Regional Context

The Bremer Sub-basin, is a deep-water frontier area for petroleum exploration. No wells have been drilled to test the sub-basin’s petroleum potential, with company exploration limited to a regional seismic survey by Esso Australia Ltd. in 1974. Early studies identified the Bremer Sub-basin as a series of Middle Jurassic–Early Cretaceous half graben, which contain potentially prospective structures for trapping hydrocarbons.

Regional insights and the development of new tools and technology have sparked renewed interest in this area.

Available Datasets

Seismic and geo spatial datasets:

• 2004 Southwest Frontiers (S280) 2D seismic

• 2009 2D seismic survey (Arcadia Petroleum)

• 2004 AGSO MS 265 2D Bathymetry survey

• 1974 2D seismic survey (Esso)

• 1972 Aeromagnetic survey (Esso)

Software Provided

• ArcGIS

• Kingdom Suite

Project Goal

The explorer is expected to assess the prospectivity of the basin through interpretation and integration of the available datasets, with the goal to:

1. Understand charge potential in basin and build annotated Charge Play Map

2. Complete play maps for remaining elements

3. Identify potential leads and prospects including estimate of risk and resources

Deliverables

• Literature and legacy data review

• Seismic interpretation focused on charge identification, incl. e.g.,:

  • Regional 'hero' line with mega-sequences

  • Isochores/isopachs

  • Structure maps

• Prelim. play analysis focused on charge identification, incl. e.g.,:

  • Charge Play Element map

  • Timing and migration routes

  • Play cartoon

• Play analysis incl.:

  • Detailed Play Cartoon

  • Structural domains element map

  • Play Element map

  • Petroleum Syst. Events Chart

• One prospect/lead concept mapped in time and depth including:

  • Migration, reservoir, trap and seal

  • Risks and order-of-magnitude volume assessment