Geological research and development prospects of compressed air energy storage in non supplementary combustion underground aquifers
Non supplementary combustion underground aquifers compressed air energy storage is the new energy storage method that can use its own heat storage characteristics and regional geological advantages to convert and store excess power,indirectly solves the prob-lem of energy waste and has become a hot topic in the direction of energy storage today.Through the existing successful cases of com-pressed air energy storage and ongoing construction projects,this paper briefly introduced the principle and future development prospects of non supplementary combustion underground aquifers compressed air energy storage,and elaborated on the geological conditions,eco-nomic benefits and safety factors required in the site selection of gas storage.The geological conditions of the reservoir include four as-pects,such as reservoir geological integrity,aquifer permeability,cap tightness and reservoir stability.The economic benefits focus on the costs of selection in engineering geological sites,engineering construction,operation and maintenance,among which the sites selection process can save some project expenses by using existing data.The safety of the project aims to analyze potential safety hazards such as underground engineering blowout accidents during the construction period,as well as cementing and wellbore corrosion during the opera-tion period.Combined with the domestic geographical advantages,urban economy and the distribution of oil and gas fields,targeted re-search on aqueous reservoirs has great practical significance for the development of air compressed energy storage.
compressed air energy storagenew energy storagereservoir geological conditions