百色盆地中三叠统生油评价和油源对比  

OIL-GENERATION ASSESSMENT AND OIL-SOURCE CORRELATION OF MIDDLE TRIASSIC IN BAISE BASIN

作　　者：范善发[1] 周中毅[1] 潘长春[1] 裴存民 韩林林 吴大华 董平[2] 陈长秀 

机构地区：[1]中国科学院地球化学研究所广州分部 [2]滇黔桂石油勘探局勘探开发科学研究院

出　　处：《石油与天然气地质》1991年第3期251-260,共10页Oil & Gas Geology

摘　　要：根据24个样品的生物标记物资料、稳定碳同位素资料和其他资料,作者得出结论:广西百色盆地中三叠统储层和始新统那该组储层所储集的石油,都是那读组生油岩生成的。Middle Triassic marine sediments in the Baise Basin are characterised by stable car-bon isotopic δ^(13)C-value of -27. 49--29. 34‰, Pr/Ph less than 0.5 and the presence ofgarmmacerane, tricyclic terpanes, β- and γ-carotanes. Middle Triassic biomarker distribu-tion reflects saline and strong reducing palaeoenvironment. The stable carbon isotopic δ^(13)C-value and biomarker data indicate that Middle Trias-sic oils come from the source rocks of the Tertiary Nadu Formation. The Middle Triassicstrata, having very low abundance of organic matter, belong to nonsource rocks and areinmature to condensate stages.

关 键 词：盆地 三叠纪 生油岩 生物标记物 

分 类 号：P618.130.2[天文地球—矿床学]