This down-to-earth text gives you an edge in open-hole well log interpretation - access to the insight analysts gain from years of experience. Log analysis is a peculiar blend of art and science, requiring the ability to piece the clues provided by each log into the "big picture." That ability comes with experience and training - the kind of step-by-step training this book provides. Starting with the fundamentals, the book takes you through the study of individual curves on the log and the development of a complete picture to a study of supplementary curves and advanced methods of analysis. By providing a thorough working knowledge of the factors involved in log interpretation - porosity, permeability, resistivity, etc. - the book helps you better understand the assumptions and limitations of analysis that service companies seldom report. In addition, illustrated procedures guide you through each subject, and sample exercises at the end of each chapter give students an opportunity to test their knowledge. Logs only supply numbers. It takes insight to interpret those numbers correctly and to know which methods work in various situations. Such expertise can mean the difference between making money and losing it. This book gives you that expertise. Starting with the fundamentals, this text studies individual curves on the log and explains supplementary curves and advanced methods of analysis.