Numerical analysis of pore-scale CO₂-EOR at near-miscible flow condition to perceive the displacement mechanism.

ABSTRACT: Gas flooding through the injection of [Formula: see text] is generally performed to achieve optimum oil recovery from underground hydrocarbon reservoirs. However, miscible flooding, which is the most efficient way to achieve maximum oil recovery, is not suitable for all reservoirs due to challenge in maintaining pressure conditions. In this circumstances, a near-miscible process may be more practical. This study focuses on pore-scale near-miscible [Formula: see text]-Oil displacement, using available literature criteria to determine the effective near-miscible region. For the first time, two separate numerical approaches are coupled to examine the behavior of [Formula: see text]-oil at the lower-pressure boundary of the specified region. The first one, the Phase-field module, was implement

SUBMITTER: Behnoud P 

PROVIDER: S-EPMC10400605 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature