bachelorThesis
Análise de injeção alternada de água e CO2 (WAG-CO2) em reservatórios semelhantes aos do pré-sal brasileiro
Fecha
2017-11-24Registro en:
HERMES, Bernardo. Análise de Injeção Alternada de Água e CO2 (WAG-CO2) em reservatórios semelhantes aos do pré-sal brasileiro. 2017.2 f. TCC (Graduação) - Curso de Engenharia de Petróleo, Universidade Federal do Rio Grande do Norte, Natal, Brasil, 2017.
Autor
Hermes, Bernardo
Resumen
The alternating injection of water and carbon dioxide (WAG-CO2) enhanced oil recovery method utilizes the injection of water and gas, normally miscible to improve production and oil recovery factor. With the discovery of reservoirs in Brazilian pre-salt layer with large reserves of light oil volumes (between 28 and 30 ° API), a high volume of gas and containing high CO2 content (8 - 12%), this gas has stood out. This is a challenge for sustainable production, given that it is a greenhouse gas. This study aimed to analyze the WAG-CO2 method compared to the injection of water and the injection of CO2 miscible. The simulation for different models was made through the GEM (Generalized Equation-of-State Model Compositional Reservoir Simulator) CMG (Computer Modeling Group) in computational simulation, modeling a lighter fluid and a reservoir with characteristics similar to Brazilian pre -salt, then different models of injection were simulated changing and adjusting operating parameters such as flow injection, number of wells, order of injection. The results provided a broad view of the behavior of this method and its influence on the oil recovery factor, which showed an increase of approximately eighty percentage points.