scholarly journals Application of Vertical Electrical Sounding (VES) Resistivity Method to determine a well recommendation point at deep-groundwater exploitation

2021 ◽  
Vol 1 (2) ◽  
pp. 8-13
Author(s):  
Taufiq Taufiq ◽  
Maharani Maharani ◽  
H D Mega
Keyword(s):  
Water Layer ◽  
Potential Difference ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Daily Consumption ◽  
Measuring Point ◽  
Groundwater Exploitation ◽  
Resistivity Method ◽  
Electrical Sounding ◽  
Almost All

The demand of fresh water to develop of life community is very important, where almost all construction activities is required a water such as irrigating rice fields, building infrastructure, and to daily consumption. To obtain a good quality of groundwater, several parameter must be specified such as the depth of groundwater, thickness of the source, and resistivity value of rock. In this case, we try to applied Vertical Electrical Sounding (VES) resistivity method with Schlumberger configuration on one of Pamsimas Project to answer that parameter. VES Resistivity method is one of the active methods in geophysical study based on electrical properties of the subsurface rock by injecting electric current (I) into the earth and record the potential difference (?V) produced to the surface. From the results of current and potential difference measurements for each electrode spacing (AB/2) different then be lowered resistivity variations in the value of each layer below the measuring point (sounding points). After the acquisition on 3 points at Pandansari Village (PS-01, PS-02, PS-03), we get the result on PS-01, the water layer is indicated on the depth 60-80 meters with resistivity values equal than 36.7-50 ?m. On PS-02, the water layer is indicated on the depth 50-100 meters with resistivity values equal than 18.7-40 ?m. On PS-03, the water layer is indicated on the depth 30-60 meters with resistivity values equal than 52.8-70 ?m. Afterthat, we run 2D-pseudosection to know the distribution of groundwater layer in subsurface and get the thickness of groundwater is 20-50 meter with depth 40-80 meter. Based on this result, the PS-01 is the best point to make a well-exploitation on South Pandansari Pamsimas Project.

scholarly journals AQUIFER TRANSMISSIVITY VALUES FROM VES FOR PARTS OF PORT HARCOURT, RIVERS STATE, NIGERIA

2018 ◽  
Vol 6 (4) ◽  
pp. 291-300
Author(s):  
Eke P.O ◽  
Life George F
Keyword(s):  
Local Government ◽  
Ground Water ◽  
Electrode Configuration ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Groundwater Exploitation ◽  
Average Value ◽  
Port Harcourt ◽  
Electrical Sounding ◽  
Rivers State

This paper presents aquifer transmissivity values obtained from vertical electrical sounding method from some locations in Port Harcourt Local Government Area of Rivers State. Twelve (12) stations were occupied using the Schlumberger electrode configuration with maximum electrode spacing of 400 m. The data were interpreted using IPI2WIN software version 3.0.1 (2003).The results reveal four layer strata with transmissivity (Tr) values of between 145.53 and 18264.42 m2/day with average value of 7252.23 m2/day. These indicate high aquifer transmissivity values for the study area with high permeable and significant storability of the formations that enhances the migration and circulation of ground water within the region. The results indicate that the southern part of the study area is the most prolific in terms of groundwater exploitation and thus the most promising in sitting productive boreholes.

Geophysical Survey as a Surface Tool in Groundwater Exploration in Delta North District, Nigeria

2011 ◽  
Vol 367 ◽  
pp. 795-800
Author(s):  
F.O. Ezomo ◽  
C.N. Akujieze
Keyword(s):  
Research Work ◽  
Electrode Array ◽  
Water Shortage ◽  
Groundwater Exploration ◽  
Geophysical Survey ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Current Electrode ◽  
Resistivity Method ◽  
Electrical Sounding

Geophysical survey based on electrical resistivity method employing the techniques of vertical electrical sounding (VES) was carried out in order to investigate Groundwater existence in Delta North District, of Nigeria. This research work became necessary in order to solve the problem of acute water shortage in the area by way of prospecting or searching for additional aquifers which would subsidize the existing one, domestically, industrially and agriculturally. Ten (10) vertical electrical sounding (VES) (uniformly distributed) tests were conducted in the area and its environs using “Schlumberger” electrode array. The VES were carried out with half current electrode spacing with the spread Im-928m at six (06) points per decade. The results of the interpretation identified wet sand/clean sand as perched aquifer which can deliver ground water to the bore-hole at perceptible rates between depths of 85m to 145m below sea level. The resistivity of the aquifer detected varied from 95.0 ohm-m to 110,000 ohm-m while the thickness ranged from 30.0m to 105.0m.

Exploration for Marble Deposit in Parts of Okpella, South-Southern Nigeria

2019 ◽  
pp. 1-7
Author(s):  
K. O. Ozegin
Keyword(s):  
Electrical Resistivity ◽  
Electrode Spacing ◽  
Clayey Sand ◽  
Current Electrode ◽  
Electrical Resistivity Survey ◽  
Resistivity Method ◽  
Resistivity Survey ◽  
Surface Measurements ◽  
Electrical Sounding ◽  
Electrical Resistivity Method

The ultimate aim of the electrical resistivity survey is to determine the resistivity distribution with depth on the basis of surface measurements of the apparent resistivity and to interpret it in terms of geology. Marble deposit was investigated with the application of electrical resistivity method using Vertical Electrical Sounding (VES) technique with the aim of characterising this deposit in parts of Okpella. Six (6) VES were acquired using the Schlumberger array for data acquisition with current electrode spacing varying from 1.0 to 150.0 m. The VES data obtained were interpreted using ipi2win Software. The results showed three layers indicating subsurface geologic sequence probed 26.4 m and beyond with clay/clayey sand (23.3 – 219.1 Ωm), sand (423 - 2040 Ωm) and marble (12661 - 404498 Ωm). The occurrence of marble deposit was revealed at VES points at 1, 2 and 5 in the studied area.  This study concluded that the study area had occurrence of the marble deposits, which would be of economic importance, if exploited.

scholarly journals GEOPHYSICAL CHARACTERIZATION OF AQUIFER SYSTEMS USING VERTICAL ELECTRICAL SOUNDING METHOD IN DEMSA, NORTHEAST NIGERIA

2020 ◽  
Vol 8 (11) ◽  
pp. 175-184
Author(s):  
Saleh Mustapha Babagana ◽  
Satendra Sharma
Keyword(s):  
Vertical Electrical Sounding ◽  
Secondary Porosity ◽  
Aquifer System ◽  
Resistivity Method ◽  
Aquifer Systems ◽  
Electrical Sounding ◽  
Lateral Extent ◽  
Electrical Resistivity Method ◽  
Northeast Nigeria

Electrical resistivity method using vertical electrical sounding (VES) technique and Schlumberger array was employed with the aim of delineating limits and types of aquifer system(s), and stratigraphic composition of the Demsa area, a confluence of Benue River in Northeast Nigeria. The result revealed that the hydrogeology of the area may be controlled by fractures (secondary porosity) developed in sedimentary units. Two aquifers, namely the upper alluvial aquifer and the confined deeper aquifer systems exist in the study area. The two aquifers occur at depths of 20.5 – 41 m, and 43.8 – 78.9 m respectively, and are separated by a thin layer of poorly permeable clays and silts, ranged between 1.1 – 5.3 m in thickness. The lateral extent of the aquifer systems extend almost evenly across the area. The aquifers’ thickness tends to decrease with increase in distance of VES station from the Benue River which suggested that the aquifer systems are probably recharged by direct escapement of the Benue River.

scholarly journals Application of Vertical Electrical Sounding for Study the Proposed dam site at Wadi Ma’doo, Shabwah Governorate, Yemen

2020 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Two Dimensions ◽  
Shallow Foundation ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Geophysical Investigation ◽  
Engineering Structures ◽  
Geoelectric Section ◽  
True Resistivity ◽  
Dam Site ◽  
Electrical Sounding

Application of geophysical investigation has been carried out using Vertical Electrical Sounding (VES) at the proposed site in wadi Ma’doo, Shabwah Governorate, Yemen to determine the geophysical parameters that can be used to evaluate the subsurface geological layering characteristics of the selection proposed site for dam construction. The Schlumberger array was used for the data acquisition. One-dimensional numerical inversion of individual DC resistivity was used to enhance the processing of the results for better achievement of the aim of the study. Model obtained from the 2D inversion of each VES were used for construction of geoelectric section which exhibit the main geoelectric characteristics of the geological units present in the site. The interpretation of the field data was carried out using the IP12WIN software, which converts the apparent resistivity as a function of electrode spacing to the true resistivity as a function of depth in two dimensions. The interpretation results showed that the geoelectric section consists of three layers namely: boulders and gravels, sandy to pebbly and hard limestone. The layer resistivities and thicknesses range from 18.17 to 746.20 Ω.m/0.20 to 1.084 m, 53 to 60 Ω.m/ 0.20 to 3.059 m and 455 to 1890 Ω.m, respectively. The investigation revealed that the limestone rocks is suitable for shallow foundation for proposed dam engineering structures.

scholarly journals Geoelectrical and Microbial Assessment of the Agbarho Abattoir Effluent on Ground Water Quality in Agbarho Community, Delta State

2020 ◽  
pp. 3739-3748
Author(s):  
V.B. Olaseni ◽  
Y.S. Onifade ◽  
S.A. Adeleye ◽  
V.A. Ogah
Keyword(s):  
Ph Value ◽  
Fine Sand ◽  
Total Coliform ◽  
Vertical Electrical Sounding ◽  
World Health ◽  
Electrode Spacing ◽  
Near Surface ◽  
Low Resistivity ◽  
Lateral Distance ◽  
Electrical Sounding

The effluence of Agbarho abattoir wastes and animals’ dung on near surface groundwater quality was geoelectrically investigated using 2-Dimensional Electrical Resistivity by engaging Wenner array configuration using PASI-16GL Terrameter. Four traverses of lateral distance of 50m with 2.5m electrode spacing were gotten from the study area and the acquired data was processed and inverted using RES2DINV software so as to delineate the trend of migration of contaminants. Borehole-water samples were collected within the study area for both physiochemical and microbiological analyzes while the depth of aquifer (groundwater) was determined by employing Vertical Electrical Sounding (VES). The 2-Dimensional Inversion model for traverse 1 and 2 revealed a low resistivity value of 0.445Ωm and 2.53Ωm respectively and this occurred at the top soil. Also, the low resistivity value of 0.319Ωm in traverse 3 was indicated in the second layer at the lateral distance between 15m to 35m and at the depth of 6.22m. The model in traverse 4 revealed low resistivity value of 0.374Ωm from the top layer down to the fourth layer at the depth of 9.8m. These low resistivity values indicate high conductivity of bacterial and algae of the animal waste and this can be attributed to the presence of suspected contaminants plume of the abattoir. The depth of aquifer revealed by Vertical Electrical Sounding was 8.9m which is in third layer and the lithology was found to be as fine sand. All physiochemical results including pH value which is 5.1 (acidic in nature) fell below the permissible limit of World Health Organization (WHO). The microbial result showed the total coliform count value as 70 cfu/ml which is not in-line with WHO standard. In conclusion, the study showed that the contaminant exists and pose threat to groundwater in the study area.

scholarly journals Assessment of the Leachate Contamination Level of Groundwater Resource at a Dumpsite, In Minna, North Central, Nigeria Using Resistivity Method

2019 ◽  
Vol 4 (2) ◽  
pp. 116
Author(s):  
Priscillia Egbelelulu ◽  
Taiwo Adewumi ◽  
Emmanuel Emeka Udensi ◽  
Naeem Abdulsalam ◽  
Oke Israel Okwokwo
Keyword(s):  
Research Work ◽  
Control Site ◽  
Vertical Electrical Sounding ◽  
Contamination Level ◽  
Basement Complex ◽  
North Central ◽  
Contaminant Plumes ◽  
Resistivity Method ◽  
Electrical Sounding ◽  
Analyse Data

This research work focused on the use of direct current resistivity method to analyse data collected from refuse dumpsite at eastern bye pass Minna. The study area lies approximately on longitude 60 36’19.84”E to 6036’23.15”E and latitude 90 38’04.97”N to 9038’08.25”N, with a dimension of 100m x 100m within the basement complex of north central Nigeria. Vertical Electrical Sounding was carried out on the dumpsite with the aim of delineating the leachate contaminant plumes using resistivity method. Nine electrical resistivity profiles were measured on the site. Six transverse profiles were conducted on the dumpsite with thirty-six vertical electrical sounding (VES) point, three transverse profiles was also conducted on the control site which is 100 meters away from the dumpsite having nine vertical electrical sounding (VES) point and a dimension of 40m x 40m. The resistivity data obtained was analyzed using winresist software. The data obtained from the study area revealed three underlain layer they are the topsoil, fractured basement and fresh basement. The dumpsite was typified by A-types and H-types of curve and the control site was typified by H-type of curves. Iso–resistivity maps at various depths were observed, at the surface, 3m, 5m,7m, and 10m for the dumpsite and the control site. It can therefore be inferred from this study that the depth of contamination is 7 meter and aquifer found within this depth are most likely to be contaminated by leachate and water bearing formation beyond the depth of 7m is safe from contamination. The rate of contamination of the study area is approximately 1.0 meter per year.

scholarly journals Magnetic and Restivity Investigation of Geologic Structures in the Basement Complex of Aran-Orin, Kwara-State, Nigeria.

2021 ◽  
Author(s):  
'Muyiwa Adekunle Adeyanju ◽  
Oluwaseun Victoria Fatoye ◽  
O.E Oyanameh
Keyword(s):  
Electrode Configuration ◽  
Vertical Electrical Sounding ◽  
Electrode Spacing ◽  
Basement Complex ◽  
Current Electrode ◽  
Weathered Rock ◽  
Overburden Thickness ◽  
Electrical Survey ◽  
Electrical Sounding ◽  
Depth Ranges

Abstract The study aims to integrate magnetic and vertical electrical sounding (VES) resistivity methods to determine groundwater prospective in part of Aran-orin Sheet 224. A total of three traverses were established in the study area for the vertical electrical sounding using the Schlumberger electrode configuration. A total of 17 VES points was established using the ABEM Terrameter SAS 1000C model with maximum half-current electrode spacing (AB/2) of 120m. A total of eight traverses were established for the magnetics survey with station intervals of 10 m and inter-profile spacing of 100 m. The magnetic and VES data were qualitatively and quantitatively interpreted using IPI2WIN and OASIS MONTAJ package respectively. The geo-electric sections reveal a maximum of 3-4 layers beneath the sub-surface an overburden thickness ranges from 8.2 m to 64.9 m and the corresponding lithology inferred are topsoil, weathered Rock, fractured basement and fresh basement. The depth to basement using half-width method showed that the depth ranges from 8.4-56.04 m, which corresponds with the electrical survey.

scholarly journals Optimasi Iterasi dan Root Means Square (RMS) dalam Penentuan Batas Litologi dari Vertikal Elektrical Sounding (VES)

2020 ◽  
Vol 8 (1) ◽  
pp. 5058
Author(s):  
Noor Fauzi Isniarno ◽  
Muhammad Reyhand Alfarrel ◽  
Bagea Bagja Gumelar
Keyword(s):  
Data Processing ◽  
Root Mean Square ◽  
Vertical Electrical Sounding ◽  
Mean Square ◽  
Resistivity Method ◽  
Top Soil ◽  
Electrical Sounding ◽  
Geoelectric Resistivity ◽  
Geoelectric Data

Abstract. The absence of outcrops in the field will make it difficult to interpret geoelectric data. To be able to determine the lithological limit below the surface, a geoelectric resistivity method with a Schlumberger (Vertical Electrical Sounding) configuration with different iteration and Root Mean Square (RMS) is used. Measurements were made with 4 geoelectric points and at the first point 2 intersections were intersected with each stretch length of 50 meters. Data processing is done manually and continued using the PROGRESS software to interpret the data and adjust the iteration and Root Mean Square (RMS). Based on the results of the interpretation of the intersection between stretch 1 and stretch 2 depict the inside of the Top Soil and the iteration obtained will be a reference to interpret the next geoelectric data. Keywords: geoelectrical method, schlumberger configuration, iteration, RMS Abstrak. Tidak terdapatnya singkapan dilapangan akan membuat kesulitan dalam menginterpretasi data geolistrik. Untuk dapat mengetahui batas litologi dibawah permukaan digunakan metode geolistrik tahanan jenis dengan konfigurasi schlumberger (Vertical Electrical Sounding) dengan perbedaan iterasi dan Root Mean Square (RMS). Pengukuran dilakukan dengan 4 titik geolistrik dan pada titik pertama dilakukan 2 bentangan secara berpotongan dengan masing – masing panjang bentangannya 50 meter. Pengolahan data dilakukan secara manual dan dilanjutkan menggunakan perangkat lunak PROGRESS untuk menginterpretasi data dan menyesuaikan iterasi dan Root Mean Square (RMS). Berdasarkan hasil interpretasi perpotongan antara bentangan 1 dan bentangan 2 menggambarkan kedalam dari Top Soil dan iterasi yang didapatkan akan menjadi acuan untuk menginterpretasi data geolistrik selanjutnya. Kata Kunci : metode geolistrik, konfigurasi schlumberger, Iterasi, RMS

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