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High resolution 3C fiber laser micro-seismic geophone array for cross-well seismic
Author(s): Fa-xiang Zhang; Shao-dong Jiang; Xiao-lei Zhang; Zhi-hui Sun; Xiao-hui Liu; Chang Wang; Jia-sheng Ni
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Paper Abstract

A two level 3-component distributed feed-back (DFB) fiber laser micro-seismic geophone array based on wavelength/space division multiplexing is developed. High resolution dynamic wavelength demodulation was realized with a coherent detection technology. The geophone array was tested in laboratory and showed that the detection capability of the weak vibration signals between 5-500 Hz was better than conventional moving-coil geophone. A cross-well test of the array was performed in a 100 m depth well in Changqing Oil Field in northwest China. The two level 3-component fiber laser micro-seismic geophone array was compared with the traditional in-well seismic geophone and showed better signal noise ratio (SNR) in the cross-well seismic signal acquisition. This 3C fiber laser micro-seismic geophone array system is promising in the cross-well seismic monitoring.

Paper Details

Date Published: 25 October 2017
PDF: 7 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 1046426 (25 October 2017); doi: 10.1117/12.2285719
Show Author Affiliations
Fa-xiang Zhang, Shandong Academy of Sciences (China)
Shao-dong Jiang, Shandong Academy of Sciences (China)
Xiao-lei Zhang, Shandong Academy of Sciences (China)
Zhi-hui Sun, Shandong Academy of Sciences (China)
Xiao-hui Liu, Shandong Academy of Sciences (China)
Chang Wang, Shandong Academy of Sciences (China)
Jia-sheng Ni, Shandong Academy of Sciences (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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