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Updating the Reservoir Model Using Engineering-consistent 4D Seismic InversionNormal access

Authors: S. Tian, C. MacBeth and A. Shams
Event name: 76th EAGE Conference and Exhibition 2014
Session: 4D Seismic in Reservoir Simulation - Closing the Loop
Publication date: 16 June 2014
DOI: 10.3997/2214-4609.20141143
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.52Mb )
Price: € 20

Summary:
An updating strategy is designed to iteratively close the loop between the fluid flow simulation predictions and measured production history, predicted and observed 4D seismic data, and finally predicted and inverted impedance/impedance changes. The central ingredient in this scheme is the computation of elastic property changes that are inverted from the seismic in an engineering-consistent manner. The geometry, volumetrics and transmissibility multipliers for the reservoir model are updated in three successive stages by sequential comparison between the seismic and fluid flow domains. The workflow is implemented on a West African field, where reservoir model improvements are obtained in combination with a consistency between model, impedance and seismic domains.


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