摘要
为了更加准确地预测和评价珠江口盆地惠州凹陷古近系油气资源潜力,精细划分了该凹陷油气汇聚单元和成藏体系,并利用层序地层学和地球化学相结合的方法,分析了该凹陷古近系始新统-下渐新统恩平组和始新统文昌组6个三级层序烃源岩有机质丰度、有机质类型、生烃潜力大小和生物标志物组合特征,指出文昌组SQ 2层序地层中—深湖相泥岩是主力烃源岩,恩平组SQ 5和SQ 6层序地层沼泽相、河流三角洲相和浅湖相煤系烃源岩是重要烃源岩。
The organic abundance, organic types, hydrocarbon-generating potential and biomarker composite in the six three-class sequence Palegene source rocks from the Huizhou depression are investigated by methods of sequence strata and geochemistry, in order to exactly predict and evaluate the petroleum and gas generation in Pearl River Mouth basin, and subtly classify petroleum systems. The middle-deep lacustrine mudstone in the SQ2 member of Wenchang Formation in Eocene is main source rock, and the swamp and fluvio-deltaic and coal measure in the members of SQ5 and SQ6 of Enping Formation in Oligocene is an important source rock.
出处
《天然气地球科学》
EI
CAS
CSCD
2007年第5期709-714,共6页
Natural Gas Geoscience
基金
中国海洋石油总公司综合科研项目(编号:海油科字(2004)37号)资助
关键词
珠江口盆地
惠州凹陷
古近系
烃源岩
层序地层
地球化学
生物标志物
Pearl River Mouth basin
Huizhou depression
Paleogene
Source rock
Sequence strata
Geochemistry
Biomarkers.
