运用存水率和水驱指数评价油田注水开发效果

Using Water Storage and Water Drive Index to Evaluate the Effect of Water Flooding Oilfield

存水率和水驱指数是综合评价注水开发效果的两项重要指标。从存水率和水驱指数的定义出发,给出了存水率和水驱指数表达式。并以鄯善油田为例,指出当油田实际存水率和水驱指数的点落在标准曲线上或附近时,开发效果向规划目标方向发展,油田目前的注采结构合理;如果实际存水率点落在标准曲线的下方,说明指标偏低,开发效果较差。

Water storage and water drive index are two important parameters to evaluate the effect of water flooding reservoir. According to definitions of water storage and water drive index, the expressions of water storage and water drive index are given. Taking Shanshan oilfield for example, it is noted that if the points of actural water storage and water drive index are on or near the standard curve, the effect of water flooding is going toward planned target and the existing injection-production structure is reasonable; if the points of actual water storage drop down the standard curve, it shows low target and poor effect of water flooding reservoir.