Exploring Carbonate Rock Dissolution Dynamics and the Influence of Rock Mineralogy in CO₂ Injection.

ABSTRACT: Understanding geochemical dissolution in porous materials is crucial, especially in applications such as geological CO₂ storage. Accurate estimation of reaction rates enhances predictive modeling in geochemical-flow simulations. Fractured porous media, with distinct transport time scales in fractures and the matrix, raise questions about fracture-matrix interface dissolution rates compared to bulk dissolution rate and the scale-dependency of reaction rate averaging. Our investigation delves into these factors, studying the impact of flow rate and mineralogy on interface dissolution patterns. By injecting carbonated water into carbonate rock samples containing a central channel (mimicking fracture hydrodynamics), our study utilized μCT X-ray imaging at 3.3 μm spatial resolution t

SUBMITTER: Shokri J 

PROVIDER: S-EPMC10867842 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature