Oxygen Transport Under Combustion Conditions in a Fracture-Porous Medium System - Selected Topics of Computational and Experimental Fluid Mechanics - page 340

Fig. 4 Oxygen and coke concentration profiles as function of time and fracture width (Pe f = 1)
consumption and (2) the oxygen transport from the fracture to the porous zone. These
conclusions are explained below.
As oxygen flow rate increases, coke is faster consumed mainly by the increasing
oxygen availability that takes place by two reasons: (1) the amount of oxygen, enter-
ing to the porous zone through the inlet boundary, is increased and, (2) the amount of
oxygen, entering from the fracture to the matrix, is considerably augmented. On the
other hand, as the fracture width increases, the amount of oxygen being transported
through the fracture is augmented. Then, as the oxygen storage in the fracture is
increased, the oxygen flow from the fracture to the matrix is enhanced.
References
Awoleke OG, Castanier LM, Kovscek AR (2010) An experimental investigation of in-situ combus-
tion in heterogeneous media. In: Canadian unconventional resources and international petroleum
conference. No. 137608-MS. Canadian Society for Unconventional Gas/Society of Petroleum
Engineers, Calgary, Alberta, Canada, 19-21 October 2010