珠江口盆地（东部）珠江组碳酸盐岩层序地层及储层分布

以层序地层学理论为指导，运用岩芯观察及薄片鉴定、测井、录井、地震及其古生物等资料对珠江口盆地（东部）珠江组碳酸盐岩进行层序地层研究，共识别出5个三级层序界面和4个三级层序，各三级层序界面均是Vail的Ⅱ类层序界面的具体表现，建立了珠江组碳酸盐岩的层序地层格架。在层序地层研究的基础上，对碳酸盐岩储层的时空分布进行了系统研究，储层主要发育在三级层序高位体系域。结果表明:有利储集相带分布于流花地区SQ3 HST台地边缘礁及生屑滩，较有利储集相带分布于惠州地区SQ1 HST、SQ2 HST台地边缘礁、生屑滩或台内点礁、生屑滩，以及陆丰地区SQ1 HST台内点礁、生屑滩。

Sequence Stratigraphy and Reservoir Distribution of Carbonate of Zhujiang Formation in the Eastern Pearl River Mouth Basin

On the basis of stratigraphic theory and the analysis of core,thin section,logging,seismic and paleontological data,five sequence boundaries which are similar to type two sequence boundary of Vail sequence and four sequences can be recognized of carbonate of Zhujiang Formation in the eastern Pearl River Mouth Basin.The isochronous formation framework has been established.According to the study of sequence stratigraphy,the temporal and distribution of reservoir of the carbonate rock can be inferred.The relation between reservoir and sequence stratum is determined and the reservoir mainly occurs in the HST of the sequence framework.The results show that platform edge reef and bioclast bank of SQ3-HST in liuhua area are the favorable reservoir belt,reef and bioclast bank of platform edge or platform point reef and bioclast bank of internal platform of SQ1-HST and SQ2-HST in Huizhou area and platform point reef and bioclast bank of internal platform of SQ1-HST in lufeng area are the less favorable reservoir.