Relevant bibliographies by topics / Geology, nigeria

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  2. Dissertations / Theses
  3. Books
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Academic literature on the topic 'Geology, nigeria'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Geology, nigeria"

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Mayomi, Ikusemoran, Didams Gideon, and Michael Abashiya. "Analysis of the Spatial Distribution of Geology and Pedologic Formations in Gombe State, North Eastern Nigeria." Journal of Geography and Geology 10, no. 1 (February 27, 2018): 83. http://dx.doi.org/10.5539/jgg.v10n1p83.

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This paper focused on the mapping and analysis of the spatial distribution of the geology and soils in Gombe State. The ever rapid rise in population of the country has called for the need for expansion of agricultural activities which necessitates an in-depth knowledge of the spatial location of soil types for agricultural related activities. There is also the need to explore the environment for possible endowments of mineral resources which can be exploited to meet the economic demands of the populace. The soil and geology maps of Gombe State were extracted from existing soil and geology maps of Nigeria, obtained from Food and Agricultural Organization (FAO)/United Nations Education, Scientific and Cultural Organization (UNESCO)/International Soil Reference and Information Center (ISRIC) and Nigeria Geological Survey Agency (NGSA) respectively. The soil and geology types were digitized as polygon, while other important features such as LGA boundaries, state boundaries were also digitized and overlain on the two generated maps (soils and geology). The clip sub module of the ArcGIS was used to delineate each of the LGAs in both maps, that is, extraction of each LGA as well as the soil and geology units in each of the LGAs. The area in square kilometers of the soils and geology units in the entire state and in each LGA were obtained through the use of the area calculation module of the ArcGIS. The result of the study revealed that Gombe State consists of fourteen (14) geologic units. Among them, the KerriKerri which comprised of sandstone, shale and clay geologic unit covers almost half (42.75%) of the State. Limestone and Shale of the Pindiga formation which are principally used for cement making are found mainly in Funakaye LGA which is the home of Ashaka Cement. It was also found out that there are eleven soil units in the state with Nitisols almost covering half of the state. It was recommended that the generated soil and geologic maps of the State are expected to be considered for mineral exploration and crop suitability assessments in order to reduce time, cost and energy that would likely be incurred if the entire state is assessed.
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O., Ademila, Akingboye A. S., and Ojamomi A. I. "Radiometric survey in geological mapping of basement complex area of parts of Southwestern Nigeria." VIETNAM JOURNAL OF EARTH SCIENCES 40, no. 3 (June 4, 2018): 288–98. http://dx.doi.org/10.15625/0866-7187/40/3/12619.

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Radiometric methods were used to investigate the radioactive properties of rocks in parts of southwestern Nigeria with a view to interpreting the geological structure and abundance of natural radioactive elements in the main type rocks. The airborne radiometric dataset of Ikole Sheet and ground radiometric data recorded from eight traverses in Akoko axis of the study area were processed. Results presented as maps and profiles displayed variations of high and low radioactive concentrations across the area. These maps showed moderate to very high concentrations and very low to low concentrations of the radioelements; uranium (4.5-13.0 ppm); (LLD-low limit of detection -3.0 ppm), Th (25.0-70.0 ppm); (8.5-16.0 ppm) and K (2.0-4.0 %); but the most often observed values are in the range 2.5-7.0 ppm, 22.0-30.0 ppm and 3.0-4.0% for U, Th, and K respectively. High concentrations imply that the rocks are crystalline, undeformed and are rich in feldspar and U-Th bearing minerals. While low radioactivity is attributed to varying geologic framework compositions; weathered materials or fluids formed as a result of intense metamorphism. The radiometric datasets proved valuable in delineating different rock types and serve as a complementary tool in identifying geochemical zoning of rocks in the area.ReferencesAjibade A.C. and Fitches W.R., 1988. The Nigerian Precambrian and the Pan-African Orogeny, Precambrian Geology of Nigeria, 45-53.Ajibade A.C., Woakes M. and Rahaman M.A., 1987.Proterozoic crustal development in Pan-African regime of Nigeria: In A. Croner (ed.) Proterozoic Lithospheric Evolution Geodynamics, 17, 259-231.Appleton J.D., Miles J.C.H., Green B.M.R, Larmour R., 2008. Pilot study of the application of Tellus airborne radiometric and soil geochemical data for radon mapping. Journal of Environmental Radioactivity, 99, 1687-1697.Arisekola T.M. and Ajenipa R.A., 2013. Geophysical data results preliminary application to uranium and thorium exploration. IAEA-CYTED-UNECE Workshop on UNFC-2009 at Santiago, Chile 9-12, July, 12.Bayowa O.G., Olorunfemi O.M., Akinluyi O.F. and Ademilua O.L., 2014.A Preliminary Approach to Groundwater Potential Appraisal of Ekiti State, Southwestern Nigeria. International Journal of Science and Technology (IJST), 4(3), 48-58.Bierwirth P.N., 1997. The use of airborne gamma-emission data for detecting soil properties.Proceedings of the Third International Airborne Remote Sensing Conference and Exhibition.Copenhagen, Denmark.Grasty R.L. and Multala J., 1991. A correlation technique for separating natural and man-made airborne gamma-ray spectra. In: Current Research, Part D, Geological Survey of Canada, 111-116.Grasty R.L., Minty B.R.S., 1995a. A guide to the technical specifications for airborne gamma ray surveys. Australian Geological Survey Organization, Record.Grasty R.L., Minty B.R.S., 1995b. The standardization of airborne gamma-ray surveys in Australia. Exploration Geophysics, 26, 276-283.IAEA, 1991. Airborne gamma ray spectrometer surveying, International Atomic Energy Agency, Technical Report Series, 323.IAEA, 2007.International Atomic Energy Agency. Safety Glossary, Terminology used in Nuclear Safety and Radiation Protection-2007 Edition.Jones H.A. and Hockey, 1964.The Geology of part of’ Southwestern Nigeria.Geological Survey, Nigeria bulletin, 31.Kearey P., Brooks M. and Hill I., 2002. An Introduction to Geophysical Exploration.3rd ed. Oxford: Blackwell Science, 262.Milsom J., 2003. Field Geophysics: The geological field guide series, John Milsom University College, London. Published by John Wiley and Sons Ltd. Third edition, 51-70.MontajTM Tutorial, 2004. Two - Dimensional frequency domain processing of potential field data.Nigeria Geological Survey Agency (NGSA), 2009. Geological map of Nigeria prepared by Nigeria Geological Survey Agency, 31, ShetimaMangono Crescent Utako District, Garki, Abuja, Nigeria.Omosanya K.O., Ariyo S.O., Kaigama U., Mosuro G.O., and Laniyan T.A., 2015. An outcrop evidence for polycyclic orogenies in the basement complex of Southwestern Nigeria. Journal of Geography and Geology, 7(3), 24-34.Oyawoye, M.O., 1972. The Basement Complex of Nigeria.In African Geology. T.F.J. Dessauvagie and A.J. Whiteman (Eds) Ibadan University Press, 67-99.Oyinloye A.O., 2011. Geology and Geotectonic Setting of the Basement Complex Rocks in Southwestern Nigeria: Implications on Provenance and Evolution. Earth and Environmental Sciences, 98-117. ISBN: 978-953-307-468-9.Rahaman M.A., 1981. Recent Advances in the Study of the Basement Complex of Nigeria.First Symposium on the Precambrian Geology of Nigeria, Summary.Rahaman M.A., Emofureta W.O. and Vachette M., 1983. The potassic-grades of the Igbeti area: Further evaluation of the polycyclic evolution of the Pan-African Belt in South-western Nigeria. Precambrian Resources, 22, 75-92.Woakes M., Rahaman M.A., Ajibade A.C., 1987. Some Metallogenetic Features of the Nigerian Basement. Journal of African Earth Sciences, 6(5), 655-664.
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Janet Agati Yakubu, Sunday Sani Daku, Rhoda Bernard Gusikit, Edwin David Emmanuel, and Mbushu Caleb Mangai. "Causes of failure of Nigerian roads: A review." World Journal of Advanced Engineering Technology and Sciences 8, no. 2 (March 30, 2023): 217–23. http://dx.doi.org/10.30574/wjaets.2023.8.2.0079.

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Many cases of road failures have been reported by experts in Nigeria from North to South, East to West. Most of these roads are in a deplorable condition and professionals have attributed it to a number of causes. This study reviewed causes of failure of roads in Nigeria and categorized them into lack of careful and diligent geotechnical studies, inadequate knowledge of geology of the area, and other conditions. Roads that have failed due to lack of proper geotechnical studies include; Awotan-Akufo, Sagamu-Papalanto highway, Onitsha-Enugu Expressway and Akoko highway. Geotechnical studies provide information on the physical and mechanical properties of soil or rock around or brought to the construction site. Some roads have failed as a result of improper consideration of geology for instance the Shagamu -Benin expressway, Lagos- Ibadan expressway, Ibadan -Ife, Osogbo -Iwo expressway, Abakaliki area and Port Harcourt -Enugu expressway. Roads are founded on geologic earth materials and are greatly controlled by geology; hence, geology is very important in road construction. Other conditions such as old age, inadequate maintenance, poor design and construction, lack of drainage, use of poor and substandard materials, and heavy traffic have also led to road failures. Despite the absence of definite statistics, most experts agree that the rate of roads failure have increased in recent years in Nigeria. There is strong evidence to suggest that while geotechnical processes are becoming better controlled and more reliable, failures of small, medium and big scale geotechnical works such as roads continue to arise with embarrassing frequency in the country.
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Asaah, A. V. "Geology and Mineral Resources of Nigeria." Economic Geology 106, no. 3 (May 1, 2011): 523. http://dx.doi.org/10.2113/econgeo.106.3.523.

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A.K, Amuda,, Danbatta, U.A, and Najime, T. "Geology and Gold Mineralization around Kutcheri, northwestern Nigeria." IOSR Journal of Applied Geology and Geophysics 1, no. 6 (2013): 18–24. http://dx.doi.org/10.9790/0990-0161824.

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Ike, E. C., and E. M. Sakoma. "Field geology of the Dago ring complex, Nigeria." Journal of African Earth Sciences (1983) 3, no. 1-2 (January 1985): 97–100. http://dx.doi.org/10.1016/0899-5362(85)90027-2.

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O Akinola Abel, Oluwatoyin. "Geology, Mineral Wealth and Tourism Potentials of Ekiti State, South-Western Nigeria." International Journal of Science and Research (IJSR) 12, no. 1 (January 5, 2023): 774–88. http://dx.doi.org/10.21275/sr23118173304.

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Ayeni, J. K., A. I. Haruna, A. S. Maigari, T. P. Bata, and A. E. Afolabi et al. "FIELD GEOLOGY AND PETROGRAPHY AROUND NABARDO-TORO ENVIRONS, NORTH EASTERN, NIGERIA." Anchor University Journal of Science and Technology 4, no. 2 (February 16, 2024): 183–203. http://dx.doi.org/10.4314/aujst.v4i2.7.

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Background: The mapping exercise within the study ar ea on a scale of 1:25,000 was carried out to study the rocks, determine their distribution, composition, structures and assess the economic potential of the area. Objectives: The geology mapping aim to identify and understand the various geological structures present in the area to gain insights into the tectonic history and deformation processes that have shaped the area and to identify the minerals present in the rock, to understand the rock formation, composition and potential geologic processes involved. Method: Method of mapping involved road, footpath, rivers and stream traverses. Representative rock samples were collected for petrographic studies and geochemical analysis to establish the geology of the study area. Result: The study area which is part of Sheet 148, Toro SE is entirely typical of the Nigerian Basement Complex and is underlain by the following rock units: Migmatitic Gneiss, Granite gneiss, mica schist and porphyritic granite. The Migmatitic Gneiss constitutes the largest group of the rock units covering more than 45% of the mapped area and trending mainly NW/SE with few exceptions in an almost N/S to NE/SW direction. It is pertinent to know that almost E-W structures were also observed which forms relics of the older structure believed to have been affected by the eburnean (possibly) orogenic event. The granite gneiss shares boundary mainly with the migmatitic gneiss showing a weak foliation of light and dark materials. The mica schist is exposed at the western end, highly weathered with a general trend of NW/SE. The porphyritic granite intruded both the migmatite and granite gneiss occurring prominently as hilly and bouldery outcrops. However, flat lying low lying was also observed in some other localities. With respect to field observation and petrographical study the lithologies encountered were grouped into nine (9) categories- homogeneous, inhomogeneous, stromatic, banded orthogneiss, nebulitic, apo granite, pegmatite, intermediate and schist.Conclusion: Field evidence suggests that the study area has undergone an episode of metamorphism and deformations as depicted by the structural features like preferred orientation of the mineralogical and lithological units. It was also observed from the field measurements, that the main structural trend within the study area is from NNE/SSW.
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Agbor, Ako Thomas. "Geology and Geochemistry of Zungeru Amphibolites, North Central Nigeria." Universal Journal of Geoscience 2, no. 4 (April 2014): 116–22. http://dx.doi.org/10.13189/ujg.2014.020402.

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Stephen Onyejiuwaka, Ibe, and Nwokeabia Charity Nkiru. "Application of airborne radiometric method in geologic mapping of Malufashi area and Environs, Northwestern Nigeria." International Journal of Advanced Geosciences 8, no. 2 (September 30, 2020): 179. http://dx.doi.org/10.14419/ijag.v8i2.31071.

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In this study, the airborne radiometric data over Masufashi Area of Katsina State and Environs, Northwestern Nigeria were acquired, processed and gridded to generate the concentration maps of percentage Potassium, equivalent Thorium and equivalent Uranium in order to carry out the geologic mapping of the area. Additionally, the abundance ratios, U/Th, U/K and Th/K and the ternary images of the three radioactive elements were produced. The images obtained from the radiometric data showed that the study area comprises five major rock types, based on their variation in the concentration of the three radioactive elements. The actual extent, boundary and distribution of the rock units within the study area were defined; hydrothermal alteration zones were mapped. The altered zones were noted to be associated with mineralization in the quartzite rich schist formation. The interpretation also proved valuable in demarcating some rock types with different properties. The delineated geology and hydrothermally altered zones led to the identification of nine zones with the potentials of gold mineralization. The delineated structures aided the design of the geologic map of the study area. This research showed the value added by airborne geophysics in geologic mapping and recommends the analysis of airborne data as a major phase during reconnaissance survey, prior to geologic mapping.
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Dissertations / Theses on the topic "Geology, nigeria"

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Edet, James John. "Neogene (Miocene-Early Pilocene) palynology and palynofacies of the Eastern Niger Delta, Nigeria." Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309080.

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Oboh, Francisca Emiede. "Palaeoenvironmental reconstruction of the E2.0 reservoir in the Kolo Creek Field, Niger Delta (Nigeria)." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359840.

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Onuba, Leonard Nnaemeka. "A preliminary analysis of the basement structure of the Cenozoic Niger Delta basin : insights from high-resolution potential field data." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231939.

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King, Stephen. "Sedimentary influence on the deformation of deep water deposits offshore Nigeria." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/97367/.

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A volume of 3D seismic data has been used to study the interplay of Cenozoic structural deformation and its relationship to sediment deposition offshore South-West Nigeria. The 3D survey encompasses an area that includes sediments derived from both the Niger Delta in the east and the Benin Embayment to the north. Sediments derived from the Niger Delta are comprised of deep water sands and shales deposited in channel levee turbidites and hemipelagic sheets, whilst those from the Benin Embayment are primarily fine grained and encompass large scale levees. The study area can be divided into two vertically separated tectonic domains, which are divided by a detachment interval. The vertical separation occurs at a level which is coincident with an apron of mass transport deposits which extends beyond the limits of the data, this complex is interpreted to have been deposited at the end of the Cretaceous. The Cenozoic interval has been modified by gravity driven tectonic activity which has resulted in two structurally dissimilar regions, which are separated by a strike slip fault zone. To the west of this strike slip fault zone is a region of primarily compressional deformation, to the east the majority of the deformation is extensional. The structural styles recognised, extension, compression and strike slip motion have been analysed to establish the timing and the causes of the deformation. The influence of the sediment dispersal upon the location and timing of the tectonic deformation has been inferred indicating that structural deformation in this region pre dates the onset of deposition from the Niger Delta. The deformation which occurred prior to the Niger Delta outbuilding was controlled by the sediment dispersal from the Benin Embayment and this earlier, sediment controlled deformation, has subsequently played a role in the modified gravity tectonics which has been observed.
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Sakoma, Emmanuel Manoah. "Magmatic and postmagmatic evolution of the Kwandonkaya anorogenic ring complex in the Nigerian A-type granite province." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34442.

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The Kwandonkaya complex is one of the Mesozoic Nigerian Younger Granite complexes, which belong to the within-plate A-type granite spectrum. The complex, comprised of three main intrusive centers, contains subvolcanic rocks, plutonic rocks, and localized occurrences of altered granite. In this study, the field, petrographic and mineral chemical characteristics of the complex are investigated, a model of evolution of the subvolcanic rocks is formulated, and the mode of genesis of the parental melt are proposed.
The Fe-rich mafic minerals documented in the subvolcanic rocks suggest a comagmatic suite, and low f(O$ sb2)$ at the time of crystallization (ca. QFM). The subvolcanic rocks are inferred, from mica chemistry, to have equilibrated with a fluid phase characterized by low average $f sb{ rm(HF)}/f sb{ rm(HCl)}$ values ($10 sp{-1.74}$ at 773 K); values of the same ratio are higher in plutonic rocks (10$ sp{-0.67}$ at 673 K), and they are even higher values in the drusy and mineralized variants of the biotite granite. The occurrence of orthoclase, orthoclase + microcline, and microcline reflects decreases in the degree of undercooling, related to size of intrusive unit, and in the An content of sanidine$ rm sb{ss},$ which precluded complete ordering. The successful conversion of a monoclinic precursor to microcline indicates an increase in degree of volatile build-up and retention, and in extent of rock-fluid interactions in the subsolidus range of temperatures. The temperature of closure was between 450 and 300$ sp circ$C for orthoclase-bearing rocks, and between 450 and 300$ sp circ$C for those with microcline $ pm$ orthoclase.
This granite also contains dark enclaves, formed by mingling of a hybrid magma with the evolved, but not on a scale that noticeably affected its geochemical features. Petrologic modelling of the felsic subvolcanic rocks show that the rock suite could have evolved by 29% Rayleigh fractionation of liquidus phases (cumulate: sanidine$ rm sb{ss}$: 88%, fayalite: 6%, hedenbergite: 5%, ilmenite: 1%). Trace element evolution requires 50% fractionation of the same phases. This disagreement, between the major and trace element models, results from the role of zircon, chevkinite, and allanite, not required in the major-element model. Selective trace-element enrichment followed by nonmodal melting of a lower crustal rocks, of granulitic composition, could produce the required parental melt by 20 to 60% melting.
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Kinnaird, Judith Ann. "Hydrothermal alteration and mineralisation of the Nigerian anorogenic ring complexes : with special reference to the Saiya Shokobo complex." Thesis, University of St Andrews, 1987. http://hdl.handle.net/10023/13407.

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The Nigerian anorogenic province is characterised by more than 50 complexes. In some complexes, the outer limits of the complexes are defined partly or completely by a ring dyke. This intrusion, generally composed of granite porphyry, was the chief structural element of the complex and controlled the distribution of both volcanic and subvolcanic magmatism at high levels in the crust. The complexes are exposed at different erosional levels: in some complexes, particularly in the north, the volcanic products are preserved through caldera collapse. The majority of the volcanics are dominantly rhyolitic, some alkaline centres have preserved occasional successions of hawaiites, mugearites and trachytes confirming the dominantly alkaline trend from transitional ne-normative or ne-normative basalts. In other centres the volcanic cover has been removed so that the subvolcanic granites and syenites have been exposed. The subvolcanic assemblages include minor gabbros, monzogabbros and syenites. However granitic rocks are overwhelmingly dominant with fayalite hedenbergite granites, amphibole granites and syenites, albite-rich and albite-poor aegirine arfvedsonite granites and biotite granites. As far as the granites are concerned there was a natural progression from volcanic feeder intrusions to subvolcanic intrusions with fayalite and hedenbergite. The volcanic feeder intrusions were an important link during the caldera-forming stage between the subvolcanic roots and the overlying volcanic pile. They are represented by quartz and granite porphyries. The mineralogical assemblages of many of these complexes however, is often the result of interaction with residual fluids. Fluids affected the late magmatic and particularly the postmagnatic (subsolidus) crystallisation history of a cooling subvolcanic pluton and to some extent the overlying volcanic pile. Such hydrothermal alteration has undoubtedly modified the original granite chemistry. The residual fluids which were responsible for hydrothermal alteration also carried ore metals which were variously deposited at different stages of hydrothermal alteration. Mineralisation of a pluton generally occurred in the apical or marginal zones or in satellite dykes. Different styles of mineralisation tend to characterise different parts of a granite pluton and five separate zones have been recognised; the roof, marginal and contact zones of a pluton, the enclosing or overlying rocks and the surrounding ring dyke. Nine different styles of mineralisation have been identified including pervasive metasomatic disseminations; pegmatitic pods and lenses; stockworks and lodes. No particular type of hydrothermal alteration is restricted to one particular style of mineralisation and it is possible to have disseminated sodic, potassic, acid or silica metasomatism and altered ring dykes may show the effects of all these processes. The complexity of the subsolidus mineralogical re-equilibration has been appreciated by a detailed study of the Rishi area of the Saiya Shokobo caiplex. The Saiya Shokobo complex forms a distinctive hill mass in north central Nigeria which covers an area of approximately 250km. The main structural feature of the complex is the elliptical fracture 17km in diameter which has largely determined the outline of the central massif of the Saiya Shokobo Hills and has controlled the emplacement of several of the intrusions of the complex. The complex is dominated by volcanic rocks which are confined within this elliptical fracture. During the latest stage of magmatic activity, the emplacement of a granite pluton moved beyond the confines of the main fracture and was intruded eccentrically to the north east of the main part of the complex. Thus the biotite granite intruded both its own volcanic pile and the basement hornblende biotite monzogranite.
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Esan, Adegbenga Oluwafemi. "High resolution sequence stratigraphic and reservoir characterization studies of D-07, D-08 and E-01 sands, Block 2 Meren field, offshore Niger Delta." Texas A&M University, 2002. http://hdl.handle.net/1969.1/234.

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Meren field, located offshore Niger Delta, is one of the most prolific oil-producing fields in the Niger Delta. The upper Miocene D-07, D-08 and E-01 oil sands comprise a series of stacked hydrocarbon reservoirs in Block 2 of Meren field. These reservoir sandstones were deposited in offshore to upper shoreface environments. Seven depositional facies were identified in the studied interval, each with distinct lithology, sedimentary structures, trace fossils, and wire-line log character. The dominant lithofacies are (1) locally calcite-cemented highly-bioturbated, fine-grained sandstones, (middle to lower shoreface facies); (2) cross-bedded, fine- to medium-grained well-sorted sandstones (upper shoreface facies); (3) horizontal to sub-horizontal laminated, very-fine- to fine-grained sandstone (delta front facies); (4) massive very-fine- to fine-grained poorly-sorted sandstone (delta front facies); (5) muddy silt- to fine-grained wavy-bedded sandstone (lower shoreface facies); (6) very-fine- to fine-grained sandy mudstone (lower shoreface facies); and (7) massive, silty shales (offshore marine facies). Lithofacies have distinct mean petrophysical properties, although there is overlap in the range of values. The highest quality reservoir deposits are cross-bedded sands that were deposited in high-energy upper shoreface environments. Calcite cements in lower shoreface facies significantly reduce porosity and permeability. Integration of core and wire-line log data allowed porosity and permeability to be empirically determined from bulk density. The derived equation indicated that bulk density values could predict 80% of the variance in core porosity and permeability values. Three parasequence sets were interpreted, including one lower progradational and two upper retrogradational parasequence sets. The progradational parasequence set consists of upward-coarsening delta front to upper shoreface facies, whereas the upward-fining retrogradational parasequence sets are composed of middle to lower shoreface deposits overlain by offshore marine shales. The limited amount of core data and the relatively small area of investigation place serious constraints on stratigraphic interpretations. Two possible sequence stratigraphic interpretations are presented. The first interpretation suggests the deposits comprise a highstand systems tract overlain by a transgressive systems tract. A lowstand systems tract is restricted to an incised valley fill at the southeastern end of the study area. The alternate interpretation suggests the deposits comprise a falling stage systems tract overlain by transgressive systems tract.
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Bouzou, Moussa Ibrahim. "L'Erosion dans la vallée de Keita (Adar Niger) : contribution géomorphologique." Université Joseph Fourier (Grenoble), 1988. http://www.theses.fr/1988GRE19028.

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L'adar est une region sahelienne a climat semi-aride. Les precipitations sont faibles (300 a 400 mm) et capricieuses ; les temperatures elevees se conjuguent aux effets du vent pour provoquer une evaporation intense. Situee dans le bassin des iulliminden, cette region est aussi un plateau recouvert d'une cuirasse ferrugineuse et entaille par des vallees dans lesquelles se regroupe la quasi totalite de la population a vocation agro-pastorale. La pression demographique y est tres importante. De ce fait, c'est une region qui, outre les contraintes naturelles, est surchargee, ce qui entraine un desequilibre ecologique. Cette these est une contribution a la connaissance de ce milieu en alliant des observations geomorphologiques a l'experimentation sur parcelles. L'objectif vise ici est la recherche de l'amelioration des methodes traditionnelles de culture afin de mieux integrer les paysans a la lutte contre la degradation et l'erosion du sol
Adar is a sahelian region with a semi-arid climate. Situated in the iulliminden basin, this region is also a plateau covered by a ferruginous cuirass. The population is concentraded in the valleys. The result of demographic pression and natural constraints is ecological instability. This dissertation studies erosion in the keita valley and aims to ameliorate traditional antierosive fight methods ; in order to engage the peasants in the fight against the degradation of the environment
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Bayowa, Adejoke Victoria. "Levels of Polycyclic Aromatic Hydrocarbons (PAHs) in marshy soils and sediments within Warri and its environs, Negeria." Diss., 2014. http://hdl.handle.net/10500/18717.

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Marshy soil and sediment samples were collected during dry and rainy seasons within Warri, and Agbarho, 20km away as control. Levels of 16 USEPA priority Polycyclic Aromatic Hydrocarbons PAHs were determined using GC-FID. Source prediction analysis was also done. The study was in Niger Delta region, Nigeria from January to March and June to August 2012 in dry and wet seasons. Benzo(a)pyrene had highest total concentration of 3.302mg/kg and mean value of 1.651mg/kg in dry season soil samples. However, sediment samples had highest levels for total concentration of PAHs of 19.362mg/kg and mean of 4.840mg/kg for both dry and rainy seasons within Warri. PAHs concentration was higher in dry than rainy seasons for soil and sediment samples. Source prediction analysis revealed that PAHs in sediments for dry season were pyrolytic while rainy seasons were petrogenic sources. For soils, the dry season was mixed sources while the rainy season was petrogenic.
Environmental Science
M. Sc. (Environmental Science)
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Tshibubudze, Asinne. "Integrated strato-tectonic, U-Pb geochronology and metallogenic studies of the Oudalan-Gorouol volcano-sedimentary Belt ( OGB) and the Gorom-Gorom granitoid terrane (GGGT), Burkina Faso and Niger, West Africa." Thesis, 2015. http://hdl.handle.net/10539/17632.

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A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 2015.
The Palaeoproterozoic Baoulé-Mossi domain of the West African Craton in northeastern Burkina Faso hosts numerous gold deposits such as Essakane and Tarpako. Integrated strato-tectonic, geophysical, geochemical, geochronological, regional stratigraphic framework and metallogenic studies of the Oudalan-Gorouol volcano-sedimentary Belt and the Gorom-Gorom Granitoid Terrane have provided new insight into the geotectonic evolution of the northeastern part of Burkina Faso. This work outlines the structural context and architecture necessary for forming these deposits. In this work, a new strato-tectonic model is proposed for the area by integrating field data and geophysical, geochemical, and geochronological data. The integrated data highlights and characterizes the setting of the Essakane gold mine and gold camp relative to the location of other regional gold deposits, metamorphosed Birimian Supergroup, intrusive rocks and shear zones. Structural, geochemical and geochronological analyses have helped to clarify the geological evolution of the Oudalan-Gorouol volcano-sedimentary Belt and the Gorom-Gorom Granitoid Terrane during the Tangaean (D1) and Eburnean (D2) orogenies through to the Wabo Tampelse Event (D3). Further to these, zircon U-Pb geochronology data have demonstrated that the Oudalan-Gorouol volcano-sedimentary Belt and the Gorom-Gorom Granitoid Terrane represent some of the oldest outcropping geology in the Palaeoproterozoic Baoulé-Mossi domain recognised to date. The geochronology and geology suggest that the basement or a pre- Birimian crust to the Birimian Supergroup may be found in the northeast of Burkina Faso. The Eburnean Orogeny in northeastern Burkina Faso is preceded by two phases of deformation (D1-x and D1), and two phases of magmatism. The first, D1-x, is associated with the emplacement of the Dori Batholith at the onset of D1 (2164 – 2141 Ma). D1 ductile-brittle deformation formed F1 folds and discrete high-strain mylonite zones that deformed the Oudalan- Gorouol volcano-sedimentary Belt and the Gorom-Gorom Granitoid Terrane during a southwestdirected palaeo-principal compressive stress. The pre-Birimian to Birimian supracrustal rocks and intrusions were regionally metamorphosed during D1 to greenschist to amphibolite facies with development of mineral assemblage of quartz-chlorite-muscovite ± chloritoid to biotite-potash feldspar ± hornblende. D1 is also associated with volcanic arc type calc-alkaline magmatism, producing TTGs enriched in heavy rare earth elements. The Eburnean Orogeny (2130 – 1980 Ma) is characterised by northwest-southeast shortening; it was followed by north-northwest - south-southeast shortening with development of northeast trending sinistral strike-slip faults and shears. D2 brittle-(ductile) deformation is manifested by refolding of F1 by northeast-trending F2, and development of a pervasive northeast-trending S2 to S2-C foliation. Metamorphic grade attained greenschist facies during D2, with development of mineral assemblage of quartz-chlorite-muscovite ± actinolite. The Wabo Tampelse (D3) deformation event is brittle in character and does not significantly affect the regional geological architecture in the study area.
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Books on the topic "Geology, nigeria"

1

A, Kogbe C., ed. Geology of Nigeria. 2nd ed. Jos, Nigeria: Rock View (Nigeria) Ltd., 1989.

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Nigeria, Geological Survey of, ed. Precambrian geology of Nigeria. Kaduna South, Kaduna State, Nigeria: Geological Survey of Nigeria, 1988.

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Obaje, Nuhu George. Geology and Mineral Resources of Nigeria. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-92685-6.

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S. Dada, Silas, Samuel B. Olobaniyi, and Kamaldeen O.L Omosanya. Geology and Natural Resources of Nigeria. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908.

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Nigeria, Geological Survey of, and Nigeria. Federal Ministry of Mines and Power., eds. Abstracts of seminars of Geological Survey of Nigeria. [Lagos]: The Ministry, 1988.

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Garba, Ibrahim. Introduction to geology and mineral deposits of Nigeria. Zariya, Nigeria: Ganuwa Publishers, 1988.

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Thiemeyer, Heinrich. Untersuchungen zur spätpleistozänen und holozänen Landschaftsentwicklung im südwestlichen Tschadbecken (NE-Nigeria). Jena: Friedrich-Schiller-Universität Jena, Institut für Geographie, 1997.

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Adekoya, John Adeyinka. Metallic and industrial minerals of Nigeria. Ibadan]: [College Press], 1999.

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W, Bally A., ed. Course manual and atlas of structural styles on reflection profiles from the Niger Delta. [Tulsa, OK]: American Association of Petroleum Geologists, 2002.

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O, Ofoegbu Charles, ed. Groundwater and mineral resources of Nigeria. Braunschweig: F. Vieweg, 1988.

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Book chapters on the topic "Geology, nigeria"

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Tijani, Moshood N. "Geology of Nigeria." In Landscapes and Landforms of Nigeria, 3–32. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-17972-3_1.

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Adiat, Kola Abdul-Nafiu, Ayokunle A. Akinlalu, and Sherif Olumide Sanusi. "Groundwater Exploration in Nigeria." In Geology and Natural Resources of Nigeria, 445–59. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-26.

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Olawoki, Olumuyiwa A. "Central Benue Trough, Nigeria." In Geology and Natural Resources of Nigeria, 316–31. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-18.

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Eludoyin, Adebayo Oluwole, Adeyemi Olusola, Olutoyin Adeola Fashae, Lawrence Kosoko Jeje, and Adetoye Faniran. "Geology and Landscapes of the Southwestern Nigeria." In Landscapes and Landforms of Nigeria, 201–16. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-17972-3_14.

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Umeji, Obianuju P., and Kingsley K. Okeke. "Continental Intercalaire Deposits in Nigeria." In Geology and Natural Resources of Nigeria, 290–307. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-16.

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Yandoka, Babangida M. Sarki. "Source Rock of the Lower Cretaceous Petroleum System in Northern Benue Trough, Northeast Nigeria." In Geology and Natural Resources of Nigeria, 332–40. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-19.

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Dada, Silas S., Jimoh Ajadi, Abdulrazaq A. Garba, Ifeanyi A. Oha, Naheem Banji Salawu, and Paulinus N. Nnabo. "Archean Zircon Xenocrysts and Timing of Gold Mineralization in Nigerian Schist Belts." In Geology and Natural Resources of Nigeria, 223–41. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-12.

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Orosun, Muyiwa Michael, Taiye Benjamin Ajibola, Habeeb O. Olawoyin, Moshood O. Adenekan, Naheem Banji Salawu, Fisayo Cornelius Akinyose, Charity Adaeze Onumejor, and Saidu A. Dawa. "Environmental Impact of Mining." In Geology and Natural Resources of Nigeria, 520–31. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-30.

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Dada, Silas S., Samuel B. Olobaniyi, Ifeanyi A. Oha, Nathaniel G. Goki, Naheem Banji Salawu, Chinedu U. Ibe, and Abdulrazaq A. Garba. "Crustal Evolution and the Nigerian Metallogenic Framework." In Geology and Natural Resources of Nigeria, 200–222. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-11.

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Olawoki, Olumuyiwa A. "Bida Basin." In Geology and Natural Resources of Nigeria, 359–73. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003454908-21.

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Conference papers on the topic "Geology, nigeria"

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Ekpoudom, O. J., C. Ukaonu, E. Egbele, and M. O. Onyekonwu. "Integration of Geology and Petrophysics for the Characterisation of a Sandstone Reservoir." In Nigeria Annual International Conference and Exhibition. Society of Petroleum Engineers, 2005. http://dx.doi.org/10.2118/98814-ms.

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Ofili, Sylvester, and Alvar Soesoo. "GEOLOGY AND GEOCHEMISTRY OF THE LOKPANTA FORMATION OIL SHALE, NIGERIA." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-389521.

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Ekhalialu, Ogie. "Integrated approach for reservoir Geology; case study of the Well Oscar, Niger Delta, Nigeria." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.14040.

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Ihebuzor, Valentine, Obinna Onyeneke, and Ogbonnaya Obasi. "Water Injection in Complex Geology: A Case Study of a Field in the Niger Delta." In SPE Nigeria Annual International Conference and Exhibition. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/203635-ms.

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Okechukwu, Sedoo, Adedoyin Orekoya, Precious Alamina, James Anyaehie, Adekoyejo Sonde, and Uchechukwu Ozoemene. "Uncertainty Management Using Multi-Scenario Modeling in a Partially Appraised Field." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/207196-ms.

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Abstract Considering the imminent end of the ‘easy oil’ era, the increasing demand for energy and the global push towards the energy transition, oil and gas companies are more than ever interested in sustainable ways to develop marginal and complex hydrocarbon fields economically, through the application of technology and maximization of data analysis. In small partially appraised fields where the cost of drilling an appraisal well could derail the project economics, it becomes necessary to sweat the limited data available for reservoir modelling. The uncertainty analysis must be robust enough to ensure that the adopted field development strategy would yield a positive net present value despite the wide uncertainties associated with the field. The conventional workflow for subsurface uncertainty modelling involves defining the uncertainty ranges of static and dynamic reservoir parameters based on a single reservoir model concept. This paper focuses on a marginal field case study where the multi scenario modelling approach was adopted. This approach considered alternate reservoir geologic concepts based on different interpretations of the reservoir architecture, taking full cognizance of the available data, reservoir uncertainties and regional geology knowledge. Field Alpha is located onshore of Niger Delta in Nigeria. The geologic setting consists mainly of multi-storey, complex channel-belt systems, incising through Shoreface deposits. The reservoir of interest is an elongated structure with only two well penetrations located at the opposite distal part of the structure. The key reservoir uncertainties are reservoir structure, architecture, connectivity, and property distribution. Two possible distinct architecture were interpreted based on regional correlation and seismic. This paper focuses on how the interpretations and other information informed a robust development strategy that yielded significant (30 %) reduction in development cost and positive net present value.
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Mkpasi, Ernest, Chee-Hui Sim, Olafioye Akinrinlola, Joseph Nwakwue, Nnamdi Chiegbu, and Clay Collins. "Optimization and Re-Development Initiatives for a Complex and Mature Asset – Ubit Field Examples." In Nigeria Annual International Conference and Exhibition. SPE, 2008. http://dx.doi.org/10.2118/119735-ms.

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Abstract The Ubit Field is the largest producing asset in the Nigerian National Petroleum Company (NNPC) – Mobil Producing Nigeria Unlimited (MPN) Joint Venture. The field has been on production for over three decades, with a YE 2007 cumulative production of 615 MBO. The predominant depletion mechanism has been gas-cap expansion, resulting in 25% decline in the original reservoir pressure of 2464 psi. Since discovery and first development, prudent Reservoir Management practices have been used to maximize resources while managing the challenges of this field. The challenges include complex geology; drainage of a thin oil column; well performance issues related to declining reservoir pressure and the absence of pressure maintenance and artificial lift. This paper reviews initiatives that have been adopted to optimize short to medium term production, and modeling efforts needed to underpin the longer term redevelopment programs aimed at boosting production and achieving world class recovery factor. Optimization efforts include: GOR/voidage management, workovers, slot additions for near-term drilling, wellbore cleanouts/stimulation, contact monitoring, swabbing, well/choke optimization, gas lift, improved completion practices / optimized horizontal well placement. These initiatives have mitigated base oil rate decline and resulted in reduced reservoir pressure decline. Other benefits include improved initial well rates at lower drawdown and higher expected per-well recoveries.
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Kelechi, Faith M., Kinsley K. Okeke, and Ngozi Ulasi. "Geology and paleo-depositional environment of Leru and its environs, southern–eastern, Nigeria." In International Meeting for Applied Geoscience & Energy. Society of Exploration Geophysicists and American Association of Petroleum Geologists, 2023. http://dx.doi.org/10.1190/image2023-3908940.1.

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Rotimi, Oluwatosin John, Ayodeji Michael Akande, Betty Ihekona, Oseremen Iyamah, Somto Chukwuka, Yao Liang, Wang Zhenli, and Oluwatoyin Ologe. "Comparative Study of Predictive Models for Permeability from Vertical wells using Sequential Gaussian Simulation and Artificial Neural Networks." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/211987-ms.

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Abstract This study attempts to estimate permeability from well logs data and also predict values from existing rock sections to points that are missing using Artificial Neural Network (ANN) and Sequential Gaussian Simulation (SGS). Potentially, exploration data is prone to trends that are initiated by the sedimentation process, but a detrending method using Semi-variogram (vertical) algorithm was applied to remove this from the interpreted wells which are all vertical. Permeability modeled for ANN gave an estimated root mean square error (RMSE) of 0.0449, while SGS gave RMSE of 0.1789, both giving a ‘K’ range of 100 – 1000 mD. Although the spatial geology of the area was relegated and not considered, making a spatial prediction influenced from the temporal reference point un-assessable. However, the independent prediction on the overall result shows a better prediction from the ANN, perhaps due to the optimization algorithm used.
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Onyeji, J. A., B. O. Taiwo, Clement Chukwuka, Adaeze Obi-Chidi, Olufisayo Fagbowore, and Olugbenga Abolarin. "Managing Uncertainties in Wellbore Placement while Drilling Complex Reservoir: Case Study- Onshore, Niger Delta." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/211947-ms.

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Abstract The uncertainties associated with wellbore placement especially in terms of subsurface geology must be understood and minimized to maximize reserves for high returns. In the study area, the target reservoir is characterized as deep-seated hot sand body with intercalations of shale and siltstone. It is directly overlain by a thin bed of calcite. A closer look at the gamma ray log response of the sand puts a question to the reservoir presence, thus making landing point uncertain. Drilling to the target reservoir requires traversing through several depleted reservoirs sandwiched by shale formations that retain their original pressures. This narrows the safe mud weight window that could lead to wellbore instability issues. Other uncertainties include depth and fluid contacts. The objective of the well was to land and geosteer the wellbore in an optimal position within the oil leg. This paper reveals how the above-mentioned uncertainties were managed while drilling GX-04h infill well. The methodologies adopted include the use of reliable rotary steerable system, improved formation evaluation tools, real-time shale volume (Vshale) modeling, real-time pore pressure/ fracture gradient/ shear collapse pressure monitoring, real-time geological modeling, mud logging and effective communication protocols. Real-time Vshale computed and mudlog data helped in differentiating the top of deep-seat hot sand from the overlying shale. The at-bit resistivity measurement and neutron/density data aided in fluid typing/contacts. The approaches employed helped in proper landing of the well and successful drilling/ geosteering of 1000 feet lateral hole section within the oil leg of the target reservoir.
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Asedegbega, Jerome, Oladayo Ayinde, and Alexander Nwakanma. "Application of Machine Learniing For Reservoir Facies Classification in Port Field, Offshore Niger Delta." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/207163-ms.

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Abstract Several computer-aided techniques have been developed in recent past to improve interpretational accuracy of subsurface geology. This paradigm shift has provided tremendous success in variety of Machine Learning Application domains and help for better feasibility study in reservoir evaluation using multiple classification techniques. Facies classification is an essential subsurface exploration task as sedimentary facies reflect associated physical, chemical, and biological conditions that formation unit experienced during sedimentation activity. This study however, employed formation samples for facies classification using Machine Learning (ML) techniques and classified different facies from well logs in seven (7) wells of the PORT Field, Offshore Niger Delta. Six wells were concatenated during data preparation and trained using supervised ML algorithms before validating the models by blind testing on one well log to predict discrete facies groups. The analysis started with data preparation and examination where various features of the available well data were conditioned. For the model building and performance, support vector machine, random forest, decision tree, extra tree, neural network (multilayer preceptor), k-nearest neighbor and logistic regression model were built after dividing the data sets into training, test, and blind test well data. Results of metric score for the blind test well estimated for the various models using Jaccard index and F1-score indicated 0.73 and 0.82 for support vector machine, 0.38 and 0.54 for random forest, 0.78 and 0.83 for extra tree, 0.91 and 0.95 for k-nearest neighbor, 0.41 and 0.56 for decision tree, 0.63 and 0.74 for logistic regression, 0.55 and 0.68 for neural network, respectively. The efficiency of ML techniques for enhancing the prediction accuracy and decreasing the procedure time and their approach toward the data, makes it importantly desirable to recommend them in subsurface facies classification analysis.
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