Z区Q4^3层水驱开发效果评价研究

Evaluation of the Water Drive Development Effect of Central Q4~3 Strata

针对目前W油田Z区Q43层的开发现状,通过存水率,注入体积倍数,含水率和采收率等开发效果评价指标对区块进行综合分析,了解现阶段存在的主要问题,便于下一步油田开发进行措施调整。评价指标表明,Z区Q43层区块历年开发过程中,存在含水上升过快导致注入水利用率严重下降的状况,开发后期的措施调整起效,达到了稳油降水的效果。

Aiming at the present development status of central Q43 strata, the effect evaluation indexes including water storage rate, total injection volume, composite water cut and oil recovery were used to analyze the oilfield,and the main problems were found out. The evaluation indexes indicated that, the water cut fast rose after the central Q43 strata was developed for many years, which made the utilization rate of injected water reduce. Good application effect of some measures was obtained in the later development, and the target to control water cut and stabilize oil production was realized.