A high-sensitivity FBG accelerometer and application for flow monitoring in oil wells

Jiang, Shaodong; Wang, Yingying; Zhang, Faxiang; Sun, Zheng; Wang, Chang

doi:10.1016/j.yofte.2022.103128

Cited by 14 publications

(2 citation statements)

References 18 publications

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“…FBG-based optical fiber accelerometers (OFAs) can monitor several parameters related to structural integrity and have been implemented in different types of structures, for example, in a suspended bridge in Malaysia, where an FBG-based OFA array for low-frequency monitoring was used for vibration analysis [51]. On the other hand, Jiang et al proposed an FBG-based optical accelerometer capable of monitoring the flow of fluid in a pipe, based on the principle of elasticity theory [52]. Although they achieved promising results, limitations were related to external environmental noises, which can influence the collected measurements, as well as the sensor bandwidth, which is capable of monitoring only low frequencies, being susceptible to failure in mediumand high-frequency measurements.…”

Section: Able To Indicate Damage In Buried Pipelinesmentioning

confidence: 99%

FBG-Based Accelerometer for Buried Pipeline Natural Frequency Monitoring and Corrosion Detection

Pereira,

Sousa,

Mesquita

et al. 2024

Buildings

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Pipelines are structures with great relevance in different industrial sectors and are essential for the proper functioning of the logistics that support today’s society. Due to their characteristics, locations, and continuous operation, allied with the huge network of pipelines across the world, they require specialized labor, maintenance, and adequate sensing systems to access their proper operation and detect any damage they may suffer throughout their service life. In this work, a fiber Bragg grating (FBG)-based optical fiber accelerometer (OFA), which was designed and calibrated to operate through wavelength and optical power variations using different interrogation setups, was fixed together with a pair of FBG arrays along a 1020 carbon steel pipeline section with the objective of monitoring the pipeline natural frequency (fn_pipeline) to indirectly evaluate the detection and evolution of corrosion when this structure was buried in sand. Here, corrosion was induced in a small area of the pipeline for 164 days, and the OFA was able to detect a maximum fn_pipeline variation of 3.8 Hz in that period. On the other hand, the attached FBGs showed a limited performance once they could successfully operate when the pipeline was unburied, but presented operational limitations when the pipeline was buried in sand. This was due to the inability of the structure to vibrate long enough under these conditions and obtained data from these sensors were insufficient to obtain the fn_pipeline.

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Section: Able To Indicate Damage In Buried Pipelinesmentioning

confidence: 99%

FBG-Based Accelerometer for Buried Pipeline Natural Frequency Monitoring and Corrosion Detection

Pereira,

Sousa,

Mesquita

et al. 2024

Buildings

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show abstract

“…Since first reported in the early 1980s [ 17 ], it has undergone a fast development. At present, many types of fiber optic accelerometers have been reported, which can be sorted into the interferometric type [ 14 , 15 , 16 , 18 ], Bragg-grating type [ 19 , 20 , 21 ], and fiber-laser type [ 22 , 23 , 24 ] in terms of the sensing mechanism. Different types have different advantages.…”

Section: Introductionmentioning

confidence: 99%

The Two-Stage Suspension System of the Fiber Optic Vector Hydrophone for Isolating the Vibration from the Mooring Rope

Zhang

Wang

et al. 2022

Sensors

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The two-stage suspension system (TSSS) is designed for the fiber optic vector hydrophone (FOVH) to isolate the vibration from the mooring rope. The acceleration transmissibility of the TSSS is studied theoretically and experimentally. The results show that the TSSS has a major advantage over the traditional one-stage suspension system (OSSS). Typically, the vibration isolation of the TSSS is demonstrated to be over 25 dB higher than that of the OSSS at 100 Hz. Meanwhile, it is demonstrated that the TSSS has little negative influence on the in-band acceleration response of the FOVH. The TSSS has the prospect of reducing the mechanical noise of the FOVH, which is conducive to suppressing the self-noise and enhancing the ability of weak signal detection.

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A study on double-cantilever miniaturized FBG acceleration sensors for low-frequency vibration monitoring

Gao

et al. 2023

J Opt

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A high-sensitivity FBG accelerometer and application for flow monitoring in oil wells

Cited by 14 publications

References 18 publications

FBG-Based Accelerometer for Buried Pipeline Natural Frequency Monitoring and Corrosion Detection

FBG-Based Accelerometer for Buried Pipeline Natural Frequency Monitoring and Corrosion Detection

The Two-Stage Suspension System of the Fiber Optic Vector Hydrophone for Isolating the Vibration from the Mooring Rope

A study on double-cantilever miniaturized FBG acceleration sensors for low-frequency vibration monitoring

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