Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
ROCK OIL RESERVOIR STRUCTURE INFLUENCE ON THE FLAME STABILITY OF THE IN-SITU COMBUSTION RECOVERY METHOD
Submission Author:
Antônio Carlos Barbosa Zancanella , ES
Co-Authors:
Lucas Henrique Pagoto Deoclecio, Filipe Arthur Firmino Monhol, Antônio Carlos Barbosa Zancanella
Presenter: Walber Ronconi dos Santos
doi://10.26678/ABCM.COBEM2019.COB2019-0063
Abstract
The world heavy oils reserves are abundant, making it an important source of energy. The in-situ combustion oil recovery method consists in using the available energy inside the reservoir, by means of burning a portion of the oil, to reduce the oil viscosity, increasing its mobility, unlike conventional methods that inject hot fluids for this purpose. The goal of this work was to experimentally investigate the reactive porous bed composition (granulometry and fuel concentration) influence on flame stability, and consequentially on the in-situ combustion recovery method applicability. The tests were carried out in a single-dimensionally thermal insulated reactor with a simulated fuel composed of sand (inert material) and charcoal (fixed carbon). The 2k factorial design tool was employed to assess each factor influence on the flame stability parameters: bed capacity of sustaining the flame, reached temperatures, average velocity and reaction zones size. The granulometry and fuel concentration were varied in two levels, 180 to 850 μm and 850 to 1700 μm, and 3.5% and 7.0%, respectively. The results showed that the combustion fronts were self-sustaining and that an increase in fuel concentration and a reduction in porous size tended to increase the maximum and average temperature, the front stability and recovery of oil.
Keywords
Enhanced oil recovery, Heavy oils, reactive porous media, In-situ combustion, factorial experiment 2k
