水驱曲线在复杂多层油藏中的适应性分析

Study of Water Flooding Curve Applied in Complicated Multi-Layers Reservoir

摘要: 水驱曲线是目前最常用的油藏工程方法之一，很多学者致力于研究水驱曲线的理论基础、适用条件以及提高其精度的方法。目前，很多学者已经提出了各种各样的水驱曲线，但其在复杂多层油藏中的适应性研究却很少。本文首先探讨了水驱曲线的理论基础，并从数学角度分析了水驱曲线在复杂多层油藏中的适应性，进一步指出水驱曲线在复杂多层油藏中应用存在的问题，并给出了解决方法。通过数值模拟敏感性分析及中东某典型复杂多层碳酸盐岩油藏实际生产数据，验证了本文提出方法的可靠性，对复杂多层油藏指标预测及动态跟踪分析具有一定的借鉴意义。

Abstract: Water flooding curve is one of the most commonly used reservoir engineering method. Many re-searchers devote themselves to study theoretical basis, application conditions and methods to improve accuracy of water flooding curve. At present, different kinds of water flooding curves were proposed by many scholars, but few studies focused on adaptation of water flooding curve on complicated multi-layers reservoir. In the paper, theoretical basis of water flooding curve was discussed, then adaptation of water flooding curve on complicated multi-layers reservoir was analyzed in view of mathematics. On the basis of that, existing problems and solutions were given when water flooding curve was used in complicated multi-layer reservoir. Validity of the method proposed was verified by sensitivity analysis of numerical simulation and actual production data of some typical complicated multi-layer carbonate reservoir in the Middle East. The proposed method has reference significance for index forecast and dynamic analysis of complicated multi-layer reservoir.