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PESA NSW February 2018 Twilight Seminar

Tuesday, February 6, 2018 @ 17:00 - 19:00

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Guest Speaker: Dr. Pete Jeans

Retired from Shell as Regional Geological Advisor after 30-year career. Established PJx in 2004: active ever since, as regional geological consultant and peer reviewer. Insightful and keen geologist with near-worldwide experience and, where appropriate, a fund of potential analogues. Skilled in basin evaluation, prospect review, post-mortems, and dataroom evaluations.

PESA NSW Twilight Seminar Tuesday 6th February 2018

Presented by Pete Jeans

The power-point is available for download by clicking here: PESA_ PJx Perth basin _ Madagascar FINAL 3

The abstract is available for download by clicking here: PESA abstract 23_02_2018

The Karroo Corridor, Madagascar and the Perth Basin, Western Australia: their remarkable similarities, and potential for cross-basin learnings.

This paper seeks to summarise and compare the structural settings, stratigraphy, and known hydrocarbon systems of the Perth Basin of Western Australia and the Karroo Corridor of Western Madagascar.

Despite their present-day separation of ~6000 km, and their pre-drift, intra-Gondwana separation of ~3500 km, the Karroo Corridor (KC) of Madagascar and the Perth Basin (PB) of Western Australia show remarkable similarities:-

• Both lie on the west side of a (sub-) continent,
• Both are failed Permian rift basins
• Both strike N-S and are more than 900 km in length and 50 – 100 km wide
• Both are bounded inboard by a faulted contact with crystalline basement
• Both are bounded outboard by a Jurassic rift system which culminated in continental separation and sea-floor spreading (mid-Jurassic for KC; late Jurassic-Valanginian for PB)
• Both are overlain by a Cretaceous-Tertiary passive margin sequence, though now widely eroded as a consequence of Neogene uplift.
• A proven oil charge in both basins from Early Triassic shale source rocks (with dC13 values of 30-33 ppt)
• A proven (PB) and potential (KC) gas-condensate charge from Permian coals (with dC13 values of 25-28 ppt)

On this basis, the two basins could have significant analogue value, one for the other. For example,

• Is there an as-yet undiscovered heavy oil play in the PB?
• Are there two discrete working Permo-Triassic hydrocarbon systems in the KC?
• Are there viable gas-condensate reservoirs within the Permian sequence of the KC, similar to the High Cliff and Dongara sandstones of the PB?
• Could the geo-mechanical studies from the PB (relating stress orientation to fault leakage) provide valuable insights to trap risking in the KC?

Date & Time:      
Tuesday 6th February, 5pm for a 5:30pm start.

PESA Members:                               $30.00 (Members must Log on to the PESA website to see the member prices)

Non-members:                                 $40.00

PESA Students Members:              $10.00 (Members must Log on to the PESA website to see the member prices)

Castlereagh Boutique Hotel, 169 Castlereagh St, Sydney, NSW

Please note this is not a formal dinner,  a small amount of finger food and drinks will be provided on the night

Bookings close Friday 2nd February 2017 for venue and catering purposes.


Tuesday, February 6, 2018
17:00 - 19:00


Castlereagh Boutique Hotel
169 Castlereagh St, Sydney, NSW 2000 Australia
+ Google Map
+61 2 9284 1000


PESA NSW Secretary
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