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大港油田孔大站至南一站输油管道，采用由日本进口的219×6的钢管，全长20．5km。采用黄夹克泡沫塑料防腐保温，到1991年3月共有15处发生20次腐蚀穿孔，多数穿孔点集中分布在管道接口附近以及固定支墩附近等处，分析了这些地方腐蚀穿孔的原因；检测了泡沫塑料层和夹克层的质量，分析了夹克层周向应力开裂的原因是受夹克层制品在生产成型时的温度和拉伸力大小的影响；指出了环氧煤沥青玻璃布是一种比较理想的泡沫塑料保护层，并给出了保护层的结构及厚度；最后指出采取防腐保温与阴极保护并用措施，可最大限度地降低腐蚀穿孔；应对夹克料进行改性研究，增加其弹性，提高聚乙烯耐应力开裂性能；交联聚乙烯热收缩带是聚乙烯夹克的配套补口材料；处于低洼地区的夹克泡沫塑料管道的现场修补技术，都有待进一步研究。
Dagang Oilfield Kong station to the South Station oil pipeline, imported from Japan using 219 × 6 steel, a total length of 20.5km. The use of yellow jacket foam anti-corrosion insulation, to March 1991 a total of 15 occurred 20 times corrosion perforation, the majority of perforation points concentrated near the pipe interface and the fixed support pier near the Department of the analysis of the causes of corrosion and perforation of these places; tested Foam layer and jacket layer. The reason of the cracking of the jacket layer in the circumferential direction is analyzed by the influence of the temperature and the tensile force of the jacketing layer in the process of forming. It is pointed out that the epoxy coal tar pitch glass cloth is a kind of comparison The ideal foam protective layer, and gives the structure and thickness of the protective layer. Finally, it is pointed out that anticorrosive thermal insulation and cathodic protection combined measures can minimize the corrosion perforation. The jacket material should be modified to improve its elasticity and increase Polyethylene resistance to stress cracking performance; cross-linked polyethylene heat shrinkable tape polyethylene jacket jacket complement material; in the low-lying jacket jacket foam pipe on-site repair techniques have yet to be further studied.