The surface location is about 14 km east-northeast of the township of Dongara and 250 m south-east of the Central Yardarino-1 well. The proposed total depth is 2,670 m measured depth and it is expected to take 26 days to drill on a dry hole basis.
Corybas-1 will evaluate the potential of the upper High Cliff Sandstone. This was not penetrated in Central Yardarino-1 but forms the productive horizon in Hovea-2, where it flowed gas at 13.5 million cu ft per day.
The well will also provide information on the Irwin River Coal Measures, which are known to be gas-bearing in the area but generally of poor reservoir quality.
Interests in L1 and L2 (excluding the Dongara, Mondarra and Yardarino fields) and Corybas-1 are ARC Energy Limited, 50% (operator) and Origin Energy, 50%.
