Based on some indoor physical simulation and the corresponding experimental equipments, to the channeling laws of CO₂ in the absence of filling phase and filling phase porous medium was researched. It specifically researched the impact that the factors have on CO₂ channeling level, such as temperature, pressure, permeability, high permeability and low permeability hierarchy. The results show that it reveals exponential relationship between the injection pressure and the breakthrough time of gas in porous media, and there is an empirical correlation can predict the gas channeling time, the differential permeability of hypertonic layer and low permeability layer has a great influence to the time of gas channeling and the flow rate of gas in the context of a certain critical pressure. The empirical regression equation can predict the swept volume of gas prior to the gas channeling under a certain differential.

CO₂,    , Heterogeneity,    ,  Differential,    ,  Porous media,    ,  Gas channeling