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针对缺乏或者没有典型油水相渗曲线的油田,提出利用含水率与累积产油量水驱特征曲线直线段,定量确定调整井水淹状况的方法。同时还提出利用含水率、驱油效率共同评价水淹程度的方法。上述方法能够相对准确地反映地下水淹状况,克服了水淹研究中对于岩心相渗曲线实验数据的依赖,具有较强实用性。
Aiming at the lack or absence of the typical oil-water permeability curve, a method is proposed to quantitatively determine the condition of water flooding in the well by using the straight line of the water cut-off curve and the water yield curve of the cumulative oil production. At the same time, a method of using water cut and flooding efficiency to evaluate water flooding is proposed. The above method can relatively accurately reflect the status of groundwater flooding and overcome the dependence on the experimental data of the core permeability curve in the flooding study, which is of strong practicability.