Geology and Petroleum Potential of the Bremer Sub-basin, Offshore Southwestern Australia

A 1974 regional seismic survey by Esso Australia Ltd provides the primary subsurface data for this deep-water frontier area. The Bremer Sub-basin study, initiated by Geoscience Australia in 2004, aimed to assess the geological conditions for hydrocarbon generation and trapping. No exploration wells have been drilled in the sub-basin, located in water depths of 100-4000 meters.

Use Cases

• Assessing hydrocarbon trap structures based on identified Middle Jurassic-Early Cretaceous half grabens.
• Evaluating frontier exploration opportunities in deep-water environments based on the sub-basin's geological setting.
• Planning seismic acquisition campaigns based on the lack of subsurface data mentioned in the description.

Strengths

• Includes a regional seismic survey from 1974, providing foundational geophysical data.
• Focuses on a defined deep-water frontier area with water depths ranging from 100 to 4000 meters.
• Associated with a formal study program (Geoscience Australia's New Oil Program) initiated in 2004.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified; the last metadata update is dated 2026-06-16.

Provenance

Source

Australian Ocean Data Network

Collection Method

Regional seismic survey and geological study.

Time Range

Study commenced in 2004; primary seismic data from 1974.

Freshness

Last updated 2026-06-16 23:34:11.372793; freshness should be verified.

Geography

Bremer Sub-basin, part of the Bight Basin offshore southwestern Australia.