Geltwood Beach No. 1 Well: Drilling Log and Stratigraphy from Otway Basin, Australia

Beach Petroleum No Liability drilled the Geltwood Beach No. 1 Well in the Otway Basin, South Australia, between August and November 1963. The well reached a total depth of 12,300 feet, penetrating Miocene to Cretaceous sediments, with a full program of logging, testing, and coring undertaken. It was subsidized under the Petroleum Search Subsidy Act and was plugged and abandoned as a dry hole after tests yielded only gas-cut water and mud.

Use Cases

• Model subsurface stratigraphy based on described sediment layers from Recent to Lower Cretaceous.
• Analyze hydrocarbon exploration outcomes based on recorded gas traces and drillstem test results.
• Study the geological structure of the Otway Basin based on the well's location on the Geltwood Anticline.
• Correlate drilling data with other regional wells (e.g., Mount Salt, Beachport) to understand sediment wedge-outs.

Strengths

• Provides specific drilling dates (22 Aug 1963 to 10 Nov 1963) and a precise total depth (12,300 feet).
• Includes detailed stratigraphic column descriptions with thicknesses (e.g., 45 ft of sand, 1860 ft of Miocene-Eocene sediments).
• Documents a full suite of operational data from logging, testing, and coring activities.

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 temporal bias inherent to a single 1963 drilling operation.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Data gathered during the drilling, logging, testing, and coring of an exploratory oil and gas well.

Time Range

1963-08-22 to 1963-11-10 (drilling period).

Freshness

Last updated 2026-04-16 08:56:58.242260; freshness should be verified.

Geography

Geltwood Anticline, Otway Basin, approximately 7.5 miles southwest of Millicent, South Australia.