Penola No 1 Well Drilling Log from South Australia, 1961

1961 drilling data from the O.D.N.L. Penola No. 1 Well in South Australia, drilled to a total depth of 4985 feet between February 7 and May 5. The operation tested the Coonawarra subsurface structure, providing electric and mud logging, testing, and coring results. The well penetrated Oligocene to probable Upper Jurassic rock sequences, encountering minor gas showings but no commercial hydrocarbons.

Use Cases

• Analyze lithological sequences like Gambier Limestone and Compton Conglomerate thicknesses to model subsurface Tertiary formations.
• Correlate drilling depth data with interpreted unconformities, such as at 1040 and 4300 feet, for structural geology studies.
• Study minor gas showings recorded in the well log to assess non-commercial petroleum potentialities in the region.
• Use the detailed depth measurements of formations like the 2380-foot Runnymede Formation for stratigraphic column construction.

Strengths

• Provides precise depth measurements for geological formations, such as 215 feet of Gambier Limestone and 160 feet of Compton Conglomerate.
• Contains detailed operational data including the specific drilling rig used (Failing 2500 - Holemaster) and contractor.
• Documents a complete drilling timeline from commencement on 7th February, 1961, to abandonment on 5th May, 1961.

Limitations

• Data is presented in report formats (HTML, PDF) without a structured, machine-readable tabular schema.
• Limited to a single well location, offering no comparative data from other sites in the region.
• Information is temporally stale, documenting a drilling operation from over 60 years ago.

Provenance

Source

Geoscience Australia Data

Collection Method

Drilling operation with electric and mud logging, testing, and coring.

Time Range

1961-02-07 to 1961-05-05

Freshness

null

Geography

North-east corner of Section 500, Hundred of Penola, South Australia