关键词: 油田开发,    ,  , 原始含油,    ,  J 函数,    ,  油藏数值模拟

Abstract: In view of the different flooding degree of waterflooding oil field, the oil saturation model established with oil saturation curve from logging interpretation in the past can’t meet the demand of oilfield development. In order to reflect the original oilbearing state of strata more truly, the capillary pressure of reservoir is converted into J function firstly. And then we get the relationship between J function and water saturation with multiple regression. Finally, via multiple regression, we establish the relation between oil saturation and porosity, permeability and oil column height calculated with oilwater interface and reservoir structure depth, and thus obtain threedimensional oil saturation field, which provide accurate basis for reserves recalculation and reservoir numerical simulation.

Key words: Oil development,    , Original oilbearing,    ,  J function,    ,  Reservoir numerical simulation