一种基于BOTDA的分布式输油管线泄露检测技术  

Technology of distributed pipeline leak detection based on BOTDA

作　　者：贾振安[1] 张嘉庆[1] 刘颖刚[1] 魏婷[1] 王虎[1] 

机构地区：[1]西安石油大学光电油气测井与检测教育部重点实验室,西安710065

出　　处：《光通信技术》2012年第8期14-16,共3页Optical Communication Technology

基　　金：国家863计划项目(2009AA06Z203)资助;教育部科技创新工程重大项目培育资金项目(708087)资助;陕西省13115科技创新工程重大科技专项项目(2009ZDKG-42)资助;陕西省教育厅项目(2010JS037)资助;陕西省教育厅项目(2011JS050)资助;陕西省自然科学基金项目(2011JM8028)资助;西安石油大学全日制硕士研究生创新基金(2001CX100729)资助

摘　　要：根据输油管线小规模、高精度泄漏检测要求,设计了一种以原油敏感材料为基底的应变传感光缆,并建立了布里渊频移对光缆局部应变的响应模型,用于发现并定位漏油事件。通过组建的模拟实验系统,利用BOTDA对漏油导致的布里渊频移进行分布式检测,在15mi n内准确定位了小规模漏油,并且在1.714km的长度上实现了1m的空间分辨率和0.1m的定位误差。We designed a kind of strain sensing cable based on sensitive material of crude oil by the requirement of small-scale pipeline and high-precision leak detection,and also the response model of the brillouin frequency shift of local strain on the fiber optical cable was proposed to discover and locate the leak event.In the formed simulation system,we located the small-scale oil leak accurately within 15 minutes by the distributed detection of brillouin frequency shift caused by oil leak using BOTDA,besides,the spatial resolution of 1m and the positioning error of o.1m in the length of 1.714km were realized.

关 键 词：布里渊光时域分析 分布式 漏油 

分 类 号：TN29[电子电信—物理电子学]