A total of 78 sandstone core samples were obtained from the NES-2 well of the SWS field in the Abu Sennan area to assess the reservoir properties of the Middle Zone of the Bahariya Formation. It comprises carbonate, silt, and shale with sandstone interbeds, where the sandstone was targeted as it represents the main production zone in the studied area. The studied samples were subjected to porosity and permeability measurements, where the relationship between them showed the reservoir heterogeneity in terms of flow properties. Capillary pressure correlations displayed four hydraulic flow units with different performances within the studied samples in accordance with r35 parameter classification. The very permeable flow unit (megaport) constitutes 92% of the total flow capacity. Other petrophysical parameters such as apex, pore throat radii, reservoir quality index (RQI), and turbulence factor (β) were used to confirm the previous results and deeply evaluate the studied reservoir samples. Petrographically, the Middle Zone of the Bahariya Formation is represented by intercalations of siltstone, quartz arenite (the common facies), quartz wacky, and sandy siltstone facies from base to top. These microfacies represent the different petrophysical flow units.

In terms of log evaluation, the middle zone of the Bahariya sandstone reservoir is characterized by a net pay thickness of about 6.9 m in the NES-2 well and marked by (Vsh = 0.05, φE = 0.24, and Sw = 0.4) as an oil producer. All the results were consistent and confirmed that the Middle Zone of the Bahariya Formation has excellent reservoir capabilities. Megaport flow units of the highest flow rate nature are predominant and nearly constitute the flow capacity, hence the reservoir may suffer some productivity loss under the turbulence flow conditions or the moving fines.

共有78块砂岩从阿布森南地区SWS油田的NES-2井中获取了岩心样品，以评估Bahariya组中部地区的储层性质。它由碳酸盐岩，粉砂岩和页岩与砂岩夹层组成，以砂岩为目标，因为它代表了研究区的主要产油区。对所研究的样品进行孔隙度和渗透率测量，它们之间的关系显示了流动特性方面的储层非均质性。毛细管压力相关性根据r35参数分类显示了所研究样品中具有不同性能的四个液压流量单元。渗透性极强的流量单位（兆端口）占总流量的92％。其他岩石物理参数，例如顶点，孔喉半径，储层质量指数（RQI），湍流因子（β）和湍流因子（β）被用于确认先前的结果并深入评估研究的储层样品。岩石学上，Bahariya组的中部带由从底部到顶部的粉砂岩，石英砂岩（常见相），石英古怪和砂质粉砂岩相的夹层。这些微相代表了不同的岩石物理流动单元。

就测井评估而言，Bahariya砂岩储层中部区域的特征是NES-2井中的净产层厚度约为6.9 m，并以（Vsh = 0.05，φE= 0.24和Sw = 0.4）标记为石油生产国。所有结果都是一致的，并证实了巴哈里亚组的中部地区具有出色的储层能力。具有最高流量性质的Megaport流量单位占主导地位，几乎构成流量，因此，在湍流条件或细粉运动下，储层可能会遭受某些生产率损失。