Wonnich Deep-1 has intersected the Upper Jurassic Dupuy Sandstone objective, encountering an overall section of approximately 60 meters. The sand development in this section is relatively poor, with total net sand thickness of approximately 10 to 15 meters. The presence of hydrocarbon shows and logging while drilling results suggest these sands are gas bearing.
Further evaluation of this Dupuy Sandstone section is currently being considered.
Wonnich Deep-1 has successfully encountered what appears to be a thinly bedded gas bearing Upper Jurassic Dupuy sandstone interval. Further evaluation is likely to be required to confirm that these gas sands are producible.
As previously reported, the shallower Flag reservoir target contained an un-swept gas zone in what is possibly a separate compartment of the Wonnich Field. The evaluation of the deeper gas zone will determine the way forward on development options; whether one or both levels will be completed for production.
The Wonnich Deep-1 well is being drilled from the Wonnich platform so further success at the deeper level will allow for relatively rapid development and tie-in to production facilities at Varanus Island.
Harriet joint venture participants are Apache Northwest as operator with 68.5%; Tap (Harriet) Pty with 12.2229%; and Kufpec Australia with 19.2771%.
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