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Warrego upbeat over

neighbouring WA gas discovery

The developer has hailed a new gas discovery in a neighbouring
Perth Basin block as having positive implications for its own assets

COMMENTARY AUSTRALIAN independent Warrego Energy
has revealed that its analysis of another firm’s
natural gas discovery in the Perth Basin has bol-
WHAT: stered the prospects of its own assets.
Warrego believes a gas The developer said on September 29 that
discovery in Mineral Mineral Resources and Norwest Energy’s
Resources’ EP368 Lockyer Deep-1 discovery, which is located in
bolsters the potential EP368, expanded the basin’s “sweet spot”.
of its own exploration Mineral Resources said on September 8 that
targets. initial interpretation of the Lockyer Deep-1
well’s logging data had identified a significant
WHY: gas-bearing reservoir in the primary objective
The developer’s analysis Kingia Sandstone. Norwest then said in a Sep-
suggests that other tember 22 update that petrophysical analysis of
blocks’ gas first migrated wireline data from the well had confirmed Kin-
through EP469. gia’s “exceptional reservoir quality”.
Warrego, for its part, believes the EP368 dis-
WHAT NEXT: covery could have positive implications for mul-
Warrego expects to tiple exploration targets within its neighbouring
conduct a new 3D seismic EP469 licence. Image: Mineral Resources
survey at EP469 this
financial year. Discovery details of an up to 800-metre gas column down to a free
Norwest confirmed last week a 34-metre gross water line at a depth of around 4,500 metres.
pay interval at the top of the Kingia Sandstone, The company said it regarded this result as
between 3,888 metres and 3,922 metres, with- “remarkable, as it confirms the fault-seal integ-
out gas-water contact. The interval contains a rity of the structure’s main bounding faults,
20.2-metre net gas pay, based on an 8% porosity regardless of orientation and despite a very sig-
cut-off, that is predominantly within the upper nificant gas column.”
section. It noted that the figures substantially
Norwest described the net pay zone is being upgraded the additional prospectivity identified
of “exceptional quality”, noting that it had an within EP368 and the adjacent EP426. Mineral
average porosity of 16% and average permea- Resources operates both blocks with an 80%
bility estimated at 500 millidarcies. It added that interest, while Norwest owns the remaining
a well-defined gas gradient had been measured 20%.
through the pay interval, indicating the presence Norwest managing director Iain Smith said:
“The upper Kingia pay interval is arguably the
highest quality reservoir encountered thus far
within the deep Permian gas play of the north
Perth Basin, and this fact combined with an
inferred significant gas column gives us good
reason to believe that the structure hosts gas
resources that are greater than our pre-drill High
Case prospective resource.”
He added: “Such an outcome happens only
very rarely in our industry, and we now look for-
ward to production testing of what we expect to
be a very high deliverability reservoir.”
The EP368 joint venture’s success has some
profound implications for nearby exploration

Week 39 30•September•2021 www. NEWSBASE .com P9