川东是中国的三大气区之一。该气区有天然气集输管线2530余千米,输气干线1156余千米。天然气管道密如蛛网,纵横贯通,有国民经济大动脉和能源的主血管之称。 天然气管道使用时间久了,免不了会被腐蚀、被破坏,甚至于发生管道破裂、天然气泄漏等事故。但管道深埋于地下,管道是不是破裂了、天然气是不是泄漏了, East Sichuan is one of China’s three major gas regions. There are more than 2530 km of natural gas gathering and transporting pipelines and 1156 km of gas transmission lines in this gas district. Natural gas pipelines such as cobweb, vertical and horizontal through, the main artery of the national economy and energy, said. Natural gas pipelines have been in use for a long time and will inevitably be eroded and destroyed, even causing pipeline rupture and natural gas leakage. But the pipe buried in the ground, the pipe is not broken, the natural gas is not leaked,