Determination of Aquifer Hydraulic Characteristics from Surface Electrical and Borehole Measurements in Ozoro, Nigeria

Authors

  • M. O. Ofomola Delta State University
  • O. P. Otheremu
  • O. Ohwogere-Asuma
  • O. Anomohanran

Keywords:

Hazen approximation, Hydraulic conductivity, Pumping test, Benin formation, Resistivity logging

Abstract

Surface electrical and borehole measurements were undertaken in order to establish the hydraulic characteristics of alluvial aquifer in Ozoro, Delta State. Ten vertical electrical sounding data were acquired using Schlumberger Configuration. Borehole measurements which included pumping test, well logging and the distribution of grain size analysis were also carried out. The results of the electrical sounding indicate that the aquiferous layer is located between the fourth and fifth layers with resistivity ranged from 53.5 Ωm - 1279 Ωm. The aquifer thickness ranged from 7.67 m - 49.4 m and transmissivity values ranged from 41.4 - 330.5 /day. The average hydraulic conductivity (k) value obtained is 6.2 m/day. The borehole lithology, resistivity and spontaneous potential log indicate the subsurface lithology to consists of top soil (brownish), clayey sand, clay, fine sand and gravelly sand. The Cooper Jacob solution was used in the analysis of the borehole pumping experiment and the obtained hydraulic conductivity, transmissivity, storativity and specific capacity are 6.8 m/day, 0.067 m2/min (96.48 /day), 25.47 and 0.364 m2/min (524.6 m2/day) respectively. Also, the grain size distribution analysis using the Hazen approximation gave hydraulic conductivity as 11.55 m/day. The results showed that all three methods are applicable for determining aquifer hydraulic parameters.

References

Aduojo, A.A.; A.E. Adebowole and O. Uchegbulam. (2020). Modeling groundwater total dissolved solid from derived electromagnetic data using multiple linear regression analysis: a case study of groundwater contamination. Modeling Earth System and. Environ. 6, 1863–1875 (2020). https://doi.org/10.1007/s40808-020-00796-9

Akpoborie, A.I. and Efobo, O. (2014). Groundwater conditions and hydrgeochemistry of the Benin Formation aquifer in the vicinity of Abraka, Nigeria. International Journal of water Resources and Environmental Engineering,6(1):19-31.

Anomohanran, O. and Orhiunu, M.E. (2018) Assessment of groundwater occurrence in Olomoro, Nigeria using borehole logging and electrical resistivity methods. Arab J Geosci 11, 219. https://doi.org/10.1007/s12517-018-3582-7

Atakpo, E. A. (2009). Groundwater and contaminant flow modeling in Olomoro area of Delta State. Journal of the Nigerian Association of Mathematical Physics, (15): 205-212.

Cooper, H.H. and Jacob, C.E. (1946). A generalized graphical method for evaluating formation constants and summarizing well field history. American Geophysical Union, Transactions, 27:. 526-534

George, N.J.; A.E. Akpan and F.S Akpan. (2017). Assessment of spatial distribution of porosity and aquifer geohydraulic parameters in parts of the Tertiary – Quaternary hydrogeoresource of south-eastern Nigeria. NRIAG Journal of Astronomy and Geophysics. 6(2), 422-433 https://doi.org/10.1016/j.nrjag.2017.09.001

Hazen, A. (1892). Some physical properties of sand and gravels, with special reference to their use in filtration, 24th Annual Report, Massachusetts State Board of Health, pub.Doc 34: 539-556

Ige, O. O.; D.O. Obasaju; C. Baiyegunhi; O. Ogunsanwo and T.L. Baiyegunhi. (2018). Evaluation of aquifer hydraulic characteristics using geoelectrical sounding, pumping and laboratory tests: A case study of Lokoja and Patti Formations, Southern Bida Basin, Nigeria" Open Geosciences, vol. 10, no. 1, pp. 807-820. https://doi.org/10.1515/geo-2018-0063

Iserhien-Emekeme, R.; M.O. Ofomola; M. Bawalla and O. Anomohanran. (2017). Lithological Identification and Underground Water Conditions in Jeddo Using Geophysical and Geochemical Methods. Hydrology, 4, 42; 1-15. https://doi.org/10.3390/hydrology4030042

Jimoh, R.A.; O.M. Bankole; K. Ahmed; et al. (2018). Use of geophysical logs in hydrogeological studies and borehole designs: case study of Apapa coastal area, Lagos, Nigeria. Applied Water Science 8, 191. https://doi.org/10.1007/s13201-018-0804-9.

Juandi, M and Syahril, S. (2017). Empirical relationship between soil permeability and resistivity, and its application for determining the groundwater gross recharge in Marpoyan Damai, Pekanbaru, Indonesia. Water Practice and Technology 12 660-666

Khadri, S.F.R., and Pande, C. (2016). Ground water flow modeling for calibrating steady state using MODFLOW software: a case study of Mahesh River basin, India. Model. Earth Syst. Environ. 2, 39. https://doi.org/10.1007/s40808-015-0049-7

Oborie, E. and Nwankwoala, H.O. (2017). Determination of Groundwater Flow Direction in Yenagoa, Bayelsa State, Nigeria. Journal of Scientific Achievements, 2(9): 23 – 27.

Ofomola, M.O (2014). Aquifer Characterization and groundwater quality studies in part of Niger Delta Area using geoelectric and hydrogeochemical methods. Nigeria Journal of Physics, 25:96–106.

Kango, R.; V. Shankar and M. A. Alam (2019). Evaluation of hydraulic conductivity based on grain size distribution parameters using power function model. Water Supply 19 (2): 596–602. https://doi.org/10.2166/ws.2018.106

Lachassagne, P. (2020). What is Groundwater? How to manage Groundwater Resources. Annals of Nutrition and Metabolism, 76(suppl 1):17–24. https://DOI: 10.1159/000515024

Schwartz, F.W. and Zhang, H. (2003). Fundamentals of Groundwater. John Wiley & Sons, New York. ISBN: 978-0-471-13785-6

Short, K.C. and Stauble, A.J. (1967). Outline of Geology of Niger Delta: American Association of Petroleum Geologist Bull., (51):761 – 779.

Uma, K.O.; B.C.E. Egboke and K.M. Onuoha. (1989). New statistical Grain-Size method for evaluating the hydraulic conductivity of sandy aquifers. Journal of Hydrology 108:367-386.

Valigi, D.; C. Cambi; R. Checcucci and L. Di Matteo. (2021). Transmissivity Estimates by Specific Capacity Data of Some Fractured Italian Carbonate Aquifers. Water, 13, 1374. https://doi.org/10.3390/w13101374

Zohdy, A. A. R. and Jackson, D. B. (1973). Recognition of natural brine by electrical soundings near the Salt Fork of the Brazos River, Kent and Stonewall Counties, Texas: U.S. Geological Survey Professional Paper 809-A, 14 .

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Published

2022-09-11

Issue

Vol. 19 No. 3 (2022)

Section

Articles

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