西气东输四线吐鲁番至中卫段贯通投产

Group 1 - The successful commissioning of the Gansu-Ningxia section of the West-to-East Gas Pipeline Phase IV (Turpan-Zhongwei) is a key project under China's 14th Five-Year Plan for oil and gas development, enhancing the efficiency of international oil and gas resource allocation and ensuring energy security under open conditions [1] - The West-to-East Gas Pipeline Phase IV is a strategic energy corridor connecting Central Asia and China, with the Turpan-Zhongwei section being a core component, spanning 1,745 kilometers and accounting for over half of the total length [1][2] - The pipeline has a designed annual gas transmission capacity of 15 billion cubic meters, equivalent to replacing over 27 million tons of standard coal and reducing carbon emissions by approximately 50 million tons [1] Group 2 - The Gansu-Ningxia section of the pipeline is 1,162 kilometers long, starting from the Hongliu Compressor Station to the Zhongwei Liaison Station, and runs parallel to four other oil and gas pipelines, facing complex geological conditions and harsh natural environments [2] - The project has implemented technological, construction, and management innovations to address extreme weather and geological challenges, including the use of high-grade steel pipes and automated welding techniques, significantly improving construction efficiency and quality [2] - The West-to-East Gas Pipeline Phase IV will operate in conjunction with the second and third phases, enhancing the reliability and flexibility of the gas supply system, facilitating the transportation of gas from Central Asia and Xinjiang to key regions in China [3]