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CHAPTER ONE INTRODUCTION Many reservoirs are comprised of relatively young sediments, which are so poorly consolidated that sand will be produced along with the reservoir fluids unless the production rate is reduced significantly. Sand production leads to many numerous production…

APPLICATION OF INTELLIGENT WELL COMPLETION IN OPTIMIZING PRODUCTION FROM OIL RIM RESERVOIRS 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…

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,…

CHAPTER ONE INTRODUCTION 1.0 Background to 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…

DETERMINATION OF FLOWING BOTTOM HOLE PRESSURE FROM WELL HEAD DATA 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…

CHAPTER ONE INTRODUCTION 1.1  Background to study Nodal analysis also known as “system analysis” is a systematic procedure/approach applied to the enhancement or optimization of production of oil and gas wells by analyzing and evaluating the complete production system. Every…

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…

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…

GAS LIFT OPTIMIZATION OF OIL PRODUCING WELLS USING PROPER NODAL ANALYSIS CHAPTER ONE INTRODUCTION 1.1 Background to the study. Before a well can produce oil or gas, a borehole is drilled from the surface to the oil and gas pool…

THE LOCATIONAL IMPACT OF PETROL STATIONS IN UVWIE LOCAL GOVERNMENT AREA CHAPTER ONE INTRODUCTION   1.1  Background to study The technological initiative of man towards the development of automobile and the discovery of petroleum triggered the building of petrol service…

ABSTRACT Fluid flow in a petroleum reservoir is a very complex phenomenon and it is impossible to develop analytical solutions for practical issues due to the complex behaviour of multi-phase flow. Reservoir simulation study the behaviour of fluid flow and…

NATURAL FLOW AND TUBING STRING DESIGN FOR A WATER DRIVE RESERVOIR CHAPTER ONE INTRODUCTION 1.1     BACKGROUND TO THE STUDY Fluids are stored in the reservoir and must be produced to the surface facilities in order to be measured, treated and finally…

A REVIEW OF APPLICATION OF PRESSURE DERIVATIVE CONCEPT TO MULTIRATE TESTS ABSTRACT Pressure build-up data in low permeability reservoirs take too long and are usually of poor quality. A pressure buildup test is perhaps the most widely performed transient test.…

A REVIEW OF THE RHEOLOGICAL EFFECTS OF POWER LAW DRILLING FLUIDS ON CUTTINGS TRANSPORTATION IN NON-VERTICAL BOREHOLES ABSTRACT Cuttings transportation during in non-vertical boreholes is necessary for oil and gas wells. Adequate cuttings removal from a well in drilling is…

AN APPROACH TO WELL PLACEMENT AND PRODUCTION IN A GREEN FIELD ABSTRACT Reservoir development planning and well placement significantly affect hydrocarbon recovery. Therefore, strategic well placement and development techniques are essential to minimize the risk of unproductive drilling and also…

AN EXPERIMENTAL MODEL TO PREDICT AND CONTROL OILFIELD EMULSION TIGHTNESS: A NOVEL APPROACH   ABSTRACT Formation of water-in-oil emulsions are among the major challenges encountered by production and surface facilities engineers during the recovery of crude oil, especially in a…

ANALYSIS OF VOID FRACTION PHASE DISTRIBUTION OF GAS-LIQUID FLOW IN A HORIZONTAL PIPE USING WIRE MESH SENSOR DATA ABSTRACT The scope of this work was to make detailed analysis of phase distribution in a horizontal pipe. This detailed analysis has…

APPLICATION OF MINIMUM CURVATURE METHOD TO WELLPATH CALCULATIONS ABSTRACT A major drawback of directional and horizontal well drilling is the numerous complex computations required to be done while planning a well. These computations are very stressful and time consuming especially…

A-THREE DIMENSIONAL NUMERICAL SIMULATOR FOR EXPANSION-DRIVE RESERVOIRS ABSTRACT Every simulation study is a unique process, starting from the geological model and reservoir description to the final analysis of recovery factor optimizations. In petroleum engineering area, numerical reservoir simulators are often…

BUILDING AND RANKING OF GEOSTATISTICAL PETROLEUM RESERVOIR MODELS ABSTRACT Techniques in Geostatistics are increasingly being used to generate reservoir models and quantify uncertainty in reservoir properties. This is achieved through the construction of multiple realizations to capture the physically significant…

NATURAL FLOW AND ARTIFICIAL LIFT FOR A SOLUTION GAS DRIVE RESERVOIR 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…

COMPARATIVE ANALYSIS OF RESERVES DETERMINATION TECHNIQUES IN OVERPRESSURED GAS RESERVOIRS   ABSTRACT Conventional methods used in determining initial gas-in-place and reserves for a dry gas reservoir entails the use of P/z vs cumulative production data. In a normally pressured gas…

COMPARATIVE ECONOMICS OF PETROLEUM PRODUCTION OPTIMIZATION TECHNIQUES ABSTRACT Hydrocarbon production in the petroleum industry is often constrained by reservoir heterogeneity, deliverability and capacity of surface facilities, also optimization technique in the petroleum industry requires execution of several iterative runs by…

DETAILED ANALYSIS OF PRESSURE DROP IN A LARGE DIAMETER VERTICAL PIPE ABSTRACT With the ever increasing need to optimize production, the accurate understanding of the mechanics of multi-phase flow and its effect on the pressure drop along the oil-well flow…

DEVELOPMENT OF A COMPUTER PROGRAM FOR SOLIDS CONTROL ABSTRACT Computer software is used extensively to increase productivity and reduce man’s hours of labour. This work presents the development of a solids control software (SOLCON) which is designed for real time…

DEVELOPMENT OF A GAS CONDENSATE RESERVOIR ABSTRACT Gas condensate reservoirs are single phase at the initial condition. It changes to multiphase when the reservoir conditions are located between the critical point and the cricondentherm of the reservoir in the phase…

DEVELOPMENT OF BREAKTHROUGH TIME CORRELATIONS FOR CONING IN BOTTOM WATER SUPPORTED RESERVOIRS ABSTRACT This research work mainly investigates the development and the behavior of cones (both water and gas cones) in oil reservoirs supported by strong aquifer, and from which…

DEVELOPMENT OF GENERALIZED WELL SEMI-ANALYTICAL CONING MODELS ABSTRACT Oil deposits are often found in association with a communicating gas or water zone. The production of the oil often leads to the coning of water or gas. This dynamic interaction can…

DIAGNOSTIC PLOTS FOR ANALYSIS OF WATER PRODUCTION AND RESERVOIR PERFORMANCE ABSTRACT The research is aimed at the understanding of the various diagnostic plots for the analysis of water production that are available as well as the application of these methods…

ESTIMATION OF DRILLING WASTES – AN ENVIRONMENTAL CONCERN WHILE DRILLING OIL AND GAS WELLS ABSTRACT Despite its numerous benefits the search and production of crude oil poses a lot of dangers to the environment. Among these include land, water and…

ENHANCED OIL RECOVERY IN HIGH VISCOUS RESERVOIR USING THE THERMAL PROCESS   ABSTRACT New sources of energy should be found to relieve the high demand of energy. Even though heavy oil and bitumen are difficult to produce due to their…

EVALUATION OF IN-FILL WELL PLACEMENT AND OPTIMIZATION USING EXPERIMENTAL DESIGN AND GENETIC ALGORITHM ABSTRACT Determination of optimal well locations for infill drilling is a challenging task because engineering and geologic variables affecting reservoir performance are often nonlinearly correlated and have…

HYDRODYNAMICS BEHAVIOUR OF SLUG FLOW IN 800 OFF THE HORIZONTAL PIPE USING ELECTRICAL CAPACITANCE TOMOGRAPHY (ECT) DATA ABSTRACT This study presents an investigation of the hydrodynamics behaviour of slug flow in an inclined (80 degree inclination) and 67 mm internal…

IMPLICATION OF VOID PREDICTION IN THE DETERMINATION OF PRESSURE GRADIENT IN VERTICAL PIPES ABSTRACT This research work mainly investigates the implication of void prediction in the estimation of total pressure gradient in vertical pipes for multiphase flow systems. Experimental data…

INVESTIGATING HORIZONTAL-WELL INTERFERENCE TEST APPLICATIONS ABSTRACT One of the major challenges in reservoir engineering is the accurate description of the reservoir. This description is essential in all aspects of petroleum engineering, and is typically achieved through reservoir characterization by integrating…

INVESTIGATING THE BEHAVIOUR OF AIR-SILICONE OIL FLOWS IN VERTICAL AND HORIZONTAL PIPES FOR EFFECTIVE GAS-LIQUID TRANSPORT ABSTRACT The concurrent flow of gas/liquid in pipes poses a great challenge due to the difficulty associated with the flow of fluid. The flow…

MODELING AND SIMULATION OF RESERVOIR FORMATION DAMAGE DUE TO CHEMICAL PRECIPITATION AND PARTICULATE PROCESSES ABSTRACT Formation damage is an undesirable operational and economic problem that can occur in many phases of field development including drilling, completion, workover, production, stimulation, waterflooding…

OPTIMIZATION OF STRATEGIES FOR NATURAL GAS UTILIZATION ABSTRACT Nigeria is endowed with huge proven gas reserves estimated to be 184 trillion cubic feet (Tcf). It ranks as the 7th holder of natural gas reserves in the world, and the largest in…

PRACTICAL APPROACH TO EFFECTIVE SAND PREDICTION, CONTROL AND MANAGEMENT ABSTRACT The production of formation sand is a problem associated with most oil deposits in the world. Major Sand production effects affect safety, well or field economics and continuous production. This…

PRACTICAL APPROACHES FOR SOLVING LOST CIRCULATION PROBLEMS WHILE DRILLING ABSTRACT As the demand for petroleum resources increases, drilling of oil and gas wells are often carried out in challenging and hostile environments. Among the top ten drilling challenges facing the…

PRESSURE ANALYSIS OF A WELL WITH AN INCLINED HYDRAULIC FRACTURE IN A NATURALLY FRACTURED RESERVOIR ABSTRACT Hydraulic fracturing has been an effective technique to stimulate damaged wells or wells producing from low-permeability formation. It has been established that the orientation…

QUANTIFICATION OF UNCERTAINTY AND RISKS FOR DEVELOPING MARGINAL FIELDS ABSTRACT The Niger Delta is Nigeria’s and Africa’s most prol ific producing basin and has some untapped oil resources because of their marginality. The development of marginal oil field in Nigeria…

QUANTIFYING INCREMENTAL OIL PRODUCTION AND ECONOMICS OF USING INTELLIGENT COMPLETION AS A TOOL FOR RESERVOIR MANAGEMENT ABSTRACT Huge amount of hydrocarbon in place is left unrecovered. Integrated reservoir management, in addition to the use of new technologies improves hydrocarbon recovery.…

STATISTICAL CHARACTERIZATION OF PERFORMANCE OF BIOPOLYMER DRILL-IN FLUID FOR DIFFERENT RHEOLOGICAL MODELS ABSTRACT Appropriate selection of rheological models is important for hydraulic calculations of pressure loss prediction and hole cleaning efficiency of drilling fluids. Power law, Bingham-Plastic Herschel-Bulkley models are…

OIL SPILLAGE AND ITS ENVIRONMENTAL EFFECTS CHAPTER ONE INTRODUCTION 1.1   Background of the Study Crude oil originates from ancient fossilised materials having been converted into oil over millions of years through geochemical processes. It is found in the subsoil of…