The Waarre C and Waarre A Formation sandstones were penetrated through the well borehole, while the Waarre C primary target was encountered at 2,341 m measured depth with a gross gas column of 70 m.
Wireline logging operations have been completed and laboratory analysis to confirm gas composition is upcoming.
Cooper Managing Director David Maxwell said the well was the result of an $80 million campaign by the JV to find new gas supply for Australia’s southeast.
“We are very pleased with the success at Annie,” said Mr Maxwell.
“It is very encouraging for future exploration in the offshore Otway Basin and for our strategy to build gas production around the hub of the existing Minerva Gas Plant.
“In the coming months, we will complete the subsurface assessments and analysis of data to refine our estimates of field size and to inform decisions regarding field development.”
Annie-1 is located in a water depth of 58 m and is being drilled by the Diamond Offshore Ocean Monarch rig.
The gas field is the first by an offshore well in the Otway Basin since the Netherby field in 2008.
Following Annie-1, the drilling rig will move to 23 km southwest to Elanora-1.
Cooper and Mitsui are 50-50 partners in the JV.
For more information visit the Cooper Energy website.
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