不同分离方法分离烃源岩可溶有机质的对比实验  

Comparative experiment of separation of soluble organic matter from source rocks by different methods

作　　者：田鑫 程斌[1,2] 马大钧 邓德国[1,2] 孙杰 Tian Xin;Cheng Bin;Ma Dajun;Deng Deguo;Sun Jie(China University of Petroleum(East China),Qingdao 266000,China;National Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China),Qingdao 266000,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,青岛266000 [2]深层油气全国重点实验室(中国石油大学(华东)),青岛266000

出　　处：《分析仪器》2024年第3期56-62,共7页Analytical Instrumentation

摘　　要：对加速溶剂萃取与索式提取两种烃源岩可溶有机质分离方法的分离总量、分离效率、可溶有机质的化学与分子组成进行了对比。结果表明:加速溶剂萃取分离出的可溶有机质总量略低于索式提取,但分离效率远高于索式提取;加速溶剂萃取所得的可溶有机质中饱和烃与芳香烃的相对百分含量高于索式提取,非烃与沥青质的相对百分含量低于索式提取;两种分离方法所得的可溶有机质中高碳数饱和烃与芳香烃化合物的分布形态、地球化学比值参数和绝对含量均具有很好的可比性,相反,二环倍半萜系列化合物显示较大差异,加速溶剂萃取所得可溶有机质的低碳数、低沸点的二环倍半萜化合物的相对百分含量高于索式提取。The total separation amount,separation efficiency,chemical and molecular composition of soluble organic matter in source rocks separated by Accelerated solvent extraction and Soxhlet extraction are compared.The results show that the total amount of soluble organic matter separated by accelerated solvent extraction is slightly smaller,but the separation efficiency is much higher than that of Soxhlet extraction.The soluble organic matter obtained by accelerated solvent extraction contains higher relative percentage of saturated hydrocarbons and aromatic hydrocarbons,and lower relative percentage of non-hydrocarbons and asphaltenes.The distribution,geochemical ratio parameters and absolute content of high carbon saturated hydrocarbon and aromatic hydrocarbon in soluble organic matter obtained by the two separation methods are well comparable.On the contrary,the bicyclic sesquiterpanes show great differences.In the bicyclic sesquiterpanes obtained by accelerated solvent extraction,the relative percentage of compounds with low carbon number and low boiling point is higher.

关 键 词：加速溶剂萃取 索式提取 可溶有机质分离 生物标志化合物 

分 类 号：P618.13[天文地球—矿床学] O652.6[天文地球—地质学]