新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 262-263.

• 油气勘探 • 上一篇    下一篇

多元统计分析在油源对比中的应用

李振广, 李景坤, 宋桂侠   

  1. 中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712
  • 收稿日期:2003-09-16 发布日期:2020-09-18
  • 作者简介:李振广(1953-),男,辽宁朝阳人,高级工程师，有机地球化学。联系电话:0459-5508854。

Application of Multivariate Statistical Analysis to Oil-Source Correlation

LI Zhen-guang, LI Jing-kun, SONG Gui-xia   

  1. Research Institute of Exploration and Development, Daqing Oilfield Company Ltd. PetroChina, Daqing, Heilongjiang 163712, China
  • Received:2003-09-16 Published:2020-09-18

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摘要： 用聚类分析方法对松辽 盆地北部黑帝庙油层34块原油样品进行分析,结果表明，该层原油可以分成两大类，三亚类。I类原油饱和烃色谱在nC14-nC21范围峰强度最大，II类a次之，II类b最小。在ΣnC21-/ΣnC22+ 范围内,I类b原油强度占优势, II类a次之，I类原油最小。I类原油的nC21+nC22比值和nC21+nC22占有优势。采用因子分析方法对黑帝庙原油和109块泥岩样品进行油源对比,结果表明，I类原油主要来源于青一段生油岩，I类原油主要来源于嫩一段生油岩,嫩二段亦有-定贡献。

关键词: 聚类分析, 因子分析, 油源对比

Abstract: Analysis of 34 crude samples from Heidimiao formation in northern Songliao basin is made with the cluster analysis method.The results show that the crude oil can be divided into two types and three subtypes.From saturated hydrocarbon chromatographicalanalysis, Type-I oil has the top peak intensity in nC14+nC21, Type-IIa takes second, and Type-Ib assumes the lowest; in range ofnC25~nC37, Type II-b predominates instead of Type-IIa, while Type-I assumes the lowest. For Type-I oil, it is dominated by ΣnC21-/ΣnC22+ ratio 1and nC21+nC22. In addition, the factor analysis method is adopted to make source correlation of 34 Heidimiao crude samples and 109mudstone samples. It is shown that Type-I crude primarily originated in Q-I member source rock, while Type-II in N-1 source rock, andN-2 source rock has some contributions to it.

Key words: cluster analysis, factor analysis, oil and source rock correlation

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