Geochemical significance of hydrocarbons desorbed from asphaltenes

作     者：潘长春 肖中尧 

作者机构：1. Guangzhou Institute of Geochemistry 510640 Guangzhou China 2. Research Center of Tarim Petroleum Exploration and Development 841000 Xinjiang China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：1998年第41卷第1期

页      面：82-86页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：ProjectsupportedbytheChineseAcademyofSciences StateKeyLaboratoryofOrganicGeochemistryandResearchCenterofTarimPetroleumExplorationandDevelopment 

主　　题：biodegradation hydrocarbon desorption from asphaltenes primary hydrocarbon components. 

摘      要：Saturate hydrocarbon fractions desorbed (cleaned) from asphaltenes extracted and separated from two core samples (a tar sand and a reservoir sandstone sample) were analyzed by gas chromatography mass spectrometry (GC MS). The results indicated that n alkanes adsorbed in asphaltenes were kept quite well during and after severe biodegradation over 360 Ma. Hydrocarbon desorption could be an alternative method of, or even better than the pyrolysis of asphaltenes to reconstruct the hydrocarbon fingerprints of primary oils and extend the understanding of the origins of hydrocarbon reservoirs.