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Georgina Project
Wiso Energy holds 100% interest in EP 222, EPA 201 and EPA 221, which covers a total area of 16,408 km2 in the southern part of Georgina Basin.
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This area has high potential prospectivity in not only conventional and unconventional resources, but also a probable location for natural hydrogen and helium exploration.
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From a conventional perspective, petroleum wells in the surrounding area have abundant oil and gas shows in Arthur Creek Formation, Thorntonia Limestone, Arrinthrunga and Chabalowe Formation, which suggests there are a few reservoir sequences and working petroleum systems in the region
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From an unconventional perspective, Arthur Creek Formation, a regional hot shale, which has high average TOC 3.3%, is not only high-quality source rock but also target for unconventional shale gas/oil.
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From a hydrogen/helium perspective, south edge of Georgina Basin is characterised by a deep fault system that separates Georgina Basin from Arunta Region/Aileron Province, which shows similar geological setup as hydrogen/helium prolific Amadeus Basin (see our helium exploration concept).
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Hydrogen and Helium Potential
Helium Exploration Concept
Natural helium forms by radioactive decay of Uranium and Thorium element. To accumulate a helium underground gas pool, it needs
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source material rocks or magma that are Uranium and Thorium rich. Most of helium resources were found associated with old Precambrian cratonic terrains. (why? We think time is a critical component, and radioactive decay rate is relative constant, and for a given abundancy of Uranium and Thorium in source, longer period means more generation of helium)
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Trap Similar to oil/gas, a trap consists of: 1) a space in which rock is porous for gas/liquid to accumulate and 2) a non-porous seal on top to prevent gas from leaking and migrating upward. Helium molecule is much smaller than oil/gas, therefore requiring better seal (halite/salt formation is deemed to be a perfect seal for helium).
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Conduits To connect helium from source to trap, relative porous spaces are needed for helium to migrate. Many of the helium basin are formed deep fault zones and it is very likely these faults acts as conduits for helium migration.
Wells with helium presence concentrate in Amadeus Basin with one well in McArthur Basin. Amadeus Basin is one of the oldest basin onshore of NT and it is separated by a east-west trending boundary fault system from the old Arunta/Aileron Province. Those fault system is interpreted to connect into deep crust and very likely act as conduits for helium from deep source
A schematic N-S section across Amadeus Basin shows faults that detached into deep basement, and those faults underwent both extensional and compressional tectonics. Fault activity caused by tectonics is a major mechanism for hydrocarbon expulsion and migration, and likely played same role for helium development. (Santos presentation 2017 Seapex)
A schematic N-S section across Lander Trough of Wiso Basin shows similar basin architecture to Amadeus Basin. (Section from NTGS 2014 basin study)
A N-S seismic section across Dulcie Trough of Georgina Basin shows similar basin architecture to Amadeus/Wiso Basin. (GA L192 seismic line)