Distributed Fiber-optic Sensing Laboratory

What is Distributed Fiber-optic Sensing?

The application of fiber-optic sensing techniques to understand Earth’s subsurface and surface processes, as well as applications in Earth resources and infrastructure.

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DFOS is a vital toolkit for long-term monitoring with high spatial and temporal resolution, aiding us in uncovering previously undiscovered problems and gaining insight into enigmatic issues.

Peiyao Li

PhD Student, Mines Geophysics

(a) shows an example of a DAS recorded raw shot gather generated by perforation. Horizontal axis is the recording time, and vertical axis is the measured depth of the wellbore. Red color indicates the positive amplitude, whereas the blue color indicates the negative amplitude. Both P wave and tube wave are labeled. Panel(b) shows an expanded view of P-wave propagating towards to the pre-fractured (heel-ward) direction. The waveform distorted as it propagates further.

Projects

Cloud computing for reproducible machine learning with large-scale fiber-optic data
Scalable data science methods for high-throughput computational seismology
Fiber-optic seismicity monitoring in an underground longwall mine
Improving distributed acoustic sensing array use
Geophysical applications of novel fiber-optic electromagnetic sensing

Monitoring permafrost degradation with traditional and fiber-optic techniques
Distributed Acoustic Sensing Data Analysis Ecosystem, open-source software project
Developing a DAS seismic land streamer for geotechnical investigations
DAS-based monitoring of civil infrastructure including dams and dikes
Developing acquisition and processing strategies for time-lapse DAS monitoring of hydrological systems

DFOS-based reservoir monitoring and characterization (RCP)
Distributed Acoustic Sensing based pipeline monitoring (joint with Dr. Yilin Fan from PE).
DFOS applications in in-situ mining and CCUS
DTS-based long-term well integrity monitoring in Alaska (joint with USGS)
DAS-based induced seismicity monitoring (joint with CU)