Rehabilitation and anti-corrosion of corrosion pipelines by using the trenchless lining repair rehabilitation technology can greatly improve the bearing capacity and corrosion resistance of the pipe-line, extend the service life of the pipeline, effectively resolve the corrosion perforation problem of pipeline, reduce the production costs and environmental pollution and achieve the purpose of energy saving.Through a comparative analysis of three kinds of trenchless rehabilitation technologies:PCE lin-ing,HDPE interpenetration and lining inversion,the PCE lining rehabilitation technology is optimized. Field applications shows that this technology has characteristics of low construction cost,high adaptabil-ity, high temperature resistance and god corrosion resistance capacity after being rehabilitated and long construction distance for one time.Therefore,it has a good development prospect in the surface pipe-line rehabilitation in the oilfield.%对腐蚀管线采用非开挖内衬修复技术进行修复和防腐,能大幅度提高管道的承压能力和耐腐蚀性能,延长管道的使用寿命,还可以有效解决管线的腐蚀穿孔问题,降低生产成本,减轻环境污染,达到节能降耗的目的.通过对PCE内衬、HDPE穿插和翻转内衬三种非开挖修复技术的对比分析,优选了PCE内衬修复技术.经过现场应用表明,这种技术具有施工费用低、适应性强,修复后管线耐温高、防腐性能好,以及一次施工距离长等特点,在油田地面管线修复中有很好的发展前景.
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