Reservoir Characterization and CO2-EOR Injection Studies in Chicontepec Turbidite Reservoirs, Mexico

Chicontepec fields are tight clastic deposits comprised of stacked turbiditic events with extreme geological heterogeneity and<br>variable heavy oil content. Huge reserves of oil are left behind because of loss of system energy by primary depletion;<br>offering challenging opportunities for IOR/EOR processes. We first present a general methodology for integrated<br>geostatistical reservoir characterization, using the technique of multivariate multiGaussian formalism for the integration of<br>data sources and scales. The resulting geostatistical models are calibrated to available production data, and used as predictive<br>tools for CO2-EOR and alternative solvent injection studies in simulated sector model pilots.