Abstract：Combining real research cases and according to main contents studied by sequence-stratigraphy, the paper probed the key techniques applied in sequence-stratigraphy analyses. Time-frequency analysis technique and forward and inversive modeling technique are applied in sequence-stratigraphic classification;advanced techniques such as wide band-constrained inversion,coherent data volume and 3-D visualisation etc. are applied in characteristic sequence-stratigraphy analysis,portraying carefully the characters of sequence-stratigraphic system:the key techniques such as wave geology and balanced geologic cross section etc. are adopted in sequence-stratigraphic cause of formation. Application of the above-mentioned approaches in real cases achieved tangible results.
