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中国海洋石油(中国)有限公司(以下简称中国海油)自1985年在渤海埕北铺设第1条海底管道以来,许多海底管道逐步进人了中后期服役阶段。由于受当初技术经济条件的制约,以及设计、施工水平、材料缺陷和多年运行的损伤等原因,有些管线已存在不同程度的损伤,近年还发生过数次管线损坏事故,更给管道安全造成了严重的威胁。导致事故发生的原因包括第三方破坏、内腐蚀、工程质
Since CNOOC (China) Co., Ltd. (hereinafter referred to as CNOOC) laid its first submarine pipeline in Chengbei of the Bohai Sea in 1985, many submarine pipelines gradually entered the stage of service in the latter part of the latter. Due to the constraints of the original technical and economic conditions, as well as the design, construction level, material defects and years of operation damage and other reasons, some of the pipeline has been damaged to varying degrees, in recent years there have been several pipeline damage accidents, but also to the pipeline safety caused Serious threat. Reasons for the accident include third party damage, internal corrosion and engineering quality