Abstract
We discuss the effect of relative permeability characteristics and thermal conductivity on in situ combustion performance. A thermal simulator was used for the investigation. The simulator was initially used to simulate a laboratory in situ combustion run. Comparison between simulated and laboratory results shows that the simulator is adequate for this study. Results from the simulation study show that in situ combustion performance is very sensitive to relative permeability characteristics and to the thermal conductivity of the formation. These parameters affect the amount of fuel available for combustion. This process, in turn, affects the recovery and air requirement for in situ combustion projects.
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