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

Four Mesozoic petroleum systems are identified by their geochemical fingerprints, correlating with gas-prone dew point systems. The data includes geochemical properties such as gas dryness (91%), condensate-gas ratios (7-52 bbl/MMscf), and API gravity (47-53°). This dataset is provided by the Australian Ocean Data Network and was last updated in April 2026.

Use Cases

• Classifying petroleum system families based on biomarker assemblages and carbon isotopic signatures described in the report.
• Modeling dew point pressure relationships using reported condensate-gas ratio (CGR) and fluid composition data.
• Assessing source rock maturity and origin for hydrocarbon exploration based on calculated vitrinite reflectance (Rc) values.
• Correlating fluids from different accumulations (e.g., Scott Reef Trend, Crux) using their molecular and isotopic signatures.

Strengths

• Includes specific geochemical measurements: gas dryness (91%), ideal CGRs (7-52 bbl/MMscf), and API gravity (47-53°).
• Identifies four distinct petroleum systems with geochemical fingerprints, providing a structured classification.
• Reports calculated thermal maturity metrics, such as vitrinite reflectance (Rc) values ranging from 0.77% to 1.18%.

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

Collection Method

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

Time Range

Mesozoic era (geological time).

Freshness

Last updated 2026-04-16 08:13:47.506047; freshness should be verified.

Geography

Browse Basin, offshore Australia's North West Shelf.