Sweeping a wetting phase by non-wetting phase
Oil is non-wetting phase for the most non-petroleogenetic rocks and the initial saturation of rocks by oil is a drainage process under water sweeping
Fig. 1. Illustration of primary and secondary Drainage and Imbibition. |
See also
Physics / Fluid Dynamics / Percolation / Sweeping
[ Wettability ] [ Imbibition ]