在气-水-压力函数下,对煤层中的气体透特性进行实验性调查
Zunguo Zhang1,2, Chao Tang3,4, Yi Chen1,5
1College of Safety Science and Engineering, Liaoning Technical University, Huludao, 125105, Liaoning, China.
Scientific reports
|January 12, 2025
概括
煤层中的气体透是复杂的,受到气体压力,湿度和压力的影响. 基于这些因素的透性变化,特别是低湿度水平,影响气体回收优化.
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.
- 材料科学 材料科学 材料科学
背景情况:
- 煤层对于能源资源至关重要,但它们的气体泄漏行为很复杂.
- 了解气体-水-压力相互作用对于高效的煤床甲提取至关重要.
研究的目的:
- 研究气体压力,水分含量和有效应力对煤炭透性的影响.
- 开发一个关于煤层气体泄漏的综合模型.
主要方法:
- 在煤炭样本上进行了实验性漏测试.
- 应用了各种水分含量,气体压力和有效应力等级.
- 在不同的条件下测量了透性.
主要成果:
- 煤炭的透性受到气体压力,湿度和有效应力相互作用的显著影响.
- 在低湿度下,透性呈现出"增加-减少-增加"的模式,气体压力上升.
- 含水量对透性的影响是由二次函数或指数函数建模的;有效应力由二次函数或对数函数建模.
结论:
- 开发了煤层透性的预测模型,将气压,湿度和有效应力整合起来.
- 这些发现为优化煤层中气体回收策略提供了基础.
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