Browse Basin Petroleum Fluid Geochemistry for Source Correlation

Geoscience Australia data from a 2020 study identifies mixed hydrocarbon sources in Browse Basin accumulations using semi-volatile aromatic compounds and diamondoids. Comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOFMS) was used to analyze whole oil and condensate samples. The analysis demonstrates complex fill histories, including high-maturity fluids in biodegraded accumulations on the Yampi Shelf.

Use Cases

• Correlating hydrocarbon fluids to specific source rocks based on semi-volatile aromatic compound signatures.
• Assessing fluid maturity levels using diamondoid concentrations and aromatic maturity ratios.
• Modeling complex basin fill histories by identifying mixtures of hydrocarbons from multiple Jurassic source rocks.
• Discriminating between hydrocarbon fluids using stable carbon isotopic composition of selected diamondoids and alkylbenzenes.

Strengths

• Data is derived from a peer-reviewed study published in Marine and Petroleum Geology, Volume 113, 2020.
• Analytical method is specified as comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOFMS).
• Geographic focus is explicitly on the Browse Basin, North West Shelf, Australia, with specific fields and wells named.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-03-25 16:11:07.368990; freshness should be verified.

Provenance

Source

Geoscience Australia Data

Collection Method

Laboratory analysis of whole oil/condensate samples using GC × GC-TOFMS.

Time Range

Study published 2020; sample collection timeframe not specified.

Freshness

Last updated 2026-03 25.

Geography

Browse Basin, North West Shelf, Australia, including the Yampi Shelf and fields such as Cornea, Gwydion-1, Mimia-1, and Concerto-1.