烃源岩的溶剂抽提研究  

SOLVENT EXTRACTION OF SOURCE ROCKS

作　　者：许敏 郭绍辉[1] 李术元[1] 沈润梅 秦匡宗[1] 

机构地区：[1]石油大学化工学院重质油加工国家重点实验室,北京102200

出　　处：《石油大学学报（自然科学版）》2001年第3期49-51,54,共4页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：国家自然科学基金资助项目 (496 72 12 6 )

摘　　要：以氯仿、体积比为 1∶1的二硫化碳与N甲基 2吡咯烷酮 (CS2 NMP)混合溶剂为抽提溶剂 ,采用直接抽提、连续直接抽提、浸泡抽提等方法对我国大庆油田英 412井和江汉油田王 80井及谭 30井的 3个烃源岩样品进行了抽提研究。实验结果证明 ,烃源岩有机质中存在着大量的非共价键缔合结构 ;烃源岩的抽提率略大于相应干酪根的抽提率 ,这表明烃源岩的酸处理富集有机质的过程对有机质的物理化学结构有一定的影响。另外 ,抽提条件的改变可影响抽提率 。Ying412 source rock from Daqing oil field, Wang80 and Tan30 source rocks from Jianghan oilfield are systematically studied with the solvent extraction method. The extraction solvents include CHCl 3 and CS 2NMP. Different extraction procedures are used, including direct extraction, consecutive extraction and saturated extraction. The high extraction yields support the conclusion that abundant non covalent bond structures (associated structures) existing in the organic matter of these source rocks. The extraction yield from untreated source rocks is a little higher than that from their corresponding concentrates, which indicates that acid treatment in concentrating kerogen will influence the physical chemical structure of the source rock in some extent. Non covalent bond association will change dynamically during the extraction process of the source rock.

关 键 词：烃源岩 溶剂抽提 混合溶剂 非共价健结构 缔合结构 抽提率 二硫化碳 氯仿 N-甲基-2-吡咯熔酮 

分 类 号：P618.13[天文地球—矿床学]