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Genetic features of gas-condensate reservoirs in the Kekeya Field, southwest depression in the Tarim Basin, China

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Abstract

Oils, condensates and natural gases in the Kekeya Field, southeast depression of the Tarim Basin were studied for their geochemical characteristics. According to the distribution analysis of the C2/C3 values with C1/C2 values, C2/C3 values with C1/C3 values, as well as C2/C3 values with dryness index, there are two different types of natural gases in the studied field, which are spatially regularly distributed. One is the oil cracking gas, located on shallow reservoirs over X 25 reservoir, namely Upper oil legs; the other is kerogen cracking gas, located on X 27 reservoirs, X8 reservoirs and E2 k reservoirs, namely Lower oil legs. In addition, the distribution patterns of molar concentration of oils and condensates with different carbon numbers of the n-alkanes in the Kekeya Field indicate that the crude oils have experienced several kinds of secondary alterations, which were closely related to the charging of gaseous hydrocarbons after petroleum accumulation. These results indicate that, based on the research of δ 13C values of individual hydrocarbons, heptane values and isoheptane values of light hydrocarbons and aromatic maturity parameters for oils, condensates and natural gases, oils and gases were charged at different geological time in the Kekeya Field.

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References

  1. Jiang D X, Yang H Q. Petroleum sporo pollen assemblages of Tarim Basin (in Chinese). Acta Sediment Sin, 2000, 18(1): 80–85

    Google Scholar 

  2. Chen RY, Xu S H, Du X F. The comparison between reservoir rock characteristics and petroleum source in the Kekeya Oil Field (in Chinese). Xinjiang Oil Gas, 2002, 14(2): 1–5

    Google Scholar 

  3. Liu D G, Wang X L. Oil and gas source study in the southwest depression, Tarim Basin (in Chinese). Acta Sediment Sin, 1997, 15(2): 35–39

    Google Scholar 

  4. Tang Y J, Hou D J, Xiao Z R, et al. Geochemical characteristics and origin of gas in Kekeya field (in Chinese). Offshore Oil, 2006, 26(2): 18–22

    Google Scholar 

  5. Xiao Z R, Tang Y J, Hou D J, et al. Study on oil source of Kekeya condensate oil-gas pool (in Chinese). Acta Sediment Sin, 2002, 20(3): 716–720

    Google Scholar 

  6. Hou D J, Xiao Z R, Tang Y J, et al. Geochemical characterization of mixing natural gas in Kekeya Field, Tarim Basin (in Chinese). China Nat Gas Geosci, 2003, 16(6): 474–479

    Google Scholar 

  7. Hou D J, Zhao Z Y, Tang Y J, et al. The geological and geochemical characteristics of oil crackedgas in Kekeya region, Tarim Basin (in Chinese). Natural Gas Geosci, 2004, 15(2): 137–141

    Google Scholar 

  8. Tang Y J, Hou D J, Xiao Z R, et al. The geochemical characteristics and origin of crude oil in Kekeya Oilfield (in Chinese). Bull Mineral Petrol Geochem, 2006, 25(2): 160–163

    Google Scholar 

  9. Tang Y J, Wen Z G, Hou D J. Application of gas chromatography-mass spectrometry-mass spectrometry technique in oil source analysis (in Chinese). J Oil Gas Tech, 2006, 28(3): 23–25

    Google Scholar 

  10. He D F, Chen H Y, Liu S B. Pool-forming mechanism of Kekeya condensate oil, and gas field (in Chinese). Petrol Explor Develop, 1997, 24(4): 28–32

    Google Scholar 

  11. Radke M, Willsch H, Leythaeuser D. Aromatic components of coal: relation of distribution pattern to rank. Geochim Cosmochim Acta, 1982, 46: 1831–1848

    Article  Google Scholar 

  12. Radke M, Welte D H. The methylphenanthrene index (MPI): A maturity parameter based on aromatic hydrocarbons. In: Bjoroy M, et al., eds. Advances in Organic Geochemistry 1981. New York: Wiley and Sons, 1983. 504–512

    Google Scholar 

  13. Li M W, Lin R Z, Liao Y S, et al. Organic geochemistry of oils and condensates in the Kekeya Field, Southwest Depression of the Tarim Basin, China (in Chinese). Org Geochem, 1999, 30(1): 15–37

    Article  Google Scholar 

  14. Kissin Y V. Catagenesis and composition of petroleum: Origin of n-alkanes and isoalkanes in petroleum crudes. Geochim Cosmotchim Acta, 1987, 51(9): 2445–2457

    Article  Google Scholar 

  15. Meubroek P, Cathles L, Whelan J. Phase fraction at south Eugene island Block 330. Org Geochem, 1998, 29(1): 223–239

    Article  Google Scholar 

  16. Thompson K F M. Fractionated aromatic petroleums and the generation of gas-condensates. Org Geochem, 1987, 11: 573–590

    Article  Google Scholar 

  17. Thompson K F M. Gas-condensate migration and oil fractionation in deltaic systems. Mar Petrol Geol, 1988, 5: 237–246

    Article  Google Scholar 

  18. Thompson K F M. Contrasting characteristics attributed to migration observed in petroleum reservoired in clastic and carbonate sequences in the Gulf of Mexico region. In: England W A, Fleet A J, eds. Petroleum Migration Geological Society Special Publication No. 59. London, 1991. 191–206

  19. Curiale J A, Bromley B W. Migration induced compositional changes in oils and condensates of a single field. Org Geochem, 1996, 27: 1097–1113

    Article  Google Scholar 

  20. Dzou L I P, Hughes W B. Geochemistry of oils and condensates, K Field, offshore Taiwan: a case study in migration fractionation. Org Geochem, 1993, 20(4): 437–462

    Article  Google Scholar 

  21. Yang Y C, Zhang Z H. Occurrence and original mechanisms of high waxy condensates or light crude oils (in Chinese). Geol Sci Tech Inf, 2005, 24(3): 55–59

    Google Scholar 

  22. Chen J F, Shen P. Isotopic geochemical characteristics and origin of natural gas from Tarim Basin, China (in Chinese). In: Works of Gas Geochemistry. Lanzhou: Gansu Science and Technology Press, 1992. 92–103

    Google Scholar 

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Authors and Affiliations

  1. Department of Geochemistry, Yangtze University, Jingzhou, 434023, China

    Min Zhang, GuangHui Huang, HongJing Zhao & Xiang Wang

  2. Key Laboratory of Oil & Gas Resources and Exploration Technology, Ministry of Education, Yangtze University, Jingzhou, 434023, China

    Min Zhang, GuangHui Huang, HongJing Zhao & Xiang Wang

Authors
  1. Min Zhang
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  2. GuangHui Huang
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  3. HongJing Zhao
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  4. Xiang Wang
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Correspondence to Min Zhang.

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Supported by the National Natural Science Foundation of China (Grant No. 40573030)

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Zhang, M., Huang, G., Zhao, H. et al. Genetic features of gas-condensate reservoirs in the Kekeya Field, southwest depression in the Tarim Basin, China. Sci. China Ser. D-Earth Sci. 52 (Suppl 1), 19–25 (2009). https://doi.org/10.1007/s11430-009-5008-6

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  • DOI: https://doi.org/10.1007/s11430-009-5008-6

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