【作者】 潘长春；

【导师】 傅家谟； 盛国英；

【作者基本信息】 中国科学院广州地球化学研究所 ， 地球化学， 2000， 博士

【摘要】 本论文将储集岩中的油气组分划分为自由态组分、束缚态组分（与矿物和沥青质结合的油气组分）和油气包裹体三类，然后设计了一整套实验室分析流程将这些组分逐步提取出来，分离出饱和烃组分做GC和GC－MS分析。通过综合分析、对比各组分的分十地球化学参数，对储集岩中这些不同赋存形式的油气组分地球化学意义有了更深入的认识。 研究结果表明同一储集岩样品中不同赋存形式的油气组分分于地球化学参数具有明显的差异。揭示了准噶尔盆地石西油区和莫索湾油气聚集带、塔里木盆地塔北库车油气聚集带为多源和多期成藏的产物。通过塔中11井志留系沥青砂沥青质吸附烃的研究恢复了志留系油砂初始原油的地球化学特征和油气多用充注的过程。根据胜利油区临南凹陷沥青质吸附烃和自由态油气组分的对比分析，重新评价了油气运移对油气组成和饱和烃组分分子地球化学参数的影响。更多还原

【Abstract】 In this dissertation, hydrocarbons in reservoir rocks have been classified as "free oils","absorbed oils" and "oil-bearing fluid inclusions". The "absorbed oils" include thoseadsorbed by minerals and asphaltene networks. In order to obtain all these types of oilcomponents, a practicaI approach of sequential extraction has been developed and carriedout on reservoir rocks, such as sandstone, volcanic and carbonate reservoir rocks. Thevariant types of oil components extracted separately from a same reservoir rock samplewere fractionated to obtain aliphatic fractions which were further analyzed by GC andGC-MS. The geochemical behavior and significance of every type oil components hasbeen discussed in details based on molecular parameters.Molecular correlation indicates that striking differences exist among different types of oilcomponents obtained from a same reservoir rock sampIe, reflecting compositionalvariations of oil chaiges into this reservoir during oil filling process. The results of thisstudy demonstrate that oil reservoirs in Shixi Oilfield and Mosowan Uplift of JunggarBasin and in Northern Tarim Uplift and Kuche Depression of Tarim Basin formed withseveraI oil charging episodes and were derived from multipIe source rocks. According tothe GC-MS analysis of adsorbed oils in asphaltene networks, the primary oilcompositions have been reconstructed and multiple oil charging episodes have been alsodemonstrated in Silurian tar sands from TZII Well. Based on the correlation of free oilcomponents and adsorbed oil components by asphaltene networks of two crude oilsamples collected from Linnan region of the Jiyang Depression, gross and molecularcolnpositional Fractionations caused by oil migration have been re-evaluated.更多还原