Browse Basin Petroleum Fluid Geochemistry Using Diamondoids and Semi-Volatile Aromatics

Hydrocarbon fluid correlation studies from the Browse Basin, Australia, utilize semi-volatile aromatic compounds and diamondoids that represent a significant proportion of the bulk fluid. Comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOFMS) was used to analyze whole oil/condensate samples, revealing complex fill histories and mixed sources. The data, associated with a 2020 Marine and Petroleum Geology publication, demonstrates the presence of high-maturity fluids in biodegraded accumulations like the greater Cornea field and Gwydion-1.

Use Cases

• Correlating petroleum fluids to specific source rocks based on diamondoid and semi-volatile aromatic compound signatures.
• Identifying mixed hydrocarbon sources within a single accumulation using compound-specific stable carbon isotopic data.
• Assessing the thermal maturity of petroleum fluids using aromatic maturity ratios and methyladamantane concentrations.
• Modeling complex basin fill histories by distinguishing contributions from Jurassic formations like the Plover and Vulcan.

Strengths

• Analytical method is specified: comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOFMS).
• Geographic scope is defined: samples are from the Browse Basin, North West Shelf, Australia.
• Specific geological formations and fields are named, including Plover Formation, Vulcan Formation, Cornea field, and Gwydion-1.
• Data is linked to a peer-reviewed publication in Marine and Petroleum Geology (2020, Volume 113).

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, associated with a publication by Gemma Spaak et al.

Collection Method

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

Time Range

Study published in 2020; sample collection timeframe is not specified.

Freshness

Last updated 2026-04-28 13:06:25.691964; freshness should be verified.

Geography

Browse Basin, North West Shelf, Australia, including specific fields like Cornea, Gwydion-1, and Ichthys.