Numbering | Sample name | Residue content, mg/L |
1 | 0.1% JHFR-2D | 0 |
2 | Clean slippery water fracturing fluid | 0 |
3 | 0.1% A agent | 60.00 |
4 | Oil-based emulsion slippery water fracturing fluid | 12.99 |
5 | Guar gum fracturing fluid | 99.42 |