Surface-to-Borehole CSEM for Waterflood Monitoring: Modeling & Data Analysis
D. Colombo and G. McNeice
Event name: 81st EAGE Conference and Exhibition 2019 Workshop Programme
Session: WS11 Reservoir Characterization and Monitoring from Inversion and Joint Inversion of Seismic and Non-seismic Methods
Publication date: 03 June 2019
Info: Extended abstract, PDF ( 577.83Kb )
Price: € 20
A full-scale 3D surface-to-borehole CSEM survey was carried out to map the position of the current waterfront around a test well in a producing oil field. Pre-survey modeling studies and experimental results show agreement in terms of measured signal levels, repeatability errors and expected sensitivity to targets. The vertical electric field shows the largest sensitivity to the spatial resistivity distributions in the reservoir. The obtained results provide the baseline for future time-lapse surveys targeting the monitoring of the water-oil saturation changes.