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» 1.1 Background of the Study The marine propulsion system is the heart of ship; its reliability directly determines the safe navigation and operating costs of ship (Yan, 2011). The economy, space requirement, efficiency of propulsion and reliability are the most important parameters to the marine propulsion system (Conglin, 2013)....Continue Reading »
50 pages | 4,488 engagements |
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50 pages | 2,365 engagements |
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» ABSTRACT This study was carried out to investigate estimation of marine salts behaviour around the bridge structures. The development of chloride penetration models is essential for the assessment of the service life of concrete structures exposed to marine environment. Simple models are derived from Fick’s 2nd law of diffusion are at present the best way to predict chloride penetration in p...Continue Reading »
50 pages | 2,362 engagements |
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» ABSTRACT This study was on fuzzy modelling and control of marine diesel engine process. This strategy has been suggested for enhancing the regulator design that could represent an alternative to the standard embedded BOSCH controller, already implemented in the Engine Control Unit (ECU), without any change to the engine instrumentation. The marine system controller project requires the knowledge o...Continue Reading »
50 pages | 2,580 engagements |
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50 pages | 3,926 engagements |
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50 pages | 1,525 engagements |
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» ABSTRACT This work has examined the political crisis and its impact on national integration in Africa with a focus on Rwanda. To achieve the aim of this study, we stated the following questions i. Is there any relationship between colonial legacy and 1994 political conflict in Rwanda? ii. Did the Rwandan crisis redress the prevailing political domination by the Tutsi? iii. Has the United Nations p...Continue Reading »
76 pages | 848 engagements |
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» ABSTRACT An oil rim reservoir is a saturated reservoir with an oil column of limited thickness, less than 90 feet, overlain by a gas cap and underlain by an aquifer. Among the various challenges encountered in producing oil rim reservoirs, water and/or gas coning and breakthrough is the most prominent. Water and gas breakthrough occurs majorly due to heel toe effect and reservoir permeability vari...Continue Reading »
64 pages | 1,752 engagements |
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» ABSTRACT The technique used worldwide while drilling is known as overbalanced drilling. Which is defined as the drilling process where the hydrostatic pressure used exceeds the formation pressure. This is done with the main purpose of “killing” the well. However, there are numerous problems that accompany overbalanced drilling. Such problems are differential pipe sticking, loss of circ...Continue Reading »
59 pages | 1,923 engagements |
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» CHAPTER ONE INTRODUCTION 1.1 BACKGROUND OF STUDY Liquefied petroleum gas (LPG) detection is very important because gas is not only an explosive but also acts as asphyxiant. It can therefore cause serious harm to your health, your family health and homes. Liquefied petroleum gas detection was pioneered in the twentieth century by coal miners who used canary birds that would pass out if there were a...Continue Reading »
60 pages | 2,434 engagements |
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» CHAPTER ONE INTRODUCTION 1.0 Background of Study Oil and Gas is considered to be one of the major sources of energy in the world due to its high energy density, easy transportability, and relative abundance. It is a vital factor in every country’s economy. Almost all items that we buy, use, and consume are products of oil. The EIA (Energy Information Administration) stated that the world con...Continue Reading »
60 pages | 2,154 engagements |
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» ABSTRACT Production well optimization and modeling is very important in the efficient management of oil and gas production from a well. A major factor contributing to this process is the accurate estimations of the flowing bottom hole pressure at the formation as it helps in various petroleum production engineering analysis. Some of these analysis include studies on Vertical Lift Performance (VLP)...Continue Reading »
64 pages | 1,628 engagements |
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» CHAPTER ONE INTRODUCTION Natural gas is a combustible gaseous mixture of gaseous hydrocarbons, very light liquid hydrocarbons, free water, water vapour and other undesirable non – hydrocarbon gaseous and solid compounds found in conventional natural gas reservoirs as non associated gas (NAG), as associated gas (AG) or as gas condensates. Associated gas or gas wellhead gas is found in contact...Continue Reading »
60 pages | 2,079 engagements |
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» CHAPTER ONE 1.0 INTRODUCTION Drilling mud is a flowing fluid applied in rotary drilling for achieving single or multiple tasks during the procedure, and its typically consist of water/oil, clay, weighing compounds and few other chemical additives (American Institute of Petroleum, 1998). It most important physical characteristics are viscosity and water holding/retaining properties (Crowo, 1990). T...Continue Reading »
60 pages | 1,910 engagements |
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» CHAPTER ONEINTRODUCTION1.1 Background of the study. Before a well can produce oil or gas, a borehole is drilled from the surface to the oil and gas pool or reservoir rock. The borehole must be stabilized with casings cemented in place. A small diameter tubing string is centered in the wellbore and is sometimes held in place with packers. This tubing will carry the oil and gas from the reservoir to...Continue Reading »
60 pages | 1,050 engagements |
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» CHAPTER ONE INTRODUCTION 1.1 Background of the Study The need for resource rich Nigeria to assume control of the exploration, exploitation and production activities in the oil and gas sector and to harness the potentials of this most strategic industry in order to generate more value added, seems to be receiving much desired attention from all the stakeholders. This need is equally expressed in Ni...Continue Reading »
60 pages | 2,370 engagements |
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» CHAPTER ONE INTRODUCTION 1.1 Background of study The technological initiative of man towards the development of automobile and the discovery of petroleum triggered the building of petrol service stations at strategic locations to meet the demand of vehicle owners (Abdul et al., 2009). In recent times, there has been a sustained increase in the number of petrol stations established in different par...Continue Reading »
60 pages | 1,225 engagements |