Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Sample</td><td class="align_center" rowspan="2">TOC (%)</td><td class="align_center" rowspan="2"><i>δ</i><sup>13</sup>C<sub>org</sub> (‰)</td><td class="align_center" colspan="6">Mineral composition (%)</td></tr><tr class="thead"><td class="align_center">Quartz</td><td class="align_center">Calcite</td><td class="align_center">Dolomite</td><td class="align_center">Pyrite</td><td class="align_center">Feldspar</td><td class="align_center">Clay minerals</td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td class="align_left">YY</td><td class="align_center">8.42</td><td class="align_center">-31.8</td><td class="align_center">65</td><td class="align_center">1</td><td class="align_center">1</td><td class="align_center">8</td><td class="align_center">11</td><td class="align_center">14</td></tr><tr><td class="align_left">GZ</td><td class="align_center">6.26</td><td class="align_center">-32.8</td><td class="align_center">15</td><td class="align_center">8</td><td class="align_center">60</td><td class="align_center">10</td><td class="align_center">3</td><td class="align_center">4</td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Geochemical data and initial mineralogical composition of the two shale samples.</div>

Geofluids

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Table 1

Table 1: Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions 

Table 1 | Pore Structure Alteration Characteristics of Different Mineralogical Composition Shale during Shale-Fracturing Fluid Physical-Chemical Interactions 