Two-phase flow visualization under reservoir conditions for highly heterogeneous conglomerate rock: A core-scale study for geologic carbon storage.

ABSTRACT: Geologic storage of carbon dioxide (CO₂) is considered a viable strategy for significantly reducing anthropogenic CO₂ emissions into the atmosphere; however, understanding the flow mechanisms in various geological formations is essential for safe storage using this technique. This study presents, for the first time, a two-phase (CO₂ and brine) flow visualization under reservoir conditions (10 MPa, 50 °C) for a highly heterogeneous conglomerate core obtained from a real CO₂ storage site. Rock heterogeneity and the porosity variation characteristics were evaluated using X-ray computed tomography (CT). Multiphase flow tests with an in-situ imaging technology revealed three distinct CO₂ saturation distributions (from homogeneous to non-uni

SUBMITTER: Kim KY 

PROVIDER: S-EPMC5861079 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature