Australian Laureate Fellowships - Grant ID: FL130100059
Funder
Australian Research Council
Funding Amount
$3,204,762.00
Summary
New Frontiers in offshore geotechnics: securing Australia's energy future. Offshore gas lies at the heart of Australia's prosperity, with $120 billion of infrastructure under construction, however its future requires new technology to safely build offshore foundations in our weak and problematic soils. This project will provide engineers with science-based tools to unlock the natural gas 'stranded' in our deep oceans.
Development of Leakage Resistant Well-Cements for Geo-Sequestration of Carbon Dioxide Application using Alkali Activated Slag and Geopolymer Cements. The biggest threat facing life now is climate change due to carbon dioxide (CO2) emissions. Extreme weathers are increasing in frequency and intensity, as evidenced by recent bushfires, and it is predicted to get worse unless carbon mitigation strategies are quickly implemented. Geo-sequestration is the technology of capturing and storing of the CO ....Development of Leakage Resistant Well-Cements for Geo-Sequestration of Carbon Dioxide Application using Alkali Activated Slag and Geopolymer Cements. The biggest threat facing life now is climate change due to carbon dioxide (CO2) emissions. Extreme weathers are increasing in frequency and intensity, as evidenced by recent bushfires, and it is predicted to get worse unless carbon mitigation strategies are quickly implemented. Geo-sequestration is the technology of capturing and storing of the CO2 deep below ground for long time (>1000 years). It offers the best hope for large reductions of CO2 emissions. However, CO2-brine stored under pressure is acidic and has the risk of leaking in the long term by dissolving the cement used to seal the pipe wells. This project will develop alternative novel cements which are acid resistant and will not allow CO2 to leak through the sealed wells.Read moreRead less
Building Australia's Offshore Oil and Gas Industry on Solid Foundations: characterising multilayered soils for offshore foundation design. This project aims to characterise soils with multilayers for offshore foundation designs. The commonly used site investigation tools, cone, T-bar and ball penetrometers, will be studied using advanced large deformation finite element analysis and novel centrifuge technics. The outcome of this study will provide guidelines to interpret soil layer information a ....Building Australia's Offshore Oil and Gas Industry on Solid Foundations: characterising multilayered soils for offshore foundation design. This project aims to characterise soils with multilayers for offshore foundation designs. The commonly used site investigation tools, cone, T-bar and ball penetrometers, will be studied using advanced large deformation finite element analysis and novel centrifuge technics. The outcome of this study will provide guidelines to interpret soil layer information and soil design parameters from site investigation data, that is, penetrometers’ penetration resistance profiles. The guidelines will fill the knowledge gap in this area and will provide offshore design engineers with more reliable soil parameters for safer and more economical foundation designs.Read moreRead less
Combined strategies to extinguish underground coal fires and to extract geothermal energy. This project addresses two serious environmental issues that occur worldwide. Firstly, it aims to develop strategies to combat underground coal fires which are a serious environmental problem. It has been estimated that underground coal fires in China alone contribute 2 to 3 per cent of the total world output of carbon dioxide (CO2) from burning fossil fuel. Concentrations of CO2 and CO (carbon monoxide) o ....Combined strategies to extinguish underground coal fires and to extract geothermal energy. This project addresses two serious environmental issues that occur worldwide. Firstly, it aims to develop strategies to combat underground coal fires which are a serious environmental problem. It has been estimated that underground coal fires in China alone contribute 2 to 3 per cent of the total world output of carbon dioxide (CO2) from burning fossil fuel. Concentrations of CO2 and CO (carbon monoxide) of up to 2200 ppm and 1000 ppm, respectively, have been measured in gases produced by underground coal fires. Secondly, the project is a proof of concept to validate the feasibility of production of geothermal energy from burning coal seams. This aspect has the potential to harvest large amounts of geothermal energy which is currently wasted.Read moreRead less
Liquefaction failures of intermediate soils. The aims of the project are to provide new data on the conditions under which liquefaction failures can occur in soil materials that are intermediate between sand and clay, and to develop models to describe this behaviour. This project addresses two significant problems: liquefaction failures which occur in silty sediments on continental slopes and produce tsunamis, and liquefaction in unsaturated ship cargos with intermediate gradings which lead to s ....Liquefaction failures of intermediate soils. The aims of the project are to provide new data on the conditions under which liquefaction failures can occur in soil materials that are intermediate between sand and clay, and to develop models to describe this behaviour. This project addresses two significant problems: liquefaction failures which occur in silty sediments on continental slopes and produce tsunamis, and liquefaction in unsaturated ship cargos with intermediate gradings which lead to ship losses. The outcomes of the project are expected to be greater understanding of the factors controlling liquefaction in silty materials, a better understanding of the risk of submarine landslides, and models which can be used to predict the conditions under which liquefaction can occur in ship cargos.Read moreRead less