Hydrogeochemical Characteristics and Water–Rock Interactions of Coalbed-Produced Water Derived from the Dafosi Biogenic Gas Field in the Southern Margin of Ordos Basin, China

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">PC</td><td class="align_center" colspan="3">Rotated and squared loadings</td></tr><tr class="thead"><td class="align_center">Total</td><td class="align_center">Variance percentage (%)</td><td class="align_center">Cumulative ratio (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">PC1</td><td class="align_center">3.261</td><td class="align_center">32.61</td><td class="align_center">32.61</td></tr><tr><td class="align_left">PC2</td><td class="align_center">3.236</td><td class="align_center">32.36</td><td class="align_center">64.97</td></tr><tr><td class="align_left">PC3</td><td class="align_center">2.173</td><td class="align_center">21.73</td><td class="align_center">86.70</td></tr><tr><td class="align_left">PC4</td><td class="align_center">1.076</td><td class="align_center">10.76</td><td class="align_center">97.46</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Total variance explained by each principal component.</div>

Geofluids

tab5

Table 5

Table 5: Hydrogeochemical Characteristics and Water–Rock Interactions of Coalbed-Produced Water Derived from the Dafosi Biogenic Gas Field in the Southern Margin of Ordos Basin, China 

Table 5 | Hydrogeochemical Characteristics and Water–Rock Interactions of Coalbed-Produced Water Derived from the Dafosi Biogenic Gas Field in the Southern Margin of Ordos Basin, China 