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1前言近年来,随着石油、天然气工业的迅速发展,油气输送管道的建设也达到了一个高峰。我国“十二五”期间,世界范围内规划和在建的管道将超过20×100km,目前我国正在筹划的西气东输三线至六线等大型管道工程中,已经围绕管道工程材料的应用,开展了一系列针对石油天然气管道保护的立法工作。随着北海、里海、墨西哥湾等海域对石油天然气的开发,管道技术在海洋石油开发领域也得到了迅速发展。美国、日本、德国、意大
1 Introduction In recent years, with the rapid development of petroleum and natural gas industries, the construction of oil and gas pipelines has also reached a peak. During the “Twelfth Five-Year Plan” period in China, the planned and under construction pipelines in the world will exceed 20 × 100km. At present, the large-scale pipeline projects from the third line to the sixth line of the West-East Gas Pipeline under construction in our country have already been conducted around the pipeline engineering materials Application, carried out a series of legislative work on the protection of oil and gas pipelines. With the development of oil and gas in the North Sea, Caspian Sea and the Gulf of Mexico, the pipeline technology has also been rapidly developed in the field of offshore oil development. United States, Japan, Germany, Italy