| 柔性管道骨架层压溃失效机理和安全评价方法研究进展 |
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| 引用本文： | 陈严飞,刘昊,孙伟栋,董绍华,覃雯琪,高莫狄,马尚.柔性管道骨架层压溃失效机理和安全评价方法研究进展[J].海洋工程,2021,39(4):154-162. |
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| 作者姓名： | 陈严飞 刘昊 孙伟栋 董绍华 覃雯琪 高莫狄 马尚 |
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| 作者单位： | 中国石油大学(北京) 油气管道输送安全国家工程实验室, 北京 102200;大连理工大学 工业装备结构分析国家重点实验室, 辽宁 大连 116024;中集海洋工程有限公司, 广东 深圳 518000 |
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| 基金项目： | 国家自然科学基金（51779265）；大连理工大学工业装备结构分析国家重点实验室开放基金（GZ19119）；深水油气管线关键技术与装备北京市重点实验室开放基金（BIPT2018002）；中国石油大学（北京）科研基金（2462020YXZZ045）；广东省促进经济发展专项资金（海洋经济发展用途）（GDOE[2019]A39） |
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| 摘 要： | 非黏结柔性管道作为深水油气开发领域的关键设备,是连接海底井口和海洋平台的主要纽带。海洋油气开发水深已经超过了3 000 m,高静水压力是深水软管设计和安全评价的主要挑战,明确深水柔性管道压溃失效机理,并准确地预测柔性管道的压溃压力可以为柔性管道结构设计和安全评价提供依据,柔性管道的压溃压力与骨架层的几何形状以及骨架层之间复杂的相互作用有关,准确高效地预测压溃压力变得极具挑战性。针对柔性管道失效机理研究和压溃压力预测方法进行了总结,指出当前柔性管道压溃失效分析中薄弱的环节,为我国非黏结柔性管道的结构设计和安全评价提供参考。
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| 关 键 词： | 柔性管道 骨架层 失效机理 压溃压力 安全评价 |
| 收稿时间： | 2020/7/27 0:00:00 |
A review on collapse failure mechanism and safety evaluation of flexible pipes carcass |
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| CHEN Yanfei,LIU Hao,SUN Weidong,DONG Shaohu,QIN Wenqi,GAO Modi,MA Shang.A review on collapse failure mechanism and safety evaluation of flexible pipes carcass[J].Ocean Engineering,2021,39(4):154-162. |
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| Authors: | CHEN Yanfei LIU Hao SUN Weidong DONG Shaohu QIN Wenqi GAO Modi MA Shang |
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| Institution: | National Engineering Laboratory for Pipeline Safety, China University of Petroleum (Beijing), Beijing 102200, China;State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116024, China;CIMC Offshore Co. Ltd., Shenzhen 518000, China |
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| Abstract: | As the most commonly used un-bonded flexible riser for ultra-deepwater oil and gas development, it is used to connect subsea wellheads and offshore platform. The depth of offshore oil and gas development has exceeded 3000m, and the ultra-high hydrostatic pressure is one of the main challenges in flexible pipe design. Accurately predicting the collapse pressure of flexible riser provides a basis for the design and integrity of flexible pipeline structure. However, the collapse pressure of the flexible riser is related to the geometry and the interaction of the carcass. Accurate and efficient prediction of the collapse pressure becomes extremely challenging. Based on the research on the collapse failure mechanism and the prediction methods of collapse pressure of flexible pipes, the weakness in the current flexible carcass collapse analysis is pointed out so as to lay the foundation for the future structural design of un-bonded flexible pipes. |
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| Keywords: | flexible pipe carcass failure mechanism collapse pressure safety evaluation |
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