Investigation on Pyrolytic N itrogen Compounds in the Qun-4 Well Oil of the Tarim Basin
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摘要: 在塔里木盆地群４井原油中成功地分离并检测出丰富的吡咯类含氮化合物—链基咔唑类，而链基苯并咔唑和链基二苯并咔唑则未被发现。链基咔唑中以二甲基咔唑、C3—咔唑和C4—咔唑为主。在甲基咔唑和二甲基咔唑中又鉴别出多个异构体。甲基咔唑中G2 G3含量相当，而二甲基咔唑中G3占优势。在我国，原油含氮化合物研究刚刚起步。实践证明，该类化合物是研究油气运移的可靠的、专属性强的标志化合物。通过本项研究，我们认为群４井原油已经历了长距离的运移。Abstract: A number of pyrolytic nitrogen com pounds(alkylcarbazoles) were suc cessfully fractionated and de-tected from the Qun-4 well oil of the Tarim basin. And alkylbener carbazoles and alkyldibenzo carbawles, however, were not found in the oil. Of the alkylcarbazoles, dimethylcarbawle,C3一car-bazole and C4一carbazole are dominant with the largest amount for dimethylcarbazole. The other alkyl-carbawle compounds detected are methylcarbazole, C5一carbazole, C6一carbazole, C7一 carbazole and carbazole in the amount order. Several isomers were further identified in methylcarbazoles and dimethyl-carbawles. The amounts of G2 and G3 components are equal in methylcarbazoles, and in dimethylcar-bazoles, G3 is dominated, G2 amount is in the second place and that of G1 is the smallest. The existinganalytical data showed that〔arbazoles are reliable and characterized biomarkers for study of oilmigra-tion. By using the carbazole parameters, it was thought that oils from the Qun-4wellinthe Tarim basinhave undergone a long distance migration.
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Key words:
- Tarim basin /
- pyrolytic nitrogen compound /
- oil migration
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2 刘洛夫，徐新德，毛东风，于会娟.咔哩类化合物在油气运移研究中的应用初探.科学通报.1997, 42(4)
3 Li M, Larter S R, STODDRTD, Bjory M.Fractionation ofpyrrolic nitrogen compounds in petroleum during migration:derivation of migration一related geochemical parameters. InCubitt J M.L,ngland W A eds. The Geochemistry of reser-voirs. Geological Society Special Publication 1995, 86 103-123.
4 刘洛夫.王伟华.徐新德.毛东风.塔里术盆地群5井原油芳烃地球化学研究.沉积学报.1996, 4(2): 47-55. -
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