Tao Guoliang, Qin Jianzhong, Tenger, Zhang Meizheng, Fu Xiaodong, Lou Zhanghua. ADVANCEMENTS IN QUANTIFYING MIXED OILS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2010, 32(4): 377-381. doi: 10.11781/sysydz201004377
Citation: Tao Guoliang, Qin Jianzhong, Tenger, Zhang Meizheng, Fu Xiaodong, Lou Zhanghua. ADVANCEMENTS IN QUANTIFYING MIXED OILS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2010, 32(4): 377-381. doi: 10.11781/sysydz201004377

ADVANCEMENTS IN QUANTIFYING MIXED OILS

doi: 10.11781/sysydz201004377
  • Received Date: 2010-03-10
  • Rev Recd Date: 2010-06-28
  • Publish Date: 2010-08-28
  • Artificial oil mixing experiment is frequently adopted in quantifying mixed oils at present.The author first summarizes the common process of the experiment,and then puts forward 4 questions during experimentation: nonlinear variation of biomarker ratios caused by different maturity of end member oils,invalidation of conventional biomarker parameters under the condition of high maturity or strong degradation degree,being hard to get end member samples in complex geological conditions,complexity of geochemical parameter's changing rules and experimental processes when there are many end member samples.Afterward,solutions to the above mentioned questions are proposed: quantitative analysis of biomarkers,selection of special biomarkers,multivariate data analysis,and computer software data analysis.Finally,a new multivariate data analysis method for quantifying mixed oils is introduced,through which,the numbers,composition and proportion of end member samples could be calculated even without knowing the end member samples or adopting the artificial oil mixing experiment.This method is particularly useful to quantify mixed proportion under complicated geological conditions.

     

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