Numerical Simulation and Optimization of Gas Mobility Control Techniques During CO2 Sequestration in Cranfield

by Xueying Lu and Mohammad Lotfollahi

CO2 sequestration in subsurface often suffers from poor volumetric sweep efficiency due to low gas viscosity, low gas density, and formation heterogeneity. This study investigates CO2 mobility control techniques of Water Alternating Gas (WAG) and Surfactant (or Nanoparticle) Alternating Gas (SAG) to increase CO2 storage capacity in Cranfield via field-scale simulations and optimization. Continue reading