Galilee Energy has commenced drilling at the Zydeco-1 well in Acadia Parish, Louisiana, marking the start of its first drilling campaign on the US Gulf Coast.
The well was officially spudded, signalling the transition from preparation and rig-up to active drilling operations, according to the company. Galilee Energy holds a 100% working interest and a 70% net revenue interest in the Zydeco Oil & Gas Project.
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Initial work on Zydeco-1 involves drilling and setting 9-5/8in casing at around 2,200ft true vertical depth (TVD). Operations are set to progress with further drilling and logging through the Homeseekers B-sand.
Plans then call for the setting of 7in casing at approximately 9,319ft TVD, before advancing towards the Upper Tweedle at approximately 9,577ft TVD and the Lower Tweedle at roughly 9,975ft TVD.
The well is targeting a conventional Gulf Coast gas-condensate accumulation, with unrisked prospective resources estimated at up to 13.7 billion cubic feet of gas and 610,000 barrels of condensate.
The Zydeco-1 location was selected based on modern geological studies and 3D seismic data. It is intended as a low-risk offset to the Maccabees, et al. No. B-1 well.
The project covers 325.3 acres of mineral leases and is located near producing fields and close to a gas spur line connected to the Texas Gas Pipeline.
Detailed assessment of hydrocarbon potential will be performed after drilling through the Upper and Lower Tweedle formations, when electric logging will determine whether the target sands contain hydrocarbon pay and if the reservoir quality supports completion.
Galilee Energy plans to report the next significant update after electric logging, expected around August 2026. If commercial quantities are confirmed, plans include immediate completion and connection to existing pipeline infrastructure.
Galilee Energy managing director Joseph Graham said: “Spudding Zydeco-1 is an extremely exciting moment for Galilee. This is the point where years of technical work, disciplined preparation and careful execution move into the drill bit.
“The rig is turning, the well is under way and we are now testing a high-impact conventional gas-condensate opportunity in one of the most productive hydrocarbon regions in the US.
“The team has done an outstanding job getting Zydeco-1 to this point safely, on schedule and within budget. We now have a clear drilling programme ahead of us, with the key value point expected when electric logs are run across the Tweedle formations.
“If these logs confirm the hydrocarbon pay we are targeting, Galilee expects to move rapidly into completion, surface facilities and pipeline tie-in.”
