The cementing you are talking about is for a dry-hole, all active holes have a tree left on top of the casing so they can come back
Like fuk, a single hole has steel all the way down and a plug at the bottom. A fracked well has the bottom of the hole going off horizontally, that is not the same as an oil well. You can run a fracked well dry, you cannot shut it down in the middle of production. Why do you thing the fracked areas are getting gas in the water wells?
Two tards at once, how special.
No, its just one tard talking out his @$$ and demonstrating a complete lack of knowledge of fluid mechanics. And sorry googling a half assed article about enhanced techniques doesn't change that.
Go ahead and pretend you're all knowledgeable from your days driving a truck to move some rigs around some popcorn gas fields. Try again.
Your statements reveal you know nothing about you're pretending. Your reference to "fracking" as opposed to hydraulic fracturing reveals which side of the street you're on. You do realize hydraulic fracturing has been around for DECADES and isn't really new, right? You do realize EVERY casing string (in other words every well) is cemented, right? And that when completing a well, an explosive charge (a.k.a. casing gun) is used to perforate the casing and the cement? By your assertion that "you can't shut a fracked well down in the middle of production" you're saying that you can't close and valve and stop flow?
If you had half a bloody clue you'd realize the source of groundwater contamination is the same its always been: piss poor casing cement jobs, which is why the ERCB/AUEB/whatever their name is this week has such a hard on for them. Congratulations, you really are a moron.