Fracking Earthquakes: Hydraulic Fracturing Causes 'Remarkable' Increase In Quakes, Tremors, Studies Report

Posted: 04/17/2012 4:00 am Updated: 04/17/2012 1:23 pm

Fracking Earthquakes
Men with Cabot Oil and Gas work on a natural gas valve at a hydraulic fracturing site on January 18, 2012 in South Montrose, Pennsylvania. Two new studies confirm that hydraulic fracturing, or fracking, can trigger manmade earthquakes when water, sand and chemicals are blasted deep into the ground to fracture rock to obtain oil and natural gas. (AP File Photo)

VANCOUVER - Two separate studies are providing insights into the earth-shaking consequences of the controversial gas extraction process known as fracking.

Both studies confirm that hydraulic fracturing, or fracking, can trigger manmade earthquakes when water, sand and chemicals are blasted deep into the ground to fracture rock to obtain oil and natural gas.

Energy companies are increasingly using the technique across Canada, including in B.C. where there is already regular seismic activity and an ever looming threat of various sized tremors.

The U.S. Geological Survey is set to release its findings Wednesday that a "remarkable" increase of quakes in the U.S. midcontinent since 2001 is "almost certainly" the result of oil and gas production.

U.K. experts, meanwhile, point to a study released Monday that found recent earthquakes in northwest England were caused by fluid injection into a nearby fault zone as evidence fracking can be safe when conducted by responsible operators.

Opposition to fracking has ramped up since the release of the 2010 documentary "Gasland," which shows residents of small town Colorado setting alight tap water they charge was soured by nearby oil industry activity.

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VANCOUVER - Two separate studies are providing insights into the earth-shaking consequences of the controversial gas extraction process known as fracking.Both studies confirm that hydraulic fracturing...
VANCOUVER - Two separate studies are providing insights into the earth-shaking consequences of the controversial gas extraction process known as fracking.Both studies confirm that hydraulic fracturing...
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01:22 PM on 04/18/2012
The fraccing process is apparently too complicated for most folks to understand. The wells that seem to be causing seismic activity that I've heard about are the "fracing fluid disposal wells" not the actual frac-ed wells.

To frac a well they drill a hole, usually bending over to horizontal drilling at some depth. Then they case it with pipe to "seal" the hole. Then they perforate the pipe at the deepest/farthest point and hook up the high pressure injection gear and pump fluid + proppant (sand/ceramic.. something to "prop" open the cracks that are formed by the high pressure injection) into the well to shatter the rock in the perforated area. Then they pump out all fluid and install a plug upstream of that first frac point and repeat the perforate/frac cycle. Repeat all that for a number of cycles. The last step is to put a drill bit back in the pipe and drill out all of the plugs and clear out ALL fluid to allow the oil/gas to flow up the pipe.

At the end of this you have a large amount of waste fluid from the entire process. This has to go some place right? They are called "waste-water injection wells". The LAST thing you'd want to do is inject this into your producing formation so instead it is pumped into dry wells and kinda "wherever".
11:49 PM on 05/09/2012
Ok I would prefer to have the process explained to me by someone who can spell the word fracking. Thanks though.
12:35 PM on 04/18/2012
You know what I find interesting? That this story about fracking in Canada news receives humorous and somewhat thoughtful comments. A similar story about fracking in the States gets lambasted with negative feedback with "liberal media" "treehugging agenda" "junk science" and (somehow) "Obama sucks" - or something like that. I love you Canadians.
10:55 AM on 04/18/2012
Here in Alberta, those mother-frackers don't produce "waste water". They euphemistically refer to it as "processed water". Doesn't that sound much healthier, less threatening?

http://www.ernstversusencana.ca/
09:31 PM on 04/17/2012
The solution is waterless fracturing, it is Canadian technology, it uses LPG instead of water, it doesn't produce waste water and thus doesn't require injection wells, which are apparently the cause of the quakes.
01:39 PM on 04/18/2012
I didn't know about this but did some looking. This is VERY promising. An elegant solution that is kind of a win/win/win scenario.
- Better results in terms of costs to do the original fracture (less site access required, less water to procure and ship)
- Better results in terms of well production
- And oh whoops by accident it means no toxic frac waste water to dispose of.
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HUFFPOST SUPER USER
samseed
We're here for a good time, not a long time
01:38 PM on 04/17/2012
Sickening,... and yet Harper wants to make it easier for these pigs to destroy our world.
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HUFFPOST SUPER USER
Kritikos
Intelligence is not a science
10:10 AM on 04/17/2012
Fracking with mother nature is not a good thing--you'll see (of feel) as they go.
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freeSpeakr
I stand on the shoulders of giants
08:36 AM on 04/17/2012
Saw this a few weeks back. Very informative. I've seen news reports of Albertans lighting their water on fire as it comes out of the tap. This asnd all the other evidence I've seen tells me things are a lot worse than our right-wing/big business/small-minded gov'ts.

Gasland Trailer http://goo.gl/c1e8
georgee2
My Canada Includes Everyone
08:33 AM on 04/17/2012
Fracking is a very bad way to get gas out of the ground. It creates many problems. This is only 1 of them. But of course we will be forced by our governments to accept it.
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HUFFPOST SUPER USER
Mr e MaN
Political Atheist
09:47 AM on 04/17/2012
And by government you mean corporations.
07:49 AM on 04/17/2012
You will see a concerted attack on these and any other studies that seek to prove this kind of thing. The oil and gas industry realizes that the relatively easy to get at sources of oil and gas are finite and are determined find ways an means to maintain profits and above all increase stock prices.