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Proceedings Paper

An oil and gas pipeline pre-warning system based on Φ-OTDR
Author(s): Dongjie Tan; Xiaozhong Tian; Wei Sun; Yan Zhou; Lu Liu; Yunbing Ma; Jia Meng; Hong Zhang
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Paper Abstract

Based on phase-sensitive optical time domain reflectometer (Φ-OTDR), an oil and gas pipeline pre-warning system is demonstrated and applied to monitor products pipeline laying along an optical cable. Theoretically, the longest monitor distance can be as long as the coherent length of light source through connecting repeater optical amplifiers, which can amplify not only pulse light but also Rayleigh scattering light. An appropriate algorithm derived from support vector machine (SVM) is developed to identify and classify different vibration signals along pipeline, including artificial digging, mechanical excavation and vehicles crossing. Field test in Gangzao pipeline shows that the pre-warning system can detect artificial digging within 5m, mechanical excavation and vehicles crossing within 50m.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91578W (2 June 2014); doi: 10.1117/12.2054698
Show Author Affiliations
Dongjie Tan, China Univ. of Petroleum-Beijing (China)
China National Petroleum Corp. (China)
Xiaozhong Tian, China National Petroleum Corp. (China)
Wei Sun, China National Petroleum Corp. (China)
Yan Zhou, China National Petroleum Corp. (China)
Lu Liu, China National Petroleum Corp. (China)
Yunbing Ma, China National Petroleum Corp. (China)
Jia Meng, China National Petroleum Corp. (China)
Hong Zhang, China Univ. of Petroleum-Beijing (China)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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