Bass Basin Offshore Well Drilling Logs And Analysis

Esso Exploration Australia Inc. drilled the Esso Bass No. 1 well in the offshore Bass Basin between Victoria and Tasmania. The well reached a total depth of 7717 feet between July and September 1965, with a full program of logging and coring undertaken to assess petroleum potential. This report from the Australian Ocean Data Network details the stratigraphic information gathered from the Tertiary and Mesozoic sections.

Use Cases

• Analyze well spud date (21 July 1965) and total depth (7717 feet) to benchmark drilling operations in the region.
• Correlate seismic data interpretations with actual stratigraphic information from the Tertiary and Mesozoic sections to validate geological models.
• Evaluate the petroleum potential of postulated Miocene reef-type anomalies based on the coring and logging results.
• Study the geographic context of the well location, approximately 88 miles east of King Island, for regional basin analysis.

Strengths

• Report includes specific operational metrics: total depth of 7717 feet and a precise drilling timeline from July to September 1965.
• Provides geological context for the Bass Basin, covering an area of approximately 25,000 square miles.
• Documents a full program of logging and coring, indicating detailed subsurface data collection.

Limitations

• Data is from a single exploratory well (Esso Bass No. 1), limiting statistical significance for basin-wide conclusions.
• Information is historical, dating from 1965, which may not reflect current geological understanding or technologies.
• Primary data formats are PDF and HTML reports, not machine-readable structured data like CSV, complicating quantitative analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Drilling, logging, and coring operations conducted by Global Marine Australasia Pty Ltd. for Esso Exploration Australia Inc.

Time Range

Drilling operations occurred from 21 July 1965 to 14 September 1965.

Freshness

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Geography

Offshore Bass Basin, Tasmanian waters, approximately 88 miles east of King Island, between Victoria and Tasmania.