The existing well, tagged CSo-85, perforated a previously untapped gas reservoir which flowed to surface without any further intervention. Gas flows from the reservoir are estimated at 2mln cubic feet per day.
A testing unit is due on site in the next 10-14 days, Echo said.
'We are delighted that the first step of this exciting workover campaign has been safely and successfully completed, re-entering the well and establishing gas flow to the wellhead without any requirement for artificial lift,” said Fiona Macaulay, Echo chief executive.
“Once the full testing unit is in place we will analyse the well performance during the scheduled long term test. In this fast moving operational phase, the Quintana-01 rig will be moved directly to the second well in the workover campaign to complete and perforate a similar gas zone.”
Echo cautioned that whilst it considers the initial gas flows to be a positive initial indication, they should not be considered conclusive until the extended flow and build-up test is complete.
The workover rig will move on to the next well, CSo-80, and operations are expected to get underway there over the weekend.