出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The X-ray microtomography has showed to be a useful tool for studies of inner structure of reservoir rocks. Moreover recent works have used this methodology to visualize different fluid phases present in these microstructures. In this work, X-ray microtomography was used to visualize three-phase fluid, separately or simultaneously, in addition to a solid phase (glass beads). Two samples were manufactured and scanned, one of them with glass beads of 0.8 mm (GB1) and other one with 0.6 mm (GB2) diameter, respectively. The three fluid phases used were air, oil and a water-salt-potassium iodine solution. Two Skyscan scanners, 1172 model, were used. It employs an X-ray tube with W anode, cone beam and a CCD camera. This laboratory equipment is able to provide images of until 1 m spatial resolution. The 2D images show a clear presence of the solution in addition to the air and solid phase. They also show that the presence of oil phase is less clear than the solution. When all the phases are present together in the sample is possible to differentiate all of them. Individual 3D images are shown for each phase present in the sample. The 3D image containing all the phases is also shown.
