Redefining the petroleum systems of the Browse Basin

Geoscience Australia Data research redefines the petroleum systems of the Browse Basin, a major Australian LNG province. The analysis collates molecular, isotopic, and biomarker datasets for wet gases and crude oils from super-giant accumulations like Ichthys and Brecknock. It defines four distinct petroleum systems based on source rock affinity and hydrocarbon origin, with work ongoing to correlate fluids with their source rocks.

Use Cases

• Modeling hydrocarbon generation and migration based on defined petroleum systems and source rock affinities.
• Correlating oils and gases to their source rocks using molecular and isotopic datasets mentioned in the description.
• Assessing reservoir potential and fluid properties based on described variations in condensate-to-gas ratios and biodegradation.
• Mapping the spatial distribution of petroleum systems within the Caswell Sub-basin and Yampi Shelf.

Strengths

• Analysis includes specific resource estimates for major fields, such as Ichthys (12.8 Tcf gas, 527 mmbbl condensate).
• Defines four distinct petroleum systems with specific geological formations and source characteristics.
• Data appears to be from an authoritative government source, Geoscience Australia Data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Primary data files are in PDF/HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Collation and analysis of existing molecular, isotopic, and biomarker datasets.

Freshness

Last updated 2026-04-30 14:10:56.201447; freshness should be verified.

Geography

Browse Basin, offshore Western Australia Kimberley region, including the Caswell Sub-basin and Yampi Shelf.