| 松辽盆地南部地区营城组典型火山机构地质特征 |
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| 引用本文： | 迟唤昭,董福湘,薛晓刚,刘财,司考.松辽盆地南部地区营城组典型火山机构地质特征[J].吉林大学学报(地球科学版),2019,49(6):1649-1657. |
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| 作者姓名： | 迟唤昭 董福湘 薛晓刚 刘财 司考 |
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| 作者单位： | 1. 长春工程学院勘查与测绘工程学院, 长春 130021;2. 吉林大学地球探测科学与技术学院, 长春 130026;3. 吉林大学校友联络和教育基金管理处, 长春 130012 |
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| 基金项目： | 吉林省科技发展计划项目（20180101310JC）；吉林省教育厅科学技术项目（JJKH20180990KJ）；长春工程学院校基金项目（320160015） |
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| 摘 要： | 在松辽盆地地质背景研究的基础上，根据盆地南部地区营城组火山岩地质特征对火山机构进行分类，描述其地质特征，并讨论其储层特征。将研究区火山机构分成3类9种，即熔岩类火山机构、碎屑岩类火山机构和复合火山机构3类；熔岩类火山机构包括粗面质熔岩火山机构、玄武质熔岩火山机构、安山质熔岩火山机构、英安质熔岩火山机构和流纹质熔岩火山机构，碎屑岩类火山机构包括玄武质碎屑岩火山机构、安山质碎屑岩火山机构和流纹质碎屑岩火山机构，以及复合火山机构共计9种。并统计了不同类型流纹质火山机构储层的储集空间类型及孔隙度，结果表明：流纹质复合火山机构储集空间类型复杂，储层溶蚀孔缝十分发育，储层物性最好；流纹质碎屑岩火山机构储层溶蚀孔缝较为发育，储层物性中等；流纹质熔岩火山机构储集空间类型单一，储层物性最差。将长岭断陷火山机构内部储层分为高孔-高渗型、中孔-中渗型和低孔-低渗型3类，且有利储层受岩性影响较小，受岩相影响较大。
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| 关 键 词： | 松辽盆地 营城组 火山机构 储层物性 流纹质 长岭断陷 |
| 收稿时间： | 2018-08-10 |
Geological Characteristics of Typical Volcanic Edifices of Yingcheng Formation in Southern Songliao Basin |
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| Chi Huanzhao,Dong Fuxiang,Xue Xiaogang,Liu Cai,Si Kao.Geological Characteristics of Typical Volcanic Edifices of Yingcheng Formation in Southern Songliao Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2019,49(6):1649-1657. |
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| Authors: | Chi Huanzhao Dong Fuxiang Xue Xiaogang Liu Cai Si Kao |
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| Institution: | 1. School of Prospecting & Surveying Engineering, Changchun Institute of Technology, Changchun 130021, China;2. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China;3. Fund Management Office, Jilin University, Changchun 130012, China |
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| Abstract: | This study aims to construct the volcanic edifices,and discuss the characteristics of the different volcanic edifices and the reservoir of Yingcheng Formation in the southern area of Songliao Basin. The volcanic edifices of the study area are divided into 3 kinds and 9 types (trachytic lava, basaltic lava, andesitic lava, dacitic lava, rhyolitic lava, basaltic clastic rock, andesitic clastic rock, rhyolitic clastic rock,and composite volcanic edifices). In addition, the statistics of different reservoir types and porosity suggest that the rhyolitic composite volcanic edifices have the best reservoir characteristics, and the solution pores are important pore type; rhyolitic clastic volcanic edifices have the worse and the worst reservoir characteristics belong to the rhyolitic lava. The reservoir in Changling fault depression is divided into three types:high porosity-high permeability reservoir, middle porosity-middle permeability reservoir, and low porosity-low permeability reservoir. The favorable reservoir is mainly affected by lithofacies rather than lithology. |
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| Keywords: | Songliao basin Yingcheng Formation volcanic edifices reservoir characteristics rhyolitic Changling fault depression |
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