Strike scores gas trifecta at deep Perth Basin well
Strike Energy has achieved a trifecta of success in Western Australia’s Perth Basin with its West Erregulla-2 exploration well intersecting 10 metres of net gas pay with average porosity of 10.3% in the High Cliff sandstone.
Managing Director Stuart Nicholls said: “The addition of yet another material gas discovery in the West Erregulla-2 drilling campaign makes this a truly outstanding result for the well. The High Cliff sandstone quality at West Erregulla is comparable to the High Cliff in the Waitsia-1 well which flowed 25 million standard cubic feet of gas per day when tested.”
“The High Cliff results are in line with Strike’s expectations and indicate a discovery with significant areal extent that can be delineated on 3D seismic.”
“West Erregulla-2 has finished drilling at 5,100m and is now not only the deepest well in onshore Australia but has also discovered the deepest ever hydrocarbons.”
“The presence of both gas and porosity at such depths add further significant value to the fast-evolving Kingia-High Cliff conventional gas fairway within the Perth Basin.”
The company is currently undertaking additional advanced wireline logging at West Erregulla-2 and will acquire permeabilities, formation pressures, fluid samples and cores of the High Cliff sandstone.
Once logging is complete, Strike will run and cement production casing before conducting flow tests for the Kingia and High Cliff zones.
West Erregulla-2 previously intersected 41m of net gas pay with good average porosities of about 14.3% in the shallower Kingia sandstone.
This result compares favourably with the log data from the nearby Waitsia gas field, where the Kingia sandstones returned porosities of more than 11%.
All eyes will now be on the upcoming flow test, which will provide the final answer on the commerciality of West Erregulla-2.
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