SPE 146840 Pilot Testing Issues of Chemical EOR in Large ...
SPE 146840 Pilot Testing Issues of Chemical EOR in Large ...
SPE 146840 Pilot Testing Issues of Chemical EOR in Large ...
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<strong>SPE</strong> <strong>146840</strong> 15Figure B.4. A typical relative permeability <strong>in</strong> dual-permeability formulation <strong>in</strong> a grid cell close to <strong>in</strong>jector;left: water flood, right: dur<strong>in</strong>g surfactant <strong>in</strong>jectionFigure B.5. A typical capillary pressure <strong>in</strong> a cell next to the <strong>in</strong>jector <strong>in</strong> dual-permeability formulation;left: IFT-<strong>in</strong>duced, right: wettability alterationLangmuir adsorption formulation and pr<strong>of</strong>ile: bC ws wsasmC amax1 bCws1a max adsorption 850 ppm , b Longmuir coefficient=0.0003 ppm , and C concentration ppmmax ws(B.1)Figure B.6. A typical adsorption pr<strong>of</strong>ile for a grid cell next to the <strong>in</strong>jection cellleft: dual-permeability ref<strong>in</strong>ed-matrix right: dual-porosity ref<strong>in</strong>ed matrix