摘要
以经典层序地层学理论为指导,通过对地震、测井等资料的综合分析,归纳了具有珠江口盆地特色的层序界面划分标志及其特征,并在珠江口盆地新近系中识别出3个二级层序界面和12个三级层序界面,总结了层序界面特征形成的原因。利用层序划分结果建立珠江口盆地的层序格架,针对具有重要岩性油气藏意义的低位体系域,根据层序内部发育特征识别出低位体系域以扇-沟-楔为主、低位体系域以沟-楔为主和不发育低位体系域等3种层序模式。
Based on the guidance of classical sequence stratigraphic theory and comprehensive analysis on seismic and logging data,identification markers of sequence boundaries in Pearl River-mouth Basin were summarized and 3 second-order sequence boundaries and 12 third-order sequence boundaries were subdivided,and their formational reasons were obtained.The result of sequence division is used to establish a sequence framework of studied basin.Further more,3 types of low stand system tract patterns,such as fan-incised valley-wedge system,incised valley-wedge system and no low stand system tract are confirmed.
出处
《石油天然气学报》
CAS
CSCD
2012年第4期47-51,166,共5页
Journal of Oil and Gas Technology
基金
国家科技重大专项(2008ZX05023)
