African University of Science and Technology: Recent submissions
Now showing items 41-60 of 4624
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Environmental Impact of Oil and Gas Exploration and Production on the Socio-Economic Life of Niger Delta
(2019-06-23)Niger Delta generates higher revenues for Nigeria through its abundant oil and gas resources. The region over the years has been faced with environmental challenges resulting from oil and gas operations. This study is aimed ...
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Effects of Fiscal Systems on Reserves Recognition and Investment Metrics
(2019-06-23)Petroleum reserves are affected either negatively or positively by the type of fiscal system and elements governing them. Governments, investors, policymakers, and other stakeholders have from the past been a victim of the ...
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In Situ CO 2 EOR Mechanism and CO 2 -OIL Phase Behavior
(2019-06-23)Numerical reservoir simulators are employed to obtain meaningful and reliable solutions for an actual case due to extreme complexity of the reservoirs systems. Wilcox formation is a reservoir in the gulf of Mexico with ...
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Diagnosis of Water Production using Artificial Neural Network Models
(2017-12-16)A data-driven approach to solving the problem of excess water production was the focus of this study. In this research, several reservoir models were simulated for 26 years, and data obtained after simulation was used to ...
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Evaluation of Optimal Designs for Infill Well Drilling for Water Flood Systems
(2017-12-16)One of the ways of maximizing recovery from a reservoir is by drilling infill wells. Infill well placement is challenging because many well scenarios must be evaluated when undertaking the optimization program and very ...
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Substitutional and vacancy defects in two-dimensional AlSb: A first principle approach
(2019-07-22)AlSb is a semiconductor material which exist in 3D as well as 2D regimes. AlSb have a high electron mobility which is useful for application in high speed electronic devices. AlSb has potential applications in radiation ...
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Luation of Recovery Performance of Gas-Condensate Reservoir using Limited Compositional Simulator
(2018-03-23)In the past years, several researches have been done on gas-condensate reservoir recovery performance using fully compositional simulators. Fully compositional simulators are more expensive, time consuming and have complex ...
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Determining Individual Characteristics of a Two-Layered Reservoir using the Tds Technique
(2017-12-12)The first part of this study discussed in details the two major model that was developed for the study of a multilayer reservoir system. They are the Dual permeability model proposed by Bourdet and the semipermeability ...
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Numerical Simulation of Enhanced Oil Recovery using a Gum Arabic Polymer
(2017-11-23)Oil reserves are now located in hard-to-reach locations. This, combined with low oil prices, makes drilling for new reserves very expensive and risky. Enhanced oil recovery, which increases the amount of oil that can be ...
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Sour Gas Injection to Enhance Oil Recovery
(2017-02-13)Proper handling of sour gas produced is crucial to the development of sour reservoirs. Over years of research and practice, many methods of sour gas processing have been developed from the solid storage of sulfur to ...
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Effects of Near Wellbore and Reservoir Fluid Compositional Changes on Condensate Banking
(2017-12-12)Gas condensate reservoirs are initially discovered as single-phase gas reservoirs. As the reservoir is produced below the fluid dew-point pressure, an increase in condensate saturation in the near wellbore region occur ...
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Effects of Prodigiosin on Breast Cancer Cell Viability
(2016-07-10)The Luteinizing Hormone-releasing Hormone (LHRH); also known as a Gonadotropin-Releasing Hormone can be utilized for targeted therapy with cytotoxic analogs, in which prodigiosin is linked to the [D-Lys6] LHRH. Our studies ...
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Carbon Soot as a Potential and Sustainable Source of Porous Nanostructure for Energy Storage
(2017-11-13)There is a need for efficient energy storage to meet the world’s continuous demand for energy. The electrical energy storage devices available are conventional capacitors, electrochemical supercapacitors, batteries and ...
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Technical Assessment of Mining Site and Barite Quality in Nigeria
(2017-12-16)Barite is an exceptional non-metallic mineral composed of barium sulphate and it is used mainly by the oil and gas industry as drilling mud in deep drilling, where high pressure is encountered. The specific gravity of ...
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Morphology Analysis of Lead Iodide- and Lead Acetate-Based Perovskite Layers for Solar Cell Application
(2018-12-09)Organolead trihalide perovskite solar cells have shown success as light absorbers in photovoltaic cells due to their efficiency increasing from 3.5% to over 20% within only five years. However, pinhole formation and ...
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Utilisation of Rice Husk Ash (RHA) in the Production of Magnesium Oxide (MgO)-BASED Cement
(2017-10-23)The use of Magnesium oxide (MgO) cement as a full replacement and viable alternative for Ordinary Portland Cement was studied. Rice husk, an agricultural waste, was calcined and synthesised to be used as a source of silica ...
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Characterization and Stabilization of Laterite for Sustainable Construction Applications
(2017-12-12)Laterite is an eco-friendly construction material that has the ability of being re-cycled indefinitely. The research is aimed at achieving the effective utilization of laterite as a sustainable construction material by ...
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Fracture Toughness and Resistance-Curve Behaviour of Laminated Bamboo
(2017-12-12)In this study, the fracture toughness and resistance curve behaviour of laminated panels, produced from the tropical Nigerian bamboo species Bambusa vulgaris, were investigated to assess its potential for use as an alternative ...
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Sweet Corrosion Inhibition of Carbon Steel Using a Blend of Palm-Jatropha Leaf Extract in 3.5% Nacl Solution
(2017-12-12)This research focused on studying the suitability of a blend of plant extracts for sweet corrosion inhibition on carbon steel in 3.5% NaCl solution. A comparative study was carried out to investigate the efficacy of sweet ...
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Investigation of Stress Corrosion Cracking of Storage Tanks used to Store Methanol for Gas Hydrate Inhibition
(2018-12-07)Methanol is normally used in the oil and gas industries for inhibiting gas hydrate. Before use, the methanol is normally stored in tanks often made of carbon steels and stainless steels, and these tanks are prone to corrosion ...