Ramadan Ahmed is a professor of Petroleum Engineering at the University of Oklahoma where he teaches drilling engineering and related courses. Previously, Dr. Ahmed worked for five years as a senior research associate and adjunct professor at the University of Tulsa. He holds a BSc degree in Chemical Engineering from Addis Ababa University, and he earned MSc and Ph.D. degrees in Petroleum Engineering from the Norwegian University of Science and Technology. Dr. Ahmed worked for more than seven years in the industry. He conducts research in the area of drilling fluids, wellbore hydraulics, hole cleaning, downhole measurements, and corrosion of cement and tubulars. His experiences with wellbore hydraulics and cuttings transport-related research projects include studies on underbalanced and managed pressure drilling. Dr. Ahmed has authored or co-authored more than 180 research and technical articles and has given presentations at national and international conferences.