All Outputs (17)

Predicting hydrates plugging risk in subsea gas pipeline: CFD, analytical and linear regression modelling. (2024)
Thesis
UMUTEME, O.M. 2024. Predicting hydrates plugging risk in subsea gas pipeline: CFD, analytical and linear regression modelling. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2571400

This study addresses critical limitations in managing hydrate plugging risk for gas pipelines. The main challenges lie in accurately predicting hydrate deposition rates and associated pressure drops. To overcome these limitations, the study developed... Read More about Predicting hydrates plugging risk in subsea gas pipeline: CFD, analytical and linear regression modelling..

Caprock integrity evaluation for geosequestration of CO2 in depleted petroleum reservoirs. (2024)
Thesis
AMINAHO, E.N. 2024. Caprock integrity evaluation for geosequestration of CO2 in depleted petroleum reservoirs. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2445726

The geological storage of carbon dioxide (CO2), also referred to as CO2 geosequestration, represents one of the most promising options for reducing greenhouse gases in the atmosphere. However, sometimes CO2 is captured with small amounts of other ind... Read More about Caprock integrity evaluation for geosequestration of CO2 in depleted petroleum reservoirs..

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..

Numerical simulation of fluid flow, proppant transport and fracture propagation in hydraulic fractures for unconventional reservoirs. (2020)
Thesis
SURI, Y. 2020. Numerical simulation of fluid flow, proppant transport and fracture propagation in hydraulic fractures for unconventional reservoirs. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://openair.rgu.ac.uk

The distribution of proppant injected in hydraulic fractures significantly affects fracture-conductivity and well-performance. The proppant transport and suspension in thin fracturing fluid used in unconventional reservoirs are considerably differe... Read More about Numerical simulation of fluid flow, proppant transport and fracture propagation in hydraulic fractures for unconventional reservoirs..

Laser induced fractures in porous media. (2020)
Thesis
MOSTAFA, A. 2020. Laser induced fractures in porous media. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2271539

Hydraulic fracturing is the most effective technique to enhance well productivity in the oil and gas industry. There are many logistical, operational and environmental concerns associated with existing techniques, including the potential risk of unde... Read More about Laser induced fractures in porous media..

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..

Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. (2020)
Thesis
ADEWOYE, A.J. 2020. Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1357822

Hydrocyclone is used to separate particles from produced water. It can be used in different industries, including oil and gas, water treatment and pharmaceutical (among others). The hydrocyclone can effectively separate particles larger than 10μm, bu... Read More about Improvement to hydrocyclone used in separating particles from produced water in the oil and gas industry..

CFD modelling of flow-induced vibration under multiphase flow regimes. (2020)
Thesis
ASIEGBU, N.M. 2020. CFD modelling of flow-induced vibration under multiphase flow regimes. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Internal multiphase flow-induced vibration (MFIV) in pipe bends poses serious problems in oil and gas, nuclear and chemical flow systems. The problems include: high amplitude displacement of the pipe structure due to resonance; fatigue failure due to... Read More about CFD modelling of flow-induced vibration under multiphase flow regimes..

CFD modelling of pipe erosion under multiphase flow regimes. (2020)
Thesis
OGUNSESAN, O.A. 2020. CFD modelling of pipe erosion under multiphase flow regimes. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Pipe erosion due to sand transport can have an adverse effect on the production efficiency of pipe-lines and other related flow systems. Proper knowledge of the flow characteristics, particle behaviour and geometric effects is very important in the a... Read More about CFD modelling of pipe erosion under multiphase flow regimes..

Computational fluid dynamics modelling of pipeline on-bottom stability. (2017)
Thesis
IYALLA, I. 2017. Computational fluid dynamics modelling of pipeline on-bottom stability. Robert Gordon University, PhD thesis.

Subsea pipelines are subjected to wave and steady current loads which cause pipeline stability problems. Current knowledge and understanding on the pipeline on-bottom stability is based on the research programmes from the 1980s such as the Pipeline S... Read More about Computational fluid dynamics modelling of pipeline on-bottom stability..

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..

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..

Optimisation of Mare's Tail coalescer technology. (2014)
Thesis
VIJAYAKUMAR, B. 2014. Optimisation of Mare's Tail coalescer technology. Robert Gordon University, MPhil thesis.

The Mare's Tail technology was invented in ERT (Orkney) as a joint industrial project to reduce the use of chemicals in the produced water treatment process. The Mare's Tail is a fibrous type of coalescer used in the coalescence of oil droplets that... Read More about Optimisation of Mare's Tail coalescer technology..

Computational fluid dynamics modelling of PEM fuel cells to investigate transport limitations. (2012)
Thesis
ISLAM, S.Z. 2012. Computational fluid dynamics modelling of PEM fuel cells to investigate transport limitations. Robert Gordon University, PhD thesis.

Modern technological advancements in our lifestyle have caused a significant increase in the consumption of energy. With this growing demand, people are more concerned about the rational use of existing limited energy and searching for alternative fo... Read More about Computational fluid dynamics modelling of PEM fuel cells to investigate transport limitations..

The applicability of aerodynamic models to tidal turbines. (2012)
Thesis
TURNER, N. 2012. The applicability of aerodynamic models to tidal turbines. Robert Gordon University, PhD thesis.

For the tidal current power industry to progress, simple models for predicting the performance of tidal current turbines are needed. Currently the aerodynamic models developed for wind turbines are typically used to predict tidal turbine performance.... Read More about The applicability of aerodynamic models to tidal turbines..

Scale effects in testing of a monopile support structure submerged in tidal currents. (2011)
Thesis
OKORIE, O.P. 2011. Scale effects in testing of a monopile support structure submerged in tidal currents. Robert Gordon University, PhD thesis.

Climate change and energy security are key issues motivating the development of Tidal Current Energy (TCE) technology. Small scale model testing of TCE devices is a major challenge facing the technology due to turbulent flow in tidal currents environ... Read More about Scale effects in testing of a monopile support structure submerged in tidal currents..