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Study on risk assessment and numerical simulation method of subsea manifold system
Ships and Offshore Structures ( IF 1.7 ) Pub Date : 2021-05-13 , DOI: 10.1080/17445302.2021.1926145
Zhaohui Shang 1, 2, 3 , Weidong Ruan 4 , Hongdong Qiao 1 , Yong Bai 1
Affiliation  

ABSTRACT

Subsea oil production facilities may face extreme or accidental events in association with site-specific conditions. In this paper, qualitative and quantitative assessment for the subsea manifold system is carried out by the fault tree analysis (FTA) method, and the reliability results of the manifold system are also obtained. The proposed approach has achieved the following three objectives: (a) based on the FTA method, the system reliability results can be effectively analysed; (b) according to the results of qualitative and quantitative analyses, the weak points in the system are identified; (c) based on the analyses of key components, the structure of valve spool can be optimised. Through the CFD numerical simulation for the spool structure, it shows that the valve flow characteristics are well improved. The solution proposed in this paper can help engineers to better assess and improve the reliability risk of process modules of subsea production system-related devices.



中文翻译:

海底管汇系统风险评估与数值模拟方法研究

摘要

海底石油生产设施可能面临与现场特定条件相关的极端或意外事件。本文采用故障树分析(FTA)方法对海底管汇系统进行定性和定量评估,并得到管汇系统的可靠性结果。所提出的方法实现了以下三个目标: (a) 基于 FTA 方法,可以有效地分析系统可靠性结果;(b) 根据定性和定量分析的结果,确定系统中的薄弱环节;(c) 基于关键部件的分析,可以优化阀芯的结构。通过阀芯结构的CFD数值模拟,表明阀门的流量特性得到了很好的改善。

更新日期:2021-05-13
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