基于沉积微相特征挖掘的随机森林岩石相测井识别方法——以新场地区须家河组二段致密砂岩为例

何小龙, 张兵, 杨凯, 何一帆, 李琢

A log-based lithofacies identification method based on random forest and sedimentary microfacies characteristics:A case study of tight sandstones in the second member of the Xujiahe Formation in the Xinchang area

HE Xiao-Long, ZHANG Bing, YANG Kai, HE Yi-Fan, LI Zhuo

图8 SHAP模型重要性分析(a)及CL562井岩石相识别结果(b)

Fig.8 SHAP model importance analysis(a) and CL562 well lithofacies prediction results(b)