Gilmore Gas and Oil Geochemical Analysis in Queensland's Adavale Basin

Geoscience Australia provides a geochemical study of hydrocarbon origins in the Gilmore Field, central Queensland. The analysis details molecular and isotopic compositions to differentiate gas sources from Devonian and overmature reservoirs. The data supports modeling of petroleum generation and migration pathways within the Adavale Basin.

Use Cases

• Analyze isotopic composition data to differentiate methane sourced from wet gas versus deep overmature sources.
• Model petroleum generation and migration using maturity indicators like vitrinite reflectance (1.4-1.6%).
• Correlate source-sensitive biomarkers and carbon isotope composition of Gilmore-2 oil with other Devonian-sourced oils.
• Investigate reservoir compartmentalisation supported by spatial variations in overmature dry gas content.

Strengths

• Includes detailed molecular and multi-element isotopic data for source rock differentiation.
• Provides specific maturity metrics, such as vitrinite reflectance of 1.4-1.6% for wet gas and oil.
• Links geochemical findings to specific geological formations like the Log Creek Formation and Lissoy Sandstone.

Limitations

• Dataset is derived from a single 1998 journal article, limiting temporal scope and sample size.
• Lacks tabular data (rows/columns), consisting primarily of textual analysis and interpretation.
• Geographic focus is narrow, centered on one field in the Adavale Basin.

Provenance

Source

Geoscience Australia Data

Collection Method

Published geochemical analysis from a peer-reviewed journal article.

Time Range

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Freshness

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Geography

Adavale Basin, central Queensland, Australia