Integration of Reservoir Simulation with 3D Reflection Seismic Time-lapse Data at Ketzin
2014 (English)Conference paper, Abstract (Refereed)
In this study we integrate reservoir simulation with 3D reflection seismic time-lapse data from the KetzinCO2 storage pilot site using density and velocity models, a porosity model and a fluid flow simulationmodel. To simulate the seismic response corresponding to the real data, detailed density and velocitymodels are properly generated from the stratigraphic model and available borehole logging data. Thereservoir simulation model providing the spatial CO2 saturation in the reservoir based on numericalsimulations history-matched to the site monitoring data is used to calculate the bulk densities andcompressional wave velocities of the rock after CO2 injection using a fluid substitution method. 3Dsynthetic seismic data are generated by convolving the density and velocity models with two differentsources to study the change in seismic response after CO2 injection and to investigate the impact of thedifferent source types on CO2 monitoring. Our results provide estimates of the time-lapse anomaliescaused by CO2 injection and demonstrate that the choice of source type is a critical factor for time-lapseseismic monitoring to assess the distribution of injected CO2. The same source type should be used in thebaseline and repeat surveys for site operation.
Place, publisher, year, edition, pages
Amsterdam, Netherlands, 2014. 3515-3519 p.
IdentifiersURN: urn:nbn:se:uu:diva-301001DOI: 10.3997/2214-4609.20141002OAI: oai:DiVA.org:uu-301001DiVA: diva2:953164
76th EAGE Conference and Exhibition