Skip to comments.Report: Don't worry much about quakes and 'fracking'
Posted on 06/16/2012 8:42:35 AM PDT by Hojczyk
The controversial practice of hydraulic fracturing to extract natural gas does not pose a high risk for triggering earthquakes large enough to feel, but other types of energy-related drilling can make the ground noticeably shake, a major government science report concludes.
Even those man-made tremors large enough to be an issue are very rare, says a special report by the National Research Council. In more than 90 years of monitoring, human activity has been shown to trigger only 154 quakes, most of them moderate or small, and only 60 of them in the United States. That's compared to a global average of about 14,450 earthquakes of magnitude 4.0 or greater every year, said the report, released Friday.
The man-made quakes that Ellsworth has been seeing are almost all related to wastewater injection, he said. Ellsworth said he agreed with the research council that "hydraulic fracturing does not seem to pose much risk for earthquake activity."
If the country starts capturing the global warming gas carbon dioxide from coal power plants and injecting it underground, there is a potential for a larger quakes given the amount of the heat-trapping gas that would have to be buried, the council's report said. That's an issue that needs more study, it said.
Congress and the Department of Energy requested the 240-page report.
(Excerpt) Read more at msnbc.msn.com ...
The EPA will get someone to says tracking is bad and we my stop and study more....all these people who take environmental science in college need government jobs...
Capturing carbon dioxide and injecting it into the ground. Madness.
Liberals do not care about facts.
Hysteria rules the day!
Injection wells cause earthquakes!
It’s not something that keeps the population awake at night.
***Capturing carbon dioxide and injecting it into the ground. Madness.***
There is an underground rock formation known as the BRAVO DOME in NE New Mexico that has trapped natural formed CO2 under pressure.
CO2 from it used to be made into dry ice.
See, didn’t stop the last apokeelypse either.
What were those Mayans thinking!
Tioga County in New York state has agreed to test out the new clean fracking method on 135,000 Acres of Marcellus shale.
I believe the clean fracking method does not use water injection , but uses the same gas that is retrieved from fracking the shale to inject back into the well to do the fracking. There is no additional chemicals or water needed and there is no waste water disposal problem.
It is not, first of all, economically feasible to capture carbon dioxide and inject it into the deep strata, though in theory, it would make an excellent means of reclaiming “spent” petroleum and natural gas wells.
Under sufficient pressure, carbon dioxide is a colorless liquid, and a non-polar solvent, excellent for dissolving trapped kerogen molecules, and washing them out of the rock strata in which they are held. But when carbon dioxide reaches a certain temperature, it turns to a gas, regardless of the pressure, though it still behaves very much like a liquid so long as the pressure is not released.
Under these conditions, and in the presence of a reducing agent, the oxygen may be stripped off the carbon atom, forming free carbon, which then becomes the beginning of the formation of graphite, or coal, or even diamonds, depending on the ambient pressure and temperature. And here you probably thought all the time that coal was formed by compressed layers of peat that got trapped under sedimentary rock.
Carbon goes through cycles of becoming carbon dioxide, to free oxygen and carbohydrates in the presence of water, to methane in the absence of oxygen, and back to carbon dioxide when the methane or other carbon coumpounds are burned in the presence of oxygen.
The mechanics of capturing carbon dioxide from the exhaust stack of a power generation plant are simple enough - just cool the exhaust stream to a sufficiently low temperature, and the CO2 is collected as “dry ice”. As long as the temperature is kept low enough, “dry ice” is stable, and relatively easy to transport.
Only, it would probably take more power than the power generation plant can produce, to cool the exhaust stream to low enough temperature to collect the solid form of CO2.
Besides, the living plant growth of this planet should not be deprived of their continuing source of carbon dioxide, which is, after all, plant food.
I say, let’s getting those exhaust stacks blowing all their output of CO2 into the open air.
We now not only raise the global temperature, we create earthquakes. Behold the mighty arm of man! /s
“Major government science report.”
Clearly a biased gaggle of oil company flunkies totally ignoring the science. The science is settled; the debate is over!
Already done as a secondary recovery technique in oil fields.
One of the new methods uses propane as a frac fluid. The problem with using CO2 to frac is that it would be more difficult to separate from the natural gas produced, and it won’t burn.
Do they get it from coal fired power plants?