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塔里木盆地台盆区海相油源对比存在的问题及进一步工作方向
马安来 金之钧 王毅
摘 要:由于塔里木盆地寒武系烃源岩处于高成熟-过成熟阶段,目前钻井揭示到的上奥陶统良里塔格组烃源岩分布面积又较为局限,因此,台盆区海相原油的主力烃源岩一直存在争议.通过对原油地球化学特征研究,认为海相原油的主体为生油高峰-生油晚期阶段的产物.由于原油与寒武系烃源岩成熟度之间存在较大差异,盆地存在多套烃源岩多期成藏的特征及原油遭受二次蚀变作用,生物标志物在台盆区油源对比中受到一定的限制,今后应进一步加强对处于生油窗范围内的上奥陶统良里塔格组烃源岩特殊标志化合物演化规律及下古生界烃源岩热演化的研究.
关键词:油源对比;烃源岩;生物标志物;寒武系;奥陶系;塔里木盆地
分类号:TE112.1 文献标识码:A
文章编号:0253-9985(2006)03-0356-07
Problems of oil-source correlation for marine reservoirs in Paleozoic craton area in Tarim basin and future direction of research
Ma Anlai Jin Zhijun Wang Yi
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基金项目:国家重点基础研究发展规划(973)项目(2005CB422106)
作者简介:马安来(1969-),男,副教授,石油地球化学
作者单位:马安来(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
金之钧(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
王毅(中国石油化工股份有限公司,石油勘探开发研究院,北京,100083)
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