Abstract: Regarding the difficulties in identifying the sandy conglomerate and high-resistivity layers in the Ⅲ oil member of the lower section of lower Ganchaigou formation in the Block Qie12 of Kunbei oilfield, Qaidam basin, using the data of core, thin section, formation test, logging and a geology-logging combined analysis method, the paper discusses the logging responses of rock debris content and its quantitative calculation methods, and then applies these methods into identifying sedimentary source orientation, major distributary channel and high-resistivity aquifer and lithology-induced induction resistivity correction in high-resistivity layers. Log responses are related to debris contents, based on which, an equation of debris content calculated from interval transit time and induction resistivity, and an induction resistivity correction equation have been established based on the relationship between interval transit time and induction resistivity variation. The high induction resistivity after correction can be used to solve the problems in identifying high-resistivity aquifer and correcting the oil saturation errors caused by high-resistivity debris.