ABSTRACT Implantable Bio-Micro-Electro-Mechanical Systems (BioMEMS) represent a new class of devices that can provide localized cancer drug delivery by the combined effect of chemotherapy and hyperthermia which gives it an advantage over prior devices. The current work presents the results of a theoretical and experimental study of a novel implantable drug delivery device. Prototype Poly-di-methyl-siloxane (PDMS) packages with well-controlled micro-channels, and a drug storage compartments w...
ABSTRACT This study is on the determination of the Compressive Strength of Palm Kernel Shell Concrete. The effect of percentage replacements (0, 25, 50, 75 and 100%) of crushed granite with palm kernel shell on density and compressive strength of concrete is presented. Concrete cube specimens of mix 1:2:4 were prepared with water-cement ratio of 0.6. The cubes (150mm×150mm×150mm) were cured using water-submerged curing until testing ages of 7, 14, 21 and 28 days when their densities and c...
ABSTRACT A new method for analysing productivity index (PI) on vertical wells is the main objective of this study. Well performance is often measured in terms of the well’s productivity which is dependent on a number of factors such as the reservoir’s configuration, the type of completion, petrophysical and fluid properties, formation damage, etc. The effect of partial completion is the main focus of making the productivity index analysis since almost all vertical wells are partially com...
ABSTRACT Consumption of contaminated water may result in several water-borne diseases, including hepatitis, typhoid, cholera, dysentery and other diseases that cause diarrhoea. One of the ways this problem can be prevented is by the use of household water treatment and safe storage. As a result of this, the ceramic water filter, which is one of the effective water treatment techniques, was studied and evaluated to provide information that, will help improve their performance and promote thei...
ABSTRACT In this research, Social Network Web Application (SNWA) was developed and tailored for a specific use; community development in the Niger Delta region of Nigeria. In the SNWA development, preliminary context analysis was conducted to capture contextual information on community development challenges in the Niger Delta and the readiness of the target local community to adopt web-based solution to the identified challenges. Subsequently, User-Centered Requirement Engineering, User...
Abstract Design of a Robust Electronic Internal Temperature Controller for Petroleum Distillation is presented in this Thesis. During unstable weather conditions, there is a noticeable drop in the distillation internal column temperature. An extreme and frustrating case of this occurs during rainfall and at night when the fractional distillation column external temperature drops, greatly affecting the internal. Consequently, it becomes difficult to maintain a stable and optimum inte...
ABSTRACT Topsoil stripping, drilling and blasting extraction, waste rock dumping, loading, and unloading, crushing and screening, and materials transport are among other activities involved in iron ore mining. These activities produce fugitive dust that may contain heavy metals which deteriorate the quality of ambient air. They also cause noise and surface water pollution, not to mention their effects on the soil and vegetation. Corrosion is another issue observed in iron ore mining; corrode...
ABSTRACT Communication Protocols are the key tools for data transmission; most of them were defined for asynchronous data transport. Underpinning the Internet is the Internet Protocol (IP), which, has offered an ideal pathway for general Information Technology convergence with its capability of carrying large variety of signals (audio, control, voice, video, data, etc.). This thesis is on “the Design and Simulation of Audio Over IP (AoIP) frequency modulated broadcast studio system”. Us...
ABSTRACT From the inception of the oil and gas industry, water production has always been an aching problem for various operators. Throughout the productive life of a field, oil production is often accompanied with some amount of water production, which in most cases, is so significant and unwanted. Because of the great operating, environmental and economic challenges associated with excess water production, operators are in search for different methods and tools that could be used to identi...
ABSTRACT 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 corrosion inhibition using palm, jatropha and palm-jatropha extracts at concentrations of 100 ppm, 200 ppm, and 400 ppm to show the effect of blending on the inhibitive performance of plant extracts. An analysis of the extracts was carried out and weight losses as ...
ABSTRACT As reservoirs become more complex and drilling operations more expensive, the need to reduce both inefficiencies and costs for constructing and analyzing high quality static models is essential. The effective and efficient production of petroleum from a reservoir lies on the proper characterization of the reservoir. Once the static model resulting from reservoir characterization is satisfactory and heterogeneities taken care of, it is but evident that the uncertainties will be minimi...
ABSTRACT Successful oil and gas well drilling require hole stabilization. Barite comprised of barium sulphate is a common mineral chiefly used by oil and gas companies in their drilling operations. Barite is used in the drilling fluids to maintain the pressure in the wellbore and prevent intrusion of unwanted fluids from the formation being drilled. Most African countries hold significant reserves of barite but a number of challenges have limited local production resulting in poor quality wh...
Abstract Solution gas drive reservoirs are characterized by rapid and continuous decline of reservoir pressure. This rapid and continuous decline of reservoir pressure causes direct decline of reservoir performance at early stages of the life of the reservoir. The principal source of energy which is gas liberation from the crude oil and the subsequent expansion of the solution gas as the reservoir pressure is reduced are inadequate to produce such reservoirs to their full capacities. Ultimat...
ABSTRACT Prodigiosin molecule, whose efficacy in the treatment of cancer has proven positive, has been studied using first-principles Density Functional Theory (DFT) methods as implemented in VASP - Vienna Ab initio Simulation Package. Initial structure of prodigiosin generated using ArgusLab 4.0.1 program was subjected to geometry optimization in the VASP program in order to determine the ground state structure. The optimized interatomic bond lengths and angles are comprehensively character...
ABSTRACT Well stimulation consists of several methods used for enhancing the natural producing ability of the reservoir when production rate declines. A detailed literature review of some of the well published stimulation models are discussed in this research. This discussion was preceded with an introduction to formation damage concepts and an overview of well stimulation methods. Production decline curve analysis is combined with economic discounting concepts to develop a model that can be...