• 责任者：Ye Wenqing (State Key Laboratory of Marine Geology ; Tongji University ; Shanghai 200092 ; China) ; Cai Jingong
• 刊名：Geological Journal of China Universities
• 出版年：2009
• 卷期：15(4)
• 关键词：烃源岩 ; source rocks ; 东营凹陷 ; Dongying Sag
• 页码：p.547-556
• 图表：5 illus., 1 table, 62 refs.
• 分类号：1003
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

11 samples of Tertiary argillaceous hydrocarbon source rocks in the Dongying Depression were selected and separated into three fractions according to density difference (<1.6 g/cm³, 1.6~2.2g/cm³ and>2. 2 g/cm³) after crushing them in order to extract the free organic matter, inorganic minerals and organo-clay complex from the argillaceous hydrocarbon source rocks. The quantities and TOC of different fractions were tested and observed by scanning electron microscopy to explore the differences of the occurrence forms of organic matter and the modes of organic carbon distribution in different density fractions. After the density separation, the recovery rate of the quantity and the organic carbon of different fractions approximately reached 100%. These features show credibility of the density separation method and less destruction to hydrocarbon source rocks.