中文摘要：

通过分析岩心、镜下薄片及铸体薄片观察,从火山岩岩性岩相特征、储层孔渗条件、孔隙类型等方面研究了准噶尔盆地东部克拉美丽气田石炭系火山岩储层特征,探讨了火山岩有利储层空间类型、物性条件和可能的控制因素。研究表明：区内火山岩储层岩性主要为中基性玄武岩、安山岩和少量酸性流纹岩、火山碎屑岩以及正长斑岩等浅成侵入岩,且岩性的不同影响储层物性条件和储存效果。各岩性储层孔渗性变化范围较大,以火山角砾岩（平均孔隙度为12.42%,渗透率为0.796×10-3μm2）和玄武岩（平均孔隙度为10.73%,渗透率为0.289×10-3μm2）最优。整体孔渗类型包括：较高孔-中渗;较高孔-低渗;中孔-低渗和中低孔-低渗多种类型,总体表现为低渗透（〈1×10-3μm2）的储层特征。储集空间属于孔隙-裂缝双重介质型,主要的孔缝组合为：构造缝-溶蚀缝-溶蚀孔,原生气孔-构造缝-溶蚀缝-溶蚀孔和晶间孔-溶蚀孔。火山岩的岩性岩相、火山喷发的环境以及火山岩的后期改造是影响储集性能的重要因素。

英文摘要：

The volcanic rock reservoir characteristics including lithology,lithofacies,physical properties and pore type of volcanic rocks in Kelameili area of Jungger Basin were analyzed by observing drilled cores,casting sections and thin sections through microscope.The reservoir accumulation types,physical conditions and main affecting factors were also discussed in this paper.The studies show that the reservoir rocks in the area are intermediate-basic lavas ranging from basalt to andesite and a few rhyolite,pyroclastics and shallow intrusive rocks such as syenitic porphyry.Moreover,the types of reservoir rocks have a direct effect on the physical properties and reservoir quality.But physical property of volcanic rocks is heterogeneity.The physical properties of volcanic breccia（with 12.42 % porosity and 0.796×10-3 μm2 permeability） and basalt（with 10.73 % porosity and 0.289×10-3 μm2 permeability） are better than those of other rocks.The reservoirs are categorized into high porosity-intermediate permeability,high porosity-low permeability,intermediate porosity-low permeability and low porosity-low permeability.They mainly show the trait of low permeability（1×10-3 μm2）.Their accumulation type was multiplex pore-fracture reservoir,mainly containing tectonic fissure-corrosion fissure-corrosion pore,gas pore-tectonic fissure-corrosion fissure-corrosion pore and intercrystal pore-corrosion pore.The capability of the reservoir is greatly affected by the lithofacies of volcanic rocks,volcanic eruption environment and the later reformation.