Exploring Hydrocarbon Depletion
drwater wrote:I want to ask all the oil and gas industry insiders (Rockman, Rockdoc, all you other rock stars..) what they think about the risks to groundwater from fracking. I have read the new EPA report on fracking that just came out, and while they put some caveats in the executive summary, there is really minimal evidence of groundwater pollution due to fracking - maybe a handful of cases out of the tens of thousands of wells. Or am I missing something that you insider folks may have a better handle on?
Two categories: (A) Pollution directly from frac'd wells (actually any well...frac'd or not) and (B) Pollution from improperly/illegally disposed oil field fluids (recovered frac fluids, salt water, etc).
Perhaps it would help to say that, as Rockman pointed out, protecting the environment is a secondary issue for the O&G companies
Finally, when discussing fracking with the uninitiated: the fracking fluids stay in the borehole for the duration of the frac job, i.e. for very short time only, right? After that, they are pumped to the surface and disposed. I imagine that any remaining fluids that have seeped into the fractures are quickly washed out by the oil or gas when production begins. Now if there was a mechanism that allowed residual frac fluids to migrate through thousands of feet to the surface or shallow aquifers within months, then why is the oil or gas still down there? And if there was a way, how long would it take for a fluid to reach the surface - isn't that a matter of decade
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