I think the volume of ground affected by fracking is quite a bit larger than that hole being drilled into the volcano, and the goal with fracking is to mess around with the pressure under the surface, where ideally this is close a pressure neutral (volume changing, and that, I suspect will happen at/above surface level) system. Lastly, waste products from fracking tend not to be well controlled/cleaned except maybe on paper, the water (or other liquid) use here should be in a fairly closed system and shouldn't be introduced to toxic chemicals. Not that this is the wisest idea either, but an experimental site should provide interesting details as to the danger.
It bothers me when people discuss their uninformed opinions relating to a topic as fact.
1) The amount of fluid used in these deep shale formations is quite large, but even when you drill horizontally for a mile and then fracture 1000+ feet above and below the hole, you're still typically 12,000 feet below the surface (therefore the "frac zone" is from 11,000 to 13,000 feet). So even if you have DEEP water table of 2000 feet below the surface (where nearly none are this deep), the alleged "toxic chemicals" would have to travel a distance of around 9,000 feet (in this case) in order to taint the water supply. I've sat through enough presentations with REAL data obtained in the field to know that the fractures occur nowhere near these water zones.
2) The purpose of fracking is to increase the permeability of low-permeability shales (traditional reservoirs are in the mili-darcy range were unconventional reservoirs are more in the micro to nano-darcy range). They use high pressure fluid to open up the shale. Has nothing to do with adding pressure under the surface.
3) Waste products tend not to be controlled? Are you fucking nuts? The amount of regulation on what to do with the waste water is HUGE (and the assfucks that attempt to dump these fluids are massively fined), not to mention that a good chunk of fracking research goes into figuring out how to best reclaim and reuse of the fluid. Besides being 99% water and sand, the other additives are typically guar, biocides, polyacrylamides for friction reduction, corrosion inhibitors, citric acid, and ethylene glycol.
By the way, I work in a plant that makes a variety of additives for drilling and fracking fluids. Would you believe me if I told you that our facility is not capable or certified to handle any type of hazardous materials? That would mean that our company is going to get shut down by the government if they find out.... or maybe that the majority of additives for drilling and fracking fluids are non-hazardous?
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