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J4 ›› 2012, Vol. 18 ›› Issue (2): 350-.

• 其他学科论文 • 上一篇    下一篇

准噶尔盆地西北缘红旗坝地区烃源岩特征与油源分析

逯晓喻,黄志龙,张美艳,刘凤妍   

  1. 中国石油大学(北京) 油气资源与探测国家重点实验室,北京
  • 出版日期:2012-06-20 发布日期:2012-07-11
  • 作者简介:逯晓喻,1985年生,女,博士生在读,主要从事油藏地球化学和油气藏形成机理与分布规律研究;E-mail: luxiaoyu33@163.com

Source-Rock Characteristics and Oil-source Correlation in the Hongqiba Area, Northwestern Junggar Basin

LU Xiaoyu, HUANG Zhilong, ZHANG Meiyan, LIU Fengyan   

  1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing
  • Online:2012-06-20 Published:2012-07-11

摘要:

通过对准噶尔盆地西北缘红旗坝地区钻遇的二叠系烃源岩岩芯和原油样品进行地球化学分析,包括族组分、同位素
和生物标志物等,结果表明,准噶尔盆地西北缘红旗坝地区二叠系泥岩有机质丰度低,类型较差,红旗坝及其邻近地区的
原油与玛湖凹陷风城组烃源岩在三环萜烷C20,C21 和C23 分布趋势、Pr/Ph 和碳同位素等存在良好对应关系,因此红旗坝地区
原油主要来自玛湖凹陷风城组烃源岩的贡献。

关键词: 烃源岩评价, 油源对比, 红旗坝地区, 准噶尔盆地

Abstract:

Analyses of geochemical characteristics of oil fractions, C-isotope and biological markers of well cores and crude oil
from the Hongqiba area in the northwestern margin of Junggar Basin reveal that the source rock has low abundance in organic
matter and poor kerogen. Oils from Hongqiba and its adjacent areas show a certain degree of correlations with the source rocks
of the Fengcheng Formation in the Mahu sag with regard to the distribution of C20, C21, C23 tricyclic diterpanes, Pr/Ph, and carbon
isotope. Therefore, we suggest that oils mainly originated from the Fengcheng Formation of the Mahu sag.

Key words: source rock evaluation, oil-source correlation, Hongqiba area, Junggar Basin

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