State geologists in Ohio have for the first time linked earthquakes in a geologic formation deep under the Appalachians to gas drilling, leading the state to issue new permit conditions in certain areas that are among the nation's strictest.
A state investigation of five small tremors in the Youngstown area, in the Appalachian foothills, last month has found the high-pressure injection of sand and water that accompanies hydraulic fracturing, or fracking, in the Utica Shale may have increased pressure on a small, unknown fault, said State Oil & Gas Chief Rick Simmers. He called the link "probable."
While earlier studies had linked earthquakes in the same region to deep-injection wells used for disposal of fracking wastewater, this marks the first time tremors have been tied directly to fracking, Simmers said. Five seismic events in March were all part of what was considered a single event and couldn't be easily felt by people.
The state's new permit conditions are perhaps the most cautious yet put in place in the nation, he said.
Glenda Besana-Ostman, a seismologist with the U.S. Department of the Interior's Bureau of Reclamation, confirmed the finding is the first in the region to suggest a connection between the quakes and the actual extraction of oil and gas, as opposed to wastewater disposal. A deep-injection well in the same region of Ohio was found to be the likely cause of a series of quakes in the same region of Ohio in 2012.
Under the new permit conditions, all new drilling sites in Ohio within 3 miles of a known fault or seismic activity of 2.0 magnitude or higher will be conditioned on the installation of sensitive seismic-monitoring equipment. Results will be directly available to regulators, Simmers said, so the state isn't reliant on drilling operators providing the data voluntarily.
If seismic activity of 1.0 magnitude or greater is felt, drilling will be paused for evaluation. If a link is found, the operation will be halted.
"While we can never be 100 percent sure that drilling activities are connected to a seismic event, caution dictates that we take these new steps to protect human health, safety and the environment," said James Zehringer, director of Ohio's natural resources department.
Ohio has also imposed an indefinite drilling moratorium at the site of the March quakes. The state is allowing oil and gas extraction to continue at five existing wells at the site.
The Utica Shale lies beneath the better-known Marcellus Shale, where energy companies have drilled thousands of unconventional gas wells in Pennsylvania, Ohio and West Virginia in recent years.
The Marcellus is considered to be one of the richest natural gas reserves in the world. Drillers have only recently begun to tap into the deeper Utica.
--By The Associated Press
Please send that to the Associated press. I just copy and paste.
Both the NBC Evening News and the CBS Evening News carried the story on this evening's broadcast.
Did they say anything about how this will affect wells already permitted but not fracked?
The Highlandtown Fault in Columbiana County runs through Wayne Twp, Franklin Twp, and Hanover Twp.
According to a report from 1986 The Highlandtown Fault is approximately 20 miles long (looking at the map) running northwest from East Liverpool. Attached is a link.
https://kb.osu.edu/dspace/bitstream/handle/1811/23152/V086N4_161.pd...
Wells such as Manziel, Albeneso, McKarns, Henceroth, Andrulis, are within that 3mile zone of the fault line. Will they be required to have the seismic sensors?
Here is a copy of the OSU paper.
looks like some interesting stuff.
The ODNR map below gives a more detailed view.
ODNR was kind enough to give us a map of the faults and seismic activity in Ohio. Here is the link and a PDF of the map.
http://oilandgas.ohiodnr.gov/portals/oilgas/pdf/EG-2_2014_MAPONLY.pdf
"All too often the folks spewing their opinion try to portray it as fact."
I agree wholeheartedly, however both sides have been doing this.... including the heading of this thread.
There is no proof yet that supports the claim that the two are linked, just maybes, could have, might have, looks like it has, wording in these statements. There are just too many unknown variables at this time to make that assertion.
I am glad they will be adding the needed equipment to the area involved to answer the question once and for all, but it will take some time.
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