Logging Lithology Discrimination with Enhanced Sampling Methods for Imbalance Sample Conditions
Jingyue Liu,
Fei Tian,
Aosai Zhao
et al.
Abstract:In the process of lithology discrimination from a conventional well logging dataset, the imbalance in sample distribution restricts the accuracy of log identification, especially in the fine-scale reservoir intervals. Enhanced sampling balances the distribution of well logging samples of multiple lithologies, which is of great significance to precise fine-scale reservoir characterization. This study employed data over-sampling and under-sampling algorithms represented by the synthetic minority over-sampling te… Show more
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