Rocks typical of petroleum reservoirs as well as model porous media have been examined by high resolution microtomography. The internal pore structure and the 3D-distribution of particular (solid or fluid) phases can be studied a posteriori using the tomography data. This type of information is useful for understanding the macroscopic behavior of rocks in terms of petrophysical properties and wettability. This work has been performed on a novel high resolution radiography and tomography system adapted onto an electron microprobe. Comparaison of electron microscope and microtomography data shows reliable reconstruction of external morphology. The system is capable of 2 micron resolution radiographic imaging and better than 10 micron resolution tomographic reconstruction. Interpretation problems similar to those encountered in medical scanners are found, albeit at a much smaller scale.
Publication Source: International Symposium on Computerized Tomography for Industrial Applications and Image Processing in Radiology March, 15 - 17, 1999 Berlin, Germany. Proceedings BB 67-CD. Publisher:DGZfP - German Society of Non-Destructive Testing