Selective wellbore coatings to control fines damage in coal seam gas wells. This project aims to develop a completely new approach to control solids production in coal seam gas wellbores using a selective phase-inversion polymer coating. The approach will take advantage of the low permeability of mudrocks to form a protective barrier across clay-rich layers while remaining permeable across the gas-producing coal seams. The production of fine solids is a key technical issue affecting the producti ....Selective wellbore coatings to control fines damage in coal seam gas wells. This project aims to develop a completely new approach to control solids production in coal seam gas wellbores using a selective phase-inversion polymer coating. The approach will take advantage of the low permeability of mudrocks to form a protective barrier across clay-rich layers while remaining permeable across the gas-producing coal seams. The production of fine solids is a key technical issue affecting the productivity of coal seam gas wells in Queensland, and leads to 10-15 days’ production downtime a year. The expected outcomes of the project include fundamental understanding of the solids breakage phenomena, a predictive tool to classify potential solids risks in coal seam gas wells, and a novel rock-selective wellbore coating technology to control solids production. The potential economic impacts from the project are lower gas production costs and improved gas supply security.Read moreRead less
Particle-scale modelling of particle-fluid flows in gas and oil extraction. Particle-scale modelling of particle-fluid flows in gas and oil extraction. This project aims to develop a particle scale model to study the pipeline transport of petroleum fluids. It will use a combined theoretical and experimental program, involving state-of-the-art discrete element modelling and simulation techniques, to describe the complex particle-fluid flow and erosion of pipeline transport in gas and oil extracti ....Particle-scale modelling of particle-fluid flows in gas and oil extraction. Particle-scale modelling of particle-fluid flows in gas and oil extraction. This project aims to develop a particle scale model to study the pipeline transport of petroleum fluids. It will use a combined theoretical and experimental program, involving state-of-the-art discrete element modelling and simulation techniques, to describe the complex particle-fluid flow and erosion of pipeline transport in gas and oil extraction, quantify the effects of key variables, and formulate strategies for optimum process control under different conditions. The research outcomes are expected to be useful for the process control of pipeline transport in Australia’s important petroleum and energy-related industries.Read moreRead less
Shale rock characterisation using Nuclear Magnetic Resonance. This project aims to assess the viability of potential shale oil and gas reserves, using Nuclear Magnetic Resonance (NMR) core analysis and well logging techniques to characterise shale samples. Shale oil and gas reserves have the potential to provide a rapidly dispatchable energy source, which could play a key role as a transition fuel to renewable energy. The project will develop techniques to deliver quantitative fluid typing, prod ....Shale rock characterisation using Nuclear Magnetic Resonance. This project aims to assess the viability of potential shale oil and gas reserves, using Nuclear Magnetic Resonance (NMR) core analysis and well logging techniques to characterise shale samples. Shale oil and gas reserves have the potential to provide a rapidly dispatchable energy source, which could play a key role as a transition fuel to renewable energy. The project will develop techniques to deliver quantitative fluid typing, producible porosity, pore sizes and permeability measurements for shale samples, which could be used in the shale gas and oil industry. These techniques will improve the predictability of shale field developments that better inform their economic and environmental impact.
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Microstructure characteristics to structural performance: the missing link in geopolymers. Geothermal energy from the deep earth's heat is emissions-free and renewable. Cements often fail in geothermal wells due to extreme temperature cycles. Alternative new geopolymer cements will be studied for trouble-free geothermal operations. Knowledge gained will also add confidence to the use of geopolymer in general construction.
New nanotechnology controlling wettability in unconventional gas reservoirs. This project aims to develop new nanoparticle technologies to change rock wettability and significantly increase gas production from shale and coal seam gas fields. The project plans to use a unique combination of new theoretical models for suspension transport in fractures and innovative mathematical modelling supported by laboratory studies and validated against field results, to test and develop the new strategies fo ....New nanotechnology controlling wettability in unconventional gas reservoirs. This project aims to develop new nanoparticle technologies to change rock wettability and significantly increase gas production from shale and coal seam gas fields. The project plans to use a unique combination of new theoretical models for suspension transport in fractures and innovative mathematical modelling supported by laboratory studies and validated against field results, to test and develop the new strategies for Australian gas fields. The project is expected to improve understanding of complex physical phenomena associated with natural gas production and to deliver economic benefit to the Australian gas industry.Read moreRead less
Controlling hydrate slurry flow to enable deepwater oil and gas production. This project aims to investigate the plugging of hydrate slurries in pipelines to determine under what conditions they will flow satisfactorily without forming a blockage. Hydrate blockages are expensive and hazardous occurrences in oil and gas operations, so current prevention systems aim to avoid hydrate formation altogether through over-design. These over-designed hydrate prevention systems are extremely expensive to ....Controlling hydrate slurry flow to enable deepwater oil and gas production. This project aims to investigate the plugging of hydrate slurries in pipelines to determine under what conditions they will flow satisfactorily without forming a blockage. Hydrate blockages are expensive and hazardous occurrences in oil and gas operations, so current prevention systems aim to avoid hydrate formation altogether through over-design. These over-designed hydrate prevention systems are extremely expensive to build and costly to run during the operations phase. The project intends to examine the behaviour of hydrate slurry flow as a function of the oil's properties, amount of water and degree of turbulence. Outcomes are intended to be a sophisticated approach to avoiding hydrate blockages that is safe but more efficient and less costly.Read moreRead less
Investigation of alternative footing shapes to mitigate instabilities during installation of offshore drilling platforms. Spudcan footings are used to support three legged mobile drilling rigs, exploring and extracting oil and gas in water depths of up to 150 metres. Despite efforts by the industry to minimise the risks during rig installation, punch-through incidents (i.e. unexpected rapid penetration of the footings) and bending of the leg whilst installing the spudcan next to a footprint (poc ....Investigation of alternative footing shapes to mitigate instabilities during installation of offshore drilling platforms. Spudcan footings are used to support three legged mobile drilling rigs, exploring and extracting oil and gas in water depths of up to 150 metres. Despite efforts by the industry to minimise the risks during rig installation, punch-through incidents (i.e. unexpected rapid penetration of the footings) and bending of the leg whilst installing the spudcan next to a footprint (pockmark from previous rig installation) continue to occur at an increasing rate, causing economic loss of $5 to50 million per incident. Combining advanced physical and numerical modelling, this project aims to develop optimised spudcan shapes, and corresponding design approaches and guidelines, to mitigate these risks, ensuring safe installation of rigs in hazardous regions.Read moreRead less
Estimation of spudcan penetration resistance in stratified soils directly from field penetrometer data and quantification of punch-through risk. Foundations for mobile drilling rigs exhibit significant failure rate in the offshore oil and gas industry, which contributes $22 billion annually to the Australian economy. The project will develop a robust design approach for these foundations, based on field penetrometer data and accounting for the highly stratified nature of offshore sediments.
Hydrodynamic forces on small diameter pipelines laid on natural seabed. This project aims to improve predictions of hydrodynamic forces on small submarine cables and pipelines through comprehensive experimental modelling at 1:1 scale coupled with development of predictive numerical models. The focus will be on forces in unsteady flows. Present industry guidelines do not make allowance for potential reductions in forces for small diameter pipelines whose diameters are a similar length to the effe ....Hydrodynamic forces on small diameter pipelines laid on natural seabed. This project aims to improve predictions of hydrodynamic forces on small submarine cables and pipelines through comprehensive experimental modelling at 1:1 scale coupled with development of predictive numerical models. The focus will be on forces in unsteady flows. Present industry guidelines do not make allowance for potential reductions in forces for small diameter pipelines whose diameters are a similar length to the effective seabed boundary layer, thereby leading to overly conservative and costly stability design. Results from the experimental program and numerical model developed are expected to be used to improve the current industry design guidelines.Read moreRead less
Salty gas: the ecological risk of saline effluents from coal seam gas and other hydrocarbon resources. The objective of this project is to predict the effect of saline water produced from coal and coal seam gas extraction activities on freshwater systems. The findings will assist decisions on whether to permit discharge of such waste water, and if permitted under what conditions (e.g. water quality criteria) so as to prevent environment damage.