Permeability Characterization and Its Correlation with Pore Microstructure of Stress-Sensitive Tight Sandstone: Take Chang 6 in Ordos Basin for Example

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td class="align_left">Ions</td><td class="align_center">Na<sup>+</sup></td><td class="align_center">K<sup>+</sup></td><td class="align_center">Ca<sup>2+</sup></td><td class="align_center">Mg<sup>2+</sup></td><td class="align_center">HCO<sub>3</sub><sup>-</sup></td><td class="align_center">SO<sub>4</sub><sup>2-</sup></td><td class="align_center">Cl<sup>-</sup></td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td class="align_left">Concentration/(mg·L<sup>-1</sup>)</td><td class="align_center">8563</td><td class="align_center">94</td><td class="align_center">209</td><td class="align_center">52</td><td class="align_center">1486</td><td class="align_center">1800</td><td class="align_center">10799</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Composition of the formation brine.</div>

Geofluids

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Table 3

Table 3: Permeability Characterization and Its Correlation with Pore Microstructure of Stress-Sensitive Tight Sandstone: Take Chang 6 in Ordos Basin for Example 

Table 3 | Permeability Characterization and Its Correlation with Pore Microstructure of Stress-Sensitive Tight Sandstone: Take Chang 6 in Ordos Basin for Example 