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Application of seismic complex decomposition on thin layer detection of the CO2 plume at Ketzin, Germany
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.ORCID iD: 0000-0002-9755-3941
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.
CNOOC Research Institute.
GFZ German Research Centre for Geosciences.
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2015 (English)Conference paper, Poster (Refereed)
Abstract [en]

The seismic complex decomposition technique is a spectral decomposition method using inversion strategies to decompose a seismic trace into its constituent frequencies and corresponding complex coefficients. This method has high time-frequency resolution and it is not necessary to select a signal window in comparison to conventional spectral decomposition methods. The thickness of the reservoir at the Ketzin pilot site is relatively thin, making it difficult to resolve seismically due to the band-limited seismic spectrum. This study presents an application of seismic complex decomposition to the time-lapse 3D seismic datasets at the Ketzin pilot site for estimating the temporal thickness of the injected CO2 within the thin reservoir via frequency tuning. Quantitative analysis for CO2 thickness and mass is investigated. Comparison between the real recorded data and the estimates shows that our results are reliable in assessing the amount of the CO2 in the plume at the Ketzin pilot site.

Place, publisher, year, edition, pages
New Orleans, USA, 2015. 5477-5482 p.
National Category
Geophysics
Identifiers
URN: urn:nbn:se:uu:diva-300999DOI: 10.1190/segam2015-5858469.1OAI: oai:DiVA.org:uu-300999DiVA: diva2:953162
Conference
85th SEG Annual Meeting
Available from: 2016-08-17 Created: 2016-08-17 Last updated: 2016-08-17

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Huang, Fei
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