Offshore Northern Perth Basin Petroleum Systems Reassessment

Geoscience Australia conducted a review of source rock and oil geochemical data for the offshore northern Perth Basin. The work supports the release of exploration blocks W13-19 and W13-20 and includes data from 6 wells in the Abrolhos and Houtman Sub-basins. The dataset was last updated on 2026-06-05.

Use Cases

• Modeling petroleum system extent based on geochemical typing of the Hovea Member source rock.
• Assessing exploration prospectivity for blocks W13-19 and W13-20 based on integrated geochemical data.
• Correlating onshore and offshore petroleum systems based on evidence from the Cliff Head oil discovery.

Strengths

• Includes data from 6 specific wells (Cliff Head-1, Frankland-1, Perseverance-1, Dunsborough-1, Houtman-1, and 5 from Wittecarra Terrace).
• Supports a major integrated study aimed at reassessing the basin's prospectivity.
• Covers two major exploration blocks (W13-19 and W13-20) straddling multiple sub-basins.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on a specific Australian basin.

Provenance

Source

Australian Ocean Data Network, likely originating from Geoscience Australia.

Collection Method

A review of source rock and oil geochemical data as part of an integrated study.

Freshness

Last updated 2026-06-05 06:47:06.128071; freshness should be verified.

Geography

Offshore northern Perth Basin, specifically the Houtman, Abrolhos, Zeewyck, and Gascoyne Sub-basins.