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Time-lapse Seismic Reservoir Characterisation to Aid History MatchingNormal access

Authors: L. M. Barens, P. Berthet and P. D. Prat
Event name: 70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008
Session: Building and Updating the Reservoir Model (EAGE/EUROPEC)
Publication date: 09 June 2008
DOI: 10.3997/2214-4609.20147902
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 2.55Mb )
Price: € 20

A seismic reservoir characterisation is method is explained and used to build a 3D facies model for the deep offshore Girassol field, Angola. This 3D seismic facies model is updated using time-lapse attributes derived from 2 repeat seismic surveys. During the update, non-reservoir cells that proved to have shown production induced impedance changes are reassigned to a most probable reservoir facies. Using the updated facies model in history matching, the breakthrough time of a injector/producer pair is significantly improved when compared to the initial reservoir model.

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