Numerical Simulation of Reactive Flow in Hot Aquifers

1 Introduction. - 2 Numerical Simulation of Reactive Flow using SHEMAT. - 2. 1 General. - 2. 2 Governing Equations. - 2. 4 Input / Output. - 2. 5 Practical Modeling: Remarks, Explanations and Instructions. - 2. 6 Code Verification. - 3 Pre- and Post-Processing with Processing SHEMAT . - 3. 1 What is Processing SHEMAT? . - 3. 2 Modeling Environment. - 3. 3 Menu System. - 4 Advanced Features. - 4. 1 Chemical Equilibrium Speciation for Brines at High Temperatures and Ionic Strength. - 4. 2 Fractal Relation Between Porosity and Permeability: Theory and Verification. - 5 Tutorial for Processing SHEMAT . - 5. 1 Introduction. - 5. 2 Creating a Fluid Flow, Heat Transfer, and Solute Transport Model. - 5. 3 Using the Geochemical Reaction Module. - 5. 4 Expanding the Model to Three Dimensions. - 6 Applications. - 6. 1 Development of a Preferential Flow Path in an Anhydrite Cemented Sandstone: Numerical Simulation of a Core Flooding Experiment. - 6. 2 Modeling Flooding of a Sandstone Core with Reactive Transport and Subsequent Changes in Porosity and Permeability. - 6. 3 Injection Well with Reaction Kinetics. - 6. 4 Magmatic Intrusions in Long Valley Caldera. - 6. 5 Rhine Graben Cross Section. - 6. 6 Thermal Transect of Continental Lithosphere in Canada. - 6. 7 Waiwera Coastal Geothermal System. - References.