Coupled Reactive Transport Models of Acid Gas Injection (AGI) in Siliciclastic and Carbonate Reservoirs: Understanding Fundamental Controls on Injection Performance and Storage Security

One of the commonly proposed methods for reducing CO2 and other acid gas emissions is to inject them in petroleum<br>reservoirs for Enhanced Oil Recovery (EOR) or to store them in deep saline aquifers. Any successful acid gas injection (AGI)<br>project needs to meet three key objectives: 1) Safety, Health and Environment (SHE); 2) efficient sweep of pore space; and 3)<br>reliability of operations. A fundamental approach that couples process-based models with laboratory data and field<br>observations will allow us to better understand the key controls on AGI performance and storage security and therefore make<br>better design decisions from appraisal to development to monitoring.