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Using a Fibre Optic Cable as Distributed Acoustic Sensor for Vertical Seismic Profiling at the Ketzin CO2 Storage Site
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
Summary
Fibre optic Distributed Acoustic Sensing (DAS) or Distributed Vibration Sensing (DVS) is a technology that uses an optical fibre cable as a sensor for acoustic signals. Within the last years, DAS/DVS was further developed to record seismic data. We present a successful DAS/DVS-VSP (Vertical Seismic Profiling) field test performed at the Ketzin CO2 storage site, Germany. It was possible to record 23 VSP source points simultaneously within four wells and to build a small 3D VSP cube. The DAS/DVS-VSP cube complements the 3D surface seismic by providing a focused high resolution image below the injection site.
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