碳酸盐水库表面模拟平台用于CO2海水混凝土洪水
Abhishek Ratanpara1, Daniel Guerrero1, Diana Cho1
1Department of Ocean and Mechanical Engineering, Florida Atlantic University, Boca Raton, FL 33431, USA. kimm@fau.edu.
Lab on a chip
|November 24, 2025
概括
这项研究介绍了一种新型的微流体平台,使用碳酸注入的PDMS来模仿油湿碳酸盐岩石,用于增强石油回收 (EOR) 研究. 该平台通过模拟现实的水库条件来优化EOR策略的前景.
科学领域:
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 微流体平台对于孔尺度增强石油回收 (EOR) 研究至关重要.
- 在微流体设备中复制现实的水库表面化学仍然是一个重大挑战.
- 现有的平台往往缺乏准确模拟碳酸盐储油湿性能的能力.
研究的目的:
- 开发一个微流体平台,模拟碳酸盐岩石的结构和油湿表面特征.
- 为了评估一种新的基于混凝土的碳化海水洪水流体的EOR性能.
- 调查孔尺度异质性对石油回收的影响.
主要方法:
- 使用聚甲基 (PDMS) 与碳酸 (CaCO3) 粉末混合制造微流体平台.
- 使用接触角测量测试来确定油湿行为.
- 光显微镜用于评估复合材料表面上的油.
- 在同质和随机结构的多孔网络中进行洪水试验,使用专门的碳酸海水溶液.
主要成果:
- 基于CaCO3的PDMS表面表现出强烈的油湿行为 (接触角度~130-139°).
- 微流体平台展示了复合材料表面内的油容量.
- 碳酸海水洪水液在随机网络中实现了高达39.98%的原始现场油 (OOIP) 恢复.
- 石油回收率从20%的OOIP (同质网络,含碳海水) 到39.98%的OOIP (随机网络,含碳海水) 不同.
结论:
- 开发的微流体平台有效地模仿碳酸盐岩石的结构和油湿表面特性.
- 工程表面化学和化学活性液体在促进油位移方面表现出协同效应.
- 这些发现支持使用量身定制的微流体模型和化学洪水来优化碳酸盐储中的EOR.
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