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库车坳陷东部下—中侏罗统砂岩流体包裹体特征与油气成藏期次研究

年秀清 罗金海 李杰林 张国锋

西安石油大学学报(自然科学版)2011,Vol.26Issue(4):12-18,7.
西安石油大学学报(自然科学版)2011,Vol.26Issue(4):12-18,7.

库车坳陷东部下—中侏罗统砂岩流体包裹体特征与油气成藏期次研究

年秀清 1罗金海 1李杰林 2张国锋1

作者信息

  • 1. 西北大学地质学系,陕西西安710069
  • 2. 青海油田格尔木天然气公司,青海格尔木816000
  • 折叠

摘要

Abstract

There is developed rich liquid hydrocarbon inclusion in the lower-middle Jurassic sandstone in the east of Kuche Depression. The analysis of hydrocarbon-containing brine inclusion characteristics and microscopic temperature measurement data shows that,hydrocarbon filling in the studied area was carrying out since the middle-late stage of Miocene,and there are two main filling stages. The first stage is in the late period of early diagenetic stage,the time is about in 12 ~ 10 Ma ( approximately equivalent to Kangcun stage of Miocene) ,and the filled hydrocarbon is mainly low mature hydrocarbon. The second stage is in the early period of middle diagenetic stage,and the time is in 9~7 Ma (approximately equivalent to Jidike stage of Miocene) the filled hydrocarbon is mainly low mature hydrocarbon in this stage, but a little of light yellow fluorescent mature hydrocarbon is filled. There is obvious difference in the a-bundance of the inclusion in different formation. The abundance of the inclusion in Ahe Formation(Ja) and Yangxia Formation(J1y)of lower Jurassic is obviously higher than that in Kezilenuer Formation ( J2k)and Qiakemake Formation ( J2q)of middle Jurassic, which may be related to the particle size of sandstone. The particle size of lower Jurassic sandstone is larger,and there is developed the better reservoir,which is favorable to the development of inclusion. The particle size of middle Jurassic sandstone is fine,and there is developed the worser reservoir, which is not favorable to the development of inclusion.

关键词

流体包裹体/均一温度/油气充注期次/流体包裹体丰度(GOI)/库车坳陷

Key words

fliud inclusion/homogenous temperature/hydrocarbon filling stage/abundance of fluid inclusion/Kuche Depression

分类

能源科技

引用本文复制引用

年秀清,罗金海,李杰林,张国锋..库车坳陷东部下—中侏罗统砂岩流体包裹体特征与油气成藏期次研究[J].西安石油大学学报(自然科学版),2011,26(4):12-18,7.

基金项目

国家自然科学基金项目(编号:40972141)资助 (编号:40972141)

西安石油大学学报(自然科学版)

OA北大核心CSTPCD

1673-064X

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