All Outputs (6)

Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film. (2022)
Thesis
OKPOZO, O.P. 2022. Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1987909

Patterning plays a vital in role in sensor-based devices like surface-enhanced Raman spectroscopy (SERS), surface-enhanced infrared absorption (SEIRA), radio frequency (RF) antennas and many others. The linear array spacing and width of gold strips h... Read More about Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film..

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..

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..

Stuck pipe prediction in deviated wellbores: a numerical and statistical analysis. (2022)
Thesis
EGBE, P.I. 2022. Stuck pipe prediction in deviated wellbores: a numerical and statistical analysis. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2071873

Due to the significant non-productive times and recovery costs associated with stuck pipe events in oil and gas drilling operations, there is value in being able to predict an impending stuck pipe event. To achieve this, the use of numerical cuttings... Read More about Stuck pipe prediction in deviated wellbores: a numerical and statistical analysis..

Analysis of the performance challenges affecting state-owned refineries in Nigeria: a systems thinking approach. (2022)
Thesis
IHEUKWUMERE, O.E. 2022. Analysis of the performance challenges affecting state-owned refineries in Nigeria: a systems thinking approach. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1712811

This research aimed to understand how the significant factors that lead to performance challenges across Nigeria's state-owned refineries operationalise to drive their sub-optimal performance. As such, unlike previous studies, this thesis proposed to... Read More about Analysis of the performance challenges affecting state-owned refineries in Nigeria: a systems thinking approach..

Design and analysis of non-threaded drill pipe connector. (2022)
Thesis
THAKUR, J.O. 2022. Design and analysis of non-threaded drill pipe connector. Robert Gordon University, MRes thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2271554

This thesis determines the feasibility and application opportunities of a Snap-Latch Ring design based on the Pin and Box non-threaded connectors design. Modern drill pipes are connected by rotary threaded shouldered connections that have been prone... Read More about Design and analysis of non-threaded drill pipe connector..