关于3D打印树脂芯中的电分散的实验研究揭示了孔隙和流体性质机制
Hongwei Shi1, Shizhen Ke2, Yuhang Zhang1
1College of Geophysics, China University of Petroleum, Beijing, China.
Scientific reports
|December 30, 2025
概括
这项研究使用3D打印来创建岩石样本,揭示孔隙结构如何影响电气性能. 这有助于推进电气岩石物理学,以便更好地评估水库和进行地质勘探.
科学领域:
- 地球科学 地球科学 地球科学
- 电气岩石物理 岩石物理
背景情况:
- 不同质的天然岩石在分析孔隙结构时存在挑战.
- 了解岩石物理参数和电散之间的关系对于井日志解释至关重要.
研究的目的:
- 通过3D打印来研究定义的孔隙结构对电阻分散的影响.
- 量化分析毛孔度,和度,盐度和毛孔-喉结构对复杂电阻的影响.
主要方法:
- 使用光固化3D打印 (分辨率49.8μm) 制造具有受控孔隙结构的核心样本.
- 在3D打印和天然岩石样本 (砂岩,煤) 之间对复杂电阻分散的比较分析.
- 复杂电阻的实验测量在一个广泛的频率范围 (40 Hz 到 110 MHz).
主要成果:
- 3D打印的核心显示了类似的分散趋势,但由于孔隙结构的差异,与自然样本相比,电阻和极化频率有所不同.
- 电阻率和极化频率显示与孔隙性的单调关系.
- 在电阻/极化频率和和度,盐度和孔结构之间观察到电力定律关系.
结论:
- 孔隙结构显著影响复杂电阻分散,突出其至关重要的重要性.
- 3D打印为岩石物理研究提供了一种新且可行的实验室方法.
- 定量分析为地质勘探和能源开发提供了洞察力.
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