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Old 02-26-2014, 08:06 AM   #71
undercoverbrother
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Join Date: Mar 2012
Location: Sylvan Lake
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Quote:
Originally Posted by JD View Post
No, I am not, because then I would be doing what you are: making an assertion without the bits and pieces of information required to make such a statement. That's not how the oil and gas industry works!

What I am saying I think was clear in my post; that there are a plethora of more likely things that caused the "flammable" water.

I'll give you a scale here to help you understand why:

Many producing wells in Alberta look like this:

surface
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|| fresh water aquifer bottom (400 m from surface)
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|| 1000 m depth
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|| 1500 m depth
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|| 1900 m depth - target zone. THIS IS WHERE THEY FRAC.
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And probably the majority of fracked wells are up to twice deeper than this. A frac cannot propagate 1500 m upwards through the ground. They can go maybe 10 to 20 m high. Maybe. Your service company might tell you more so they can sell you more sand.

So you can't even see the frac propagation path on the scale of that diagram!

So if a well like this is at fault for contaminating fresh ground water, how does that happen? Simple: poor well construction (again, this is not fracking!). That pipe you see running along the length of the well, plus the cement surrounding it. THOSE ARE THE THINGS THE ENVIRONMENTALISTS SHOULD BE TARGETING!! But they don't. Why? Because most of them are probably just like this Exxon CEO that doesn't like the increased trucking activity around them that fracking very much IS responsible for.

It has nothing to do with the fracturing process itself being hazardous.

Now, this comes with a caveat which I alluded to in the earlier post; if the oil/gas producer is interested in a zone that is much closer to the aquifer, then I concede, fracking can possibly be a problem. There's not much evidence to prove that this is a widespread problem, but as with any human endeavour, there are those who practice things responsibly and those who don't. Governments do need to become informed and ensure their policies address issues like this.

But back to your flammable water. The things I would take a serious look at before blaming fracking?
1) integrity of the water well itself
2) geological strata water well breaches (ie, coal seams!)
3) pipeline and other infrastructure integrity in the area
4) cement integrity of the nearby oil/gas well
5) casing integrity of the nearby oil/gas well
6) okay, let's look at the frac:
a) what depth is the aquifer at
b) what depth is the frac at
c) if they're within a reasonable distance, I would start looking at the likelihood of communication. Carbon isotopes, maybe radioactive tracers. Though if methane scares you.....

Clear? It's a complicated industry that people train their entire lives to understand and become good at their jobs. Some youtube video of someone lighting tap water on fire is laughably short of being able to make any conclusions. This is why we get so fired up when we get challenged. It's downright insulting.

Is that scale to scale?
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