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北三台地区石炭系火山岩地层作为储层的岩性主要包括安山岩、玄武岩、火山角砾岩以及凝灰岩,详细叙述了其岩石学特征,同时阐述了对该地区储层产生影响的主要因素。在对火山岩孔渗基本特征,孔隙结构和孔渗关系的研究基础上,对储层进行综合评价,将其分为5类,较好的火山岩储层平面分布呈带状或块状分布,西地一号背斜带及台50井阜康断裂东部区域储层类型级别较高,台48井以南和吉木萨尔凹陷为较差区域。
The lithology of the Carboniferous volcanic strata in Beisantai area mainly includes andesite, basalt, volcanic breccia and tuff. The petrological characteristics of the reservoirs are described in detail. The main factors affecting the reservoirs in this area are also described. Based on the study of the basic characteristics of porosity and permeability of the volcanic rock, pore structure and porosity and permeability, based on the comprehensive evaluation of the reservoirs, they are divided into five categories. The better volcanic reservoirs are distributed in flat or zonal distribution, The first type of anticline belt and the platform 50 in the eastern part of Fukang fault have higher reservoir types, south of platform 48 and Jimusar depression.