Research Article
Fault-Affected Fluid Circulation Revealed by Hydrochemistry and Isotopes in a Large-Scale Utilized Geothermal Reservoir
Table 1
Isotopic and chemical data at the Xiongxian and Rongcheng geothermal sites.
| | Sample label | WD (m) | pH | (°C) | EC (μs/cm) | Li (mg/L) | Na (mg/L) | K (mg/L) | Ca (mg/L) | Mg (mg/L) | SiO2 (mg/L) | B (mg/L) | Cl (mg/L) | SO4 (mg/L) | HCO3 (mg/L) | δ18O (‰) | δ2H (‰) | δ13C (‰) | 14C (pmc) | 81Kr (pm Kr) |
| | XH01 | 1500 | 8.0 | 61.6 | 4730 | 1.75 | 821.0 | 52.5 | 44.8 | 30.9 | 31.5 | 1.80 | 1129.0 | 1.0 | 695.0 | -8.5 | -73 | -5.3 | | | | XH02 | 1500 | 8.0 | 63.5 | 4570 | 1.60 | 822.0 | 48.3 | 48.7 | 20.4 | 37.1 | 4.68 | 1129.0 | 1.2 | 658.0 | -8.5 | -73 | -6.0 | | | | XH03 | 950 | 8.0 | 67.3 | 4780 | 1.59 | 858.0 | 52.7 | 59.5 | 23.5 | 34.1 | 4.26 | 1121.0 | 9.7 | 684.0 | -8.6 | -73 | | | | | XH04 | 1500 | 7.5 | 71.1 | 4660 | 1.58 | 852.0 | 48.4 | 48.4 | 19.6 | 37.3 | 3.32 | 1134.0 | 0.9 | 666.0 | -8.4 | -73 | | | | | XH05 | 1800 | 8.0 | 72 | 4690 | 1.66 | 812.0 | 48.8 | 45.5 | 20.9 | 37.9 | 5.10 | 1106.0 | 2.4 | 668.0 | -8.4 | -73 | | | | | XH06 | 1600 | 8.0 | 74.6 | 4640 | 1.71 | 871.0 | 53.9 | 49.7 | 23.2 | 38.8 | 5.10 | 1140.0 | 1.8 | 663.0 | -8.5 | -73 | -7.7 | | | | XH07 | 1700 | 8.0 | 80.1 | 4630 | 1.74 | 870.0 | 52.2 | 51.0 | 17.7 | 46.1 | 5.27 | 1090.0 | 3.4 | 636.0 | -8.5 | -73 | -8.1 | | | | XH08 | 1600 | 7.0 | 76.2 | 4400 | 1.53 | 870.0 | 53.2 | 50.4 | 19.9 | 42.2 | 5.09 | 1141.0 | 5.2 | 645.0 | -8.5 | -72 | | | | | XH09 | 1000 | 7.0 | >60 | 4700 | 1.67 | 929.0 | 47.7 | 42.7 | 21.3 | 40.5 | 4.61 | 1284.0 | 0.8 | 487.0 | -8.9 | -74 | -7.5 | | | | RH01 | 1028 | 8.0 | 56 | 4270 | 1.05 | 769.0 | 40.0 | 61.0 | 25.7 | 31.5 | 2.12 | 1069.0 | 1.8 | 677.0 | -8.6 | -73 | -8.9 | | | | RH02 | 1851 | 7.0 | 48.5 | 3900 | 1.25 | 692.0 | 36.9 | 55.2 | 25.9 | 27.2 | 4.44 | 941.0 | 2.7 | 658.0 | -8.6 | -73 | | | | | XC01 | 200 | 7.0 | <20 | 687 | 0.01 | 119.0 | 0.4 | 20.1 | 10.1 | 13.2 | 0.04 | 54.0 | 55.3 | 249.0 | -10.6 | -80 | | | | | XC02 | 200 | 6.5 | <20 | 890 | <0.01 | 114.0 | 0.4 | 10.4 | 4.3 | 12.5 | 0.04 | 35.0 | 35.3 | 236.0 | -10.8 | -82 | | | | | XC03 | 200 | 6.5 | <20 | 567 | <0.01 | 113.0 | 0.6 | 12.0 | 3.9 | 12.8 | 0.04 | 33.0 | 32.5 | 236.0 | -10.9 | -81 | | | | | XC04 | 200 | 6.5 | <20 | 556 | <0.01 | 85.9 | 0.6 | 19.5 | 6.8 | 13.4 | 0.01 | 41.0 | 35.6 | 206.0 | -11.1 | -83 | -13.1 | | | | XC05 | 200 | 7.0 | <20 | 424 | <0.01 | 84.1 | 0.5 | 10.4 | 3.3 | 13.2 | 0.03 | 15.0 | 32.2 | 194.0 | -11.1 | -84 | | | | | XC06 | 200 | 7.0 | <20 | 488 | <0.01 | 85.4 | 0.4 | 9.5 | 3.1 | 12.9 | 0.03 | 18.0 | 31.8 | 193.0 | -11.3 | -84 | | | | | XC07 | 200 | 6.5 | <20 | 865 | 0.01 | 127.0 | 1.3 | 33.0 | 10.9 | 13.3 | 0.03 | 133.0 | 53.4 | 210.0 | -10.9 | -82 | | | | | XC08 | 200 | 7.0 | <20 | 729 | 0.01 | 117.0 | 0.7 | 28.0 | 9.4 | 13.7 | 0.04 | 85.0 | 52.1 | 223.0 | -11.1 | -83 | | | | | XC09 | 300 | 6.5 | <20 | 360 | <0.01 | 53.2 | 1.0 | 15.0 | 7.0 | 13.5 | 0.02 | 6.0 | 21.9 | 194.0 | -11.3 | -82 | -13.1 | | | | XC10 | 60 | 7.0 | <20 | 1001 | 0.01 | 90.8 | 0.5 | 44.6 | 56.1 | 16.1 | 0.13 | 56.0 | 73.7 | 493.0 | -9.7 | -70 | | | | | XC11 | 80 | 6.5 | <20 | 750 | <0.01 | 71.2 | 0.5 | 45.0 | 39.2 | 15.9 | 0.12 | 13.0 | 25.1 | 467.0 | -8.9 | -66 | | | | | XC12 | 280 | 6.0 | <20 | 325 | <0.01 | 35.6 | 0.9 | 24.4 | 9.8 | 16.9 | 0.03 | 2.0 | 9.2 | 212.0 | -10.6 | -76 | | | | | XC13 | 100 | 6.5 | <20 | 730 | 0.01 | 28.3 | 1.6 | 68.1 | 49.2 | 20.6 | 0.06 | 57.0 | 33.0 | 372.0 | -8.5 | -62 | -17.1 | | |
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Note: WD represents well depth.
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