Oz Vintage Completes Fracking of Queensland Well

Sydney-listed Vintage Energy July 27 said that the six-stage fracture stimulation of Vali-1 ST1 well in Queensland has been completed.

“Timing between the first two fracture stimulation stages allowed brief flowbacks of stimulation fluid and gas from the deepest zones,” Vintage said. “The gas to surface was flared, however, it is important to note that this flowback was not a flow test as it was done over a short timeframe, and hence not suitable for measurement of rates. Timing between other fracture stimulation stages did not permit flowback of any further zones.”

The ATP 2021 joint venture (Vintage 50% and operator, Metgasco Ltd 25% and Bridgeport 25%) awarded the Vali-1 ST1 fracture stimulation activities to Condor Energy Services. The Vali discovery in Queensland was announced in January this year.

The plugs separating the six zones in the well have been milled out with stimulation fluid and gas currently flowing back up the well bore, the company said.

“We are pleased that the fracture stimulation program was completed in a safe manner without major incident. Having six fracture stimulation stages placed is a solid foundation from which to undertake the flow test of the Vali-1 ST1 well,” Vintage managing director, Neil Gibbins, said. “It was pleasing to have flared gas during two brief flowbacks after the deeper stimulation stages, however, the timeframes were too short to measure the flow rate of this gas. Information from the flow test will be made public once operations are complete and the data analysed.”