Simulation of Aquifer Architecture and Analysis of Media Heterogeneity

含水层的结构是水文地质学中的关键问题 因为它在很大程度上控制了地下流体的输送。 虽然地质统计学模型可以描述含水层的某些方面， 不均匀性，有关于地质过程的信息， 环境，尚未考虑使用的模型， 空间相关性和连通性。 利用沉积过程 模拟、岩石物理学、地质统计学和地下水建模， 该提案旨在从地质角度研究含水层， 架构 这种模拟方法明确考虑了 控制含水层演变的地质过程， 它们所导致的异质性模式。 拟议的工作将 着重于冲积环境并研究其中的局部相。 大型沉积过程模拟提供了完整的三个- 三维图像 冲积层建筑对 地下水输运将使用三维 地下水流和颗粒跟踪。 运输通过 使用地质统计模型得出的模拟含水层将 并与地质过程模拟结果进行了比较。 它 这项工作的最终目的是制定一个统一的方法， 结合大尺度信息描述含水层结构 从地质过程模拟发展到地质统计学 局部尺度变化的描述。

The architecture of aquifers is of key concern in hydrogeology because it largely controls the transport of subsurface fluids. Although geostatistical models can describe some aspects of aquifer heterogeneity, there is information about geologic processes and environments that has not been accounted for using models of spatial correlation and connectedness. Using sedimentary process simulation, petrophysics, geostatistics, and groundwater modelling, this proposal aims to develop a geologic perspective on aquifer architecture. This simulation approach explicitly considers the geologic processes which control the evolution of aquifers and their resulting patterns of heterogeneity. The proposed work will focus on alluvial environments and study local facies within them. Large-scale sedimentary process modelling provides complete three- dimensional images. The effect of the alluvial architecture on groundwater transport will be analyzed using three-dimensional groundwater flow and particle tracking. Transport through simulated aquifers derived using geostatistical models will be compared with those derived using geologic process simulation. It is the ultimate aim of this work to develop a unified approach to describe aquifer architecture by combining large-scale information developed from geologic process simulation with geostatistical descriptions of local-scale variability.