摘要
从研究峨眉山玄武岩的岩性、岩相和储层特征入手,分析峨嵋山玄武岩孔隙、裂缝等储集空间的形成分布规律。其岩性主要为熔岩类玄武岩,火山碎屑岩和火山沉积岩;岩相分为溢流相、爆发相和火山沉积相;其储集空间主要是原生气孔、溶蚀孔隙和裂缝;溶蚀火山角砾岩,气孔玄武岩和裂缝发育的致密玄武岩是区内最好的储集岩类。
Based on the research on basaltic lithology, of lithology, lithofacies and reservoir characteristics in the Emeishan , we analyze the formation and distribution of basalts reservoir spaces including pores and fractures. The lithology is mainly composed of lava basalt, pyroclastic rock and volcanic sedimentary rock. The Lithofacies is usually classified into overflow, explosive and volcanic sediment facies. The reservoir space is mainly composed of primary or dissolved pores and fractures. The best reservoir rocks in the area are dissolution volcanic breccias, vesicular basalt and tight basalts with developed fractures.
出处
《天然气勘探与开发》
2006年第1期17-20,共4页
Natural Gas Exploration and Development
基金
四川省重点学科建设项目<矿产普查与勘探>经费资助
编号SZD0414
关键词
峨眉山
玄武岩
岩相
储集层评价
Emeishan basalts, lithofacies, pores, fractures , reservoir evaluation
