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Proceedings Paper

Imaging 3D strain field monitoring during hydraulic fracturing processes
Author(s): Rongzhang Chen; Mohamed A. S. Zaghloul; Aidong Yan; Shuo Li; Guanyi Lu; Brandon C. Ames; Navid Zolfaghari; Andrew P. Bunger; Ming-Jun Li; Kevin P. Chen
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Paper Abstract

In this paper, we present a distributed fiber optic sensing scheme to study 3D strain fields inside concrete cubes during hydraulic fracturing process. Optical fibers embedded in concrete were used to monitor 3D strain field build-up with external hydraulic pressures. High spatial resolution strain fields were interrogated by the in-fiber Rayleigh backscattering with 1-cm spatial resolution using optical frequency domain reflectometry. The fiber optics sensor scheme presented in this paper provides scientists and engineers a unique laboratory tool to understand the hydraulic fracturing processes in various rock formations and its impacts to environments.

Paper Details

Date Published: 12 May 2016
PDF: 6 pages
Proc. SPIE 9852, Fiber Optic Sensors and Applications XIII, 98520W (12 May 2016); doi: 10.1117/12.2227646
Show Author Affiliations
Rongzhang Chen, Univ. of Pittsburgh (United States)
Mohamed A. S. Zaghloul, Univ. of Pittsburgh (United States)
Aidong Yan, Univ. of Pittsburgh (United States)
Shuo Li, Univ. of Pittsburgh (United States)
Guanyi Lu, Univ. of Pittsburgh (United States)
Brandon C. Ames, Univ. of Pittsburgh (United States)
Navid Zolfaghari, Univ. of Pittsburgh (United States)
Andrew P. Bunger, Univ. of Pittsburgh (United States)
Ming-Jun Li, Corning Incorporated (United States)
Kevin P. Chen, Univ. of Pittsburgh (United States)

Published in SPIE Proceedings Vol. 9852:
Fiber Optic Sensors and Applications XIII
Eric Udd; Gary Pickrell; Henry H. Du, Editor(s)

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