Team 2 (IMAGE) Virginia Tech Caption Postdoctoral researcher Patrick Fan (left) and Ruichang Guo, a Ph.D. graduate student, demonstrate the proper loading of shale samples for permeability measurements. Credit Virginia Tech Usage Restrictions Credit Virginia Tech License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.