Interpretational Applications of Spectral Decomposition in Identifying Minor Faults

At present, spectral decomposition is used in reservoir characterization and hydrocarbon detection. But there is very little literature on fault identification using spectral decomposition. In this paper, on the basis of the high-precision 3D seismic data from the Qiuling oil field, spectral decomposition is used for identifying minor faults. The phase tuning cube is used for interpreting fault planar variation and the common frequency cubes are used for describing the spatial features of faults. Integrating both the phase tuning cube and the common frequency improves the reliability of fault identification.