摘要
初步认定古近系为珠江口盆地番禺4洼主要接替层系,古近系文昌组地层是主要的生油岩,其地层分布比较广泛,具备较好的成藏条件,有必要对古近系进行层序地层学及储层分布研究。番禺4洼钻井资料较少,但是地震资料上各种反射特征丰富,因此应用层序地层原理和方法建立了等时地层格架,将番禺4洼古近系文昌组划分6个三级层序,并在该时间地层单元格架内,运用地震沉积学分析方法 ,对番禺4洼古近系文昌组储层分布进行预测。
After a preliminary research, we deem that the Paleogene will be the main replacement stratum in Panyu 4 Sag, Pearl River Mouth Basin; and the Paleogene Wenchang Formation is the dominant source rock with wide distribution and better reservoir-forming conditions.So, it is very important to implement a study on the sequence stratigraphy and reservoir distribution. There are a little drilling data about this sag whereas a lot of seismic data representing various reflection characteristics. So, an isochronous stratigraphic framework was established by means of sequence stratigraphical theories and methods; and then the Wenchang Formation might be divided into six third-order sequences; at last the reservoir distribution was predicted and analyzed by seismic sedimentology.
出处
《天然气勘探与开发》
2015年第4期23-27,9-10,共5页
Natural Gas Exploration and Development
基金
国家重大专项项目23课题(2008ZX05023-001-006)"近海富烃凹陷资源潜力再评价和新区
新领域勘探方向"
关键词
珠江口盆地
番禺4洼
古近系
层序地层
地层切片
Pearl River Mouth Basin,Panyu 4 sag,Paleogene,sequence stratigraphy,stratal slice
