This paper presents dataset on the beneficiation of a Nigerian claymineral for drilling mud application. The experimental designapplied used a Response Surface Design (RSM), which involved 24(2-Level, 4-Factors) to generate statistical models, and analyze thedataset. The independent variables were (Bentonite; X1), (Polymer;X2), (Sodium Carbonate, X3) and (Aging Time; X4). The rheologicalproperties of interest, which forms the response variables, wereselected based on the API specification 13-...
A design of experiment was used to create oil rim models from a wider range of reservoir, operational andreservoir architecture parameters. A response surface model was generated based on a concurrent oil and gasproduction and a Pareto analysis was conducted to ascertain the significance of the parameters. The models wereclassified based on the Pareto analysis and due to the low oil recoveries arising from the complexity of oil rims, aseries of secondary injection schemes were instigated. The...
The development of gas reservoirs and the key decisions to bemade concerning gas reservoirs such as the number of wells todrill, well fracturing and capacity of the surface processingfacilities are dependent on its productivity. Condensateblockage caused by liquid build up is difficult to control in theaforementioned reservoirs thereby affecting production. In thiswork, production is optimized from gas condensate reservoirsusing horizontal wells. This is to demonstrate the performanceof horiz...
Sidetrack operations which involves accessing a new zone and commingling production gives rise touncertainties and proxy models have shown to be able to incorporate uncertainties and mimic real-lifescenarios to an acceptable degree of accuracy. In this paper, a time-based proxy model which integrates the uncertainties that emerge as a result of several reservoir parameters was developed usingNPV as the objective function. A black oil simulator was used to generate the production profile andNP...
Thin oil rim reservoirs are those with less than a 100 ft. of oil thickness underlain andoverlain by an aquifer and gas cap respectively. Irrespective of the sizes of the aquifer or gas cap,oil rims productivity is usually low due to excessive coning of water and gas. Productionoptimizations are usually carried out before recovery schemes are initiated. One of such is aconcurrent oil and gas production which is used in comparison with sequential production in thisstudy in conjunction with pro...
Water coning is a serious issue for the oil and gas industry. This poses a bigconcern regarding the costs that to be incurred for separation and equipmentcapacity. Coning is the production of an unwanted phase with a desired phase. Overthe years, many techniques and control methods has been birthed, however, the issueof coning can only be mitigated and not completely discharged. Reservoir andproduction engineers need to understand the basic framework; the parameters thatgreatly influence coni...
Production from most oil field using waterflooding has proven not to produce residual oil due to numerous factors. Several recovery mechanisms have been applied which to an extent has its own influence both on the environment, percentage recovery and also the cost of purchase. In this blending process the bio-surfactant derived from jatropha oil at different concentrations were augmented with nanoparticles for core flooding experiment. A blend of Bio-surfactant and nanoparticles (B-NPs) is a ...
Gas flaring is one of the major problems in the world. It consumes useful natural resources and produces harmful wastes, which have negative impacts on society. It is one of the most tedious energy and environmental problems facing the world today. It is a multi-billion dollar waste, a local environmentalcatastrophe and environmental problem which has persisted for decades. From the year 1996-2010, in Nigeria, 12,602,480.25 million ft 3 of natural gas was flared (NNPC). This is equivalent to ...
There are numerous gas hydrate reserves all over the world, especially in permafrost regions and ocean environments. The abundance of gas hydrate reserves is estimated to be more than twice of the combined carbon of coal, conventional gas, and petroleum reserves. These hydrate deposits hold a significant amount of energy which can make hydrate a sustainable energy resource. The comprehensive research on the properties and formation of methane hydrates is paramount to ensure efficient and effe...
Hydrate formation can cause serious problems in hydrocarbon exploration, production, and transportation, especially in deepwater environments. Hydrate-related problems affect the integrity of the deepwater platforms, leads to equipment blockages, and also increases operational costs. In order to solve these problems, salts are used as thermodynamic inhibitors and also mixed with the drilling fluids in most drilling processes. A comprehensive understanding of hydrate formation in aqueous salt ...
The dissociation conditions of methane hydrate in high concentration aqueous solutions of NaCl, KCl, and CaCl2 are reported in this work. A total of 80 sets of H−L−V equilibrium data of methane hydrate in aqueous solutions of NaCl (9.45−23.71 wt %), KCl (13.93−21.88 wt %), and CaCl2 (13.78−35.50 wt %) were measured at the temperature range of (273.65−291.85) K and the pressure range of (5.43−65.12) MPa. A modified step-heating method with high efficiency was employed in the meas...
This study investigated the concentration of heavy metals in oil field produced water from Niger Delta, before and after treatment with locally sourced agricultural wastes. Two produced water samples were investigated for different metal ions such as; Lead, Nickel, Cadmium, Copper, Iron, Magnesium, Chromium, Zinc, Manganese, Calcium, Arsenic, Boron, Tin and Barium. The produced water samples were treated with four different adsorbents which are; Orange peels, Banana peels, Palm Kernel Fiber a...
For a volumetric gas reservoir, gas expansion (the most significant source of energy) dominates depletion behavior, and the general gas MBE is a very simple yet powerful tool for interpretation. However, in cases where other source of energy are significant enough to cause deviation from the linear behavior of the P/Z plot, a more sophisticated tool is required. For this, a more advance...
ABSTRACT For the past few years, the oil and gas industry has faced several economic, geographic and technical challenges largely due to decline in crude oil prices and market volatility. In the quest to address some of these challenges to accelerate production and subsequently maximize ultimate recovery, operators are limited to remote hydraulic and electro-hydraulic monitoring and control of safety valves providing the means of obtaining downhole production data which demands peri...
This is a review of The HP HT wells in Niger Delta.