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<p>Aquifer transmissibility indices influence interactions between the rock matrix and pore water and, consequently, fluid flow within aquifer systems. This study quantified multiple transmissibility indices within a complex, saline-vulnerable aquifer system to improve the accuracy of fluid-flow modeling. Geo-electrostratigraphic data obtained from vertical electrical soundings (VES) were integrated to derive aquifer transmissibility indices, including bulk aquifer resistivity, formation factor, porosity, intrinsic permeability, hydraulic conductivity, transmissivity, tortuosity, surface capillary radius, surface area per unit pore volume, and specific surface area. Permeability ranged from 4303.4 mD to 48049.7 mD, and hydraulic conductivity varied from 2.6 to 28.7&#xa0;m/day, indicating good transmissibility. Large values of porosity, permeability, hydraulic conductivity, surface capillary radius, and specific surface area indicated good transmissibility, while high surface area per pore volume indicated reduced transmissibility. Groundwater yield potential ranged from 1075.6 to 20664.3, indicating a prolific aquifer, and longitudinal conductance values indicated that 50% of the investigation area had poor aquifer protectivity. This work has delineated the roles of diverse hydrokinetic transmissibility indices in aquifer fluid-flow dynamics. It has evaluated the interrelationships between these indices, generating valuable empirical relationships and formulations that are generalizable to other heterogeneous coastal milieus worldwide.</p>

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Integrated hydrokinetic characterization of a saline-vulnerable coastal aquifer system using multivariate transmissibility indices and geo-electrostratigraphic derivations

  • 期刊论文

  • 发表日期：

    2026年4月29日

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  • Ndifreke I. Udosen

摘要

Aquifer transmissibility indices influence interactions between the rock matrix and pore water and, consequently, fluid flow within aquifer systems. This study quantified multiple transmissibility indices within a complex, saline-vulnerable aquifer system to improve the accuracy of fluid-flow modeling. Geo-electrostratigraphic data obtained from vertical electrical soundings (VES) were integrated to derive aquifer transmissibility indices, including bulk aquifer resistivity, formation factor, porosity, intrinsic permeability, hydraulic conductivity, transmissivity, tortuosity, surface capillary radius, surface area per unit pore volume, and specific surface area. Permeability ranged from 4303.4 mD to 48049.7 mD, and hydraulic conductivity varied from 2.6 to 28.7 m/day, indicating good transmissibility. Large values of porosity, permeability, hydraulic conductivity, surface capillary radius, and specific surface area indicated good transmissibility, while high surface area per pore volume indicated reduced transmissibility. Groundwater yield potential ranged from 1075.6 to 20664.3, indicating a prolific aquifer, and longitudinal conductance values indicated that 50% of the investigation area had poor aquifer protectivity. This work has delineated the roles of diverse hydrokinetic transmissibility indices in aquifer fluid-flow dynamics. It has evaluated the interrelationships between these indices, generating valuable empirical relationships and formulations that are generalizable to other heterogeneous coastal milieus worldwide.