A full field simulation of the in Salah gas production and CO₂ storage project using a coupled geo-mechanical and thermal fluid flow simulator

Abstract

We report results from a full field simulation model of the combined production and injection reservoirs, extending from a depth of 3.5 km to ground level, and with a lateral, $x$ and $y$, extent of approximately 50 km. The model couples geomechanical calculations to fluid flow with an energy transport equation. It simulates two-phase immiscible flow with four components (CH₄, CO₂, NaCl and H₂O) in the gas and aqueous phases. CO₂ may dissolve into the aqueous phase. Fractures are modelled explicitly in the grid.