多元统计分析在油源对比中的应用  

Application of Multivariate Statistical Analysis to Oil-Source Correlation

作　　者：李振广[1] 李景坤[1] 宋桂侠[1] 

机构地区：[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

出　　处：《新疆石油地质》2004年第3期262-263,共2页Xinjiang Petroleum Geology

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nC25—nC37范围内,Ⅱ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,Ⅱ类原油主要来源于嫩一段生油岩,嫩二段亦有一定贡献。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 chromatographical analysis, Type-I oil has the top peak intensity in nC14～nC21, Type-IIa takes second, and Type-IIb assumes the lowest; in range of nC25～nC37, Type II-b predominates instead of Type-IIa, while Type-I assumes the lowest. For Type-I oil, it is dominated by ∑nC21-/∑nC22+ ratio and nC21+ nC22. In addition, the factor analysis method is adopted to make source correlation of 34 Heidimiao crude samples and 109 mudstone samples. It is shown that Type-I crude primarily originated in Q-I member source rock, while Type-II in N-1 source rock, and N-2 source rock has some contributions to it.

关 键 词：多元统计分析 油源对比 玉门油田 样品分析 

分 类 号：TE122.114[石油与天然气工程—油气勘探]