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一种用于EOR的新型纳米表面活性剂:两性碳量子点 (ACD)

Mingwei Zhao^1,2, Xinyue Yang^1,2, Zhenfeng Ma^1,2

¹Shandong Key Laboratory of Oilfield Chemistry, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.

Langmuir : the ACS journal of surfaces and colloids

|August 25, 2025

概括

两碳量子点 (ACD) 通过自发浸泡,在低透度的油库中显著提升油的回收. 与水相比,这些新型纳米颗粒可提高22%以上的回收率,提供了有前途的EOR解决方案.

科学领域:

材料科学
石油工程
纳米技术

背景情况:

纳米颗粒通过在低透性储存中自发浸泡,显示了增强石油回收 (EOR) 的潜力.
两性碳量子点 (ACD) 是具有可调节性质的新型纳米材料.

研究的目的:

合成和描述新型的两性碳量子点 (ACD).
通过在低透性水库中的自发浸泡来提高ACD的有效性.
调查ACD驱动的EOR背后的机制.

主要方法:

通过酸和长链初级氨基酸的热解合成四种新型ACD.
使用高分辨率传输电子显微镜 (HRTEM) 和X射线光电子光谱 (XPS) 的表征.
自发浸泡实验和核磁共振 (NMR) 分析

主要成果:

通过HRTEM和XPS成功合成平均颗粒大小为3.4纳米的ACD.
ACD表现出卓越的稳定性,界面形学和可湿性逆转能力.
在自发浸泡试验中,ACD溶液的油回收率高于去离子化水的22.10%.

结论:

开发的ACD有效地通过自发浸泡来增强石油的回收,特别是在低透度的水库中.
增强的恢复是由于ACD的小尺寸,较低的界面张力和可湿性变化的结合作用.
基于纳米技术的ACD为提高EOR效率提供了一个有前途的解决方案.

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