焊管2026，Vol.49Issue(3)：1-7,7.DOI:10.19291/j.cnki.1001-3938.2026.03.001
基于修正系数法的超临界CO2管道止裂韧性计算模型研究进展
Research Progress on Crack Arrest Calculation Toughness Model of Supercritical CO2 Pipeline based on Correction Coefficient Method
摘要
Abstract
The deployment of pipeline transportation for supercritical CO2 has become an inevitable trend in the development of Carbon Capture,Utilization,and Storage(CCUS)technologies.Currently,no unified regulations or practices exist for calculating fracture arrest insupercritical CO2 pipelines.By reviewing relevant literature and standards both domestically and internationally,this study consolidates research findings regarding parameter modifications for supercritical CO2 pipelines based on the Battelle two-curve fracture arrest model.Furthermore,by incorporating recent engineering design conditions for supercritical CO2 pipelines,a comparative analysis was conducted on various correction outcomes of fracture arrest toughness,leading to the identification of toughness levels corresponding to different correction approaches.Comparisons with full-scale burst test results worldwide indicate that applying a correction factor of 2.5 to the fracture arrest toughness calculated via the Battelle two-curve model meets the design requirements for crack arrest.This factor ensures the safety of engineering designs,as supported by current domestic full-scale burst test data.关键词
超临界CO2管道/止裂韧性/裂纹长度/止裂压力Key words
supercritical CO2 pipeline/crack arrest toughness/crack length/arrest pressure分类
矿业与冶金引用本文复制引用
白芳,钟桂香,刘鑫,张振永..基于修正系数法的超临界CO2管道止裂韧性计算模型研究进展[J].焊管,2026,49(3):1-7,7.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目"二氧化碳规模化捕集、驱油与埋存全产业链关键技术研究及示范"(项目编号2021ZZ01). （项目编号2021ZZ01）
