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The In situ Combustion Process (ISC) consists of a partial combustion of in situ oil, and its goal is to generate a combustion front able to make the oil flow. This combustion front will heat the oil's surrounding areas, achieving a reduction in oil viscosity and allowing its displacement into the production well. The aim of this investigation is to analyze and determine the parameters that influence the combustion process, highlighting the kinetics (activation energy, Arrhenius coefficient, and percentage of cracking for the production of coke) of three different models of chemical reactions and the air injection rate.

Thermal recovery methods are used typically to produce heavy oil and bitumen. During this process, the temperature is raised to reduce oil viscosity. Conventional thermal methods may not be effective on deep wells or thin zones. An alternative to the thermal process is electromagnetic heating, which is a process based on the transformation of electric energy into thermal energy due to the electromagnetic field and electrically sensitive particles interacting on the medium. In this paper, reservoir simulations with similar characteristics to those found in the sedimentary basins of the Brazilian Northeast were performed. The purpose of this work is to analyze the impact of the number of fractures, fracture configurations and number of producer wells during electromagnetic heating over the oil recovery factor (ORF) value. The results revealed an oil production increment with increasing number of producer wells and when fractures are located at the center of the oil production zone. However, oil production did not show an evident increase connected to the number fractures.