Study on burst pressure of subsea pipelines with asymmetrical corrosion defects

被引：6

作者：

Chen, Zhan-Feng ^{[1
,4
]}

Chu, Wei-Peng ^{[1
]}

Shi, Lei ^{[2
]}

Li, Yan ^{[1
,3
]}

Wang, Wen ^{[1
]}

Li, Yu-Xing ^{[4
]}

机构：

[1] Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Peoples R China

[2] Petr & Petrochemicals Co Ltd, SINOPEC Dalian Res Inst, Dalian 116045, Peoples R China

[3] Weifang Univ Sci & Technol, Facil Hort Lab Univ Shandong, Weifang 262700, Peoples R China

[4] China Univ Petr Huadong, Prov Key Lab Oil & Gas Storage & Transportat Safet, Qingdao 266580, Shandong, Peoples R China

来源：

ENGINEERING FAILURE ANALYSIS | 2024年 / 155卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Asymmetrical corrosion defects; Burst pressure; DNV model; Subsea pipelines; FAILURE PRESSURE; REMAINING STRENGTH; PREDICTION;

D O I：

10.1016/j.engfailanal.2023.107722

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

As an efficient and inexpensive tool, pipelines are widely used in the transportation of hydrogen, carbon dioxide, oil and gas. The subsea pipelines are inevitably corroded because of the transportation environment and medium. The scholars have studied burst pressure of pipelines with simple corrosion defects, However, there are many research gaps in the burst pressure analysis of pipelines with complex corrosion defects. In this paper, the burst pressure of subsea pipelines with asymmetrical corrosion defects is studied. Firstly, a model of pipelines with asymmetrical and external corrosion defects is established. Then, the finite element method is conducted to analyze the burst capability of subsea pipelines with asymmetrical corrosion defects. Next, a novel method of simplifying asymmetrical corrosion defects is proposed. In the end, a modified DNV equation is presented to predict the burst pressure of subsea pipelines with asymmetrical corrosion defects. This study can provide a novel idea for obtaining the burst pressure of subsea pipelines with complex corrosion defects.

引用

页数：15

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