Samphire Marsh No. 1 Well reached a total depth of 6664 feet, confirming a geophysical estimate by encountering Precambrian granite at 6610 feet. The dataset documents the geological formations drilled, including Quaternary, Mesozoic, Permian, and Lower Ordovician layers. This record was published by the Australian Ocean Data Network and was last updated in April 2026.
Use Cases
- Validate geophysical depth-to-basement estimates by comparing predicted depth to the recorded 6610-foot granite encounter.
- Analyze the thickness of specific geological periods, such as the 2124 feet of Mesozoic sandstone and siltstone, for regional correlation.
- Assess hydrocarbon source rock potential by studying the described 1811 feet of Permian marine beds and their reported lack of hydrocarbon signs.
- Model subsurface lithology using recorded layer depths and compositions like the 2541 feet of Lower Ordovician shale with sandstone.
Strengths
- Provides a detailed stratigraphic column with specific depth measurements for multiple geological periods.
- Confirms a key geophysical data point with the precise depth (6610 feet) to Precambrian basement rock.
Limitations
- Dataset scope is limited to a single well, offering no regional or multi-well comparative data.
- Primary data formats are PDF and HTML, which may require extraction for structured analysis.
- The record explicitly states no hydrocarbon indicators were found, limiting use for petroleum discovery analysis.
Provenance
- Source
- Australian Ocean Data Network via data.gov.au.
- Collection Method
- Data originates from a stratigraphic and structural test drilling operation.
- Time Range
- null
- Freshness
- Last updated in April 2026.
- Geography
- Samphire Marsh No. 1 Well, South Canning Basin, Western Australia.