de Jonge-Anderson et al. (2026): CO2LOGIX: A first-order model of pressure-constrained CO₂ geological storage growth at the basin scale
Iain de Jonge-Anderson, Gareth Johnson, Juan Alcalde, Jennifer J. Roberts, IN: International Journal of Greenhouse Gas Control, https://doi.org/10.1016/j.ijggc.2026.104608
Subsurface pressure increases from CO₂ injection can constrain injectivity and operating margins, reducing the dynamic capacity of CO₂ geological storage systems. Engineered pressure management approaches are effective but carry additional cost and risk. Understanding the magnitude, interaction and evolution of these effects at the regional and multi-project scale is limited by computational demands and uncertainty over future deployment trajectories. This presents a limitation for climate-policy-informing frameworks such as Integrated Assessment Models (IAMs), which typically consider only static capacity in carbon capture and storage technology growth. The authors present CO2LOGIX, a new model which evaluates the scale of subsurface pressure buildup under different growth trajectories with computational efficiency. The model combines well-established analytical solutions describing pressure diffusion in the subsurface with a flexible logistic growth model, which informs well deployment rates and can be adjusted to reflect realistic development scenarios.