Development and technology status of energy storage in depleted gas reservoirs

Abstract

Utilizing energy storage in depleted oil and gas reservoirs can improve productivity while reducing power costs and is one of the best ways to achieve synergistic development of "Carbon Peak–Carbon Neutral" and "Underground Resource Utilization". Starting from the development of Compressed Air Energy Storage (CAES) technology, the site selection of CAES in depleted gas and oil reservoirs, the evolution mechanism of reservoir dynamic sealing, and the high-flow CAES and injection technology are summarized. It focuses on analyzing the characteristics, key equipment, reservoir construction, application scenarios and cost analysis of CAES projects, and sorting out the technical key points and existing difficulties. The development trend of CAES technology is proposed, and the future development path is scrutinized to provide reference for the research of CAES projects in depleted oil and gas reservoirs. Graphical abstract

Performance Analysis and Optimization of Compressed Air Energy Storage Integrated with Latent Thermal Energy Storage

“…As an efficient and reliable energy storage technology to balance the electricity supply and demand, the investigations and applications of CAESs can be traced back to the 1960s. With the improvement in the penetration of renewable energy in grids, new energy grids integrating with CAESs have been widely investigated and surprising advances have been made [16]. In the 20th century, only two commercial CAES power plants were put into service, namely the Huntorf station in Germany [17] and the McIntosh station in America [18].…”