Abstract: For the different adsorbates in the same adsorbent (porous media), the adsorption powers measured under the differenttemperatures are correlated with the adsorption potentials. The relative regression equations are given by matching the experimentaladsorption data from adsorption potential theory and definition of Dubinin adsorption potential. The regression equation can be usedto determine the average petrophysical parameters for a gas reservoir (Case 2)and create the adsorption isothermal curves forvarious components under given gas-layer temperature in it. It provides significant basic data and research methods such asadsorption phase equilibrium simulation and oil-gas reservoir numerical simulation for study of adsorption processes in porous media.

Key words: adsorption, isotherm, porous media, gas reservoir