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Home / Mining Services / Mineral Resources Lockyer Deep-1 Gas Discovery

Mineral Resources

  • ASX: MIN
    • Mining Services
    • Fe

Mineral Resources Lockyer Deep-1 Gas Discovery

  • 8 September

Mineral Resources Limited (ASX: MIN; MRL or Company) is pleased to provide the following update on the drilling operations at the highly anticipated Lockyer Deep-1 conventional gas exploration well. Lockyer Deep1 exploration well is located on Exploration Permit EP368, in the highly prospective northern section of the Perth Basin, Western Australia that is host to several significant recent conventional gas discoveries. Energy Resources Limited (ERL), a wholly owned subsidiary of MRL, is operator of the EP368 Joint Venture between ERL (80%) and Norwest Energy NL (20%) (ASX: NWE).

HIGHLIGHTS

  • Drilling results identify a significant gas discovery at Lockyer Deep-1.
  • Excellent reservoir quality encountered in the Kingia Sandstone.
  • Significant gas elevations observed throughout the IRCM and Kingia Sandstone.
  • Additional gas potential identified in the High Cliff Sandstone.
  • Several gas peaks encountered within the Dongara-Wagina Formation.
  • Potential conventional oil resource identified in the Dongara Sandstone.
  • Drilling reached Total Depth of 4,274 metres on 6 September 2021.

MRL is pleased to advise that initial interpretation of logging while drilling and mud log data has identified a significant gas bearing reservoir in the primary objective Kingia Sandstone. 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 readings continued in sandstones to the top of the Bit Basher Shale at 4109 metres. Elevated gas readings were also observed from within the High Cliff Sandstone from 4172 metres to 4214 metres with some fair inferred porosities. 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.

Additional hydrocarbon potential has been identified within the Dongara-Wagina sands, which also had a notable drilling break, with fair oil fluorescence and elevated gas readings. The Dongara Sandstone and Wagina Formation secondary objectives were encountered at 3,117 metres and 3,165 metres, respectively. Oil fluorescence was observed over a 158 metre (gross) section from the top Dongara Sandstone and into the Wagina Formation. Fair to good oil shows were observed within the upper 68 metres of this interval (of which approximately 48 metres is interpreted as the Dongara Sandstone).

Mineral Resources Managing Director Chris Ellison said:

“The success at Lockyer Deep-1 exploration well is a fantastic start to our significant gas exploration program, as we seek to provide natural gas to power our own operations in conjunction with renewable energy sources such as solar and wind.”

“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.”

“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.”

View the full Mineral Resources announcement
View the full Norwest Energy announcement

Peter Klinger

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