Distributed Acoustic Sensing (DAS) Response of Rising Taylor Bubbles in Slug Flow [PDF]
Sensors, 2022 Slug flow is one of the most common flow types encountered in surface facilities, pipelines, and wellbores. The intermittent gas phase, in the form of a Taylor bubble, followed by the liquid phase can be destructive to equipment.
Aleksei Titov +3 more
doaj +7 more sources
Evaluating Fluid Distribution by Distributed Acoustic Sensing (DAS) with Perforation Erosion Effect [PDF]
SensorsAmong the various completion strategies used in multi-stage hydraulic fracturing of horizontal wells, the limited entry design has become one of the most common approaches to promote more uniform slurry distribution.
Daichi Oshikata, Ding Zhu, A. D. Hill
doaj +4 more sources
Comprehensive Dataset for Event Classification Using Distributed Acoustic Sensing (DAS) Systems [PDF]
Scientific DataDistributed Acoustic Sensing (DAS) technology leverages optical fibers to detect acoustic signals over long distances, offering high-resolution data critical for applications such as seismic monitoring, structural health monitoring, and security.
Adrian Tomasov +5 more
doaj +5 more sources
Review of a Specialty Fiber for Distributed Acoustic Sensing Technology
Photonics, 2022 Specialty fibers have introduced new levels of flexibility and variability in distributed fiber sensing applications. In particular, distributed acoustic sensing (DAS) systems utilized] the unique functions of specialty fibers to achieve performance ...
Yixiang Sun +6 more
doaj +3 more sources
The Effectiveness of Distributed Acoustic Sensing (DAS) for Broken Rail Detection
Energies, 2023 Broken rails remain one of the main causes of railway accidents despite improved rail quality and inspections. Today, signalling system with track circuits are often used to detect broken rails, however new signalling systems such as the European Train ...
Adrian Wagner +4 more
doaj +2 more sources
Applied Sciences, 2023 The evolution of fiber optic technology in the past few decades has led to significant advancements in various fields, including high-speed and long-distance communication, big data transport, optical imaging, and sensing. However, relatively few studies
Mohamad Hafizal Mad Zahir +3 more
doaj +3 more sources
Recent Advances in Ultra-Weak Fiber Bragg Gratings Array for High-Performance Distributed Acoustic Sensing (Invited) [PDF]
SensorsDistributed acoustic sensing (DAS) systems have been widely employed in oil and gas resource exploration, pipeline monitoring, traffic and transportation, structural health monitoring, hydrophone usage, and perimeter security due to their ability to ...
Yihang Wang +8 more
doaj +2 more sources
Distributed optical fiber acoustic wave sensor detection technology for gangue slurry pipeline conveying blockage [PDF]
Scientific ReportsThe pipeline conveying system as the gangue slurry filling technology lifeline. The occurrence of pipeline blockage will lead to the paralysis of the entire filling system; timely detection of pipeline blockage and early warning are needed to ensure the ...
Lei Zhu +7 more
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Assessment of Distributed Acoustic Sensing (DAS) performance for geotechnical applications
Engineering Geology, 2022 Distributed Acoustic Sensing (DAS) is a recent technology that acquires acoustic vibrations via fiber optics sensors. The utilization of such technique for near-surface geotechnical applications has great potential, especially for the characterization and verification of artificially stabilized ground.
Giulio Vignoli, Mauro Coni
exaly +2 more sources
Near‐Field Acoustic Imaging Using Fiber‐Optic Distributed Acoustic Sensing and Beamforming Techniques [PDF]
Advanced ScienceDistributed acoustic sensors (DAS) detect mechanical vibrations along optical fibers with meter‐scale spatial resolution, capturing the waves directly reaching the fiber. Deploying dense fiber nets in two or three dimensions for spatially‐precise sensing
Marcelo A. Soto +1 more
doaj +2 more sources