There is some healthy discussion on couple of OS forums - US and UK on Ascent Resources and Otto....
Worth a look.... and to look at the PDF it's easier to save as target first than opening it....
Thanks to mate Proselenes
Upper Miocine has been producing in nearby wells. It comes from the Fusignano formation. The nearby ones are very large structures, estimated to be 300Bcf to 500Bcf recoverable.
However, this is then like a "wildcat", you are deepending purely on speculation in the case of Gazatta. I think this is why they want to find gas in the Primary Zone first, and only then will make an attempt to test the deeper levels, just in case. If the Primary Zone contains gas then its worthwhile testing the potential in the Upper Miocine and the potential for a secondary zone.
If you refer to page 3 of 11 in this document, it shows the producing resevoirs in the Fusignano and upper Miocene with nice red dots on the diagram (page 3 of 11 of the PDF (or page 191 document notation)) :
http://www.socgeol.info/Ricerca/PDF/..._1_189_199.pdf
So far the max upside is as said 380Bcf which is all the targets, primary and seconday in the primary zone from 1800m to 2300m coming up trumps.
As no decision has been made to deepen to 3000m (as yet) there can be no talk of this upside. However, if they do go there then the upside is likely another 300Bcf to 500Bcf potential, on top of the primary max of 380Bcf.
As an example, if you refer to the Envoi farm out document, the last page with the diagram, if you find "Spilamberto" well, this is an Upper Miocine well with estimated 330Bcf recoverable.
http://boards.fool.co.uk/Message.asp...792&sort=whole
http://www.sharecrazy.com/ubbthreads...=5&o=&fpart=17