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Class I wells inject hazardous and non-hazardous wastes into deep, isolated rock formations that are thousands of feet below the lowermost USDW.
Class I wells are used mainly by the following industries:
Municipal Wastewater Treatment
Hydrofracking was first used by the natural gas industry in 1947, when the Stanolind Oil and Gas Corporation experimented with the technique in the Hugoton field in Kansas. The following year, the Haliburton Oil Well Cementing Company received a patent for the “hydrafrac” process which they first used in March 1949 on wells in Texas and Oklahoma2.
The United States Geological Survey (USGS) issued a press release yesterday indicating that the magnitude 5.7 earthquake that struck Prague, Oklahoma in 2011 was unintentionally human-induced.
The USGS claims that the magnitude 5.0 earthquake triggered by waste-water injection the previous day “trigger[ed] a cascade of earthquakes, including a larger one, [which] has important implications for reducing the seismic risk from waste-water injection.”
U.S. Geological Survey confirms: Human activity caused 5.7 quake in Oklahoma
This is great news! Perhaps the Fraking industry will now be held accountable for earthquake induced damage. I have known that fraking is not only bad for the water but bad for the planets crust. Simple logic dictates that if one cracks the rocks a mile deep that stability will be affected.
Does this count as Human Induced Climate Change? Seems it should be as when when starts having quakes where none were previously present.
BTW I tossed in the climate change thing just to wind up the deniers.
reply to post by Phage
Hi Phage, I am curious what other industries or practices utilize injection wells? I googled it with no good luck and suspect that fracking and it's related procedures are responsible for 90+% of injection wells,both currently and historically. I am guessing with that number but I can't find anything else that uses injection wells enough and may potentially contribute to the seismic activity.I do realize that wells were dug back in the day for oil drilling, but I think in recent years these wells have been used to not only facilitate the injecting, but using existing wells to store the water after it is processed. This is why I feel most injection wells these days are related to fracking.edit on 7-3-2014 by speculativeoptimist because: (no reason given)
[which] has important implications for reducing the seismic risk from waste-water injection.”
You can prevent large earthquakes by making lots of small ones, or by "lubricating" the fault with water
FICTION: Seismologists have observed that for every magnitude 6 earthquake there are about 10 of magnitude 5, 100 of magnitude 4, 1,000 of magnitude 3, and so forth as the events get smaller and smaller. This sounds like a lot of small earthquakes, but there are never enough small ones to eliminate the occasional large event. It would take 32 magnitude 5's, 1000 magnitude 4's, OR 32,000 magnitude 3's to equal the energy of one magnitude 6 event. So, even though we always record many more small events than large ones, there are far too few to eliminate the need for the occasional large earthquake. As for "lubricating" faults with water or some other substance, if anything, this would have the opposite effect. Injecting high- pressure fluids deep into the ground is known to be able to trigger earthquakes—to cause them to occur sooner than would have been the case without the injection. This would be a dangerous pursuit in any populated area, as one might trigger a damaging earthquake.
I understand the requirements for Breaking Alternative News. That doesn't excuse distortions in headlines or the text of the article. Such distortions are not conducive to denying ignorance.
reply to post by Mamatus
Despite this risk, authorities in Oklahoma continue to allow waste-water injection near the Wilzetta fault.
Oh well, guess the risk doesn't outweigh the rewards. It's just a few tremors, no big deal. My concern with these fracking operations is groundwater/table contamination in general but especially with these quakes occurring, potentially connecting the chemical treated water to a good water source. It is logically inevitable, no?
More links with other states cleaning tremors from drilling and injection.
Smaller earthquakes tied to oil and gas activities in the past few years have triggered bigger reactions in other states.
In Texas, Chesapeake Energy Corp. shut down two wells near the Dallas-Fort Worth Airport in 2009 after they were linked to much smaller, magnitude-3.3 quakes (Greenwire, March 11, 2010).
I don't believe that the big quake in Oklahoma could be caused by a water injection. We are about 125 miles away from that quake and it brought down ceiling fans, cracked sheetrock and knocked things around pretty good. So how can water put enough pressure on rock to make a quake strong enough to harm homes over 100 miles away?
Don't get me wrong I think fracking is a bad deal but I believe there is more to the story here. I have lived in Oklahoma for 53 years, the quakes just began here a few years ago, before that nothing. The gov. run quake reporting sites are dropping quakes off their reports too. Something besides fracking is going on IMHO