油藏采收率是衡量油田开发效果和开发水平的最重要的综合指标。若单纯用某一种方法计算采收率都具有局限性。结合官1断块已经进入开发后期的实际情况，本次采收率预测采用三种方法：水驱特征曲线法、产量递减分析法及无因次注采曲线交汇法。通过采收率评价综合分析目前的开采条件是否适应油藏的特点，是否充分利用了现有储量。%EOR is the most important comprehensive index to assess the level of oil field development. Any single method used to calculate the recovery rate has its limitations. Combined with the actual situation, three methods were used to predict the recovery rate, which include the water drive characteristic curve method, production decline analysis method and dimensionless injection-production curve intersection method. Through the recovery evaluation we can present comprehensive analysis on the adaptation of mining conditions with the characteristics of oil reservoir, and improve the full use of existing reserves.
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