基于Ф-OTDR的管道光纤预警系统应用统计分析  

Application Statistical Analysis of Pipeline Optical Fiber Forewarning System Based onФ-OTDR

作　　者：曾科宏 赖康 颜刚 李新文 席有强 邸小彪 李刚 ZENG Ke-hong;LAI Kang;YAN Gang;LI Xin-wen;XI You-qiang;DI Xiao-biao;LI Gang(China Petroleum Pipeline Telecom& Electricity Engineering Co., Ltd., Langfang Hebei 065000,China;PetroChina Beijing Gas Pipeline Co., Ltd.,Beijing 100020,China)

机构地区：[1]中国石油天然气管道通信电力工程有限公司,河北廊坊065000 [2]中石油北京天然气管道有限公司,北京100020

出　　处：《科技和产业》2021年第6期241-245,共5页Science Technology and Industry

摘　　要：基于Ф-OTDR分布式光纤传感的管道光纤预警系统,利用同沟敷设的光缆作为分布式振动传感器,连续实时检测管道周围的振动信号进行提前预警与定位,通过长输油气管道测试与应用效果展示,系统具有较高的预警灵敏度、定位精度和有效预警准确率。结合应用实际,构建“技防+人防”管道安全防护体系。A pipeline optical fiber forewarning system based on the distributed optical fiber sensing technology known asФ-OTDR is introduced.The optical cable laid in the same trench is used as the distributed vibration sensor in order to continuously detect vibration signals around the pipeline in real-time as well as sending forewarning and positioning information.Through long-distance oil and gas pipeline applications,the system is verified to have high forewarning sensitivity,high positioning accuracy and effective alarm ratio.Combined with the actual application scenarios,it can constitute a pipeline security protection system in which technical protection and manual protection complement each other.

关 键 词：相位敏感光时域反射计(Ф-OTDR) 分布式振动传感器 管道光纤预警 定位精度 有效预警准确率 

分 类 号：TE88[石油与天然气工程—油气储运工程]