【摘要】 松辽盆地齐家古龙凹陷扶杨油层中的次生孔隙较发育 ,次生孔隙类型包括溶蚀粒间孔、溶蚀粒内孔、溶蚀填隙物内孔及溶蚀裂缝孔 ,并以溶蚀粒内孔为主 ,尤其以长石粒内溶孔最为发育。在纵向上 ,次生孔隙具有三个集中发育带 ;在平面上 ,次生孔隙主要分布在齐家古龙凹陷的边部。研究区内次生孔隙的形成主要与油水界面烃类水解产生的酸性离子有关更多还原

【Abstract】 Secondary porosity is developed in the Fuyang reservoir of Qijia-Gulong region in the Songliao basin. The types of secondary porosity include intergranular porosity,intragranular porosity,intracement porosity and fracture. The intragranular porosity is the dominant type,and the dissolution of feldspar is common. In the vertical direction,the secondary porosity has three developed zones.On the plane distribution,the secondary porosity is principally in the margins of Qijia-Gulong Depression. General studies suggest that the mechanisms of the secondary porosity are basically related to the acid anions from light hydrocarbons reacting with H 2O at the oil-water interface and the infiltration of fault zones.更多还原