Mineral Resources has advised that the initial interpretation of logging while drilling the Lockyer Deep-1 well and mud log data has identified a significant gas bearing reservoir in the primary objective Kingia Sandstone.
Lockyer Deep-1 is located within exploration permit EP368 and is a joint venture between Norwest (20 per cent) and Mineral Resource’s subsidiary Energy Resources (ERL) (80 per cent, operator).
The top of the Kingia Sandstone was intersected at 4041 metres and was marked by a significant drilling break and elevated gas readings.
High gas readings were encountered across a gross sand interval of 26 metres to 4067 metres, with good, inferred porosities throughout with a high net/gross ratio.
Elevated gas reading continued in sandstones to the top of the Bit Basher Shale at 4209 metres.
Elevated gas readings were also observed from within the High Cliff Sandstones from 4214 metres with some fair inferred porosities.
Mineral Resources highlighted that based on the available data no gas water contact is evident, supporting the case for very significant resource potential across the greater Lockyer Deep/north Erregulla Deep structure.
Wellbore conditioning activities are continuing, after which wireline logs will be run. Positive wireline results will results in the well being cased for productising testing.
Following the completion of the wireline evaluation and production testing activities, ERL will complete an assessment of the recoverable volumes at the Lockyer Deep-1 exploration well.
The Lockyer Deep-1 well is deigned to test a large structure at the Kingia and High Cliff formations, and lies on trend with discoveries made at Waitsia, West Erregulla and Behara Spring Deep.
The geological chance of success for Lockyer Deep-1 is estimated by Norwest Energy to be 38 per cent.
Mineral Resources managing director Chris Ellison said the success at Lockyer Deep-1 well is a fantastic start to its gas exploration program.
“Following positive wireline logging, a production test will be completed at Lockyer Deep-1 exploration well to fully evaluate gas flow rates, the results of which will inform our appraisal strategy to define the full extent of the gas field,” he said.
“This gas discovery is an important step to securing our decarbonisation pathway and providing energy services to the Western Australian mining industry as it transitions to a lower carbon future.”
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