Explore a 22-minute conference talk from the 2014 AGU Fall Meeting that delves into the effects of CO₂-induced reactions on transport properties of debonded well cement-casing interfaces. Learn about reactive flow-through experiments conducted on a metre scale, examining potential CO₂ leakage paths in wells. Discover key findings on apparent sample permeability, microstructural observations, and evidence for sealing mechanisms. Gain insights into upstream dissolution and downstream precipitation as a long-range defect sealing mechanism. Understand the implications for carbon storage and well integrity in the context of coupled hydraulic, geochemical, and geomechanical processes.