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缺陷的存在可能导致管道在运行过程中发生变形、泄漏、甚至破裂的失效事件,为确保管道安全,必须对管道进行修复,复合材料补强修复技术因为其安全、方便、快捷已成为石油天然气管道补强修复的主要方法。为确保管道本体缺陷修复效果,提升复合材料缺陷修复强度和修复性能,对历年来管道本体缺陷修复效果进行取样分析,结合有限元模拟分析和实验室制样测试分析,认为浸润程度、含胶量、湿度、风沙、材料储存环境是影响复合材料机械性能的因素,其中浸润程度和含胶量是最主要的影响因素。补强层数(厚度)对管道修复后的强度影响巨大,随着复合纤维材料补强层数(厚度)的增加,管道抵抗破坏的能力增强。
Defects may lead to pipe deformation, leakage and even rupture during operation. To ensure pipeline safety, the pipeline must be repaired. Because of its safety, convenience and speed, it has become an oil and gas pipeline Reinforce the main method of repair. In order to ensure the repairing effect of pipeline ontology defect and enhance the repairing strength and repairing performance of composite defect, sampling and analyzing the repairing effect of pipeline ontology defect over the years, combined with finite element simulation analysis and laboratory sample preparation test analysis, it is considered that the degree of infiltration, , Humidity, wind-blown sand and material storage environment are the factors that affect the mechanical properties of composites. The degree of infiltration and the content of gel are the most important factors. Reinforcement layer (thickness) has a great impact on the strength of the pipeline after repairing. With the increase of reinforcing layer (thickness) of the composite fiber material, the ability of the pipeline to resist damage is enhanced.