一种大跨度海底油气管道泄漏点实时定位方法  

A Real-Time Localization Method for Leakage Points of Large-Span Subsea Oil and Gas Pipelines

作　　者：陈绪兴 CHEN Xuxing(Shanghai Aoshi Control Technology Co.,Ltd,Shanghai 201801,China)

机构地区：[1]上海傲世控制科技股份有限公司,上海201801

出　　处：《成都信息工程大学学报》2024年第6期712-717,共6页Journal of Chengdu University of Information Technology

摘　　要：为解决海底大跨度油气管道的健康实时监测和泄漏定位问题,提出一种利用光纤水听器阵列进行海底管道泄漏实时被动声定位的方法。该方法根据管道长度的不同,设计了两种适用于中短距离(250 km以内)和长距离(250 km以上)的海底管道健康监测方案。分析了光纤水听器阵列技术的定位原理和误差来源,理论定位精度可达9.3 mm。开展了管道泄漏声压级监测的湖上实验,验证了光纤水听器阵列能够有效地检测和定位管道泄漏事件,优化了传感器组的间隔为1 km。该方法具有实时、多点、大跨度、高精度、不依赖泄漏物质成分、不影响管线结构等优点,为海底大跨度油气管道的安全运行提供了一种新的技术手段。To solve the problem of real-time health monitoring and leakage localization of large-span subsea oil and gas pipelines,a method of using a fiber-optic hydrophone array for real-time passive acoustic localization of subsea pipeline leakage is proposed.According to the different pipeline lengths,two health monitoring schemes suitable for medium-short distance(within 250 km)and long-distance(above 250 km)subsea pipelines are designed.The localization prin-ciple and error sources of fiber-optic hydrophone array technology are analyzed,and the theoretical localization accuracy can reach 9.3 mm.A lake test of pipeline leakage sound pressure level monitoring was carried out,which verified that the fiber-optic hydrophone array could effectively detect and locate pipeline leakage events,and optimized the sensor u-nit interval to 1 km.This method has the advantages of real-time,multi-point,large-span,high-precision,independent of leakage material composition,and no impact on pipeline structure,etc.,providing a new technical means for the safe operation of large-span subsea oil and gas pipelines.

关 键 词：光纤传感 海底油气管道泄漏 大跨度 实时定位 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]