Reservoir Engineering is a branch of petroleum engineering that focuses on the behavior of oil and gas reservoirs. It involves analyzing the physical and chemical properties of the reservoir rock and fluids to optimize the extraction of hydrocarbons. Engineers use various techniques, including computer simulations and mathematical models, to predict how fluids will flow through the reservoir over time. The primary goal of reservoir engineering is to maximize the recovery of oil and gas while minimizing costs. This includes designing effective drilling plans, implementing enhanced oil recovery methods, and managing reservoir pressure. By understanding the reservoir's characteristics, engineers can make informed decisions to improve production efficiency.