Hi all,
I have just finished reading a document from Research News dated Feb 2001. Whilst dated, I feel it is still relevant today. A fair bit of it may go over your heads but it may answer some questions that people have raised and get this forum back on track with informative articles that assist our trading decisions.
Below is an excerpt with the link to the original document down the bottom:
Implications for Exploration
This study identified numerous oil
families and petroleum systems in
Perth Basin. It also positively
identified, for the first time, both
Permian and Triassic sources for gas
in Perth Basin.
The Early Triassic Kockatea Shale
is the principal source for oil, and it
is of the highest quality in the
onshore Northern Perth Basin.
Carbon isotopic evidence for gas
indicates that the Kockatea Shale is
also the major source for gas
onshore. Gas generation should still
have occurred offshore, even though
the Kockatea Shale has diminished
potential for oil.24 The Permian, and
to a lesser extent, Jurassic sediments
are also gas sources in Perth Basin.
The existence of leaky Permian seals
for gas leads to a large scale ‘gas
flush’ in the subsurface,
compounding the widespread gasstripping
of oil in Perth Basin.17
However, this re-mobilisation of
hydrocarbons should result in longrange
migration and a mechanism for
emplacement of petroleum higher in
the section.
In summary, the identification of
Permian and Triassic sources for gas
in the onshore Perth Basin, coupled
with recognised oil and gas potential
in the Mesozoic sediments offshore,25
highlight the potential for multiple
petroleum systems active in the
region and points to new exploration
opportunities.
Link: http://www.ga.gov.au/image_cache/GA12206.pdf
Kind Regards,
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Hi all,I have just finished reading a document from Research...
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