...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Contaminant Hydrology >The influence of field-scale heterogeneity on the infiltration and entrapment of dense nonaqueous phase liquids in saturated formations
【24h】

The influence of field-scale heterogeneity on the infiltration and entrapment of dense nonaqueous phase liquids in saturated formations

机译：场尺度非均质性对稠密非水相液体在饱和地层中的渗透和截留的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Numerical simulations are used for the systematic exploration of the migration and entrapment of dense nonaqueous phase liquids (DNAPLs) in heterogeneous formations. Ensembles of realizations of random, spatially correlated permeability fields are generated and employed in model simulations of a spill event. Statistical techniques are then used to quantify the sensitivity of model predictions to input parameters, thereby identifying the parameters or processes that may be of primary importance in the determination of organic liquid distributions in heterogeneous systems. Results of the study indicate that the most critical factors in modeling organic entrapment include the spill release rate, reliable estimates of the mean, variance, and vertical correlation scale of the formation permeability, and an accurate representation of the correlation between the capillary pressure-saturation function and the permeability. In contrast, the hydraulic gradient and cross-correlation of residual saturations with permeabilities are found to have only minor influence on organic liquid distributions in such heterogeneous formations.
机译：数值模拟用于系统研究稠密非水相液体（DNAPLs）在非均质地层中的迁移和包裹。生成随机的，空间相关的渗透率场的实现集合，并将其用于溢出事件的模型仿真中。然后，使用统计技术来量化模型预测对输入参数的敏感性，从而确定在确定异构系统中有机液体分布方面可能最重要的参数或过程。研究结果表明，模拟有机物夹带的最关键因素包括溢流释放率，地层渗透率平均值，方差和垂直相关尺度的可靠估计，以及毛细管压力-饱和度之间相关性的准确表示。功能和渗透性。相反，发现水力梯度和残余饱和度与渗透率的互相关对这种非均质地层中的有机液体分布只有很小的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号