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FUTOSpace is the Federal University of Technology, Owerri open-access repository that collects, preserves and make available in digital format the intellectual output of the university's community:
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- This Community features the proceedings of conferences, seminars and workshops hosted by the FUTO or other bodies but had staff from FUTO attending and making presentations
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- Published Research Outputs
- Theses and dissertations by students and staff from all the Schools in FUTO
Recent Submissions
Formation evaluation and reservoir properties estimation of hydrocarbon zones in 'AZOH' field onshore Niger Delta
(Federal University of Technology, Owerri, 2023-09) Ozah, Edward
Formation evaluation of three wells in the "Azoh‘ field, Northern Delta Depobelt, was carried out in this study in order to identify potential prospective pay zones, their potential hydrocarbon fluid content and reservoir quality. An integrated methodology involving the use of well logs, mud logs and core data (sidewall core descriptions and core photos) was adopted to delineate three reservoir sand units, designated D2000, E3100 and F1000 reservoir sands respectively. Reservoir properties including water saturation, effective porosity and net reservoir thickness were computed and used to estimate the volume of in-place hydrocarbons within these reservoirs. In addition, the depositional environments were characterized using gamma ray log shape. Results of the petrophysical analysis revealed that these reservoirs are high quality sands, with estimated average effective porosity values
of 20% for D2000 sand, 30% for E3100 sand and 25% for F1000 sand, respectively, which are within the range for commercial accommodation of hydrocarbon. Generally, the petrophysical characteristics of the reservoirs are good especially at the areas of interest (hydrocarbon zones). This can be attributed to their depositional environment which ranges from distributary mouth bars to shoreface deposits. The volume of shale values for some of the reservoirs are within the limits that could not affect the water saturation, while the water saturation in some zones is appreciably low (1%- 21%), indicating that hydrocarbon production from these reservoirs are likely to be water free. D2000 sand and F1000 sand tested oil in the three wells, while E3100 sand tested gas in the wells. Each of the reservoir sand have an average estimated permeability value of 16.92mD for D2000 sand, 47.80mD for E3100 sand and 28.05mD for F1000 sand respectively, indicating that the reservoirs have good interconnected pores. Estimates of hydrocarbon volumes showed that D2000 and F1000 sands both have 2.9 and 2.4 billion barrels of recoverable oil respectively, while E3100 have 3.1 trillion cubic feet of recoverable gas. These results on the whole suggest that the reservoir sand units of ‗Azoh‘ Field contain significant accumulations of hydrocarbon.
Characterization and antimicrobial evaluation of quaternary ammonium compounds synthesized from Canola and coconut oils
(Federal University of Technology, Owerri, 2021-09) Amaefule, Onyinyechi
Quaternary ammonium compounds were synthesized from Canola oil (Brassica, napus) and Coconut oil (Cocos nucifera) extracts by reacting the oils with N,N diethylethylenediamine in the presence of potassium tertiary butoxide as catalyst. Fourier Transform Infrared (FTIR) spectrometric analysis of the starting materials, the intermediates and the final products were carried out and the results showed a disappearance of the carbonyl (C=O) stretch of the oil esters at 1744 cm-1and appearance of an N-H band for an amide at 3433 cm-1. Other functional groups such as C=C and C-H stretch of an aromatic compound and C=O stretch of an amide were also observed. Antimicrobial activity of the synthesized quaternary
ammonium compounds showed excellent anti-bacterial activity with an inhibition diameter of 22 mm and 28 mm for E.coli by QAC from Cocos nucifera and Brassica napus oils respectively as compared to a standard antibiotic (Ampicillin).
Complex Textile Design
(Federal University of Technology, Owerri, 2010) School of Engineering and Engineering Technology, Department of Polymer and Textile Engineering.
A comprehensive review on the feasibility and challenges of millimeter wave in emerging 5G mobile communication
(U. P., 2019) Agubor, Cosmas Kemdirim; Akwukwuegbu, Isdore; Olubiwe, Mathew; Nosiri, Chikezie Onyebuchi; Ehinomen, Atimati; Olukunle, Akande Akinyinka; Okozi, Samuel Okechukwu; Ezema, Longinus; Okeke, Benjamin Chukwujekwu
This article presents a comprehensive review on the feasibility and challenges of millimeter wave in emerging fifth generation (5G) mobile communication. 5G, a multigigabit wireless network is the next generation wireless communication network. The mmWave cellular system which operates in the 30-300 GHz band has been proposed for use as the propagation channel. Its large bandwidth potential makes it a candidate for the next-generation wireless communication system which is believed to support data rates of multiple Gb/s. High frequency bands such as mmWave have channel impairments. These impairments are challenges that are necessary to be properly understood. Employing mmWave as a propagation channel requires dealing with these challenges which this paper is aimed at reviewing. One aim of the work is to discuss these challenges in a more elaborate manner using simple mathematical equations and graphics to ensure clarity. To achieve this, current related works were studied. Challenges and solutions are identified and discussed. Suggested research directions for future work are also presented. One is developing suitable electronic such as fast analog-to-digital (ADC) and digital-to-analog (DAC) systems necessary for the transmitter/receiver (TX/RX) system.
Engineering Technology of Elastomers
(Federal University of Technology, Owerri, 2015-05-06) School of Engineering and Engineering Technology, Department of Polymer and Textile Engineering.