【摘要】 依据地震、测井及岩心资料,应用高分辨率层序地层学原理对三肇凹陷白垩系姚一段葡萄花油层浅水三角洲相进行层序地层学研究,建立高分辨率层序地层格架。结果表明:姚一段葡萄花油层对应于长期基准面上升半旋回,相当于1个完整的中期基准面旋回,可进一步划分为8个短期基准面旋回;葡萄花油层的地层发育模式为自下而上逐层尖灭导致地层自北向南减薄;平行物源方向的等时对比应遵循"界面(冲刷面)—岩石—界面(沉积间断面)"的对比原则,而垂直物源方向的等时对比应遵循"岩石—界面"的地层对比原则。更多还原

【Abstract】 According to the data of seismic,well logging and cores,the research of shallow delta sequence stratigraphy of Putaohua oil-bearing layer of member 1 of Yaojia formation of Cretaceous in Sanzhao sag was carried out,and a high-resolution sequence stratigraphic framework was established.The results show that Putaohua oil-bearing layer amounts to the rising hemicycle of the long-term base-level cycle,and folding one middle-term base-level cycle which could be classified into eight short-term ones under the guidance of high-resolution sequence stratigraphy theory.The formation thickness is becoming small from north to south,because every sublayer is up-piching out bed by bed.Different correlation principles should be followed with interface(erosion surface),rock,interface(sedimentary discontinuity) along the source direction,and rock,interface cross the source direction.更多还原