FUPRESpace
Welcome to FUPRESpace, The Institutional Repository of Federal University of Petroleum Resources. A collection of theses, articles, books, videos, images, lectures, papers, data sets, and all types of digital content originating from the Federal University of Petroleum Resources, Nigeria. This repository is managed by the University Library
Communities in DSpace
Select a community to browse its collections.
- This houses intellectual collections of Biochemistry Department
- This contains the intellectual works of the faculty members in the College of Computing
- This contains the intellectual works of the faculty members in the College of Engineering and Technology
- This contains the intellectual works of the faculty member in the College of Maritime and Offshore Studies.
- This contains the intellectual works of the faculty members in the College of Science
Recent Submissions
2D Geo-electrical Resistivity Imaging of Clay Deposit in Agbonmwoba Village, Edo State, Nigeria
(IISTE (International Institute for Science, Technology and Education), 2020-10-31) Osisanya, O.W.; Macpaul, A.P.; Isaac, K.A.; Folorunso, A.Z.
This study involves delineation of clay deposits in Agbonmwoba village area of Obaretin town, Edo state using 2D geo-electrical resistivity tomography technique to image the extent and economic quantity of the deposit, in order to appraise its commercial viability. The Wenner-Schlumberger electrode configuration was employed in five different locations within the study area, and a total of ten (10) Wenner-Schlumberger soundings were acquired in the area with a spread length of 200m along each traverse. The field data was inverted using the Earth Imager 2D inversion software program. Low resistivity geologic formations (ρ < 50 Ωm) were interpreted as clay formations using knowledge of regional geology of the area as reported from previous studies. Along traverses 1, 2 and 8 sampled at old Sapele road Ekiosa clay deposits was imaged at depth of 8.9-15m at lateral spread of 30m and 70m in TR1, 8.9-17.9m in TR2 and 4m in TR8. In traverses 3 and 4 sampled along Presco road in Obaretin, clay deposits were imaged at 8.9m from the surface in TR3 and 8.9-10m in TR4 at lateral spread of 70m and 100m respectively. Traverses 5, 6 and 7 were sampled at Agbonmwoba primary school, and clay deposit was imaged at 17.9-21m in TR5 at lateral spread of 80-90m, clayey sand was imaged at 7.5m (< 8.9m) and sand deposit was imaged at 24.0m (< 26.8m) which underlies clay. In TR6, clay deposit was imaged at 8.9m from the surface and
in TR7, clay deposits were imaged in layers at profound depths >30m at lateral spreads of 20-80m and 130-160m respectively. In TR8 clay deposit was imaged at 4m from the surface. In TR9 clay deposit was imaged at 8.9- 17.9m at lateral spread of 90-110m and in TR10 clay deposit was imaged at 17.9-20m at lateral spread of 40m and 100-120m respectively. This results show that clay deposits imaged along traverses 1, 2, 4, 5, 9, and 10 are located at proximal depths within the subsurface and this implies that the subsurface geology distribution along these profiles is slightly homogenous in lithology, and clay deposits along these traverses are exploitable, while clay deposits along traverses 3, 6 and 8 are found at the surface (0-8.9 m) as thin clay deposits and therefore not commercially viable for exploitation. Clay deposits imaged in traverse 7 was relatively massive in size (subsurface distribution) and was observed at profound depth of 26.8-35.7m (> 30m), which makes it commercially viable for exploitation compared with other traverses. The results was correlated with borehole lithologic section drilled along TR5 in the area and both sections agreed in lithologic sequence with respect to depth. Thus, 2D resistivity imaging gives a better vertical and lateral view of subsurface layers than geo-electric sections computed from 1D models, because of its ability to give a continuous record of subsurface formations at greater dept
Geotechnical Investigation of a Proposed Dam Project, Iyah Gbede, Kogi State, Nigeria
(RSIS International, 2021) Oyanameh, O. E.; Olabode, O. O.; Korode, A. I.; Osisanya, O.W.; Fatoye, O. V.
Geotechnical study was conducted at the proposed Dam project of Iyah Gbede, Ijimu Local Government Area of Kogi State with the aim of evaluating the subsoil layers that constitute the foundation soils and their competence as foundation soils for the civil engineering structures. The study involved drilling of
three (3) boreholes and eleven (11) trial pits as well as Standard Penetration Test (SPT) to obtain the in situ strength parameters of the sandy layers. The lithological formations that constitute the study area layers are lateritic top soil, grey brown sandy clay, yellowish brown coarse sand, gravel and weathered rock. All the soils have average natural moisture content because it agrees with the average range of (5 – 15%) specified by Federal Ministry of Works and Housing FMWH, (1997) for civil engineering construction which is an indication of low water absorption capacities of the soil materials. The results of the
geotechnical parameters of the soils obtained indicate good characteristics as construction materials with good bearing strength, good baseline information and foundation design for the establishment of the proposed dam site. .
Assessment of Subsurface Competency Using Geotechnical Method of a Proposed Structure F.C.T Nigeria
(Bilingual Publishing Co., 2022-12-30) Osisanya, O.W.; Diyanuwa, A.B.; Korode, A.I.; Ibitoye, A.T.; Ajibade, F.Z.
Structural failure has been recently happenings mostly in the commercially populated states along the coastal line in Nigeria. As a result, an open field at a chosen location in Abuja, Nigeria, was investigated. For the purpose of this study, test bores were drilled and Standard Penetration Tests (SPT)
were conducted at every 1.5 m interval up to a maximum depth of 12.0 m with the bearing pressure ranging between 20 kN/m2 and 1000 kN/m2. 3 test bores were drilled within the plot location, and samples were obtained at the test bore’s locations for laboratory analysis. Findings revealed that
subsurface lithology found at the site within the explored depths of 0.0 12.0 m is mostly silty sand, laterite, sandy clay, silty clay, clayey sand, and weathered rock. The findings from the sub-soils of the different places and their bearing pressures were computed with SPT N value. Building foundations may be rigid raft foundations at a depth of 2.0 meters below the present ground level, according to bearing capacity values that range from 20 kN/m2 to 60 kN/m2 at 1.5 to 3.0 meters. The recommended building foundations take into account the sub-soil’s characteristics at the drilling places at a depth of between 1.0 and 3.0 meters. The structure might also be supported by frictional piles buried 10 meters beneath the surface.
Integration of 2D and 3D Electrical Resistivity Tomography for Volumetric Investigation of Geologic Formations in a Sedimentary Terrain
(International Journal of Earth Sciences Knowledge and Applications, 2023) Murphy, O.I.; Osisanya, W.O.; Avwenaghegha, O.J.; Korode, A.I.; Amoyedo, A.A.
In a wide variety of research fields, including agriculture, botany, road construction and mineral exploration, it is crucial to analyse the volume of dominant geologic formations in an area especially those of very high economic importance. Volumetric evaluation of geologic formations is an essential stride towards economic and local content development. Ten (10) 2D geoelectrical resistivity profiles were gathered in parallel and
perpendicular equidistant lines using the Wenner array with maximum electrodes spread of 200m to investigate the subsurface geological stratification in both the vertical and horizontal direction at Obaretin community in the Edo State, Nigeria. Using Earth Imager 2D software, 2D resistivity-depth models were created from the 2D resistivity dataset with the use of wenner aray. In order to create a 3D depth slice and a 3D block model for the subsurface stratification, the survey dataset was compiled into a single 3D
data set and inverted using Res3Dinv software and Voxler 4.0 programs. The 2D resisitivity imaging results revealed three geo-electric major layers at Obaretin, which are indicative of topsoil, silt sand, clayey sand, and lateritic sand with sandstone intercalations as the dominant geologic formations in the study area. The Resistivity lithology of the study area also showed three geo-electric subsurface layers to an
appreciable depth of 40 m for Silt sand, topsoil (299–1791 Ωm), lateritic sand with sandstones intercalations (985–3253 Ωm), and clayey sand (48.9–1791 Ωm) were delineated. The study revealed that the dominant formations are laterite, silt sand and clayey sand which showed an estimated volumetrics of 373,508m3, 520,320 m3 and 194,800 m3 per two million m3 respectively which are in high economic quantities. Hence, the adoption of 2D and 3D electrical resistivity imaging has aided the successful
volumetric assessment of geologic formations which are of high economic value in the study area.
Aeromagnetic Interpretation of Basement Structures and Geometry in Parts of the Middle Benue Trough, North Central, Nigeria
(Bilingual Publishing Co., 2022-11-30) Esho, O.O.; Osisanya, W.O.; Ibitoye, T.A.; Ajibade, F.Z.; Tokunbo, S.F.
The research of an analysis of aeromagnetic data collected in the middle Benue Trough in north-central Nigeria is presented. A detailed analysis of basement structures is conducted in order to identify regions with high hydrocarbon potential that is different from those discovered by earlier researchers. Aeromagnetic data were filtered by using the Butterworth and Gaussian filters, transformed by engaging the reduction to the equator technique, and subsequently enhanced. To estimate magnetic basement
depths at various places throughout the basin, the Euler deconvolution depth weighting approach was used. Eleven (11) sub-basins with depths ranging from –2000 m to –8000 m were also identified by Euler’s findings. The sub-basins trend in the NE-SW direction while the average sediment thickness is found to be more than 3 km. The extracted structural features indicate areas like Kadi Blam and Kado areas in the southeastern part and Ogoja and Obudu in the southern part of the study area as regions with high
structural densities. These areas coincide with the areas delineated as the sub-basins. The cross-sections generated reveal depressions caused by the action of some tectonic activities in the area. This study identified undulating basement topography believed to be due to tectonic activities as well as
five areas that are possible targets for hydrocarbon exploration.