BgYour concerns are correct. The Northern Canning been...

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Your concerns are correct.

The Northern Canning been structured to hell and back, major deformation in the Triassic / Jurassic geological period associated with strike slip movements in the Fitzroy/Gregory Trough, very messy. End result formation of large scale E-W orientated anticlines with pervasive N-S faulting in the centre of the Fitzroy/Gregory Trough. OBL areas toward the edge and even on OBL’s mapping you can see the faults.

The other concern is the lack of any thick seals in the above Salt section, i.e. younger than late Silurian.

Thus you have great reservoirs above salt, Grant and Anderson for example; these are normally filled with rain water, would solve the water shortage in Perth hey.

As a petroleum geologist it makes the Northern Canning high risk as there is a strong likelihood that any generated and migrate hydrocarbons have leaked away, bugger!

With reference to CSIRO

There is a major difference between offshore and onshore geological interpretation, offshore fantastic 3D seismic data, and onshore poor quality 2D data, hence you are unable to utilise the models or theory that CSIRO developed due to lack of good quality data.

With reference to OBL, very high risk Canning plays,

The back reef idea is relying on just one seismic line and you can manipulate seismic data to enable you to see what you want. If the back reef play is that good why hasn’t any other company drill for it in the pass, or did they elsewhere in the Northern Canning and it didn’t work? Notice that Arc is not planning to drill the Backreef play. Enough said on that one.

The Selene/Valentine prospects might work and really need to be drilled, the chance of success (meaning commercial oil/gas field) would less than 1 in 10 due to high risk of leakage and lack of proven oil/gas migration.

Cheers

PC43