Applications of well logging techniques to evaluate the groundwater aquifers in the area between southwest Bani Sweif and west Asyoute governorate, upper Egypt

Kuwait Journal of Science

article

Safi Metwally¹  shimaa Elska¹  Fardous Zarif¹  Abdallah Saad² 

[1] Department of geophysical exploration, Desert Research Center;Physics Department, Faculty of Science, Zagazig University

关键词: Bahariya formation;    gamma;    groundwater;    neutron;    Egypt;   

DOI  :  10.48129/kjs.17333

学科分类：社会科学、人文和艺术（综合）

来源: Kuwait University * Academic Publication Council

【 摘 要 】

The relevance of detecting aquifer characterization and aquifer potential has risen with theapplication of well logging technique as the demand for water has increased. Apart from pumpingdata, 16 geophysical well logs (resistivity, gamma ray, self-potential, and nuclear logs) are utilizedto achieve the main goal of estimating petrophysical parameters (porosity (∅), effective porosity(∅!""), hydraulic conductivity (k), permeability (K) and shale volume (�#$)) of the Apollonia(Eocene fractured limestone aquifer), Upper and Lower Bahariya (Nubian sandstone aquifer)formations. The findings show that the Eocene fractured limestone aquifer has a carbonate in softchalk with high K and ∅ as well as high k of 4974.39 mD at well ST-188 (a highly productiveaquifer), whereas the Lower Bahariya formation is mostly fine to medium-grained sandstone andclay, suggesting that it formed in shallow marine environments with low K. On the other hand,Upper Bahariya was noted that having poor sand succession. As results shown, K of the mostexamined wells range from 2609.69 to 1486.812 mD at ST-258 and ST-38 wells respectively. Thestudy appears that �#$, such as ∅ and K parameters, is regarded as an important attribute in aquiferevaluation where, estimated �#$ over the studied area is ranges between 5.96% and 31.7% at ST48 and WBS1 wells respectively. Overall, this study provides an important insight into theimportance of evaluating groundwater aquifers over time to help in making decisions to save andprotect groundwater aquifers in the future for sustainable development.

【 授权许可】

Unknown