Paper
12 December 2018 Field test of surface seismic measurement with a distributed acoustic sensing system
Tuanwei Xu, Shengwen Feng, Jianfen Huang, Yang Yang, Fang Li, Jinming Zhou, Hesper Yu
Author Affiliations +
Proceedings Volume 10849, Fiber Optic Sensing and Optical Communication; 108490D (2018) https://doi.org/10.1117/12.2503845
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China
Abstract
Based on phase-sensitive optical time domain reflectometer (φ-OTDR) and phase-generated carrier (PGC) algorithm, a real-time DAS system is built. The maximum sensing length and spatial resolution of the DAS system are 10 km and 6m, respectively. A field test of the DAS system using a single-mode telecommunication fiber cable with a length of 430 m for surface seismic measurement is presented. In the test, a series of conventional 3C-geophones are utilized as a criterion for comparison. Through the raw data absence of processing, preliminary wave, consistent with geophones, are clearly described, which means that the DAS system is capable of surface seismic detection.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tuanwei Xu, Shengwen Feng, Jianfen Huang, Yang Yang, Fang Li, Jinming Zhou, and Hesper Yu "Field test of surface seismic measurement with a distributed acoustic sensing system", Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490D (12 December 2018); https://doi.org/10.1117/12.2503845
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KEYWORDS
Backscatter

Optical fiber cables

Acoustics

Fiber optics sensors

Sensors

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