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本文根据气藏成因及储层岩性，将松辽盆地北部深层划分为层状构造砂岩、古潜山花岗岩风化壳、地层超覆砾岩、火山岩岩性、不整合面下的千枚岩和不整合面上的砾岩６种类型气藏；阐述了深层气藏的形成条件，即具有面积和厚度大的生烃断陷，能够进行天然气运移的侏罗系顶和基岩顶的２个不整合面，存在于侏罗系地层周边的地层超覆圈闭，以及致密砂岩、砾岩、火山岩和花岗岩储集层；并指出了天然气藏分布规律是以烃源岩区为中心，向外依次为地层超覆气藏、层状构造气藏，火山岩气藏分布于斜坡区，基岩风化壳气藏分布于古凸起上。
Based on the genesis of gas reservoirs and reservoir lithology, the deep division of northern Songliao Basin into layered sandstone, ancient buried hill granite weathering crust, stratigraphic overlying conglomerate, volcanic lithology, phyllite under unconformity and 6 types of conglomerate on the unconformity surface, and expounds the formation conditions of deep gas reservoirs, that is, the hydrocarbon-generating faults with large area and thickness, the top 2 and the top of the Jurassic top that can transport natural gas Unconformity, overlying traps in the strata around the Jurassic strata, as well as tight sandstone, conglomerate, volcanic rock and granite reservoirs. It is also pointed out that the distribution of natural gas reservoirs is based on hydrocarbon source rocks and The outer layers are overrun gas reservoirs and layered gas reservoirs. The volcanic gas reservoirs are distributed in the slope area. The bedrock weathering gas pools are distributed on the ancient bumps.