Abstract: Based on the seismic attribute-geologic analysis, fault and shale seismic data analysis, integrated with output from available wells, the oil-bearing area can be generally determined. The relationship between seismic attribute and oil-bearing property can be estabi shed based on multi attribute optimized parameters. By using several evaluating models, information synthesis, clustering and multi-parameter classification, the optimal target with various character fields can be reached, thus decreasing the multi solution possibility, more precisely determining the range of oil layer distribution. For adjacent sand body without drilling data, the most possible oil-bearing intervals can be deduced by comparison.

Key words: Tuha basin, seismic attribute, information, analysis, oil-bearing property, detection