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Sea region surrounded by piles near the oil-generating depression , rich hydrocarbon resources , Neogene Guantao is the main oil-bearing area , the main oil-bearing reservoir is a typical alluvial - fluvial reservoirs , establish the appropriate sequence stratigraphy research methods for evaluating and predicting alluvial - fluvial reservoirs is of great significance . In this paper, high resolution sequence stratigraphy based on the pile Sea region Neogene sequence stratigraphy carried out classification and correlation . From the core ( lithology ) , logging and seismic data base level cycle identification , pile Sea region Neogene Guantao Formation can be divided into a long-term base level cycles and five mid- level cycles , the cycle identification and divided on the basis of established pile sea region Neogene resolution sequence stratigraphic framework , and the establishment of the pile sea region alluvial - fluvial three kinds of sequence stratigraphic model . By sedimentary facies analysis , a clear pile Sea region Neogene evolution of sedimentary systems , the establishment of Neogene sequence stratigraphy depositional model . Neogene Guantao next paragraph in the whole range of Tianpingbuqi sedimentary basins , and the upper house Minghuazhen whole for the drape -style deposits. Neogene mainly developed braided river ( near the source and far source ) , low- sinuosity rivers and meandering river depositional system . Sea region from the pile , reservoir , lids, rings, transportation, insurance and other conditions of accumulation reservoir analysis , reservoir type pile Sea region are mainly structural , lithological two categories , Neogene hydrocarbon accumulation by structures , rock sex , reservoir and cap combination of multiple factors such fault seal control , summed up the oil and gas enrichment law , put forward the favorable exploration direction .
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