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Using a Fibre Optic Cable as Distributed Acoustic Sensor for Vertical Seismic Profiling at the Ketzin CO2 Storage SiteNormal access

Authors: J. Götz, S. Lüth, J. Henninges and T. Reinsch
Event name: 77th EAGE Conference and Exhibition 2015
Session: VSP and Borehole Seismic
Publication date: 01 June 2015
DOI: 10.3997/2214-4609.201413363
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.21Mb )
Price: € 20

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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