本期案例关注的是个热点话题。自1959年我国第一条长输管道新疆克拉玛依油田至独山子炼油厂原油外输管道投产以来,管道运输业伴随着我国油气工业发展,经历了东北管网、华东管网、西北管网以及西气东输建设等几次阶段性的跨越式增长发展。到“十一五”末期,我国的油气管道总里程到达8.5万多公里。5年里,我国管线里程翻了一倍多,以每年接近1万公里的速度增 This case is concerned about the hot topic. Since 1959, China’s first long-distance pipeline from Karamay Oilfield in Xinjiang to the Dushanzi refinery crude oil pipeline has been put into operation, with the development of China’s pipeline industry, oil and gas industry, has experienced the Northeast Pipe Network, East China Pipe Network, Northwest Pipe Network and the West Gas transportation construction and other several stages of leapfrog growth and development. By the end of the “11th Five-Year Plan”, the total mileage of oil and gas pipelines in China reached more than 85,000 km. In five years, the mileage of our pipeline has more than doubled, increasing by nearly 10,000 kilometers per year