12 May 2016 Imaging 3D strain field monitoring during hydraulic fracturing processes
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rongzhang Chen, Rongzhang Chen, Mohamed A. S. Zaghloul, Mohamed A. S. Zaghloul, Aidong Yan, Aidong Yan, Shuo Li, Shuo Li, Guanyi Lu, Guanyi Lu, Brandon C. Ames, Brandon C. Ames, Navid Zolfaghari, Navid Zolfaghari, Andrew P. Bunger, Andrew P. Bunger, Ming-Jun Li, Ming-Jun Li, Kevin P. Chen, Kevin P. Chen, "Imaging 3D strain field monitoring during hydraulic fracturing processes", Proc. SPIE 9852, Fiber Optic Sensors and Applications XIII, 98520W (12 May 2016); doi: 10.1117/12.2227646; https://doi.org/10.1117/12.2227646

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