Distributed acoustic sensing technique and its field trial in SAGD well

Li Han; Xiangge He; Yong Pan; Fei Liu; Duo Yi; Chengjun Hu; Min Zhang; Lijuan Gu

doi:10.1117/12.2285742

25 October 2017 Distributed acoustic sensing technique and its field trial in SAGD well

Li Han, Xiangge He, Yong Pan, Fei Liu, Duo Yi, Chengjun Hu, Min Zhang, Lijuan Gu

Proceedings Volume 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications; 104642K (2017) https://doi.org/10.1117/12.2285742
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

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.

Citation Download Citation

Li Han, Xiangge He, Yong Pan, Fei Liu, Duo Yi, Chengjun Hu, Min Zhang, and Lijuan Gu "Distributed acoustic sensing technique and its field trial in SAGD well", Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104642K (25 October 2017); https://doi.org/10.1117/12.2285742

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