该试验完成世界最高等级18兆帕超高压储气与超长周期"500小时"连续稳定运行验证，日泄漏率在千分 之一以下，创造了该领域运行时长与可靠性新的纪录。这标志着中国已实现从单项技术突破到全流程系 统解决方案的跨越，完全掌握人工硐室储气从科研探索到产业实践的完整能力。 记者：丁春雨 新华社音视频部制作 0:00 12月25日，中国能建对外宣布，已在长沙完成大型人工硐室储气原位试验，创造了该领域运行时长与可 靠性的世界新纪录。 ...

Core Viewpoint - The successful completion of the world's largest artificial cavern gas storage test platform by China Energy Construction Group marks a significant advancement in gas storage technology, enhancing the safety and economic viability of high-pressure gas storage solutions [1][2]. Group 1: Technological Advancements - The test achieved a pressure breakthrough of 18 MPa, the highest level globally, validating the performance indicators of gas storage, including sealing and stability, to meet international advanced standards [1]. - The experimental facility, which includes two super-large test caverns with a maximum depth of 110 meters and a maximum test pressure of 20 MPa, was established to tackle the challenges of high-pressure, multi-medium, long-cycle gas storage [1]. - The project has resulted in eight pioneering achievements, including a composite sealing system and theories on rock mass bearing capacity, all achieved with 100% autonomy [1]. Group 2: Industry Implications - The successful development of artificial cavern gas storage technology enhances the competitiveness of China Energy Construction's compressed air energy storage solutions, promoting large-scale development in the energy storage industry [2]. - This breakthrough opens up new possibilities for utilizing deep underground resources under ultra-high pressure and large fluctuations, integrating high economic efficiency, reliability, construction efficiency, and operational controllability [2]. - The technology can be extended to the storage of hydrogen, natural gas, and ammonia, fostering cross-industry technological synergies and breakthroughs [2].