央视网消息：记者8月27日从国家管网集团获悉，位于新疆伊犁的西气东输果子沟管道工程的控制性工程，1号山岭隧道成功贯通。工程建 设历时一年，全长近6公里，创下多项行业纪录。 果子沟地处西天山腹地，是西气东输二线、三线穿越天山山脉的必经之路，由于该地区地质地貌复杂，地质灾害频发，对西气东输管道系 统的平稳运行构成挑战。此次建设管道工程包括4条长距离山岭隧道，是目前国内油气管道领域单次掘进长度最长、断面尺寸最大、海拔最 高、高差最大的山岭隧道项目。 国家管网集团西部管道公司果子沟段项目执行经理 于士春：新建管道里程32公里，采用双管同沟铺设，管道建成后与在役管道联合运 行、互为备用，可提高西二三线管道系统整体安全性。 据了解，西气东输二三线果子沟管道工程预计2027年9月全线投产。截至目前，西气东输二线、三线管道已累计输送天然气超5570亿立方 米，惠及了管道沿线5亿人口。 走进隧道施工现场 感受大国工程硬核科技 天山腹地地质地貌复杂，作为油气管道领域单次掘进长度最长、高差最大的隧道项目，是如何实现安全施工的？来看记者在隧道贯通前从 施工现场带来的观察。 国家管网集团西部管道公司果子沟段项目执行经理 于士春：目前系 ...

Group 1: Deepwater Equipment Delivery - China National Offshore Oil Corporation (CNOOC) has delivered 24 sets of 2000-meter deepwater suction anchors to Brazil, marking it as one of the largest deepwater oil and gas equipment deliveries by China [1][3] - The suction anchors weigh approximately 2674 tons, with a maximum height of 21 meters and a diameter of 8 meters, presenting significant technical challenges in precision control and deformation management due to their large size and thin wall thickness of 25 millimeters [3] Group 2: Technological Innovations - The project team achieved a quality compliance rate exceeding 99.9% through innovative construction techniques, including horizontal extension and vertical assembly, as well as advanced technologies like 3D scanning and finite element simulation [5] - The suction anchors will be installed at the Mero oil field in the Santos Basin, located in southeastern Brazil [5] Group 3: Marine Research Vessel - The first ocean-class intelligent comprehensive scientific research vessel, "Tongji," has been delivered, designed and built independently by China, featuring a 2000-ton capacity and advanced green, quiet, and intelligent technologies [6][8] - "Tongji" measures 82 meters in length and 15 meters in width, capable of accommodating 15 crew members and 30 research team members, with an operational range of 8000 nautical miles [8] Group 4: Power Grid Development - The Xinjiang 750 kV ring network project is nearing completion after 15 years of construction, with a total line length of 4197 kilometers, making it the largest 750 kV ultra-high voltage transmission ring network in China [11][17] - The project will enhance the power grid coverage to approximately 1.06 million square kilometers, nearly one-ninth of China's land area, and will facilitate the integration of renewable energy resources in the Tarim Basin [11][17]