Work

Simulating the CO2 Interface in Hydraulically Communicating Water-Oil Zones

Year: 2026

Type: article

Abstract: This work examines CO2 injection into hydraulically communicating water-oil zones using a CFD model based on the Volume of Fluid (VOF) method. Validation against analytical CO2-brine solutions confirms accurate pressure behavior in the viscous regime. Three-phase simulations show that the intermediate oil layer acts as a dynamic buffer, delaying CO2 -brine contact and modifying plume migration. A distinct outward-moving pressure inflection point is identified, providing a practical proxy for tracking the CO2 plume front in complex multi-fluid storage sites.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.24089911

Authors: Argyris Anagnostopoulos, Ernestos - Nikolas Sarris, Andreas Georgakopoulos

Institution: Aristotle University of Thessaloniki

Language: English

Topic: CO2 Sequestration and Geologic Interactions

Subfield: Environmental Engineering

Field: Environmental Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7225617667

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