Methodology for Water Injection Strategies Planning Optimization Using Reservoir Simulation

The decision making process related to the recovery strategy during the development of a petroleum field is very complex because it involves a great amount of money and parameters and it is necessary to consider the risk associated with geological, economical and technological uncertainties. An adequate choice of production strategy provides a satisfactory reservoir performance, improving the field recovery. Therefore, it is very important to have methodologies (1) to improve the quality of the results and (2) to accelerate the process. This paper shows some optimization procedures applied to producti on strategy planning process. The procedure was developed for several types of reservoirs and includes producer and injector vertical wells. Furthermore, it uses reservoir simulation to improve the reliability of the prediction of production performance. The procedure was developed in a flexible way, allowing the application to different situations. The results of some of these cases are presented.