Análisis de la presión de yacimiento e intrusión de agua en la arenisca Napo M-1 del campo Fanny-Dorine

Abstract

The pressure behavior in the Napo M-1 sandstone of the Fanny-Dorine field, located in Ecuador’s Oriente basin, is important to describe the reservoir characterization and to predict its development. Based on this, the present work has been done, collecting data from both production and well tests taken during the reservoir production history. This allowed to represent in an isobaric map the reservoir pressure evolution until present. As well as to determine the origin of the water intrusion and to know if the sand is totally communicated or there are permeability barriers that impide their vertical communication. This work also proposes the feasibility analysis to convert producing wells to water injectors in depleted areas. This would maintain static bottomhole pressure and increase oil production. The simulation shows favorable results both in hydrocarbon production and in economic revenues. The comparative study shows that the field presents barriers that restrict vertical flow. Since it provides a better match with the field reality than the geological concept currently used.