从钻井、测井层序地层学研究入手 ,以三维地震勘探资料为基础 ,研究黄骅坳陷北部新港地区尚未开发的潜在有利油气储集层系———沙三段的层序地层特征 .三维地震层序地层学分析将沙三段分为上中下 3个层序 ,3个层序内均有较厚的低位扇发育 ,上覆高位体系域可形成良好盖层 ,内部储盖组合发育十分完好的沙三段 ,可以形成较好的油气富集 . Starting from the study of drilling and logging sequence stratigraphy, based on the three-dimensional seismic exploration data, the stratigraphic sequence of the 3rd member of the 3rd member of the potential favorable oil and gas reservoir system in the northern part of Huanghua Depression Seismic sequence stratigraphy analysis divides the third member into three sequences, including upper and lower sequences, thicker lower fan in all three sequences, good caprock in the overlying upper system tract, and internal reservoir-cap combination development Very good sand third, can form a better oil and gas enrichment.