Series-1 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.
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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
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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
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