R-cluster analysis is applied to select fracture indexes of conventional well log and FMI log and to optimize the collection of fracture indexes.

• 在研究中,提取密度中子孔隙度差异指标和FMI测井裂缝参数指标,并采用R型聚类分析,对常规测井裂缝指标和FMI测井裂缝参数指标进行优化,形成了优化的裂缝指标集;