为了搞清火山岩储层储集空间发育特征,利用13口井的岩心观察资料和镜下薄片资料以及19口井200块分析测试资料统计结果,对松辽盆地徐深气田徐东地区营城组一段火山岩储层储集空间特征进行了详细研究.结果表明,研究区目的层储集空间可以划分为原生和次生2大类8小类,原生储集空间中主要包括气孔、粒间孔、粒内孔、炸裂缝等4种类型；次生储集空间主要包括粒内溶孔、粒间溶孔、构造缝、溶蚀缝等4种类型.研究区目的层主要发育孔隙型、裂缝—孔隙型、孔隙—裂缝型和裂缝型4种储集空间类型,其中以裂缝—孔隙型(44.38％)和孔隙型(42.45％)为主,各类孔隙是储集空间,而各类裂缝主要起渗流通道的作用,不同岩性之间储集空间差异明显.%In order to make clear of the AS development characteristics of volcanic reservoir, with the help of the data obtained from the core observations of 13 wells, the microsection date and moreover the statistic results of the analyses and tests of 200 core samples from 19 wells, the AS characteristics are studied in detail for No. 1 Member volcanic reservoir of Yingcheng Formation in Xudong Area of Xushen Gasfield of Songliao Basin. The results show that the AS of the target reservoirs in the study area can be divided into 2 types; primary and secondary and 8 subclasses. The former mainly includes 4 types: gas pore, intergranular pore, intragranular pore and exploded fracture ; the later generally contains 4 kinds as well: intragranular dissolved pore, intergranular dissolved pore, structural and dissolved fractures. The 4 AS types are principally developed in the target reservoirs in the study area i. e. pore, fracture-pore, pore-fracture and fracture. Among them, the types of fracture-pore (44. 38% ) and pore-fracture (42. 45% ) take absolute advantages, all kinds of pores are AS and all kinds of fractures mainly play thernrole of flow channels, there are obvious differences in AS among various kinds of lithologies.
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