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Carbon Dioxide Saturation Estimates at Sleipner Using Seismic Imaging and Rock Physics InversionNormal access

Authors: B. Dupuy, A. Romdhane, P. Eliasson, H. Yan, V. Torres, E. Querendez and A. Ghaderi
Event name: EAGE/SEG Research Workshop 2017
Session: Differentiation of Saturation, Pressure and Rock Strain
Publication date: 28 August 2017
DOI: 10.3997/2214-4609.201701954
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.95Mb )
Price: € 20

Summary:
We present an integrated approach combining Full-Waveform Inversion and rock physics inversion to estimate CO2 saturation at Sleipner. Acoustic FWI provides high-resolution P-wave velocity images where the uncertainty is quantified using posterior covariance matrix analysis. The seismic properties and their associated uncertainties are used as input to the rock physics inversion. At the fairly large distance of the injection point (533m), we derive CO2 saturations lower than 30% and which are following a patchy mixing distribution.


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