Abstract In the present study, we try to numerically simulate the nanofluid flooding method, which is one of the newest methods in this field. For this purpose, the nanofluid is considered as a single phase fluid that enters the porous petroleum reservoir containing oil. Since all porous petroleum reservoirs are heterogeneous, the porous grid is also considered heterogeneous and is solved using the finite element numerical method. The geometry considered in this study is a two-dimensional anticline medium that is heterogeneous. In this study, the effect of using different volume fractions of nanoparticles in nanofluid is studied. Capillary pressure or diffusion are considered in simulation and their behavior in the solution domain is explored. To obtain the capillary pressure in the problem, the logarithmic method is used due to its faster convergence. Another important parameter to be considered is the amount of input fluid into the reservoir (debit), which three different values are considered. Also, the amount of saturated oil remaining in the reservoir, which is one of the inherent characteristics of the reservoir, has been investigated for four different values.

中文翻译：

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纳米流体驱提高非均质二维背斜几何中的石油采收率

摘要 在本研究中，我们尝试对纳米流体驱油方法进行数值模拟，该方法是该领域的最新方法之一。为此，纳米流体被认为是进入含油的多孔石油储层的单相流体。由于所有多孔油藏都是非均质的，多孔网格也被认为是非均质的，并使用有限元数值方法求解。本研究中考虑的几何形状是非均质的二维背斜介质。在这项研究中，研究了在纳米流体中使用不同体积分数的纳米颗粒的效果。在模拟中考虑了毛细管压力或扩散，并探索了它们在溶液域中的行为。为了获得问题中的毛细管压力，使用对数方法是因为它的收敛速度更快。另一个需要考虑的重要参数是进入油藏的输入流体量（借方），这三个不同的值被考虑在内。此外，油藏中剩余的饱和油量是油藏的固有特征之一，已针对四个不同的值进行了研究。