NT9 Oct 2018 19:34
Australian shale play faces rocky ride
The Northern Territory, a key LNG centre, holds huge reserves of shale gas. But will regulations stifle development?
On a low-lying peninsula just south of Australia's largest tropical city, Darwin, lie two liquefied natural gas export facilities, signifying the leading role the Northern Territory (NT) plays as a global LNG exporter.
At Bladon Point, the Inpex-Total joint venture Ichthys LNG project is poised to go live this year, liquefying gas and condensate sourced from the Browse Basin brought onshore via an 890km (553-mile) pipeline. At Wickham Point, the ConocoPhillips-operated Darwin LNG facility processes gas from the Bayu Undan field in the Timor Sea, and is looking at expanding capacity to include supply from the Barossa-Caldita fields.
But this isn't all that the NT has to offer. The region also holds vast onshore shale gas reserves with the potential to supply additional exports through Darwin or east through the Queensland LNG export terminals.
Geoscience Australia estimates the NT holds over 200 trillion cubic feet of onshore shale gas, 70% of which lies in the Beetaloo Sub-basin of the McArthur Basin-a resource larger than North West Shelf conventional gas resources and comparable to several US shale gas basins. Beetaloo's Velkerri shale rock formation alone is estimated to hold over 118 trillion cf, enough to power Australia for over 90 years at current consumption rates.
"The volume of the potential gas at play is huge, with latest estimates of 500 trillion cubic feet mentioned," says Alan Samuel, director of Strategy & Operations at Deloitte Australia, adding that current total proved reserves in the whole of Australia are estimated at 128 trillion cf.
"Gas production companies have drawn parallels with the Marcellus region in the US, currently producing about four times the total Australian domestic gas demand… Aside from supplying the east coast domestic markets, production growth could potentially double LNG train export capacity by 2030," Samuel adds.
Seeking foreign investment
After lifting a temporary ban on onshore fracking earlier this year following a lengthy scientific inquiry, the NT is now one of the few Australian states which allow unconventional gas to be extracted. Indeed, the NT government is now moving to attract foreign investment into the region as it seeks to trigger a US-style shale boom to meet burgeoning domestic and future export gas demand.
Incentivising exploration is the newly-opened Northern Gas Pipeline (NGP) which connects the NT and Queensland gas networks for the first time. Theoretically, this enables a producer to pipe gas north to Darwin LNG, east to LNG export facilities in Queensland, or further south to eastern Australia's demand centres.
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