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为更清洁的气体生产优化酸性微乳液:关于增强吸附特性和延迟影响的研究
Qing Wang1, Fujian Zhou2, Hang Su3
1State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing, 102249, China; Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
The Science of the total environment
|July 11, 2024
概括
负电荷的极性化合物增强了岩石表面的微乳液吸附,显著改善了用于石油回收的酸延迟. 这项研究确定了用于表面清洁和水库处理的有效微乳液.
科学领域:
- 石油工程是石油工程中的一个.
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
背景情况:
- 微乳液提供较低的界面张力和溶解,对于表面清洁和增强油脂回收有价值.
- 微乳液可以吸附到岩石上,作为酸减缓添加剂,但它们的吸附模式需要澄清.
- 了解微乳液吸附对于优化它们在酸化低透性水库中的使用至关重要.
研究的目的:
- 为了研究不同表面活性剂,油芯和添加剂的微乳液的相位行为和吸附特性.
- 为了确定增强吸附的微乳液,以改善油田应用中的酸延迟.
- 评估优化微乳液的吸附模式和流量适应性.
主要方法:
- 用不同的电表面活性剂和油芯添加剂合成和表征微乳液.
- 阶段行为分析和吸附实验,以评估微乳液性能.
- 在模拟水库条件下的反应动力学研究和动态吸附试验.
- 扫描电子显微镜用于可视化岩石表面上微乳液膜的形成.
主要成果:
- 包含负电荷极性化合物的微乳液表现出增强的吸附性,液滴大小在酸混合后低于30nm.
- 这些增强微乳液的吸附率增加了177%,静态阻滞效应改善了81%.
- 动态吸附动力学遵循伪二阶模型,随着固定流速的微乳液度的增加,延迟会增加.
- 微乳液在岩石表面形成了一层保护膜,降低了酸岩反应速率,SEM证实了这一点.
结论:
- 负电荷的极性化合物是开发有效的基于微乳液的酸阻滞添加剂的关键.
- 该研究提供了选择和应用微乳液的实用指南,以提高化学处理的生态兼容性.
- 优化的微乳液显示出在具有挑战性的水库条件下增强石油回收和表面清洁应用的巨大潜力.
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