Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Simulation of In-situ Combustion Process in Laboratory Scale
Submission Author:
Lucas Henrique Pagoto Deoclecio , ES , Brazil
Co-Authors:
Filipe Arthur Firmino Monhol, Ana Paula Meneguelo, Lucas Henrique Pagoto Deoclecio
Presenter: Lucas Henrique Pagoto Deoclecio
doi://10.26678/ABCM.COBEM2017.COB17-0860
Abstract
In-situ combustion is a good alternative for oil recovery in heavy oil reservoirs, since it has a high recovery factor and low operating cost. However, its degree of complexity is high. Therefore, the objective of this work was to simulate the in-situ combustion process by means of a thermally isolated combustion reactor in order to obtain information about the combustion process. The temperature of the reactive porous medium and the rate of fuel consumption inside the equipment were monitored. A mixture of similar composition was used to simulate the composition inside the reservoir. Based on literature data, the airflow rate was set at a Darcy velocity of approximately 0.05 m/s. The average peak temperature obtained was 847°C, what indicates that high temperature carbon oxidation happened. The velocity of the combustion front was 7.5 mm/min, considered high for similar mixtures proposed by other authors. The reaction zones were also defined and measured and it was observed that the oxidation of the fixed carbon begin 28 mm before the front temperature peak. As a result, it was confirmed that the combustion front has behaved in a stable and self-sustaining way.
Keywords
reactive porous medium, heavy oil recovery, In-situ combustion
