Data from: Flow heterogeneity controls dissolution dynamics in topologically complex rocks

Rock dissolution is a common subsurface geochemical reaction affecting
pore space properties, crucial for reservoir stimulation, carbon storage,
and geothermal energy. Predictive models for dissolution remain limited
due to incomplete understanding of the mechanisms involved. We examine the
influence of flow, transport, and reaction regimes on mineral dissolution
using time-resolved data from 3D rocks. We find that initial pore
structure significantly influences the dissolution pattern, with reaction
rates up to two orders of magnitude lower than batch conditions given
solute and fluid-solid boundary constraints. Flow unevenness determines
the location and rate of dissolution. We propose two models describing
expected dissolution patterns and effective reaction rates based on
dimensionless metrics for flow, transport, and reaction. Finally, we
analyze feedback between evolving flow and pore structure to understand
conditions that regulate/reinforce dissolution hotspots. Our findings
underscore the major impact of flow arrangement on reaction front
propagation and provide a foundation for controlling dissolution hotspots.