Abstract: By employing spin-echo sequence, the proton spin density micro-images of a series of sandstone samples saturated with brine were obtained.The images provided detailed description of internal structure of porous core.These results show that MRI method not only can provide qualitative description of some properties such as porosity and permeability, and is also possible in the future to measure thess physical parameters quantitatively.

Key words: Porouscore, MRI, Permeability, Porosity