The branch of engineering, which deals with the processes related to the production of hydrocarbons is known as petroleum engineering. These hydrocarbons could either be in the form of natural gas or crude oil. Petroleum engineering focuses on estimating the volume of hydrocarbon reservoir which can be recovered. This is done with the help of a detailed understanding of the physical behavior of water, oil and gas within porous rock at intense pressure. Some of the sub-disciplines of petroleum engineering are reservoir engineering, drilling engineering and petroleum production engineering. There are various other disciplines, which contribute knowledge to this field such as formation, evaluation, economics and artificial lift systems. Petroleum engineering is an upcoming field of science that has undergone rapid development over the past few decades. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in this field. It will serve as a valuable source of reference for graduate and postgraduate students.