超高压大壁厚海底管道屈曲传播研究  

Propagation Buckling Study of Ultrahigh Pressure Large Wall Thickness Submarine Pipeline

作　　者：贾鲁生 刘晓霞 李丽玮 李琰程 JIA Lu-sheng;LIU Xiao-xia;LI Li-wei;LI Yan-cheng(CNOOC Research Institute Co.,Ltd.,Beijing 100027,China)

机构地区：[1]中海油研究总院有限责任公司,北京100027

出　　处：《管道技术与设备》2023年第3期19-22,共4页Pipeline Technique and Equipment

摘　　要：文中基于设计压力为56 MPa的超高压大壁厚海底管道,采用三维有限元模拟,进行屈曲传播分析计算,结果显示:有限元模拟屈曲传播结果与标准DNV GL-ST-F1012017版公式的计算结果比较吻合。DNV GL规范对管道屈曲传播计算公式限定了15<D/t<45的适用范围,通过有限元进行敏感性分析,海底管道径厚比D/t≤15的情况可以采用该规范公式进行计算。Based on ultrahigh pressure large wall thickness submarine pipeline with design pressure of 56 MPa in this paper,3-D finite element simulation was used to analyze and calculate the buckling propagation.The results show that the finite element simulation buckling propagation results are almost the same as equation calculation results in standard DNV GL-ST-F1012017.The DNV GL specification limits the application range of the pipeline buckling propagation formula to 15<D/t<45,the equation in this code can be used in the submarine pipeline with D/t≤15 through sensitivity analysis carried out by finite element method.

关 键 词：海底管道 有限元 超高压 大壁厚 屈曲传播 

分 类 号：TE832[石油与天然气工程—油气储运工程] TE53