This book provides petroleum engineers and geologists with the calculations and formulas on fluid flow and rock properties essential for conducting day-to-day operations. Through a combination of exercises and worked out examples, petroleum engineers and geologists will find tips and techniques for conducting competent quick-look evaluations. This new edition includes case studies, examples, and experiments as well as material for calculating oil and gas in-place and for conducting the reservoir studies required for establishing appropriate appraisal and delineation plans for the newly discovered oil and gas fields on wells drilled under exploration department supervision. With this book, engineers can plan, supervise, coordinate, and control the petrophysical exploration, appraisal, and delineation of data collection while interpreting, analyzing, and evaluating the petrophysical data to predict the presence of hydrocarbons in wells.