Laterolog (DLL) logging, utilizing deep and shallow detection depths, is instrumental in identifying and evaluating complex reservoirs such as coal measures. It effectively captures the resistivity contrast between the virgin zone and the invaded zone, providing crucial data for fluid identification, reservoir quality assessment, and fracture system characterization. However, the DLL response in practice is a complex function of coupled factors including borehole environment and bed thickness. E
Based on numerical simulation, research on the characteristics and patterns of dual laterolog resistivity responses in fractured coal seams
Jianwei Fu
