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多层二维二相数学模型无法解决层间窜流问题 ,改进后的多层拟三维数学模型考虑了纵向流动因素。在整体保留多层二维二相模型算法优势的前提下 ,把连通层层间的流动量作为假想的源汇项加到二维二相方程中 ,在二维模型上近似实现三维模型的功能 ,使层间连通的多层油藏模拟计算结果更接近于实际油藏。多层拟三维油藏模拟软件管理平台 ,实现了油藏数值模拟输入、输出和主模型的一体化管理 ,比三维三相黑油模型的运算速度快 ,扩大了模型算法的适应范围 ,提高了模拟精度。对胜利油区大芦湖油田沙三段中亚段进行的油藏数值模拟表明 ,其整体运行效率比黑油模型提高 32 .4%
Multi-layer two-dimensional two-phase mathematical model can not solve the problem of channeling between layers, and the improved multi-layer quasi-three-dimensional mathematical model considers the longitudinal flow. On the premise of preserving the advantages of the algorithm of multi-layer two-dimensional two-phase model as a whole, the flow between the connecting layers is added as an imaginary source and sink term to the two-dimensional two-phase equation to approximate the function of the three-dimensional model in the two-dimensional model , So that multi-reservoir reservoir connectivity simulation results closer to the actual reservoir. Multi-layer quasi-three-dimensional reservoir simulation software management platform to achieve the integration of reservoir numerical simulation input and output and the main model management, faster than the three-dimensional three-phase black oil model, expanding the scope of the model algorithm to improve and improve Simulation accuracy. The reservoir numerical simulation of the middle section of Es3 in the Daliu Oilfield of Shengli Oil Region shows that its overall operating efficiency is increased by 32.4%