According to the statistical analyses of the data of the reservoir pore aspect ratio distribution from the open literatures,it is proposed that Kuster-Toksz equation is used for simplifying the reservoir pore aspect ratio distribution,computing the component porosities and predicting the reservoir pore types.

Also,it demarcates the length and width rate of the collected images ,which is the premise of handling and solving the problems of the programme accuracy testing with the images.