Oil & Gas Geology ›› 1987, Vol. 8 ›› Issue (2): 153-162.doi: 10.11743/ogg19870207

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SCREENING OF BIOMARKER INDICES BY GENERALIZED CORRESPONDENCE ANALYSIS——DISCUSSION ON CRUDE OIL MATURITY OF JIYANG DFPRESSION

Zhou Guangjia   

  1. Geological Research Institute, Shengli Oilfield
  • Received:1986-01-13 Revised:1986-11-01 Online:1987-06-25 Published:2012-01-16

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Abstract:

Based on the data of 30 biomarker indices of 39 crude oil samples and 29 source rock samples collected in the Jiyang Depression,Huabei Basin, the author screened these indices by generalized correspondence analysis. It is suggested that the 5α-C27 Sterane ββ/(αα+ββ) and 5α-C29 Sterane 20S/(20R+20S)are the main indices of crude oil maturity, while the relative abundance of rearranged Sterane, 4-methylsterane and Tm/Ts are of secondary importance.