Drilling engineering is an important field of study that focuses on understanding the significant concepts and emerging technologies in drilling and excavations. The book aims to provide a comprehensive overview of the various techniques and practice involved in the process of drilling. Most of the topics included in this book such as geology, geochemistry, seismology, micropaleontology, etc. are bound to provide a multidisciplinary perspective of this field. The case studies in this book have been contributed by an international panel of experts. It attempts to assist those who are seeking detailed information in the field of drilling engineering.