非均质油层水淹程度对开发效果的影响分析

本文利用概念模型和数值模拟方法，研究了非均质油层不同水淹程度对开发效果的影响，计算了不同水淹程度对采出程度及含水率的影响，给出了非均质油层组合开发的最大水淹程度。结果表明：当开发时间相同时，未水淹与低水淹油层的组合开发效果最好，中水淹与高水淹的组合开发效果最差；不同水淹组合的单层采出程度差异较大，当含水98%时，与水淹程度高的油层组合开发时间短，采收率低。

Anlysis on the influence of non-homogeneous pay flooding level to oilfield development

In this paper, numerical simulation and conceptual model are used to research the influence of different flooding oil layers to the development effect. The influence of different flooding oil layers to the water cut and recovery percent are calculated in this paper and the largest level flooding of non-homogeneous pay is provided. The results show that the best flooding oil layers combination is no-low flooding combination for the oilfield development, the worst one is middle-high combination at a fixed time. The difference of recovery percent of layer which has different flooding degree is large, When the water cut has reached 98%, the development time of which combined with high flooding level is comparatively short and the recovery ratio of that is comparatively low.