喇萨杏油田套管损坏损失采收率的测算方法

针对大庆喇萨杏油田开发以来套损比较严重的实际情况,从分析套损影响采收率的机理出发,考虑套损时套损区的含水、套损井数比及套损严重程度对采收率的影响.利用数值模拟的计算结果,建立了不同套损井数比、不同含水情况下套损损失采收率的计算模型,为井点完全缺失和部分缺失情况下,定量预测套损损失可采储量提供了一种方法,并给出了计算实例.分析结果表明,套损损失采收率主要受套损区块套损前后水驱控制程度变化、套损时含水和套损前采收率的影响,油田套损时套损区块含水越低、套损井数比越高,损失采收率越大.

Method to estimate recovery factor loss due to casing damage in LaSaXing oilfields

The casing damage is serious in LaSaXing oilfields since the development. So, the effect of water cut in casing damage areas, casing damage wells ratio and casing damage degree on the recovery factor is analyzed based on the the models to calculate the recovery factor loss resulted different water cut have been built. This method can be by casing damage under different casing damag used to quantitatively estimate the recoverable e well ratios and reserves loss due to casing damage when the well sites are total or partial absent. In this paper, the calculation example is listed.