2D and 3D resistivity inversion of Schlumberger vertical electrical soundings in Wadi El Natrun, Egypt: A case study

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• 作者：Mohamed A. Khalil^a ; ^b ; ^{khalil250@hotmail.com} ; Fernando A. Monteiro Santos^a
• 关键词：2D ; 3D ; Resistivity inversion ; Hydrogeology ; VES
• 刊名：Journal of Applied Geophysics
• 出版年：2013
• 出版时间：February, 2013
• 年：2013
• 卷：89
• 期：Complete
• 页码：116-124
• 全文大小：2530 K

文摘

The Wadi El Natrun area is characterized by a very complicated geological and hydrogeological system. 45 vertical electrical soundings (Schlumberger array) were measured in the study area to elucidate the peculiarity of this unique regime, specifically the nature of waterless area. 2D and 3D resistivity inversion based on the finite element technique and regularization method were applied on the data set. 2D and 3D model resolution was investigated through the use of the Depth and Volume of Investigation Indexes. A very good matching was found between the zones of high resistivity, the waterless area, and the non-productive wells. The low resistivity zones (corresponding to Lower Pliocene clay) were also identified. The middle resistivity fresh water aquifer zones were recognized. Available results can assist in the aquifer management by selecting the most productive zone of groundwater.