The Perth-based junior said the significance of these hydrocarbon shows, found over two sandstone intervals in the Ngrayong Formation, would be further evaluated with wireline logs once drilling reaches a total depth of 2500m.
Cooper said the nearby Camplong-1 well also found similar shows with elevated gas readings and oil fluorescence in sands at a similar level. This correlation will also be further evaluated by the wireline logs.
Spudded on July 17, Kurnia-1 is Cooper’s first international well and on Friday was being drilled ahead by the Parker 253 rig at a depth of 1388m.
The well is targeting 200 million barrels of recoverable oil and 256 billion cubic feet of gas at the P50 level of confidence.
A 243km 2D seismic program started in the South Madura PSC in May, designed to mature further prospects for drilling.
At the end of the year, the Perth-based company also expects to spud a second Indonesian well offshore North East Sumatra in the Seruway PSC, in which Cooper acquired a 22.5% stake earlier this year.
The Gurame-1 well is appraising the undeveloped Gurame gas field, 50km from the giant Arun gas field and liquefied natural gas plant.
