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Updated: Jun 20, 2025

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页岩表面粘附工作的定量表征和基于原子力显微镜 (AFM) 的粗度影响的讨论
Xu Huo1,2, Linghui Sun1,2,3, Feiyu Chen1,2
1Engineering College, University of Chinese Academy of Sciences, Beijing 100190, China.
ACS omega
|July 22, 2024
概括
这项研究揭示了岩石表面粗程度如何影响液体粘附工作. 开发了一种新的湿度指数,以更好地测量粘附力,提高对岩石流体相互作用的理解.
科学领域:
- 地质化学 地质化学
- 材料科学 材料科学 材料科学
- 石化物理学 石化物理学
背景情况:
- 粘附工作量化固体-液体相互作用,但通常因表面粗而复杂.
- 传统的方法很难解释粘附的局部变化,阻碍了对岩石表面特性的研究.
研究的目的:
- 研究表面粗度和石质构成对固体-液体粘附工作的影响.
- 为了描述不同岩石区域的水/油-固体粘附作用的变化.
- 开发一个新的湿度指数,以减轻对粘附工作测量的粗度影响.
主要方法:
- 扫描电子显微镜 (SEM) 和接触角度分析以研究空洞形成和石质学.
- 原子力显微镜 (AFM) 检查局部水/油-固体粘附工作变化.
- 开发一个无维的湿度指数 (I).
主要成果:
- 观察到粗度和接触角度粘附工作之间的负相关性,异质性阻碍了液态岩石接触.
- 发现油固体粘附工作主要来源于石英,粘土矿物质和目标块中的有机物质.
- 增加内部岩石孔隙比例增强了表面油固体粘附工作.
- 开发的湿度指数与传统的评估方法有很强的相关性.
结论:
- 表面粗性和异质性显著影响液态岩石粘附工作.
- 局部粘附工作特征及其起源 (石英,粘土,有机物) 被划定.
- 孔隙结构影响着整体的粘附工作,而增加的孔隙性增强了油固体的粘附.
- 新的湿度指数有效地考虑了粗度,提供了更可靠的粘合功能的测量.
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