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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2012  >  34(2): 199-201
Tao Cheng, Liu Wenhui, Yang Huamin, Ba Liqiang. A new method for analysis of δ18O and δD in oil-and-gas field water and its application[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(2): 199-201. doi: 10.11781/sysydz201202199
Citation: Tao Cheng, Liu Wenhui, Yang Huamin, Ba Liqiang. A new method for analysis of δ18O and δD in oil-and-gas field water and its application[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2012, 34(2): 199-201. doi: 10.11781/sysydz201202199
shu

A new method for analysis of δ18O and δD in oil-and-gas field water and its application

doi: 10.11781/sysydz201202199
  • 1.

    Lanzhou Research Center of Petroleum Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China

  • 2. Sinopec Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China

  • Received Date: 2010-04-25
  • Rev Recd Date: 2012-02-03
  • Publish Date: 2012-03-28
    Abstract
  • We described a new and simple on-line pyrolysis method for the analysis of δ18O and δD in oil-and-gas field water by continuous flow EA-IRMS.The sample water was converted into CO and H2 in glassy carbon tube which was filled with glassy carbon granules at high temperature (1 450℃).And then,CO and H2 were separated in GC column prior to transferring into the ion source of the Isotope Ratio MS for sequential determination of hydrogen and oxygen isotopes of the sample by magnet switching.This method performed dual measurements of δ18O and δD from a single sample,and had high efficiency and good productivity.Using this method,we measured some water samples from gas fields in the Sichuan Basin.The results showed that the water of Triassic Xujiahe Formation was the mixture of marine sedimentary and ancient meteoric water.

     

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