A delta reservoir of layer 83 in the second member of Shahejie Formation of the Paleogene in the second district of Shengtuo oilfield has developed for 36 years with water flooding.

• 以注水开发36年的胜坨油田二区下第三系沙二段83小层的三角洲储层为例,应用岩心分析和渗流物理模拟数据,研究了渗流参数随注水开发的变化规律和机理,建立了渗流参数的润湿性模型、孔隙结构模型和相对渗透率模型。