油田开发后期储采比预测模型及应用

Prediction Model and Application of Storage and Production Ratio in Late Stage of Oilfield Development

在油田进入开发后期之后,储采比双对数线性曲线会出现偏离和翘尾现象。本文对水驱开发将近结束的典型油田数据进行了深入研究,出了一种适合于油田开发后期的新储采比预测模型,能够较好的描述后期储采比变化规律,预测油田有效开发年限。对油田后期开发规划具有一定的参考价值。

After the oilfield enters the late development stage, the double logarithmic linear curve of the storage and production ratio will show deviation and tailing. Based on thein-depth research on typical oilfield data near the end of waterflooding development,this paperdevelops a new prediction model for calculating the storage and production ratio at the late stage of oilfield development.The model can better describe the changing rules and predict theoilfield’s expire date, which has certain reference value for theplanning of the oilfielddevelopmentat the late stage.