我国人工硐室储气库技术取得重要进展

Core Insights - The successful completion of the gas storage sealing cycle test at the world's largest artificial cavern gas storage in Changsha, Hunan, signifies China's mastery of relevant technologies in the field, accelerating the industrialization and scaling of compressed air energy storage [1][2] Group 1: Test Achievements - The test achieved a pressure breakthrough of 18 MPa, surpassing the highest pressure level for artificial cavern gas storage [1] - The performance indicators of the gas storage facility, including sealing and stability, reached international first-class levels, setting five world records for ultra-high pressure, ultra-tight sealing, ultra-high reliability, ultra-comprehensive perception, and ultra-high efficiency [1] Group 2: Project Development - The artificial cavern gas storage test platform features two super-large test caverns, with a maximum depth of 110 meters and a maximum test pressure of 20 MPa, showcasing the largest scale and pressure parameters globally [2] - The laboratory was established in December 2022 and is set to be operational by August 2024, overcoming global challenges related to safety and economic efficiency in high-pressure, multi-medium, long-cycle gas storage [2] Group 3: Technological Innovations - The project involved collaboration among multiple groups, successfully addressing various technical challenges, including composite sealing systems and high-pressure air state observation, achieving 100% independent intellectual property rights [2] - The innovative test expands the utilization space for deep underground resources under ultra-high pressure conditions, potentially paving the way for new energy storage paradigms, including hydrogen, helium, and oil and gas reserves [2]