High Resolution Sequence Stratigraphy Analysis of Es_3~2 in Pucheng Oil Field,Dongpu Depress

Pucheng oil field is located in the Dongpu depress, Henan province. In this study, a method based on baselevel analysis for stratigraphy correlation in the development stage is provided. The characteristics of stratigraphic surface and stratigraphy sequence in the seismic, well log and cores are summarized. Four scales of sequence cycles are distinguished in the study area, including very short term cycle, short term one, middle term one and long term cycle. Long term cycle is corresponding to sub fan complex, and middle cycles to fan slove, and short one to fan lobe, which is the smallest units for adjusting in the production. In the study zone, 6 medium term and 27 short term cycles are distinguished and correlated.