煤床CO2流中的透性-粘度的双重控制:碳安全监督评估,以优化封存
Dahan Yang1, Xinlei Xu1, Zhengdong Liu2
1School of Public Management, Liaoning University, Shenyang 110136, China.
ACS omega
|October 6, 2025
概括
这项研究揭示了二氧化碳 (CO2) 粘度和煤层透性如何动态控制二氧化碳储存. 了解这些双重机制可以优化注入策略,提高碳捕获和储存效率.
科学领域:
- 地质工程是地质工程.
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 煤层中二氧化碳 (CO2) 的地质封存对于减少排放至关重要.
- 煤炭的低透性和不断变化的二氧化碳粘度阻碍了二氧化碳的流动和储存效率.
- 二氧化碳特性与煤层特性之间的动态相互作用需要进一步研究.
研究的目的:
- 分析控制煤层二氧化碳迁移的动态双重控制机制.
- 开发一个数学模型并进行二氧化碳封存的数值模拟.
- 量化评估透性和粘度对二氧化碳流量的影响重量.
主要方法:
- 开发一个数学模型,将暂时的二氧化碳粘度和煤层透性纳入其中.
- 在煤层中对二氧化碳封存的数值模拟.
- 应用对数和有限差异分解方法来进行参数解.
- 在透性和粘度之间对动态合特性进行定量评估.
主要成果:
- 二氧化碳的迁移依赖于阶段:透性首先占主导地位,其次是粘度的影响,最终是动态平衡.
- 该研究阐明了煤层透性和二氧化碳粘度之间的动态合特性.
- 在二氧化碳流域上,不断变化的参数的主导影响权重被量化评估.
结论:
- 建议采用动态双控制权重方法来优化二氧化碳注入策略.
- 通过优化策略可以实现提高二氧化碳的流动性和储存效率.
- 这些发现为准确评估煤层中二氧化碳封存的性能提供了理论基础.
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