Geltwood Beach No. 1 Well: Drilling Summary and Results from Otway Basin, Australia

South Australia's Otway Basin hosts this dataset from the Geltwood Beach No. 1 exploratory well. The well was drilled to a depth of 12,300 feet between August and November 1963 by Beach Petroleum No Liability to test for hydrocarbons. It contains results from a full program of logging, testing, and coring, concluding with the well being plugged and abandoned as a dry hole.

Use Cases

• Modeling subsurface stratigraphy based on described sediment sequences from Recent to Lower Cretaceous.
• Analyzing hydrocarbon potential in the Otway Basin based on recorded gas traces and drillstem test results.
• Studying the geological history of the Merino Group based on the monotonous sequence described from 3,680 feet to total depth.
• Researching historical petroleum exploration subsidized under the Petroleum Search Subsidy Act 1959-1961.

Strengths

• Provides specific drilling dates (22nd August 1963 to 10th November 1963) and a precise total depth (12,300 feet).
• Includes detailed stratigraphic descriptions with thicknesses for multiple geological periods (e.g., 1,860 feet of Miocene to Eocene sediments).
• Documents a full suite of operational data from logging, testing, and coring programs.

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 exploratory well.

Provenance

Source

Geoscience Australia Data

Collection Method

Data gathered from a drilling, logging, testing, and coring program for an exploratory oil and gas well.

Time Range

1963 (drilling period)

Freshness

Last updated 2026-04-30 13:48:23.999868; freshness should be verified.

Geography

Geltwood Anticline, approximately 7.5 miles south-west of Millicent in the Otway Basin, South Australia.