The field of engineering which deals with the activities related to the production of hydrocarbons is known as petroleum engineering. Such hydrocarbons include crude oil or natural gas. Its main goal is to maximize the economic recovery of hydrocarbons from subsurface reservoirs. Petroleum engineering estimates the recoverable volume of the hydrocarbon resource with the help of a thorough understanding of the physical behavior of the resources. Such resources are found at very high pressure within the porous rocks. Petroleum engineering assimilates the knowledge of various other fields such as geophysics, petroleum geology, drilling, economics, formation evaluation, reservoir engineering, artificial lift systems, well engineering and petroleum production engineering. This textbook aims to shed light on some of the unexplored aspects of petroleum engineering. Most of the topics introduced in this book cover new techniques and the applications of this field. It is appropriate for those seeking detailed information in this area.