ConocoPhillips has discovered oil at Poseidon North-1 well in the WA-315-P Browse basin permit, offshore Western Australia.
Karoon Gas Australia, which owns a 40% stake in Poseidon North-1, interprets that the well intersected gas bearing sands of Jurassic age across a 20m-gross, 12m-net reservoir interval.
Karoon has interpreted this based on cuttings, mud gas and wireline log data, which was conducted after the well reached its final depth followed by a wireline logging programme.
Still the pressure data is inconclusive and sample analysis remains outstanding, which is required to confirm the presence of mobile gas.
Currently, the well is being plugged and abandoned with no further evaluation planned.
A ConocoPhillips and Karoon Gas joint-venture (JV) is set to drill Pharos-1 well location in permit WA-398-P as the sixth and final well following Poseidon North-1 well.
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Pharos-1, which is operated by ConocoPhillips, is located around 9km north-east of Proteus-1 and will be a further test of the Proteus-Crown trend.
ConocoPhillips is set to use the Transocean Legend semisubmersible for drilling Pharos and the well will be targeting an extension of the discovery made at Proteus-1, which established excellent reservoir quality and condensate bearing gas in the Montara formation.
Pharos is a low-risk exploration well with the potential to add considerable resource to any future Poseidon development.
The principal objective of the campaign is to better define the size and quality of the hydrocarbon resource within the exploration permits that contain the Greater Poseidon trend.
Image: Location of WA-315-P Browse basin permit. Photo: courtesy of Karoon Gas Australia Ltd.