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Oil-based mud waste as a filler material in LDPE composites: evaluation of mechanical properties. (2022)
Journal Article
SIDDIQUE, S., NOVAK, A., GULIYEV, E., YATES, K., LEUNG, P.S. and NJUGUNA, J. 2022. Oil-based mud waste as a filler material in LDPE composites: evaluation of mechanical properties. Polymers [online], 14(7), article 1455. Available from: https://doi.org/10.3390/polym14071455

Traditionally, the drilling waste generated in oil and gas exploration operations, including spent drilling fluid, is disposed of or treated by several methods, including burial pits, landfill sites and various thermal treatments. This study investig... Read More about Oil-based mud waste as a filler material in LDPE composites: evaluation of mechanical properties..

Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation. (2022)
Journal Article
RAMAGE, S.J.F.F., PAGALING, E., HAGHI, R.K., DAWSON, L.A., YATES, K., PRABHU, R., HILLIER, S. and DEVALLA, S. 2022. Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation. Science of the total environment, [online], 831, article 154912. Available from: https://doi.org/10.1016/j.scitotenv.2022.154912

Microplastics (MPs) are present in all environments, and concerns over their possible detrimental effects on flora and fauna have arisen. Density separation (DS) is commonly used to separate MPs from soils to allow MP quantification; however, it freq... Read More about Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation..

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..

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..

Oil-based mud waste reclamation and utilisation in low-density polyethylene composites. (2020)
Journal Article
SIDDIQUE, S., YATES, K., MATTHEWS, K., CSETENYI, L.J. and NJUGUNA, J. 2020. Oil-based mud waste reclamation and utilisation in low-density polyethylene composites. Waste management and research [online], 38(12), pages 1331-1344. Available from: https://doi.org/10.1177/0734242X20941076

Oil-based mud (OBM) waste from the oil and gas exploration industry can be valorised to tailor-made reclaimed clay-reinforced low-density polyethylene (LDPE) nanocomposites. This study aims to fill the information gap in the literature and to provide... Read More about Oil-based mud waste reclamation and utilisation in low-density polyethylene composites..

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..

Structural and thermal degradation behaviour of reclaimed clay nano-reinforced low density polyethylene nanocomposites. (2019)
Journal Article
SIDDIQUE, S., SMITH, G.D., YATES, K., MISHRA, A.K., MATTHEWS, K., CSETENYI, L.J. and NJUGUNA, J. 2019. Structural and thermal degradation behaviour of reclaimed clay nano-reinforced low-density polyethylene nanocomposites. Journal of polymer research [online], 26, article ID 154. Available from: https://doi.org/10.1007/s10965-019-1802-9

In this study, a novel reclaimed clay nanofiller used to manufacture low-density polyethylene (LDPE)/Oil based mud fillers (OBMFs) nanocomposites by a melt compounding process. The mechanical testing samples were manufactured using injection mouldin... Read More about Structural and thermal degradation behaviour of reclaimed clay nano-reinforced low density polyethylene nanocomposites..

Development of a novel photocatalytic reactor for the treatment of polycyclic aromatic hydrocarbons. (2019)
Thesis
GBADAMOSI, T.G. 2019. Development of a novel photocatalytic reactor for the treatment of polycyclic aromatic hydrocarbon. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Water pollution through the discharge of contaminated water into the environment has been a major problem, both to humans and aquatic life. These potential consequences mean that water pollution has therefore received major attention. In industry, a... Read More about Development of a novel photocatalytic reactor for the treatment of polycyclic aromatic hydrocarbons..

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..

Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. (2018)
Thesis
NWINEE, S.A. 2018. Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil. Robert Gordon University, PhD thesis.

Environmental pollution from oilfield drilling waste poses potential hazards which can lead to ecological imbalance. The predominant pollutant from oilfield waste is petroleum hydrocarbons. Some effects of petroleum hydrocarbon contamination in soil... Read More about Sustainable treatment of oil contaminated waste: oil-based mud (OBM) drill cuttings and soil..

The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. (2018)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2019. The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites. Polymer degradation and stability [online], 159, pages 139-152. Available from: https://doi.org/10.1016/j.polymdegradstab.2018.11.004

The crystallinity and thermal degradation behaviours of Polyamide 6/Oil Based Mud Fillers (PA6/OBMFs) nanocomposites have been investigated using DSC and TGA. TGA indicates the onset decomposition temperature of D1/2 (half-decomposition) is 16º C hig... Read More about The crystallinity and thermal degradation behaviour of polyamide 6/oil based mud fillers (PA6/OBMFs) nanocomposites..

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..

Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product. (2018)
Presentation / Conference
SIDDIQUE, S., YATES, K. and NJUGUNA, J. 2018. Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product. Presented at the 6th International conference on sustainable solid waste management (NAXOS 2018), 13-16 June 2018, Naxos, Greece. Athens: National Technical University of Athens [online], paper number 45. Available from: http://uest.ntua.gr/naxos2018/proceedings/pdf/45_NAXOS2018_Siddique_etal.pdf

Waste characterisation is an essential factor in designing sustainable waste management plan. However, waste composition profile is underestimated in oil and gas exploration and production (E&P) industries in the United Kingdom. A three years long in... Read More about Characterisation of oil based mud waste to explore the possibility in transforming waste into a value added product..

Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites. (2018)
Presentation / Conference
SIDDIQUE, S., SMITH, G.D., YATES, K. and NJUGUNA, J. 2018. Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites. Presented at the 4th International conference on structural nano composites (NANOSTRUC 2018), 23-24 May 2018, Berlin, Germany.

Novel low density polyethylene (LDPE)/Oil based mud fillers (OBMF) nanocomposites were manufactured by a melt compounding process. Fourier Transform Infrared (FTIR) Spectroscopy was used to characterise the structure of the nanocomposites. The result... Read More about Mechanical, thermal, and flammability behaviour of low density polyethylene - oil based mud fillers nanocomposites..

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..

Oil based drilling fluid waste: an overview on environmentally persistent pollutants. (2017)
Journal Article
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2016. Oil based drilling fluid waste: an overview on environmentally persistent pollutants. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012008. Available from: https://doi.org/10.1088/1757-899X/195/1/012008

Operational discharges of spent drilling fluid, produced water, and accumulated drill cuttings from oil and gas industry are a continuous point source of environmental pollution. To meet the strict environmental standard for waste disposal, oil and g... Read More about Oil based drilling fluid waste: an overview on environmentally persistent pollutants..

Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. (2016)
Thesis
ADEGBOTOLU, U.V. 2016. Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. Robert Gordon University, PhD thesis.

Spent oil-based drilling fluid and cutting wastes are global liabilities due to their hazardous hydrocarbon content, which impacts negatively on flora, fauna, and global carbon footprint. The formulation of two demulsifiers to ensure chemically-enhan... Read More about Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites..

Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing. (2016)
Presentation / Conference
SIDDIQUE, S., YATES, K. and NJUGUNA, J. 2016. Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing. Presented at the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK.

The increase in thermal stability, flame retardancy, and mechanical properties of Polyamide 6 (PA6)/montmorillonite (MMT) nanocomposites open a new research window in respect to successful technical application of PA6/MMT nanocomposites on the indust... Read More about Thermal stability, flame retardancy and mechanical properties of polyamide/montmorillonite nanocomposites prepared by melt processing..

Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. (2014)
Journal Article
ADEGBOTOLU, U.V., NJUGUNA, J., POLLARD, P. and YATES, K. 2014. Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. IOP conference series: materials science and engineering [online], 64, Article 012023. Available from: https://doi.org/10.1088/1757-899X/64/1/012023

Due to the European Union (EU) waste frame work directive (WFD), legislations have been endorsed in EU member states such as UK for the Recycling of wastes with a vision to prevent and reduce landfilling of waste. Spent oil based drilling mud (drilli... Read More about Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste..