梅塔区水驱开发效果评价及调整方法研究

Study on water flooding effect evaluation and adjustment method of Meita block

首先对梅塔长2油藏进行水驱效果评价,分析油藏水驱开发过程中存在的问题,后针对这些问题提出相应的调整措施,效果评价方法和调整方法可以为后续开发提供理论依据。结果表明,梅塔区全区累计注采比低,注采平衡呈局部不均匀状态,经过完善井网、提高水驱控制程度和配注优化后效果良好,日增油6.7t,预测水驱采收率22.3%。

This paper first evaluates the water flooding effect,analyzes the problems existing in the process of water flooding,and then puts forward corresponding adjustment measures for these problems.The effect evaluation method and adjustment method can provide theoretical basis for subsequent development.The results show that the cumulative injection production ratio of the whole area is low,and the injection production balance is locally uneven.After improving the well pattern,improving the degree of water flooding control and injection allocation optimization,the effect is good.The daily oil increase is 6.7t,and the predicted water flooding recovery is 22.3%.