碳酸盐岩油藏注水开发效果评价方法

Evaluation Method of Water-flooding Development Effect in Carbonate Reservoir

碳酸盐岩油藏与砂岩油藏不同,针对碳酸盐岩油藏的特点,提出了评价其注水效果的方法,通过采用产油量递减率、水驱特征曲线、含水上升率、及压力数据四个指标来评价碳酸盐岩油藏注水开发效果。其中水驱特征曲线还可以用来分析水体能量的大小,产油量递减率还可以用来选择注水时机和注水强度。

The carbonate reservoir is different from the sandstone reservoir, according to the charac- teristics of the carbonate reservoir, the evaluation method of water--flooding development effect is pro- posed, through the use of oil production decline rate, water drive characteristic curve, water cut rising rate, and the pressure data, these four index can evaluate carbonate reservoir water flooding development effect. The water drive characteristic curve also can be used to analysis the size of the water energy, oil production decline rate also can be used to select timing of water injection and water--flooding strength.