The high-frequency sequence framework of "seismic scale" is the fundament for fine description of structures and reservoirs, establishing high-resolution sequence framework under the guidance of high-resolution sequence stratigraphy theory (Figure 1). Synthesizing core, logging and seismic data, utilizing seismic sedimentology and sequence stratigraphy theory to analyze clastic transport system, determine the type and distribution of sedimentary facies (Figure 2), and establish the foundation for the subsequent study of sedimentary microfacies and reservoir prediction. Under the high-resolution sequence stratigraphic unit, carry out the study of micro-geomorphology and fault-controlled dispersion system, and predict the distribution of sedimentary microfacies at the level of single sand body (Figure 3).
Figure 1 Regional large section anatomy- Paleogeomorphic restoration- Comprehensive construction of sequence framework based on regional sea level change and core logging
Figure 2 Integrated study of sedimentary facies using core data, logging data, seismic facies and seismic attributes
Figure 3 Based on the microgeomorphology description, the sedimentary microfacies are comprehensively studied by using core, logging data and seismic sedimentary analysis technology
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