Prior to joining Clemson in 1995, he was employed for 17 years by Cabot Oil & Gas and by Chevron. He received his Ph.D. in geology from the University of Illinois.Alan Byrnes is a research geologist at the Kansas Geological Survey, where he studies lithologic controls on rock petrophysical properties, CO2 enhanced oil recovery, reservoir characterization, and modeling. Alan received his M.S. degree in geophysical sciences from the University of Chicago. He has worked at the Gas Technology Institute, Marathon Oil Research Center, Core Laboratories, and Tetra Tech, and owned the special core laboratory GeoCore.