Deep Penetrating Anchors - a cost effective anchoring solution for mooring oil and gas facilities in deep water. The offshore oil and gas industry is currently directing considerable research efforts towards the development of cost-effective anchoring solutions suitable for mooring floating installations in deep water. This project aims to enhance the limited understanding of the Deep Penetrating Anchor (DPA), which has been identified as having the most potential to meet industry demands as it ....Deep Penetrating Anchors - a cost effective anchoring solution for mooring oil and gas facilities in deep water. The offshore oil and gas industry is currently directing considerable research efforts towards the development of cost-effective anchoring solutions suitable for mooring floating installations in deep water. This project aims to enhance the limited understanding of the Deep Penetrating Anchor (DPA), which has been identified as having the most potential to meet industry demands as it extends the current water depth limit of 2000 metres. Successful completion of this project will result in a DPA experimental database that will not only form the basis for predicting anchor performance, but will also serve as a means of validating robust and versatile design tools that can be used in offshore engineering practice.Read moreRead less
A novel foundation to extend the operation of mobile structures into deeper water. Oil and gas is a key industry in Australia, contributing A$17 billion to the economy. However, with the large accessible reserves in shallower waters becoming exhausted, Australian oil and gas companies require new technologies to extend their capabilities. The research in this proposal addresses this concern, providing an extension of the operational depth range of mobile jack-up platforms from 120 to 200 m. This ....A novel foundation to extend the operation of mobile structures into deeper water. Oil and gas is a key industry in Australia, contributing A$17 billion to the economy. However, with the large accessible reserves in shallower waters becoming exhausted, Australian oil and gas companies require new technologies to extend their capabilities. The research in this proposal addresses this concern, providing an extension of the operational depth range of mobile jack-up platforms from 120 to 200 m. This creates the opportunity to develop the significant number of Australia's smaller gas fields that are currently uneconomical to exploit. The proposed project will contribute to the future competitiveness of Australia's oil and gas industry and ensuring energy supply for the sustained growth of the Australian economy.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
On-Bottom Stability of Large Diameter Submarine Pipelines. Offshore oil and gas extraction contributes approximately $17 billion annually to Australian economy. As the extraction activities increase, the length of pipelines being installed in Australian waters increases exponentially. The typical cost of a large diameter pipeline on the North West Shelf (NWS) of Australia is approximately $4.5 million/km. On-bottom stabilisation measures account for approximately 30% of the total cost. It is exp ....On-Bottom Stability of Large Diameter Submarine Pipelines. Offshore oil and gas extraction contributes approximately $17 billion annually to Australian economy. As the extraction activities increase, the length of pipelines being installed in Australian waters increases exponentially. The typical cost of a large diameter pipeline on the North West Shelf (NWS) of Australia is approximately $4.5 million/km. On-bottom stabilisation measures account for approximately 30% of the total cost. It is expected that the outcomes of this project will enable significant cost savings for the new projects currently being developed such as Pluto, Browse, Sunrise and Greater Gorgon, and will provide the scientific evidence that will underpin the life extension reviews of existing trunklines.Read moreRead less
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.
Vulnerability mapping of hazards and economic loss assessment of offshore oil and gas platforms subject to accidental explosion and fires. In Australia, up to 100 offshore oil and gas wells per year are drilled, but fire and explosion are a risk. This project develops vulnerability maps of offshore platforms subjected to accidental explosions, so that economic loss, environmental and social impact can be effectively assessed based on these factors and mitigation measures can be introduced.