Faith Uchenna Babalola

Faith Uchenna Babalola
University of Lagos | Unilag · Department of Chemical and Petroleum Engineering

PhD

About

27
Publications
8,413
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37
Citations
Introduction
Areas of interest *Thermodynamics of fluid systems *Phase Behavior Modeling of Reservoir fluids *Energy
Additional affiliations
January 1999 - March 2016
University of Lagos
Position
  • Lecturer

Publications

Publications (27)
Article
Full-text available
Global energy demand is driving the oil and gas industry to explore uncharted areas leading to unconventional reservoirs at extreme temperature (T > 420 K) and pressure (P > 68 MPa) conditions where widely used equations of state (EOS) models fail to accurately predict properties of reservoir fluids and model their phase behavior. This work compare...
Article
Full-text available
Efficient design, operation, handling, and transportation of natural gas as liquified natural gas (LNG) are controlled by its phase behavior. A phase, in a non-reacting system, is known to be stable when it is at its lowest Gibbs energy; an alternative criterion to the minimization of the Gibbs energy is presented for phase stability status determi...
Article
Full-text available
Abstract Efficient design, operation, handling, and transportation of natural gas as liquefied natural gas (LNG) are controlled by its phase behavior. A phase, in a non-reacting system, is known to be stable when it is at its lowest Gibbs energy; an alternative criterion to the minimization of the Gibbs energy is presented for phase stability statu...
Article
Full-text available
Honey was serially diluted with different percentages of glucose, fructose and water and each was analysed rheologically at room temperature of 27°C. Pure honey exhibits thixotropic time-dependent rheological behaviour, the behaviour of glucose and fructose solutions in water (a Newtonian solvent) tends towards near Newtonian. The rheological profi...
Article
Full-text available
Structural heterogeneity is one of the critical factors that can strongly impact on the performance of a reservoir. A compartmentalized reservoir (A1) in a mature Niger-Delta field, having two blocks separated by a fault was shown from seismic mapping to be non-sealing. The initial pressure data obtained for both the East and West blocks through a...
Article
Full-text available
The Thermodynamic Modeling Framework (TMF) for LNG systems is obviously not available and its focal point is the development of robust methods for thermodynamic stability analysis as well as algorithms for accurate phase split predictions. A new model is here developed with its algorithm and applied to a Nitrogen-rich LNG system. Two EOS models wer...
Article
Full-text available
Six equations of state (including ours) were compared for their thermodynamic property prediction accuracy for reservoir fluid systems. This was done using their percentage absolute deviation to search for and establish a trend in accuracy for each on conventional wells which will give a clue to their applicability to HPHT (High Pressure High Tempe...
Article
A sequel to delineating the need for models that will be stochastic rather than deterministic in nature in Part 1 and the development of such a model in Part 2, here in Part 3 a Monte Carlo Simulation for a condensate well during depletion is presented. The simulation runs were successful and the Monte Carlo Simulation was found to compete favorabl...
Article
Sequel to delineating the need for models that will be stochastic rather than deterministic in nature in Part 1 and the development of such a model in Part 2, here in Par 3 we present a Monte Carlo Simulation (MCS) for a condensate well during depletion. The simulation runs were successful and the MCS was found to compete favourably with a determin...
Article
Horizontal wells have emerged as a new alternative to vertical wells for optimal reservoir exploitation. The vertical to horizontal permeability anisotropy is a crucial variable in deciding which configuration can provide the best performance. This work presents the derivation of an improved equation using potential-fluid theory to calculate the pr...
Article
Full-text available
Directional drilling survey calculations are done using a few fully-developed calculation methods. The Average Angle Method was employed in this work to develop a windows-based software package. With little data requirement, namely; measured depth, inclination angle and direction and as few as six (6) steps, the well plot is obtained from raw data....
Article
Full-text available
It is highly desired to analyze reservoir fluids using Equation of State (EOS) models for the purpose of generating data for detailed understanding of their phase behavior. This is essential for efficient field development planning and reservoir management. In this work, modification was made to the Patel–Teja (PT) EOS and tested for methane and pr...
Article
The mass balance partial differential equation, being deterministic, was transformed into a Feynman-Kac differential equation, which is stochastic in nature, by employing some enabling but safe assumptions. The stochastic parameter κ was determined and found to be zero. This is a requirement for the applicability of the stochastic model to reservoi...
Article
The issue of stability limit determination as against stability limit testing analysis is discussed and the advantages of stability limit determination are outlined. Cyclohexane is considered as a representative naphthenic compound. In very few instances in past research works, its stability limit has been determined at a specified temperature. In...
Article
Stability testing analysis has become, in recent times, an area of major interest in phase equilibrium calculations. With particular concern to reservoir fluid phase behavior modeling, it has become the most important factor in developing robust algorithms and ensuring efficient calculations. We discuss the origin and systematic development of stab...
Article
For gas condensates, black oil models and at best modified black oil models are limited and inadequate due to their deterministic nature. Gas condensate models, which will match the required adequacy and serve in the development of techniques that can ensure optimal recovery, need to be stochastic in nature. In the near future, this will become inc...
Article
The mass balance partial differential equation, being deterministic was transformed into a Feynman-Kac differential equation which is stochastic in nature by employing some enabling but safe assumptions. The stochastic parameter κ was determined and found to be zero. This is a necessary requirement for the applicability of the stochastic model to r...
Article
The mixing rules are used in the cubic equations of state to determine the values of the attractive force parameter, a, and the repulsive force parameter, b, mixtures. The mixing rules are applied here to reservoir fluids. It was discovered that parameter a should not be treated as a constant since it varied significantly with pressure. It was ther...
Article
The Helmholtz criteria for equilibrium and stability were used with the Peng-Robinson (P-R) equation of state to determine the limits of stability for n-hexane, cyclohexane, and benzene, as representative paraffinic, naphthenic, and aromatic compounds, respectively. The cubic equation that results from the criteria of stability was solved to obtain...
Article
Full-text available
KPIM of Gas Transportation: Robust Modification of Gas Pipeline Equations Studies of the flow conditions of natural gases in pipelines have led to the development of complex equations for relating the volume transmitted through a gas pipeline to the various factors involved, thus deciding the optimum pressures and pipeline dimensions to be used. Fr...

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