Experimental Study on Medium Viscosity Oil Displacement Using Viscoelastic Polymer

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Displacement fluid</td><td class="align_center">Flow rate (PV/h)</td><td class="align_center">Oil recovery (%)</td><td class="align_center">Incremental oil recovery by elasticity (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Glycerin solution</td><td class="align_center" rowspan="2">1.0</td><td class="align_center">50.0</td><td class="align_center">—</td></tr><tr><td class="align_left">Viscoelastic polymer solution</td><td class="align_center">56.0</td><td class="align_center">6.0</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Displacement results of glycerin and viscoelastic polymer with the same viscosity (40 mPa·s).</div>

Geofluids

tab1

Table 1

Table 1: Experimental Study on Medium Viscosity Oil Displacement Using Viscoelastic Polymer 