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

Key words: 
• Pearl River Mouth Basin /
• Zhujiang Formation /
• carbonate rock /
• sequences /
• reservoir

Abstract:  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.