Carnarvon Petroleum Ltd (ASX:CVN) has drilled a 26-inch hole to a depth of about 1,025 metres at the Dorado-3 appraisal well with a 20-inch casing set in place.
The Dorado-3 well is the second appraisal of the Dorado oil and gas field, which was discovered in 2018 about 160 kilometres north-northeast of Port Hedland in the Bedout Sub-basin in 95 metres water depth.
It has been designed to enhance the joint venture’s confidence in the subsurface characteristics and confirm reservoir productivity.
Dorado-3 is planned to conduct up to three flow tests targeting the Caley, Baxter and Milne reservoirs, as well as acquire about 380 metres of full-bore core in the Caley, Baxter, Crespin and Milne Members.
READ: Carnarvon Petroleum Ltd commences drilling Dorado-3 offshore well
This will result in a substantial amount of new data to further characterise the Dorado field.
The Dorado-1 exploration well discovered hydrocarbon bearing reservoirs in the Caley, Baxter, Crespin and Milne Members of the Lower Keraudren Formation.
The Dorado-2 appraisal well, which is 2.2 kilometres northeast of the Dorado-1 well confirmed hydrocarbon bearing reservoirs in the Caley, Baxter and Milne wells and demonstrated connectivity within each reservoir.
READ: Carnarvon Petroleum raises $79 million to progress Dorado project
The 16-inch hole will be drilled to a depth of around 2,600 metres and 13 and three-eighths casing will be set in place.
Following this a 12 and a quarter inch hole will be drilled to around 3,880 metres.
No hydrocarbons are anticipated to be intersected in these drilling sections.