scholarly journals Real-time monitoring of oil-well dynamic liquid-level based on optical fiber sensing

2017 ◽  
Author(s):  
Hongtao Zhang ◽  
Wei Fu ◽  
Chunqian Wang ◽  
Guangyu Zhang ◽  
Zhenlong Wang
2014 ◽  
Vol 610 ◽  
pp. 199-204 ◽  
Author(s):  
Xiao Fei Zhang ◽  
Zhong Hu Lv ◽  
Xian Wei Meng ◽  
Fan Jiang ◽  
Qing Zhang

Nowadays, fiber optic technology has been used in sensing. Using the distributed optical fiber sensing technology in the landslide monitoring, the linear strain distribution information of the whole landslide can be obtained, and adopting the Fiber Bragg Grating sensing technology in the landslide monitoring, the key pot strain and displacement information can be gained. This paper firstly reviews the basic principle of optical fiber sensing, and then describes the optical fiber sensing real-time monitoring system by combining with FBG technology, BOTDR technology, database technology and web server technology, and finally presents a field application experiment using the real-time monitoring system in Ripley landslide in Canada. The experiment indicated that the real-time monitoring system can be realized real-time monitoring of FBG and BOTDR for landslide, and the experience can be extended to other landslide.


2014 ◽  
Vol 26 (17) ◽  
pp. 1742-1745 ◽  
Author(s):  
Hang-Zhou Yang ◽  
Xue-Guang Qiao ◽  
Kok-Sing Lim ◽  
Sulaiman Wadi Harun ◽  
Wu-Yi Chong ◽  
...  

2013 ◽  
Vol 341-342 ◽  
pp. 1089-1093 ◽  
Author(s):  
Xue Man Fan ◽  
Ying Jian Wang ◽  
Gui Li Wang ◽  
Chang Shu ◽  
Chun Guang Li

In this paper, the main factors influencing the reliability of submarine optical fiber cables (SOFC) are analyzed, and the significance of the research on real-time monitoring technology of SOFC is illuminated. Also, the principle of distributed double Mach-Zehnder (M-Z) interference vibration sensing system is discussed. Then, the feasibility of the system applied in pre-warning and fault location of SOFC is verified. In view of the main problems of the optical fiber vibration sensing system, two optimization schemes are presented in this paper to improve the performance of the system.


2019 ◽  
Vol 19 (17) ◽  
pp. 7179-7191 ◽  
Author(s):  
Camilo A. R. Diaz ◽  
Arnaldo Leal-Junior ◽  
Carlos Marques ◽  
Anselmo Frizera ◽  
Maria J. Pontes ◽  
...  

Sensors ◽  
2016 ◽  
Vol 16 (12) ◽  
pp. 2087 ◽  
Author(s):  
San-Shan Hung ◽  
Hsing-Cheng Chang ◽  
I-Nan Chang

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