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Modeling of groundwater flow system in Wadi Al-Miyah area, eastern Saudi Arabia.

机译：沙特阿拉伯东部Wadi Al-Miyah地区的地下水流系统建模。

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摘要

A detailed geological map of scale 1:150,000 of Wadi Al-Miyah area was constructed on the basis of LANDSAT-TM images. An electrical resistivity model was constructed to determine the thickness of the various hydrogeologic units. Correlation of the resistivity model with the stratigraphic units displayed a probable boundary of a collapsing structure in the Rus formation. Vertical leakage zones were identified based on estimated leakage rates among different aquifers. The high vertical leakage at certain locations confirmed the interconnection and the lithologic control on the groundwater flow and solute distribution. An areal finite element model for fluid-density-dependent groundwater flow and solute transport was used to simulate the existing and future groundwater and solute distribution patterns in the Neogene, Alat and Khobar aquifers. The constructed model was calibrated in steady state and transient conditions. The calibrated model was used to predict the future trends of groundwater flow and chloride concentration for the period of 1994-2010 (16 years). Results have shown that chloride concentration along the Gulf coast was very high in the aquifers. Water quality in the eastern part of the study areas was found to be good and at some places the concentration was less than 500 ppm in khobar aquifer. Khobar and Alat aquifers were affected by the high rate of pumping. If the present increasing trend is continued, the water level would decline significantly. If the present condition of pumping is kept constant, a littler change would take place during the next 16 years period.
机译：根据LANDSAT-TM影像，绘制了Wadi Al-Miyah地区1：150,000比例尺的详细地质图。构建了电阻率模型，以确定各种水文地质单元的厚度。电阻率模型与地层单位的相关性显示了Rus地层中坍塌结构的可能边界。根据不同含水层之间的估计泄漏率确定垂直泄漏区。在某些位置的高垂直泄漏证实了对地下水流动和溶质分布的相互联系和岩性控制。流体密度依赖的地下水流动和溶质运移的面有限元模型被用来模拟新近纪，阿拉特和科巴含水层中现有和未来的地下水和溶质分布模式。在稳态和瞬态条件下对构建的模型进行校准。校正后的模型用于预测1994年至2010年（16年）期间地下水流量和氯化物浓度的未来趋势。结果表明，墨西哥湾沿岸的氯化物浓度在含水层中非常高。研究区东部的水质良好，在某些地方，红叶含水层的水浓度低于500 ppm。高地抽水率影响了胡拜尔和阿拉特含水层。如果继续目前的增长趋势，水位将大大下降。如果目前的抽水条件保持不变，那么在接下来的16年中将发生一点变化。

著录项

  • 作者

    Hasan, Ayaz.;

  • 作者单位

    King Fahd University of Petroleum and Minerals (Saudi Arabia).;

  • 授予单位 King Fahd University of Petroleum and Minerals (Saudi Arabia).;
  • 学科 Geology.;Engineering Mechanical.;Hydrology.
  • 学位 M.S.
  • 年度 1995
  • 页码 248 p.
  • 总页数 248
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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