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根据烃源岩有机质丰度并结合地质分析方法,提出了油源丰度指数的概念并以此对塔里木盆地西南坳陷的烃源岩进行了评价.认为中新统、上白垩统—下第三系为较差—非烃源岩,中、下侏罗统暗色泥岩、石炭系—下二叠统和寒武—奥陶系暗色碳酸盐岩为较好—好的烃源岩,古生界的泥质岩基本为非烃源岩.
According to the organic matter abundance of source rocks and the method of geological analysis, the concept of oil source abundance index is put forward to evaluate the source rocks in the southwest depression of Tarim Basin.It is suggested that the Miocene, Upper Cretaceous - Third-line is poor - non-source rock, middle and lower Jurassic dark mudstone, Carboniferous - Lower Permian and Cambrian - Ordovician dark carbonate rock is better - a good source rock, paleontology The boundary mudstone is basically non-source rock.