METHOD FOR THE ADDITIONAL DEVELOPMENT OF DEPLETED NATURAL HYDROCARBON DEPOSITS

摘要

The present invention relates to oil-gas industry, specifically - to additional development of depleted natural hydrocarbon deposits. Under the proposed method: the deposit is prepared for additional development; at least one injection well is created and/or used to pump at least one working agent into the deposit for the purpose of obtaining hydrogen, oxygen and methane homologs and further extracting the natural hydrocarbons remaining in the stratum; at least one working agent is injected until the predetermined formation pressure is achieved in the deposit; at least one production well is created and/or used; extraction of formation fluids is started after the specified formation pressure is reached in the deposit; water, hydrocarbons, hydrogen, oxygen and carbon dioxide are recovered from the extracted formation fluids; the extracted water and unreacted carbon dioxide are directed to at least one injection well for reinjection into the deposit. The proposed method is suitable for all types of depleted natural hydrocarbon deposits. It permits: firstly, not only burying carbon dioxide underground, but also utilizing it for production of hydrogen, oxygen and methane homologs in the stratum; secondly, further extracting the oil, gas and condensate remaining in the stratum; thirdly, not only incurring costs, but also generating revenue from the sale of the above-mentioned products.