【摘要】 在大量岩心描述的基础上,结合室内岩石薄片鉴定、铸体薄片孔隙特征分析及显微照相,对松辽盆地深层火山岩储层成岩序列与孔隙演化进行了研究,认为其岩石类型主要为玄武岩、安山岩、流纹岩、凝灰岩、火山角砾岩等;其储集空间类型为原生孔隙、原生裂缝、次生孔隙、次生裂缝4种;其储层成岩作用和孔隙演化可分为2期、4个阶段,即喷发期和后喷发期,进一步分为岩浆冷凝阶段、热液作用阶段、表生成岩阶段和埋藏成岩阶段。含二价铁矿物的交代作用、断裂作用、压溶作用、深层溶蚀作用和油气聚集作用等事件影响了储集空间的发育。更多还原

【Abstract】 Based on core description,thin section analysis,pore character and microphotograph,the diagenesis and pore evolution of deep volcanic reservoirs in Songliao Basin are studied.It is believed that the rock types are mainly basalt,andesite,rhyolite,tuff and volcanic breccia.The reservoir spaces include primary pore,primary fracture,secondary pore and secondary fracture.The diagenesis and the pore evolution could be divided into two stages(eruption stage and post-eruption stage) which include condensation phase,thermogenesis phase,hypergenesis phase and burial diagenesis phase.The reservoir spaces are affected by the diagenesis events including metasomatism,faulting,pressure solution,deep denudation and hydrocarbon aggregation.更多还原