Browse Basin Petroleum Systems with Gas and Condensate Reserve Estimates

The Browse Basin offshore Western Australia hosts major gas and condensate reserves, including the super-giant Ichthys accumulation with 12.8 trillion cubic feet of gas and 527 million barrels of condensate. The dataset, updated on 2026-06-23, collates molecular, isotopic, and biomarker data to redefine four distinct petroleum systems within the basin. This work was contributed by the Australian Ocean Data Network.

Use Cases

• Modeling gas and condensate reserve distributions based on the described accumulation volumes and condensate-gas ratios.
• Classifying petroleum systems based on isotopic profiles and biomarker data mentioned in the description.
• Analyzing source rock affinity and organic matter type for the defined Plover-Plover and Echuca Shoals-Heywood systems.
• Assessing biodegradation and recharge effects in oil and gas accumulations like Cornea and Gwydion.

Strengths

• Includes specific reserve estimates for major accumulations, such as 12.8 Tcf gas and 527 mmbbl condensate at Ichthys.
• Defines four distinct petroleum systems with described source rock and reservoir characteristics.
• Collates multiple data types including molecular, isotopic, and biomarker datasets.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Collation of existing molecular, isotopic, and biomarker datasets from prior research.

Time Range

Likely covers geological time scales and recent exploration data up to the date of publication.

Freshness

Last updated 2026-06 23 05:36:16.857734; freshness should be verified.

Geography

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