CH ENERGY ENG(SH:601868) Guan Cha Zhe Wang·2025-08-19 08:21Core Insights - China Energy Construction has developed the world's largest artificial cavern gas storage in-situ testing platform, achieving a breakthrough with a maximum pressure level of 18 MPa, setting five world records in cavern scale, pressure, pressure difference, gas loss rate, and stability [1][3] - The platform, located in Wangcheng, Hunan, is the most advanced of its kind globally, featuring two ultra-large test caverns with a maximum depth of 110 meters and a design pressure of 20 MPa, showcasing unique dual cavern synchronous high-pressure testing capabilities [1][3] Technological Advancements - The platform's development involved collaboration with Changjiang Design Group and Wanhua Energy Saving Group, resulting in eight pioneering achievements, including a composite sealing system and theories for surrounding rock load-bearing and temperature field data acquisition, all with 100% independent intellectual property rights [1][3] - This breakthrough enhances China's artificial cavern gas storage technology route, accelerating the scale and industrialization of compressed gas energy storage [3] Industry Implications - The new technology introduces a "four high integration" paradigm for deep underground resource utilization, characterized by high economic efficiency, high reliability, high construction efficiency, and high operational controllability [3] - The technology has potential applications in the storage of strategic materials such as hydrogen, natural gas, ammonia, and oil, supporting the integrated development of energy systems and highlighting China Energy Construction's role in leading energy technology transformation and ensuring national energy security [3]