Numerical Simulation of Time-Varying Characteristics in a High-Permeability Sandstone Reservoir: A Case of Gaoqian Southern Area

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Lithofacies</td><td class="align_center">Wettability before water flooding (wetting angle)</td><td class="align_center">Wettability after water flooding (wetting angle)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Fine sandstone facies</td><td class="align_center">Neutral (90°)</td><td class="align_center">Strong hydrophilic (51°)</td></tr><tr><td class="align_left">Middle sandstone facies</td><td class="align_center">Neutral-weakly hydrophilic (82°)</td><td class="align_center">Strong hydrophilic (43°)</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Changes of reservoir wettability before and after water flooding.</div>

Geofluids

tab6

Table 6

Table 6: Numerical Simulation of Time-Varying Characteristics in a High-Permeability Sandstone Reservoir: A Case of Gaoqian Southern Area 