摘要
分布式光纤声波传感器(Distributed Acoustic Sensing,DAS)是近年来兴起的超密集地震观测系统,具有一系列观测密度高、观测成本低、耐受恶劣环境等优势,在油气行业得到了广泛应用,也引起了天然地震学界的关注.本文简要回顾了DAS系统的测量原理、发展历程、技术方案、介绍了测量原理及其响应特性,然后围绕多个观测实验,介绍浅部结构成像、深部结构探测和地震监测三个方向的典型应用实例,最后讨论了DAS系统在天然地震学研究中应用面临的挑战和发展趋势.
Distributed Acoustic Sensing(DAS)is a novel high dense seismic acquisition system based on the fiber-optic sensing technique.DAS has a number of advantages include:small channel spacing,low cost,available in tough environment and it has been widely used in borehole observation in oil-gas industry.Recently,DAS also draw attentions from seismology community and several field trials have been conducted showing its potential in seismology studies.We brief introduce the measurement,development,implements,response characteristics of DAS.Then,several typical field trials are introduced and typical applications are reviewed.Finally,the challenges and possible solutions are discussed.
作者
张丽娜
任亚玲
林融冰
宋政宏
曾祥方
ZHANG Li-na;REN Ya-ling;LIN Rong-bing;SONG Zheng-hong;ZENG Xiang-fang(Xiamen Seismic Survey Research Center,Earthquake Administration of Fujian Province,CEA,Xiamen 361021,China;Xiamen Institute of Marine Seismology,China Earthquake Adiministration,Xiamen 361021,China;State Key Laboratory of Geodesy and Earth’s Dynamics,Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China;University of Science and Technology of China,School of Earth and Space Sciences,Hefei 230026,China)
出处
《地球物理学进展》
CSCD
北大核心
2020年第1期65-71,共7页
Progress in Geophysics
基金
国家自然科学基金(41904064)
国家自然科学基金(41974067)资助.
关键词
分布式光纤声波传感器
光纤传感
地震成像
地震监测
Distributed Acoustic Sensing(DAS)
Fiber-optic Sensing
Seismic imaging
Earthquake monitoring
