The Warri South West is a region built up by the sedimentation of the Niger Delta and consists of the delta in various stages of development. Four major physiographic units are identifiable with in it. First, the freshwater swamp which is the most active area. It is located close to the River Niger, where annual flooding and deposition occurs up to 45 km from the river's course. Second, the man grove swamp area described as an intermediate delta stage. It is much lower and a great propor... read more

Well tests exist already for a long time. Since the first oil reservoir was discovered, oil companies have always been keen on estimating reservoir properties such as size. Present day well testing has gone beyond this and its usefulness cannot be overemphasized. This project work is concerned with the use of well testing in identifying well problems. The case under study is the UMU-N2 well of Umusadege field, Kwale. From analysis of the well test data, it was seen that the well had impairment w... read more

emperature. It is usually obtained from reservoir fluid analysis. Reservoir fluid sampling and analysis is often expensive and time consuming operation that cannot be carried out whenever the volumetric properties of reservoir fluids are needed. Hence, engineers resort to correlations developed for estimating fluid properties including the coefficient of isothermal oil compressibility. In this project, a new mathematical model for estimating the coefficient of isothermal oil compressibility base... read more

n Nigeria, it is common among motor mechanics to dispose waste oils into gutters, water drains and soil (Okonokhua et al., 2007). Waste oils is defined as used lubricating oils obtained after servicing and subsequently draining from automobile and generator engines. Spent oils contain high percentage of aromatic and aliphatic hydrocarbons, nitrogen and sulphur compounds and metals (magnesium, calcium, zinc, lead) than fresh oils, these metals are introduced into the oil as a result of wear and ... read more

Every Natural gas well ceases producing as reservoir pressure depletes. The usual liquid presence in the reservoir can cause further problems by accumulating in the wellbore and reducing production even more. There are a number of options in well completion to prevent liquid loading even before it becomes a problem. Tubing size and perforation interval optimization are the two most common methods. Although completion optimization will prevent liquid accumulation in the wellbore for a certain tim... read more

he world is in a state of increasing energy demand accompanied by decreasing availability of conventional energy sources, the bulk of these energy sources being fossil fuel. The cost of fossil fuel, inclusive of cost of procurement, processing and utilization when considered alongside the deficient power generation from this energy source especially in developing countries is of exorbitant nature . Fossil fuel is in a state of decreasing availability. This unfavorable situation when considered w... read more

espite best of efforts made to avoid problems, numerous challenges still plaque product distribution and marketing such as transportation difficulties in moving products safely and quickly to point of need occasioned by deplorable road conditions and lack of railway or cargo movement systems, unending electricity failures, lack of adequate storage facility with very low and poor refining capacity of refineries,finance inadequacy and improper funding, poor distribution channels etc. Recently, the... read more

A poor description of the reservoir characteristics usually poses a unique problem in exploration and production there by leading to poor development and management of a reservoir field to yield optimum profit required. An accurate description is thus a vital key to an improved field development planning and management. This study illustrates how an integration of empirically determine oil effective permeability data was correlated as a function of average reservoir pressure. This is to pr... read more

t is important to accurately predict the pressure drop accross a production system. This has been a difficult task in the oil and gas industry as the production system in real life is not homogenous (single phase) as assumed in most theories. The reason for this is that the two-phase flow is complex and difficult to analyze. Ideally, gas moves at a much higher velocity than the liquid. As a result, the down hole flowing pressure of the liquid-gas mixture is greater than the corresponding pressur... read more

Definition of terms Local Content:Is the development of local skills, oil and gas technology transfer, and use of local manpower and local manufacturing. For a more practical definition, one could say that local content is building a workforce that is skilled and building a competitive supplier base (Oil and Gas, 2010). Oil and Gas industry:A company that participates in every aspect of the oil or gasbusiness, which includes the discovering, obtaining, producing, refining, and distributing... read more

ifferential pipe sticking, loss of circulation, formation damage and other problems. A relatively new technique was introduced, known as underbalanced drilling, where the well is being drilled with a hydrostatic pressure less than that of the formation. Correct and proper execution of such technique eliminates problems associated with overbalanced drilling. More precisely, underbalanced drilling solves the issues of formation damage, differential pressure sticking and loss of circulation. On the... read more

The method to be adopted for this project is the use of sieve analysis and sucier correlation to determine the gravel pack size to be used for OBEN WELL 13 with formation sands gotten from the case study as mentioned above and useful information gotten from the internet, textbooks, petroleum journals. This method simply involves collecting core samples and running them through different sieves with different opening sizes, usually sieves with larger openings at the top and sieves of smaller ... read more

n oil or gas reservoir is discovered and assessed, production engineers begin the task of maximizing the amount of oil or gas that can ultimately be recovered from it. Some reservoir rocks may allow the oil and gas to move freely, making it easier to recover. Other reservoirs do not part with the oil and gas easily and require special technique to move the oil or gas from the pore spaces in the reservoir rock to a producing well. Even with today’s technology, in some reservoirs more than two-t... read more

efoamers used for this experiment were improvised with solvents and silicone. Silicone was mixed with`each of the solvents in different proportions. During the experiment, physical properties of the components and defoamers were determined with measuring instruments and visual examinations. Different parameters were used to rate the defoamer’s performance. Charts in which the parameters were used to compare the defoamers were depicted. From the figures(charts) shown, the defoamer which... read more

Defoamers used for this experiment were improvised with solvents and silicone. Silicone was mixed with`each of the solvents in different proportions. During the experiment, physical properties of the components and defoamers were determined with measuring instruments and visual examinations. Different parameters were used to rate the defoamer’s performance. Charts in which the parameters were used to compare the defoamers were depicted. From the figures(charts) shown, the defoamer whic... read more

btained from the well test data. Hence, the importance of analysis. There are various methods used to analyze well test data such as manual plotting, excel analysis and software analysis. In this study, a build-up test data was obtain from an XYZ field for two dual string oil producing wells (4 wells) and was analyzed using a tool called Saphir. The result from tool showed the properties of the reservoir required for characterization i.e. pressure, permeability and boundary conditions. It was ... read more

This project propose a key measure to prevent indiscriminate disposal of these principal wastes and absorption of crude oil in water, apart from punitive enforcement of legislature. This is to develop technological solutions by providing alternative use for these waste materials which will place a value on them. Identifying the potential use of waste to create job and inadvertently help in shaping public attitude towards its disposal and create job in the long term. Saw dust wastes are n... read more

ogram. A high pH is desirable to suppress corrosion rate, hydrogen embrittlement and the solubility of Ca2+ and Mg2+ which makes up clay. In addition, the high pH is a favorable environment for many of the organic viscosity control additives. For years this additives use to help maintain this property are imported and this contribute to high cost of drilling and which adversely affect the economy. In order to minimize this cost and maximize profit ,the locally made additives is been investigate... read more