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  • Petroleum Blocks cut to the AMB 2014a epoch. The service contains the Blocks as defined under Section 33 (3) of the Offshore Petroleum and Greenhouse Gas Storage Act 2006. Coverage includes indicative areas of coastal waters and land, within the constitutional limits of the States and territories.

  • Petroleum Blocks cut to the AMB 2014a epoch. The service contains the Blocks as defined under Section 33 (3) of the Offshore Petroleum and Greenhouse Gas Storage Act 2006. Coverage includes indicative areas of coastal waters and land, within the constitutional limits of the States and territories.

  • Petroleum Blocks cut to the AMB 2014a epoch. The service contains the Blocks as defined under Section 33 (3) of the Offshore Petroleum and Greenhouse Gas Storage Act 2006. Coverage includes indicative areas of coastal waters and land, within the constitutional limits of the States and territories.

  • Petroleum Blocks cut to the AMB 2014a epoch. The service contains the Blocks as defined under Section 33 (3) of the Offshore Petroleum and Greenhouse Gas Storage Act 2006. Coverage includes indicative areas of coastal waters and land, within the constitutional limits of the States and territories.

  • As part of the four-year National CO2 Infrastructure Plan (NCIP), Geoscience Australia conducted a CO2 storage capacity assessment and pre-competitive data acquisition program in the offshore Gippsland Basin. This study was undertaken, in collaboration with CSIRO, to accelerate the identification of suitable long term CO2 storage sites for the development of CO2 storage infrastructure near the sources of major energy and production emissions in the Gippsland region in Victoria.

  • Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Wiluna_Gravity_Survey_P201660_CSCBA267G.nc grid is a complete spherical cap Bouguer anomaly grid for the Wiluna Gravity survey. This gravity survey was acquired under the project No. 201660 for the geological survey of WA. The grid has a cell size of 0.00759589 degrees (approximately 800m). A total of 4455 gravity stations were acquired to produce this grid.

  • Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This NTGS_Daly_Basin_Gravity_P201680_SCBA267GUVD.nc grid is a first vertical derivative of the Bouguer anomaly grid for the Daly Basin Gravity Survey 2016 survey. This gravity survey was acquired under the project No. 201680 for the geological survey of NT. The grid has a cell size of 0.00731755 degrees (approximately 800m). A total of 2271 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

  • An important part of the management of Australia's marine resources is mapping the geology beneath the sea floor; as part of this work we must understand and mitigate associated environmental impacts. This multimedia product provides background information on marine seismic surveys and the environment, as well as Geoscience Australia's role in environmental mitigation and research. For further information visit http://www.ga.gov.au/about/projects/m.... About the data visualisation: The visualisation of the seismic survey process is representative of a seismic survey, and does not represent any particular survey performed by a particular party. It is not to scale, and is only intended to convey the basic concepts of marine seismic surveys. Production credits: Script: Robin Swindell, Neil Caldwell, Chantelle Farrar, Andrew Carroll, Rachel Przeslawski Production Management: Chantelle Farrar, Neil Caldwell Edit, Cinematography, Sound: Michael O'Rourke 3D Data Visualisation, Animation: Neil Caldwell, Julie Silec Broadcast Design: Julie Silec Scientific Advice: Andrew Carroll, Rachel Przeslawski, Merrie-Ellen Gunning http://www.ga.gov.au Category Science & Technology License Creative Commons Attribution license (reuse allowed)

  • Geoscience Australia undertook a regional assessment of the geological CO2 storage potential of the Browse Basin, offshore northwest Australia, between 2013 and 2015 as part of the Australian Government's National CO2 Infrastructure Plan (NCIP). The NCIP program aimed to accelerate identification and development of suitable areas within Australia for long-term CO2 storage proximal to major emission sources. The Browse Basin was selected with two other offshore sedimentary basins and several onshore basins for pre-competitive data acquisition and geological studies under the NCIP funding. The basin is a proven hydrocarbon province that hosts significant reserves of gas and condensate, with the majority of accumulations being characterised by high concentrations of CO2. This study implemented an integrated approach in assessing CO2 storage potential in the context of remaining hydrocarbon prospectivity, in light of the numerous existing hydrocarbon discoveries and a high probability of undiscovered accumulations within the basin. Potential CO2 storage plays were assessed for the likelihood of conflict with exploration for, and access to, existing and remaining hydrocarbon resources in within the basin. As the bulk of discovered, commercial hydrocarbon accumulations are hosted within the Jurassic and the lowermost Cretaceous successions, the study focused on the Cretaceous succession where there is a reduced risk of conflict between CO2 storage and hydrocarbon exploration (Jurassic and Lower Cretaceous units). The data used for this study include information from over 60 wells, regional 2D and 3D seismic reflection surveys, potential field data, as well as existing and newly acquired pre-competitive geochemical, aeromagnetic and marine environmental data. A key part of this work was an update to regional-scale structure of the basin, including deep faults associated with PermianCretaceous rifting events, and inversion and recent faulting associated with the Cenozoic collision between Australia and Asia. Another focus of the study was an update to the Cretaceous sequence stratigraphy across the basin. A play fairway mapping approach using the revised tectonostratigraphic framework was applied to assess, identify, risk and high-grade areas for their potential suitability for geological storage of CO2. The main constraints for geologic CO2 storage and containment analysed in this study, other than the distribution of reservoirs, seals and reservoir'seal pairs, were reservoir depth range, fault distribution, and hydrocarbon resource conflicts. Common risk element maps were produced for each supersequence through the overlay of mapped constraints (or risk elements) with the play fairway mapping, thus enabling the high-grading of potential CO2 storage play fairways. The results indicate that the Lower Cretaceous basin margin plays and the Upper Cretaceous (early Campanian) confined submarine fan play are potentially more prospective for CO2 storage. However, these plays are subject to potential resource conflict from up-dip migration of hydrocarbons from Cretaceous and older source rock units in the basin depocentres. This major risk requires further assessment for the high-graded priority areas identified in this study. This study provides a revised basin framework and a regional-scale preliminary prospectivity assessment for the geological storage of CO2 in the Browse Basin. The results will guide future, targeted, site-specific assessments, and identify the main geologic risks warranting more detailed investigation. The study findings will also assist in reducing the risk of conflict between CO2 storage and exploration and utilisation of hydrocarbon resources, as well as in identifying new opportunities in these activities.

  • This report is a partial update of the national assessment series of Australia's energy resources, which was first released in 2010. This interim release provides an overview of Australia's identified and potential fossil energy resources: oil, gas, coal, uranium and thorium. It focuses on resource quantities. A full updated version of AERA will be released in December 2016. It will add hydro, solar, wind, geothermal, bioenergy and ocean energy in conjunction with the Australian Renewable Energy Agency, along with energy resource market information from the Office of Chief Economist. AERA provides the crucial information and data for comparing energy commodities and reviewing resources available in Australia and the world. In turn, this information can be used while considering resources and energy policies.