oa Simulation of WAG and Gas Injection with Potential Sweep Improvement by Application of Foam

Stratified oil reservoirs with high permeability contrast and moderate structural dip are considered today as potential candidates for WAG and/or for dowdip gas injection. The combination of waterflooding and gas injection processes in WAG as well as updip gas injection are well known processes, quite intensively studied for North Sea application. This simulation study aims to compare different gas-assisted processes and has a focus on the importance of anisotropy and vertical inter-layer communication in stratified reservoirs for these methods.