相关实验视频
Updated: Jan 27, 2026

08:18
Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
648
微CT三维数字建模和煤炭在液裂解下漏模拟
Yonggang Qiao1, Liang Wang1, Muyang Gan2
1College of Safety Engineering, China University of Mining and Technology, Xuzhou 221008, P. R. China.
ACS omega
|January 26, 2026
概括
低温液裂解显著提高了煤炭孔的连接性和透性. 这种改进的孔隙结构促进了流体运输,这对于优化煤床甲开采和非传统气体开发至关重要.
科学领域:
- 地质地质地质地质地质地
- 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
背景情况:
- 煤的孔裂结构决定了其微观结构的演变和流体运输特性.
- 了解漏特性对于煤床甲 (CBM) 提取效率至关重要.
- 低级别的煤由于其复杂的孔状网络而带来了独特的挑战.
研究的目的:
- 在冷液裂解前后对煤的3D孔隙和断裂结构进行定量分析.
- 评估断裂对孔隙,扭曲性,连接性和孔隙和断裂的空间分布的影响.
- 建立孔隙结构参数和透性之间的关系,以改善CBM提取.
主要方法:
- 计算机断层扫描 (CT) 扫描用于孔裂网络的3D成像.
- 注射孔径测量 (MIP) 用于孔径大小分布分析.
- 孔网建模 (PNM) 模拟流体流动并计算绝对透率.
主要成果:
- 破裂使孔隙性从6.32%增加到10.39%,孔隙连接性从0.42增加到0.75.
- 破碎煤具有较低的扭曲度,连接性孔隙面积和体积增加,孔隙结构更复杂.
- 破碎煤中的孔喉参数和协调数遵循了日志常态分布,协调数增加了1.81.
- 透性显示出异构性和与连接性,协调数,扭曲性和碎形维度有很强的相关性,协调数是最有影响力的.
结论:
- 低温液裂解显著改善了煤炭的孔隙结构,增强了连接性和流体运输.
- 该研究为优化煤层中压裂技术提供了定量基础.
- 这些发现对于推进煤床甲开采和非传统天然气开发至关重要.
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