Origin of Gilmore Gas and Oil: Geochemical Analysis from the Adavale Basin, Queensland

A 1998 geochemical study by Boreham and de Boer analyzes the origin of gas and oil in the Gilmore Field. The research uses molecular and multi-element isotopic data to identify sources from Devonian marine organic matter and a deep, overmature dry gas source. It was published in The APPEA Journal and is hosted by the Australian Ocean Data Network.

Use Cases

• Modeling hydrocarbon generation and migration pathways based on described source rock maturity and reservoir compartmentalization.
• Correlating oil and gas samples between basins using source-sensitive biomarkers and carbon isotope composition mentioned in the description.
• Evaluating the play concept for deep, overmature dry gas sources in other sedimentary basins as suggested by the findings.

Strengths

• Analysis is based on a specific, named field (Gilmore Field) and well (Gilmore-2) providing concrete geographic context.
• Study employs a combination of molecular and multi-element isotopic approaches, as described.
• Source rocks are specifically identified (e.g., Log Creek Formation, Lissoy Sandstone, Cooladdi Dolomite).

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 data_gov_au, focusing on a single Australian basin.

Provenance

Source

Australian Ocean Data Network, citing Boreham C.J., & de Boer R.A. (1998).

Collection Method

Geochemical analysis of hydrocarbon samples, likely from well cores or production tests.

Time Range

Study published in 1998; temporal coverage of the underlying geological data is not specified.

Freshness

Last updated 2026-06-05 05:50:36.831976; freshness should be verified as the underlying study is from 1998.

Geography

Gilmore Field, Adavale Basin, central Queensland, Australia.