Geochemistry of Dew Point Petroleum Systems in Australia's Browse Basin

Australian Ocean Data Network provides a geochemical study of petroleum systems in the Browse Basin, offshore Australia's North West Shelf. The analysis correlates four Mesozoic petroleum systems with gas-prone (dew point) systems based on source rock and fluid geochemistry. The dataset was last updated on 2026-06-23.

Use Cases

• Correlating petroleum systems based on geochemical fingerprints like sterane and triterpane biomarkers mentioned in the description.
• Modeling dew point pressure and condensate-gas ratio (CGR) relationships for light oil exploration in gas-condensate basins.
• Assessing thermal maturity of hydrocarbon accumulations using calculated vitrinite reflectance (Rc) values provided in the study.
• Identifying source rock origins (e.g., terrestrial Plover Formation) through molecular and carbon isotopic signatures of condensates.

Strengths

• Identifies four distinct Mesozoic petroleum systems with geochemical fingerprints.
• Provides specific geochemical metrics, including gas dryness (91%), ideal CGR ranges (7-52 bbl/MMscf), and API gravity (47-53°).
• Includes calculated vitrinite reflectance (Rc) maturity values, such as 0.77% for Crux and 1.18% average for Scott Reef Trend.

Limitations

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

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Likely contains results from combined geochemical studies of source rocks and fluids with petroleum systems analysis.

Freshness

Last updated 2026-06-23 02:01:32.704006; freshness should be verified.

Geography

Browse Basin, offshore Australia's North West Shelf.