石油与天然气地质 ›› 2007, Vol. 28 ›› Issue (3): 433-440.doi: 10.11743/ogg20070320

• 地球化学 • 上一篇    

准噶尔盆地南缘原油地球化学特征

魏东涛1,2, 贾东1, 赵应成2, 杨海波3, 陈涛2, 吴梁宇2, 邵宏舜4   

  1. 1. 南京大学, 地球科学系, 江苏, 南京, 210093;
    2. 中国石油, 勘探开发研究院, 西北分院, 甘肃, 兰州, 730020;
    3. 中国石油, 新疆油田分公司, 勘探开发研究院, 新疆, 克拉玛依, 834000;
    4. 中国科学院, 兰州地质研究所, 甘肃, 兰州, 730000
  • 收稿日期:2006-07-07 出版日期:2007-06-25 发布日期:2012-01-16
  • 基金资助:

    国家"十五"科技攻关项目(2004BA616A-04-09);国家自然科学基金项目(40372091).

Geochemical behaviors of crude oil in the southern margin of Junggar basin

Wei Dongtao1,2, Jia Dong1, Zhao Yingcheng2, Yang Haibo3, Chen Tao2, Wu Liangyu2, Shao Hongshun4   

  1. 1. Department of Earth Sciences, Nanjing University, Nanjing, Jiangsu 210093;
    2. Northwest Research Institute ofPetroleum Exploration & Development, PetroChina, Lanzhou, Gansu 730020;
    3. Institute of Petroleum Exploration & Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000;
    4. Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou, Gansu 730000
  • Received:2006-07-07 Online:2007-06-25 Published:2012-01-16

摘要:

通过系统分析区内原油的地球化学特征,将区内原油划分为三类六型,分别代表单一成因的煤系油(侏罗系,iv型)、湖相油(二叠系,(一七)型;白垩系,(一四)型;古近系,(一五)型)以及混源油(侏罗系和古近系,(九)型;侏罗系和二叠系,v型)。平面上不同构造单元的原油类型呈现出一定的差异,自东向西,阜康断裂带主要发现了iv类、(一七)类和v类油,齐古断褶带原油类型与阜康断裂带基本一致,还发现了(一五)类油,霍-玛-吐背斜带原油以(一四)类为主,四棵树凹陷原油主要是(九)类混源油和iv类煤系油,并提出了(一四)类白垩系生源油为本区油源的认识。

关键词: 油源分析, 地球化学, 白垩系, 准噶尔盆地南缘

Abstract:

A comprehensive geochemical analysis of the crude oil samples frorn the southem margin of Junggar basin helps to classify them into six basic types of three categories.They are oil from the Jurassic coal measure(type (一七)),and from lacustrine source rocks of the Permian(type (一四)),Cretaceous(type (一五)),and Eogene(type (九)),and mixed oils from the Jurassic and the Eogene(type V),and from the Jurassic and the Eogene(type V).It is showed that different tectonic units from the east to the west have different types of oils.The type iv,type (一七),and type V,are found in Fukang fault zones.The Qigu faulted-fold belts have similar oil types to those of the Fukang fault zones but with the additional type (一五).While the Huoerguosi-Manasi-Tugulu anticline and Sikeshu sag are relatively simple with the former contains mainly type (一四) and later harbors type (九) and type iv.According to the above oil-source analyses,it is suggested that the (一四)-type oil from the Cretaceous should be the source of oil in the study area.

Key words: oil-source analysis, geochemistry, Cretaceous, southern margin of Junggar basin

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