Modeling of reservoir applications relevant to the CO2 sequestration portfolio

Subsurface reservoirs are used for various applications, driving the energy transition towards zero-carbon energy. Making optimal use of subsurface reservoirs is a great challenge for society these days. Geological CO2 Sequestration (GCS) can play a significant role in reducing anthropogenic CO2 emissions while allowing society to slowly phase out traditional energy sources. An accurate representation of GCS requires computationally expensive modelling of complex physical phenomena at various scales. These models involve many uncertain reservoir parameters and imprecise input information, demanding the generation of representative ensembles of models, thus making the computational cost even higher. In this talk, I will share our experience in the simulation of GCS applications using high-fidelity physics-based computational models. I will present parametrization technology, which allows us to develop a unified modelling framework with multiphase thermal-compositional formulation capable of covering a wide variety of GCS challenges. Several reservoir engineering applications relevant to the CO2 sequestration portfolio will be shown as well.