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通过温度改变改善中低成熟度大陆页岩中微孔结构的实验研究

Linyan Li¹, Xin Tang^2,3, Xiaoyi Zhou¹

¹School of Civil Engineering, Chongqing Three Gorges University, Chongqing, 404100, China.

Scientific reports

|March 5, 2025

概括

在250-300°C之间加热中低成熟页岩优化孔隙结构,增强油气储的透性和流动性. 这种方法改善了页岩油的回收,同时降低了成本和环境影响.

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:

孔隙结构对于石油和天然气储库的储存和迁移至关重要.
现场高温改造是提高页岩油气回收效率的关键技术.

研究的目的:

在不同温度下研究微孔扩张和中低成熟度页岩的变化.
确定最佳的储修改温度,以增强页岩油回收.

主要方法:

使用扫描电子显微镜 (SEM) 进行定性和定量分析.
进行了气体吸附-脱附实验,以评估孔隙结构的变化.
检查了来自重庆市梁平区海市的页岩样本.

主要成果:

确定了250300°C的最佳温度范围,以显著改善页岩孔表面积和体积.
高温 (250300°C) 导致毛孔形态不规则,毛孔开放增加,裂形成.
观察到,页岩油在储空间内的孔隙连接性和流动性得到了增强.

结论:

在250~300°C范围内直接加热页岩水库,有效地提高了石油流动性和水库连接性.
这种热修饰提高了水库的透性,降低了开采成本,并将环境污染降到最低.
为大规模的现场页岩油开采提供了基本指导.

关键词:

气体吸附 - 脱附实验.高温热处理高温热处理中低到期的页岩.毛孔修饰是毛孔的修饰.扫描电子显微镜扫描电子显微镜

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