Seismic waveform inversion as a method for time-lapse monitoring at CO2 geological storage sites - A synthetic study

Zhang, F.; Juhlin, Christopher

Access Status

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Authors

Zhang, F.

Juhlin, Christopher

Date

2011

Type

Conference Paper

Metadata

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Citation

Zhang, F. and Juhlin, C. 2011. Seismic waveform inversion as a method for time-lapse monitoring at CO2 geological storage sites - A synthetic study, in Proceedings of the 73rd EAGE Conference and Exhibition incorporating SPE EUROPEC 2011, May 23-26 2011, pp. 5486-5488. Vienna: European Association of Geoscientists & Engineers.

Source Title

73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Incorporating SPE EUROPEC 2011

Additional URLs

http://www.earthdoc.org/publication/publicationdetails/?publication=50929

ISBN

9781617829666

School

Department of Exploration Geophysics

URI

http://hdl.handle.net/20.500.11937/28993

Collection

Curtin Research Publications

Abstract

Injection of CO2 into reservoirs will increase the pressure in the reservoir and lower the seismic velocity of the reservoir formation. Time-lapse 3D surface seismic surveys are a proven reservoir monitoring tool. As an alternative, we investigate here the use of a limited number of low frequency sources and broadband receivers for detecting changes in the subsurface response of the site. We do this by generating synthetic data over layered media, before and after CO2 injection based on the geological information from the CO2SINK site at Ketzin, west of Berlin. Rather than using conventional CDP processing, we investigate if seismic waveform tomography can be used for time-lapse monitoring of the subsurface.