In the petroleum industry, the researchers have developed a new technique called enhanced oil recovery to recover the remaining oil in reservoirs. Some reservoirs are very complex and require advanced enhanced oil recovery (EOR) techniques containing new materials and additives in order to produce maximum oil in economic and environmental friendly manners. In this work, the effects of nanosuspensions (KY-200) and polymer gel HPAM (854) on oil recovery and water cut were studied in the view of EOR techniques and their results were compared. The mechanism of nanosuspensions transportation through the sand pack was also discussed. The adopted methodology involved the preparation of gel, viscosity test, and core flooding experiments. The optimum concentration of nanosuspensions after viscosity tests was used for displacement experiments and 3 wt % concentration of nanosuspensions amplified the oil recovery. In addition, high concentration leads to more agglomeration; thus, high core plugging takes place and diverts the fluid flow towards unswept zones to push more oil to produce and decrease the water cut. Experimental results indicate that nanosuspensions have the ability to plug the thief zones of water channeling and can divert the fluid flow towards unswept zones to recover the remaining oil from the reservoir excessively rather than the normal polymer gel flooding. The injection pressure was observed higher during nanosuspension injection than polymer gel injection. The oil recovery was achieved by about 41.04% from nanosuspensions, that is, 14.09% higher than polymer gel. Further investigations are required in the field of nanoparticles applications in enhanced oil recovery to meet the world's energy demands.

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纳米颗粒和聚合物驱替原油提高采收率的化学驱油实验研究

在石油工业中，研究人员开发了一种称为增强采油率的新技术，以回收储层中剩余的石油。一些储层非常复杂，需要先进的增强采油技术（EOR），其中包含新材料和添加剂，以便以经济和环境友好的方式生产最大的石油。在这项工作中，从EOR技术的角度研究了纳米悬浮液（KY-200）和聚合物凝胶HPAM（854）对油采收率和含水率的影响，并比较了它们的结果。还讨论了纳米悬浮液通过沙包的传输机理。所采用的方法涉及凝胶的制备，粘度测试和岩心驱油实验。粘度测试后，将纳米悬浮液的最佳浓度用于置换实验，纳米悬浮液的3 wt％浓度可提高采油量。另外，高浓度会导致更多的团聚。因此，发生了较高的岩心堵塞，并使流体流转向未吹扫的区域，以推动更多的油产生并减少含水率。实验结果表明，纳米悬浮液具有堵塞水通道小偷区域的能力，并且可以将流体流转向未扫掠区域，从而从储层中过度回收剩余的油，而不是正常的聚合物凝胶驱替。在纳米悬浮液注射期间观察到的注射压力高于聚合物凝胶注射。从纳米悬浮液，即14，获得了约41.04％的采油率。比聚合物凝胶高09％。纳米颗粒在提高采油率方面的应用领域还需要进一步研究，以满足全球能源需求。