中国石油大学学报（自然科学版）2017，Vol.41Issue(6)：50-63,14.DOI:10.3969/j.issn.1673-5005.2017.06.006
微量元素在混源油类型划分及油源对比中的应用
Application of trace elements in mixed-oils classification and oil-source correlation
摘要
Abstract
The trace elements in crude oils from Triassic Baikouquan formation, Permian and bitumens of Permian source rocks in Mahu sag in Junggar Basin have been analyzed. And on the basis of the contents and ratios of trace metals, like V, Cr, Ni and Mo, etc, the oils have been classified into three single-sourced oils (A1, A2 and B) and two groups of mixed oils (C1 and C2). Trace elements distribution of source rock bitumens were investigated, then the recognition chart of distinguishing mixed oils has been established. It is found that the transition metals like V, Cr, Cu, Mo are enriched in crude oils and the contents of rare earth elements (REE) are very low. The ratios of V/Ni, Co/Ni and Cr/Mo can be effective index for oil-source correlations. And A1 oils are mainly from P1 f carbonate source rocks, while A2 oils are from P1 f mudstones, and B oils are from P2 w mudstones. C1 are the mixtures of A1 and B, while C2 are the mixtures of A2 and B. This classification method has proven that the trace elements can be effective tools for high-maturity oil classification and oil-source correlations in complex geological conditions.关键词
微量元素/混源油/油源对比/百口泉组/玛湖凹陷/准噶尔盆地Key words
trace elements/mixed-oils/oil-source correlation/Baikouquan Formation/Mahu sag/Junggar Basin分类
能源科技引用本文复制引用
陈哲龙,柳广弟,王绪龙,任江玲,高岗,马万云,高平..微量元素在混源油类型划分及油源对比中的应用[J].中国石油大学学报（自然科学版）,2017,41(6):50-63,14.基金项目
国家科技重大专项(2017ZX05001-004) （2017ZX05001-004）
中国石油新疆油田分公司课题 (2014-C4023) （2014-C4023）
