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2 3号煤层斜率关联度计算样本

Table 2 Calculation sample of slope correlation degree of No.3 Coal Seam

样号 测试气量/ (m3·t-1) 深度曲线/ m 自然伽马/ API 自然电位/ mV 补偿密度/ (g·cm-3) 声波时差/ (μs·m-1) 补偿中子/ (V·V-1) 深电阻率/ (Ω·m) 浅电阻率/ (Ω·m) A1-1 17.32 972.94 52.96 134.34 1.21 395.9 0.47 11946 9024 A1-2 18.93 975.28 59.63 41.22 1.27 418.5 0.44 5121 3892 A1-3 15.90 976.00 45.51 42.10 1.20 415.1 0.46 5224 4563 ? ? A9-2 7.81 956.55 77.90 25.93 1.38 411.0 0.44 1514 88