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通过岩心标本、铸体薄片、扫描电镜、图像孔隙、压汞等实验分析手段,对安塞油田砖窑湾区块长8储层特征进行了分析,从结果来看:砖窑湾地区延长组长8储层岩石类型以深灰色、灰色、中细砂岩为主,碎屑组成主要以长石、石英及岩屑为主,整体上细粒成分含量高,粒度小。孔隙度、渗透率较小,属于低孔低渗储层。孔隙类型以粒间孔最为发育,吼道类型属于小-微孔隙、微细-微喉道类型。
The characteristics of the Chang 8 reservoir in the Block of the brick kiln in Ansai Oilfield were analyzed by means of laboratory specimens such as core samples, cast thin films, scanning electron microscopy, image pores and mercury intrusion. According to the results, The rock types of the reservoirs are mainly dark gray, gray and medium fine sandstones. The detritus mainly consists of feldspar, quartz and rock fragments, and the content of fine grains is high and the grain size is small as a whole. Porosity, permeability is small, belong to the low porosity and permeability reservoir. The type of pore is the most developed among the intergranular pores, and the type of roar belongs to small-microporosity and micro-throat type.