水表储存和恢复盐水层中的水平井的潜力
Simon Kreipl1, Mark Bakker1, Boris M van Breukelen1
1Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands.
Ground water
|February 27, 2026
概括
在盐水层中,水平井对水表储存和回收 (ASR) 有希望,在效率和回收方面明显优于垂直井,特别是在具有挑战性的浮力条件下.
科学领域:
- 水文地质学 水文地质学
- 水资源管理 水资源管理
- 环境工程 环境工程
背景情况:
- 水库存储和回收 (ASR) 涉及注入和提取水,使用水井进行管理的水库补充.
- 盐水层中的性能受到分散混合和浮力驱动的流动的阻碍,降低了淡水回收效率.
- 由于这些局限性,传统的垂直井往往在低传导性盐水层中扎.
研究的目的:
- 调查水平井的潜力,以提高盐水,低传导性含水层的ASR性能.
- 为了比较水平井与传统垂直井的效率和回收率.
- 在具有挑战性的水文地质条件下确定ASR的最佳配置.
主要方法:
- 使用MODFLOW 6进行数值模拟,模拟三个井配置:水平,完全穿透的垂直和双井系统.
- 通过使用拉丁式超立方体采样,对广泛的参数组合进行广泛的测试.
- 专注于垂直井表现不佳的条件.
主要成果:
- 与垂直井相比 (6-16%),水平井的平均回收效率在五个周期中显著提高 (45%),而垂直井的平均回收效率则明显提高.
- 在强大的浮力条件下,水平井显示出明显的优势,而垂直井没有回收淡水.
- 分散混合对水平井产生了负面影响 (早期的盐水突破),但在垂直井中稳定了淡水.
结论:
- 水平井是改善盐水,低传导性含水层的ASR性能的一个有希望的替代方案.
- 它们提供卓越的回收效率,特别是当浮力驱动的流量显著限制垂直井的有效性时.
- 对于需要多个垂直井或面临浮力挑战的ASR应用,建议使用水平井.
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