A SUSTAINED gas flow has been recorded at Warro 6, a promising sign for Transerv Energy which said results from early testing were “encouraging”.
In late February Transerv announced that gas was flowing naturally from the well at a rate of 0.85 million cubic feet per day (mmcfd), following a shut-in period.
Results from testing at Warro 6 also reveal that the water to gas ratio continues to reduce – currently 425 barrels of water per day (bwpd), down from 600 bwpd at the beginning of the stabilised natural flow period.
Prior to the shut in, the well continued to produce gas at greater than 1 mmcfd with decreasing liquid rates according to Transerv’s February announcement.
At the Warro 5 well, initial gas flows have been recorded as a well clean up progresses, however flow rates are yet to stabilise and are continuing to improve.
Gas rates averaging 0.75 mmcfd had been recorded over the course of a day, Transerv announced, adding that the performance of Warro 5 was similar to Warro 6, a sign that it may be capable of a natural flow.
In an announcement, Transerv said these findings showed both well were capable of producing significant amounts of gas unaided.
Organic tracers added to fluids from both wells during fracture stimulation work showed that cleaning up may still be proceeding at the Warro 5 well.
“The tracer information suggests we are not seeing the true potential of all zones and we can hope that as testing proceeds, stages 1 and 3 in Warro 6 will contribute more gas,” Transerv said.
“From a geological viewpoint, Stage 2 in Warro-5 is equivalent to Stage 3 in Warro 6 underlining that Stage 3 in Warro 6 has more potential.”
“As previously indicated, the stimulation work carried out at Warro 5 and Warro 6 only targeted approximately 50 per cent of the net pay identified in each well, signifying the current program is not evaluating the full potential of the reservoir section.”