Bonaparte CO2 Storage Project

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Figure 1: Location map showing
study region.

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Figure 2: CO2 storage potential
of the eastern flank of the
Petrel Sub-basin.

A study of the Petrel Sub-basin (Bonaparte Basin), offshore Northern Territory (Figure 1), has found that the sub-basin is suitable for the geological storage of CO2 (Figure 2). The study, which was funded through the National Low Emissions Coal Initiative, targeted the Petrel Sub-basin because of its proximity to emission intensive industries and favourable geology for potential geological CO2 storage. Geological and geophysical analysis identified two saline reservoir-seal pairs that have a total effective CO2 storage capacity of 15.9 gigatonnes (300 trillion cubic feet).

The study report Regional assessment of the CO2 storage potential of the Mesozoic succession in the Petrel Sub-basin, Northern Territory, Australia: summary report. Record 2014/11 summarises the results of the analysis, and contains supporting appendices, 18 well composites and data packages.

Data Packages

Data packages from the study can also be ordered. These comprise the following:

Petrel Sub-basin Seismic Survey (GA336): High resolution multichannel seismic data were acquired between 3 May and 24 June 2012 by the MV Duke (Figure 3). The seismic data have been processed to enhance the stratigraphy in the shallower (<1000 m below sea floor) formations. Seismic and associated datasets are available for download and include:

Petrel Sub-basin Marine Survey (GA335): The marine survey, conducted in collaboration with the Australian Institute of Marine Science (AIMS), was completed in May 2012 (Figure 4). A post-survey report is available for download and supporting datasets include:

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Figure 3: Map showing the location
of seismic data and supporting
seabed data. Also shown is the
location of the geological model
(focus study area, in grey) and
simulation model (model area,
in blue).

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Figure 4: Images from marine
survey SOL5463.

  • 5300 line kilometres of multibeam swath bathymetry
  • 655 line kilometres of sub-bottom profiler data
  • Underwater video and still images
  • Seabed sediment and biological samples

Petrel Sub-basin geological data package: A series of datasets were acquired to support the findings published in the Geoscience Australia Record 2014/11.

  • ArcGIS packages
  • Mineralogical, petrophysical and pore properties analysis
  • Hydrodynamic analysis
  • Geological and simulation model data

Topic contact: ghg@ga.gov.au Last updated: April 22, 2014