Abstract：The bedrock reservoirs in the study area is metamorphic rock with complex lithology. Bedrock lithology prediction using logging data has become a technical problem that needs to be solved urgently. In this paper, the lithology of bedrock is analyzed and classified based on the lithology of logging interpretation. In combination with the intersection analysis of various logging curves, the logging curves sensitive to the response characteristics of different bedrock lithology are found. According to the changes of key logging parameters of different lithology in the intersection diagram, the logging response areas of different lithology are given, and then different lithology is distinguished. Finally, the pre stack and post stack multi-attribute inversion technology is used to identify bedrock lithology.
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