re: Cornerstone article, page-2

I have some questions.

"Locshare=[1. The Pilot production was successful operated and decommissioned. Does Cnx guarantee there are no incidents like previous Cougar and Linc energy who were both blamed to damage the water table and contaminated the land.]"

Thank you for the article, but by your questions I would suggest you do more reading of past presentations about UCG CNX processes to more fully understand UCG in general and CNX in particular. I think your questions would better be answered by such as they tend towards being off base with the UCG Process.

"re Cougar it was never proven that there was any damage to the water table at all. Supposition was that what minimal damage there was may have  been caused by past farming practices.  The water was still potable apparently.  End game was that Cougar threw up their hands, only received a $50K fine, which in Environment compensation terms doesn't even rate a parking ticket."

As for Linc, both the Government and Linc deny there was any damage to the water table.   Their dispute continues re the rest.

In any case CNX has a clean bill of health and has been scrutinized by Government and Independent Consultants in minutia.





"2.Why should Cnx risk to target shallower Coal Seams which are closer to water table. What are about the tenure conflicts between CSG and UCG where QLD GOV. seems to 100% support CSG industry."

The coal seam depth at which operations may take effect has yet to set by Gov. Policy, there was debate a few years back to the minimum depths.  We will have to wait and see.




"3. Does it make more sense and more attractive if Cnx could replicate all depleted CSG wells by targeting deeper, unmineable coals and wait until there are no more useful of the Surat basin after all CSG wells are fully exploited and the Coals will be burried forever in light of ill-fated coal miners." "Then It will not be too late to target shallower coal formations because the water will be drawn out completely by CSG drillers. No more environmental activists."

You may want to research the compatibility of CSG and UCG, they are incompatible. Water is also need for the Gasification process.  Again I think your missing the UCG process requirements.



"4. Let's say the horizontal "stimulation" or "gasification" of both CSG and UCG are to go forward at shallower zones. Will Shale/Tight gas industry replace CSG /UCG sonner rather than later if there are more and environmental activists in both techniques.
Shale / Tight gas are more reliable and potential Frackers"

Again way off base IMO - UCG  Does Not Frack!

"Unlike fracking, which involves pumping fluid into coal seams to cause fractures, in UCG the entire process takes place underground within the coal body. Coal is ignited by injecting oxygen into the coal seam. The combustion converts carbon in the coal to CO2 and heat. This heat drives secondary reactions between CO2 and water to produce carbon monoxide (CO), hydrogen gas (H2) and methane (CH4). The gases are extracted through a production well, leaving tar, solid char and bottom ashes in the cavity.
These gases can be used to generate electricity, and the hydrogen can be used to power fuel cell vehicles.
UCG is considered a “clean coal” technology. When coupled with electricity generation, UCG produces 25% less greenhouse gases, 80% less nitrous oxides, and 95% less sulphur oxides per megawatt hour than traditional coal-fired power generation."

Above extract from April 30 1014 (see below).  Since which CNX has met all requirements including Decommissioning Process with end result scrutinized by DEMP and Independent Consultants, which if information from CNX is correct, such has been given the green light.

http://theconversation.com/is-underground-coal-gasification-the-new-fracking-26031

We simply await the final word from QLD Gov which IMO is well overdue.  I do wonder if we are being held up due to the Linc/Govt dispute or not.

As for 'Marathon' I know little about them or whether their have their own proven IP or if they are licensing their process form someone else.   I've never heard of them having a trial plant or anything, perhaps someone else may know, as I'm not bothering researching them.