Experimental Study on the Effects of Stress Variations on the Permeability of Feldspar-Quartz Sandstone

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td class="align_left">Sample</td><td class="align_center">Quartz</td><td class="align_center">Plagioclase</td><td class="align_center">K-feldspar</td><td class="align_center">Calcite</td><td class="align_center">Biotite</td><td class="align_center">Kaolinite</td><td class="align_center">Illite/smectite</td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td class="align_left">S1</td><td class="align_center">16</td><td class="align_center">46</td><td class="align_center">29</td><td class="align_center">1</td><td class="align_center">3</td><td class="align_center">2</td><td class="align_center">3</td></tr><tr><td class="align_left">S2</td><td class="align_center">10</td><td class="align_center">12</td><td class="align_center">42</td><td class="align_center">7</td><td class="align_center">4</td><td class="align_center">5</td><td class="align_center">20</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mineralogical compositions of the samples (%).

Geofluids

tab1

Table 1

Table 1: Experimental Study on the Effects of Stress Variations on the Permeability of Feldspar-Quartz Sandstone 