| | | | Upstream well () |
Downstream well () | WTS well () |
Schellmann benchmarks (1980) | Parameters | Unit | Limit of detection | Average | Standard deviation | Average | Standard deviation | Average | Standard deviation | Shale () | Sandstones () |
| Organic C | mg/kg | 0.06 | 1,030 | 900 | 800 | 1130 | 7,830 | 16,420 | | | Organic matter | g/kg | 0.1 | 1.76 | 1.51 | 1.38 | 1.94 | 13.51 | 28.34 | | | CEC | cmolc/kg | 0.02 | 2.46 | 0.38 | 2.30 | 0.30 | 3.09 | 2.80 | | | Caexchangeable | cmolc/kg | 0.01 | 0.1311 | 0.2769 | 0.2551 | 0.6158 | 0.7648 | 1.8697 | | | Mgexchangeable | cmolc/kg | 0.01 | 0.2692 | 0.1634 | 0.2976 | 0.1720 | 0.3288 | 0.1708 | | | Naexchangeable | cmolc/kg | 0.0004 | 0.0019 | 0.0039 | 0.0027 | 0.0071 | 0.0080 | 0.0234 | | | Kexchangeable | cmolc/kg | 0.0004 | 0.0916 | 0.0334 | 0.0953 | 0.0319 | 0.0882 | 0.0222 | | | Potential acidity | cmolc/kg | 0.05 | 1.97 | 0.47 | 1.65 | 0.64 | 1.90 | 0.74 | | | Alexchangeable | cmolc/kg | 0.05 | 0.5944 | 0.2814 | 0.4165 | 0.1899 | 0.4368 | 0.1829 | | | pH | | | 6.09 | 0.11 | 5.70 | 0.08 | 5.50 | 0.31 | | | Al2O3 | mg of Al2O3/kg | 529 | 191,000 | 40,300 | 166,820 | 32,964 | 174,640 | 32,075 | 269,000 | 106,000 | CaO | mg of CaO/kg | 112 | 2,500 | 1,100 | 2,930 | 678 | 1,560 | 795 | 1,200 | 1,100 | TiO2 | mg of TiO2/kg | 28 | 13,000 | 3,000 | 10,780 | 2,195 | 9,490 | 1,208 | 13,600 | 8,200 | Na | mg of Na/kg | 4 | 213 | 233 | 130 | 22 | 183 | 167 | 1,400 | 3,560 | Mn | mg of Mn/kg | 0.03 | 42.69 | 15.84 | 498.77 | 302.17 | 235.97 | 103.28 | 540 | 1,630 | Fe2O3 | mg of Fe2O3/kg | 41 | 104,500 | 72,800 | 133,530 | 50,492 | 93,910 | 19,093 | 197,000 | 163,000 | SiO2 | mg of SiO2/kg | 169 | 579,700 | 142,900 | 580,000 | 127,387 | 584,150 | 145,370 | 392,000 | 637,000 | MgO | mg of MgO/kg | 166 | 4,200 | 1,900 | 8,590 | 2,818 | 2,730 | 988 | 2,500 | 2,600 | Co | mg of Co/kg | 1.1 | 6.81 | 6.53 | 15.68 | 8.76 | 14.07 | 5.34 | 13 | 38 | K | mg of K/kg | 4 | 23,215 | 19,724 | 30,853 | 22,694 | 18,497 | 12,138 | 3,490 | 4,650 | Cu | mg of Cu/kg | 0.097 | 25.30 | 18.40 | 27.36 | 7.20 | 16.93 | 5.11 | 40 | 37 | Zn | mg of Zn/kg | 0.43 | 32.59 | 16.69 | 54.03 | 18.75 | 43.42 | 7.67 | 25 | 10 | Ba | mg of Ba/kg | 0.13 | 166.09 | 37.19 | 264.71 | 81.20 | 162.12 | 28.94 | 122 | 295 | Pb | mg of Pb/kg | 1 | 29.22 | 11.28 | 22.55 | 9.17 | 13.43 | 10.70 | 38 | 48 | Y | mg of Y/kg | 0.22 | 21.27 | 3.92 | 19.10 | 3.06 | 20.04 | 2.10 | 21 | 12 | Sr | mg of Sr/kg | 0.99 | 44.19 | 27.30 | 47.80 | 5.98 | 36.39 | 12.01 | 34 | 26 | Pavailable | mg of P/kg | 0.002 | 0.52 | 0.34 | 1.54 | 0.94 | 7.42 | 20.41 | | | Znavailable | mg of Zn/kg | 0.43 | 0.33 | 0.55 | 0.31 | 0.32 | 0.59 | 1.05 | | | Mnavailable | mg of Mn/kg | 0.03 | 1.17 | 1.44 | 1.97 | 2.08 | 15.94 | 44.80 | | | Cuavailable | mg of Cu/kg | 0.097 | 0.49 | 0.42 | 0.50 | 0.16 | 0.40 | 0.09 | | | Pbavailable | mg of Pb/kg | 0.01 | 2.07 | 0.32 | 1.47 | 0.30 | 2.29 | 0.70 | | | Be | mg of Be/kg | 0.74 | 1.40 | 0.45 | 2.30 | 0.55 | 2.12 | 0.53 | | | Mnavailable/Mn | % | | 2.44 | 1.72 | 0.99 | 2.24 | 3.66 | 8.69 | | | Cuavailable/Cu | % | | 2.68 | 2.93 | 1.99 | 0.95 | 2.55 | 1.00 | | | Pbavailable/Pb | % | | 8.24 | 3.73 | 7.69 | 3.48 | 29.84 | 19.70 | | | Znavailable/Zn | % | | 0.88 | 0.97 | 0.70 | 0.76 | 1.47 | 2.71 | | |
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