一种可控制和可扩展的贵重气体注射方法,用于水文地质研究中的定量追踪测试
Morgan Peel1, Kai Solanki2, Philip Brunner2
1Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
Water research
|February 13, 2026
概括
像和这样的高贵气体是有效的人工地质水文标记物. 一种新方法简化了地下水流量研究的注入和分析.
科学领域:
- 环境科学 环境科学
- 地质地质地质地质地质地
- 水文学的水文学
背景情况:
- 由于它们的惰性,溶解的贵重气体是理想的人工地质水文标记物.
- 由于注射,采样和分析方面的挑战,采用率有限.
- 测量技术的近期进步重新引起了对气体跟踪器的兴趣,用于水文地质学.
研究的目的:
- 提出一种简单有效的方法来制备和注射有控制的溶解气体度的缩标记剂溶液.
- 为了应对在标记剂注射过程中脱溶和脱气的挑战.
- 在大规模的水文地质调查中证明贵重气体跟踪器的实用性.
主要方法:
- 开发并应用了一种新的方法,用于在现场准备和注入贵重气体标记剂.
- 在未受限制的含水层中使用-4 (4He),-20 (20Ne) 和-84 (84Kr) 进行了井到井的追踪测试.
- 使用便携式质谱仪监测标记器突破,并将结果与光染料标记器进行比较.
主要成果:
- 新的方法使得高度的标记剂溶液能够高效地注入,并控制气体度.
- 4He和84Kr的突破曲线与光染料跟踪剂相比较有利.
- 实现了对地下水流速,运行时间和追踪器回收的可靠估计.
结论:
- 高贵气体标记物,特别是4He和84Kr,可以有效地替代或补充水文地质研究中的传统人工标记物.
- 开发的方法克服了以前的局限性,使气体追踪器的应用在常规调查中变得更加可行.
- 该方法可以扩展到其他气体,扩大水文地质研究可用的人工标记物的范围.
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