This course is designed to acquaint reservoir engineers and asset teams to the interactive Petrel reservoir engineering tools used for the construction of simulation models. In this course, you will build a 3D simulation model inside Petrel based on a geological input data, add wells and well control rules, create black oil fluid models and rock physics functions and submit the model to the simulators. The practical application of most of the available tools in Petrel used for a typical reservoir engineering workflow is discussed and illustrated in the exercises. The manual is structured in modules with relevant lessons and exercises to help practice the lessons learned in each module. Overall, preprocessing and post-processing of simulation data is done within the Petrel modeling environment.