TOUGH2

Background• TOUGH: Transport Of Unsaturated Groundwater and Heat

• Based on Equation-of-State models

Key equations

Applications

CCSBenchmark Problems• CO2 plume evolution and leakage through an abandoned

well• Enhanced CH4 Recovery in Combination with CO2

Storage in Depleted Gas Reservoir• CO2 Injection into a Heterogeneous Geological FormationResearch Questions• Application to CO2 Injection Well Placement• CO2 Sequestration Optimization in Large Scale Aquifer

Input information• Mesh: MESHM, ELEME, CONNE• Material properties: ROCKS, RPCAP, SELEC, DIFFU• Initial/boundary conditions: INDOM, INCON, GENER• Computational parameters: PARAM, SOLVR, MULTI,

ENDCY• Output: TIMES, FOFT, COFT, GOFT

Output Information• No graphical output• Output files in ASCII format• Some commercial postprocessors available

Output information: PetraSIM GUI