焊管2025，Vol.48Issue(11)：21-27,7.DOI:10.19291/j.cnki.1001-3938.2025.11.003
飞溅区卡簧式隔水套管振动响应及失效机制
Vibration Response and Failure Mechanism of Circlip Riser in the Splash Zone
摘要
Abstract
To address the damage caused by long-term wave erosion to risers in the splash zone of offshore platforms and ensure the safe operation of oil and gas wells,the vibration response characteristics and failure mechanisms of risers were investigated.A finite element model for vibration analysis of risers in the splash zone was constructed based on actual operating conditions,quantifying boundary conditions such as marine environmental loads,platform displacement,and stabilizer support reaction forces.The vibration characteristics of the circlip riser joint were analyzed through numerical simulation.The displacement amplitude of the circlip riser(peaking at 11.6 mm),the average stress of the male joint groove(up to 166 MPa),and the response patterns of joint failure were studied.Analysis of casing riser joints after wear of 1 mm,2 mm,3 mm,and 4 mm revealed the effects of corrosion thinning on stress.The stress patterns of key components during riser vibration,can provide a theoretical basis for health monitoring and preventive maintenance of riser in the splash zones.关键词
飞溅区/隔水套管/振动机理/磨损/有限元分析Key words
splash zone/riser/vibration mechanism/abrasion/FEA分类
石油、天然气工程引用本文复制引用
王文明,魏佳辉,王海龙,侯春来,于辰,薛莹..飞溅区卡簧式隔水套管振动响应及失效机制[J].焊管,2025,48(11):21-27,7.基金项目
国家自然科学基金国家重点研发计划项目"复杂油气智能钻井理论与方法"(项目编号51309237). （项目编号51309237）
