Comparison of CO2 trapping in highly heterogeneous reservoirs with Brooks-Corey and van Genuchten type capillary pressure curves

Abstract

Geological heterogeneities essentially affect the dynamics of a CO 2 plume in subsurface environments. Previously we showed how the dynamics of a CO 2 plume is influenced by the multi-scale stratal architecture in deep saline reservoirs. The results strongly suggest that representing small-scale features is critical to understanding capillary trapping processes. Here we present the result of simulation of CO 2 trapping using two different conventional approaches, i.e. Brooks-Corey and van Genuchten, for the capillary pressure curves. We showed that capillary trapping and dissolution rates are very different for the Brooks-Corey and van Genuchten approaches when heterogeneity and hysteresis are both represented.

Suitability of depleted gas reservoirs for geological CO2 storage: A simulation study

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Enhancement of CO2 trapping efficiency in heterogeneous reservoirs by water‐alternating gas injection

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Characterization and modeling of CO2‐water‐rock interactions in Hygiene Sandstones (Upper Cretaceous), Denver Basin, aimed for carbon dioxide geological storage

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