【History of Haichuan Pipeline】Phased completion of China’s longest coalbed methane long-distance pipeline project

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The last edit to this post was made by Desert Fish on October 22, 2021, at 10:30. Beijing, October 20 (Reporter Wang Enbo) – China National Offshore Oil Corporation announced on the 20th that the construction of the jacking process to pass the Shenmu-Anping Shale Gas Pipeline, China’s longest shale gas transmission pipeline (referred to as the Shenan Pipeline), through the main channel of the South-to-North Water Diversion Project has been completed, marking a phased completion of this important pipeline project. This pipeline is a key construction project listed in China’s 13th Five-Year Plan for the development and utilization of coalbed methane (coal mine gas), and its construction is overseen by CNPC Coalbed Methane Co., Ltd. (referred to as CNPC Coalbed Methane), a wholly-owned subsidiary of CNOOC. Luo Yong, chairman and Party secretary of Zhonglian Company, said that once the Shenan pipeline is completed and put into operation, it will provide an important guarantee for natural gas supply in North China. It is reported that the Shen’an Pipeline starts in Shenmu City, Shaanxi Province, passes through 3 provinces, 7 cities, and 17 counties, and finally reaches Anping County in Hebei Province. The total length of the pipeline is 622.98 kilometers, with a designed gas transmission capacity of 5 billion cubic meters per year. There are 28 valve rooms along the route, 3 compression stations in Shenmu, Kangning, and Anping, and 1 distribution station in Yanzhuang. The project for crossing the main channel of the Middle Route of the South-to-North Water Diversion Project is located in Zhengding County, Shijiazhuang City, at the end of the Shenan pipeline. To ensure the safety of the canals and pipelines, the distance from the bottom of the engineering canal to the top of the pipeline has been increased from 5.5 meters to 12.5 meters, which is more than double the original design value. The depth of the excavation shafts has been increased from 17 meters to 24 meters, a 40% increase, and a valve room has been added near the crossing point. The significant adjustments to the project design increased the difficulty and duration of construction. The company overcame numerous challenges, reversed the construction schedule, strictly controlled safety and quality standards, and completed the crossing project on time and to specification. Hu Senlin, director of Zhonglian Company and deputy secretary of the Party committee, said that the Shanxi-Hebei section of the Shenan pipeline will be completed and put into operation this year, enabling the supply of around 200 million cubic meters of natural gas to the North China region this winter, thus ensuring a stable supply of natural gas. It is understood that the Shen’an pipeline, as a long-distance pipeline spanning Shaanxi, Shanxi, and Hebei provinces, will, once fully operational, enable the continuous supply of natural gas from eastern Shaanxi and western Shanxi to thousands of households and industrial areas in the Beijing-Tianjin-Hebei region. By connecting to the Mengxi line, it can supply gas to the **new area; it can also be linked to Tianjin’s LNG terminals, enabling complementary use of two different gas sources. This setup helps ensure stable gas supply during peak periods, providing a safe, low-carbon, and efficient clean energy source for the North China region. (End)