Research Papers/Topics in Petroleum Engineering

Structural Framework And Its Effects On Traps Formation In The South-Eastern Part Of Rukwa Basin

ABSTRACT This work presents the first detailed, structural framework, characteristic and types of traps which are found in the South-Eastern part Rukwa basin, located in the Western Branch of the East African Rift System, South-Western Tanzania. The goal of this work is to examine the structural framework which control trapping characteristic of the Rukwa basin within the Karoo and Lower Lake Beds reservoir. 2D seismic datasets that were collected in 1983 by Amocco obtained from TPDC w...

A Simple Generalized Equation of State

Abstract A pressure perturbation technique based on a simple adaptation of the Weirtheim's first order thermodynamic perturbation theory has been developed and used to formulate a generalized equation of state. The practical equation formulated was applied to pure fluids, binary systems and real samples of Niger Delta Petroleum fluids. Tuning of data is not required. The results show more accurate predictions than the commonly used SRK and PR equations This work provides a theoretic...

New Referencing Technique for Reservoir Oil Viscosity Estimation

Abstract Reservoir oil viscosity is important in understanding reservoir flow behaviour, l facilities design and sizing and in the computation of recovery performance, well' productivity and lift requirements. Direct viscosity measurements are expensive or sometimes unavailable hence empirical correlations are often used for predictions. However, several published correlations are either too simplistic or complex for routine operational use and improved methods continue to receive a...

Prediction of Flowing Bottomhole Pressure In Gas-Condensate Wells

ABSTRACT Bottom-hole pressures in gas and condensate wells are frequently measured at a great cost and with operational challenges. On the other hand, most analytical estimation procedures either use trial and error or neglect liquid holdup in condensate wells. Using the mechanical energy balance approach, an approximate model was developed to estimate bottom-hole pressure from wellhead pressures in condensate wells without neglecting liquid holdup. The results show that treating gas...

Prediction of the Viscosity of a Water - Base Mud treated with Cassava Starch and Potash at varying Temperatures using Factorial Design

Abstract In order to monitor and control the properties of drilling fluids, measurements are routinely made at the surface. However. these surface measurements may not be representative of down-hole properties where the desired functions of hole cleaning and other related issues are critical to the success of the drilling operations. Consequently, it is important to make necessary adjustments of the fluid properties obtained at ambient conditions to give estimate of properties at high t...

A Study on the Efficiency of ZIF-8 Nano-Particles for Oil Spills Cleanup

This paper will aim at shedding light on the efficiency of zif-8 nano-particles. It will show that zif-8 can be a leading tool in water treatment having a large surface area, high adsorption capacity and thermal stability. Zif-8 was also used to enhance characteristics of several materials such as MF-ZIF-8 sponge composite to enhance hydrophobicity for the selective sorption of oil. Also, its treatment was studied on electrospun nylon 6,6 NFM to enhance oil spill adsorption and we compa...

Analysis of Water Cresting in HorizontaI Wells

INTRODUCTIONExcessive water production as result of coning and cresting has been a serious problem in the oil and gas industry. Coning or cresting are used to describe the mechanism underlying the upward movement of water and/or the downward movement of gas into the perforations of a producing well. Efforts have been directed at understanding the mechanism of water coning/cresting in vertical and horizontal wells. These efforts have led to the development of correlations for estimating c...

Investigate the Effect of Permeability on the Selection of Diverter in Limestone Matrix Acidizing

This paper will aim at investigating effect of permeability on selecting best diverter in carbonate matrix acidizing. Two types of diverters were used, 15% HCl Gelled Acid and Slickwater+15% HCl. Permeability varied from 50md, 100 and 300md. Results showed that 15% HCl Gelled Acid gave better results than VDA where it had lower skin value and better invasion depth.  

The Economics Of Crude Oil Stabilization

ABSTRACT Estimating the gas/VOC emissions from oil and gas producing equipments has been a goal which the industry and regulatory agencies have spent a great deal of study and effort to contend with. This research estimated the flashing losses of gas/VOC emission from conventional atmospheric storage tanks to the atmosphere using Vasquez-Beggs Equation (VBE). Using VBE confirmed observed losses experienced in the industry as is represented in a graph showing the losses. It went further t...

Structural And Sequence Stratigraphic Framework Of Lukuliro Area, Southernpart Of Rufiji Trough

ABSTRACT This study conducted within southern parts of Rufiji Trough include Lukuliro area which has been potential target for oil and gas exploration since 1980’s years. Within Rufiji trough, the discovery of Wingayongo seeps (onshore) and SongoSongo gas (offshore) attract attention on exploration activities within Rufiji trough. The previous works conducted within Lukuliro area failed to establish traps which are well demonstrated in this study. The structural and sequence stratigra...

Gold Recovery by Cyanide Leaching: A Case Study of Small Scale Miners in Tanzania

AbstractIn this study, sodium cyanide leaching technology has been used to recover gold from tailings that are used by Mawelo smallscale miners, located in Chunya district, Mbeya region, Tanzania. The sample collected was sent for analysis of mineralogicalcomposition and average particle size. The fractions retained on each sieve, which ranged 180 – 500 μm were used in theleaching experiments. The leaching was implemented using sodium cyanide with concentration in the range of 500 – 1200...

Performance Evaluation Of A Gas (Butane) Fired Oven

AbstractA gas-fired oven for commercial production of bread was designed andconstructed using locally available material, and was subjected to various'tests tocome out with its performance characteristics. Itsperformance was evaluatedand then compared withsrespect to the total time required to bake a specifiedmass of white flour dough using the gas oven with that used by clay wood firedoven for the same mass of white flour dough. .,The outcome of the test result indicated that the ni&ximum te...

Evaluation of True Government Take under Fixed and Sliding Royalty Scales in Nigerian Oil Industry

Abstract: Fiscal regimes are very important in the global Petroleum Exploration and Production (E&P)industry. They sharpen policies, management strategies and revenue (take) by governments whiledefining the attractiveness of the industry to investors. One of the major parameters in fiscal regimesis royalty oil, which could be fixed or adjustable on a sliding scale. Nigeria, which has used fixedroyalty scale since the first oil in 1958, is now proposing a change to the sliding royalty scale me...

A Correlation For Predicting The Viscosity Of Nigerian Crude Oils

AUST.RACTAn -elnpTricaZ'-eq"uarlon that could be used forpredicting the viscosity of Nigerian crudes ispresented in this paper.The correlation uses oil specific gravity as the maincorrelating parameter, and also incorporates theeffects of reservoir pressure, temperature and oilformation volume factor. 'i 'i _. .Dcua from well over 400 samples of Nigerian crudeswae used for developing the correlation, with mostsamples however, from reservoirs alar abovesaturation pressure. The results show how...

Carbontl V) oxide Capture anti Sequestration in Nigeria: Prospects and Challenges

AbstractThe capture and storage 0/ carbo II dioxide (eeS)produced durtng the combusuon of fossil fuels 110\1·offers one option/or attaming large scale reductions inthe enusstons of greenhouse gases and thus. promote aclean environment. It IS 1101l' becoming clear that eestechnologies could promote the use or consumption offossilfuels than otherwise previouslv thought.Tills paper presents an OI'er\,le\l" of the techniquesInvolved 111 the capture and sequestration ofcarbondioxideic'Oi). The op...


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