高温单模喇曼自校准监测系统设计  

Design of high temperature single mode Raman self-calibration monitoring system

作　　者：刘昌霞 李健 LIU Changxia;LI Jian(Shanghai Baiantek Sensing Technology Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]上海拜安传感技术有限公司,上海200120

出　　处：《光通信技术》2023年第2期44-47,共4页Optical Communication Technology

摘　　要：为了保证油气井高温分布式温度测量的准确度,设计了高温单模喇曼自校准监测系统,分别介绍了系统中分布式喇曼测温系统、光纤光栅温度校准系统的工作原理,并对系统的测温范围和测温精度进行了800℃的高温监测实验。实验结果表明:在测温距离为0~1 km,温度范围为0~800℃条件下,该系统的温度分辨率为0.1℃,测温精度为±2℃,基本满足高温分布式温度监测要求。In order to ensure the accuracy of high temperature distributed temperature measurement in oil and gas wells, a high temperature single mode Raman self-calibration monitoring system is designed. The working principles of the distributed Raman temperature measurement system and the fiber grating temperature calibration system in the system are introduced, and the high temperature monitoring experiment of 800 ℃ is carried out for the temperature measurement range and accuracy of the system.The experimental results show that the temperature resolution of the system is 0.1 ℃ and the temperature measurement accuracy is ± 2 ℃ under the condition that the temperature measurement distance is 0~1 km and the temperature range is 0~800 ℃, which basically meets the requirements of high temperature distributed temperature monitoring.

关 键 词：高温 单模喇曼散射 光纤光栅 自校准 

分 类 号：TN914[电子电信—通信与信息系统]