Delhi-Santos Gidgealpa No. 1 Well: Geological Report from South Australia

August to December 1963 drilling operation in the north-eastern corner of South Australia. The well was drilled by Delhi Australian Petroleum Ltd and Santos Limited to a total depth of 13,114 feet, providing geological information on the Permian and Cambrian sequences in the Great Artesian Basin. The report details lithology, hydrocarbon shows, and the discovery of a porous dolomite zone.

Use Cases

• Analyze stratigraphic sequences and lithology based on descriptions of Permian and Cambrian rock formations.
• Study hydrocarbon shows and reservoir characteristics based on mentions of low-porosity sandstones and gassy dolomite zones.
• Correlate regional geology based on comparisons to nearby wells like Innamincka No. 1 and Dullingari No. 1.
• Research historical petroleum exploration subsidized under the Petroleum Search Subsidy Act 1959-1961.

Strengths

• Provides specific drilling dates (28th August to 6th December 1963) and a precise total depth (13,114 feet).
• Contains detailed geological observations, including the first subsurface encounter of Cambrian rocks in the Great Artesian Basin.
• Includes comparisons to other regional wells (Innamincka No. 1, Dullingari No. 1) for context.

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 and temporal bias inherent to a single historical well report.

Provenance

Source

Geoscience Australia Data

Collection Method

Historical well drilling report.

Time Range

1963

Freshness

Last updated 2026-03-25 17:09:41.629857; freshness should be verified.

Geography

North-eastern corner of South Australia, Great Artesian Basin