Comet Ridge and its partner Vintage Energy have flowed gas from the Albany 1 appraisal well in Galilee Basin’s Authority to Prospect (ATP) 744 permit in Queensland, Australia.
The gas flow represents the first measurable flow of natural gas from the Lake Galilee Sandstone in the Galilee Basin, according to Comet Ridge.
The Comet Ridge-Vintage Deeps (CRVD) joint venture (JV) has recorded a stabilised gas flow rate of 230,000 standard cubic feet per day (scf/d) via underbalanced drilling from 2582-2595m at its Albany 1 well.
Albany 1 flowed gas across a 13m interval in the Lake Galilee Sandstone (LGS) Reservoir, with around 100m of sandstone yet to be penetrated.
Comet Ridge managing director Tor McCaul said: “We are extremely pleased with the initial flow rate at the Albany 1 well, which has been achieved from a 13m interval, which represents approximately 10% of the sandstone interval targeted by the well.“
“The well was being drilled underbalanced with nitrogen when the drill string became stuck across the flowing reservoir interval, so it is possible that part of the interval was obstructed from flowing by the stuck drill string and/or other rock material in the hole.
“The JV has taken the decision to suspend drilling in order to secure a larger rig to complete Albany 1.”
Besides completion of Albany 1, the company will use the larger rig for Albany 2 step-out.
The results demonstrated the ability of the reservoir to deliver gas when unstimulated, with stimulation set to further benefit the reservoir.
Comet Ridge currently owns a 100% interest in the ATP 744.
Vintage Energy is set to earn a 15% interest in the Deeps through the first stage of a farm-in before increasing its stake to 30% through the second stage.
