Karoon Gas (ASX: KAR) expects its Zephyros‐1 well in the Browse Basin offshore Western Australia would be capable of flowing gas at similar rates as the Kronos-1 gas discovery.
However, the ConocoPhilips-led joint venture has opted not to production test Zephyros‐1 due to its many similarities with Kronos-1.
MDT sampling tools have indicated the reservoir sands at Zephyros‐1 have some of the highest mobility values, which measure potential to flow gas, in any of the Poseidon area wells.
Pressure data from the Plover Formation gas column indicates a possible deep gas‐water contact similar to that interpreted at Kronos‐1.
The 108 metres of cut core and wireline logging being carried out are expected to provide a high quality data set sufficient for ongoing field evaluation work.
Numerous reservoir fluid and pressure samples were also gathered, allowing the joint venture to further assess the greater Poseidon resource size and gas composition while also providing information for use in estimating well production rates for any development wells in the future.
Zephyros‐1 is located in permit WA‐398‐P on the flank of a large tilted fault block about 9 kilometres southwest of the Kronos‐1 discovery well. It was drilled to test the extent, presence and quality of Plover formation reservoirs.
Once operations are completed, the Transocean Legend semi‐submersible rig will move to drill Proteus-1, the third of five wells the joint venture is drilling.
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