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据新华社北京12月31日电,中国石油天然气集团公司2011年12月30日在陕西渭河北岸西气东输二线顺利完成了首次高钢级、大口径在役管道的开孔封堵作业。西气东输二线在新疆霍尔果斯与中亚天然气管道连接,是我国第一条引进境外天然气资源的大型管道。管材采用X 80钢,直径1219mm,设计压力12MPa,是目前世界上距离最长、管径最大、压力和钢级最高、工程量最为浩大的一项天然气管道工程,干线长4978km,支线长3726km。
According to Xinhua News Agency, Beijing, December 31, CNPC successfully completed the opening of the first high-grade and large-diameter pipeline in operation on the second West-East-East Gas Pipeline of the Weihe River in Shaanxi on December 30, 2011. The second West-East Gas Pipeline is connected with the Central Asia natural gas pipeline in Horgos, Xinjiang. It is the first large-scale pipeline in China to import natural gas resources from abroad. The pipe is X80 steel with a diameter of 1219mm and a design pressure of 12MPa. It is the natural gas pipeline project with the longest distance, the largest pipe diameter, the highest pressure and the highest steel grade and the largest amount of engineering volume in the world. The main line is 4978km in length and 3726km in extension.