1974年9月投产的东黄(东营-黄岛)管道,全长248 km,管子规格为529×7(8)mm,管材为螺旋焊缝钢管。为了适应东部管网改造的需要,1999年9月,该条管道开始改输进口油(沙轻油)。2001年7月7日 11:10时,寿光丹河穿越段管道发生漏油,经现场勘察,在长1.8 km的漏油段内,发现沿螺旋焊缝有多处密集的穿透性腐蚀漏油点,各漏点呈不 The Donghuang (Dongying-Huangdao) pipeline put into operation in September 1974 has a total length of 248 km and a pipe size of 529 × 7 (8) mm. The pipe is a spiral welded steel pipe. In order to meet the needs of the transformation of the eastern pipe network, in September 1999, the pipeline began to change the import of oil (Sha light oil). At 11:10 on July 7, 2001, an oil spill occurred in the Shouguang Dan River through the pipeline. After a field survey, it was found that there were many intensive penetrating corrosion leaks along the spiral weld in the 1.8 m long oil spill section Oil point, the leak point was not