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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. (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..

Experimental investigation of the effect of temperature on two-phase oil-water relative permeability. [Dataset] (2021)
Dataset
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].

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..

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..

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..

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..

Sand failure: effect of biocide on the geomechanical properties of outcrop carbonate rock under static conditions. (2018)
Conference Proceeding
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..

Petroleum production: polymers in. (2018)
Book Chapter
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)..