A 2020 study published in Marine and Petroleum Geology analyzes hydrocarbon fluid samples from the Browse Basin, Australia. Researchers used comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOFMS) to examine diamondoids and semi-volatile aromatics. The data demonstrates that numerous accumulations within the basin contain hydrocarbons from mixed sources, revealing a complex fill history.
Use Cases
- Correlating hydrocarbon fluids based on diamondoid and semi-volatile aromatic compound concentrations.
- Identifying mixed-source accumulations using aromatic maturity ratios and stable carbon isotopic composition.
- Investigating reservoir fill history by detecting high-maturity fluids in biodegraded accumulations.
- Distinguishing fluids from different Jurassic source rocks (e.g., Plover Formation, Vulcan Formation).
Strengths
- Analysis based on compounds representing a significant proportion of bulk fluid, unlike minor fraction biomarkers.
- Data includes stable carbon isotopic composition for selected diamondoids and alkylbenzenes.
- Results identify specific accumulations with mixed sources, such as greater Cornea field and Gwydion-1.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the Browse Basin, Australia.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOFMS) analysis of whole oil/condensate samples.
- Freshness
- Last updated 2026-05-05 02:25:15.694478; freshness should be verified.
- Geography
- Browse Basin, North West Shelf, Australia.