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现代地质 ›› 2005, Vol. 19 ›› Issue (Suppl): 32-36.

• 石油地质 • 上一篇    下一篇

石英ESR测年在层序地层学分析中的应用——以济阳坳陷义3-7-7井为例

赵勇1,2,操应长3,杨伟利1   

  1. 1中国科学院 广州地球化学研究所, 广东 广州510640; 
    2 胜利油田有限公司 胜利采油厂,山东 东营257015;
    3 石油大学 地球资源与信息学院,山东 东营257061
  • 收稿日期:2004-09-14 修回日期:2004-10-30 出版日期:2005-03-20 发布日期:2013-04-08
  • 作者简介:赵勇,男,高级工程师,博士研究生,1966年出生,石油地质学专业,主要从事油气开发的研究和管理工作。
  • 基金资助:

    中国石油化工集团公司“十五”科技攻关项目(P01013);国家“十五” 科技攻关项目(2001BA605A09)。

APPLICATION OF THE ESR AGE OF QUARTZ IN THE SEQUENCE STRATIGRAPHIC ANALYSIS—AN EXAMPLE FROM WELL YI 3-7-7 IN JIYANG DEPRESSION

ZHAO Yong1,2, CAO Ying-chang3, YANG Wei-li1   

  1. 1Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou,Guangdong510640,China;
    2Shengli Oil Production Plant,Shengli Oilfield Company Limited, Dongying,Shandong257015,China;
    3    University of Petroleum, Dongying, Shandong257061,China
  • Received:2004-09-14 Revised:2004-10-30 Online:2005-03-20 Published:2013-04-08

摘要:

山东济阳坳陷义3-7-7井古近系沙三段—沙二段沉积可划分出3个三级层序,沙三段下亚段为层序1,沙三亚段中为层序2,沙三上亚段为层序3,其中层序3的顶部保存不全。在对该井砂岩岩心进行了密集取样并对88块样品分别进行了石英ESR测年分析的基础上,建立了层序地层格架和ESR年龄间的关系,一个三级层序的持续时间约为1~4Ma,一个准层序的持续时间约为1.3~20万ɑ,且在三级层序内不同发育阶段的准层序的持续时间和沉积速率存在差异,层序发育早期和晚期的准层序的持续时间短,沉积速率大;层序发育中期的准层序的持续时间长,沉积速率小。

关键词: ESR测年, 层序地层, 准层序, 济阳坳陷

Abstract:

Es3-Es2 in the Shahejie Formation of well Yi3-7-7  in Jiyang depression can be divided into three 3rd order sequences. Sequence 1 corresponds to the lower stage of Es3, sequence 2 to the middle stage of Es3, sequence 3 to the period of the upper stage of Es3. Based on the dense sampling and the ESR age of quartz of 88 blocks, this paper has built the relationship between the sequence stratigraphic framework and the ESR age. The duration of a 3rd order sequence is from 1 Ma to 4 Ma, while a para-sequence is from 13,000 to 200,000 years. The duration and sedimentation rate differ during the each stage of a 3rd order sequence. In the early and late stage of the 3rd sequence, the duration of the para-sequence is short and the sedimentation rate is high. On the contrary, the duration is long and the sedimentation rate is low in the middle stage.

Key words: ESR age, sequence stratigraphy, para-sequence, Jiyang depression

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