用地球物理测井资料预测煤层气含量——基于斜率关联度—随机森林方法的工作案例

郭建宏, 张占松, 张超谟, 周雪晴, 肖航, 秦瑞宝, 余杰

The exploration of predicting CBM content by geophysical logging data: A case study based on slope correlation random forest method

GUO Jian-Hong, ZHANG Zhan-Song, ZHANG Chao-Mo, ZHOU Xue-Qing, XIAO Hang, QIN Rui-Bao, YU Jie

表4 3号煤层测试集预测结果

Table 4 Prediction results of No.3 coal seam test set

测试气量/(m3·t-1) 预测气量/(m3·t-1) 绝对误差/(m3·t-1) 相对误差/% A1-2 18.93 16.67 2.26 0.12 A7-5 23.53 18.93 4.60 0.20 A7-3 18.83 19.90 1.07 0.06 A7-2 18.91 19.19 0.28 0.01 A2-6 19.07 17.66 1.41 0.07 A8-5 22.44 20.79 1.65 0.07 A6-2 15.14 17.77 2.63 0.17 A4-2 17.76 19.08 1.32 0.07 A3-1 15.96 20.59 4.63 0.29 A4-3 18.77 18.10 0.67 0.04 平均值 2.05 11.10