Table 1.
Chemical properties of water samples obtained from Luliang reservoir
| Environmental characteristic | Lu3064 | Lu3084 | Lu3065 | Lu3096 | Average |
|---|---|---|---|---|---|
| Well type | Injection well | Production well | – | ||
| Water cut, % | – | – | 82% | 85% | – |
| pH | 5.5–6.0 | 5.5–6.0 | 5.5–6.0 | 5.5–6.0 | 5.5–6.0 |
| Salinity | 12478 | 10635 | 10177 | 9214 | 10700 |
 , mg/L |
<0.1 | <0.1 | <0.1 | <0.1 | <0.1 |
 , mg/L |
<0.1 | <0.1 | <0.1 | <0.1 | <0.1 |
 , mg/L |
4.9 | 116.2 | 14.0 | 23.1 | 39.55 |
| Cl−, mg/L | 6640 | 5640 | 5050 | 4600 | 5482.5 |
| Na+, mg/L | 5460 | 4460 | 4759 | 4516 | 4798.5 |
| K+, mg/L | 56.8 | 64.9 | 44.1 | 49.3 | 53.8 |
| Ca2+, mg/L | 284.7 | 332.1 | 281.9 | 181.6 | 299.6 |
| Mg2+, mg/L | 31.6 | 21.7 | 27.8 | 26.03 | 26.8 |
Detection limit is 0.1 mg/L.