USGS Suggests Connection Between Seismic Activity and Fracking

First time accepted submitter samazon writes "According to a recently proposed abstract by the United States Geological Survey, hydraulic fracturing, or more specifically the disposal of fracking wastewater, may be directly correlated to the increase in seismic activity in the midwest. Results of the paper will be presented on April 18th, but the language of the abstract seems to imply that there is a connection. After years of controversy regarding hydrofracking including ground water contamination and disclosure of chemical solutions, the results of the study, if conclusive, could influence the cost of natural gas due to increased regulations on wastewater disposal." The actual language of the abstract leaves a fair amount of wiggle room: "While the seismicity rate changes described here are almost certainly manmade, it remains to be determined how they are related to either changes in extraction methodologies or the rate of oil and gas production."

Comments

Re:Can it prevent large earthquakes?

[estitabarnak]

No, for a number of reasons. Even if smaller quakes simply "relieved stress," preventing larger quakes, the Richter scale is logarithmic so it'd take many small quakes to prevent a large one. USGS agrees: http://earthquake.usgs.gov/learn/topics/megaqk_facts_fantasy.php

Thanks USGS - Posting from France

[BlueTak]

Hi, I'm posting from the soviet republic of France, guided by the Great and Beloved Leader Nicolas Sarkozy, friend of your former socialist président George Bush. Here, we are fighting against fracking for a couple of years. Of course, we rely on brave american activists for our information, cause your still ahead of us in terms of pollution and destructing environment, but it's even better when scientists bring their share.

Re:The Lost Discoveries of Hydralic Fracturing

[Gideon Wells]

Hydraulic fracturing being invented in 1940s is like saying that hybrid cars were invented back in 1769 with the invention of the first automobile.

What hydraulic fracturing being performed today is a variant that was first tested back in 1991, horizontal drilling. Those prior studied were concerned with fracturing processes that were drilling straight down. Not down then a 90 degree turn for as far as a 15-3000m meters depending on the region. The ends are a set length, the farther down they go the less than go horizontal.

Secondly, the abstract wasn't directly talking about hydraulic fracturing directly, just a way they are using to dispose of their waste, injection wells. So you might be right even if you weren't talking about the wrong type of hydraulic fracturing. Ohio currently suspended parts of the shale industry after they noticed an uptick in quakes linked to injections wells.

So the good news is, for the industry and those supporting the natural gas industry, it is the waste disposal method that seems to be causing the problem, not the production itself.