Sedimentary Characteristics of the Second Member of Baigang Formation in the Eastern Segment of the North Steep Slope in Eastern Sag of Baise Basin

Based on data of the well logging,drilling core,thin section microstructure,seismic attributes,the authors analyse the petrology combination,sedimentary structure,section structure,biological fossil,logging facies and seismic facies of the second Member of Baigang Formation.All the results suggest that the sedimentary facies of fan delta and the lake should be developed on the north steep slope in eastern sag of Baise basin.As a typical sedimentary facies of steep slope,the fan deltas mainly distribute in the northwest and northeastern of the research area.