Hidayat Miftah, Megayanti Rima, Cahyaningtyas Ndaru, Sanmurjana Mahruri, Yahya Zeta Nur Muhammad, Siagian Utjok W R, Marhaendrajana Taufan
Department of Petroleum Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia.
Enhanced Oil Recovery Laboratory, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, Indonesia.
Front Chem. 2024 Nov 15;12:1457753. doi: 10.3389/fchem.2024.1457753. eCollection 2024.
The application of titanium dioxide nanoparticles in the petroleum research area has received ample attention in recent years owing to its impact on wettability-altering agents. Further, employing a surfactant injection to improve oil production in sandstone formations on an industrial scale has become an alternative solution, particularly for mature fields. However, the existing literature on the combination of alkyl ethoxy carboxylate (AEC) surfactant with titanium dioxide nanoparticles on the application of enhanced oil recovery in sandstone formations remains underreported. This study explores the impact of combining AEC surfactant with titanium dioxide nanoparticles on recovering trapped oil in sandstone by examining the interfacial tension, contact angle, zeta potential, and core flooding with various concentrations of added titanium dioxide nanoparticles (0, 0.01, 0.025, and 0.05 wt%) on AEC surfactant. Although the addition of 0.05 wt% TiO to AEC surfactant can significantly reduce the interfacial tension to the lowest value of 5.85 × 10 mN/m, our results show that the highest oil recovery in Berea sandstone (59.52% recovery factor) is achieved at the concentration of 0.025 wt% added TiO to AEC surfactant. We find that the stability of TiO nanoparticles on AEC surfactant plays a significant role in getting maximum oil recovery. These important findings from this study contribute to improving our understanding on the application of TiO combined with AEC surfactant to achieve more efficient and sustainable enhanced oil recovery in sandstone.
近年来，由于二氧化钛纳米颗粒对润湿性改变剂的影响，其在石油研究领域的应用受到了广泛关注。此外，采用表面活性剂注入在工业规模上提高砂岩地层的石油产量已成为一种替代解决方案，特别是对于成熟油田。然而，关于烷基乙氧基羧酸盐（AEC）表面活性剂与二氧化钛纳米颗粒结合在砂岩地层提高石油采收率应用方面的现有文献报道仍然较少。本研究通过考察界面张力、接触角、zeta电位以及在AEC表面活性剂中添加不同浓度（0、0.01、0.025和0.05 wt%）二氧化钛纳米颗粒的岩心驱替实验，探讨了AEC表面活性剂与二氧化钛纳米颗粒结合对砂岩中捕集油采收的影响。虽然向AEC表面活性剂中添加0.05 wt%的TiO₂可显著将界面张力降低至最低值5.85×10⁻³ mN/m，但我们的结果表明，在向AEC表面活性剂中添加0.025 wt% TiO₂的浓度下，在 Berea砂岩中实现了最高的石油采收率（采收率为59.52%）。我们发现TiO₂纳米颗粒在AEC表面活性剂上的稳定性在实现最大石油采收率方面起着重要作用。本研究的这些重要发现有助于增进我们对TiO₂与AEC表面活性剂结合应用以在砂岩中实现更高效和可持续的提高石油采收率的理解。
