Abstract: Ten series of aromatic hydrocarbon compounds including bipheny1,naphthalene,phenanthrene,anthracene,retene,chrysene,benzoanthracene,dibenzofuran,fluorene,dibenzothiophene series from seven lacustrine mudstone samples and three swamp coal samples,as well as five crude samples of the Triassic and the Jurassic in Kuqa Depression were analyzed with GC-MS.It is found that the relative abundances of dibenzofuran series are higher in the coal samples,but lower in the lacustrine mudstone samples.According to the relative abundances of dibenzofuran series,especially dibenzofuran compound in TICs for aromatic hydrocarbons of source rocks and crude oils,the crude oil samples of Sha-3 Well (Cretaceous),Yangtake-5 Well (Eogene and Cretaceous) and Quele-1 Well (Eogene) are possibly derived from coals of the Lower Jurassic Yangxia Formation or the Middle Jurassic Kezilenuer Formation,whereas the crude oil samples of Yingmai-7 Well (Eogene) and Yaha-1 Well (Eogene) may be from the Triassic and Jurassic lacustrine mudstones in Kuqa Depression.The differentiation of coal-generated oils from lacustrine mudstone-generated oils in Kuqa Depression with dibenzofuran series has enlightening and directive significance for further correlations of oil-source rock and oil and/or gas exploration in Kuqa Depression.

Key words: Kuqa Depression, Triassic, Jurassic, lacustrine mudstone, coal, aromatic hydrocarbon, dibenzofuran, coal-formed oil, lacustrine mudstone-formed oil

摘要： 分析了塔里木盆地库车坳陷三叠系、侏罗系7个湖相泥岩和3个煤岩以及5个陆相原油样品中的萘、联苯、氧芴、芴、二笨并噻吩、菲、蒽、惹烯、和苯并蒽系列10种重要芳烃化合物.研究发现,氧芴系列化合物在煤岩样品中丰度高,在湖相泥岩样品中丰度低.据岩、油芳烃总离子流图中氧芴系列化合物,特别是氧芴之相对丰度对比研究结果判识,沙3井白垩系原油、羊塔克5井下第三系和白垩系原油以及却勒1井下第三系原油可能为库车坳陷下侏罗统阳霞组或中侏罗统克孜勒努尔组的煤成油,英买7井奥陶系原油和牙哈1井下第三系原油可能为库车坳陷三叠系、侏罗系湖相泥岩成油.该研究结果对进一步开展库车坳陷油源对比研究和油气勘探具有一定的意义.

关键词: 库车坳陷, 三叠系, 侏罗系, 湖相泥岩, 煤岩, 芳烃, 氧芴, 煤成油, 湖相泥岩成油