【摘要】 利用层序地层学研究方法 ,建立了沙河街组层序地层框架和目的层段层序地层框架 .将沙河街组地层划分为 3个层序 ,将主要含油层位s33～s23划分出 6个准层序 .依据目的层段层序地层框架 ,进行了层序地层对比 .分析了该区的沉积发展历史 ,建立了柳北地区沉积层序模式 ,进而阐明层序Ⅰ高水位体系域向柏各庄断层方向减薄是由准层序“合并”和层序Ⅱ与层序Ⅰ之间的层序界面在向柏各庄断层方向的不整合造成的更多还原

【Abstract】 The thesis builds up a sequence stratigraphic network of Sahejie formation and a sequence stratigraphic network of reservoirs by the methods of sequence stratigraphy. We separate Sahejie formation into 3 sequences, the main reservoirs into 6 parasequences and compare the most of well logging base on sequence stratigraphic network. Analysis of sediment development history is made and a model of sequence in the work area is built up. We have also explained why the HST of sequence I is becoming thin torward Baigezhuan faults. That is because of parasequence "combining" and unconformity.更多还原