In recent years, the application of in-situ combustion, which has the advantages of sufficient gas source, energy saving and cleanness, has achieved great success and been recognized more and more widely. However, systematic well testing for in-situ combustion has not been established because it is unable to monitor the fire flooding front timely and effectively. In this article, the method of injection and output test together was put forward; through physical simulation and analogy criteria, the research of relationship between combustion front temperature, flow rate and output fluid component was realized, and the systematic well testing for in-situ combustion was established and applied. The experimental result indicates that the combustion front temperature is determined by the gas flow rate, but it is not a linear relationship; the change trend of output fluid quality and combustion front temperature are consistent; there is a positive correlation between the content changes of some saturated hydrocarbons and aromatic hydrocarbons in the produced oil and the temperature variation of the burning front, so the temperature variation of the burning front can be characterized.
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