微碎裂对煤炭气流行为的影响,以增强煤床甲回收和CO2存储
Rahul Kumar Singh1, Nirlipta Priyadarshini Nayak1, Sanjeev Kumar2
1Energy Cluster, University of Petroleum and Energy Studies, Dehradun-248007 (Uttarakhand), India.
Heliyon
|February 22, 2024
概括
本研究评估了基于二氧化碳的增强煤床甲回收 (ECBMR) 的气流模型,发现BDM和FFDM适用于异质煤层,TDDM适用于时间动态,改进回收策略.
科学领域:
- 地质科学 地质科学
- 石油工程是石油工程中的一个.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 煤炭形成表现出复杂的气体流动动力学,受微小破裂的影响.
- 使用二氧化碳的增强煤床甲回收 (ECBMR) 是增加甲产量的关键策略.
- 了解破裂煤层中的气体迁移对于优化回收至关重要.
研究的目的:
- 评估各种气体流量模型在模拟基于二氧化碳的ECBMR中的有效性.
- 为了确定不同模型的适用性,考虑到煤层异质性和微碎裂.
- 为选择适当的模型提供洞察力,以增强气体回收.
主要方法:
- 对六种气体流量模型进行比较分析:UDM,BDM,FFDM,TDDM,ASM和FGDGM.
- 评估模型的性能,以捕捉破碎煤中气流的复杂性.
- 对异质煤层和时间依赖动态的模型准确性的评估.
主要成果:
- 根据其适用于基于二氧化碳的ECBMR的适用性,对气体流模型进行分类.
- 建议使用BDM和FFDM模型来模拟异质煤层中的气体流.
- TDDM模型在捕捉ECBMR的时间动态方面表现出更高的准确性.
结论:
- 选择合适的气流模型对于准确模拟基于二氧化碳的ECBMR至关重要.
- BDM,FFDM和TDDM模型为了解和优化破裂煤层中的气体迁移提供了有价值的工具.
- 这项研究有助于改进从煤床回收甲的战略.
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