Evaluating the impact of fractures on the long-term performance of the In Salah CO2 storage site

摘要: Abstract The In Salah Gas Joint Venture CO 2 storage project has been in operation Algeria since 2004 and is currently the world’s largest onshore project. injected into a saline aquifer of gas reservoir several km away from producers. Current focus on implementing comprehensive monitoring strategy modelling injection behaviour order to ensure verify safe long-term storage. A key part this effort understanding processes involved migration within relatively low-permeability sandstones shales influenced by fractures faults. We summarise our current fault fracture pattern at site show preliminary forecasts system performance using Discrete Fracture Models fluid flow simulations. Despite evidence reservoir/aquifer level, thick mudstone caprock sequence provides an effective mechanical seal for system; however, quantification effects essential verification.