Publication de 12 numéros par an
ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508
Indexed in
Dynamics of Pulsed Two-Phase Flow in Porous Media: Bead Pack and Core Plug Experiments
RÉSUMÉ
We report experimental findings comparing the dynamics of two-phase flow under continuous and pulsed injection in porous media. Visualization experiments are performed in homogeneous and layered bead packs, and additional tests on selected core plugs are used to study the displacement process. The effect of oil viscosity, bead size, wettability, and pulsing period is addressed. It is found that the pulsed injection method is able to displace more efficiently the resident fluids in the porous formation, leading to higher fluid recovery with a more stable displacement front. Wettability condition and pulsing period are key parameters in the process. The method is more beneficial in water wet formations. The pulsed method also allows reaching residual oil saturation conditions faster than with the conventional continuous approach, an interesting result for oil production and hydrological applications.