Simulation Study of Hot Gas Injection in GAGD Process in a Fractured Medium Oil Reservoir

Hot gas injection in the gas assisted gravity drainage (GAGD) process in a fractured medium oil reservoir creates a hot gas invaded zone in the reservoir. Hence, the gravity drainage mechanism will improve and accelerate with hot gas injection effects on the oil viscosity reduction within matrix blocks of hot gas invaded zone and with increasing the density difference of this zone, therefore it leads to create a new process entitled ? hot gas assisted accelerate gravity drainage (HGAAGD) ?. Simulation results show that HGAAGD process has more oil production rate, cumulative oil production, oil recovery factor and less gas-oil ratio (GOR) than the GAGD process.