惠州凹陷西江24-3油田韩江组-珠江组高分辨层序地层分析

Analysis on high-resolution sequence stratigraphy in Hanjiang-Zhujiang formation of Xijiang 24-3 oilfield,Huizhou sag

根据高分辨层序地层学原理,在西江24-3油田韩江组-珠江组识别出了两个长期和四个中期旋回,并对工区内长中短期基准面旋回和结构特征及分布进行了详细的描述。在高分辨层序地层划分对比的基础上,建立了韩江组-珠江组高分辨等时地层格架,分析了沉积演化过程和生储盖组合规律。

Applying the high-resolution sequence srtatigraphy,the structures and distribution of the long,middle and short term base level cycles in Hanjiang-Zhujiang formation of Huizhou sag in Xijiang 24-3 oilfield are described in detail.And two long-term and four middleterm base level cycles are identified.The high-resolution sequence stratigraphic division and correlation result in the construction of the isochronous stratigraphic framework of Hanjiang-Zhujiang formation,the analysis of the depositional evolution,and the combination of source bed,reservoir and caprock in the study area.