地质通报2017，Vol.36Issue(4)：644-653,10.
内蒙古二连盆地阿南凹陷腾格尔组一段下部特殊岩性段储集性能
Reservoir property of the special lithologic section in the lower Tengger Formation of A'nan depression, Er'lian basin
摘要
Abstract
Although A'nan depression has been well prospected in past years,no lithologic reservoir has been discovered.The special lithologic section of the Tengger Formation is the potential reservoir strata.Based on lithologic characterization,scanning electronic microscopy,and electron probe measurement,the authors investigated the reservoir properties of the special lithologic section.The lithologic section is mainly composed of gray dolomitic mudstone,argillaceous dolomite,calcareous sedimentary stuff and calcareous fine sandstone intercalated with gray green massive tuff.The calcareous cementation and clayey cementation are the main types of cementation.The tuff and sedimentary tuff elemental geochemical analysis shows that,with the alteration of diagenesis fluid,the silicate and sedimentary tuff dissolved significantly,which led to abundant secondary pores and strong depletion of heavy rare earth elements.These secondary pores and intergranular pores together with micro-fracture constitute the main potential reservoir space and the migration paths of the hydrocarbon.关键词
沉凝灰岩/成岩作用/储集性能/特殊岩性段/阿南凹陷/二连盆地Key words
sedimentary tuff/diagenesis/reservoir property/special lithologic section/A'nan depression/Er'lian basin分类
天文与地球科学引用本文复制引用
孙振孟,钱铮,陆现彩,郭琴,徐金覃,史原鹏,胡文瑄..内蒙古二连盆地阿南凹陷腾格尔组一段下部特殊岩性段储集性能[J].地质通报,2017,36(4):644-653,10.基金项目
国家科技重大专项《大中型油气田分布规律与差异性研究》(编号:2016ZX05002-006-005) （编号:2016ZX05002-006-005）
