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2000年3月30日21点30分,张—杨线在张公桥配站收到清管球,排出积水70ｍ3,使该管线实现部分管段反向清管通球。同时,圣灯山、龙市镇、杨家山三个气田的输压下降,为低压气水井生产创造了条件。张—杨线起点是张公桥配气站,终点在杨家山气田山8井站,过去是川西南气矿的主要输气干
At 21:30 on March 30, 2000, Zhang - Yang line in Zhanggongqiao match station received a clean ball, drained 70m3 of water, so that the pipeline to achieve some of the pipe sections of the opposite of the pig. Meanwhile, the pressure drop of the three gas fields in Shengdengshan, Longshi and Yangjiashan created the conditions for the production of LPG wells. Zhang - Yang line starting point is the Zhanggong Qiao gas station, the terminal at the Yangshan Gas Field Shan 8 Well Station, the past is the main gas in Sichuan Southwest Gas Mines