Corrosion Resistant FBG-Based Quasi-Distributed Sensor for Crude Oil Tank Dynamic Temperature Profile Monitoring.
Corrosion Resistant FBG-Based Quasi-Distributed Sensor for Crude Oil Tank Dynamic Temperature Profile Monitoring.
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DOI：
10.3390/s151229811
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发表时间：
2015-12-05
期刊：
影响因子：
--
通讯作者：
Pontes MJ
中科院分区：
文献类型：
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作者：
Marques Rda S;Prado AR;Antunes PF;André PS;Ribeiro MR;Frizera-Neto A;Pontes MJ
本文提出了一种耐腐蚀、可操作、本质安全的光纤布拉格光栅温度光学传感器。温度监测是油气行业的一项重要工作。它通常涉及在危险和腐蚀性环境中获取所需参数。提出使用聚四氟乙烯（PTFE）作为一种同时将光纤与腐蚀环境隔离并避免光纤光栅上不良机械张力的手段。所提出的传感器头是基于多个fbg内嵌在一个长单模光纤。该传感器的平均热灵敏度为8.82±0.09 pm/°C，典型温度分辨率为~0.1°C，平均时间常数值为6.25±0.08 s。在高盐度原油样品中暴露90天，通过红外光谱和扫描电镜验证了耐腐蚀和降解性。开发的传感器在模拟内陆原油储罐操作的现场试验中进行了测试，证明了其动态监测温度曲线的能力。
This article presents a corrosion resistant, maneuverable, and intrinsically safe fiber Bragg grating (FBG)-based temperature optical sensor. Temperature monitoring is a critical activity for the oil and gas industry. It typically involves acquiring the desired parameters in a hazardous and corrosive environment. The use of polytetrafluoroethylene (PTFE) was proposed as a means of simultaneously isolating the optical fiber from the corrosive environment and avoiding undesirable mechanical tensions on the FBGs. The presented sensor head is based on multiple FBGs inscribed in a lengthy single mode fiber. The sensor presents an average thermal sensitivity of 8.82 ± 0.09 pm/°C, resulting in a typical temperature resolution of ~0.1 °C and an average time constant value of 6.25 ± 0.08 s. Corrosion and degradation resistance were verified by infrared spectroscopy and scanning electron microscopy during 90 days exposure to high salinity crude oil samples. The developed sensor was tested in a field pilot test, mimicking the operation of an inland crude tank, demonstrating its abilities to dynamically monitor temperature profile.