Series-1 (Mar. – Apr. 2020)Mar. – Apr. 2020 Issue Statistics
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| Paper Type | : | Research Paper |
| Title | : | Density Modelling from Well Analysis of Fields [Sand API<75 and Shale API>75], Niger Delta Basin |
| Country | : | Nigeria |
| Authors | : | Atat, J. G. || Horsfall, O. I. || Akankpo, A. O. |
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: | 10.9790/0990-0802010106  |
Abstract: Modelling density-velocity relation for Niger Delta basin is very necessary in geological analyses involving rock parameters as density values overlap for sands and shales. Well-Log data were acquired for three wells in a field in the Niger Delta for analysis leading to density modelling. By means of Hampson Russell Software, Gardner's and Lindseth's relations were localized,altered and Atat et al., 2020 constants considered for sand and shale lithologies which helps in the model success. Harmonizing Gardner with those fromLindseth approaches, we obtained the mean; the final models are 𝜌=0.115𝑉𝑝0.27−5439𝑉𝑝−1+1.5625 and 𝜌=0.06𝑉𝑠0.24−2412𝑉𝑠−1 +1.4706 for sandstones lithology; 𝜌=0.26𝑉𝑝0.45−2278.5𝑉𝑝−1 +1.42855 and 𝜌=0.115𝑉𝑠0.30−11971.5𝑉𝑠−1+1.42855for shale lithology. With these models, new idea is formulated which will add to universal knowledge. Density information is possible in the absence of density log for accurate characterization of reservoir.
[1]. Atat, J. G., Uko, E. D., Tamunobereton-ari, I. &Eze, C. L. (2020).The Constants of Density-Velocity Relation for Density Estimationin Tau Field, Niger Delta Basin. IOSR Journal of Applied Physics, 12(1): 19 – 26.
[2]. Atat, J. G., Akpabio, G. T., George, N. J. &Umoren, E. B. (2012). Geophysical Assessment of Elastic Constants of Top Soil using Seismic Refraction Compressional Velocities in the Eastern Niger Delta. International Journal of Modern Physics, 1(1), 7 – 19.[3]. Asquith, G. & Gibson, C. (1982).Basic Well Log Analysis for Geologists. Tulsa: The American Association of Petroleum Geologists.
[4]. Berry, J. S. & Houston, S. K. (1995).Mathematical Modelling. London: Edward Arnold.
[5]. Bigelow, E. (1992). Introduction to Wireline Log Analysis. Houston: Western Atlas.
[6]. Blum, W. (2002). ICMI Study 14: Applications and Modelling in Mathematics Education Discussion Document. Educational Studies in Mathematics, 51(1-2): 149 – 171.
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| Paper Type | : | Research Paper |
| Title | : | Contribution Of Landsat 7 Etm + Satellite Images And Electrical Methods To The Structural Mapping Of The Aquifer System Of Agnibilekrou Department (East Of Cote D'ivoire) |
| Country | : | Côte d'Ivoire |
| Authors | : | Tani K. F || Kouakou E.G || Adingra M.P.K || Yao N.E || Kouamé L. N |
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: | 10.9790/0990-0802010720 |
Abstract: This study aims to improve knowledge of fractured aquifers in the bedrock formations in the Agnibilékrou department (East Côte d'Ivoire). Its main objective is to map the network of fractures in crystalline and metamorphic rocks using an approach integrating remote sensing and geophysics. The processing of Landsat 7 ETM + satellite images made it possible to highlight the lineaments network. The rosettes produced show five (5) predominant directional classes of lineaments which are in order of abundance NW-SE (N120-N150), NS (N0-N10), NE-SW (N40-N60), NNW-SSE (N150 -N180) and NNE-SSW (N10-N40). These directions were confirmed.....
Key Word:Landsat 7 ETM + images; electrical methods; fractures; aquifer; Agnibilékrou
[1]. BIÉMI J. (1992). Contribution à l'étude géologique, hydrogéologique et par télédétection des bassins versants sub-sahéliens du socle précambrien d'Afrique de l'Ouest: hydrostructurale, hydrodynamique, hydrochimie et isotopie des aquifères discontinus de sillons et aires granitiques de la haute Marahoué (Côte d'Ivoire). Thèse de Doctorat d'Etat ès Sciences, Naturelles. Université de Cocody. Abidjan (Côte d'Ivoire). 493 p.
[2]. LASM T., (2000). Hydrogéologie des réservoirs de socle: Analyses statistique et géostatistique de la fracturation et des propriétés hydrodynamiques. Application à la région des montagnes de Côte d'Ivoire (domaine archéen). Thèse de Doctorat unique, Faculté des Sciences Fondamentales et Appliquées, Université de Poitiers, 274p.
[3]. JOURDA J.P.R. (2005). Méthodologie d'application des techniques de télédétection et des systèmes d'information géographique à l'étude des aquifères fissurés d'Afrique de l'Ouest. Concept de l'hydrotechnique spatiale: cas des zones tests de la Côte d'Ivoire. Thèse de Doctorat d'Etat ès Sciences Naturelles. Université de Cocody (Abidjan, Côte d'Ivoire). 403 p.
[4]. YOUAN TA M. (2008). Contribution de la télédétection et des systèmes d'informations géographiques à la prospection hydrogéologique du socle précambrien d'Afrique de l'Ouest: cas de la région de Bondoukou (Nord-Est de la Côte d'Ivoire). Thèse Unique. Université de Cocody. Abidjan (Côte d'Ivoire). 237 p.
[5]. SAVANE I. (1997). Contribution à l'étude géologique et hydrogéologique des aquifères discontinus du socle cristallin d'Odienné (Nord-Ouest de la Côte d'Ivoire). Apports de la télédétection et d'un Système d'Information Hydrogéologique à Référence Spatiale (S.I.H.R.S.). Thèse de Doctorat d'État ès Sciences naturelles, Université d'Abidjan, 386 p
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| Paper Type | : | Research Paper |
| Title | : | Implications of Sequence Stratigraphy for Hydrocarbon Prospectivity of the Late Miocene Shelf Edge Delta Play Onshore Niger Delta |
| Country | : | Nigeria |
| Authors | : | Onyekachi Noble Ibezim || Austin Nnaemeka Okoli || Derrick Oyinebielador Odondiri || Benedict Aduomahor |
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: | 10.9790/0990-0802012144 |
Abstract: The Niger delta has been through the first phase of exploration success with numerous discoveries made in shallower depths less than 12000ft. With a declining resource base from earlier discoveries, this study has shown that significant gas potential ~1TCF volume exists further down depositional dip confined in shelf edge deltaic systems. Such plays have been recorded in several passive margin basins to hold an enormous hydrocarbon resource base. An integrated analysis from 565km2 3D seismic data, log motifs, bio-stratigraphic and sedimentology information from selected 13 wells was used in developing a stratigraphic framework and to delineate depositional sequences for the Late Miocene Age deltaic system Onshore Coastal Swamp Depobelt Niger-Delta. Understanding the origin, position.........
Key Word: Shelf edge deltas; Wheelers Model; depositional sequences; clinoforms; lowstand wedge; highstand
[1]. Bilotti, F., Shaw, J.H., 2005. Deep-water Niger Delta fold and thrust belt modelled as a critical-taper wedge: theinfluence of elevated basal fluid pressure on structural styles. American Association of Petroleum Geologists Bulletin 89 (11), 1475–1491
[2]. Burgess, P.M., Steel, R.J., 2008. Stratigraphic forward modelling of delta auto-retreat and shelf width:implications for controls on shelf width and timing of formation of shelf-edge deltas. In: Hampson, G.J., Steel, R.J., Burgess, P.M., Dalrymple, R.W. (Eds.), Recent Advances in Models of Siliciclastic Shallow-Marine Stratigraphy. SEPM Special Publication 90, pp. 35–45.
[3]. Cohen, H.A, McClay, K., 1996. Sedimentation and Shale tectonics of the north-western Niger Delta front.Marine and Petroleum Geology 13, 313-328
[4]. Deptuck, M.E., Sylvester, Z., Pirmez, C., O'Byrne, C., 2007. Migration–aggradation history and 3-D seismicgeomorphology of submarine channels in the Pleistocene Benin-major Canyon, western Niger Delta slope. Marine and Petroleum Geology 24, 406–433
[5]. Doust, H., Omatsola, E., 1989. Niger Delta. In: Edwards, J.D., Santogrossi, P.A. (Eds.), Divergent/passive margins, Amer. Assoc. Petrol. Geol. Mem., 48, pp. 201–238.
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| Paper Type | : | Research Paper |
| Title | : | Watersheds Morphometric Analysis of Kasari River Basin in Kolhapur District, Maharashtra, India |
| Country | : | India |
| Authors | : | Patil Yogita || Patil Abhijeet || Patode H. S. || Gurav Chandrakant |
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: | 10.9790/0990-0802014553 |
Abstract: Morphometric analysis of Kasari river and its 20 watersheds is carried out using Geographical Information System (GIS) techniques to study the behavior of the drainage and it topographical relation. The GIS techniques were used to study the linear, areal and relief aspects of the basin and its watersheds. Geologically, entire study area is covered by Deccan Volcanic Basaltic Province (DVBP) of late Cretaceous to early Eocene age. Laterite rocks are also occurs on the top of the hills. It belongs to Pleistocene period. Average Dd, and Fs values of the watersheds are high indicating high relief and low permeable sub-surface material. The average Rb values of most of the watersheds is less than 5 is point towards area is mountainous or highly dissected drainage basins. The average Rt values of the watersheds are increases with the basin area and stream ordering is increases. The Re, Rf and Rc values shows most of the watersheds are elongated in shape. Relief values show that area is steep sloping.
Key Word: Watershed, GIS, morphometry, Kasari.
[1]. Athavale H. and Natu S. R. (2005). Report on transvers mapping in toposheet 47L/1, 2 and 3 in Sangali and Kolhapur District, Maharashtra. 050/MAP/CR/MH/2004/2009
[2]. Babar Md and Gurav Chandrakant (2014). Influence of Geological and Geomorphological Characteristics on Groundwater Potential in Lendi River Sub-Basin of Manjra River, Maharashtra, India. 4th International conference on Hydrology and Watershed Management (ICHWAM-2014) pp.103-109.
[3]. Babar Md and Kaplay R. D. (1999). Geomorphometric analysis of Purna River basin Parbhani District (Maharashtra). Indian Journal of Geomorphology 3 (1) 29-39.
[4]. Babar Md and Shah II (2011). Remote Sensing and GIS Applications for Groundwater Potential Zones in Tawarja River Sub-Basin, Latur District, Maharashtra, India. International Journal of Earth Sciences and Engineering (IJEE) 4 (3) 71-79.
[5]. Bull, W.B. and McFadden, L. D. (1977). Tectonic Geomorphology north and south of Garlock Fault, California, in arid regions. Proc. Eighth Annual Geomorphological Symp., State University, New York, Binghamton, pp. 115-138.
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| Paper Type | : | Research Paper |
| Title | : | Selection of Ten Geomagnetially Quietest Days Using Kp Index |
| Country | : | Nigeria |
| Authors | : | C. G. Njumogu || T. N. Obiekezie |
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: | 10.9790/0990-0802015457 |
Abstract: The global Kp index is obtained as the mean value of the disturbance levels in the two horizontal field components, observed at 13 selected, subauroral stations. The name Kp originates from "planetarische Kennziffer" (planetary index). The quietest days of each month are deduced from the Kp indices on the basis of three criteria for each day:the sum of the eight Kp values, the sum of squares of the eight Kp values and the maximum of the eight Kp values. According to each of these criteria, a relative order number is assigned to each day of the month, the three order numbers are averaged and the days with the lowest and the highest mean order numbers are selected as the ten quietest and the five most disturbed days respectively. The selected ten quietest days are seen to be consonance with the international quiet days.
Keywords; Geomagnetially, Quietest, Subauroral, Stations and Index.
[1]. Bartels, J. (1949) The standardized index, Ks, and the planetary index, Kp, IATME Bulletin 12b, 97.
[2]. Bartels J, and J. Veldkamp (1954) International data on magnetic disturbances, first quarter, 1954. J. Geophys. Res., 59, 3, 423-427. [3]. Mayaud,P.N., Derivation, meaning and use of geomagnetic indices, Geophys. Monogr., 22, AGU,Washington,1980
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| Paper Type | : | Research Paper |
| Title | : | Euler Deconvolution and Source Parameter Imaging of Aeromagnetic Data to Delineate Sedimentary Thicknessover Lower Part of Sokoto Basin, Northwestern Nigeria |
| Country | : | Nigeria |
| Authors | : | Lawali, S || Salako, K.A. || Bonde, D.S. |
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: | 10.9790/0990-0802015864 |
Abstract: Quantitative interpretation of aeromagnetic data was carried out over the lower part of Sokoto basin northwestern Nigeria in order to determine the sedimentary thickness for possible hydrocarbon potential. The study area lies between latitude 10.5oN to 11.5oN and longitude 04oE to 05oE with an estimated total area of 12,100km2. Four (4) high resolution aeromagnetic data were acquired from the Nigerian Geological Survey Agency (NGSA) and were processed in to total magnetic intensity (TMI) map using Oasis Montaj. The composite total magnetic intensity (CTMI) map revealed heterogeneity in the magnetic signature, ranging from -64.1nT to 123.6nT. Regional-residual separation was performed on the composite total magnetic intensity map using polynomial fitting. The residual map was subjected to Euler deconvolution and source parameter imaging. The result obtained from the.......
Keywords-Aeromagnetic,Anomaly, Euler deconvolution, Hydrocarbon, Sedimentary thickness,
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[2]. Adewumi, T. and Salako, K.A. (2017). Delineation of Mineral Potential Zones using High Resolution Aeromagnetic Data over part of Nasarawa State, North Central, Nigeria. Egyptian Journal of Petroleum.https://doi.org/10.1016/j.ejpe.11.002. Retrieved December 20, 2017 from www.sciencedirect.com
[3]. Ansari, A.H. and Alamder, K. (2009). Reduction to the Pole of Magnetic Anomalies using Analytic Signal. In Thabisani, et al (2015). Analytic Signal and Euler Depth Interpretation of Magnetic Anomalies: Applicability to the Beatrice Greenstone Belt. Journal of Geography and Geology 7(2). Retrieved December 20, 2017 from www.sciencedirect.com
[4]. .Garba, (1994). Tourmalinization related to Late‐Proterozoic‐Early Paleozoic Lode Gold Mineralization in Birnin Yauri Area, Nigeria, Mineralium Deposita 31(1994):201-209. Retrieved December 20, 2017 from www.sciencedirect.com
[5]. Hsu, S.K, Sibuet, J.C, and Shyu, C.T (1996). High-resolution detection of geologic boundaries from potential- field anomalies: An enhanced analytic Signal technique. Geophysics 61 (2): 373-386. Retrieved December 20, 2017 from www.sciencedirect.com