Dr Gbenga Oluyemi's Outputs (69)

A review of well life cycle integrity challenges in the oil and gas industry and its implications for sustained casing pressure (SCP). (2024)
Journal Article
IBUKUN, M., ELYAN, E., AMISH, M., NJUGUNA, J. and OLUYEMI, G.F. 2024. A review of well life cycle integrity challenges in the oil and gas industry and its implications for sustained casing pressure (SCP). Energies [online], 17(22), article number 5562. Available from: https://doi.org/10.3390/en17225562

Sustained Casing Pressure (SCP) is a condition in oil and gas wells where continuous pressure buildup in the well casing over a long period of time occurs. Several factors might be responsible for this, including the influx of formation fluids, the l... Read More about A review of well life cycle integrity challenges in the oil and gas industry and its implications for sustained casing pressure (SCP)..

Environmental impact assessment of a plant cell-based bio-manufacturing process for producing plant natural product ingredients. (2024)
Journal Article
OLUYEMI, G.F., AFOLABI, R.O., ZAMORA, S.C., LI, Y. and MCELROY, D. 2024. Environmental impact assessment of a plant cell-based bio-manufacturing process for producing plant natural product ingredients. Sustainability [online], 16(19), article number 8515. Available from: https://doi.org/10.3390/su16198515

This study employed a Life Cycle Assessment (LCA) methodology to evaluate the environmental impacts of a novel plant cell-based biomanufacturing process for producing plant natural product ingredients. The primary purpose was to assess the relative s... Read More about Environmental impact assessment of a plant cell-based bio-manufacturing process for producing plant natural product ingredients..

Assessment of polymer resins as alternative abandonment barrier materials for high pressure high temperature (HPHT) wells: a multi criteria decision making approach. (2024)
Presentation / Conference Contribution
CHUKWUEMEKA, A.O., NJUGUNA, J., OLUYEMI, G. and ATTAR, S. 2024. Assessment of polymer resins as alternative abandonment barrier materials for high pressure high temperature (HPHT) wells: a multi criteria decision making approach. Presented at the 2024 SPE (Society of Petroleum Engineers) Nigeria annual international conference and exhibition (NAICE 2024), 5-7 August 2024, Lagos, Nigeria.

Portland cement is the predominant material for permanent abandonment of oil and gas wells. However, resins are increasingly finding applications in the mix of barrier materials for plug and abandonment of wells because of unique features that enable... Read More about Assessment of polymer resins as alternative abandonment barrier materials for high pressure high temperature (HPHT) wells: a multi criteria decision making approach..

Artificial lift selection methods in conventional and unconventional wells: a summary and review from old techniques to machine learning applications. (2024)
Journal Article
MAHDI, M.A.A., AMISH, M. and OLUYEMI, G. 2024. Artificial lift selection methods in conventional and unconventional wells: a summary and review from old techniques to machine learning applications. International journal of innovative science and research technology [online], 9(3), pages 2342-2356. Available from: https://doi.org/10.38124/ijisrt/IJISRT24MAR2108

Artificial lift (AL) selection is an important process in enhancing oil and gas production from reservoirs. This article explores the old and current states of AL selection in conventional and unconventional wells, identifying the challenges faced in... Read More about Artificial lift selection methods in conventional and unconventional wells: a summary and review from old techniques to machine learning applications..

Transport of nanoparticles in porous media and associated environmental impact: a review. (2024)
Journal Article
YUSUF, E.O., AMBER, I., OFFICER, S. and OLUYEMI, G.F. 2024. Transport of nanoparticles in porous media and associated environmental impact: a review. Journal of engineering research [online], 12(2), pages 275-284. Available from: https://doi.org/10.1016/j.jer.2024.01.006

The release of nanoparticles into the environment occurs at different stages during their life cycle, with significant harmful effects on the human (e.g., lung inflammation and heart problems) and the ecosystem (e.g., soil and groundwater contaminati... Read More about Transport of nanoparticles in porous media and associated environmental impact: a review..

Geomechanical impact of bio-competitive exclusion chemical on reservoir rocks. (2023)
Thesis
PERETOMODE, E. 2023. Geomechanical impact of bio-competitive exclusion chemical on reservoir rocks. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2571274

This study describes a novel approach known as "bio-competitive exclusion", which uses chemical nitrates as an oilfield chemical to treat reservoir souring and control the activities of sulfate-reducing bacteria. Because of its flexibility and extens... Read More about Geomechanical impact of bio-competitive exclusion chemical on reservoir rocks..

A summary of artificial lift failure, remedies and run life improvements in conventional and unconventional wells. (2023)
Journal Article
MAHDI, M.A.A., AMISH, M., OLUYEMI, G. and ABDULMONIEM, M. 2023. A summary of artificial lift failure, remedies and run life improvements in conventional and unconventional wells. International journal of innovative science and research technology [online], 8(11), pages 1589-1596. Available from: https://doi.org/10.5281/zenodo.10251115

Artificial lift (AL) systems are crucial for enhancing oil and gas production from reservoirs. However, the failure of these systems can lead to significant losses in production and revenue. This paper explores the different types of AL failures and... Read More about A summary of artificial lift failure, remedies and run life improvements in conventional and unconventional wells..

Integrated data analysis approach to select artificial lift method using machine learning. (2023)
Thesis
MAHDI, M.A.A. 2023. Integrated data analysis approach to select artificial lift method using machine learning. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2571156

The optimisation of artificial lift (AL) selection in the oil and gas industry stands as a critical endeavour, directly impacting production efficiency, cost-effectiveness and overall operational success. Traditional AL selection methods rely on engi... Read More about Integrated data analysis approach to select artificial lift method using machine learning..

Plug and abandonment of oil and gas wells: a comprehensive review of regulations, practices, and related impact of materials selection. (2023)
Journal Article
CHUKWUEMEKA, A.O., OLUYEMI, G., MOHAMMED, A.I. and NJUGUNA, J. 2023. Plug and abandonment of oil and gas wells: a comprehensive review of regulations, practices, and related impact of materials selection. Geoenergy science and engineering [online], 226, article 211718. Available from: https://doi.org/10.1016/j.geoen.2023.211718

This paper reviews the state of research in permanent barrier materials for plug and abandonment of oil and gas wells to identify key strengths and weaknesses of each barrier material and understand the impact of reservoir conditions and fluids on ba... Read More about Plug and abandonment of oil and gas wells: a comprehensive review of regulations, practices, and related impact of materials selection..

An artificial lift selection approach using machine learning: a case study in Sudan. (2023)
Journal Article
MAHDI, M.A.A., AMISH, M. and OLUYEMI, G. 2023. An artificial lift selection approach using machine learning: a case study in Sudan. Energies [online], 16(6), article number 2853. Available from: https://doi.org/10.3390/en16062853

This article presents a machine learning (ML) application to examine artificial lift (AL) selection, using only field production datasets from a Sudanese oil field. Five ML algorithms were used to develop a selection model, and the results demonstrat... Read More about An artificial lift selection approach using machine learning: a case study in Sudan..

An investigation into the effectiveness of the design and enforcement of Nigeria's anti-gas flaring law and policy regimes, and the considerations of measures that could improve environmental regulatory compliance. (2022)
Thesis
MOHAMMED, J.I. 2022. An investigation into the effectiveness of the design and enforcement of Nigeria's anti-gas flaring law and policy regimes, and the considerations of measures that could improve environmental regulatory compliance. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1893017

Since the discovery of the commercial hydrocarbon deposit in 1956, activity of Nigeria's petroleum industry has dramatically increased. The industry now contributes an average of two million barrels of crude oil daily to the global oil market. Howeve... Read More about An investigation into the effectiveness of the design and enforcement of Nigeria's anti-gas flaring law and policy regimes, and the considerations of measures that could improve environmental regulatory compliance..

Cuttings transport and hydraulics optimisation for underbalanced drilling (UBD) operations in concentric and eccentric, directional and extended reach wells. (2022)
Thesis
SALUBI, V. 2022. Cuttings transport and hydraulics optimisation for underbalanced drilling (UBD) operations in concentric and eccentric, directional and extended reach wells. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1893048

Underbalanced drilling facilitates the effective control of wellbore pressures - amongst several other important advantages - when compared to conventional drilling technology. However, this involves the flow of multiphase fluids, which introduces ad... Read More about Cuttings transport and hydraulics optimisation for underbalanced drilling (UBD) operations in concentric and eccentric, directional and extended reach wells..

Sand production due to chemical-rock interaction: a review. (2022)
Journal Article
PERETOMODE, E., OLUYEMI, G. and FAISAL, N.H. 2022. Sand production due to chemical-rock interaction: a review. Engineering failure analysis [online], 142, article 106745. Available from: https://doi.org/10.1016/j.engfailanal.2022.106745

Oilfield chemicals are utilized in treating reservoir formations, wellbore completions, wellbore drilling, and to enhance reservoir productivity, which exerts pressure on the formation. Pressure from these processes cause the formation rock to weaken... Read More about Sand production due to chemical-rock interaction: a review..

Oilfield chemical-formation interaction and the effects on petrophysical properties: a review. (2022)
Journal Article
PERETOMODE, E., OLUYEMI, G. and FAISAL, N.H. 2022. Oilfield chemical-formation interaction and the effects on petrophysical properties: a review. Arabian journal of geosciences [online], 15(13), article 1223. Available from: https://doi.org/10.1007/s12517-022-10469-9

Oil and gas recovery may cause formation damage during drilling, completion, and production phases. As a result of fundamental chemical, thermal, mechanical, and biological interactions, formation damage can occur due to impairment of permeability an... Read More about Oilfield chemical-formation interaction and the effects on petrophysical properties: a review..

Development of an optimised integrated underbalanced drilling strategy for cuttings transport in gas-liquid flow through wellbore annuli. (2022)
Thesis
MAHON, R. 2022. Development of an optimised integrated underbalanced drilling strategy for cuttings transport in gas-liquid flow through wellbore annuli. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1880278

Although understanding the relationship between gas-liquid two-phase fluid flows and the effects of the major drilling variables is critical to optimising underbalanced drilling (UBD) operations, to date, this has been an area of limited research and... Read More about Development of an optimised integrated underbalanced drilling strategy for cuttings transport in gas-liquid flow through wellbore annuli..

The fate of waste drilling fluids from oil and gas industry activities in the exploration and production operations. (2022)
Journal Article
NJUGUNA, J., SIDDIQUE, S., KWROFFIE, L.B., PIROMRAT, S., ADDAE-AFOAKWA, K., EKEH-ADEGBOTOLU, U., OLUYEMI, G., YATES, K., MISHRA, A.K. and MOLLER, L. 2022. The fate of waste drilling fluids from oil and gas industry activities in the exploration and production. Waste management [online], 139, pages 362-380. Available from: https://doi.org/10.1016/j.wasman.2021.12.025

Operational discharges from oil and gas exploration industry, accidental spillage, or improperly disposed drilling wastes has serious detrimental effects on human and the environment. The water- and oil-based fluids wastes are generated every year al... Read More about The fate of waste drilling fluids from oil and gas industry activities in the exploration and production operations..

The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli. (2021)
Journal Article
SALUBI, V., MAHON, R. and OLUYEMI, G. 2022. The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli. Journal of petroleum science and engineering [online], 211, article 110018. Available from: https://doi.org/10.1016/j.petrol.2021.110018

The accurate prediction of the fluid dynamics and hydraulics of the axial or helical flow of non-Newtonian drilling fluids in the annuli is essential for the determination and effective management of wellbore pressure during drilling operations. Prev... Read More about The combined effect of fluid rheology, inner pipe rotation and eccentricity on the flow of Newtonian and non-Newtonian fluid through the annuli..

Computational fluid dynamics modelling of multi-phase flow transition in presence of solid particles. (2021)
Thesis
ALAITA, D.A. 2021. Computational fluid dynamics modelling of multi-phase flow transition in presence of solid particles. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1603672

Multi-phase flow is the type of flow common in the oil and gas industry, as oil reservoirs contain mixtures of oil, gas and water with sand particles from sandstone reservoirs. Accurate design of oil and gas production equipment greatly depends on de... Read More about Computational fluid dynamics modelling of multi-phase flow transition in presence of solid particles..

Computational fluid dynamics modelling of fluid flow inside fractured reservoirs. (2021)
Thesis
AL-MASHHADANIE, H.A.J. 2021. Computational fluid dynamics modelling of fluid flow inside fractured reservoirs. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1603660

Fractured media exist in most layers of the earth's crust, often dominating bulk properties of subsurface geological formations. Therefore, fractured media are involved in many key engineering sectors that impact humans living on Earth. Fractured for... Read More about Computational fluid dynamics modelling of fluid flow inside fractured reservoirs..

A new approach for quantitative mapping of retention mechanisms of associative polymers in porous media. (2021)
Journal Article
AFOLABI, R.O., OLUYEMI, G.F., OFFICER, S. and UGWU, J.O. 2021. A new approach for quantitative mapping of retention mechanisms of associative polymers in porous media. Journal of molecular liquids [online], 343, article 117685. Available from: https://doi.org/10.1016/j.molliq.2021.117685

The retention of associative polymer molecules poses a significant challenge for its transport in porous media, and this arises due to the hydrophobic interactions that exists between the retained molecules. The known experimental approach in literat... Read More about A new approach for quantitative mapping of retention mechanisms of associative polymers in porous media..

Drilling geomechanical assessment using integrated reservoir workflow. (2021)
Presentation / Conference Contribution
HAMID, O., SANAEE, R. and OLUYEMI, G. [2021]. Drilling geomechanical assessment using integrated reservoir workflow. To be presented at 2021 International field exploration and development conference (IFEDC 2021): efficient development of oil and gas driven by surveillance technology, 16-18 September 2021, Qingdao, China.

Advanced geomechanical solutions for reservoir life cycle. (2021)
Presentation / Conference Contribution
HAMID, O., SANAEE, R. and OLUYEMI, G. 2021. Advanced geomechanical solutions for reservoir life cycle. To be presented at 2021 International field exploration and development conference (IFEDC 2021): efficient development of oil and gas driven by surveillance technology, 16-18 September 2021, Qingdao, China.

Effect of two-phase gas-liquid flow patterns on cuttings transport efficiency. (2021)
Journal Article
SALUBI, V., MAHON, R., OLUYEMI, G. and OYENEYIN, B. 2022. Effect of two-phase gas-liquid flow patterns on cuttings transport efficiency. Journal of petroleum science and engineering [online], 208(part A), article 109281. Available from: https://doi.org/10.1016/j.petrol.2021.109281

Effective cuttings transport and accurate drilling hydraulics prediction remain issues of concern during drilling operations of horizontal, extended reach and multilateral wells. While several studies have adopted a two- or three-layered modelling ap... Read More about Effect of two-phase gas-liquid flow patterns on cuttings transport efficiency..

Correction to: Swelling performance of sodium polyacrylate and poly(acrylamide‑co‑acrylic acid) potassium salt. (2021)
Journal Article
MAHON, R., BALOGUN, Y., OLUYEMI, G., and NJUGUNA, J. 2021. Correction to: Swelling performance of sodium polyacrylate and poly(acrylamide-co-acrylic acid) potassium salt. SN applied sciences [online], 3(8), article 756. Available from: https://doi.org/10.1007/s42452-021-04654-w

The original version of this Article contained an error of judgement in the inclusion of the names of the polymers and their application. The names of the polymers and their application were included, however, due to potential issues relating to conf... Read More about Correction to: Swelling performance of sodium polyacrylate and poly(acrylamide‑co‑acrylic acid) potassium salt..

Effect of produced sand particles and fines on scale inhibitor: a review. (2021)
Journal Article
ANYANWU, U.C. and OLUYEMI, G.F. 2021. Effect of produced sand particles and fines on scale inhibitor: a review. Colloids and interfaces [online], 5(3), article 35. Available from: https://doi.org/10.3390/colloids5030035

Application of scale inhibitors in oil and gas production is aimed at mitigating scale blockage during production. Many experimental, mathematical, and numerical simulation modeling works have been carried out to evaluate behavior, performance, and i... Read More about Effect of produced sand particles and fines on scale inhibitor: a review..

Horizontal stress rotation due to reservoir depletion. (2021)
Presentation / Conference Contribution
HAMID, O., SANAEE, R. and OLUYEMI, G. 2021. Horizontal stress rotation due to reservoir depletion. Presented at 55th US rock mechanics/geomechanics American Rock Mechanics Association (ARMA) symposium, 18-25 June 2021, [virtual conference].

The principal stress rotations axes are observed due to fluid injection into reservoirs, hydrocarbon production, and around the fractures during wellbore stimulation operation and faults. Local stress fields around the fractures will change during re... Read More about Horizontal stress rotation due to reservoir depletion..

Experimental investigation of the displacement flow mechanism and oil recovery in primary polymer flood operations. (2021)
Journal Article
MAHON, R., OLUYEMI, G., OYENEYIN, B. and BALOGUN, Y. 2021. Experimental investigation of the displacement flow mechanism and oil recovery in primary polymer flood operations. SN applied sciences [online], 3(5), article 557. Available from: https://doi.org/10.1007/s42452-021-04360-7

Polymer flooding is a mature chemical enhanced oil recovery method employed in oilfields at pilot testing and field scales. Although results from these applications empirically demonstrate the higher displacement efficiency of polymer flooding over w... Read More about Experimental investigation of the displacement flow mechanism and oil recovery in primary polymer flood operations..

Experimental investigation of the effect of temperature on two-phase oil-water relative permeability. [Dataset] (2021)
Data
BALOGUN, Y., IYI, D., OYENEYIN, B., FAISAL, N., OLUYEMI, G. and MAHON, R. 2021. Experimental investigation of the effect of injection temperature on two-phase oil-water relative permeability. [Dataset]. Journal of petroleum science and engineering [online], 203, article 108645. Available from: https://www.sciencedirect.com/science/article/pii/S0920410521003053#appsec1

This work investigates the effect of temperature on oil-water relative permeability using well-sorted unconsolidated silica sandpacks, by adopting the unsteady-state relative permeability method, and by applying numerical history matching technique.... Read More about Experimental investigation of the effect of temperature on two-phase oil-water relative permeability. [Dataset].

Experimental investigation of the effect of temperature on two-phase oil-water relative permeability. (2021)
Journal Article
BALOGUN, Y., IYI, D., FAISAL, N., OYENEYIN, B., OLUYEMI, G. and MAHON, R. 2021. Experimental investigation of the effect of temperature on two-phase oil-water relative permeability. Journal of petroleum science and engineering [online], 203, article ID 108645. Available from: https://doi.org/10.1016/j.petrol.2021.108645

Relative permeability is affected by several flow parameters, mainly the operating temperature and fluid viscosity. Fluid viscosities change with temperature, which correspondingly affects the relative permeability. Temperature is believed to have a... Read More about Experimental investigation of the effect of temperature on two-phase oil-water relative permeability..

Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system. (2021)
Thesis
BALOGUN, Y. 2021. Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1357866

Relative permeability is affected by several flow parameters, predominantly operating temperature and fluid viscosity. Fluid viscosity changes with temperature, which correspondingly affects the relative permeability. Temperature is believed to have... Read More about Numerical and experimental study of the impact of temperature on relative permeability in an oil and water system..

Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static condition. (2020)
Journal Article
WUYEP, E., OLUYEMI, G., YATES, K. and AKISANYA, A.R. 2020. Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static condition. Arabian journal of geosciences [online], 13(23), article ID 1239. Available from: https://doi.org/10.1007/s12517-020-06176-y

The effects of chemical interaction of a biocide with formation rocks on the rock geomechanical properties are examined. A combination of analytical tests (Scanning Electron Microscopy/Energy-Dispersive X-Ray Analysis, X-Ray Powder Diffraction and Pa... Read More about Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static condition..

Developing a novel mechanistic model for four-phase oil-water-gas-sand stratified flow in a horizontal pipe. (2020)
Thesis
MORADI, B. 2020. Developing a novel mechanistic model for four-phase oil-water-gas-sand stratified flow in a horizontal pipe. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://openair.rgu.ac.uk

Presence of sand and solid particles in untreated petroleum sometime is inevitable. Although many techniques have been developed to prevent sand particles from entering the pipeline, such as downhole gravel packs, these downhole sand control devices... Read More about Developing a novel mechanistic model for four-phase oil-water-gas-sand stratified flow in a horizontal pipe..

A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. (2020)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2020. A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. Decision making: applications in management and engineering [online], 3(2), pages 97-118. Available from: https://doi.org/10.31181/dmame2003097v

Classical decision and value of information theories have been applied in the oil and gas industry from the 1960s with partial success. In this research, we identify that the classical theory of value of information has weaknesses related with optima... Read More about A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria..

Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes. (2020)
Journal Article
AFOLABI, R.O., OLUYEMI, G.F., OFFICER, S. and UGWU, J.O. 2020. Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes. Journal of molecular liquids [online], 317, article ID 114142. Available from: https://doi.org/10.1016/j.molliq.2020.114142

Hydrophobic interactions are an inherent property of associative polymers which results in the formation of molecular aggregates. The loss of hydrophobic interactions under reservoir conditions have been reported, and this results in increased fluid... Read More about Determination of a critical separation concentration for associative polymers in porous media based on quantification of dilute and semi-dilute concentration regimes..

Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry. (2020)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2020. Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry. International journal of applied decision sciences [online], 13(3), pages 344-362. Available from: https://doi.org/10.1504/IJADS.2020.10026404

Value of information is a widely accepted methodology for evaluating the need to acquire new data in the oil and gas industry. In the conventional approach to estimating the value of information, the outcomes of a project assessment relate to the dec... Read More about Sensitivity analysis applied to fuzzy inference on the value of information in the oil and gas industry..

Swelling performance of sodium polyacrylate and poly(acrylamide-co-acrylic acid) potassium salt. (2019)
Journal Article
MAHON, R., BALOGUN, Y., OLUYEMI, G. and NJUGUNA, J. 2020. Swelling performance of sodium polyacrylate and poly (acrylamide-co-acrylic acid) potassium salt. SN applied sciences [online], 2(1), article ID 117. Available from: https://doi.org/10.1007/s42452-019-1874-5

The application of superabsorbent polymer hydrogels in the oil and gas industry for reservoir and well management is gaining more traction. In this study, the swelling performance and adsorption kinetics of two commercial superabsorbent polymer hydro... Read More about Swelling performance of sodium polyacrylate and poly(acrylamide-co-acrylic acid) potassium salt..

A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. [Thesis] (2019)
Thesis
VILELA IBARRA, M.J. 2019. A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

The research presented in this thesis integrates theories and techniques from statistical analysis and artificial intelligence, to develop a more coherent, robust and complete methodology for assessing the value of acquiring new information in the co... Read More about A holistic approach to assessment of value of information (VOI) with fuzzy data and decision criteria. [Thesis].

Petrophysical and geomechanical characterization of a marginal (Wabi) field reservoir in north-central Niger Delta. (2019)
Thesis
ZORASI, C.B. 2019. Petrophysical and geomechanical characterization of a marginal (Wabi) field reservoir in north-central Niger Delta. Robert Gordon University [online], MRes thesis. Available from: https://openair.rgu.ac.uk

The aim of this study is to evaluate marginal field petrophysical and geomechanical parameters, and to develop a model for analysis of geomechanical problems, in order to mitigate stress-related issues in drilling, development and reservoir managemen... Read More about Petrophysical and geomechanical characterization of a marginal (Wabi) field reservoir in north-central Niger Delta..

Hydrophobically associating polymers for enhanced oil recovery, part b: a review of modelling approach to flow in porous media. (2019)
Journal Article
AFOLABI, R.O., OLUYEMI, G.F., OFFICER, S. and UGWU, J.O. 2019. Hydrophobically associating polymers for enhanced oil recovery, part b: a review of modelling approach to flow in porous media. Journal of molecular liquids [online], 293, article ID 111495. Available from: https://doi.org/10.1016/j.molliq.2019.111495

Polymer flow in porous media represents an entirely different scenario compared to bulk flow analysis using viscometers. This is due to the geometry and configuration of the medium which is made up of converging-diverging flow paths. In this article,... Read More about Hydrophobically associating polymers for enhanced oil recovery, part b: a review of modelling approach to flow in porous media..

Evaluation of interactions between oilfield chemicals and reservoir rocks. (2019)
Journal Article
WUYEP, E.O., OLUYEMI, G.F., YATES, K. and AKISANYA, A.R. 2020. Evaluation of interactions between oilfield chemicals and reservoir rocks. Natural resources research [online], 29(2), pages 1239-1258. Available from: https://doi.org/10.1007/s11053-019-09523-3

Sand failure and production occurs when the formation stress exceeds the strength of the formation which is derived majorly from the natural material that cements the sand grain and cohesive forces. This study investigates the effects of scale inhibi... Read More about Evaluation of interactions between oilfield chemicals and reservoir rocks..

Fuzzy logic applied to value of information assessment in oil and gas projects. (2019)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2019. Fuzzy logic applied to value of information assessment in oil and gas projects. Petroleum science [online], 16(5), pages 1208-1220. Available from: https://doi.org/10.1007/s12182-019-0348-0

The concept of value of information (VOI) has been widely used in the oil industry when making decisions on the acquisition of new data sets for the development and operation of oil fields. The classical approach to VOI assumes that the outcome of th... Read More about Fuzzy logic applied to value of information assessment in oil and gas projects..

Hydrophobically associating polymers for enhanced oil recovery, part a: a review on the effects of some key reservoir conditions. (2019)
Journal Article
AFOLABI, R.O., OLUYEMI, G.F., OFFICER, S. and UGWU, J.O. 2019. Hydrophobically associating polymers for enhanced oil recovery, part a: a review on the effects of some key reservoir conditions. Journal of petroleum science and engineering [online], 180, pages 681-698. Available from: https://doi.org/10.1016/j.petrol.2019.06.016

Research advancement in polymer flooding for Enhanced Oil Recovery (EOR) has been growing over the last decade. This growth can be tied to increased funding towards the development of superior polymers such as hydrophobically associating polymers whe... Read More about Hydrophobically associating polymers for enhanced oil recovery, part a: a review on the effects of some key reservoir conditions..

A fuzzy inference system applied to value of information assessment for oil and gas industry. (2019)
Journal Article
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2019. A fuzzy inference system applied to value of information assessment for oil and gas industry. Decision making: applications in management and engineering [online], 2(2), pages 1-18. Available from: https:// doi.org/10.31181/dmame1902001v

Value of information is a widely accepted methodology for evaluating the need to acquire new data in the oil and gas industry. In the conventional approach to estimating the value of information, the outcomes of a project assessment relate to the dec... Read More about A fuzzy inference system applied to value of information assessment for oil and gas industry..

Petroleum production: polymers in. (2018)
Other
OLUYEMI, G.F. 2019. Petroleum production: polymers in. In Mishra, M. (ed.) Encyclopedia of polymer applications. Abingdon: CRC Press [online], chapter 98, pages 2041-2060. Available from: https://doi.org/10.4324/9781351019422

Polymers are widely used in oil and gas industry for a range of petroleum production applications. Their viscoelastic and solution thickening properties have particularly made them a chemical of choice for petroleum production applications. This entr... Read More about Petroleum production: polymers in..

Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP). (2018)
Journal Article
ANI, M., OLUYEMI, G., PETROVSKI, A. and REZAEI-GOMARI, S. 2019. Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP). Journal of petroleum science and engineering [online], 174, pages 833-843. Available from: https://doi.org/10.1016/j.petrol.2018.11.024

The selection of an optimal model from a set of multiple realizations for dynamic reservoir modelling and production forecasts has been a persistent issue for reservoir modelers and decision makers. Current evidence has shown that many presumably goo... Read More about Ranking of geostatistical models and uncertainty quantification using signal detection principle (SDP)..

Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. (2018)
Thesis
WUYEP, E.O. 2018. Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Sand failure may result in the production of formation sand at the same time the formation fluids are being produced. Sand failure occurs when the formation stress exceeds the strength of the formation, which is derived mainly from the natural materi... Read More about Chemical and physical effects of interaction between oilfield chemicals and formation rocks and integration with sand failure prediction models..

Gas-condensate flow modelling for shale reservoirs. (2018)
Journal Article
LABED, I., OYENEYIN, B. and OLUYEMI, G. 2018. Gas-condensate flow modelling for shale reservoirs. Journal of natural gas science and engineering [online], 59, pages 156-167. Available from: https://doi.org/10.1016/j.jngse.2018.08.015

Condensate banking is the most challenging engineering problem in the development of gas-condensate reservoirs where the condensate accumulation can dramatically reduce the gas permeability resulting in impairment of wells productivity. An accurate a... Read More about Gas-condensate flow modelling for shale reservoirs..

Optimisation of hydraulic fracture placement design in anisotropic shale reservoirs using azimuthal LWD sonic and spectral gamma ray analysis. (2018)
Journal Article
OLUYEMI, G.F. and AFOLABI, T.S. 2018. Optimisation of hydraulic fracture placement design in anisotropic shale reservoirs using azimuthal LWD sonic and spectral gamma ray analysis. International journal of petroleum engineering [online], 3(2), pages 83-94. Available from: https://doi.org/10.1504/IJPE.2018.093154

Hydraulic fracturing (fracking) of shale resources has become a trend in the oil and gas industry that is associated with exorbitant costs. This calls for certainty in the productivity and success of every fracture stimulation program. Current fracki... Read More about Optimisation of hydraulic fracture placement design in anisotropic shale reservoirs using azimuthal LWD sonic and spectral gamma ray analysis..

Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks. (2018)
Journal Article
WUYEP, E.O., OLUYEMI, G.F., YATES, K. and AKISANYA, A.R. 2018. Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks. Journal of petroleum science and engineering [online], 165, pages 347-357. Available from: https://doi.org/10.1016/j.petrol.2018.02.041

Sand failure may result in the production of formation sand at the same time the formation fluids are being produced. This work examines the effects of some commonly used oilfield chemicals, specifically, biocide, corrosion inhibitor and scale inhibi... Read More about Geomechanical effects of oilfield chemicals on sand failure in reservoir rocks..

Investigation of sand transport in an undulated pipe using computational fluid dynamics. (2017)
Journal Article
TEBOWEI, R., HOSSAIN, M., ISLAM, S.Z., DROUBI, M.G. and OLUYEMI, G. 2018. Investigation of sand transport in an undulated pipe using computational fluid dynamics. Journal of petroleum science and engineering [online], 162, pages 747-762. Available from: https://doi.org/10.1016/j.petrol.2017.11.003

A CFD model has been implemented to investigate the effects the pipe undulation on sand transport. Of particular interest of the present study is the sand deposition in small angled V-inclined bend relevant to oil and gas subsea flowlines where sand... Read More about Investigation of sand transport in an undulated pipe using computational fluid dynamics..

Gas-condensate flow modelling for shale gas reservoirs. (2016)
Thesis
LABED, I. 2016. Gas-condensate flow modelling for shale gas reservoirs. Robert Gordon University, PhD thesis.

In the last decade, shale reservoirs emerged as one of the fast growing hydrocarbon resources in the world unlocking vast reserves and reshaping the landscape of the oil and gas global market. Gas-condensate reservoirs represent an important part of... Read More about Gas-condensate flow modelling for shale gas reservoirs..

Computational fluid dynamics (CFD) modelling of critical velocity for sand transport flow regimes in multiphase pipe bends. (2016)
Thesis
TEBOWEI, R. 2016. Computational fluid dynamics (CFD) modelling of critical velocity for sand transport flow regimes in multiphase pipe bends. Robert Gordon University, PhD thesis.

The production and transportation of hydrocarbon fluids in multiphase pipelines could be severely hindered by particulate solids deposit - such as the sand particles that can accompany hydrocarbon production. Knowledge of the flow characteristics of... Read More about Computational fluid dynamics (CFD) modelling of critical velocity for sand transport flow regimes in multiphase pipe bends..

Rate-dependent polymer adsorption in porous media. (2016)
Journal Article
IDAHOSA, P.E.G., OLUYEMI, G.F., OYENEYIN, M.B. and PRABHU, R. 2016. Rate-dependent polymer adsorption in porous media. Journal of petroleum science and engineering [online], 143, pages 65-71. Available from: https://doi.org/10.1016/j.petrol.2016.02.020

Laboratory core flood experiments were conducted at different flow rates with partially hydrolysed polyacrylamide (HPAM) oilfield Enhanced Oil Recovery (EOR) polymer and silica sand to investigate the polymer retention in porous media due to flow rat... Read More about Rate-dependent polymer adsorption in porous media..

Geomechanically coupled modelling of fluid flow partitioning in fractured porous media. (2015)
Thesis
SANAEE, R. 2015. Geomechanically coupled modelling of fluid flow partitioning in fractured porous media. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2048927

Naturally fractured reservoirs are characterised with complex hydro-mechanical dynamics. In these reservoirs, hydrocarbons can be stored and produced from the rock matrix, the fracture network, or both. Normally the fracture network is depleted much... Read More about Geomechanically coupled modelling of fluid flow partitioning in fractured porous media..

Development of formation damage models for oilfield polymers. (2015)
Thesis
IDAHOSA, P.E.G. 2015. Development of formation damage models for oilfield polymers. Robert Gordon University, PhD thesis.

Polymers are among the most important of various oilfield chemicals and are used for a variety of applications in the oil and gas industry (OGI), including: water and gas shutoff; drilling mud viscosity modification; filtration loss control (FLC); sw... Read More about Development of formation damage models for oilfield polymers..

The prospect of deepwater heavy oil production using CO2-EOR. (2015)
Journal Article
TCHAMBAK, E., OYENEYIN, B. and OLUYEMI, G. 2015. The prospect of deepwater heavy oil production using CO2-EOR. Energy sources, part A: recovery, utilization and environmental effects [online], 37(3), pages 318-325. Available from: https://doi.org/10.1080/15567036.2011.585373

The prospect of unconventional oil development has long been coming to offset the rapid decline of conventional crude. And looking ahead, the worry is already turning away from the onshore exploitation to the challenging offshore environment, with th... Read More about The prospect of deepwater heavy oil production using CO2-EOR..

Injection behaviour of fractured reservoirs at near wellbore and far field areas: a CFD study. (2014)
Journal Article
OLUYEMI, G.F., KANIN, L. and NAIR, A. 2014. Injection behaviour of fractured reservoirs at near wellbore and far field areas: a CFD study. International journal of fluid mechanics research [online], 41(6), pages 536-546. Available from: https://doi.org/10.1615/InterJFluidMechRes.v41.i6.60

Flow partitioning in fractured reservoirs especially during injection and production operations poses a great challenge to the optimisation of these important field operations. For example, flow partitioning into the fracture from the matrix may limi... Read More about Injection behaviour of fractured reservoirs at near wellbore and far field areas: a CFD study..

Cold heavy oil production using CO2-EOR technique. (2014)
Thesis
TCHAMBAK, E.N. 2014. Cold heavy oil production using CO2-EOR technique. Robert Gordon University, PhD thesis.

This thesis presents results of a successful simulation study using the CO2-EOR technique to enable production from an offshore heavy oil field, named here as Omega, which is located offshore West Africa at a water depth around 2000 m. The findings a... Read More about Cold heavy oil production using CO2-EOR technique..

Conceptual physicochemical models for scale inhibitor-formation rock interaction. (2013)
Journal Article
OLUYEMI, G.F. 2014. Conceptual physicochemical models for scale inhibitor-formation rock interaction. Petroleum science and technology [online], 32(3), pages 253-260. Available from: https://doi.org/10.1080/10916466.2011.580293

The current oil industry approach to geomechanical evaluation of reservoir formations invaded by chemical inhibitors does not in any way take into consideration any potential effects of these chemicals on the reservoir formation fabrics. It is more o... Read More about Conceptual physicochemical models for scale inhibitor-formation rock interaction..

Chemical inhibitor adsorption and desorption characteristics of common gravel pack sands under static and dynamic conditions. (2013)
Journal Article
OLUYEMI, G.F. 2013. Chemical inhibitor adsorption and desorption characteristics of common gravel pack sands under static and dynamic conditions. Special topics and reviews in porous media: an international journal [online], 4(2), pages 159-169. Available from: https://doi.org/10.1615/specialtopicsrevporousmedia.v4.i2.50

In fields or wells with active programmes of scale and corrosion management via chemical inhibitor injection, the performance of the injected chemical inhibitor species in terms of their adsorption and desorption characteristics is very crucial to th... Read More about Chemical inhibitor adsorption and desorption characteristics of common gravel pack sands under static and dynamic conditions..

Modeling multiphase solid transport velocity in long subsea tiebacks: numerical and experimental methods. (2013)
Thesis
BELLO, K.O. 2013. Modeling multiphase solid transport velocity in long subsea tiebacks: numerical and experimental methods. Robert Gordon University, PhD thesis.

Transportation of unprocessed multiphase reservoir fluids from deep/ultra-deep offshore through a long subsea tieback/pipeline is inevitable. This form of transportation is complex and requires accurate knowledge of critical transport velocity, flow... Read More about Modeling multiphase solid transport velocity in long subsea tiebacks: numerical and experimental methods..

Investigation of CO2 sequestration during cold heavy oil production. (2013)
Journal Article
TCHAMBAK, E., OYENEYIN, B. and OLUYEMI, G. 2013. Investigation of CO2 sequestration during cold heavy oil production. Energy sources, part A: recovery, utilization and environmental effects [online], 35(12), pages 1174-1184. Available from: https://doi.org/10.1080/15567036.2010.520068

CO2 sequestration during cold heavy oil production using captured carbon dioxide was investigated using REVEAL of Petroleum Experts. The results indicated that the CO2 release was influenced by the production phases. The prediction showed high CO2 re... Read More about Investigation of CO2 sequestration during cold heavy oil production..

Intelligent grain size profiling using neural network and application to sanding potential prediction in real time. (2007)
Thesis
OLUYEMI, G.F. 2007. Intelligent grain size profiling using neural network and application to sanding potential prediction in real time. Robert Gordon University, PhD thesis.

Production of hydrocarbon from both consolidated and unconsolidated clastic reservoir rocks poses a risk of sand production especially if a well articulated programme of sand management strategy is not put in place to deal with the problem at the ons... Read More about Intelligent grain size profiling using neural network and application to sanding potential prediction in real time..

Stress effects on flow partitioning in fractured reservoirs: equivalent porous media versus poro-elasticity coupled modeling.
Presentation / Conference Contribution
SANAEE, R., OLUYEMI, G.F., HOSSAIN, M. and OYENEYIN, M.B. 2013. Stress effects on flow partitioning in fractured reservoirs: equivalent porous media versus poro-elasticity coupled modeling. In Pyrak-Nolte, L.J., Morris, J., Chan, A., Rostami, J. and Dershowitz, W. (eds.) Proceedings of the 47th U.S. rock mechanics/geomechanics American Rock Mechanics Association (ARMA) symposium 2013, 23-26 June 2013, San Francisco, USA. Alexandira, VA: American Rock Mechanics Association (ARMA), 3, pages 2329-2337.

In this paper the effects of overburden stress on fracture-matrix flow partitioning were numerically analyzed using two different numerical approaches; the analysis was validated using a fractured Clashach core flood laboratory experimental data. In... Read More about Stress effects on flow partitioning in fractured reservoirs: equivalent porous media versus poro-elasticity coupled modeling..

Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach.
Presentation / Conference Contribution
IDAHOSA, P., OLUYEMI, G., PRABHU, R. and OYENEYIN, B. 2014. Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach. In Proceedings of the 2014 COMSOL conference, 17-19 September 2014, Cambridge, UK. Burlington: COMSOL [online], article ID 18685. Available from: https://www.comsol.com/paper/rheological-behaviour-of-single-phase-non-newtonian-polymer-solution-in-complex--18685

One of the most important criteria for evaluating chemical enhanced oil recovery (EOR) processes that use polymers is its rheological behaviour which in turn account for other physical effects of adsorption and resistance factors during polymer-rock... Read More about Rheological behaviour of single-phase non-Newtonian polymer solution in complex pore geometry: a simulation approach..

Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions.
Presentation / Conference Contribution
WUYEP, E., OLUYEMI, G., YATES, K. and AKISANYA, A. 2019. Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. In Kallel A., Erguler, Z.A., Cui, Z.-D., Karrech, A., Karakus, M., Kulatilake, P. and Shukla, S.K. (eds.) Recent advances in geo-environmental engineering, geomechanics and geotechnics, and geohazards: proceedings of the 1st Springer conference of the Arabian Journal of Geosciences (CAJG-1), 12-15 November 2018, Hammamet, Tunisia. Advances in science, technology and innovation: IEREK interdisciplinary series for sustainable development. Cham: Springer [online], pages 183-185. Available from: https://doi.org/10.1007/978-3-030-01665-4_43

The effects of chemical interaction of a biocide with formation rocks on the rock geomechanical strength were examined. A combination of analytical tests (Scanning Electron Microscopy/Energy-Dispersive X-Ray Analysis-SEM/EDX, X-Ray Powder Diffraction... Read More about Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions..

Dynamic adsorption of residual hydrocarbon oil from treated produced water on chitosan.
Presentation / Conference Contribution
OLUYEMI, G.F. and ARAB, H. 2018. Dynamic adsorption of residual hydrocarbon oil from treated produced water on chitosan. Presented at the 16th TUV SUD NEL produced water workshop 2018, 5-6 June 2018, Aberdeen, UK.

In this work Chitosan was investigated as an adsorbent for residual oil using real produced water stream from Kuwait oilfields. A laboratory bench-top glass tube column integrated with a dynamic flow loop was used in this investigation. Chitosan grai... Read More about Dynamic adsorption of residual hydrocarbon oil from treated produced water on chitosan..

Fuzzy data analysis methodology for the assessment of value of information in the oil and gas industry.
Presentation / Conference Contribution
VILELA, M., OLUYEMI, G. and PETROVSKI, A. 2018. Fuzzy data analysis methodology for the assessment of value of information in the oil and gas industry. In Proceedings of the 2018 IEEE international conference on fuzzy systems (FUZZ-IEEE 2018), 8-13 July 2018, Rio de Janeiro, Brazil. Piscataway, NJ: IEEE [online], article ID 8491628. Available from: https://doi.org/10.1109/FUZZ-IEEE.2018.8491628

To manage uncertainty in reservoir development projects, the Value of Information is one of the main factors on which the decision is based to determine whether it is necessary to acquire additional data. However, subsurface data is not always precis... Read More about Fuzzy data analysis methodology for the assessment of value of information in the oil and gas industry..

Numerical simulation and geological modelling of conceptual fluvial reservoir systems.
Presentation / Conference Contribution
IBRAHIM, K.S., OLUYEMI, G.F. and NZEREM, P. 2021. Numerical simulation and geological modelling of conceptual fluvial reservoir systems. In Proceedings of 1st International conference on multidisciplinary engineering and applied science 2021 (ICMEAS 2021), 15-16 July 2021, Abujua, Nigeria. Piscataway: IEEE [online], article 9692381. Available from: https://doi.org/10.1109/ICMEAS52683.2021.9692381

The development of a fluvial reservoir oil or gas field poses complex challenges in field development strategies during appraisal and exploration stage due to some subsurface uncertainties. In this study, the channel geometries such as straight-chann... Read More about Numerical simulation and geological modelling of conceptual fluvial reservoir systems..