Research Article
Evaluation of Coalbed Methane Content by Using Kernel Extreme Learning Machine and Geophysical Logging Data
Table 1
CBM content results of 12 sets of core coal samples from the 3# coal seam in well A6.
| Sample | Desorption sample mass (g) | Desorption gas content (cm3) | Lost gas content (cm3) | Residual sample mass (g) | Measured residual gas content (cm3) | Vg (cm3·g-1) |
| A6-3-1 | 1100 | 12366.44 | 839.52 | 400 | 124.31 | 12.32 | A6-3-2 | 1100 | 23380.27 | 1514.3 | 400 | 124.37 | 22.94 | A6-3-3 | 1250 | 26864.66 | 1428.6 | 400 | 139.2 | 22.98 | A6-3-4 | 1500 | 27967.59 | 821.99 | 400 | 129.26 | 19.52 | A6-3-5 | 1200 | 24247.22 | 526.38 | 400 | 134.32 | 20.98 | A6-3-6 | 1100 | 20070.15 | 934.76 | 400 | 159.09 | 19.49 | A6-3-7 | 1000 | 18825.87 | 918.46 | 400 | 144.2 | 20.1 | A6-3-8 | 1450 | 28953.87 | 1220.8 | 400 | 134.25 | 21.15 | A6-3-9 | 1400 | 23171.6 | 858.72 | 400 | 159.12 | 17.56 | A6-3-10 | 1350 | 20648.98 | 607.49 | 400 | 139.13 | 16.09 | A6-3-11 | 1100 | 21552.73 | 818.82 | 400 | 139.28 | 20.69 | A6-3-12 | 1100 | 18365.28 | 754.25 | 400 | 149.14 | 17.75 |
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