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针对中国部分管道面临废弃但尚无管道弃置实际操作经验的问题,对国外油气管道废弃经验进行了调研,总结了国外陆地和海底管道废弃方法:陆地管道首先根据废弃矩阵初步确定其废弃方法,然后对管道进行现场评估,综合考虑管道使用现状、废弃成本、环境等多方面因素,对最初确定的废弃方法进行修正,二次确定最终的管道废弃方法;海底管道废弃处理方法主要取决于当地环境保护法律法规的相关规定,大部分海底管道均采用原地废弃的方法,而部分位于特殊位置的海底管段需要进行拆除。同时,提供了不同类型油气管道的废弃实例,可为中国油气管道的废弃处理提供参考。
Aiming at the problem that some Chinese pipelines are abandoned but have no practical experience in pipeline disposal, foreign oil and gas pipelines abandoned experiences were investigated and summarized. Land and submarine pipelines disposal methods in foreign countries were summarized. Firstly, land pipelines were initially determined according to the waste matrixes, and then On-site assessment of the pipeline, taking into account the current status of the pipeline, the cost of waste, the environment and other factors, the initial determination of the abandonment method to be amended to determine the final two pipe disposal methods; submarine pipeline disposal methods mainly depend on the local environmental protection Relevant regulations of laws and regulations, most of the submarine pipelines are abandoned in situ, while some of the subsea pipe sections in special positions need to be dismantled. At the same time, it provides examples of different types of oil and gas pipelines that can provide reference for the disposal of oil and gas pipelines in China.