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近日,中国石油集团工程技术研究院成功研发复杂服役环境下海洋管道全尺寸弯曲疲劳试验技术,填补了我国海洋深水管道全尺寸疲劳性能评定技术领域的空白。在引发海洋管道事故的诸多因素中,疲劳损伤是导致海洋管道失效的主要原因。工程技术研究院依托国家863项目《深海油气输运高强厚壁管材关键技术研究》,通过建立基于ECA评估的有限元分析模型,对海洋
Recently, CNPC Engineering Technology Research Institute has successfully developed full-scale bending fatigue test technology for marine pipelines under complex service environment, which has filled in the blank of the technical field of full-scale fatigue performance assessment of marine deepwater pipelines in China. Among the many factors that trigger marine pipeline accidents, fatigue damage is the main cause of failure of marine pipelines. Based on the National 863 Project, “Key Technologies for Deep-sea Oil and Gas Pipeline Transportation of High-strength Thick-walled Pipe”, the Institute of Engineering Technology, through the establishment of a finite element analysis model based on ECA assessment,