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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2007  >  29(2): 212-216
Zhang Meizhen, Cheng Qiuquan, Jiang Qigui, Zhang Caiming, Zhang Zhirong. DETERMINATION OF LIGHT HYDROCARBON IN CRUDE OIL WITH BACK-FLOW GAS CHROMATOGRAPHY METHOD[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2007, 29(2): 212-216. doi: 10.11781/sysydz200702212
Citation: Zhang Meizhen, Cheng Qiuquan, Jiang Qigui, Zhang Caiming, Zhang Zhirong. DETERMINATION OF LIGHT HYDROCARBON IN CRUDE OIL WITH BACK-FLOW GAS CHROMATOGRAPHY METHOD[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2007, 29(2): 212-216. doi: 10.11781/sysydz200702212
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DETERMINATION OF LIGHT HYDROCARBON IN CRUDE OIL WITH BACK-FLOW GAS CHROMATOGRAPHY METHOD

doi: 10.11781/sysydz200702212

  • Research Institute of Petroleum Geology, Research Institute of Petroleum Exploration and Production, SINOPEC, Wuxi, Jiangsu 214151, China

  • Received Date: 2006-03-09
  • Rev Recd Date: 2007-02-09
  • Publish Date: 2007-03-28
    Abstract
  • It is studied in this paper the two analysis methods of light hydrocarbon in crude oil(≤C15) with temperature programming sample injection(PTV) and back-flow GC analysis respectively.Based on the optimized choosing of pressure(P1,P2) and pressure changing time and speed control,the light hydrocarbon(≤C15) in crude oil is determined successfully.The heavy components are cut out.The column is protected.The resolution of several components which are hard to separate is better than that requested by GB/T18430.1-2001 and 1998 ASTM of USA.The parameters of light hydrocarbon fingerprint are comparable with those from normal GC analysis.The method is stable and credible.Some samples from the Jungger Basin are analyzed with this method to obtain geochemical parameters of light hydrocarbon.The analysis results show the homogeneity and the migration direction of crude oil samples clearly.

     

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