Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Coal samples</td><td class="align_center">XG-1</td><td class="align_center">XG-2</td><td class="align_center">HS-1</td><td class="align_center">HS-2</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Porosity/%</td><td class="align_center">10.2827</td><td class="align_center">10.1198</td><td class="align_center">19.7656</td><td class="align_center">19.2107</td></tr><tr><td class="align_left">Permeability/mD</td><td class="align_center">0.7543</td><td class="align_center">0.6909</td><td class="align_center">10.1325</td><td class="align_center">8.7613</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The initial porosity and permeability for coal samples.</div>

Geofluids

tab2

Table 2

Table 2: Experimental Study on the Fractal Features and Permeability Characteristics of Low Metamorphic Coal Pore Structure under Thermal Damage 