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

Drilled between August 22nd and November 10th, 1963, the Geltwood Beach No. 1 Well reached a total depth of 12,300 feet in the Otway Basin, South Australia. The dataset, provided by Geoscience Australia, summarizes the stratigraphic sequence encountered and the results of hydrocarbon testing. The well was plugged and abandoned as a dry hole after drillstem tests yielded only slightly gas-cut salty water and drilling mud.

Use Cases

• Analyze stratigraphic sequences based on described sediment layers from Recent to Cretaceous periods.
• Study hydrocarbon exploration history based on the well's objective to test Lower Tertiary and Upper Cretaceous sediments.
• Model subsurface geology based on the described wedge-out of Cretaceous and Palaeocene marine sediments.
• Assess drilling and logging programs based on the mention of a full program of logging, testing, and coring.

Strengths

• Provides specific drilling dates (August 22 to November 10, 1963) and a precise total depth (12,300 feet).
• Contains detailed stratigraphic descriptions with depth intervals for sediment layers.
• Documents the drilling contractor, operator, and subsidy program under the Petroleum Search Subsidy Act.

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 well report.

Provenance

Source

Geoscience Australia Data

Collection Method

Drilling and logging operations conducted by Drilling Contractors (Australia) Pty Ltd for Beach Petroleum No Liability.

Time Range

1963

Freshness

Last updated 2026-05-14 03:54:37.182289; freshness should be verified.

Geography

Geltwood Anticline, Otway Basin, South Australia