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Proceedings Paper

Distributed acoustic sensing technique and its field trial in SAGD well
Author(s): Li Han; Xiangge He; Yong Pan; Fei Liu; Duo Yi; Chengjun Hu; Min Zhang; Lijuan Gu
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Paper Abstract

Steam assisted gravity drainage (SAGD) is a very promising way for the development of heavy oil, extra heavy oil and tight oil reservoirs. Proper monitoring of the SAGD operations is essential to avoid operational issues and improve efficiency. Among all the monitoring techniques, micro-seismic monitoring and related interpretation method can give useful information about the steam chamber development and has been extensively studied. Distributed acoustic sensor (DAS) based on Rayleigh backscattering is a newly developed technique that can measure acoustic signal at all points along the sensing fiber. In this paper, we demonstrate a DAS system based on dual-pulse heterodyne demodulation technique and did field trial in SAGD well located in Xinjiang Oilfield, China. The field trail results validated the performance of the DAS system and indicated its applicability in steam-chamber monitoring and hydraulic monitoring.

Paper Details

Date Published: 25 October 2017
PDF: 7 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104642K (25 October 2017); doi: 10.1117/12.2285742
Show Author Affiliations
Li Han, Petro China Xinjiang Oilfield Co. (China)
Xiangge He, Tsinghua Univ. (China)
Yong Pan, Petro China Xinjiang Oilfield Co. (China)
Fei Liu, Tsinghua Univ. (China)
Duo Yi, Peking Univ. (China)
Chengjun Hu, Petro China Xinjiang Oilfield Co. (China)
Min Zhang, Peking Univ. (China)
Lijuan Gu, Peking Univ. (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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