Evaluation of Coalbed Methane Content by Using Kernel Extreme Learning Machine and Geophysical Logging Data

<div>Cross plot experimental data: (a) relationship between clay mineral content and GR; (b) relationship between ash content and laboratory apparent density of samples under air drying condition.</div>

Geofluids

fig11

Figure 11

Figure 11: Evaluation of Coalbed Methane Content by Using Kernel Extreme Learning Machine and Geophysical Logging Data 