Comet Ridge Updates on Mahalo Project in ATP 337P in Queensland

Australia's coal seam gas exploration and production company Comet Ridge Limited provided Wednesday an operational update on the progress of the Mahalo 7 horizontal surface to in-seam well project in permit ATP 337P in Queensland. The Mahalo 7 horizontal well is being produced in combination with the Mahalo 6 vertical intercept well, via the pump in Mahalo 6.

Throughout August and September, following the pump change in late July, a very low and constant pump speed was applied to the downhole progressive cavity water pump in the Mahalo 6 vertical well, such that pressure drawdown could be applied very conservatively.

Over this time, whilst the water rate from the Mahalo 6 well remained constant, the gas rate from the well climbed steadily.

During October, three small successive pump speed increases have been applied to the Mahalo 6 well and a significant increase in gas rate has been achieved. The gas rate has now passed 200,000 scf/d (standard cubic feet per day) through the Separator and continues to increase.

This has occurred with only a slight decrease in bottomhole pressure indicating excellent horizontal well productivity to this point. Such evidence provides confidence and scope for significant further pump speed increases in the near future.

Comet Ridge Managing Director, Tor McCaul, said he continues to be extremely pleased with the performance of the well over the past three months.

McCaul said a number of factors are evident here which indicate that significantly more gas production from this well, and the wider field, can be achieved:


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