Xing Enyuan, Pang Xiongqi, Xiao Zhongyao, Jiang Zhenxue, Zhang Yongsheng, Guo Jigang. Application of quantitative grain fluorescence techniques in analysis of hydrocarbon charge history in Dabei 1 gas reservoir, Kuqa Depression, Tarim Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(4): 432-437. doi: 10.11781/sysydz201204432
Citation: Xing Enyuan, Pang Xiongqi, Xiao Zhongyao, Jiang Zhenxue, Zhang Yongsheng, Guo Jigang. Application of quantitative grain fluorescence techniques in analysis of hydrocarbon charge history in Dabei 1 gas reservoir, Kuqa Depression, Tarim Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(4): 432-437. doi: 10.11781/sysydz201204432

Application of quantitative grain fluorescence techniques in analysis of hydrocarbon charge history in Dabei 1 gas reservoir, Kuqa Depression, Tarim Basin

doi: 10.11781/sysydz201204432
  • Received Date: 2011-12-14
  • Rev Recd Date: 2012-05-20
  • Publish Date: 2012-07-28
  • For the study of charge history and distribution law of oil and gas in the Dabei 1 tight gas reservoir in the Kuqa Depression of the Tarim Basin,36 sandstone samples collected from wells DB 101,DB 103 and DB 2 were tested with quantitative grain fluorescence techniques.The results showed that wells DB 101 and DB 2 located in the same palaeo-trap while well DB 103 located in a separate palaeo-trap.Oils distributed in layers in those traps.The present water layers in well DB 101 were palaeo-hydrocarbon migration paths.Under the current gas-water interface in well DB 103,there might be residual oil layers,and the real gas-water interface was deeper.Part of the palaeo-oil reservoir in well DB 2 was destroyed in later stage.The distribution and evolution of palaeo-oil reservoirs played an important role in the present distribution of oil and gas accumulation.

     

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