水驱油藏二维剖面的含水饱和度分析法

目的探求一种计算不同时刻非均质油藏含水饱和度分布与前沿饱和度位置的简便、实用的预测方法。方法以油藏数值模拟网格化理论与Buckley-Leverett油水两相饱和度移动方程为基础,采用计算机编程技术建立二维网格化非均质油层模型前沿饱和度所在位置与含水饱和度分布的计算方法。结果结合实际生产过程中油井的生产制度,通过计算数学中线性插值法求解出了模型中任意一点含水饱和度值与前沿饱和度位置。结论该方法通用性强,可用于新老水驱开发油田的动态预测。

A method of water saturation in bidimensional waterflooding reservoir

Aim To find a simple and practical prediction method for solving water saturation distribution and frontier saturation position at any moment in aeolotropic reservoir.Methods Based on the Buckley-Leverett Saturation Movement Equation and the grid theory of Numerical Reservoir Simulation,a bidimensional gridding aeolotropic reservoir model is established and a computational method is proposed for solving the above-mentioned problems via computer programming.Results Through being applied in practical petroleum production,this computational method can solve the water saturation and the frontier saturation position of any moment in reservoir model via linear interpolation of computational mathematics.Conclusion Practical applications prove that this computational method has strong universality,can be used for oilfield waterflooding dynamic prediction.