Alkali Effect on Alkali-Surfactant-Polymer (ASP) Flooding Enhanced Oil Recovery Performance: Two Large-Scale Field Tests’ Evidence

<table class="table-group" id="tab20"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Block</td><td class="align_center">Input-output ratio</td><td class="align_center">ROI</td><td class="align_center">FIRR</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">SASP</td><td class="align_center">1 : 2.3</td><td class="align_center">12.9</td><td class="align_center">18.0</td></tr><tr><td class="align_left">WASP</td><td class="align_center">1 : 3.7</td><td class="align_center">19.1</td><td class="align_center">22.3</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Economical benefit comparison.</div>

Journal of Chemistry

tab20

Table 20

Table 20: Alkali Effect on Alkali-Surfactant-Polymer (ASP) Flooding Enhanced Oil Recovery Performance: Two Large-Scale Field Tests’ Evidence 