Drilling at Bianchi-1 Gas Appraisal Continues in WA-49-R

Tap Oil Limited provided the following update of the Bianchi-1 gas appraisal well in Retention Lease WA-49-R. The well will target sandstones in a Triassic age Mungaroo Formation within a separate fault block down dip of the Zola-1/ST1 gas discovery.

Location and Proposed Depth

The Bianchi prospect is located in the WA-49-R retention lease in the offshore Carnarvon Basin, approximately 4 miles (6.4 kilometers) north-northeast of the Zola-1/ST1 gas discovery and 12.9 miles (20.8 kilometers) south-southwest of the Gorgon-1 gas discovery well.

The Bianchi fault block is one of a series of adjacent structures that form the greater Zola area. The prospect was matured following interpretation of the Cambozola 3D seismic survey in 2012.

The well will be drilled as a vertical well in a water depth of 787 feet (240 meters) and is expected to take 80 days (trouble free) to drill to a projected total depth of 17,060 feet (5,200 meters). Tap’s cost for the well is expected to be approximately $7.6 million (AUD 8 million).


During the period from 0600 hours (AWST) June 11 to 0600 hours (AWST) June 18, drilling operations for the 8.5 inch (216 millimeter) section continued. The well was drilled to a depth of 16,535 feet (5,040 meters).

Forward Plan

Current operation is tripping out of the hole for a drill bit change. The forward plan is to continue drilling the 8.5 inch (216 millimeter) hole to a final total depth of 17,060 feet (5,200 meters).


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