Drilling Summary And Stratigraphic Data For Southwest Bairnsdale No. 1 Well

A detailed report documents the drilling, logging, and stratigraphic results from the Southwest Bairnsdale No. 1 exploration well in the Gippsland Basin, Victoria. The well was drilled to a depth of 3926 feet over a period from January 8 to February 14, 1963, by contractors for Woodside (Lakes Entrance) Oil Company N.L. and Arco Limited. It achieved its primary objectives of gathering stratigraphic data and testing for hydrocarbons, though it was ultimately plugged and abandoned as a dry hole.

Use Cases

• Analyze stratigraphic column data including depths for Tertiary sediments (0-1408 ft), Lower Carboniferous-Upper Devonian sediments (1408-3806 ft), and pre-Upper Devonian granite (3806-3926 ft).
• Study the results of the formation test conducted over the interval 2522 to 2559 feet, including recovered fluid volume (120 ft of mud) and recorded flowing pressures.
• Evaluate lithological descriptions and petrophysical properties such as porosity and permeability mentioned for Basal Tertiary gravels and Lower Carboniferous-Upper Devonian sandstones.
• Investigate drilling objectives and subsidy details related to the Petroleum Search Subsidy Act 1959-1961 for off-structure exploration.

Strengths

• Report contains specific, factual drilling data including a precise total depth of 3926 feet and a defined drilling period of 37 days.
• Provides detailed stratigraphic analysis with depth ranges for three major geological units encountered.
• Documents a specific formation test with interval details and quantitative results on recovered fluids.

Limitations

• The dataset is a single historical report from one well, providing a very limited sample size for broader analysis.
• Data is from a 1963 drilling operation and may not reflect current geological understanding or modern measurement techniques.
• Primary data formats are PDF and HTML, which require manual extraction for quantitative analysis, and no underlying tabular data is provided.

Provenance

Source

Australian Ocean Data Network, sourced from data.gov.au.

Collection Method

Drilling, coring, and logging operations conducted during the well's construction, summarized in a published report.

Time Range

Drilling operations occurred from January 8, 1963 to February 14, 1963.

Freshness

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Geography

Gippsland Basin, Victoria, Australia, approximately 15 miles west-south-west of Bairnsdale.