, by holding of accumulated biogenic gases and their keeping in the anaerobic formation. The flowing of reservoir water into the anaerobic formation is provided after increase of biogenic gas blow down. Flowing of reservoir water comprises the circulation of reservoir water between the anaerobic formation reservoir and carbon-bearing material and back into the reservoir.
EFFECT: improvement of efficiency of biogenic gas production.
23 cl, 6 dwg
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