Simulation of Air Injection in Light-Oil Fractured Reservoirs – From the Matrix Block Scale to the Cross-Section Scale by Using a Dual-Porosity Model

B015 SIMULATION OF AIR INJECTION IN LIGHT-OIL FRACTURED RESERVOIRS – FROM THE MATRIX BLOCK SCALE TO THE CROSS- SECTION SCALE BY USING A DUAL- POROSITY MODEL Abstract Air injection can be an economical alternative for pressure maintenance of fractured reservoirs as it avoids re-injecting a valuable associated gas and/or generating or importing a make-up gas. In addition the oil recovery can be enhanced thanks to the thermal effects associated with oil oxidation. However such an improved recovery method requires a careful assessment of the involved reservoir displacement mechanisms in particular the magnitude and kinetics of matrix-fracture transfers. Considering the situation