Experimental study of the effects of hydraulic gradient and injected-gas flow rate on fragmentation in porous media

This work presents an experimental study of the displacement of a gas phase (air) injected in a porous medium initially saturated with a flowing liquid phase (oil). An etched bidimensional pore-network micromodel was used as a porous medium. Flow photos at different times until breakthrough indicate...

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Bibliographic Details
Published in:Journal of petroleum science & engineering 2007-11, Vol.59 (3), p.250-256
Main Authors: Baouab, Z., Najjari, M., Ouerfelli, H., Nasrallah, S. Ben
Format: Article
Language:English
Subjects:
Applied sciences
Breakthrough
Crude oil, natural gas and petroleum products
Energy
Exact sciences and technology
Fuels
Oil displacement
Pore-network micromodel
Two-phase flow
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Summary:This work presents an experimental study of the displacement of a gas phase (air) injected in a porous medium initially saturated with a flowing liquid phase (oil). An etched bidimensional pore-network micromodel was used as a porous medium. Flow photos at different times until breakthrough indicate that the gas phase may be fragmented on disconnected blobs. Fragmentation depends on the oil and gas flow rates and the oil viscosity.
ISSN:0920-4105
1873-4715
DOI:10.1016/j.petrol.2007.04.009