光学学报, 2019, 39 (10): 1006005, 网络出版: 2019-10-09
基于分布式光纤声波传感的管道泄漏监测 下载: 1586次
Monitoring Pipeline Leakage Using Fiber-Optic Distributed Acoustic Sensor
光纤光学 分布式声波传感 泄漏检测 小波降噪 fiber optics distributed acoustic sensing leakage detection wavelet denoising
摘要
提出一种基于高保真分布式光纤声波传感器的油气管线泄漏在线监测技术,介绍了该型光纤声波传感器的测量原理和技术优势,利用该传感器在模拟的管道泄漏实验场中实现了对输气管道泄漏的精确监测和定位。针对现场环境复杂、背景噪声强等问题,采用小波降噪算法进一步提升了泄漏事件的检测灵敏度,实现对加压0.05 MPa气体泄漏的准确检测。实验结果表明,本系统在油气管道安全监测领域具有优越的性能和良好的发展前景。
Abstract
This study proposes an online monitoring technology for oil and gas pipeline leakage based on a high-fidelity fiber-optic distributed acoustic sensor (HiFi-DAS) and introduces the measurement principle and technical advantages of DAS. The DAS can successfully detect and locate the leakage in a gas pipeline in a simulated field experiment. Considering the complex field environment and strong background noise, the wavelet denoising algorithm is adopted to further improve the detection sensitivity of leakage events, and gas leakage under pressure of 0.05 MPa is accurately detected in field experiments. Experimental results show that the proposed DAS system has superior performance in the field of oil and gas pipeline safety monitoring.
王辰, 刘庆文, 陈典, 李赫, 梁文博, 何祖源. 基于分布式光纤声波传感的管道泄漏监测[J]. 光学学报, 2019, 39(10): 1006005. Chen Wang, Qingwen Liu, Dian Chen, He Li, Wenbo Liang, Zuyuan He. Monitoring Pipeline Leakage Using Fiber-Optic Distributed Acoustic Sensor[J]. Acta Optica Sinica, 2019, 39(10): 1006005.